CORNELL UNIVERSITY LIBRARY FROM 83. THE Sue. _ _ MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES IN 1882 before it reached the printer, and the warm praise lavished upon the plan of the work, revealed very clearly to the Compiler that the greatest success of his idea could be obtained only through an annual issue. It has been determined therefore to publish a volume yearly, and to make such issue the manual of American Mining Interests. With this as the laudable objective point, the Publishers announce the issue of THE MINES, MINERS AND MINING INTERESTS OP THE UNITED STATES IN 1883. This volume it is earnestly intended shall be a compilation of the greatest value. Matters that in the volume for 1882 are passed over lightly, or not mentioned at all for want of time and public confidence, will receive next year the fullest expert attention. Strong efforts will be made to cover every known interest that the volume reaches. Our own statistics from every State and Territory will be at the reader's disposal. The ablest expert engineers have already been enlisted for its pages. The illustrations will be drawn for us. A series of magnificent original maps will adorn the pages, and no expense wiU be spared in order that the MINES, MINERS AND MINING INTER- ESTS OF THE UNITED STATES IN 1883 shall adequately represent its high aims. The difiiculty of obtaining reliable Mining statistics and the best mining infor- mation, will be readily overcome if our readers will co-operate with us, and furnish such information as they may possess. Criticisms upon the present volume will be thankfiiUy received, and suggestions gladly adopted. We are satisfied that the Mining Interests of this country are in need of just such u, publication as we have projected. To atiain our highest ambition the co-operation of the public is necessary. Your sincere support is therefore solicited. THE MINING INDUSTRIAL PUBLISHING BUREAU: 4.27 Walnut Street, PHILADELPHIA, Cornell University Library arY897 Mines miners & mining Interests of the 3 1924 032 183 521 olin.anx ■v. Cornell University Library The original of this book is in the Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924032183521 THE Mines, Miners and Mining Interests OF THE UNITED STATES IN 1882: THE GRAND CANON OF THE COLORADO. No MAN WHO ENTERS THE GEOLOGICAL FIELD IN QUEST OF THE WONDERFUL, NEED PAS^ IN THE PURSUIT OF HIS OBJECT, FROM THE TRUE TO THE FICTITIOUS — Hugh Miller THE Mines, Miners and Mining Interests OF THE United States IN 1882 COMPILED BY WILLIAM RALSTON BALCH PHILADELPHIA THE MINING INDUSTRIAL PUBLISHING BUREAU UHIVu,li Y If . !; I. If V ^f^^^tt ,NTERE[) AGSOHDING TO A6T OF CONGRESS IN THE YEAR 1882 WILLIA m^raZstok N BALCH 3n % (Office of tl]e £tbraricin of (Sangrcss, at iDasljingtan. « -^s^*' ' I ♦ ^:^ ^^-l8> ■'■ 3=:=l<" "- ^'«=- The Composition op Reading Matter and the Press Work upon- this Volume was done by GRANT, FAIRES &. RODGERS The Composition of Advektjsing Pages by /cornel? university \LIBRARV EDWARD STERN & CO The Frontispiece was Drawn [From a Painting by Tliumas Moran) by FRED. B. SCHELL and Engraved on Wood by The Remaining Illustrations and the Maps were executed bv The Book was Bound by ^,^^ .^^.,,^^4^1^... J. W. LAUDERBACH THE LEVYTYPE COMPANY WILLIAM MARLEY &. CO ^:!ir,iln nf l>nniT}atinn rPriKl^ ^f iU^ r>^.« ^„+I \Ti ^f *l,~ kt n ;-.. ~ it*; 'i x_ ., . _: - _ mi. _ it ._ n li . of the Coal-Pields of the United Kingdom— Product of the various Coal-Fields in 1860, 16T0 and 1881- Statistics of the Coal Production in the United Kingdom— The Great Northern Coal-Pield of Great Britain-The Midland Coal-Pieid of Great Britain— The Cumberland Coal-Field of Great Britain— The Lancashire Coal-Field of Great Britain— The Leicestershire Coal-Field of Great Britain— The Gold Fields of Nova Scotia— Estimated Cost of Crushing Gold Ores— Tables showing the Assays of Nova Scotia Gold Ores— General Annual Summary respecting the Nova Scotia Gold Fields— Bare Minerals of California— New Mineral Localities in California— Occurrence of Vanadates of Lead at the Castle Dome Mines— Interesting Statistics from Foreign Countries— Coal Production of Great Britain— Table •showing the Growth of the Pig Iron Industry of Great Britain from 1740 to 1881— Manufactured Iron in Great Britain— Bessemer Steel m Great Britain— Table of the Total Exports of Iron and Steel from Great Britain— Production of Pig Iron in (he German Empire— The Iron Indu3tr.r of Luxemburg— The Production of Pig Iron in France— Table Relative to the TarifF— The Production of Pig Iron in Belgium— The Iron Trade of Austria and Hungary— Statistics of the Iron and Steel Production of Sweden— Iron Ore Exports of Spain- Iron Industry of Italy— Imports and Exports of Iron, Steel and Coal of Russia— Statistics of Mineral Production- The Hardware Industry of Great Britain— Minerals of Great Britain— Production of Gold in Australia— Gold Production of New South Wales— The Gold Fields of Victoria- Minerals and Metals of France— Mineral Industries of G-rmany- Minerals and Manufactures of Belgium- Swedish Manufactures- Manufactures and Minerals of Russia— Exports and Imports of Austria-Hungary- Minerals of Spain— The Mineral Productions of Italy— Great Britain's Coal and Iron Output in 1881— Consumption of Coal in France— Quicksilver Production in Spain— Quicksilver Production of the Almaden Mine during 18S1— Russian Coal Statistics. Baeea 159 to 267 - » > <■» i PART IV. r I lECHNICAL Education^The University of Pennsylvania — Faculty of the University — Courses of Instruction in the University of Pennsylvania— The Lehigh University— Faculty of the Lehigh University— Courses of Instruction in the Lehigh University— Lafayette College, Easton, Pa. — Faculty of Lafayette College— Courses of Instruction in Lafayette College — The Industrial School for Miners and Mechanics, at Drifton, Luzerne Co., Pa. — School of Mines, Columbia College, New York City — Faculty of the School of Mines— Courses of Instruction in the School of Mines — A Summer School of Practical Mining — The Stevens Institute of Technology, Hoboken, N. J. — Facultj' of the Stevens Institute of Technology — Courses of Instruction in the Stevens Institute of Technology—Sheffield Scientific School, Yale College, New Haven— Faculty of the Sheffield Scientific School — Courses of Instruction in the Sheffield Scientific School — Lawrence Scientific School, Harvard University, Cambridge, Mass. — Faculty of the Lawrence Scientific School — Courses of Instruction in the Lawrence Scientific School— Massachusetts Institute of Technology, Boston— Faculty and Officers of the Massachusetts Institute of Technology— Courses of Instruction in the Massachusetts Institute of Technology— A Mining Laboratorj^— Cornell University, Ithaca, N. Y. — Faculty of Cornell University — Courses of Instruction in Cornell University — University of Michigan, Ann Harbor — ■ Faculty of the University of 3richigan — Courses of Instruction in the University of Michigan — Colorado State School of Mines— Faculty of the Colorado State School of Mines — Courses of Instruction in the Colorado Stare School of JMines — University of California, Berkeley, California— Faculty of the University of California— Courses of Instruction in the University of California— American Students of Mining in Germany — Friedburg Academy, Germany — Professors and Subjects of Instruction in the Freidburg Academy — The American Institute of Mining Engineers — Rules and Officers of the American Institute of Mining Engineers — The National Mining Exhibition at Denver, Colorado— Classification of Departments in the National Mining Exhibition at Denver — The United States Geological Survey and its Work — The Mining and Scientific Press of the United States— The California Mining Bureau— The California State Geological Society. Pages . . ' . 267 to 359 — — »"«4 T PART V. HE Report of the Director of the Mint — Table showing the Amount and Character of the Deposits at the Mints— Table showing the Purchases at the Coining Mints and the New York Assay Office— Table of the Coinage and Distribution at each Mint — Estimation of the Values of Foreign Coins— Philadelphia Mint— San Francisco Mint— Carson Mint — New Orleans Mint— New York Assay Office— Denver Mint and Assay Offices at Charlotte, Helena, Boise City and St. Louis — Coin Circulation of the United States — Table of the Deposits and Purchases of Gold and Silver Bullion during the year ended June 30, 1881 — Table of the Deposits and Purchases of Gold and Silver of Domestic Production — Table of the Coinage executed during the Fiscal Year — Table of the Coinage executed during the Calendar Year— Table showing the Bars Manufactured during the year ended June 30, 1881- Statement of Earnings and Expenditures of the United States Mints and Assay Offices— Wastages and Loss on Sale of Sweeps — Statement cf the Number of Melts of Ingots made and condemned at each Mint — Percentage of Coin produced from Gold and Silver by the Coiners of the Mints, 1874 to 1881 — Table of Domestic Gold and Silver deposited at the Mints and Assay Offices— Statement of Coinage from the Organization of the Mint to the close of the Fiscal Year ended June 30, 1880 — Estimate of Values of Foreign Coins — Table showing the Average Monthly Price of Fine Silver Bars at London — Table showing the Relative Market Value of Gold to Silver — Statement of Imports and Exports of Gold and Silver during the year ended June 30, 1881- Statement by Countries of the Net Imports of American Silver Coin — Table of the Value and Character of the Gold and Silver used in Manufactures and Arts in the United States— Horological Productions of Various Countries— Table of Average L PART V.-CONTINUED. and Comparative Prieef, of the Principal Domestic Commodities Exported from tlie United States— Table Relative to Gold and Currency Prices of Staple Articles in the New York Market— Table of the Value and Character of Gold and Silver used in Manufactures and Arts in the United States— Table of tlie Currency and Gold Prices of Staple Articles in the New York Market compared with the Ratio of Circulation to Population and Wealth — t-Jreat Britain; Gold in the Arts— Ratio of Circulation to Population and Wealth compared with Prices of Staple Articles in the New Yorlt Market— Tables of the Annual Consumption of Gold and Silver in the Arts— Table relative to the movement of Specie in France— Table showing the Specie and Paper Circulation in France from 1850 to 1878— Production of the Precious Metals in Germany— Statement of the Precious Metals used in Austria— Manufactured Gold— Industrial Employment of Silver and Gold in Norway and Sweden— Statement of the Monetary Situation of the Kingdom of Norway— Table of the Articles of Gold Manufactured in or Imported into Sweden from 1848 to 1880— Table of the Articles of Silver Manufactured in or Imported into Sweden frorn 1848 to 1880 — Gold and Silver in Sweden — Gold, Silver and Paper Money in Norway — Tables relative to the Coinage and Circulation of Silver in Norway— Quantity of Gold and Silver in Sweden— Currency in Circulation in Russia— Table of Gold and Silver Coined in the St. Petersburg Mint— Tables of the Deposits of Gold and Silver Coin and Bars on hand in the Treasury of the Empire— Table of the Coinage of Gold in St. Petersburg since 1800— Tables of Gold and Silver Coinage in St. Petersburg at various dates — Tables of the amount of Gold and Silver Coined in Lisbon, Portugal— Statements of the Imports and Exports of Gold and Silver into and from Portugal — Table of the Amount of Gold and Silver Coined under the Metric Decimal System in Italy— Table of Italian Coinage from 1862 till 1878— Summary of the Coinage of the Swiss Mints — Table of the Imports, Exports and Coinage of Gold and Silver of British India — Amount of Gold and Silver Coin and Bullion in the Government Treasuries of British India— Coin and Bullion at the Banks of Bengal, Madras and Bombay— Imports and Exports of Specie into and from the Cape of Good Hope— Bank Reserve and Paper Circulation in the Cape of Good Hope— Table of the Gold and Silver Coin, Bullion and Paper Money in the Banks of Au.stralasia^— Tables of the Coin held by the Banks of Victoria — Imports and Exports of Gold by sea and land into and from New South Wales — Gold in New Zealand— Gold Production in the Australian Colonies— Table of the Gold Production of Victoria— Tables showing the Notes and Specie of the Banks of British Columbia — Imports and Exports of Specie and Bullion into and from .Japan — Table of the Deposits of Gold and Silver at the Mints of Mexico- Tables of the Coinage of the Mints of Mexico by Fiscal Years- Table of the Total Coinage of the Mints of Mexico from their establishment to the present time— Historical Memoranda concerning Gold and Silver — Production of Gold in the State of California Proper— Annual Production in the United States of Gold and Silver— Annual Production of Gold in Australia— Comparative ' leld of the Great Gold Fields of the Modern World— The Western World's Production of Gold and Silver— E.otimated Annual Production of Gold and Silver by the Mines of America from the Discovery to the beginning of the Nineteenth Centurv— Table of the estimated P''oa"otion of Silver in the Western World— Table of the estimated Production of Gold in the Western World— Estimated Production °' "9}° *■"' Silver throughout the World— Proportion of Consumption to Production— The World's Stock of Precious Metals— Table of tlie Estimated Stock of Gold and Silver Coin and the Population of the European World— Ratio between Gold and Silver of Ancient limes— Quantity determining the Ratio of Value between the Precious Metals— Legal Regulations in determining the Ratio of Value between the Precious Metals— The Effect of Law upon Quantity, and of Quantity upon Ratio— EtTeot of Mint charges upon Ratio— Effect ot Arbitrary Decree upon Ratio— Tables showing the Ratio between Gold and Silver in Ancient Times— The Ratio between Gold and bilver in IModern Times— The Mint Ratios of Spain— The Optional Standard in France- The Optional Standard in England— The Silver btandard in the United States— Tables of the Average Annual Market Ratio between Gold and Silver from 1760 to 1878, and- the Average Monthly Ratio from 1873 to the present time— The History of the Relative Values of Gold and Silver— Token Coinage— Relative Value of Gold and Silver in Ancient Times— Relative Value of Gold and Silver in the Middle Ages— Relative Value of Gold and Silver from 1492 to the Opening of the Mines in California and Australia— Relative Value of Gold and Silver from 1851 to 1874— Commonplace Fallacies concerning Money -Views of Mr. Bonamy Price on the Value of Money— Effects of a Scarcity of Cash— Slow Monetary Contraction orises— Ihe Fiat Money Theory— Power of the Law with regard to Money— The Purchase Power of the Monetary Metals— Table of the Annual Production of Gold and Silver from 1840 to lS79-StabiIity in the Legal Tender— Bimetallic Coinage— The Future of Gold— Atiriterous Hocks— Auriferous Veins— Auriferous Alluvium— The Bonanza of Gold Hill— Table showing the decline of Gold in Australia- wiiy Gold and Sliver are used for Money— The Quantity of the Precious Metals in Greece- The Principal Enochs in the Modern tt-oduction ot the Precious Metals— Table showing the Stock of Coin in Christendom— The Effects of Prosperous Mining— Bimetallism : bingle and Double Standards— Standard Measure of Value— The Value of the Precious Metals but slightly affected by their Employment *^. ™°"^?-; i^roduction of Precious Metals from 1800 to 1879— Exports of Silver to the East from Great Britain and Mediterranean Ports— ir ?!, S i'?!"*^^ PC'*''?''* Britain-Silver Stocked by Western Nations— Consumption of Silver as affected by Important Changes in jMetnoas 01 Oriental Exchange-True Cause of the Depreciation of Silver— The Increase of Money Needed— Depreciation of Silver but siigntiy Attected by Its Demonetization— Why Double Standards have always failed and must continue to do so— Monetary Functions of i°^, T?" , Monetary Functions of Coin on the Exchangeable Value of the Precious Metals— Mr. Mulhall's Estimates upon Gold ana bilver— Banks and Paper Money— Table showing the Ratio of convertible Paper Money to Population— Finances and Wealth— Table Showing the Increase in the Chief Products— Sir Hector Hay's Estimate of the Production of Precious Metals— Figures and Facts in consumption and Distvibiition of Precious Metals— Present Monetary Standard of the Nations of the World-Gold Standard Countries- Countries having Double Standard— Countries having Silver Standard— Table of the Production of Gold and Silver from 1492 to 1879— w„ 1 j° -f ifi Constimption of Gold and Silver by India and the East— Amount of Gold and Silver in use by the Principal Countries of the .V^r T?~* J Q.^f " ,? Relative Values of Gold to Silver— Relation of Gold to Silver in the London Market— Minute on the Standard of tne united atates-How Money is Made— Proceedings of the Assay Commission of 1882— Report of the Committee on the Weight of coins at the Philadelphia,, San Francisco, Carson and New Orleans Mints- Laws Relating to the Reservation of Coins for the Annual Assay— Rules of the Board of Assay Commissioners. ^^Ses ... . 359 to 468 »•"» PART VI. AW of Mining Stock Brokers and Mining Stock Engineers-Legal Relation of Stock-broker to his Client-Annals of the New York Stock Exchange-Definitions of Wall Street Terms-The New fork Mining Stock Market-Mining Stock SdianKes-The Americaii Min^n^ and StocTc Exehange-The New York Mining Stock Eifchange-OflScers of fhe New Yoil"i[ining S^tock Shanet-rSitutim an! By-Laws of he New York Mining Stock ExcTiange-Names of the Stocks listed at the New York Mini4 Stock l^mni^^^ rfining Stock Exchange-By-Laws and Rules and Regulations of the American Mining S^ocl^EfchMie-StoolS^isted^^^ the Ainerican Mining Stock Exchange-The Mining Stock Market-Tablo of the Prices Sid Num&i" f sfares of Stotfk sold at thl^Jt York Mining Exchanees-Table of tTie Total Transactions in Stocks dealt in at the New York Mining Exchanges-Table of Prices It the New York Stock Exchange-Goveroment of the New York Stock Exchange-The Bullion Production for 1882-Tabferpl„tvft„^ Iht Sirph1a^'s°t«a^rref-Ti;^e«S&^ piX^!^^:^^^^ li^ch!n1^.=D^-"r«St?ct ^^^^^l^lX^S^^iS !^?^ ?roduT, 'iff: Tc"'"^ '"-Jl" States^nd Territories west of thfMisso'ud Rivlr-pfccious^Metals^rc';;^^^^^^^ ^S^I?S"gi'lV7i?'^r„X^^ and By-Law! of theB^nFmneiZoHtnckLdT^^^^ p ''if ^S-" ^.^n^^co Stock and Exchange BoarS-Constitution Comstock Shares-Table" orthe HigW ami LowSt P®ric?s of^^^^^ ■®'<'^^, Bxchange-^Dealings in the the Highest Prices of Mining Stock! in San Fiancffco-'rhp1?,,(n?irS^ ®'S', '^™n<'>s™ Share Market in 1882-Table of OflaeerS and Board of Managers of the New Yn^.h^STlndlM^V^^:^^^^^^^^ ".?" \"'''^ ^'■™ ""<* '*^'^'a"' Exchanges- Code of Rules of the New York Iron and J?etal Exo Zio Th^ tL^ o^^ & J" i^^^^ "^ "A*' ''"^ ^ '"■'^' ''■"" I"'! Metal Exchange- Market to June 30, 1882-Table of Price" for Iron hi New^oric Stnlemp^ J n '''b'^''''''""'^^^ Limited-A Review of the fron Prices of Pittsburg Iron-A Review Sf the C, ™ Market to TmieioTsR. ?n,i,n„™r'""sf*^'"''' ^^Vt^ °*' "^'^ United States-Table of Anthracite Coal jfining in Ponn.^y^vania-D^triSion of Anthracite (^i^^f^^^^ '^^^ Anthracite Coal Production- Distribution of the LaKe Superior Copper Y 3d in 1881-Tn" e showlnrthe Valnr^f ?r'?'r *^ Copper Market to .Tune 30.1SS2- Market to June, 1882-Table 'showing l^he Tin Product of the Worid-a^at^eind c flint S!w v?°P,P''v!; '^'^ *^T YorU-Roview of tho Tin Banca Tin-Table of the Net Imports of Tin in tl?e United StS-R^^Tvlewr^??^^^^^^^ f"''"" ^"^ Tin-Table of Prices of Price of Common Domestic Lea/at New C-lt-Review of the Spei^i? M T^.b^'^f'*?! l^S^-Table of the Average New York-Review of the Quicksilver Market to June 30, 1882-TTble of Uie Production o?'calif7rnia Mineriu 188? ""'°" ''''"""' ^' Pages . 468 to 541 M A 'T PART VI I. INING and Mining Law among the Ancients— Mines of the Persians and Egyptians— A.ncienfc Mining in Siberia and Europe — Mining in Greece — Ancient Mining in Western Europe — Mining of the Romans— Mining Law in the Middle A^es — German Mining Codes of'the Sixteenth and Seventeenth Centuries— A Scheme of Organizing Mining in Germany— The SpanWh Mining Law— Modern German Codes — The New Prussian Mining Law— Tlie Code of France— Classified Minos of France— Mming Law of England— Open Letter of Baymond on Mineral Lands as a part of the Public Domain — Tlie Government Organization — Business of tlie Secretary of the Interior relative to Mines and Public Lands— The General Ijand Office— Administration of the Land Service— Duties of the Commissioner— Importance of the General Land Office— Present Organization of the General Land Office— Surveyors-Genera! prior to 1825— Sin- veyors- General within States or Territories— Registers and Receivers in Land Districts — List of Offices of Surveyor-General — List of Surveying Districts and Surveyors-General — List of Local Land Offices from May in, 1800 to June 30, 1880— List of Existing Local Land Offices ana Names of Officers, November 10, 1880— Surveys of the Public Lands— The Rectangular System of Surveys— Methods and System of Land Parceling Surveys — Administration and Method of the Surveys — Execution of Surveys— Geological Surveys of Public Domain under General Xand Office— Method of Surveying Mineral Claims— Classification of Mineral Land— Benefits of the Present System of Land Parceling- Tabular Statement relative to Public Lands— Coat of Surveying under the Rectangular System— Tables showing Cost of Surveys from 1860 to 1881 — Statement showing Surveying Districts and Offices of Surveyors-General — United States Laws relatmg to Surveys and Surveyors — Surveying of Mining Claims in Colorado — Land Districts and Officers— Sale and Disposition of Public LandH- Disposal of Public Lands by Public Offering and Sale— Prices of the Public Lands at Various Periods— Saline Lands— Change in Saline Laws— Table relative to Grants of Salines by Congress — Timber and Timber Culture— Laws respecting Town Sites and County Seats- Laws relative to Mineral Lands — Miscellaneous Provisions relating to the Public Lands— Coal Lands— Estimate of Area of Coal Measure— Table of the Cash Sales of Coal Lands by fiscal years to June 30, 1880— Laws Governing the Sale of Government Coal Lanrls— Mines on the Public Domain— Mineral Reservations in Northwest Territory — Cash Sales of Mineral Lands ordered by CongresH— Mineral Lands in charge of the War Department— The Discovery of Gold in California causing a change in the Mineral' Laws of the United States — Congressional Action as to Metals on the Pacific Slope— ^Local Mining Laws in California — Report of Col. R- B. Mason on the Gold-Fields of California — Mining District under Local Usage; How Organized— Organization and Kules of Mining Camp at Jacksonville, California — The Present Method of Organizing a Mining Camp— Executive and Departmental Recommendations relative to Mineral Lands— Retrospect of Mining Legislation prior to 1806— Estimated Production of Gold and Silver from 1848 to 1880— The Condition of the Precious-Metal Bearing Regions prior to 1866— The Mining Act of July 20, 1866— Placer-Mining Art, July 9, 1870— The Mining Act of May 10, 1872 — Provisions or the existing Mining Law— Cost of Patents to the United States and Claimants — Patents for Placer Claims— The Policy; of the United States in Relation to Mineral Lands— Number of Mining Locations and of Patents — Estimate of Area of Western Precious- Metal Regions— Statement relative to Placer Mining Claims — Sale and Disposition of Public Lands- Rulings of the General Land Office— Lode-Claims Located prior to May 10, 1872— Patents for Veins or Lodes heretofore Issued— Manner of Locating Claims on Veins or Lodes after May 10, 1872 — Rulings of the General Land Office relative to Tunnel Bights— Method of Obtaining Government Title to Vein or Lode Claims- Rulings of the General Land Office relative to Adverse Claims- Quantity of Placer Ground subject to Location— Rulings of the General Land Office relative to Mill Sites — Proof of Citizenship of Mining-Clalmancs — Appointment of Deputy Surveyors of Mining Claims— Charges for Surveys and Publications — Fees of Registers and Receivers— Hearmgs by the General Land Office to establish the Character of Lands — Rules of Practice before Land Officers, the General Land Office and the Department of the Interior — Proceedings before the Commissioner of the General Land Office and Secretary of the Interior— Appeals from the Commissioner to the Secretary — Recent decisions affecting Rights under the Mining Laws of the United States — Decisions regarding the Lizzie Bullock Claims— Decisions regarding the Town Site of Eureka Springs — Decisions regarding Mining Claims in Town Sites — Decisions respecting the Price of Coal Lands— Decisions respecting Relocation by a Co-owner— Decisions regarding the Sutro Tunnel — Decisions "relative to the Mark Twain Lode — Decisions on Expenditures on Mming < laims — Decisionis relative to Locating Mineral Veins— Decision relative to the Richmond Mining Company — Decision as to the Validity of the Shark- Paymaster Case^Uecisions from Carpenter's Mining Code — Decision relative to the Bull of the Woods; American Case— Decision relative to the Bell Tunnel; Ben Harding Case — Decision relative to the Colorado Central; Equator Case — Deciijion regarding the Iron; Grand View Case — Decision regarding the New Discovery ; Little Chief Case— Important Stock Derision— Important Decision relative to Timber on MineralLands— Summary of the General Land Office Annual Report for 1881 — Circular Instructions to Surveyors-General on Fraudulent Surveys — Examination of Surveys in the Field — Table relative to United States Public Lands— Statement relative to the Mineral Lands Division— Report of the Surveyor-General on the Mineral Production of California— Report of the Surveyor-General on the Mineral Production of Montana— Report of the Surveyor-General on the Mineral Production of Nevada — Report of the Surveyor- General on the Mineral Production of New Mexico— Report of the Surveyor-General on the Mineral Production of Utah — Mining Laws of the States and Territories — Mining Laws of Nevada^Mining Laws of Idaho— Mining Lawri of Dakota— Mining Laws of Arizona — Amendment of "Chapter Fifty" of the Howell Code — Mining Laws of Colorado— Mming Laws of New Mexico — Mining Laws of California — Mining Laws of Utah — Mining Laws of Wyoming — Mining Laws of Montana— Mining Laws of Illinois — Mining Laws of Ohio— Mining Laws of Pennsylvania— Mining Laws of Massachusetts— fable showing Interest Laws of Different States — Tiie Dominion of Canada— Laws relating to Public Lands m Canada— Land Laws of Mexico— The Debris Question— The Great Evils of Hydraulic Mining — A Governmental Report on the Evils of Hydraulic Mining — Ancient Drainage— The Hydraulic Mining Industry — Table of Reservoirs on the Yuba, Bear, Feather and American Rivers — Incomplete Statistics of Mining Ditches in California — Table relative to the Grades of Tunnels of Mines on the Yuba River— Estimate of Mining Material moved Annually — The Economic Aspect of Mining — Tabular Statement showing the Condition of Mining in California — Table of the Products of Precious Metals in California from laiS to the close of 1881 — Tabular Statement of the Average Yield of Auriferous Gravel — Table of the Yield of Hydraulic Mining in California— Natural Denudation in Mining— Changes in Navigable Waters by Hydraulic Mining — Deposits of Detritus in Tributaries of Navigable Waters— General Features of the American River presented by Mr. Manson — Gravel Workable by Hydraulic Process — Remedial Measures in Mining — Table showing Estimates and Order of Structure upon Yuba River — Table relative to Structures on Bear River— Table relative to Structures on American River — The Gold Run Suit — Judge Temple's Deeision in the Gold Run Suit — Forms of Mining Companies and Officers — Form of Western Mining Company Charter— Form of Eastern Mining Company Charter — Form of Patent for Placer Claim — Form of Patent for Vein or Lode Claim— Rules for Forming a Mining District— Mode! of a Stock Certificate— Form of Transfer of Stock— Form of Mining Deed— Form of Mining Lease— Legal Decision relative to Mining Stock. Pages ... ... . ... . . 542 to 728 ^-C^ PART VIII. GLOSSARY of Minin"and Metallnrgieal Terms— The Properties of Metals— Tables of Reference for the Miner, Engineer and Mine Owner- Chronological Eras and Cycles for 1882— United States Measures and Weights — Geographical Measures and Distances — Miscellaneous Notes— Tide Table for the United States Coast— Tables showing the Weight of Flat and Round Rolled Iron— Tables relative to Weight and Volume of Cast Iron- Table of Weights of Wrought Iron, Steel, Copper and Brass Plates— Elementary Bodies, with their Symbols and Equivalents— Tables relative to Wire Rope, Ropes, Hawsers and Cables— Rule for obtaining the Weight of Solids in Cubic Inches — Table relative to Elastic Fluids— Table of Weights and Volumes of Various Substances in Ordinary Use- Wages Table— Table of Velocities and Discharges in Hydraulic Mining— Cost of Mining in Colorado and Nova Scotia— Explosive Force of Various Substances used for Fire Arms— Weights and Measures of Coal— Average Composition of Important Alloys— Composition of Bronze for Machinery — Atmospheric Air— Facts relative to Carbonic Acid Gas— Facts relative to Water— Metrical Abbreviations— Rule for Reckoning Quantity of Coal in Place- Rule for Preparation of Alloys of a Given Fineness— Short Methods of Calculation— Miners' Inches for Various Horse Powers— A Miner's Inch of Water— Mean relative Evaporating Power of Different Fuels— Calendar 1882-3. Pages . .... 729 to 768 »-g* PART IX. HE Physical Geology of the Grand Canyon District— The Plateau Province— De Motte Park— The Romance of Mining— The Madre D'Oro— The Divining Rod — The Whims of Fortune — Down in a Utah Mine — Social Life in the Mines and the Surrounding Influences — Society near the Gold Mines— Diet and Privation among Miners— The Wreck Wrought by Mining— Mining as a Promoter of Crime- Reported Numbers of Suicides in San Francisco— Curiosit.es of Metals— Color Relations of Metals— Communication from Mr. J. Van Cleve Phillips on Sex in Mineral Veins— Letter from Mr. J. Williams on Sex in Mineral Vein.s— The Forms of Minerals — Accidents in the Comsfock Mines and their Relation to Deep Mining— Deep Mine Workings— The Temperature of the Soil — The Physical Limits of Deep Mining — Deep Coal Mining in Wales — The Ventilation and Lighting of Underground Workings— Nature of Air — Air SoUars — The Water PART IX.-CONTINUED. Trompe— Natural Ventilation— Heat of Deep Mines— Lighting of Mine Workings— Mining Ventilation— Mechanical Ventilation and Drainage in Indiana Mines— Measuring the Air of Mines— Compressed Air in Mines— Electricity in Mining Work — Transmission ol Power by Electricity in Mining— Lighting Mines by Electricity— The Application of Electricity to the Prevention of Fire-Damp Explosion — Accidents in Mines — Fatal Accidents in Prussian Mines— Nature of Accidents in Prussian Mines — Injuries in Prussian Minos in 1881— Fatal Accidents and Deaths in English Coal Mines— Fires in Mines: Their Causes and the Means of Extinguishing them— Explosions of Fire-Damp— Spontaneous Combustion and Weather Waste of Coal — Means adopted for Preventing Mine Fires- Means adopted for Extinguisliing Mine Fires — Mining Accidents — Coal Mine Explosions and their Prevention — Mining Explosions and Mining Warnings— Mechanical Appliances for Mine Accidents— Prospecting as a Piofession— Locating a Mine— The Operation of a Mine— Extraction of Malleable Iron directly from the Ore— TheMiner and the Capitalist— The Purchase of Mines— Salted Ledges and Wildcat Mines— Gold Mining from the Investor's Point of View— The Problems of Labor. Pages ... . . . . . : 769 to 873 --*-£*-- I PART X. RON— Extraction of Iron from its Ores in the Form of Cast Iron— Conversion of Bar Iron into Steel by Cementation— Conversion of Blister Steel into Cast Steel— Production of Bessemer Steel— Copper— Roasting Copper to Expel Arsenic and Sulphur— Copper Smelting: Removing the Oxide of Iron as a Silicate— Calcination of Copper for the Conversion of Sulphuret of Iron into Oxide— Fusion of Copper Ore for the Removal of Iron— Blistered Copper: Roasting the Pine Metal- Refining Process lor Purifying Copper— Effect of the Presence of Foreign Matters upon the Quality of Copper— Metallurgy of the Precious or Noble Metals— Gold— Silver— Silver-Lead Alloy— Extraction of Silver from Copper Pyrites— Amalgamation Process for the Extraction of Silver— Platinum— Zinc— The Physical Properties of Metals- Tables of Breaking Strains of Wire— Welding of Metals— Spinning of Utensils— Washing Gold Alluvia 200 years ago— Hydraulic Mining in California— Table sliowing the Construction of Wrought Iron Pipe for Hydraulic Mining— Profile of Wrought Iron Pipe for GravelMines in California— Mechanical and Legal History of Hydraulic Nozzles— The Drainage of Mines— Modes of Blasting— Rock- Boring Machinery— Tools used in Rock-Drilling Machinery— Brain's Radical System in Rock-Drilling— Tools used in Breaking Rock- Dead Work in Shafts — Conveyance and Raising of Ore — Note on Hoefer's Method of Determining Faults in Mineral Veins — The Silver Mill — The Quicksilver Pump System — The Quicksilver Pressure System — Origin and Classification of Ore L'eposits — The Anthracite Coal Fields and their E.xhaustion- Output of Anthracite Coal from 18*20 to 1880 — United States Coal Product of 18G9 and 1878 — Available Tonnage of the Bituminous Coal of Pennsylvania— 'Winding Gear for Mines and Wire Rope — The Preservation of Mining Steel Wire Ropes — Valuation of Iron Mines in New Jersey — 'The Great Comstock Lode— The Sutro Tunnel — Nickel in Oregon. Pages . . ... ... . 874 to 954 -■^■■^ P PART XI. RODUCTION of the Pi'Goious Metals— Production of Deep Mines in California— Production of Gold in California— Production of Nevada Mines- Production of Comstock Mines — Taxed Product of Nevada Mines— Production of Preriou^ Metals in Utah — Base Bullion Product of Utah ymeJting Works— Wel]>, Fargo & Cn.'s Statement ol' the Miiural Product of t^lali for 1S79 and 1880— Production of Deep Mines in Arizona— Production of Placer Mines in Arizuua— Production of Deep Mines in Idaho — Production of Placer, Drift and River Mines in Jdaho— Production of Deep Mine?, in Oregon— Production of Gold, Init't and River Mines in Oregon— Production of Deep Mines in Washington Territory— Production of Hydraulic, .Placer, Drift and Kiver Mines in Wa'-hington Teiritory— Production of Deep Mines in Colorado— Production of Placer Mines in Coloiado— Bullion Product of Colorado— Production in (ulnrado of Smelting Woiks and Amalgamation .^lill.s— Production of Deep I\[ines in Dakota— Production of Hydraulic, Placei-, Drift and River Mines— Production of Deej) Mines in Montana— Crude Bullion Product of Montana— Production of Deep Mines in New Mexico— Production of Deep Mines in Wyoming — Production of Deep Mines in the Eastern States— Production of Hydraulic, Placer, River and Branch Mines in the Eastern States— Bullion Proauct of the United States for the year ending May 31, 1S80— Relative Production of the States and Territories- Average Product of Gold and Silver per Square Mile and Per Capita— Hank of the States and Territories in Production of tlie Precious Metals— Shipnnents of Bulhon, Dust and Amalgam through Wells, Fargo & Co.'s Exjiress— Bullion Shipment^? from Utah, tlirough the Pacific Express Company- Treasure Movement through San Francisco Custom House— Dr. Soetbeer's Estimate of tlie Production of the Precious Metal? of the United States to the close uf 1875— Hon. Mr. Bnrehard's Report of the Precious IMetals of the United States from 1848 to 1880— Statement of the Amount of Precious Metals Produced in .^lexicn and British Columbia— Annual Products of Load, Silver and Gold in the Slates and Territories uest of ihe 100th Meridian— Gold Production of the Southern States from 1804 to ISOii — Annual Bullion Pioduet of the VVoiid— Production of Iron Ore— List of Iron-producing States— production of Bituminous Cnai by States- Coal Production of the United States, by Coal Fields, for the year ending June 1, 1880- Ohio Cual Mines Cla->-itied— Indiana Coal Mines Classified— Production of Anthracite Coal- Production of Copper East of lonth Meridian— :\rnnufacture of Chemicals— Manufacture of Iron and Steel— Relative Rank in Iron and Sieel Production of the States— Geographical Distribution of Iron Products — Summary oflron and Steel Statistic: fnr 1880 -Statistics of the American Iron Trade in 1881— Imports of Iron and Steel from 1871 to 18S1— Domestic Exports of Iron and Steel from 1S71 to 1881— Production of Iron and Steel Ralls in 1881- Production of Bessemer Steel in 1881— Total Production of Iron and Steel in the United States from 1872 to 1881— Grand Summary of United States Statistics for 1881— Michigan Iron and Copper Statistics— Lead Production in Germany— Production of Mines of Great Britain in 18S1— Belgium Spelter— Coal Trade in the United States in 1881— Anthracite Coal Production of Pennsylvania— Prices, in Dollars, of Anthracite Coal from 1826 to 1882— Review of Blr. F. E. Saward on the Anthracite Coal Production- Business done by various Coal Companies— Coal Output of Different States— Government Estimates of Anthracite Coal for ISSl— Coal Statistics for the Dominion of Canada— Comparative Statement of the Salt Industry— Powder Dividends.in 1881— Gold and Silver Production in the United States— General Annual Summary of the Gold Yield— Gold Product and Coinage of Brazil, 1878-1881- Mr. Bnrehard's Report on the Production of Precious Metals in 1881— Mineral-Bearing Sections of Arizona —List of Quanz Mills in Arizona— Mineral-Bearing Sections of California— Silver Shipments from San Francisco to Hong-Kong, China- Production of Gold and Silver in (California, by Counties — Bullion Production in California— Bullion Production of Nevada— Assessments and Dividends upon the Comstock Mines from their Discovery to the close of 1881— Assessed Valuation of Nevada Mines, with Amount of Taxes Paid in 1881— Gross Yield of Nevada Mines— Gold and Silver Production in Oregon— Bullion Production in Wasliington Territory Gold and Silver Production of Alaska— Bullion Statistics of Idaho— Gold and Silver Production of Montana— Gold and Silver Yield of Utah— Wells, Fargo & Co.*s statement of the Mineral Product of Utah— Statistical Information relative to the Gold and Silver of Colorado— Product of Colorado Smelting Works— Gold and Silver Production of Dakota — Mines of the Appalachian Range Statistics of Imports and Exports of Gold and Silver, furnished by Mr. Burchard— The Mining Companies of the United States. ^ages 955 to 1154 / TAKE it for granted that every thoughtful, intelligent man would be glad, if he could, to be on the right side, believing that in 'the long run tlie right side will be the strong side. — f. A. Garfield. THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. PART I. WHAT MET ALB ARE— FACTS FOR MINE OWNERS— HISTORICAL NOTICES AND MEMORANDA. ,VERMAN writing more than thirty years ago in his still interesting volume on " Practical Mineralogy " lamented the existing ignorance concerning those minerals most useful in the arts. To-day, with the mineral interests of the American continent, hundreds of millions of dollars more in value than in 1851, his lament is still true. Mine owners, the great body of capi- talists who possess the earth's treasures know little more concerning their properties than is contained in the annual report of the mine superintendent or the monthly balance sheet from their ledger. In Part X. of The Mines, Minees AND Mining Interests op the United States, this deiiciency. is in a measure supplied in articles that give in simple language primary information upon the subject of mines and minerals. To these are added several articles of a historical nature, containing valuable memoranda con- cerning the early days of mining and metal finding in this country, with some further information about metals and metallurgy among the ancients. THE DISTRIBUTION OF MINERALS. THE useful minerals are not distributed over the earth irregularly ; there is a system in these distributions, the knowledge of which furnishes us with a rule by which we decide whether a particular kind of mineral may be expected to be found in a certain spot. The signs by which we judge whether a particular mineral is present at the place in question, are the general characteristics of the rock in that locality. The knowledge of the relation of particu- lar minerals to the general character of rocks constitutes the science of Geology ; and the knowledge of the character of minerals, that of Mineralogy. It is not our object to penetrate into the science of Geology ; but it will be useful to give a general idea of the positions in which minerals are found, and of their relations to each other. Granite. — The history of the formation of rocks has been divided into certain periods ; and it is generally agreed that granite is the oldest of the rocks. For this reason it is called primitive rock. Granite is a close, compact rock, composed of fragments of other rock or stony matter. These are so firmly cemented together, that the whole forms but one solid mass, without the slightest indication of pores or fissures. The matter of which granite is composed is often found to be in the form of small crystals, seldom or never assuming the shape of round grains. It is found of all shades and colors, froiii a bright white to deep black, often 1 in the same block. The crystals are, in many instances, not more than one-twelfth of an inch in diameter ; but they are also found of the size of one inch, and even larger. If a certain color of the composing crystals predominates, the granitic rock appears to oe of that color, either grey, red- dish, greenish, or bluish ; shades of yellow and crimson are also perceptible. Granite rock is particularly characterized by the absence of all stratification, or any .indication of par- allel joints ; the rock is uniformly compact in all directions. It is of great hardness and strength, and of everlasting du- rability. It takes a. fine polish; but, on account of its com- ponent matter scaling off in leaves, like mica, — which lat- ter is sometimes found to be one of its elements, — it does not take or retain a solid surface. Granite is not very extensively found in the United States. It occurs chiefly in the States of Maine, Massachusetts, New Hamjjshire, Connecticut, New York, along the Lakes, and sometimes in the Mississippi Valley. Granitic rock is fi-e- quently interspersed with more or less vertical crevices or veins, which are filled with matter foreign to the rock itself, and form lodes and veins of ores or other minerals. We may expect to find in these veins, ores of tin, iron, copper, lead, cobalt, silver, a few other metallic ores, and anthracite coal. We find also, in such veins, feldspar, kaolin, quartz, in beautiful crystals, plumbago, or black lead, garnets, heavy spar, calcareous spar, fluor-spar, and fragments of rock of various kinds. We cannot expect to find bituminous coal in granite ; nor anthracite coal, except as a curiosity. We do not find gold, platinum, iridium, rhodium, and similar met- als, nor sulphurous ores of tin, nickel, cobalt, or mercury ; nor sulphur and sulphurets in such quantities as to justify their extraction. Metamorphic Rock. — The rock of this formation, also called transition rock, is the second in age. To this class belong a great variety of minerals ; as gneiss, mica-slate, clay-slate, limestone, and other minerals, in rocks covering tracks of great extent and at a great depth. The rock of this class is characterized by a partial and sometimes by a decided stratification. It does not exactly belong either to the compact or the stratified variety. Metamorphic rock, which often assumes the appearance of granite, pudding- stone, or stratified rock, is particularly distinguished by its close grain and strength from the rocks of the secondary formation, and by its stratification from granite and volcanic rocks. Transition rock covers the greater part of the New England States, New York, western New Jersey, eastern Pennsylvania, Maryland to the AUeghanies, middle Virginia, parts of North Carolina, South Carolina, Georgia, Alabama, Missouri, Arkansas, and all the States west of the Mississippi. In this rock, which is the most extensive in the United States, we find, and may expect to find, gold, in Virginia, North and South Carolina, Georgia, Alabama, New Mexico, California, Utah, and Oregon. We also find silver in this rock in Vermont, Virginia, the Carolinas, Georgia, Arkan- sas, New Mexico, and California. Platinum and the plati- num metals are also found along with the gold. Lead is found in this rock in almost every State, particularly in Missouri and Arkansas. Iron also is "found everywhere in THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. this formation, and generally the best quality of iron ores. Besides these, there are found ores of zinc, antimony, ar- senic, nickel, cobalt, tin, manganese, and in fact almost every kind of ore. In Pennsylvania, Virginia, and North Carolina, heavy deposits of plumbago are met with ; and anthracite coal is almost exclusively found in this forma- tion. It is the home of metallic sulphurets. It generally forms good building material, if not too hard to be worked. The sandstones of this period are exceedingly well qualified for building purposes, of which an example may be seen in the brown Connecticut sandstone, so extensively used for ornamental architecture. We find roofing-slate, and exten- sive tracts of limestone, in the rock, of this period, in New York, New Jersey, Virginia, Ohio, Missouri, Illinois, and other States. The limestone is generally magnesian ; that is, it contains magnesia as well as lime. The mineral veins of this period run either parallel with the stratification, as the gold veins of the southern States do ; or traverse the strata in more or less inclined angles ; or form isolated ellip- tical masses or lodes, as the iron, zinc, and lead ores gene- rally do. This rock formation is the most productive in use- ful minerals ; and where a faint indication of something valuable is discovered, it is generally worth the trouble to follow and dig after it. Stratified Hock. — ^The rock of this period, also called secondary formation, or coal formation, is decidedly strati- fied. We easily follow the various layers of minerals, which are distinctly parallel to each other. The layers or seams are sometimes almost horizontal, as is the case in the west- ern coal basin. The inclination of the strata of the Pitts- burgh coal veins 'is almost imperceptible. We can follow the same stratum for hundreds of miles, without its disap- pearing below ground, or running over the tops of the hills. In other places the strata are more or less inclined ; the coal strata of Alleghany county, Maryland, form a canoe, sunk between two high ridges of mountains. In Illinois and Missouri we find the strata undulating, gently rising and falling. The rock of this period, is the coal-hearing rock par excellence. We find here the richest and most extensive layers of mineral coal, all of the bituminous kind, or soft coal. The great western coal field covers western Pennsyl- vania, parts of Ohio, Illinois, western Virginia, Kentucky, Tennessee, Alabama, Indiana, Missouri, and other States. The Maryland coal formation is about forty miles long, and eight miles wide ; the Pittsburgh field is over five hundred miles long, and from two hundred to three hundred miles wide. There are coal deposits of this kind in the transition rocks of eastern Virginia, North Carolina, California, Ore- gon, Nova Scotia, and Canada. In this formation we are to look chiefly for soft mineral coal, iron ore, limestone, and salt. If contains none of the precious metals, no lead, no copper, nor any metal except iron and manganese, the latter not available. There is no plumbago or anthracite, no heavy spar or fluor-spar. We can neither find nor expect to find anything useful but sandstone, (which, however, is an inferior building-stone,) fire-clay, limestone, iron ore, and salt in the form of brine, which is found from one hundred to one thousand feet below the surface. Coal is almost everywhere found where this kind of rock appears. Tertiary Formation.— Stratified rock of a later period is frequently called tertiary formation. In this rock we find plenty of shells, and fossil remains of animals and plants. This rock is not rich in minerals. It often contains a species of mineral coal not much valued, and sprinklings of iron ore of no consequence. The only mineral of importance in this series is green sand or marl, which is extensively de- posited in heavy beds all along the Atlantic coast, from New York to Florida. This marl, containing the elements for stimulating the growth of plants, is extensively used in New Jersey and Maryland, and to some extent in Virginia, for improving the land. This formation, extensive as it is, offers but little inducement to search for minerals ; and those which are found are generally of an inferior quality. It affords no building material of any consequence, and the small beds of shelly limestone contained in it are not of much importance. In many instances, a fine quality of potter's^ clay is found in it; but this is generally of such a composition as to be too fusible for strong and fine ware. It frequently affbrds fine sand for ordinary glass. Volcanic Bock. — The rocks belonging to this class are often found to be perfectly vitrified, and of a glassy appear- ance, as basalt and some kinds of lava. The first is found in columns, grouped together in isolated mountains, or im- bedded in other volcanic rocks. The latter appears in com- pact masses, and is often very porous. To this class belongs a remarkable rock, called trap-rock. This is generally very hard, tough, and crystalline in its fracture. We find it also soft and brittle. This rock is found all along the Atlantic coast, intruding from below in the form of both small and large dikes, imbedded in the transition rock. It is very ex- tensively found around the Lakes and in the Rocky Moun- tains. This rock is characterized by the presence of copper and heavy layers of iron ore. The native copper and silver of Lake Superior is imbedded in it ; and in New Jersey, Pennsylvania, and the southern States, we also find copper ores in or near the trap-rock. Iron ore is found imbedded in this rock in almost all the States of the Union. Of the volcanic rocks, this is the most valuable as a matrix of use- ful minerals. The other rocks of this class are of less im- portance. All the rocks of this formation are hard, and, when broken into small pieces, if not partially decomposed, emit a sound like crockery, when struck with a piece of wood, or against one another. This rock furnishes the very best material for macadamizing roads, and some of it forms the most durable building-stone ; but it is very difficult to work. Of useful minerals, we find in these rocks copper, gold, silver, iron, sulphur, alum-slate, arsenic, lead, pumice- stone, and other substances. Alluvium. — Alluvium is a term used to designate the most recent deposit of matter. It comprises deposits of gravel, sand, loam, and clay ; and frequently contains, or is entirely composed of, animal remains. It is found along the sea-coast, the lakes, rivers, and rivulets, and forms their banks and bottoms. Alluvium is generally loose ground or fragments of rock. Most of the valleys, swamps, and prairies are alluvial matter. We find the following useful minerals in these deposits of earthy matter : iron ore (bog ore only,) potters'-clay, fire-clay, gravel, brown coal, peat or turf, and some others. Minerals, particularly the metallic ores, are chiefly dis- tributed over and below the surface of the earth in layers or masses; in lodes, or large veins, running parallel with or traversing the general course of the stratification of the rock ; in nests or pockets ; in nodules, which are concre- tions or accumulations of minerals of small extent; and in small veins, which are either branches of heavy veins, or traversing larger veins, ramifying the rock in all directions. The transition rock is the domain of metalliferous deposits. Here we find more variety and abundance than in any other geological formation. In this rock the best qualities of ores are also found. The secondary rocks, or those which con- tain bituminous coal, do not furnish so great a variety of minerals as the transition rocks, and many kinds are not found at all in them. In the latter there is an absence of gold, silver, copper, antimony, and other substances. It furnishes chiefly stone-coal, iron, limestone, and often a little lead or zinc, but these latter only in a very limited quantity. Mineral substances, particularly those which are used for the production of metals, — the workable or useful ores, — are but few in number. They are generally oxides, that is, combinations of metal with oxygen ; ■ sulphurets, or metals combined with sulphur; and carbonates, or metallic oxides combined with carbonic acid. Combinations of metals with other substances than these, are rare. Minerals of the above description frequently form large bodies of pure ore by themselves, buried beneath the surface in the rock. In most cases, however, these ores are blended with foreign matter, as lumps or grains of quartz, lime, and other substances^ which are mechanically mixed or in chemical combination with it. In some instances, the main body of the layer or vein is rocky matter, and the ore imbedded in that sub- stance. The mineral deposits are often found in such heavy masses as to admit of their extraction without any admixture of rock ; in other cases, rock and mineral must be raised together, as they cannot be separated. In some instances, the veins are too small for the entrance of the miner, and are consequently of no practical value. Geographical Distribution.— The geographical dis- tribution of minerals is very distinctly marked in the United States. The ridge of the Alleghany Mountains THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. divides the surface of the country into trapsition rocks on the east side and secondary rocks on the west. In the first, or between the Atlantic and the Alleghanies, wefind chiefly the minerals and rocks belonging to the transition series ; and in the second, or between the Alleghanies and the Mis- sissippi river, we find chiefly the minerals belonging to the secondary rock. Both slopes of the Rocky Mountains are of a uniform character, and the minerals on each side are those belonging to the east slope of the Alleghanies. The extent of mineral veins is as different as the character of the minerals themselves. In the western coal fields, partic- ularly in that of Pittsburgh, we may trace the same vein of coal for hundreds of miles, as well as veins of iron ore and limestone; There are also small veins of coal and ores, of but a few miles in extent, in the same basin. The veins of gold ore in Virginia and North Carolina can be traced in a continuous belt for more than five hundred miles, running parallel with the Allegheny ridge. Immense beds of mag- netic iron ore are found in the State of New York ; also veins of peroxide of iron of uncommon magnitude in the Mississippi Valley. Layers of useful minerals are found in almost every State of the Union, in such abundance and ex- tent as to render the raising of them most easy. Origin of Minerals. — The origin of the minerals, and their form as veins or layers, may be considered as the result of infiltration from the surface, to which class many of the iron and copper ores belong ; or the deposits have been formed in the bottom of a sea, as those of the coal .measures ; or the minerals are injected from below, raised by the power of internal heat, to which class the gold and silver ores of Vir- ginia and North Carolina, and the native copper of Lake Superior, belong. The first class generally consists of wedges decreasing with the depth ; the second of spheroidal masses, and the third of wedges increasing with the depth. The first class of veins is the most deceptive, and cannot be de- pended upon ; the second may be measured by its appear- ance on the surface, or by sinking shafts into it ; the third class may be depended upon as improving with the depth. Masses and veins of minerals are not always found in a horizontal position. The stratification of the great western coal field is almost horizontal ; and as the mineral veins of this region are parallel to the stratification, these also are of course nearly horizontal. Except in the bituminous coal region, we find but few horizontal veins of minerals. The veins of Virginia and North Carolina run parallel with the stratification of the rock, and also with the layers of it ; but the layers are in many cases almost vertical, and generally inclined not less than 60°. The inclination or dip of a vein is measured from the horizontal plane ; if, therefore, a vein dips but 10^, it is nearly horizontal ; and if it dips 80°, it is almost vertical. The dip of a vein is not always the same in its various parts, particularly if the plane of the vein is not parallel to the plane of the stratification. Veins of minerals are frequently found to be disturbed in their regular course, either by other mineral veins or by dead rock. Such disturbances, called, faults, slips, or slides, appear in every kind of vein ; they are caused by matter which has penetrated the crevices of the rock after the main vein was formed. The mass of a vein is often found to divide itself into various small veins, which, at cer- tain distances or at greater depths, reunite. Such faults, whether consisting of mineral or dead veins, are often per- plexing to the practical workman ; but the scientific miner is never at a loss what to do. DESCRIPTION OF MINERALS. A DESCRIPTION of well known minerals is needful for a full appreciation of what is said about them - elsewhere in this volume. Doubtless, also, it will be appreciated by the reader who is unfamiliar with more than their names. Iron and Iron Ores. — Native iron is a mere curiosity, of no practical value. It is found in Connecticut. Brown hematite — brown oxide of iron ; brown ironstone; pipe ore ,' bog ore.^-This is found of almost all shades of color, and under the most varying forms. It is character- ized by its powder when rubbed, or its streak, which are always yellow. We find this ore of all shades of yellow, brown, and black. Its lustre varies from the dul- ness of loam to the resinous brilliancy of pitch. Its compact or solid varieties are generally granulated, but are frequently found of fibrous texture and of a silky lustre, the fibres being from a lively brown to jet-black. It is mostly opaque, but often transmits light through thin scales and at its corners, in which it appears to be blood-red. It sometimes appears in the form of hollow nodules, which are often of a black velvety appearance on the inner surface. This ore is so extensively distributed, and appears under so many different forms, that a descrip- tion of it would be very difficult. The most certain mode by which it may be distinguished is, to reduce it to a pow- der ; if this is yellow, the ore belongs to the variety under consideration. The scientific term for this ore is hydrated oxide of iron. Its chemical composition, if pure, is peroxide of iron, with from 13 to 18 per cent, of water. In its purest condition it never contains more than 60 per cent, of iron. This kind of ore is the most profusely distributed over the United States. It is found in heavy beds near and in the anthracite region of Pennsylvania, and in the valleys of the western coal formation, where it forms the outcrops of the veins of argillaceous carbonates of iron. It occurs in Massachusetts, Connecticut, Tennessee, Kentucky, Alabama and elsewhere, sometimes in veins thirty feet thick. The iron ores found in the bogs of New York, Michigan, Ohio, and Illinois, belong to this variety. It is found in almost every State of the Union, and is the most generally distri- buted of the iron ores. It is best qualified for pig-metal ; the impure varieties not being well adapted to the manufac- ture of bar iron. Red iron ore — red hematite ; iron-glance ; specular iron ore. The appearance of this ore varies from a dull brown- ish red like reddle, to the lustre and colour of polished st«el or plumbago. Its powder often feels greasy, like plumbago, but it is always red when rubbed upon white paper or on a white porcelain plate. Some kinds of this ore, like that of the Missouri iron mountain, are compact and pos- sess the colour and lustre of steel ; other ores of the same kind are found in crystals, in the form of fine leaves or cubes, and of the colour and lustre of black lead, as is the case in New York, New Jersey, Pennsyl- vania, Arkansas, and other States. A heavy body of this ore, of the red variety, has been found in Wisconsin and Michigan. Smaller veins are found in most of the States of the Union. The chemical composition of this ore is iron and oxygen ; and, if pure, it may contain about 70 per cent, of metallic iron. It is frequently adulterated with clay or siliceous matter, and is often found to con- tain but from 10 to 20 per cent, of iron. Some kinds of red clay ore, though of an intensely red colour, contain but 5 per cent, of metal. This ore is not attracted by the magnet. If not too largely mixed with foreign mat- ter, it forms one of the best and cheapest iron ores for the smelter. The quality of iron made of it is always found to be soft and strong. It is particularly qualified for the production of heavy wrought iron. Magnetic iron ore — loadstone; black oxide of iron. Large beds and veins of this ore are found in the United States, particularly on the west side of Lake Champlain, in Essex county, New York and in the States of New Jersey, Pennsylvania, and Ohio. It is also found in the New England States. This ore is generally bluish-black, and sometimes pitch-black. It is of a metallic lustre, and exceedingly hard. It is found in compact, solid masses, and also in crystalline grains, from a large size down to the form of fine black sand. The compact and the cry.stalline varieties are frequently found in the same vein. This ore is characterized by always forming a black powder when rubbed upon a white body. If it contains impurities, its powder is more or less grey. It is exceedingljr sensitive to the magnet, and is attracted by it. When it occurs in large pieces, it attracts iron, and imparts magnetism to it when rubbed over it. This ore is said to belong to the primitive rock formations ; but in the United States we find it chiefly in the metamorphic rocks of Pennsylvania, New Jersey, and New York. It forms the main body of the iron THE MINES, MINEKS AND MINING INTERESTS OF THE UNITED STATES. ore in Sweden. If pure, this ore is better qualified for mak- ing strong iron than any other, provided it be not spoiled in the smelting operation. In Jersey City, an excellent cast-steel is manufactured of the iron derived from this kind of ore, found in the western part of the State of New York. Spring-steel and file-steel are also extensively made of it in New Jersey. This is the richest of the iron ores. The compact ore of Lake Champlain, which is nearly pure, contains 70 per cent, of metallic iron in 100 parts of ore. There are varieties which contain but from 20 to 25 parts of metal ; these are conglomerates, in which the crystals of ore are imbedded in a cement of clay, silex, and often lime. Magnetic ore is frequently adulterated with foreign matter injurious to iron, as silex, copper, arsenic, titanium, and particularly sulphur ; the latter often in large visible (quantities, in the form of crystals of yellow pyrites. This is the case with most of the richest veins of magnetic ore in New Jersey and Pennsylvania. Carbonate of iron. — This species comprises two varieties. The first of these, termed the compact, or argillaceous ore, is chiefly found on the western side of the Alleghanies. The other variety is the sparry ore, found on the eastern slope of that mountain chain. The first is the most extensively dis- tributed in this country, and for that reason we shall speak of it first. The compact carbonate of iron — clay iron-stone ; argillaceous ore — is chiefly found in the western bituminous coal formation. It is there deposited in veins of more or less extent and thickness. Some of these veins are more than fifty miles in length and eight feet in thickness; others are so small as not to be workable. The general form in which this ore is found is that of a flattened spheroidal body from the size of a pea to a mass of sufiicient bulk to weigh half a ton. These balls form either a continuous vein, in which one is laid beside and above the other, and the spaces between them are filled with clay, or the balls are separated, sometimes many feet or yards, and imbedded in slate. We find this ore also in continuous veins, in a compact form, resembling limestone. All this kind of ore, when discovered near the surface, at the outcrop of the vein, is found to be decomposed, has lost its carbonic acid, and is converted into brown or yellow hematite (hydrated oxide). By following these veins or outcrops of veins, we always find the ore in the interior of the rock to be the compact carbonate. The finest qualities of this ore are found near Baltimore, which is not in the coal region. We also find it in the Frostburg coal region, in Maryland, and in almost all the western coal deposits. The color of this ore is sometimes white, but generally of a dirty gray, a yellowish-brown, or of a faint brick-red appearance. There are oxidized veins of this ore in the western coal-fields along the Alleghany and Ohio rivers, of fine quality, making a superior iron. Most of it adheres to the tongue like clay, and emits an odor like that of clay when breathed upon. All our bituminous coal formations contain this ore, which is not so generally the case in Europe. This carbonate of iron generally contains from 20 to 33 per cent, of metallic iron; seldom more than 36 per cent. Its composition is protoxide of iron, carbonic acid, clay, silex, lime, and often magnesia; and in most cases it contains manganese, which is often found in the centre of a decomposed ball, forming a black lump. The balls of this ore, when in the progress of decomposition, form shells of hydrated oxide of iron, which are dis- tinguished by difierent color, and may be separated in the same manner as the diflTerent coats of an onion. In the centre of such a ball, we often meet with an undecomposed core, where the ore is in its original state, presenting the appearance of limestone. Sparry ore — sparry carbonate; also called spathic ore. This is the second variety of the native carbonates of iron. In almost all instances where this ore occurs, it is adulte- rated with sulphur, and in some cases with copper, which detracts seriously from its practical value. The color of this ore is in most cases white, varying to yellowish-brown and dark brown. Its texture in the fresh fracture is always decidedly crystalline, and of a silky lustre. It is not at- tracted by the magnet — which is also the case with the com- pact variety before described ; but if either kind be slightly heated, it is attracted by the magnetic steel. This ore is frequently found to form the main mass of a vein in which other valuable ores are present; and in this respect it is a guide to detect ores which would not otherwise be found. In North Carolina, it forms the bulk of a vein of gold ore, where it is accompanied by quartz, iron and copper pyrites, and a large quantity of gold. It associates with all kinds of metallic ores, changing the character of a vein from one kind of ore to another. The foregoing enumeration consti- tutes the bulk of useful iron ores. There are some few fer- ruginous minerals, which are' used in the manufacture of iron ; but they do not constitute iron ores proper, and may be considered as fiuxes. Among these substances are ferru- ginous slate, shale, and clay-slate, which contains iron, red marl, and green marl. These minerals contain but from 5 to 10 per cent, of iron. Any mineral which does not con- tain at least 20 per cent, of iron, is not considered an iron ore. Iron pyrites — sulphuret of iron ; in some places simply called sulphur. This we do not consider as iron ore ; but it is a species of mineral of great value in some parts of the country. There are two difiierent kinds of iron pyrites : the one is yellow, of a brass or gold color ; the other is white, of a silvery lustre. The chemical composition of both is nearly alike. Each of them contains more than half its weight of sulphur ; the other part is metallic iron. This mineral is frequently confounded with more valuable sub- stances, by those who are not expert metallurgists, on account of its great lustre, bright color, and hardness. It is easily distinguished from any other mineral ; for the slightest heat drives ofl' sulphur, the sufibcating smell of which at once proves its character. This mineral is exceed- ingly hard : it strikes fire with steel. Sulphuret of iron is very extensively distributed all over the United States, and accompanies almost every description of mineral. It is found in all geological formations, in primitive rock as well as in alluvial gravel. In the coal regions it is distributed in small veins, leaves, or crystals, incorporated with the coal, and depreciating its value. Where the coal is slaty, and contains much sulphuret — or, as it is commonly called, sulphur — it is used for making copperas, or alum, provided the slate contains but little coal. Along the Ohio river, extensive use is made of the sulphurets in this way. In other parts of the United States, not much attention is paid to these minerals. Iron pyrites are of little value in them- selves; but, as a matrix of other metals, namely, as the bearers of gold and silver, they deserve more attention than they have hitherto received. All iron pyrites contain gold and often silver, from which rule only those of the coal formation are excepted. The extensive gold deposits of the Southern States constitute virtually a belt, or accumulation of veins, of iron pyrites. The gold had its seat originally in the pyrites, which, when decomposed, liberated the gold, and it appears in a metallic state. The pyrites are the mat- rix of the gold. The veins of gold ore in those regions are and have been, veins of pyrites, decomposed at the surface to a certain depth ; below that decomposition, the veins are essentially formed of pyrites, and at a greater depth, entirely so. The pyriteous slate of these regions contains gold in most cases, if the pyrites are perfectly decomposed. Iron pyrites and copper pyrites are not easily distinguished from each other. The first, however, is of a decidedly crystalline form, the latter not so ; the first is very hard, the latter does not strike fire with steel. The color of the iron pyrites varies from a pure silvery white or golden yellow to" red ; the copper pyrites are of all the colors of the rainbow. Copper. — Native copper is found in large quantities, in regular veins, in the Lake Superior region. The heavy masses of copper in these places are imbedded in volcanic rock, and small veins ramify it in all directions. It occurs in bodies of almost every size, from small grains to masses weighing ten tons and upwards. This native copper is fre- quently found to be mixed with silver in distinct fibres, the latter pot being alloyed with the copper. Native copper is found in almost every vein of copper ore ; it has been found in those of New Jersey, and also in those of Pennsylvania. Sulphuret of copper. — There are two kinds of ore of this variety; the one is called grey sulphuret of copper, and other copper pyrites; the latter generally contains iron in admixture. The gray sulphuret is a compact ore ; its sur- face is dull, and it is of the color of lead, or an iron-grey ; it also occurs of a faint red color, if taken near the surface of the ground. It melts easily, if a small splinter of it be THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. held in the flame of a candle. It may be cut with a hard and sharp knife. If the ore is pure, it contains 78 parts of copper and 18 parts of sulphur. It is always found in veins of copper ore, forming part of their mineral contents. The foregoing are the most generally distributed copper ores. There are others, such aa : — Bed oxide of copper, distinguished from oxide of iron by a lively red color, more brilliant than the latter. Black oxide of copper, which is velvet-black, often in- clined to blue or brown. Hydrosilicate of copper, or siliceous oxide of copper. — This is generally the green ore, found in most cases at the outcrop of veins of copper ore. It has a bright green color and resinous lustre; and when freshly broken, its fracture is like that of glass. Carbonate of copper, or malachite. — This is generally of a blue color ; but it is also found of all shades, from dark blue to light green. Specimens of this variety are found in every copper vein, particularly at the outcrop. Phosphate and chlorides of copper are also found. They are both green, and form no regular copper ore. There is a great variety of copper ores. They are of various shades of color, from a brilliant red to velvet-black ; of a beautiful green, and sky-blue. They are all distinguished from other ores by their bright color, and their power of impart- ing that color to other substances. There is scarcely any variety of copper ore which does not betray the presence of that metal by a green film, partcularly if it has been ex- posed to the influence of the atmosphere. Copper pyrites, if exposed to the air for a short time, exhibit a film of blue crystals of sulphate of copper. Nickel. — ^This metal is usually found associated with cobalt, with arsenic, with iron and copper, with sulphur and antimony, as an oxide, as a sulphuret of nickel and as a sulphuret and arseniate of nickel. It is always present in meteoric stones. It posseses a fine silver white color and lustre ; it is hard, but malleable both hot and cold, and it may be drawn into wire ^V of an inch thick and rolled into plates y^j of an inch thick; a small quantity of arsenic destroys its ductility. When pressed it has a specific gravity of 8.279 and when hammered of 8.66 or J'.82. It is susceptible of magnetism in a somewhat inferior degree to iron, but superior to cobalt. Its melting point is nearly as high as that of manganese. It is hot oxydized by contact with air but may be burned in oxygen gas. It is found on this continent only in Pennsylvania and Lower Canada. Lead. — Native lead is a mineral curiosity, of no practical value whatever. It is said to have been found in its metal- lic state ; but that is of little consequence, because it can have been discovered only in small quantities, and because it costs but little to smelt it from its ores. The most impor- tant ore of this class is Galena, or sulphuret of lead. This ore has the lustre and color of polished metallic lead. It is always grey, without a shade of any other color ; but its powder, when finely rubbed, is black. It is always found in a crystalline form, the crystals being cubes, often composed of square plates, and frequent- ly so small as only to be detected by the aid of a lens. In other instances, the cubes, or plates which form the cubes, are more than one inch square. Galena is composed of me- tallic lead and sulphur ; it contains, if pure, 86 per cent, of lead and 13 per cent, of sulphur. It is very heavy, and equal to metallic iron in specific gravity. It is indeed, the heaviest of all metallic ores. Galena is very extensively distributed over the United States. It is found almost every where, except in the bituminous coal region. The most extensive deposits are in the States of Missouri, Illinois, and Arkansas ; between the Blue Ridge and the Alleghanies, in Virginia; and in smaller quantities in all the States of the Union. Some varieties of galena contain silver to a large amount; but in that case the ore is generally mixed with other minerals. The ore of this description in the gold region is of a bluish tinge, often inclining to black, and contains an accumulation of small crystals, which may be distinctly recognized in it. It is a compound of the sulphu- rets of zinc, lead, iron, copper, tin, silver, and gold. The galena in this ore amounts to from five to ten per cent, of the bulk ; and each ton of lead smelted from it contains from 180 to 200 ounces of silver and gold, and frequently more than that. This may be considered a rich silver ore, and will pay a handsome profit. Any galena which yields 50 ounces to a ton of ore, is considered a silver ore. This amount of silver alone will pay for refining the lead. Carbonate of lead. — This is a lead ore of frequent occur- rence ; but it rarely forms a vein of itself. It accompanies other lead ores, in the form of soft white concretions, as a powder, or in crystals. The crystals of carbonate of lead are generally flat, and transparent like glass. When the crystals, or the earthy kinds of this ore, are kept in a room where stone-coal or coal-gas is burned, or where men or animals breathe, it gradually turns grey, and at last black ; forming black sulphuret of lead, by the absorption of sul- phuretted hydrogen. The clear crystals of this ore possess the double refracting power ; that is, they show two images of any object viewed through them. They are very soft, and easily scratched or broken. Phosphate of lead. — This variety is not so common as the foregoing, but occurs quite frequently in all lead districts. It is an indication of the presence of lead, for it is chiefly found at the outcrop of a vein. Its color is greenish ; and if inclined to yellow, it contains arsenic and phosphorus. We find it, like the carbonate, or native white lead, in the .^rm of a fine powder, in concretions and in crystals. There are, besides the above, quite a variety of minerals containing lead, but they are of little interest as ores. There are oxides, sulphates, chlorides, arseniates, &c., which are of little in- terest to the practical man. The lead ores appear of almost every color, from the brightest white in the sulphates, to the deepest black in the sulphurets. All these various com- positions of lead, if exposed to the air in a room, turn black, except the sulphate, which remains white. The color of these lead ores is generally not distinct, but is of a dirty, earthy character, or becomes so in the atmosphere. They are all, however, characterized by forming a fine powder when rubbed, which possesses the adhesive property in an eminent degree, and are in this respect superior to any other mineral. Finely powdered lead ore, particularly galena, is used for glazing earthenware. The galena found in lime- stone formations, or accompanied by lime, is generally poor in silver. The richest and most numerous beds of ore are found in and near limestone rocks. The lead ores of siliceous formations, particularly those found in slates, are generally rich in precious metal; and it may be said that the lead ores of the oldest rocks, as, for example, those from granite, are the richest. Gold. — Native gold. — California stands pre-eminent in the production of this precious metal. The gold in these regions is found in its native state, in small grains, in spangles, in crystals so small as to be almost invisible to the naked eye, and also in lumps of ten and twenty pounds weight. These grains of gold are often found to be imbedded in masses of quartz ; at other times they are mechanically enclosed by quartz ; but in most cases the grains are pure gold, alloyed with a little silver. The latter admixture diminishes the value of gold about 15 or 20 per cent. Gold- bearing rock is chiefly a talcose slate ; that is, a slate resem- bling soapstone, but which does not feel so greasy. This slate is red, and ferruginous at the surface. At a greater depth it is filled with small crystals of iron pyrites, which are decomposed near the surface, and appear as peroxide of iron, which colors the slate brown, and, in a few instances, yellow. This slate is of various grades of hardness, and is, in the East, a metamorphic rock, running in a regular belt, parallel with the Alleghany mountain chain. The width of this belt is, in its broadest part, from twenty to twenty-five miles, which is often contracted to two or three miles. Within this belt the various veins of gold-bearing slate are distributed. Those parts of the vein which are richest in gold are characterized by small veins of quartz, running parallel with the slate. Where this quartz is wanting, not much gold is to be expected. The direction of the veins is parallel to the general course of the rocky strata or forma- tion ; that is, from north-east to south-west ; and their inclination, which is also parallel to that of the strata, is from 45° to 90°. This belt of talcose slate extends farther north-east, through Maryland, Pennsylvania, and New Jersey ; but it is changed in its composition. It appears in this extension as mica-slate, and ceases to contain gold. Farther south-west than North Carolina, it changes into feldspar and its relative rocks. The gold in this south- western district is found imbedded in heavy veins of quartz, 6 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. which appear frequently in this rock, being parallel with its stratification. These veins of quartz are often twenty_ feet thick and upwards ; they are pyriteous, and contain iron, copper, and suiphurets of lead, which are found sometiines to be rich in precious metal. The gold-bearing belt, which can be traced in a southerly direction through South Caro- lina, Georgia, and Alabama, sinks beneath the Mississippi river, and rises again to the surface near the Rocky Moun- tains. The gold found in the slate of Virginia and North Carolina occurs in exceedingly small grains, often so fine as to be not only invisible to the naked eye, but undiscernible even by the assistance of a strong lens. This is the case even when the ores are worth three or four dollars per bushel. Some veins of the slate region contain coarse gold, in grains as large as the head of a pin, and even larger. These are generally found in veins of quartz, in which the pyrites are concentrated into larger masses. Where the pyrites are disseminated in fine crystals through the mass of the rock, the gold is found to be very fine. In the fresh pyrites the gold is invisible, even if, after separation, it appears to be coarse. By natural or artificial decomposition the gold becomes visible; the pyrites are converted into oxide of iron, and by the aid of a lens, the gold may be detected, imbedded in the oxide of iron. Another form in which native gold is found, is in quartz, in which it is imbedded. Solid white quartz, both in veins and in crystals, is found, in which the gold occurs in spangles, plates, grains, and also in perfectly developed crystals. Quartz of this description is met with in Virginia ; more perfect specimens occur in North Carolina, and still better in Georgia ; but the best quality is found in California. Gold never appears in solid veins ; it is always disseminated through the mass of the rock, in some places more dense than in others. There are localities in the gold region where every piece of rock, every handftil of soil, contains more or less of the precious metal. Gold is never found in secondary strata or the coal regions. We may look in vain for it on the western i lope of the AUeghanies ; it cannot be there. Its origin appears to be in primitive rock, or granite ; but it is most abundantly found in the trap-rooks, or those of igneous origin. TJie geological formation of Canada is of this character ; but that of the gold region of the Southern States is not. Greenstone-porphyry, syenite, and gneiss, appear to be the primary sources of gold. These are also found in dikes and veins in the gold regions. The imme- diate matrix of gold in these regions is evidently the pyrites, which, however, may be a secondary enclosure. The next deposit and source of gold may be found in the infiltrated veins. Gold enclosed in crystallized quartz is evi- dently derived from alluvial soil, which has been washed into the crevices of the rock, and afterwards covered with quartz in solution ; and to this result the heat of a volcanic region has no doubt greatly contributed. Silex is easily soluble in pure hot water, but is precipitated from it as soon as it comes in contact with any other matter, or when cooled. The crevices of the feldspathic rock of North Carolina are chiefly filled with crystalline quartz, which in many instances contains gold. This quartz is evidently the result of infil- tration ; and all the veins of this kind must be uncertain in their duration and extent. The veins injected from below are a third source of gold. To these belong the pyriteous veins, and, as far as their de- composition is concerned, the ferruginous veins. Wheth- er the gold in these veins is in a metallic form, and has been evaporated in that state ; or whether the gold was raised and condensed along with other metals and suiphur- ets, is a question of no importance. It may b& asserted as a fact, that all native suiphurets, particularly all the suiphur- ets of iron, contain gold. It does not follow from this that all pyrites contain sufiicient gold to pay for its extraction. As suiphurets cannot possibly penetrate any roek but from below, we may naturally conclude that the heaviest body of such kind of ore must necessarily lie deep in the earth. This conclusion is supported and confirmed hj practice ; for all pyriteous veins are invariably found to improve in qual- ity and quantity with the depth. Silver. — Native silver occurs in various forms ; and it is often difficult to decide by sight whether a mineral is pure, or contains silver in admixture. It is found in all mines where silver ores occur, in the regular form of crystals, but chiefly in irregular grains and formless aggregations. It appears in the native copper of Lake Superior, ramifying^ the copper in all directions, in the form of fine threads of pure silver. Silver has a great aflinity for sulphur, which soon blackens its bright surface. For this reason we find most of the native silver in black masses, imbedded in the silver ores, filling fissures in a vein, or appearing as a black vegetation in cavities or on the surface of a vein. Metalic silver is found in all mines where silver ores are found, or where the ores of another metal are impregnated with silver. Suiphurd of siZuer— silver glance. This is the most common of the silver ores. We find it in the form of crys- tals, hairs, and needles, or like wire twisted into nets ; in plates, and in shapeless masses. This ore is opaque, or of a dark-grey color. It is malleable, and easily cut with a knife like lead. It is not elastic, like metallic silver. The clean' cut looks like metallic lead, but is soon covered with a film of various colors. This ore, in its pure form, con- tains 87 per cent, of silver, and 13 per cent, of sulphur. It is easily smelted, and yields metallic silver with but little trouble. Sulphuret of silver, and all the silver ores, are found in rocks of all ages, except in the coal region ; and always accompany the ores of copper, lead, antimony, gold, arsenic, and others, along with quartz, calcspar, heavy spar, manganese, pyrites, and other minerals. It is a remarkable fact, that silver occurs more abundantly where mineral veins cross or meet each other, than in other places, or in the finer ramifications of a vein. ifoj-ra-siZuCT-— chloride of silver. This ore is not so gener- ally found as the above sulphuret, but it appears in almost every place where silver is found. It occurs chiefly at the outcrop of veins, along with native silver or sulphuret of silver. Chloride of silver is a horny substance, so soft as to be cut by the finger-nail. Its color is often grey, and it sometimes shows all the colors of mother-of-pearl. These colors darken, if the ore is exposed to light for some time. This ore is also found of a uniform green color. One variety of chloride of silver is called buttermilk ore. In this case it is mixed with foreign minerals, and with gold and copper. The greater portion of it, however, is clay. Antimonial silver. — This is the richest of the silver ores, but not so frequently found as others. It has not been ob- served in the old States of the Union. It is found in Mex- ico and Central America, and in New Mexico, California, Utah, and Montana. Antimonial silver is a crystallized ore, of a white or yellowish-blue color, hard, and very brittle. It resembles arsenical iron very much, but is easily distin- guished from that ore by its crystals being longer, and not quite so hard. The ore, when fresh from the mine, is white ; but it is soon tarnished by a yellow film, and gradually be- comes grey, blue, and at last dark -grey or black. This ore, when pure, contains 80 per cent, of silver and 20 per cent, of antimony. Antimonial sulphuret of silver — red silver ; rubyblende. This is a valuable silver ore. Its color embraces all the shades of red, and is sometimes of an iron-grey. It is rare- ly found of any other color. The lustre of this ore is re- markable, being metallic, and in many instances as brilliant as that of a diamond. It is found wherever other silver ores are found, and may be expected in the mineral veins of primitive, transition, and metamorphic rocks. It is accom- panied by or associated with antimonial and arsenical ores, lead, cobalt, nickel, copper and iron pyrites, along with quartz, lime, heavy spar, fluorspar, and other minerals. There are other varieties of silver ore, but their appear- ance is very rare. Platinum; Iridium; Osmium.; Rhodium; Palla- dium.. — These are called the platinum metals, because they always appear together or alloyed. Platinum has been found in the gold diggings of Virginia, North Carolina, Georgia, and California. These metals are as valuable as gold ; and some of them are sold at even higher prices than that metal. They are chiefly found wherever gold occurs, and mostly or exclusively in alluvial gravel and sand. Platinum appears in flattened grains, of a greyish or lead color, resembling tarnished steel. In its ordinary state, it is as heavy as gold ; and, if pure, even heavier. Mercury; Quicksilver. — Native Mercury is found in all mercury mines. It occurs in small drops, attached to the THE MINES, MINERS AND MIXING INTERESTS OF THE UNITED STATES. body of the ore, to the gangue, or dead minerals of the vein, and to the rock. The most important quicksilver ore is the Sulphur et of mercury — cinnabar. This mineral resembles, in color, oxide of iron, with which it is sometimes confound- ed. Its redness, however, is mingled with a yellowish hue, like that of minium, by which peculiarity it is distinguish- ed. It is also easily distinguished from other minerals by its volatile character. It evaporates entirely, when thrown on red-hot iron, leaving no residuum, and emitting a strong smell of sulphur. The powder of cinnabar, when rubbed on gold or copper, whitens these metals, as if plated with silver. Cinnabar is found in California in heavy masses. The ore is of a beautiful appearance, pure, and Compact. It contains 84 per cent, of metal, and 14 per cent, of sulphur. Bituminous sulphur el of mercury. — This is a variety of cin- nabar, of a more or less grey, brown, earth color and ap- pearance. It generally accompanies the pure qualities, and is mainly distinguished from them by its color. On heating this quicksilver ore, it emits a very disagreeable smell, and leaves a residue of earthy matter. There are other ores of mercury, but they are of little importance. They may all be distinguished by their entire volatility, and their capacity of coating gold white when rubbed upon it. The geological position of the quicksilver ores is in the older rocks of the secondary formation, or the later series of the transition rocks. We find it therefore in the New England Stated along the Lakes, and in the gold region of the Southern States, but in such small quantities that the mining of it cannot be. carried on to advantage. Quicksilver ores may also be found in an earlier series of rocks than the bitumi- nous coal ; but in that case there is some metamorphic or volcanic rock in its vicinity, which appears to have been the means of depositing it where it is found. These ores are very volatile, and anj^ volcanic eruptions will bring them from the interior of the earth, to condense on some conve- nient spot, colder than the place of their origin. Quicksil- ver ores are not always found in regular veins. We find these ores in grains, disseminated through the masses of rock, like gold, platinum, and other metals. One of the quicksilver ores of Spain is a black slate impregnated with metallic quicksilver. Zinc— Native zinc is never found ; it has so much affinity for other matter, particularly oxygen, that it cannot exist very long in its pure state. The following are the principal ores of this metal : Zinc-blende, or simply blende. — This is a sulphuret of zinc, and is composed of 68 per cent, of zinc, and 32 per cent, of sulphur. This ore is always found crystallized ; and in most cases the masses of it are mere accumulations of crystals. Its color is generally a bright or yellowish-brown ; but it is occasionally found to be black, red, green, or yel- low. It is transparent, or at least admits of the passage of light, if in thin splinters. The lustre of this ore is brilliant, and more decidedly adamantine than any other ore. It is found in heavy veins and masses in the gold region of the Southern States, where it forms the principal silver ore. It also contains a considerable amount of gold. It is here as- sociated with galena, iron and copper pyrites, tin, heavy spar, black manganese, and manganese-spar. The bulk of this ore is blende, which in most cases constitutes at least 50 per cent. Blende occurs chiefly in the rocks of the tran- sition series, and is abundantly found in the United States. The operation of smelting this ore, and extracting from it the gold, silver, and lead, is extremely troublesome. Red zinc ore. — Zinc ore is extensively deposited in New Jersey and Pennsylvania, and is used for the manufacture of brass. This ore is a compound of oxide of zinc, manga- nese, and oxide of iron. Its color is a brick-red, with a yel- lowish tinge, like cinnabar. Its texture is granular and massive. This ore, like the blende, belongs to the transi- tion series of rocks. Calamine -sWicaXe of zinc, is very widely distributed, and is found in heavy beds in eastern Pennsylvania. There are two kinds of this ore, the silicate and the carbonate : the latter series is that alluded to as found in Pennsylvania. This ore appears in kidney-shaped masses, and in concre- tions like iron pipe-ore, honey-combed. It is of a dirty yel- low or stone color. If pure, it consists of about one-half oxide of zinc ; the other half is composed of carbonic acid, silex, iron, water, and other admixtures. It is found in heavy veins, and may be looked for in all limestone rock, from the most recent to the oldest formations. Tin. — There are but two ores of tin known, which are of any practical use. One of these is tin-stone, or peroxide of tin ; the other is sulphuret of tin, or tin pyrites. No tin of any moment is manufactured in the United States at pre- sent; still, there are indications of the ore, and, at some future day, it may be found advantageous to smelt it. Tin-stone occurs chiefly ia granite, in heavy masses or lodes, mixed with conglomerates of various rocks. It is also found in alluvial gravel, as the result of the decompo- sition of the above rock, and is then called stream-tin. Tin- stone is of a variety of colors, white, grey, yellow, red, brown, and black. Its most striking feature is its weight. Its specific gravity is equal to that of galena, from which it is easily distinguished. This ore is very hard, of a brilliant lustre in the fresh fracture, and is frequently found in de- tached double crystals. By striking with this stone upon steel, fire can be produced. Till pyrites are not very abundant, and cannot be con- sidered an ore of tin ; their presence in the silver ores of the southern gold region is so limited, as to render the extraction of the metal unprofitable. This ore is of a grey or yellowish colour, heavy, crystallized, and of a metallic lustre. It is always found to be adulterated with foreign matter, as iron, copper, lead, and olher ores. Coal. — ^All mineral substances containing sufficient car- bon to supply their own fuel, and support combustion, may be called coal, mineral coal. There are vast beds of slate and limestone, containing a large amount of carbon, which cannot properly be clashed as coal, because they do not perpetuate combustion. ■ Charcoal. — Mineral charcoal is frequently found in bituminous coal, in the form of thin seams and plates ; but the quantity is so small as to render its separation from other coal impracticable. Anthracite — hard stone-coal, is, with the exception of charcoal, the purest mineral carbon of which we have any knowledge ; and it forms the bulk of the fuel used in the Atlantic cities. Anthracite coal forms lieavy veins and masses in the metamorphic rocks of the eastern slope of the Alleghenies, but is seldom found on the western side of that mountain chain. Hard coal is a very black, hard substance, of great lustre: it breaks in irregular fragments, and is not affected by the atmospheric air. The chemical composition of this coal is, almost entirely pure carbon, a little hydrogen, and a small percentage of ashes. When a sufficient quantity of this coal is ignited, it creates an intense heat ; but, in small quantities, it does not burn well, and requires a strong draft to support combustion in a small space. This coal is also more difficult to kindle than any other, requiring the use of wood, or wood -charcoal, to ignite it. This fuel is welladapt- ed to smelting operations, for which purpose it is extensive- ly employed. The geological position of anthracite coal is said to be in the transition rocks ; but, in this countrv, we cannot place it in that series. Bituminous coal — soft stone coal. This name is applied to a mineral coal, which has never been properly defined. A natural and well-marked distinction of this coal is, its property of coking ; that is, if exposed to a red heat, it blazes, swells, and finally bakes together, forming a spongy mass, called coke. All the coal which is black, and makes a black powder, but does not coke, is anthracite ; and all the coal which is soft, and makes a brown powder, but does not coke, is denominated brown coal. Bituminous coal is black, makes a black powder, has a bright, resinous lustre, and is liable to form slack when exposed to the air. It is distin- fuished from anthracite by possessing a more slaty structure, ome of this coal breaks into beautiful cubical pieces, of which the Pittsburg vein shows many fine samples. Most of this coal is inclined to break in that way, but the cubes are often very small, and form mere slack. Bituminous coal burns easily, with a bright, vivid flame, similar to pine wood. Anthracite usually burns without any flame ; but, sometimes, with a faint, blue, scarcely-visible flame. Bitu- minous coal is easily kindled, and, in small quantities, sup- ports combustion with facility. The chemical composition of this coal differs from anthracite, only in the larger amount of hydrogen it contains : this, in combination with carbon, forms bitumen, which can be extracted by distillation in 8 THE MINES, MINEKS AND MINING INTEEESTS OF THE UNITED STATES. iron retorts ; and from this circumstance is derived its name, " bituminous coal." In the Mississippi valley, that is, in the region where this river and its tributaries flow, the amount of bituminous coal buried beneath the surface of the earth is so large, that no parallel can be drawn between the amount of coal in that district, and what is contained in all the other parts of the world. The quality of the coal in this large basin is, as may be expected very different. " The Pittsburg vein," is, notwithstanding its local appellation, of vast extent. This vein may be traced to a distance of from one hundred to one hundred and fifty miles from Pittsburg, and furnishes at every point where it has been opened, the same kind of coal. The coal from the Pittsburg vein, of which the coal from the Youghio- geny river, a branch of the Monongahela, may be consider- ed the finest, is a beautiful jet-black coal, almost free from sulphur, of a high lustre, frequently displaying the colors of the rainbow. This coal breaks into cubes, of from two to six and eight inches. It is not very liable to form slack on being exposed to the air. This coal breaks into a beautiful, strong, and clear, coke, and may be consider- ed a fine coal for making gas. This vein does not furnish an equally-beautiful coal throughout its extent, still, it produces in every part a superior coal. Within one hundred miles of Pittsburg, along the Monongahela river, this vein produces superior coal ; below Pittsburg, on the Ohio river, and above Pittsburg on the Alleghany river this coal is not so good as at the first mentioned place. Pittsburg may be considered very near the centre of the large western coal field ; and here the coal, particularly that of the thick vein, is superior to any coal, no matter whence it comes. The same vein furnishes a fine coal along the borders of the coal field, where the vein is generally from ten to fourteen feet thick — near Pittsburg it is but seven feet. The geological position of this coal forms a particular era, a separate period in the formation of rocks. It is not found in the old rocks —in granite and its associates — nor do we find it in transi- tion or metamorphic rocks ; yet, in Virginia, a bituminous coal is found imbedded upon granite, and surrounded by the younger transition rocks. This coal cannot be consider- ed a true bituminous coal, but forms a link between this and the next following — brown coal. This Virginia coal burns with a vivid flame, and forms a sort of friable coke ; still, we cannot consider it as a true bituminous coal, of the secondary formation. Brown coal — lignite. This is a kind of coal more gene- rally distributed than known. This coal is found among or above the rocks of all ages. We find it resting on granite in Virginia, on the James river, imbedded in tertiary rocks along the Atlantic coast, in Michigan and Missouri, in Ore- gon, on the shores of the Pacific, and in California. We find this coal jet black, and also of a brown color; we find it as hard as anthracite, and so soft as to crumble into fine dust on being touched. It is never found in extensive layers, like the coal of the secondary strata, and the deposits most- ly form thin veins or elliptical masses. This coal is chara- terized by its making a brown powder, which may be more or less dark, but always shows its brown color. Some of this coal forms coke, but the coke is weak, friable, and, on account of its impurities, not qualified for smelting iron and other metals. The greater bulk of this coal does not coke at all. It always contains more impurities than coal of the older rocks, makes more ashes, and is very sulphurous, which causes operate in the formation of clickers in the fire- grates, causing trouble to the firemen. If brown coal is very impure, slaty, and does not contain sufficient carbon to constitute fuel, it can be used for the manufacture of alum, either by burning or roasting in large piles, and may be con- sidered the best material for that purpose. We may expect to find brown coal below the sand of the beach, as well as in the granitic and volcanic mountain regions. It is always accom()anied by fossil remains of plants and animals. Coal which is too brittle to bear transportation, and diminishes the draft of a fire by falling into dust, may be moulded like fire-bricks, dried, and then used as fuel. If there is any dif- ference between hard coal and soft coal, of equal purity, it is in favor of hard coal ; for, the less hydrogen fuel contains, the greater the amount of heat liberated from the same weight. There are, however, differences of a practical na- ture, which considerably modify this theoretical fact. A fire-grate or furnace of any kind, which burns soft coal to advantage, is found to have a contrary effect upon hard coal ; and the grate in which hard coal can be profitably consumed, will not answer so well for soft coal. Soft coal burns more rapidly, and distributes more heat in the same time, over the same space; but also consumes faster than hard coal would, under similar circumstances. The abso- lute amount of heat evolved, is greater in soft than in hard coal, but this heat cannot be used to so much advantage as thatprodu;ed from hard coal. — Compiled from " Practical Mineralogj/" by J. 8. Overman. MINING AND METALLURGY AMONG THE ANCIENTS. IN the time of Moses, at least six metals were known, since, in his direction for the purification of the spoils of the Midianites, he says : " Only the gold and the silver, the brass, the iron, the tin, and the lead, every thing that may abide the fire, ye shall make it pass through the fire and it shall be clean.* Thus showing that the metallurgic arts had at that early period attained considerable perfection, and that the metals were of frequent occurrence and con- stant employment. Of the various metallurgic processes practised in the early ages of the world, little can be at present known ; but it would appear likely, from some passages in the sacred writings, as well as from the some- what confused and obscure accounts of profane authors, that they differed but little from those which are employed at the present day. That silver was at a very early period purified by means of lead, the following passages would seem to indicate : "The house of Israel is to me become dross ; all they are brass, and tin, and iron, and lead in the midst of the fur- nace, they are even the dross of silver."t And again, " The bellows are burned, the lead is consumed of the fire, the founder melteth in vain."| We also read of silver being purified in a furnace of earth. Strabo quotes Polybius as speaking of a silver ore which, after being washed seven times, was melted with lead and became pure silver. That tin was not only well known, but also highly valued, at the time of the Trojan War, we learn from Homer, who calls it KaacriTepoc, and mentions it as forming part of the armour of Agamemnon,? and shield of Achilles,|| to make which, Vul- can is represented as throwing into the crucible, brass un- conquered naaahepoQ^ and honored gold and silver. Among the ancient Greeks and Romans, the workers of metal had attained a pitch of excellence, in some instances scarcely to be surpassed in the present day : but although many proofs of their skill have come down to us, in the form of coins, statues, and implements of war, yet their authors afford but scanty information relative to the methods em- ployed in their production. This may be accounted for by the fact, that those who have written on the subject could have been but imperfectly acquainted with it, the metals be- ing generally found and extracted in mountainous countries, at a great distance from the large and populous cities in which the authors may be supposed to have usually resided, and who were, consequently, dependent for their facts on those who might be unable to enlighten them very fully on the subject. It is therefore not to be wondered at, that our stock of information should be limited, or that the ancient authors should treat rather of the uses of the metals, and the formation of alloys, than of their extraction from the ores. The art of working the alloys of copper was cultivated in Rome at a very eariy period after the foundation of that city. King Numa, the immediate successor of Romulus, founded a fraternity of brass founders, from which it may be inferred that this trade was even then in a flourishing condition. At the date in which Pliny wrote his Natural History of the World, the Romans had acquired an exten- sive knowledge of the metals, and their uses ; as we find him, m his thirty-third and thirty-fourth Books, not only de- * Numbers xxxi. 22. § Iliad, 2. t Ezek. xxii. 18. II Iliad, 18. t Jer. vi. : THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 9 scribing gold, silver, brass, tin, iron, lead, antimony, mer- cury, and cadmia ; but he gives us also the proportions in which these various metals should be mixed, in order to form suitable alloys for casting, soldering, and brazing, and moreover describes, with a great degree of accuracy, the medicinal and other properties of some of their oxides and salts, as well as the method of their preparation and the lo- calities in which they were found. But his descriptions of the means used for the extraction of these metals from their ores, are not only imperfect, but also frequently obscure. This arises both from the abrupt transitions which continu- ally occur, and also from frequent allusions to methods and apparatus long since obsolete, and relative to which at the present time we have no means of acquiring knowledge. In speaking of gold, Pliny says, " In these parts of the world in which we live, gold mines are found, to say nothing of India, where the ants cast it up out of the ground, or that which the griffins gather in Scythia. The gold with us is procured in three ways ; among the sands of some great rivers, such as the Tagus in Spain, the Po in Italy, Hebrus in Thrace, Pactolus in Asia, and the Indian Ganges, all of which yield gold. Neither is there any gold finer or more perfect, from being thoroughly polished, by the rubbing and attrition which it meets with in the courses of streams of water. There is also another method of obtaining gold, viz. : by digging it out of pits which are sunk for that pur- pose, or else in the caverns and breaches which occur by the fell of mountains." He also goes on to say, that the gold obtained by cleaving and opening mountains needs no try- ing or refining, as it is naturally fine and pure. In speaking of the value of gold, the same author remarks : " The repu- tation which it has acquired is for the following reason, — that it alone, of all things, loses nothing in the fire, but withstands its action without change. Indeed the oftener it has been in the fire the more refined and purer it becomes. One method of testing the quality of gold is by the applica- tion of fire, of which it ought to take not only the color, but to a certain extent the radiance also. This kind is called Obryzum. This is another astonishing property of gold, that a fire made of light straw or chafi' will quickly melt it, whilst if it be thrown on the strongest fire of wood-charcoal, it will with difficulty yield to its intensity and melt. With respect to its purification, it should be melted with lead. The second property which causes gold to be so highly valued is, that it loses but little of its weight by use Sind at- trition, whilst silver, lead, and copper, leave metallic stains on bodies which they touch, and soil the skin of those who handle them. Neither is there any metal which can be beaten out broader by the hammer, or divided more easily into parcels, as every ounce of it may be reduced into more than seven hundred and fifty leaves, each one of which being four fingers square. The other minerals, after their extraction, require the fire for their conversion into metal ; but gold, of which we now treat, is gold as soon as it is found." Again, " Neither rust nor canker alters the weight of gold, or affects in any way its quality. Salt and vinegar, though such active solvents, do not make the least impres- sion on it." The above quotations go to show, that many of the prop- erties of gold were known at this period, and also that the methods of extracting it were similar to those employed at the present day. Pliny, however, gives us but little informa- tion relative to its metallurgic treatment, except that lead was employed in its purification, and also that when found in lumps it was of itself pure, and required no artificial re- fining. He also states, when speaking of the properties of mercury, " So penetrating is this liquor, that there is no ves- sel but it will eat and pass through. It supports everything which may be thrown into it, unless it be gold only, which sinks to the bottom. It is, besides, very useful for the pur- pose of refining gold; to effect which object, that metal mixed with cinders is placed in an earthen pot, and shaken with mercury, which rejects all the impurities mixed with it, but in return takes hold of the gold itself. To expel it from the gold, the mixture is poured on skins, which, on being pressed, allow the mercury to pass through them in drops, whilst the gold remains in all ite purity." The above process differs little from those in general use, for the pur- poses of amalgamation, at the present day ; but in this case Pliny's description is imperfect, inasmuch as the solid amal- gam remaining on the skins would require the separation of the combined mercury before the gold could exist in the pure and fine .state described. No mention is moreover made, of any means of separating gold fi-om silver, or in fact of their ever being found associated, except in an alloy called electrum, said to be found in veins, and of which an artificial kind was made by mixing one part of silver and four parts of gold, and which appears to have been anciently in great request, since Homer describes the palace of King Menelaus as glittering with gold, electrum, silver, and ivory. This alloy, though sometimes made by the direct mixture of the two metals, was, doubtless, in most instancesj a natural production, as many gold ores contain a portion of silver, and the ancients being ignorant of the method of separating them, and without any knowledge of the stronger acids,* might have been in the habit of occasionally adding a cer- tain quantity of silver to specimens of gold which already contained a proportion of that metal, thereby converting them into electrum. That silver was formerly, as at the present day, chiefly ex- tracted from the ores of lead, we are distinctly informed by the author of the " Historia Naturalis," who adds, that those ores of silver which do not contain lead, or an ore of lead, cannot be successfully worked without the addition of either one or the other. Tin and lead he seems to regard as only two varieties of the same metal, as he describes them under the title of white lead, and black, and states that the white lead called in Latin Plumbum candidum, and by the Greeks Cassiteros, was much more valuable, and commanded a higher price than the black variety. His description of the Plumbum candidum, and the state in which it was found, leaves no doubt "that this much valued metal was tin, it being represented as occurring among sand, in the dried- up beds of rivers, and as only known from the other sub- stances with which it was found associated, by its dark color and great weight.f There is likewise found in the gold mines a kind of lead-ore which they call Elutia (stream tin). The water which is let into the mines washes, and carries down with it, certain little black stones, streaked and marked with white, and as heavy as the gold itself. It is gathered with it, and they remain together in the baskets in which the gold is collected. These are not separated from it until after melting in the furnace, when the fusion transforms them into white lead." Again : " You cannot solder together two pieces of black lead without white lead, neither can this be united to the other without the aid of oil." He also says of this metal : " Neither out of the white lead can any silver be extracted ; whereas out of the bl ack this is commonly done." In speaking of common lead, the same author says : It is much used for conduit pipes and for being hammered into thin plates," and then goes on to describe the mines of France, Spain and Britain, which he states, when quite worked out and exhausted, become as productive as ever, and even * Nitric acid is first mentioned by Heber, who lived in the eighth century. He describes it under the name of " dissolving water," and prepared it by distilling in a retort one pound of sulphate of iron of Cyprus, half a pound of saltpetre, and a quarter of a pound of alum of Jameni. This process, although not economical, would certainly produce nitric acid, and to this when obtained he added sal-ammoniac, in order to give it the property of dissolving gold. Raymond Lully, who lived in the early part of the thirteenth cen- tury, employed the same process, except that he omitted the alum. Basil Valentine, who was horn about the year 1400^ describes a method of obtaining " Spirits of Nitre," by distilling nitrate of pot- ash with powered porcelain or clay, with which the potash entering into combination the same result is obtained as by the former method. Basil Valentine is also the first who describes oil of vit- riol, which he prepared by distilling sulphate of iron according to the method at present practised at Nordhausen in Saxony. t " It is generally considered that the Greeks obtained their tin by means of the PhoBnicians from the Scilly Islands or Cornwall, but there is no direct proof of this ; and it appears probable, from the Sanskrit derivation of the Greek word (kassiteros, from kas- tira), that the Greeks originally obtained their tin from India. The Islands Cassiterides, however, the position of which was unknown to Herodotus (iii. 115), are supposed to be the Scilly Islands, or the peninsula of Cornwall, though their position is not exactly de- fined by Straho (iii. 175). Still there can be little doubt that the Cassiterides, to which the Phcenicians from Gades (Cadiz) went for tin, and the Eomans afterwards traded for the same commodity, were on the south-western angle of Great Britain." — Gen. Cyc. art. " Hindustan." 10 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. more so, if allowed to remain a short time without being worked ; for which he accounts, by supposing the metal to be produced by the air, which has then free access into the mine. With regard to the state in which Plumbum nigrum occurs, we are informed : " Biack lead has a double origin ; for it is either produced in a vein of its own without any other metal ; or otherwise it is mingled with silver in the same mine, being mixed together in one stone of ore, and they are only separated by melting and refining in a furnace. The first liquor that flows from the furnace is tin {Stannum), and the second silver. That part which remains behind is galena, the third element of the vein, which being again melted, after two parts of it are deducted, yields black lead." The above passage is obscure : tin, lead and silver, are not frequently found in the same stone, and were they thus to occur, the tin certainly would be the first to flow out of the furnace. That cupellation has long been employed for the extrac- tion of silver from lead may be inferred from the works of Agricola, who, in his " De Ee Metallica," describes and gives drawings of the furnaces used in his time for that purpose, and which exactly in every respect correspond with the old German cupel. The Greeks and Eomans have left no treatises relative to mining or metallurgy ; but it is scarcely reasonable to suppose, that had the method of refining lead by crystallization been known to them, it should either have been lost or fallen into disuse, as its advantages are too obvious not to have been evident to the rudest operators. Another argument against the opinion of Pliny having referred to this method, is the fact thaf rich lead, and not pure silver as described by him, is obtained by the crystallizing process, and if this method were ever known, it must evidently have fallen into disuse before the time of Agricola, who makes no mention of any knowledge on the subject, but gives the old German furnace as that ordinarily employed for the extraction of silver, and which, from the circumstance of its having remained un- changed in every respect since the days of Agricola, may be supposed to have existed in the same form long prior to that time: and to have been probably not only used by the Greeks and Eomans, but possibly even at a much earlier date. Of all the metals employed by the ancients for the manu- facture of objects of luxury, as well as for those adapted to the everyday usages of life, copper and its alloys were the most common; as by far the greater portion of the coins, tools and implements of war, which are occasionally brought to light, are composed of some modification of either bronze or braas; and consequently, the making of these alloys, and their adaptation to the various wants of mankind, must have formed a very important branch of the manufactures among the Greeks and Eomans. Accord- ingly the author of the "Natural History of the World," after describing the properties of this metal, and stating the localities in which that of the best quality was found, gives the composition and proportions employed in various alloys then common in Eome, and informs us to what uses they were severally applied. He also states that copper was first found in the Island of Cyprus, from whence two distinct kinds were exported :• one called Curonarium, which, when reduced into thin leaves and colored with the gall of an ox, had a golden color, and was employed for making coronets and tinsel ornaments for actors, from which circumstance it derived its appellation. Another variety, which was named Begulaire, is not particularly described, except that, like the former, it would stand hammering, and might be thus made to take any required form. The brass (copper) of the next best quality came from Campania, where it was the custom to adcl eight parts of lead to every 100 pounds of copper. It is also mentioned, that in France it was usual to melt copper among red-hot stones, for the purpose of obtaining a steady heat, as a quick fire was found to blacken the metal and render it brittle. He moreover informs us that the pro- cess was completed in one operation, but states that the quality would be improved by more frequent melting: Moreover, it may not be amiss to state also, that all kinds of brass melt best in the coldest weather. For statues and tables, brass is worked in the following manner: First the ore, or stone as it come3 out of the mine, is melted, and as soon as this is done, they add to it a third part of scrap brass, consisting of broken pieces of vessels that have been used ; for it is time and use alone that bring brass to perfec- tion, it is the rubbing which conquers the natural harshness of the metal. They then mix twelve pounds and a half of tin to every hundred pound weight of the aforesaid melted ore. The softest alloy is called Formall, in which are incor- porated a tenth of black lead, and one-twentieth part of argentine lead ; it is this mixture which best takes the color called grecanic. The last alloy is that which is called Ollaria, or pot-brass, as it takes its name from the vessels for which it is mostly employed, and this is made by tempering every hundred pounds weight of brass with three or four pounds weight of argentine lead or tin." The alloys above described are merely modifications of bell-metal or bronze; but it is not improbable that the ancients were acquainted with zinc-brass long before this period. Aristotle tells us that the Mosynseci, a people who inhabited a country not far from the Euxine Sea, were said to make copper of an exceedingly fine color, not by the addition of tin, but by mixing and cementing it with an earth found in that country. We are also informed by Strabo, that in the neighborhood of Andera, a city of Phiy- gia, a remarkable -kind of stone was met with, which being calcined became iron, and on being fluxed with a certain kind of earth, yielded drops of silvery -looking metal, which, mixed with copper, formed an alloy called Aurichalcum. Sextus Pompeius Festus, who abridged a work of Verrius Flaccus, a writer of considerable note in the time of Augus- tus, mentions cadmia, which he defines as an earth thrown upon copper, in order to convert it into aurichalcum. On this subject Pliny affords us but little information, merely stating where cadmia was found, and naming some of its medicinal properties; but he seems to have regarded it rather as an earth which gave a yellow color to copper, than as the ore of a distinct metal, zinc being in no instance mentioned by him, although he speaks of a kind of brass which Avas manufactured in the Island of Cyprus from copper and cadmia. That metallic zinc, however, was known to the ancients, there is no evidence to prove, since the metal mentioned by Strabo as given out in drops from a certain stone when heated, could scarcely have been zinc, which would have been volatilized if treated in the way described, and we may therefore suppose, that if the stone referred to by him was an ore of zinc, it might also have contained some other metal, such as lead, with which it is often found asso- ciated, and which would produce the appearance in question. Ambrose, Bishop of Milan, describes the transformation of copper into aurichalcum as being eflfected by means of a drug, and not by the addition of another metal ; from which we mayinferhewasunacquaintedwith the metallic nature of the material employed, although from his calling it a drug, •he was i)erhaps aware of its medicinal properties. A similar descrijjtion of the manufacture of brass is given by Prima- sius, Bishop of Andrumetum, in Africa, in the sixth century, and by Isidorus, Bishop of Seville, in the seventh. Agricola, who wrote in the sixteenth century, was also ignorant that cadmia contained zinc, of which we have no authentic ac- count until we find it mentioned by Paracelsus; and from which it is evident, that although the manufacture of zinc- brass is of great antiquity, the extraction of the metal itself is comparatively a modern discovery. Iron, the last of the six metals known to the ancients, was not, in the earliest times, very extensively employed, as the primitive heroes are described as being armed with weapons of brass. Plutarch informs us that when Cimon, the son of Miltiades, conveyed the bones of Theseus from the Island of Scyros to Athens, he found interred with him a bronze sword and spear-head of the same metal. Although generally used, however, brass was not universally emploved for the manufacture of arms, as the celebrated robber, "Periphetes, slain by Theseus, was named Korunetes [KapiniiTi]^) from using an iron club. In the days of Herodotus iron must have already come into general use ; since, when his inter- preter reads to him an inscription on one of the Egyptian Pyramids relative to the amount of money expended on radishes, onions, and garlic for the workmen employed in Its construction, he makes the reflection, that if this were true, how much more must have been paid for iron tools and bread ! It would again seem almost incredible that these stupendous struc'tures could have been erected without the aid of steel, both for quarrying and shaping the stone, as THE MINES, MINERS AND MINING IISTERESTS OF THE UNITED STATES. 11 well as for cutting the hieroglyphics so common in the earliest specimens of Egyptian architecture. If, then, we allow that iron tools were employed in building these monu- ments, we must suppose this metal to have been in common use during the reign of the shepherd kings who conquered Egypt and occupied the throne of the Pharaohs during some part of the interval which elapsed between the birth of Abraham and the captivity of Joseph. In speaking of iron, Pliny says: "After copper, comes iron, both the mostuseful and most fatal instrument of life. With iron man delves the earth, plants trees, prunes his orchards, trims his vines, cutting off the older branches, and thereby throwing more vigor into the grapes ; by its aid man builds houses, cuts stone, and prepares a thousand other implements ; but by it war, atrocity, and villainy are effected andrendered common." He also describes iron as occurring in almost every part of the known world, but particularly in the Island of Elba, where the color of the earth indicated the presence of the ore. We are, moreover, informed that the ores of iron should be treated like those of copper, in order to extract the metal, and that it was a disputed point in Cappadocia whether the principle of iron was aqueous or earthy in its nature, as the water of a certain river of that country, wlien thrown on the earth, produced iron precisely similar to that obtained from a fiirnace. He then goes on to say that there are two distinct kinds of forges, as some produce steel {nucleus ferri), which is best adapted for cutting-instruments ; whilst others shape it into instruments of common use, such as hammers and anvils; but that seasoning is the most important and delicate part of the operation. "It is a remarkable fact that, in the treatment of this mineral, the metal in melting is at first as liquid as the most limpid water, but becomes spongy in getting cold." * Analyses of Ancient Arms and Cutting Instru- ments. — From the extracts already quoted, it will be seen that tke information which has come down to us relative to the metallurgy of the early ages, is both vague, and, to some extent, uncertain ; as those who describe the materials and methods employed have themselves acquired their in- formation from others, and were, therefore, more subject to commit errors than if practically acquainted with the sub- jects of which they treated. This circumstance induced Mr. J. Arthur Phillips to believe that a careful analytical examination of such productions of the early metallurgists as have been discovered in different localities would not be without interest, and he, therefore, undertook the fol- lowing series of analyses. From the advantage afforded for ascertaining dates, most of the analyses were execu- ted on coins, care being first taken to well establish their authenticity. Some Celts and sword-blades were also- ex- amined. The analyses are placed consecutively, according to' the supposed dates of the specimens examined. It would be impossible to determine the dates of these relics of former times with the same accuracy with which we may ascertain the ages of coins; and we shall there- fore merely give the weight and dimensions of the va- rious specimens which have been examined, and endeavor to adduce such evidence as may show their great antiquity, without attempting to specify the precise dates at which they were employed. The ancient authors who have writ- ten on this subject, all agree that brass was used for the manufacture of arms before the discovery of iron. Lucre- tius says : "Anna antiqua manus, ungues, dentesque fuerunt, Et lapides, et item silvarum fragmina rami, Et flammse, atque ignes, jostquam sunt oognita primum Posterius ferri vis est serisque reperta Sed prius serfs erat quam ferri cognitus usus." Hesiod also informs us that, " In remote ages, the earth wa3 worked by brass, because iron had not been discovered." The Etrurians were acquainted with the use of copper, and appear to have used it for the purposes of agriculture at a very early period, as, when the boundaries of their city were marked out, it was done with a plowshare of bronze. Nu- * Iron in Pliny's time was doubtless made by the direct or Catalan process, and the spongy appearance above described must have arisen, not from its cooEng, as he seems to suppose, but from com- bustion of the combined carbon, and the consequent conversion of the compound into malleable iron. merous other authorities might, if necessary, be quoted in support of the above statements ; but the opening of divers Scandinavian tumuli, of very remote antiquity, in Denmark, fully establishes the accuracy of these accounts. From these barrows have been collected specimens of swords, dag- gers, knives, and implements of industry, since preserved and arranged in the Museum of Copenhagen, and among them are instruments of flint, resembling in their shapes, our wedges, axes, chisels, hammers, and knives ; which we may infer, from their rude workmanship, as well as from the materials of which they are formed, to have been the first description of edge-tools used by mankind for the several purposes for which they were adapted. Specimens of swords, daggers, and knives were also found, of which the blades are made of gold, whilst the cutting edges only are of iron. Some of these objects are composed principally of copper, with edges of iron ; and in the whole of them, the profuse application of copper and gold, in comparison with the par- simony evident in the expenditure of iron, seems to prove that at that early, though unknown period, both gold and copper were more plentiful and less highly valued than iron, among the now-forgotten people who manufactured these implements. Although we have the best evidence for be- lieving that copper and bronze were employed for the pur- pose of making cutting instruments before the discovery of iron, it would be more difficult to ascertain at what date and among what nation this metal first came into general use. That it was known at a very early period we learn from various passages in the Books of Moses ; and that it was used in the days of Job (about b. c. 1400) for the manufac- ture of arms, is evident from the following passage : " He shall flee from the iron weapon and the bow of steel shall strike him through." It is nevertheless probable that bronze might have been in common use long after the discovery of the harder metal, as the preparation of iron must have been a very tedious and expensive operation, to a people having but a scanty knowledge of the metallurgic arts, and we ac- cordingly find a kind of compromise between its known utility and high commercial value in the case above-quoted, in which the cutting edge alone is made of steel. At the present day, a valuable discovery made in any part of the world speedily becomes known and appreciated throughout its whole extent, but at the remote time in which iron was first reduced from its ore, so little communication existed between the various nations, that a process well known and highly valued by the inhabitants of one country, might be quite unheard of in another ; and, consequently, the uses of this metal may for a long time have been limited to a few districts, where accident, or the smelting of some other min- eral, had first revealed its presence. In the earliest ages of recorded history, when the world was divided into numerous petty states and principalities, the constant feuds, which were the principal occupation of mankind, would certainly cause a demand for arms and weapons of defence. Such a state of things must, however, operate most unfavorably on the cultivation of the arts ; and it is not reasonable to sup- pose that a conquering army on entering a foreign territory would have leisure to acquire the arts of the conquered na- tion, and, consequently, although they might find the arms of their enemies superior to their own, they would still be ignorant of the means by which they were manufactured ; and thus the secret would remain for a long period in the possession of its first discoverers. At what precise epoch weapons of iron came into general use among the Romans, we have not suflicient information to decide, but in the time of Augustus, iron mines were worked to a considerable ex- tent in the Noric Alps, and from them iron of the first qua- lity was obtained. This was used for making the best wea- pons, and hence " Noricus ensis," was as much synonymous for a good sword, as a Toledo or Andrea Ferrara blade in more modem times. In this sense it is used by Horace, Book I. Ode xvi., v. 9. At the time in which Pliny wrote his " Historia Naturalis," iron was almost universally em- ployed, not only for the blades of swords, but also for the manufacture of the different cutting instruments used for the purposes of daily life, as he both describes the metal and fhe means of forging it, and also refers to the difficulty of tempering steel in order to give it the requisite degree of hardness. From these considerations, it is evident that the various weapons of bronze must be of great antiquity, since 32 THE MINES, MINERS AND MINING INTERESTS .OF THE UNITED STATES. iron was in common use prior to the Christian era, and we have therefore placed the analysis of these instruments in a part of the series which corresponds to that period, notwith- standing that in all probability some of them may belong to a much earlier date. plied by a quantity of silver, varying from 0.76 to nearly 8 per cent., and which may perhaps have been intentionally added for the purpose of increasing the value of the metal. In speaking of these coins, Pinkerton remarks : " It may be proper to observe, before leaving this part of my subject, TABLE, SHOWINO THE MEAN COMPOSITIONS OP THE SPECIMENS EXAMINED. Date. 'Copper. Tin, Load. Iron. Zinc. Silver, Sulph. Nickel. Cobalt, B.C. A. d; ^g "500 69.69 7.16 21.82 .47 . trace trace .57 500 62.04 7.66 29.32 .18 — — trace .19 .23 Quadrans ... . 500 — 72.22 7.17 19.56 .40 — — trace .20 .28 Hiero I. . . .• 470 — 94.15 5.49 — .32 — — — — — Alexander the Great. . ... 335 — 86.77 12.99 — — — — .06 — —7 Philippus III 323 — 90.27 9.43 — ■ — ■ — — — — Philipus IV 200 , 85.15 11.12 2.85 .42 — ■ — ■ trace — — ? , 88.34 9.95 .63 .26 — — • — trace trace Egyptian, Ptolemy IX. . 70 — 84.21 15.64 . — trace ■ — — trace — trace Pompey, First Brass . . 63 — 74.17 8.47 16.15 .29 — — ■ — — — Coin of the Atilia Family. . ... 45 — 68.69 4.86 25.43 .11 — — — trace trace Julius and Augustus. ... .... 42 — 79.13 8.00 12.81 trace — — trace — — Augustus and Agrippa Large Brass of the t3assia Family 30 78.45 12.96 8.62 trace — — trace — • — 20 — 82.26 — — .35 17.31 — trace — — Sword-blade — 1 — 89.69 9.58 — .33 — — trace — — Broken sword-blade — 85.62 10.02 — .44 — — — — — Frasjment of a sword-blade . . ... 91.79 8.17 — , trace — — trace — — Broken spear-head. . . — — 99.71 — — — — — .28 — ■ — Celt.. — — . 90.63 7.43 1.28 trace — — trace — — Celt ' 90.18 9.81 — trace — — — — — ■ Celt , 89.33 9.19 — .33 — ■ — . .24 — — Celt 83.61 10.79 3.20 .58 — — — trace ,34 Lar^e Brass of Nero. . . GO 81.07 1.05 — — 17.81 — . — . — — Titus 79 83.04 — — .50 15.84 — — — — Hadrian . . . 120 85.67 1.14 1.73 .74 10.85 — — — — Faustina, Jun 165 79.14 4.97 9.18 .23 6.27 — — — — Greek Imperial Samosata. — 212 70.91 6,75 21.96 trace — — — — — Victorinus.Sen. (No. 1.) 262 95.37 .99 trace trace — 1.60 — — — Victorinua, Sen. (No. 2.) 262 97.13 .10 trace 1.01 — 1,76 — — — Tetrius, Sen. (No. 1.) — 267 98.50 .37 trace .46 ■ — .76 — — — Tetriua, Sen. (No. 2.) — 268 9H.00 ,51 — .05 — 1.15 — — — Claudius Gothicus, (No. 1.) . — |268 8i.eo 7.41 8.11 — — 1.86 — — — — 84.70 3.01 2.67 .31 trace 7.93 — — — Tacitus, (No. 1.) — ■ 275 86.08 3.63 4.87 — — 4.42 — — Tacitus, (No, 2.) . — 91.46 — — 2.31 — 6.92 — ■ — — Probus, (No. 1.) Probus, (No. 2.) — ■ 275 90.68 2.00 2.33 .61 1.39 2.24 — — — — 94.65 .45 .44 .80 3.22 — — — In addition to the foregoing analyses, the following esti- mations of silver were made by direct cupellation : — Coin. Legend. Weight of coin. Percentage amount of grs. silver. Aurelian . . . Eestitnti orbis. . . 67.2 2.90 " .... Fortuna-redux 50.5 2.96 Severina ... Providentia Deoram. 5i.5 4.37 *' .... Concordia militum. . . 64.0 5.80 Taoitus Libertas Aug. . . . 61.4 4.00 VictoriDUs, Sen. Pax Aug: ... 38.0 2.20 " " Providentia Ai g: . , 35.7 1.10 Tetrius, Jun. PietasAug; 31-5 .38 " *' " " . ... 44.11 .41 Quintillus. Fides militum. 52.4 2.32 " " " . . . 33.8 2.25 Marius. . . 43.7 6.15 It will be seen from the foregoing analyses that the metals entering into the composition of the brass of the earliest ages were copper, tin and lead, although the latter seldom occurs in any considerable quantity, except in the oldest specimens, and in many even of these, particularly in the early Macedonian coins, it is entirely wanting. The iron, cobalt and nickel, together with traces of sulphur, which sometimes occur, are evidently too small in quantity to have been intentionally added to the mixture, and consequently their presence must be rather ascribed to the localities from which the ancients drew their supply of ore, and the im- perfect methods employed for their reduction, than to any design on the part of the artists. The cutting instruments which have been examined are uniformly composed of cop- per and tin, with the occasional admixture of a small quan- tity of lead, which was probably added for the purpose of communicating a certain degree of toughness to the alloy, and it is also remarkable that the proportion of tin to that of copper, both in the celts and sword-blades, is very nearly as one to ten. Zinc iirst makes its appearance a short time' previous to the Christian era, and is continued in all the subsecjuent coins, although occasionally associated with lead and tin, until it almost entirely disappears in the small brass of the period of the Thirty Tyrants, when its place is sup- that the metal used in the Parts of the Assarion, or in the small brass coins, is, as may be supposed, very little attended to by the ancients. In those of the first emperors, yellow brass is sometimes employed, but it is always of a refuse or bad kind ; as in the Semis of Nero, for instance, Genio Av- GVSTI. But copper is the general metal used in parts of the As, from the earliest times down to the latest ; and if some- times brass be employed, it is never such as appears in the Sestertii and Dupondiarii, which is very fine and beautiful ; but only the refuse. Yellow brass of the right sort seems to have totally ceased in the Roman coinage, with the Ses- tertius, under Gallienus ; though a few small coins of very bad rnetal, of that hue, appear so late as Julian II." On referring to the table of analyses, we shall, however, perceive, that although the results obtained seem to confirm the as- sertions made relative to yellow brass, in the above quota- tion,_ yet that in no one instance has a coin been found to consist of copper alone ; and the only case in which this metal proved to be unalloyed, was in a spear-head found in Ireland. The largest proportion of lead occurs in the an- cient Eoman As, and its parts, in which it was probably employed for the purpose of rendering the alloy of which they consist easily fusible ; for these coins being originally cast, and not stamped like other money, a metal melting at a low temperature would materially facilitate this opera- tion. The later coins, containing a large proportion of tin seem to have been struck while the metal was still warm, as it wcmld be impossible to obtain such sharp impressions' as they usually bear, by the force of any blow applied on a metal so very hard and brittle, at ordinary temperatures. With respect to the furnaces employed by the ancients, little information can be obtained, aa these arts were formerly either held as secrets by a few individuals, who made a mystery of their operations, or they were too much despised by ancient authors to afford them a subject for their writings ; and we are consequently more indebted for our scantv know- ledge of ancient metallurgy to the vestiges of primitive toundnes, which have occasionally been brought to light in various parts of the world, than to any accounts which may have been transmitted to us from. those remote times. The first method of smelting ores, doubtless consisted in placing THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 13 the mineral in heaps, together with several successive layers, of wood, which being kindled, first roasted, and then re- duced a portion of the material with which it was mixed. In Macedonia, where lead mines were worked in the time of Phillip, the father of Alexander, large heaps of slag are found so far ab(jve the level of the rivers of the country, that the furnaces in which they were produced must have been worked either by bellows moved by human labor, or by the force of the prevailing winds alone. We are also told that the Peruvians were in the habit of melting their ores by the simple application of fire, or, when they were of a very refractory nature, by means of furnaces so constructed on high ground as to yield a draught without the aid of bellows, a machine with which they were totally unac- quainted. The boles of Derbyshire, many of which, from the pigs of Roman lead found in their vicinity, may be pre- sumed to be of great antiquitity, were worked in a nearly similar manner, and continued to be thus carried on during several centuries, as this method of smelting was, accord- ing to Childrey, not quite extinct in the seventeenth century, who, in speaking of the Peak, says : " The lead-stones in the Peak lie but just within the ground, next to the upper crust of the earth. They melt the lead on the top of the hills that lie open to the west wind ; making their fires to melt it as soon as the west wind begins to blow, which wind, by long experience, they find to hold longest of all others. But, for what reason I know not, since I should think lead were the easiest of all metals to melt, they make their fires extraordinary great." Discoveries made by various travellers in Russia, during the last century, throw considerable light on the subject of mining and metallurgy as anciently practiced in that part of the world. The remains of numerous mines have been traced by Gmelin, Lepechin and Pallas, on the southern and eastern borders of the Ural Mountains ; and in them were found hammers and chisels of copper, as well as various instruments of the same metal, of which the uses are at present unknown. From the absence of any remains of masonry in the neighborhood, these excavations are inferred to have been made by a nomadic people, probably the Scyth- ians; and from no iron tools having been found in any of them, we may conclude that these operations were carried on before the conquest of Siberia by the Tartars, who effected the subjugation of that part of Asia, about 150 years before our era. Sledges made of large stones, to which handles had been attached, were also discovered, together with boars' fangs, with which the gold appears to have been collected, and leathern bags or pockets in which it was preserved. With such imperfect tools, the progress made must neces- sarily have been exceedingly slow, and in one instance, after reaching a band of rock, and penetrating it for a short distance, the miners seem to have lost patience and aban- doned the works. The pits or shafts are well made, about seven feet in diameter, and of a circular form, some of them being twenty fathoms in depth. The passages are also well executed, but so low and narrow, that they could only have been excavated with the greatest difficulty to the workmen. The ores, when extracted, were carried to the nearest rivulet for the purpose of being crushed and washed, which opera- tions were probably dispensed with in the richer varieties, which were sometimes melted in the mines themselves ; metallic copper, together with slag, and the tools employed in melting and refining, having been found in some of them. Lumps of copper, containing no traces of gold, have also been discovered, although the copper ores of the district are found associated with that metal, and it is therefore evident that the ancient people who worked these mines were ac- quainted with a method of refining gold. The smelting was effected in small furnaces made of red bricks, and of which Gmelin found nearly a thousand in the eastern parts of Siberia. The -height and breadth of these were about two feet, and the width three. They were also furnished with holes in two of their opposite sides, the one for the intro- duction of bellows, and the other for the escape of the metal and slags. In the neighborhood of the furnaces were found large quantities of broken pottery, together with numerous heaps of scorise, which indicate that operations to a very considerable extent have at some period^ been carried on in that locality. Gmelin likewise found in the same district, the remains of various furnaces which had been employed for the extraction of silver, and remarked that the lead with which it was associated had been thrown away in the scoriae, whilst the whole of the silver was care- fully extracted. By what means this was effected, in this particular case, is of course now impossible to say, although it is highly probable that cupellation in some form was re- sorted to. Diodorus (iii. 14) informs us, that gold was puri- fied by being melted and heated in earthen pots, together with an alloy of tin and lead, to which salt and barley-bran were added, and that the fire was kept up during five suc- cessive days. Another ancient author states, that gold was melted by a gentle filre, with the addition of salt, nitre, and alum, and that the same process was employed for refining silver. It is, ho^yever, difficult to understand what action these substances, with the exception of the nitre, could have on the purification of silver and gold, and we may therefore conclude, that the action of the air was, after all, the chief means of oxidation employed.* In Britain, silver mines were worked before the invasion of the island by the Romans, and gold must also have been well known to the inhabitants before the arrival of Caesar, since coins of that metal were in circulation among them. Coesar and Strabo both state that the Britons obtained their copper from foreign countries, and we may hence infer that the art of refining this metal was either unknown or little cultivated by our forefathers at that remote period. Iron is described by Caesar as being so rare, that pieces of it were sometimes used as a medium of exchange, and almost as highly valued as gold ; but a century afterwards it had become very common, as in Strabo's time it was an article of exportation. Tin was anciently the most celebrated product of Britain, and appears even at that time to have been ex- tracted in considerable abundance, since it was the desire of obtaining possession of these mines, and becoming thereby independent of the Phoenician monopoly, which first induced the Romans to visit the island. Before the conquest of their country, the ancient Britons extracted this metal from its ores by methods which they had themselves discovered, and which were probably improved on [by their conquerors. The smelting process would seem to have been very simply conducted. The broken ore was placed in a hole in the ground, the sides of which were lined with pieces of wood ; these, on being ignited, reduced the metal, which was separated from the slags by being run off through a narrow channel into an outer receptacle. Many of these rude fur- naces have been found in various parts of Cornwall and elsewhere, in which not only charcoal and slags have been discovered, but also portions of the reduced metal, which in many instances had, from long exposure to oxidising influ- ences, again become partially converted into tin ore. This very rude method must, in some cases, have been attended witifi considerable success, as the slags resulting from it often prove on examination to contain but a small amount of metal. From these and many other relics which have been met with in diffwent parts of the world, we may infer that, although the arts of extracting minerals and working the metals were carried on formerly on a much smaller scale than at the present day, the operations of the early metal- lurgists were tolerably successful, and that, in spite of the rude apparatus which they employed, the results obtained by them were generally of a satisfactory nature. That a great degree of attention was, at a very early period, be- stowed on the manufacture of alloys destined for particular purposes, is proved by the uniform composition of the several cutting instruments examined ; although it is evident that but little care was taken to obtain a correct standard for the early brass money, as many pieces of nearly the same date, and of similar value, differ materially in the amounts of the metals of which they consist. One of the oldest mines in Europe, producing copper in comparatively modern times, is thatof Rammelsberg, nearGoslar, in Lower Saxony, the records of which have been traced back to the tenth century. The celebrated Swedish mine of Fahlun, com- menced in the twelfth century, first entered into competition with Rammelsberg, and yielded large quantities of copper ores. The mines of Thuringia were opened at the com- mencement of the thirteenth century, and, together with others of less note situated in different parts of Germany *The nitre of the ancients was probably carbonate of soda. 14 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. and Sweden, supplied during the succeeding three hundred years the wants of a great portion of the civilized world. In the thirteenth century Cumberland is known to have pro- duced copper ; since it appears, from records still preserved, that at Newlands, near Keswick, rich veins of this ore were worked in the year 1250. It is also further evident, from a charter granted by Edward IV., A. D. 1470, to the town of Keswick, that it was, at that period, the seat of extensive copper works. In Camden's time these works were re- opened, but afterwards " destroyed, and the miners killed in the civil wars." In the reigns of Henry VIII. and Edward VI. several Acts of Parliament were passed prohibiting the exportation of copper, brass, latten, bell-metal, gun-metal, &c., &c., under penalty of forfeiting double the value of the metal exported. The reasons assigned being, " lest there should not be left metal enough in the kingdom for making guns and other engines of war, nor for household utensils." Copper was also produced in considerable abundance at Ecton Hill, in Staffordshire, previous to its discovery in Cornwall, since Dr. Pot, who wrote in 1686, speaks of the copper mines having been wrought long previous to that date. The Pary's mine, in Anglesea, is believed to have been first opened by the Romans, and became exceedingly productive about the year 1773, and, during the twelve years from that date to 1785, produced such large quantities of copper as to reduce in a very considerable degree the price of that metal throughout Europe. Subsequently to this date, the produce of the Anglesea mines began rapidly to decline, and in 1799 the Pary's Mountain had become almost exhausted, and the price of copper was again raised to £128 per ton. A work entitled "A Just and True Remonstrance of His Majesties Mines-Royall to his Majestie," published in 1641, aifords a good idea of the state of lead mining in this country at that time. This little volume consists of a series of letters, or rather memorials, addressed to the King (Charles I.), the Prince of Wales (afterwards Charles II.), and to the Privy Council, by Mr. Bushell and others interested in the " Mines- Royall " of Cardiganshire, praying for the extension of the lease, the employment of convicts in the mines, and the liberty of cutting peat and turf for the purpose of smelting the ores raised. When speaking of the reasons which in- duced him to undertake these mines, Mr. Bushell says : — " That which first wrought in me a desire to try and fathom those mines, was a sensible discourse delivered me by a Portugall, in presence of Sir Francis Godolphin, (by whose death I lost the hope of a most knowing partner), who had been for many years imployed under the King of Spaine in his West Indian Mines, purporting that if his Master were Soveraine Lord of those Brittish hils, as is your Majestie, he would not doubt but to make them a second Indies, and affirming with deepe protestations, that the greatest riches in those mountaines lay in their lowest levels, which I finde to be true by laborious experiment, in those five mountaines ; for by this way of working, and driving through the depth of rocks, we are not only freed from the danger and deluge of waters, but also have discovered an increase of rich veines in quantity and qualitie, some containing twentie pound, some fifteene, some tenne, and some six in silver, in the tunne of lead upon the great test, *hich are answerable to most of the mines of the King of Spaine, the Eraperour of Germany, and the Duke of Saxony; moreover we find that by mixing and smelting these severall veines together, the one proves a good additament to the other, and becomes thereby a meanes to advance the Mines-Royall, and in them the good of your kingdome and subjects." He subsequently goes on to say : — "And as I am bound to give to Ccesar that which is Caesar's, I must further humbly acknowledge your Majesties large addition to your former royall favours in granting mee (the meanest of your creatures) liberty to give your Majesties impression to such silver as the mole-like miners cast out of the earth, for their speedier payment, for they are the men who make the rocks their resting-place, and expect no other reward or benefit for their sweaty browes then what they gaine from out of the darke cavernes of the earth by harralesse and importunate labor." In the memorial praying the employment of convicts in mines, Mr. Bushell enumerates several precedents, both in England and foreign countries, of such persons being con- demx.ed to labor for the public good, and " especially for tlie enlargement of his (the King of Spain's) Indian mines of gold, silver, quicksilver, and the like." On the use of peat and peat-charcoal for the purpose of smelting, Mr. Bushell makes the following observations : — " For furthering and facilitating of which worke I caused a meeting of Smelters, Refiners, and Monyers, to consult and try whether fuel of turfe would separate the oare, extract the silver, and reduce litharge, as well as the vast expence of whole forests of woods formerly consumed for that purpose ; and upon an exact triall made thereof, by altering the earthy substance turfe into charkie cyndars, v.'e found by infallible experience, that your Majesties Turffaries will furnish your Mines-Royall with fuel to all future ages." The following is given as " The declaration of learned Lawyers what a Mine-Royall is, according to former presidents," and is signed by Sir Ralph Whitfield, "His Majesties Sergeant-at-Law," and about thirty other lawyers of the day : — "Although the gold or silver contained in the base mettall of a mine, in the lands of a subject be of lesse valew then the baser mettall, yet if the gold or silver doe countervaile the charge of the refining, or be of more worth than the base mettall spent in refining it, this is a Mine-Royall, and as well the base met- tall, as the gold and silver in it, belong by prerogative to the Crowne." Sir John Pettus, who published his " Fodinse Regales'' in 1670, remarks, while treating of the mines of Cardiganshire : " The chief mines which produce silver now in working (though not effectually) are those at Coomsumblock, and the Darien Hills, Cogincan, Tallabont, Coomustwith, Tre- dole, Thruscott, and Rossevawre, which were the old Roman works, near to which are conveniently placed the smelting and refining mills, which therefore are called the silver mills, all of which are in the township of Skibery Coed in the parish of Llanny Hangell Genne Glyme, and in the county of Cardigan, alias Shire Abertivy." These five great works were wrought for many years with the joint-stock of the first incorporators, under the conduct of themselves ; but afterwards Sir Hugh Middleton undertook those in Cardiganshire, paying £400 per annum rent to the society, and he cleared monthly the sum of £2000, and had he not diverted his gains to the making of the new river from Ware to London, certainly he would have been master of a mass of wealth ; but great wits and purses seldom know how to give bounds to their designs, and, by undertaking too many things, fail in all. And we may further give credit to the beneficialness of those mines, when, as Mr. Thomas Bushell, by his knowledge and ingenuity to work them to the best advantage, did find business enough there for a mint, and with the product thereof made provision for the clothing of the late King's whole army." In speaking of the tin mines of Cornwall,- Camden makes the following observations : "After the comming in of the Normans, the Earles of Corn- wal gathered great riches out of these mines, and especially Richard, brother to King Henrie the Third : and no mar- veil, sith that in those dales Europe had tinne from no oth- er place ; for the incursions of the Mores had stopped up the tinne mines of Spaine, and as for the tinne veines of Germanic, which are in Misnia and Bohemia, they were not as yet knowen, and those verily not discovered before the yeere after Christ's nativitie 1240. For then (as a writer of that age recordeth) was fiiive mettall found in Germanic, hy a certain Cornishman driven out of his native soile, to the great losse and hindrance of Richard, Earle of Cornwal. This Richard began to make ordinances for these tin works', and afterward Edmund his sonne granted a charter and cer- tain liberties, and withall prescribed certaine lawes concern- ing the saine, which he ratified or strengthened under his scale, and imposed a tribute or rent upon tinne to be an- swered unto the Earls. " These liberties, priviledges, and lawes. King Edward the Third did afterward confirme and augment. The whole commonwealth of those tinners and workmen, as it were one bodie, hee divided into four quar- ters which of the places they call Foy-more, Blackmore, Tre- warnaile, and Pat with. Over them all he ordained a war- den called Lord Warden of the Sfannicrs, of Statinum, that 18, Tinne; who giveth judgement as well according to equi- tie and conscience as law, and appointed to every quarter their stewards, who once every iij. weeks (every one in his severall quarter) minister justice in causes personall between Tinner and Tinner, and between Tinner and Forrainer^ ex- THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 15 cept in causes of land, life, or member, — From whom there lieth an appeals to the Lord Warden, from him to the Duke, from the Duke to the King. In matters of moment, there are by the Warden generall parliaments or severall assem- blies summoned, whereunto jurats are sent out of every Stannarie, whose constitutions do bind them. As for those who deale with tinne, they are of foure sorts : the owners of the soile, the adventurers, the merchants, or regraters, and the laborers, called the i^a?iiard« (of their spade) who,poore men, are pitifully out-eaten by usurious contracts." In the reign of King John, the production of tin in the county of Cornwall was so small that the farms of that mineral yield- ed no more than 100 marks per annum, according to which valuation the Bishop of Exeter received, in lieu of his tenth part, the sum of £6 l&s. 4d., while those in Devonshire at the same period amounted to £100 per annum. Although tin mining appears to have been extensively carried on from the earliest period of our history, it is nevertheless evident, from the following account given by Carew of the method of dressing tin ore in the reign of Queen Elizabeth, that but few refinements had been introduced into this branch of industry at that time : " As much almost dooth it exceede credite, that the tynne, for and in so small qiiantitie digged vp with so much toyle, and passing afterwards thorow the managing of so many hands, ere it come to sale, should be any way able to acquite the cost ; for being once brought aboue ground in the stone, it is first broken in peeces with hammers, and then carryed, either in waynes or on horses backs, to a stamping-mill, where three, and in some places sixe, great logges of timber, bounde at the ends with ^ron, and lifted vp and downe by a wheele driven with the water, doe break it smaller. The stream, after it hath forsaken the mill, is made to fall by certaine degrees, one somwhat dis- tant from another, vpon each of which, at every discent, lyeth a green turfe, three or four foot square, and one foot thicke. On this the tynner layeth a certayne portion of the sandie tynne, and with his shuell softly tosseth the same to and fro, that through thus stirring the water which runneth over it, may wash away the light earth from the tynne, which, of a heauier substance, lyeth fast on the turfe. Hau- ing so cleansed one portion, he setteth the same aside, and begihneth with another, vntil his labor take end with his taske. After it is thus washed, they put the remnant into a wooden dish, broad, flat, and round, being about two foote ouer, and having two handles fastened at the sides, by which they softly shogge the same to and fro in the water between their legges, as they sit ouer it, untill whatsoever of the earthie substance that was left be flitted away. Some of later time, with a sleighter inuention and lighter labor, doe cause certayne boyes to stir it vp and down with their feete, which worketh the same effect : the residue, after this often cleansing, they calle black tynne. But sithence I gathered sticks to the building of this poor nest, Sir Fran- cis Godolphin entertained a Duch mynerall-man, and tak- ing light from his experience, but building thereon farre more profitable conclusions of his owne inuention, hath practised a more saving way in these matters, and, besides, made tynne with good profit of that refuse which tynners rejected as nothing worth." In the year 1693, in consequence of a fall in the price of tin, the tinners of the counties of Cornwall and Devon pub- lished a proposal for the redress of their grievances, and the raising of the price of that metal. This document, after setting forth the various means by which the object is tobe attained, concludes with the following appeal to the king and nation : — "Henry the Eighth of this great nation. Began the famous Reformation, His daughter. Queen Elizabeth, Finisht the second ere her death ; And now the Xing is almost rife To out the third out to the life, And raise the nation to that stature For which it was out out by nature. And 'twas the nature of our white tin, From whence it hath the name of Britain." Pryce, who wrote in 1778, describes the various methods of treating tin ores then employed and which very closely resem- ble — exceptior being made of certain mechanical appliances — those now in use. He, however, very properly remarks that " the mode of dressing tin and its leavings are too nu- merous to lay before the reader without danger of prolixity. All of them depend upon the difference of the kinds of tin in the stone, and must be dealt with, agreeable to the judg- ment of the several manufacturers. So much depends upon the skill of a dresser, that one may save one-twelfth part of a. batch of tin, which another for want of equal knowledge may cast away in waste, or perhaps take up so much waste with it as to depreciate the value of the whole by two parts in twenty. Nevertheless, all the dressers save the hinder stuff from the frame end, as it washes off in a pit, by the name of catchers, which is expressive enough ; and likewise the mud at the trunk ends, by the other name of loobs, both of which are denominated the loobs, after leavings, or leav- ings of leavings. These are wrought over in the same man- ner as the former, mostly upon tribute, by an aged work- man and a few little boys in the summer months, when they can stand out in good weather, and do a long day's easy la- bor. The tribute paid by the undertaker is one-third of the produce in white tin ; the other two-thirds he has for himself to pay his cost and charges." The smelting of tin ores in Cornwall appears to have been anciently conducted in furnaces scooped out of the ground, and in which a mix- ture of black tin and charcoal was employed, the heat be- ing kept up by means of a blast supplied by the aid of rude bellows. Remains of ancient establishments of this kind are frequently met with in various parts of the country, and are known by the name of "Jews' Houses." Not long since a relic of this description was found buried beneath a stratum of peat, twelve feet in thickness, at Redmoor, in the parish of Luxillian. At this place, in addition to a consid- erable amount of metallic tin, more or less oxidised on the exterior, large quantities of imperfectly fused scoriase, mix- ed with imbedded charcoal and metallic globules, were dis- covered. A Romano-British fibula, some stone arrow-heads, a fragment of an earthen tuyere, and numerous blocks of peat, which had evidently been collected for the purpose of being employed as fuel, and subsequently covered by a de- posit of the same material, were also found. Another ancient smelting-house found in the same neigh- borhood was probably of a more recent date ; since not only were portions of the stonework of the furnace still in situ, but the slags were more completely fused, and entirely free from metallic globules. These slags presented the appear- ance of thin fragments of bottle-glass, and were found on analysis to have the following composition : — Analysis on 100 Parts. Silica 40-60 Alumina 19-22 Oxide of tin 22-95 Protoxide of iron •.. 7-31 Sulphide of iron .' 9-04 Lime Traces Potash 1-00 100-12 In this place were discovered fragments of tobacco-pipes, and a silver coin of Charles I. Previous to the time of Charles I. no attempt had been made to efiect the smelting of tin by means of pit-coal ; but at this period some unsuc- cessful experiments were undertaken by Sir Seville Green- ville, of Stow, in Cornwall: no satisfactory results were, however obtained till the second year of the reign of Queen Anne, when a Mr. Liddell, with whom was associated a Mr. Moult, celebrated for his knowledge of chemistry, obtained letters patent for the reduction of tin ores by the use of fos- sil-fiiel in a blast fiirnace. The invention of the reverbera- tory furnace soon followed this discovery. This apparatus, slightly modified in form and dimensions, is emplo5'ed by the tin-smelters of the present day. Coal was not generally em- ployed as fuel until the beginning of the reign of Charles I. It is, however, mentioned in documents anterior to the reign of Henry III. ; for that monarch, in the year 1234, renewed a charter granted by his father to the inhabitants of New- castle, who were permitted to dig for coal upon paying a yearly tax of £100. That fossil fuel had been introduced into London before 1306, is proved by the fact that in that 16 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. year its use was prohibited, from the supposed tendency of its smoke to corrupt the atmosphere. The coal-fields at Colliery, near Lanchester, were first opened in the year 1330 ; those at Merrington and Ferry Hill in 1343 ; and those of Gateshead, Wickham, and Tynemouth in 1500. In 16i!5, a patent was granted by James VI. of Scotland to Mr. Ramsey for machinery to be employed in draining collieries by water-power. Grey, in his " Chronographia,'' published in 1649, says : — " Some South gentlemen, upon hope of benefit, came in to this county (Durham) to hazard their monies in coal mines. Mr. Beaumont, a gentleman of great ingenuity and rare parts, adventured into our mines with his £30,000 who brought with him many rare engines not known then in these parts, as the art to bore with rods, to try the deepness and thickness of the coal, rare engines to draw water out of the pits, wagons with one horse to draw coal from the pits to the staiths, to the river, &c. Within a few years he con- sumed all his money, and rode home upon his light horse." " Now the trade of coal began not past fourscore years since. Coals in former times were only used by smiths, and for burning lime. Notwithstanding this, it appears that in 1602 the trade had arrived at such an extent as to occupy twenty-eight acting fitters, or hostmen, who were to vend by the year nine thousand and eighty tons of coal, and find eighty-five keels for that purpose." " In the year 1600, among other regulations made at a Courte of the Hostman's Company at Newcastle, wains were ordered to be measured and marked ; for it appears that ' for time out of mind yt hath been accustomed that all cole wains did usuallie carry and bring eighte boules of coles to all the staiths upon the ryver of Tyne; but of late several had brought only or scarce seven boules.' The same record men- tions ' two small maunds or pannyers, holdinge two or three pecks a-piece.' " From the foregoing paragraphs it appears that coals were in those days not only carried in carts along ordinary roads, but also on the backs of horses. Amongst the rare engines introduced by "Master Beaumont" into the coal trade, were, " waggons with one horse to carry down coales from the pits to the staiths, to the river." They are thus de- scribed by Lord Keeper Guilford:— The manner of the car- riage is by laying rails of timber from the colliery down to the river, exactly straight and parallel, and bulky carts are made with four rollers fitting tnese rails, whereby the car- riage is so easy that one horse will draw down four or five chaldrons of coals, and is an immense benefit to the coal merchants." In 1676, Lumley Colliery, as well as the col- lieries of Heaton and Jesmond, had chain pumps worked by water-wheels. The earliest mention of a steam-engine for mining purposes is at the colliery of Grifi", near Coventry, in the year 1711 ; and in the following year, Newcomen and Crawley contracted to pump water by this means, for Mr. Black, of Wolve«harapton. Mr. Bald, in his " Coal Trade of Scotland," published in 1812, says, that in 1690, water- wheels and chains of buckets were commonly employed to drain the collieries in that country. The axle of the wheel extended across the pit's mouth, and small carriers were fixed upon it to receive endless chains, consisting of two or three tires, which reached down to the coal. To these chains were attached wooden buckets or troughs in a horizontal position, which circulated with the chains, ascending on one side, and descending on the other, filling at the bottom, and discharging at the top, as they turned over the wheels on the great axletree. This apparatus was subject to the incon- venience that, whenever a joint gave way, the whole set of chains fell to the bottom, every bucket being splintered to pieces by the fall. When water could not be procured, the same sort of machinery upon a smaller scale was worked by horses. In 1708, windmills were erected to work pumps in several collieries in Scotland; but, being ineffective in calm weather, their application was very limited. In 1709, John, Earl of Mar, who paid great attention to the improvement of his collieries in Clackmannanshire, sent the manager of his works to Newcastle to inspect the machinery of that dis- trict. From the report of this gentleman it appears that the machines there in use were water-wheels, and horse-en- gines, fiirnished with chain-pumps: the common depth of the pits being from twenty to thirty fathoms, whilst a few were from fifty to sixty fathoms deep. When it wa? found requisite to draw water from the depth of thirty fathom«, two pits were usually sunk. The first of these was made thirty fathoms deep ; and the other only half that depth. One machine drew the water half-way up the deeper pit, where it was poured into a level communicating with the bottom of the other ; from this the water was raised to the surface by another machine. In deep mines, a third pit with a third machine was resorted to. In Scotland, how- ever, at the same time, the machinery employed was more powerful, since water was raised at once from the depth of forty fathoms, by a chain of buckets as before described. The first steam engine created near Newcastle, was put up at Byker, in 1714, by the son of a Swedish nobleman, who taught mathematics. These engines were worked by atmos- pheric pressure above the piston, whilst the vacuum beneath was created by the injection of water into the cylinder ; the alternate movements were executed by the hand of an at- tendant, until the year 1718, when a Mr. Beighton invented a method of performing this operation by means of the en- gine itself. The history of mining in England is intimately connected with that of the steam-engine ;" and we invariably find that the mining districts have been the fields of opera- tion for the inventors and early improvers of this machine. In this way, mining has not only been vastly benefited by the application of steam-power, but, on the other hand, has itself in a great degree contributed to produce the present high state of perfection to which this machine has been brought. The old atmospheric engine was capable of rais- ing 5,000,000 lbs. of water one foot high, by the expenditure of one bushel of coal. In 1776, Watts' improved engine yielded an average of 18,900,000. In 1800, the duty had been raised to 20,000,000. In 1820, the average duty of thirty-seven Cornish engines was 28,736,398. In 1828, the fifty-four engines reported afibrded an average duty of 37,- 000,000. The total number of engines reported in 1856 was forty-six ; and their mean duty, 44,650,000. Of these ma- chines some are known to have performed more than 100,- 000,000 ; and still better results have been obtained by the employment of high-pressure condensing engines, and a greater length of stroke in the cylinder. — compiled frma " Becords of Mining and Melallurgy" by Philips d: Darlington, IRON; HISTORICALLY CONSIDERED. THE use of iron can be traced to the earliest ages of an- tiquity. It was first used in Asia, the birthplace of the human race, and soon after the time when " men be- _ gan to multiply on the face of the earth." Tubal Cain who was born in the seventh generation from Adam, is de- scribed as " an instructor of every artificer in brass and iron." The Egyptians, whose existence as a nation probably dates from the second generation after Noah,and whose civilization is the most ancient of which we have any exact knowledge, were at an early period familiar with the use of iron, and it seems probable that they were engaged in its manufacture. Iron tools are mentioned by Herodotus as having been used in the construction of the pyramids. In the sepulchres at Thebes and Memphis, cities of such great antiquity that their origin is lost, butchers are represented as using tools which archaeologists decide to have been made of iron and steel. Iron sickles are also pictured in the tombs at Mem- phis, and at Thebes various articles of iron have been found which are preserved by the New York Historical Society and are probably three thousand years old. Kenrick, in his Ancient Egypt under the Pharaohs, is authority for the statement that Thothmes the First, who reigned about seven- teen centuries before Christ, is said, in a long inscription at Karnak, to have received from the chiefs, tributary kings, or allied sovereigns of Lower Egypt, presents of silver and gold, " bars of wrought metal, and vessels of copper, and of bronze, and of iron." From the region of Memphis he received wine, iron, lead, wrought metal, animals, etc. An expedition which the same king sent against Chadasha re- turned, bringing among the spoil " iron of the mountains, 40 cubes." Belzoni found an iron sickle under the feet of one of the sphinxes at Karnak, which is supposed to have , been place^l there at least six hundred yeare before Christ THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 17 A piece of iron was taken from an inner joint of the great pyramid at Gizeh in 1837. The reference to iron in Deu- teronomy, iv. 20, apparently indicates that in the time of Moses the Egyptians were engaged in its manufacture, and that the Israelites, if they did not malce iron for their task- masters, were at least familiar with the art of manufacturing it. " But the Lord hath taken you, and brought you forth out of the iron furnace, even, out of Egypt." This expres- sion is repeated in I. Kings, viii. 51. A small piece of very pure iron was found under the Egyptian obelisk which has recently been removed to New York. The use of iron and the art of manufacturing it were introduced into the south- ern and western portions of Arabia at a very early day, and this may have been done by the Egyptians ; it is at least established that some of their own works were located east of the Red sea. In 1873 the ruins of extensive iron works of great antiquity and of undoubted Egyptian origin were dis- covered near the Wells of Moses, in the Sinaitic peninsula. The country which lay to the south of Egypt is supposed to have produced iron in large quantities. Iron was also known to the Chaldeans, the Babylonians, and the Assyrians, who were cotemporaries of the early Egyptians. Some writers suppose that the Egyptians derived their supply of iron principally from these Asiatic neighbors and from the Arabians. Babylon was built about seventeen centu- ries before Christ, and Nineveh was of about equal antiquity. Iron ornaments have been found in Chaldean ruins, and Chaldean inscriptions show that iron was known to the most ancient inhabitants of Mesopotamia. In the ruins of Nineveh the antiquarian Layard found many articles of iron and inscriptions referring to its use. Among the articles discovered by him were iron scales of armor, from two to three inches in length. " Two or three baskets were filled with these relics." He also found a " perfect helmet of iron, inlaid with copper bands." In the British Museum there are preserved several tools of iron which were found at Nineveh by Layard, including a saw and a pick. The art of casting bronze over iron, which has only recently been introduced into modern metallurgy, was known to the Assyrians. At Babylon iron was used in the fortifications of the city just prior to its capture by Cyrus, in the sixth century before Christ. In a celebrated' inscription Nebuchadnez- zar declares : " With pillars and beams plated with copper and strengthened with iron I built up its gates." The huge stones of the bridge built by his daughter, Nitocris, were held together by bands of "iron fixed in place by molten lead. The Book of Job, which relates to a patriarchal period between Abraham and Moses, contains frequent references to iron, "even to bars of iron," " bai'bed irons," " the iron wea- pon," and " the bow of steel." In the 28th chapter and 2d verse it is declared that " iron is taken out of the earth." In the 19th chapter and 24th verse the " iron pen," which could be used to engrave upon a rock, is mentioned. Job is supposed to have lived in the northern part of Arabia, in the Land of Uz, which was separated from Ur of the Chal- dees, where Abraham was born, by the Euphrates. Iron ore of remarkable richness is still found between the Eu- phrates and the Tigris. Moses led the children of Israel out of Egypt fifteen or sixteen hundred years beforethe Chris- tian era. In the story of their wanderings iron is frequent- ly mentioned. In Leviticus, vii. 9, the frying-pan is men- tioned. When the Israelites under Moses spoiled the Midianites they took from them iron and other metals; when they smote Og, the king of Bashan, they found with him an iron bedstead. Canaan, the Land of Promise, was described by Moses in Deuteronomy, viii. 9, as " a land whose stones are iron." Iron is still made in the Lebanon mountains. In Deuteronomy, xxvii. 5, 6, and in Joshua, viii. 31, the use of iron tools in building an altar of " whole stones" to the Lord is prohibited, which shows that, not onlv did the Israelites in the days of Moses have a know- ledge of iron tools that would cut stone, but that the Egyp- tians must have possessed the same knowledge. After the Israelites came into possession of Canaan iron is frequently mentioned in their history, some of the earliest references being to chariots of iron, which the Canaanites used in their wars with them, and which were probably armed with iron scythes. Chariots of the same kind were doubtless used by the Egyptians. Frequent mention is made of agricultural implements and tools of iron, and of iron weapons of war. In the description of the armor of Goliath it is said that " his spear's head weighed six hundred shekels of iron." Axes and saws and harrows of iron are mentioned in the reign of David, and axes and hammers and tools of iron in the reign of Solomon. Isaiah also speaks of harrows of iron. Daniel says that " iron breaketh in pieces and sub- dueth all things." When David, about a thousand years before Christ, made preparations for the building of the temple he "prepared iron in abundance for the nails for the doors of the gates and for the joinings ;" and in his instruc- tions to Solomon concerning it he said that he had prepared " brass and iron without weight," and that of gold, silver, brass, and iron "there is no number." It would appear that the Israelites in the early part of their history were not skilled in the manufacture or manipulation of iron, but were generally dependent upon their neighbors for iron itself and for the skill to fashion it. In the reign of Saul, because of the oppression of the Philistines, " there was no smith found throughout all the land of Israel ; but all the Israelites went down to the Philistines to sharpen every man his share, and his coulter, and his axe, and his mattock." When Solomon came to build the temple he sent to Hiram, king of Tyre, for " a man cunning to work in gold, and in silver, and in brass, and in iron." The Phoenicians were celebrated as workers in all the metals. In Jeremiah, xv. 12, the question is asked by the prophet : " Shall we break the northern iron and the steel?" The northern iron and steel here referred to were probably products of Chalybia, a small district lying on the southeastern shore of the Euxine, the inhabitants of which, called Chalibees or Chalybians, were famous in the days of Asiatic pre-eminence for the fine quality of their iron and steel. Herodotus, in the fifth cen- tury before Christ, speaks of " the Chalybians, a people of iron-workers." They are said to have invented the art of converting iron into steel, but it is probable that, as they used magnetic sand, they made steel mainly. Latin and Greek names for steel were derived from the name of this people. From the same source we obtain the words " chaly- bean " and " chalybeate." But other eastern nations doubt- less made steel as early as the Chalybians. In Ezekiel, xxvii. 12, the merchants of Tarshish are said to supply Tyre with iron and other metals, and in the 19th verse of the same chapter the merchants of Dan and Javan are said to supply its market with " bright iron." Tarshish is supposed to have been a city in the south of Spain, and Dan and Javan were probably cities in the south of Arabia. The name Tarshish may, however, have referred generally to the countries lying along the western coast of the Medi- terranean and beyond the Pillars of Hercules. Dan and Javan may have supplied iron made in the southern part of Arabia, or they may have traded in the " bright iron," or steel, of India. The period embraced in the references quoted from the prophet was about six hundred years before Christ. Both Tyre and Sidon traded in all the products of the East and the West for centuries before and after Eze- kiel, and iron was one of the products which they supplied to their neighbors, the Israelites. The Persians and their northern neighbors, the Medes, made iron long before the Christian era, and so did the Parthians and other Scythian tribes. The Parthian arrow was first tipped with bronze, but aft;erwards with steel. The Parthian kings are said to have engaged with pride in the forging and sharpening of arrow-heads. Iron is still made in Persia by primitive me- thods. India appears to have been acquainted with the manufac- ture of iron and steel from a very early period. When Alexander defeated Forus, one of thePunjaub tings, in the fourth century before the Christian era, Porus gave him thirty pounds of Indian steel, or wootz. This steel, which is still made in India and Persia, was a true steel, and of a quality unsurpassed even in our day. It was and still is mauufactured by a process of great simplicity, similar to that by which crucible steel is now manufactured. Long prior to the Christian era, as well as for many centuries afterwards, Damascus, the capital of Syria, manufactured its famous swords in part from Indian wootz. The people of India further appear to have become familiar, at an early period in their history, with processes for the manu- facture of iron on a large scale which have since been lost. 18 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. It is circumstantially stated that a cyliadrical wrought-iron pillar is now standing- at the principal gate of the ancient, mosque of the Kutub, near Delhi, in India, which is about 60 feet long, 16 inches in diameter near the base, contains about 80 cubic feet of metal, and weighs probably over 17 tons. The immense proportions of this pillar are not more striking than its ornate finish. An inscription in Sanscrit is variously interpreted to assign its erection to the ninth or tenth century before the Christian era or to the early part of the fourth century after it." In the ruins of Indian tem- ples there have been found wrought-iron beams similar in size and appearance to those used in the construction of buildings at the present time. Metallurgists are unable to understand how these large masses of iron could have been forged by a people who appear not to have possessed any of the mechanical appliances for their manufac- ture which are now necessary to the production of simi- lar articles. The period at which China first made iron is uncertain, but great antiquity is claimed for its manufac- ture in that mysterious country. In a Chinese record which is supposed to have been written two thousand years before Christ iron is mentioned, and in other ancient Chi- nese writings iron and steel are both mentioned. Pliuy the Elder, writing in the first century of the Christian era, thus speaks of the iron of China, the inhabitants of which were known in his day as the Seres: " Howbeit, as many kinds of iron as there be, none shall match in goodness the steel that Cometh from the Seres, for this commodity also, as hard ware as it is, they send and sell with their soft silks and fine furs. In a second degree of goodness may be plac- ed the Parthian iron." It may be assumed as susceptible of proof that the knowledge of the use of iron, if not of its manufacture, was common to all the people of Asia and of Northern Africa long previous to the Christian era. The Phoenicians would carry this knowledge to their own great colony, Carthage, which was founded in the ninth century before Christ, and to all the colonies and nations inhabiting the shores of the Mediterranean. Phoenician merchants obtained iron from such distant countries as Morocco and Spain, and possibly even from India and China, as well as from nearer sources. But in time the merchants of Tyre and the " ships of Tarshish " deserted the places that long had known them, empire after empire fell in ruins, and with the fading away of Asiatic and Africian civilization and magnificence the manufacture and the use of iron in Asia and Africa ceased to advance. Egypt has probably not made iron for nearly three thousand years, and probably no more iron is made in all Asia to-day than was made in its borders twenty-five centuries ago, when Babylon was " the glory of kingdoms, the beauty of the Chaldees' excel- lency." The Early Use of Iron in Europe.— The authentic history of the use of iron in Europe does not begin until about the period of the first Olympiad, corresponding to the year 776 before the Christian era, although both Grecian poetry and the traditions of the Grecian heroic age have transmitted to us many references to iron long prior to that period. About the time of Moses the Phoenicians are said to have introduced into Greece the art of working in iron and other metals. Minos, king of Crete, was indebted to them for the tools which enabled him to build his powerful fleet. In the fifteenth century before Christ the burning of the forests on Mount Ida, in Crete, is said to have accident- ally communicated to the inhabitants the art of obtaining iron from native ores. This discovery enabled the Idsei Dactyli, who were priests of Cybele, to introduce the manu- facture of iron and steel into Phrygia, a Greek colony in Asia Minor. So read some of the stories which have come down to us from the heroic age of Greece, and which, like the well-known story of Vulcan and his forges on the island of Lemnos, may be wholly fabulous ; but there is nothing im- probable in the conclusion which may be derived from them, that they point to a very early use of iron by the Greeks! From Phoenicia certainly, and probably also from Egypt, they would be likely to derive a knowledge of its use in the mechanic arts at least a thousand years before Christ. It is worthy of notice that the mythologies of both Greece and Egypt attributed the invention of the art of manufacturing iron to the gods — a fact which of itself may be regarded as establishing the great antiquity of the art in both countries. We come next to that period of Grecian history which intro- duces us to historical personages and historical events. Ly- curgus, who lived about the time of the first Olympiad, required the Spartans to use iron as money ; he " allowed nothing but bars of iron to pass in exchange for every com- modity." These bars, for which iron rings or quoits were afterwards substituted, may have been made from the iron ores which were found in abundance in Laconia, or they may have been obtained abroad ; but the use of iron as a measure of value in the days of Lycurgus indicates that this metal could not then have been a rare commodity. If it had been a precious metal Lycurgus would not have enforced its use as money. The iron ores of Elba were worked by the Greeks as early as the year 700 before Christ. They called the island ^thalia, " from the blazes of the iron works." The working of the ores of this island is men- tioned by Herodotus, who lived in the fifth century before Christ ; by Diodorus, a Sicilian historian of the first century before Christ ; and by Strabo, a Greek traveler and geogra- pher, who lived at the beginning of the Christian era. The Phoenicians made iron on the island of Euboea at a very early day, and the Greeks afterwards actively prosecuted the same pursuit. Strabo speaks of the mines of Euboea as being partially exhausted in his day. In Boeotia, on the mainland of Greece, iron was also made in very early times, and probably in other parts of the Grecian mainland and on the Grecian islands where iron ores are now found. On the island of Seriphos the ores are of the richest quality. He- rodotus speaks of iron heads to lances and arrows in his day. He also mentions a silver bowl inlaid with iron, the work of Glaucus the Chian, which Alyattes dedicated at Delphi about the year 560 before Christ. Chalybian steel was imported into Greece in the time of Herodotus ; and in the time of Aristotle, who lived a century later, the Greeks were themselves familiar with the manufacture of steel. Sophocles, who died in the year 406 before Christ, speaks of the tempering of iron in water. The manufacture of swords of steel about this time received some attention in Greece, as it did elsewhere. The father of Demosthenes, who was a manufacturer of arms, probably made steel swords. Iron and steel weapons of war began to displace those of bronze in most Mediterranean countries about the time of the battle of Marathon, which was fought in the year 490 before Christ. When Xerxes invaded Greece, ten years after the battle of Marathon, the Assyrians in his army carried wooden clubs '' knotted with iron." The use of iron scythes as well as iron sickles was common among the Greeks about this time. Alexander, in the fourth century before Christ, is said by Pliny to have strengthened a bridge over the Euphrates, at Zeugma, with a chain made of links of iron. Daimachus, a writer who was cotemporary with Alexander, enumerates four different kinds of steel and their uses — the Chalybdic, Synopic, Lydian, and Lacedaemonian. Each kind of steel was adapted to the manufacture of a particular tool. From the Chalybdic and Synopic were made ordinary tools ; from the Lacedaemonian were made files, augers, chisels, and stone-cutting implements ; and from the Lydian were made swords, razors, and surgical instruments. The accounts left by this and other writers indicate great proficiencv bv the Greeks in the use of steel, and the possession of much" skill in its manufacture. According to accepted chronologv, Rome was founded in the year 753 before the Christian era. It reached the culmination of its power about the end of the first century of that era. From its foundation to the begin- ning of its decline embraced a period of about nine hundred years. During the first part of this period Rome was favored with the experience of older nations in the use and manu- facture of iron, and during the last part of it she greatly contributed by her energy and progressive spirit to extend its use and to increase its production. The Greeks were the great teachers of the Romans in all the arts, including metal- lurgy ; but the Etruscans, who were the near neighbors of the Romans, and whom they in time supplanted, also con- tributed greatly to their knowledge of the arts of ancient civilization. The Etruscans, however, owed thoir civili- zation in large part, to the Tyrrhenian Greeks, with whom they coalesced centuries before Rome was founded. . Etruria was largely devoted to commerce, and among the countries with which it traded were Phoenicia and Cartilage, as well afi Greece and its colonies. From all these countries Etruscan THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 19 civilization was invigorated and diversified, and Rome in its early days enjoyed the benefit of this invigoration and diver- sification. That it early acquired from the Etruscans a knowledge of the use and manufacture of iron can easily be imagined, and subsequent direct contact with Grecian colo- nies and with "Greece itself would extend this knowledge. The island of Elba lay off the Etruscan coast, and, as has already been stated, its iron ores were extensively used by the Greeks about the time when Rome was founded. Its mines were also worked by the Etruscans, and its ores were smelted both on the island and on the mainland. They were also taken to other countries to be converted into iron. After a lapse of twenty-five centuries the iron ores of this celebrated island are still exported, many cargoes finding their way to the United States. The Romans would also obtain iron from the islands of Corsica and Sardinia, but chiefly from the former. This island was occupied by the Ligurians and the Etruscans about the time of the founding of Rome, and by the Etruscans for centuries afterwards. The Carthaginians succeeded the Etruscans, and the Romans the Carthaginians. Iron was made in Corsica from the ear- liest times, and is still made in small quantities. The island has given a name to the Corsican forge, which is yet in use. A few years ago ten of these forges were in operation in Corsica, and they were probably almost identical in character with those which were used on the island when Rome was founded. Some of the swords and javelins of the Romans were made of iron or steel in the fifth century before the Chris- tian era, but their agricultural implements, as has been shown in the reference to Etruria, were made of iron at an earlier period. The Roman battering-ram, which was bor- rowed jtrom the Greeks, had a head of iron, and iron rings were placed around its beam. The Romans used this en- gine of war at the siege of Syracuse, in the year 212 before Christ. Prior to this time iron and steel tools were in common use among the carpenters, masons, shipwrights, and other tradesmen of Rome. At the beginning of the Chris- tian era iron was in general use throughout the Roman Em- pire, the supply being derived from many countries which were subject to its sway. In the Acts of the Apostles, xii. 10, is a statement which indicates that iron was used at this period for architectural purposes and in public works. "When they were past the first and second ward they came unto the iron gate that leadeth unto the city." Iron was, however, used especially for tools, agricultural implements, and weapons of offense and defense. Pliny says that " iron ores are found almost everywhere," and that " the processes for refining the metal are nearly everywhere the same." It does not appear, however, that the Romans made iron at this time either at Rome or in its immediate vicinity. Pliny remarks that " in abundance of metals of every kind Italy yields to no land whatever, but all search for them has been prohibited by an ancient decree of the Senate." This pro- hibition probably applied only to the territory surrounding Rome. Vestiges of iron used by the Romans in the first century after Christ have, been found in the ruins of the Coliseum, which was built by the Emperor Vespasian. This iron was used as clamps to bind together the stones of that remarkable structure. Iron has also been found in the ruins of Pompeii, which was destroyed about the time the Coliseum was built. In the northern part of Italy, just south of the Alps, corresponding to Piedmont and Loin- bardy of the present day, iron was made by the Romans in the first and second centuries before the Christian era. Pliny speaks of the excellence of the water at Comum, now Como, for tempering iron, although iron ores were not found there. Among the provinces which contributed largely to the Roman supply of iron at this time was Noricum, corre- sponding to Styria and Carinthia in Austria. Both Pliny and Ovid, who lived at the beginning of the Christian era, speak of Norican iron as being of superior quality, and it is certain that ferrvm noricum was celebrated throughout Italy before tlieir day. The best of swords were made from it in the reign of Augustus: Horace speaks of them. The spathic ores of Styria and Carinthia are still held in high favor; and the supply of ore, especially in the famous iron mountains of Erzberg and Huttenberg, shows no signs of exhaustion at the end of twenty centuries of almost con- stant use. Iron is still made in these provinces of Austria in small forges which are almost as primitive in character as those used by their anciejit Celtic inhabitants. Celtic and Roman implements and medals, including a coin of the Emperor Nerva, who lived in the first century of the Chris- tian era, have been found in mounds of slag in the vicinity of Carinthian mines. Cotemporaneously with the working of the Norican iron mines by the Celts, the Quadi, who in- habited the province of Moravia, lying north of Noricum, also made iron. The geographer Ptolemy, who lived in the second century of the Christian era, makes mention of the Quadi as ironworkers. Great antiquity is also claimed lor the iron industry of that vast country which was known to the Romans as Sarmatia, now known as Russia in Europe. The nomadic Scythians would doubtless carry the art of ironmaking to the Ural mountains, where iron ore was and still is abundant. One of the Greek poets calls Scythia " the mother of iron " — Scythia comprising the countries lying north, east, and south of the Caspian sea. The Phoenicians are known to have founded colonies in France and in Spain prior to the sixth century before Christ. They had settlements in Southern Gaul, on the Garonne and Rhone. The ancient city of Massilia, now Marseilles, is supposed to occupy the site of a Phoenician trading-post, which fell into the possession of the Phocsean Greeks about the period we have mentioned, who gave to it great com- mercial and manufacturing importance. The Greeks also planted other colonies in Southern France. The city of Tartessus, or Tarshish, is supposed to have been one of the Phoenician settlements in the south of Spain ; the city of Gades, or Cadiz, was another. Tartessus stood between the two arms of the Guadalquivir ; but in the time of Strabo, who died about the year 25 of the Christian era, it had ceased to exist ; Gades was its near neighbor, and ttill ex- ists. It is probable that the Phoenicians introduced the manufacture of iron among the native inhabitants of France and Spain; the Iberians and Celtiberians of the latter country were certainly active in mining and working in metals several hundred years before the Christian era, and enjoyed an extensive trade in metals with Tyre and Carthage. Under Grecian influence, which succeeded that of the PhcEuicians in Spain, the Celtiberians, who inhabited the central and northeastern parts of the country, continued to make iron, and to this was joined the manufacture of steel. The famous forges of Aragon and Catalonia were active during the Grecian occupation of Spain. The Romans succeeded the Carthaginians. The Romans greatly extended the arts of their advanced civilization among the native inhabitants. They gave special encouragement to the manufacture of iron and steel, although in justice to the Celtiberians it must be said that their metallurgical skill was at least equal to that of the Romans. Polybius, a Greek historian, who flourished in the second century before Christ, says that the helmet and armor of the Roman sol- dier were of bronze, but that the sword was a cut-and-thrust blade of Spanish steel. At the battle of Cannse, in the year 216 before Christ, the Romans had learned from the Cartha- ginians at very great cost the value of the Spanish sword. Livy has recorded the fines which were imposed by Cato the Censor on the Celtiberian iron works after the Roman war with Spain in the year 194 before Christ. About the time these fines were imposed, the town of Bilbilis, near the present Moorish-built town of Calatayud, in Aragon, and the little river Salo were celebrated as the center of the iron district of Celtiberia. The water of the Salo was supposed to possess special qualities for the tempering of steel. The same excellence was attributed to other streams in Spain and in some other countries. Diodorus speaks of the ex- cellent two-edged swords, " exactly tempered with steel," and of other arms which the Celtiberians in Aragon manu- factured from rods of iron which had been nisted in the ground "to eat out all the weaker particles of the metal, and leave only the strongest and purest." He says that the swords which were manufactured from these rods " are so keen that there is no helmet or shield which cannot be cut through by them." Plutarch, who died about the year 140 of the Christian era, gives the same account of the Celti- berian method of purifying iron. Pliny speaks of the ex- cellent iron of Bilbilis and Turaisso, the latter a town in Tarragona, and of an extensive mountain of iron upon the coast of Biscay, probably Somorrostro. Iron ore from the 20 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. coast of Biscay is now exported in large quantities to Great Britain, the United States, and other countries. Toledo has been famous since the Roman occupation of Spain for its manufacture of swords, but this industry existed at Toledo before the appearance of the Romans. The town was cap- tured by them in the year 192 before Christ. The Roman army from that time forward was provided with steel swords from Toledo and other places in Spain. The manufacture of Toledo blades probably attained its greatest development in the fifteenth and sixteenth centuries. The business still continues. A certain degree of mystery has always sur- rounded the manufacture of these swords, and the same may be said of the manufacture of the equally-celebrated Da- mascus blades. The iron industry of Spain was the first in the world for many hundred years after the Romans obtained a foothold in the country, surviving the downfall of the Roman power in the peninsula, and flourishing under the subsequent rule of the Visigoths. This distinction was strengthened when the Moors became masters of the greater part of Spain, in the beginning of the eighth century of the Christian era. They stimulated the further development of the iron manu- facture in the districts subject to their sway. At the same time the native inhabitants who had successfully resisted the Moorish arms continued to push their small Catalan forges still farther into the Pyrenees and along the coast of Biscay, lighting up the forests in every direction. So prom- inent did the iron industry of Spain become that its iron- workers were sought for by other countries, and on the French side of the Pyrenees, and in the mountains of Ger- many, and along the Rhine, they set up many of their small forges. The Catalan forge, which received its name from Catalonia, has been introduced into every civilized country of modern times that produces iron, and it still exists in al- most its original simplicity in the mountains of both Spain and France. France did not at an early period in its his- tory make the same progress in the manufacture of iron that has been recorded of Spain, partly because it did not re- ceive the same outside attention which made Spain a center successively of Grecian, Roman, Gothic, and Moorish civil- ization, but partly also because it did not possess iron ores of the same rich quality as those of Spain. It may be said, however, that the use of iron weapons was well known to the Gauls who confronted the Romans hundreds of years before the Christian era, and to their successors who opposed the armies of Julius Csesar, who refers frequently to their use of iron. In speaking of the Veneti, who inhabited the southern part of Brittany, he makes the remarkable statement that the anchors for their ships were fastened to them with iron chains instead of cables. He also says that the benches of the ships were fastened with iron spikes of the thickness of a man's thumb. This cir- cumstantial statement denotes great familiarity with the use of iron by the Veneti. In describing the siege of Avaricum, the modern Bourges, a fortified town of the Bituriges, Csesar says that "there are in their territories extensive iron mines, and consequently every description of mining opera- tions is known and practiced by them." For hundreds of years after Caesar's time only faint glimpses are furnished us of an iron industry in France. During this period it was doubtless wholly confined to Catalan forges. StiXckofens, or high bloomaries, were in use in Alsatia and Burgundy in the tenth century. When William the Norman invaded England in 1066 he was accompanied by many smiths who were armorers and horse-shoers, and therefore skilled work- ers in iron. The modern blast furnace is supposed to have originated in the Rhine provinces about the beginning of the fourteenth century, but whether in France or Germany or Belgium is not clear. A hundred years later, in 1409, there was a blast furnace in the valley of Massevaux, in France, and it is claimed by Landrin that France had many blast furnaces about 1450. Iron was made by the Belgas as early as tha time of Julius Csesar, and possibly at an earlier date. Heaps of iron cinder, which archaeologists decide to be as old at least as the Roman occupation of Gallia Belgicii, have recently been found on the tops of ferruginous hil- locks in the provinces of Brabant and Antwerp, and in these cinder heaps flint arrow-heads and fragments of coarse pot- tery, characteristic of the earliest dawn of civilization, have been discovered. During the Roman occupation of the country iron was produced in many places in Belgium, a fact which is attested by heaps of cinder or slag which yet exist and are found in association with Roman relics. It has been supposed that the iron which was made in Belgium at this period was produced in low bloomaries without an artificial blast. We do not again hear of the Belgian iron industry until the tenth century, when high bloomaries, or wolf furnaces, otherwise stuckofena, were in operation in the valley of the Meuse. We are informed that " iron waa made to perfection in the Netherlands " in the twelfth century. In the fourteenth century high furnaces, or fiuasofens, were in existence in Belgium. In 1340 a furnace of this descrip- tion was built at Marche les Dames, near Namur, to which, in 1345, special privileges were granted by William, count of Namur. These furnaces were true blast furnaces, pro- ducing cast iron. In 1560 there were in operation in Bel- gium, according to the authority of M. Deby, 86 blast fur- naces and 85 forges. Near Saarbrucken, in Rhenish Prussia, where the first battle between the French and the Germans was fought in the war of 1870, iron is said to have been made in the days of Roman ascendancy, but the Germans do not appear du- ring this period to have been as familiar as their neighbors with its manufacture. Polybius, however, states that the Teutons and the Cimbri, from northwestern Germany, who invaded Italy and Gaul near the close of the second century before Christ, " were already familiar with iron, and pos- sessed weapons of that metal." Tacitus informs us that " iron does not abound in Germany, if we may judge from the weapons in general use. Swords and large lances are seldom seen. The soldier grasps his javelin, or, as it is called in their language, his /ram, an instrument tipped with a short and narrow piece of iron, sharply pointed, and so commodious that, as occasion requires, he can manage it in close engagement or in distant combat." He further says that the use of iron was unknown to the ^styans, who in- habited the northern part of Germany lying upon the Bal- tic ; " their general weapon was the club." The Gothinians are described by Tacitus as a people who " submit to the drudgery of digging iron in mines " for the Quadi, who were their neighbors. Ernest, the German editor, says the Gothi- nians had iron of their own, and did not make use of it to assert their liberty. Tacitus wrote his Treatise on Germany about the close of the first century of the Christian era. From this time forward the condition of the German iron industry is enveloped in obscurity until the eighth century, when we hear of iron works, probably wolf furnaces or stuckofens, in the district of the river" Lahn, in Nassau, where iron of great celebrity was made by a guild of " forest smiths " in 780. We are informed by Maw and Dredge that "they had their special privileges, kept an iron mart at Wetzlar, and sent their products regularly to the great an- nual fairs at Frankfort-on-the-Main. This iron industry was especially flourishing during the thirteenth, fourteenth, and fifteenth centuries." During the ei ghth century we hear also of the iron industry of the principality of Siegen. There was a steel forge at the town of Siegen in 1288, which had been in existence before the eleventh century. The iron industry of Siegen was very active during the Middle Ages. About the middle of the thirteenth century stuckofens were in use in Siegen. Percy says that in the beginning of the fifteenth century pig iron was made in Siegen in hlmis- fens. Iron was made in Saxony as early as the eighth cen- tury. Alexander informs us that the flussofen was intro- duced iuto Saxony in 1550, and that the wooden bellows was invented about this time by Hans Lobsinger, an organ- ist of Nuremberg. Iron was made in the Hartz mountains in the eighth century. In the Thuringian mountains wolf furnaces and bloomaries were in existence in the tenth cen- tury, and blast furnaces in the fourteenth century. Alex- ander states that in the latter half of the sixteenth century there was a furnace in these mountains 24 feet high and six feet wide at the boshes, built by Hans-sien, a Voigtlander. In 1377 cast-iron guns were made near Erfurt, in Thuringia. In the fifteenth century pots, plates, balls, etc., of iron were cast at the celebrated Ilscnberg foundry in Germany. Stoves are said to have been cast for the first time in 1490, in Al- sace. Recurring to the iron industry of Austria, Alexander says that the mines of Styria were " opened again " in 712. It appears probable that wolf furnaces were in use in Styria^ THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 21 Carinthia, and Carniola as early as the eighth century, which appears to be the epoch of their introduction in most European countries. The first blast furnace in the Alps provinces was, however, introduced very much later than in Belgium or on the Rhine — the first in Carinthia being built in 1567, at Urtl ; the fir.st in Styria in 1760, at Eisenerz : and the first in Carniola in the early part of the present century. Iron was made in Bohemia and Silesia at an early period, "The Bohemian chronicler, Hajek, of Liboschan, mentions that iron works existed in 677, near Schasslau." Heaps of cinder and remains of wolf furnaces and ore bloomaries are numerous in Bohemia. In 1365 bloomaries were in use in Upper Silesia. The iron industry of Sweden had an existence as early at least as the thirteenth century. A Swedish historian says that the oldest iron mine in Swe- den is probably Norberg, in Westmanland, on the southern borders of Dalecarlia. i?here are documents still in exist- ence, dated July 29, 1303, signed by Thorkel Knutson, the royal marshal, in which Norberg is mentioned as an iron mine. To the miners of Norberg, also, the first recorded privileges exclusively for iron mines appear to have been granted by King Magnus Ericsson, on February 24, 1851. In 1488 the mines of Dannemora were opened, and in 1614, Gustavus Adolphus encouraged the immigration of German fiirnacemen into Sweden. The celebrated iron works at Finspong were established in 1641 by Louis de Gier, from Liege, as a cannon foundry. The Walloon refining process, which takes its name from the Walloons, who were inhabi- tants of Flanders, was introduced into Sweden from Flan- ders in the time of Charles the Twelfth, who reigned from 1697 to 1718. Percy states that the osmund furnace, which was a modification.of the stilckofen, was formerly very com- mon in Sweden. The iron industry of Russia dates histori- cally from 1569, in which year as recorded by Scrivenor, the English "obtained the privilege of seeking for and smelting iron ore, on condition that they should teach the Russians the art of working this metal." The first historical iron works in Russia, however, were established long afterwards, according to the same author, in the reign of the czar Alexis Michaelovitch, about sixty miles from Moscow, and were the only ones in Russia prior to the reign of Peter the Great, who is said to have worked in them before he set out, in 1698, on his first journey into foreign countries. It is not known when the celebrated Russia sheet iron was first made. There is reason to believe that the Russians were skilled ironworkers and metallurgists long before the historic period above mentioned. The bells of Moscow have been famous for hundreds of years. The use of iron in a limited way was known to the Britons before the invasion of England by Julius Caesar in the year 55 before Christ. The Phoenicians, who traded with the Britons probably as early as the year 600 before Christ, may be supposed to have introduced among this barbarous people the use of iron, but we have no proof that they instructed them in its manufacture. The Greeks and Carthaginians succeeded the Phoenicians in trading with the Britons, but there is no evidence that they taught them the art of making iron. They, as well as the Phoenicians, probably took iron into Britain in exchange for tin and other native products. Caasar, in his Commentaries, says of the Britons who opposed his occupation of the is- land that " they use either brass or iron rings, determined at a certain weight, as their money. Tin is produced in the midland regions ; in the maritime, iron ; but the quantity of it is small : they employ brass, which is imported." This quotation from Caesar would appear to establish the fact uiat iron was a precious metal in Britain at the time of his invasion ; at least it would seem to show that it was not in common use, and could not have been used as an article of export. Caesar nowhere mentions the use of iron weapons of war by the Britons. It is worthy of mention that the Belgae had passed over to Britain before Caesar's time and made settlements upon its coast, and whatever arts they pos- sessed they would of course take with them. It cannot be proved that the Belgae made iron in their own country before Caesar's invasion of it; if it could be shown that they did, it might safely be assumed that they would introduce their methods of' manufacture into Britain. Caesar says that a small quantity of iron was made in the maritime regions of the island, and this the Belg£e may have made. The Growth of the British Iron Industry,— If the manufacture of iron by the Britons prior to the Roman in- vasion is enveloped in obscurity and even in doubt, there can be no doubt that iron was made in considerable quanti- ties during the Roman occupation of Britain, which nomi- nally extended from about the middle of the first century of the Christian era to the year 411. The Romans, it may here be remarked, were never themselves prominent as iron manu- facturers in any country occupied by them ; but, knowing the value of iron, they encouraged its manufacture wherever their arms were borne and the necessary conditions existed. The remains of iron works which were in existence and were operated during their stay in Britain are still pointed out. Dismissing all speculation concerning the origin of the first iron works in Britain, the remains of some of these works may well receive attention. They relate to a most interesting period in the history of the British iron trade. Large heaps of iron scoria, or cinder, as old as the Roman era, have been discovered in the Wealds of Kent and Sussex, in the hills of Somerset, and in the Forest of Dean in Gloucestershire; also at Bierley, a few miles from Bradford in York.^hire, and in the neighborhood of Leeds in the same county. There is also evidence that iron was made under the Romans in North- umberland, which is near Yorkshire; in Surrey, which ad- joins Kent and Sussex ; and in Monmouthshire, Hereford, and Worcester, which adjoin Gloucester. Except Bierley, Leeds, and Northumberland, all the places and districts named as having produced iron lie in the southeastern or southwestern parts of England, or within the ancient bound- aries of South Wales - " the country of the Silures." Next to Cornwall, where tin was obtained by the Phoenicians and their successors, these southern portions of the country would be most likely to be visited and influenced by foreigners be- fore the Roman invasion. Caesar described the island of Britain as being shaped like a triangle, with one of its sides looking toward Gaul. " One angle of this side is in Kent, whither almost all ships from Gaul are directed." The cin- der mentioned has been found almost invariably in connec- tion with Roman coins, pottery, and altars. A coin of Anto- ninus Pius, who lived in the second century after Christ, was found in the Forest of Dean in 1762, together with a piece of fine pottery. Coins of other Roman Emperors have been found m the cinder heaps of the Forest of Dean. In the cinder beds of Beauport, between Hastings and Battle, in Sussex, a bronze coin of Trajan has been found, and one of Adrian. These eniperors lived in the first and second centu- ries after Christ. Coins found in the cinder heaps of Mares- field, not far from Uckfield, have dates ranging from Nero to Diocletian, or from the year 54 to, the year 286 after Christ. In the cinder mounds of Sussex many specimens of pottery have been discovered, including black and red Samian ware. On one of these, the base of -a. patera, is the potter's mark, " Albvciani." One relic consisted of a bronze ligula, very thin and elastic, more than four inches long, in good preservation, and having an elegantly-shaped bowl. Altars erected by Jupiter Dolichenus, the protector of iron works, have been discovered in various places in association with the remains of such works. Much of the cinder has been found on the tops of hills or mounds, a circumstance which has led to the belief that bellows were not employed in producing a blast, but that the wind was relied upon to produce a draft sufficient to smelt the ore in charcoal bloomaries, some of which were mere excavations in the tops of hills, with covered channels leading to the hillside in the direction of the prevailing winds. This method of making iron is that which appears to have prevailed in Belgica at the same time. It is a curious fact that bloom- aries of similar form and adoption ^were in use in Derby- shire, for smelting lead, as late as the seventeenth century. Scrivenor mentions that similar fiu-naces were used by the Peruvians to smelt the silver ore of the country before the arrival of the Spaniards. Other air-bloomaries in England are supposed by Fairbaim and other writers to have been simple conical structures, with small openings below for the admission of air, and erected on high grounds that the wind might assist combustion. Iron is made to-day in Burmah without the aid of an artificial blast. The cinder found in England and Wales was very rich in iron ; in the Forest of Dean it was so rich and so abundant that for many years after its discovery, a few centuries ago, about twenty small charcoal furnaces were engaged in smelting it. Recent re- 22 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. aearchea by Mr. James Rock, of Hastings, in Sussex, throw much new light on the Roman and early British methods of manufacturing iron. Cinder beds, or cinder heaps, were formerly very numerous in East Sussex, and many of them still exist. The neighborhood of Hastings appears to have been a great center of the iron industry "from the earliest times." The cinder heaps yet remaining are large enough to be quarried, and contain many thousand tons of scoria, some of the heaps having large oak trees growing upon their summits. It was stated in 1G81, by Andrew Yarranton, in the second part of his England's Improvements by Sea and Land, that " within 100 yards of the walls of the city of Worcester there was dug up one of the hearths of the Ro- man foot-blasts, it being then firm and in order, and was seven foot deep in tae earth ; and by the side of the work there was found a pot of Roman coin to the quantity of a peck." The fo')t-blast here referred to must have been a leather bel- lows, with which the Romans and their Mediterranean neighbors were certainly acquainted. There is nothing im- probable in the supposition that the Romans while in Brit- ain used both the wind-bloomaries aud the foot-blasts. Strabo mentions the exportation of iron from Britain in his day. This was before the Romans had subdued the Britons, but after the influence of Roman civilization had been felt in the island. The emperor Adrian landed in Britain in the year 120, and in the following year there wa.s established at Bath, in Wiltshire, a great Roman military forge, or fahrica, for the manufacture of iron arms. This forge was close to the bloomaries in Somerset and the Forest of Dean, from which it was supplied with iron. That the manufac- ture of iron at this time and for some time subsequent was al- most wholly confined to the southern parts of England seems probable from a passage in Herodian, quoted by Smiles in his Industrial Biography, who says of the British pursued by the emperor Severus, in the year 208, through the fens and marshes of the east coast, that " they wore iron hoops round their middles and their necks, esteeming them as or- naments and tokens of riches, in like manner as other bar- barous people then esteemed ornaments of silver and gold." The Anglo-Saxons, who succeeded the Romans in the early part of the fifth century as the rulers of Britain, used iron weapons of war, and it is a reasonable supposition that they manufactured all the iron that was required for this purpose ; but their enterprise as iron manufacturers proba- bly extended but little further, although Bede speaks of the importance of the iron industry in his day, the beginning of the eighth century. The Anglo-Saxon monks frequently engaged in the manufacture of iron. Saint Dunstan, who lived in the tenth century, is said to have had a forge in his bedroom, and to have been a skilled blacksmith and metal- lurgist. During the ascendency of the Danes, and afterwards down to the accession of William the Conqueror in 1066, iron was made in the Forest of Dean and elsewhere, but in limited quantities. In the eleventh century the Anglo-Sax- on plow consisted of a wooden wedge covered with straps of iron ; to this the Normans added the coulter. The ship- builders of Edward the Confessor, the last king of the An- glo-Saxons prior to Harold, who lost the battle of Hastings, obtained bolts and bars of iron from the city of Gloucester. The antiquarian Camden, quoted by Scrivenor and others, states that " in and before the reign of William the Con- queror the chief trade of the city of Gloucester was the for- ging of iron ; and it is mentioned in Doomsdaxj-Book that there was scarcely any other tribute required from that city by the king than certain dicars of iron and iron bars for the use of the royal navy. The quantity required was thirty- six dicars of _ iron ; a dicar containing ten bars and one hundred iron rods for nails or bolts." Giraldis Cambrensis, who lived in the twelfth century, speaks of "the noble Forest of Dean, by which Gloucester was amply supplied with iron and venison." Nicholls, in The Forest of Dean, says that in the time of Edward the First, in the early part of the thirteenth century, the Free Miners of the Forest " applied for and obtained their ' cus- tomes and franchises,' which were granted, as the record of them declares, ' time out of miiid." In 1282, according to Nicholls, there were "upward of seventy -two forgece er- rantes, or movable forges, in the Forest, each of which paid a license of 7s. a year to the crown. Scrivenor states that during the period from the Conquest to the death of John, in 1216, iron and steel were imported into Britain from Ger- many and other countries. The Normans, however, con- tributed much to develop English iron and other resources. Green, in his History of the English People, says that one immediate result of the Conquest was a great immigration into England from the Continent. " A peaceful invasion of the industrial and trading classes of Normandy followed quick on the conquest of the Norman soldiery." Still the English iron industry made but slow progress. It is men- tioned by Scrivenor that there were but few iron mines in the north of England in the thirteenth and fourteenth cen- turies, and that, in the tenth year of the reign of Edward the Second, in 1317, iron was so scarce in that section and in Scotland that the Scots, " in a predatory expedition which they made in that year, met with no iron worth their notice until they came to Furness, in Lancashire, where they seized all the manufactured iron they could find, and carried it off with the greatest joy, though so heavy of carriage, and preferred it to all other plunder." The Scots at this time were in great need of iron, which they did not produce, but for which they were wholly dependent on the Continent and on the favor or ill-fortune of England. Alexander says that there were iron works at Kimberworth, in Yorkshire, in 1160, and Smiles gives an extract from a contract for sup- plying wood and ore for iron " blomes " at Kirskill, near Otley, in Yorkshire, in 1352. A recent writer, Mr. H. A. Fletcher, says that "the earliest record which has been found of iron-ore mining in Cumberland seems to be the grant of the forge at Winfel to the monks of Holm Cultram Abbey, in the twelfth century, which also included a mine at Egremont, by inference of iron, being in connection with a forge ; and Thomas de Multon confirms a gift to the same abbey de quartour duodenis mince fern in Coupland." Scrive- nor mentions one art related to the manufacture of iron which flourished in England from William to John, if the manufacture itself did not. The art of making defensive armor was brought to such perfection during the period mentioned that a knight completely armed was almost in- vulnerable." The history of the Crusades shows that the English were then very proficient in the manufacture of both arms and armor, as were the Turks who resisted them. Smiles says that it was the knowledge of the art of iron for- ging which laid the foundation of the Tiu-kish empire. By means of this art they made the arms which first secured their own freedom and then enabled them to extend their power. Edward the Third, who reigned from 1327 to 1377, did much to advance the manufacturing industries of Eng- land. He protected domestic manufactures by legislation which restricted the importation of foreign goods, and he encouraged the immigration into England of skilled work- men from the Continent. The use of iron was greatly ex- tended in his reign, and its manufacture was active in Kent and Sussex and in the Forest of Dean. Nevertheless the domestic supply did not meet the wants of the people. Scrivenor says : " By an act passed in the twenty-eighth year of Edward the Third no iron manufactured in England, and also no iron imported and sold, could be carried out of the country, under the penalty of forfeiting double the quantity to the king ; and the magistrates were empowered to regu- late the selling price and to punish those who sold at too dear a rate, according to the extent of the transaction." This act appears to have remained in force long after Ed- ward's death. Smiles quotes from Parker's English Home the statement that in Edward the Third's reign the pots, spits, and frying-pans of the royal kitchen were classed among the king's jewels. The methods of manufacturing iron which were followed in England in the thirteenth and four- teenth centuries were still of a slow and restricted character, although greatly advanced beyond those which existed in the days of the Romans. The English were yet mainly de- voted to agriculture, and were not even good farmers, "their implements of husbandry and their methods of cultivating the soil being equally rude. AVool was their great staple, and this was largely exported to the Continent, where it was manufactured into finer fabrics than the English were capa- ble of producing. Iron was often scarce and dear, because the domestic supply was insufficient. The iron industry on the Continent was at this period in a much more advanced stage of development, and most of the Continental iron was also of a better quality than the English iron. Professor THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 23 James E. Thorold Rogers, in his History of Agriculture and Prices in England, gives many interesting details concerning the iron industry of England in the thirteenth and four- teenth centuries. Iron was made at this time in Tindale, in Cumberland ; at or near the city of Gloucester ; and in Kent and Sussex. It was, doubtless, made in many other places. Steel is frequently mentioned, the first reference to it being in 1267. It is not clear whether all the steel used in England during the period under consideration was im- ported, but most of it certainly was. Much of the iron used was imported, frequent mention being made of Spanish and Osemond iron. Osemond steel is also frequently men- tioned. In 1281 Norman iron, of a superior quality, was bought for the Newgatejail. Spain appears to have been the principal source of the supply of imported iron. It is probable that the Osemond iron and steel were imported from Sweden and Norway, the osmund furnace having been in use in these countries and in Finland about this time. Iron and steel were generally bought at fairs and markets. The Spaniard attended the Stourbridge fair with his stock of iron, and iron from the Sussex forges was sold at the same place. The prices of iron and steel were usually lower near the sea and at the great towns in the south of England than elsewhere. Among the farmers it was customary for the bailiff to buy the iron that might be needed on the farm, and to employ a smith to make the horseshoes and nails and to iron the implements. Steel appears to have been but little used by the farmers. Rogers says that " no direct in- formation about the seasons, scanty as it is, is so frequent as that found in the notices which the bailiff gives of the great cost of iron." Iron for the tires of wagons and carts was so dear that many wheels were not ironed. Iron wa, sold in several forms. The iron made at the works at Tendale was sold in the form of blooms in 1333 and subsequently. Blooms were sold as early as 1318, but the place of their manufacture is not given. Slabs and bars of iron are also mentioned, but the commonest form in which iron was sold was the piece, twenty-five pieces con- stituting a hundred-weight. " The small fagot of iron, cash bar of which weighed a little over four pounds, was kept by the bailiff, and served, as occasion required, for the various uses of the farm." The Tendale bloom weighed about one hundred pounds, and was sold at a much lower price than other forms of iron. It was, of course, unrefined iron. Steel was usually sold by the garb, or sheaf, each sheaf con- taining thirty small pieces, the exact weight of which is not stated. Rogers supposes that the pieces of iron and steel were of about the same weight, and that the price of steel was about four times the price of iron. Occasional mention is made of steel, which was sold by the cake ; it was " a little higher in value and much greater in weight than the garb." Plow-shoes, which appear to have been iron points to wooden shares, are of frequent occurrence in the accounts quoted by Rogers, and so are lath and board nails, clouts and clout nails, and horseshoe and horseshoe nails. Horseshoes were not purchased from the smiths until about the close of the fourteenth century ; down to that time the smiths were supplied by the bailiffs with the iron for their manufacture. " Hinges, staples, and bolts were occasionally manufactured by the village smith, from iron supplied him by the bailiff, but were more frequently bought at the market-town or fair." Iron mattocks and hoes were used in the fourteenth century, as were iron sickles, scythes, and hay and other forks. Domestic utensils of iron were not in general use; pots and other articles, used in the kitchen were usually of brass. A brass jug and pan are mentioned in 1272 ; a brass jug and basin in 1360; and two brass pots in 1383. Such iron utensils as were in use appear to have been made of wrought iron. Tinware was certainly unknown. Hammers, axes, pickaxes, and other tools were made of iron. Iron hoops were used for buckets and grain measures in the_ four- teenth century ; " the iron-bound bucket that hung in the well " had an existence as early at least as 1331. Passing ti other authorities we find that arrow-heads were manu- factured at Shefiield in the thirteenth century, and that knives were manufactured at the same place in the fourteenth century, as they are to-day. Chaucer, who wrote his Can- terhw-y Tales near the close of the latter century, in describing the miller of Trompington, says that " a Schefeld th;vytel bar he in his hoso." Birmingham was then, as it is now, a center of the manufacture of swords, tools, and nails. Smiles pays a deserved compliment to the English smith, to whom England owes so much of her greatness. In Anglo- Saxon times his person was protected by a double penalty, and he was treated as an officer of the highest rank. The forging of swords was then his great specialty. ^V'illiam the Conqueror did much to exalt the art of the smith, to which he was much indebted for his victory at Hastings, his soldiers being better armed than those of the Saxon Harold. At the close of the fourteenth century the smith had fairly entered upon the brilliant career which has since contributed so much to the industrial pre-eminence of England. Mr. Picton, in a recent address, says : " Iron work at this period was of the most elaborate description. The locks and keys, the hinges and bolts, the smith's work in gates and screens, exceed in beauty anything of the kind which has since been produced." England appears to have first used cannon in field warfare at me battle of Cressy and the siege of Calais in the year 1346, when the bowmen of Edward the Third were drawn up "in the form of a harrow," with small bombards between them, '' which, with fire, threw little iron balls to frighten the horses." These bombards were made of " iron bars joined together longitudinally, and strengthened by exterior hoops of iron." France, however, according to Scrivener, appears to have used cannon as early as 1338, in which year it is reported that the government had an account with Henry de Faumichan " for gunpowder and other things necessary for the cannon at the siege of Puii Guillaume." But the archers of the English army continued to be the main reliance of the English kings for many years after Edward's first use of the bomljards, and on the Continent gunpowder did not come into general useuntil the sixteenth century At the battle of Pavia, in 1525, the match-lock was first used in an effective form, and it was then fired from a rest. During the fifteenth and sixteenth centuries the manu- facture of iron in England was greatly extended. The en- couragement which Edward the Third and his immediate successors had given to the immigration of foreign workmen into England had resulted in the settlement in the country of many Flemish and French ironworkers, whose skill was eagerly sought by many landed proprietors, who entered with zeal into the manufacture of iron. Sussex became the principal seat of the industry ; it possessed both ores and forests, the latter supplying the necessary fuel, and small streams furnished the requisite power to drive the "iron mills." As one marked result of the extension of the iron manufacture in England, the dependence of the country upon foreign sources of iron supply was greatly lessened ; so much so that in 1483 an act was passed prohibiting the importation of gridirons, grates, iron wire, knive'^, hinges, scissors, and many other manufactured articles of iron or steel which competed with like articles of domestic pro- duction. Landrin, however, states that fine tools were still imported from Bilbao, in Spain, as late as 1548. About the beginning of the fifteenth century, blast furnaces were in- troduced into England from the Continent, and this event gave a fresh impetus to the iron industry of Sussex, Kent, Surrey, and other sections. Prior to the introduction of blast furnaces, all the iron that was manufactured in England was produced in forges or bloomaries directly from the ore, and was, consequently, when finished, wrought or bar iron. Little of it was cast iron. These bloomaries were doubtless modeled after the German stuckofen during the latter part of the period antecedent to the introduction of the blast furnace. The exact date of the erection of the first blast furnace in England is unknown, but this event must have followed closely upon the introduction of tho Jlussofen, or blauofen, on the Continent in the fourteenth century. The English antiquarian writer, Mr. A. Lower, in his account of the iron industry of Sussex, mentions iron castings which were made in Sussex in that century, but these may have been pro- duced by the stuckofen, or high bloomary. Mushet supposes that cast iron was made in the Forest of Dean in 1540, and he says that the oldest piece of cast-iron he ever saw bore the initials "E.R." and the date "1555." Camden, who lived between 1551 and 1623, says that " Sussex is full of iron mines everywhere, for the casting of which there are furnaces up and down the country, and abundance of wood is yearly spent." He also says that the heavy forge-ham- 24 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. mers, which were mostly worked by water-power, stored in hammer-ponds, "beating upon the iron, fill the neighbor- hood round about, day and night, with continual noise." About 1G12, John Norden, quoted by Smiles, stated in a published document that there are, or lately were, in Sussex neere 140 hammera and furnaces for iron.'' At this time Sussex is supposed to have produced one-half of all the iron made in England. The best of the Sussex furnaces did not, however, at this time produce more than eight or ten tons of pig iron in a week. At Pontypool, in Mon- mouthshire, a blast furnace was built in 1565 by Capel Hanbury, to smelt the Eoman cinder which was found there, and about the same time several furnaces were built in the Forest of Dean to rework the cinder which was found there in large quantities. The first furnaces built in the Forest were 15 feet high and six feet wide at the boshes. The fur- naces at work in 1677 were blown with bellows 20 feet long, driven by " a great wheel " turned by water. Smiles says that " the iron manufacture of Sussex reached its height toward the close of the reign of Elizabeth, when the trade became so prosperous that, instead of importing iron, England began to export it in considerable quantities in the shape of iron ordnance." This ordnance was cast, and the time referred to was the close of the sixteenth century. Bronze cannon had succeeded the bombards about the beginning of that century, and as early as 1543 cast-iron cannon were made in Sussex, at a place called Bucksteed, by Ealph Hoge, who employed a Frenchman named Peter Baude as his assistant. " Many great guns " were subse- quently cast in Sussex, John Johnson and his son Thomas Johnson, the former a servant of Peter Baude, being promi- nent in their manufacture. John Johnson is said to have " succeeded and exceeded his master in this his art of casting ordnance." About 1595 the weight of some of the cannon cast in Sussex amounted to three tons each. At a later period, in 1648, Bishop Wilkins, in his Mathematicall Magick, says that " a whole cannon weighed commonly 8,000 pounds, a half cannon 5,000, a culverin 4,500, a demi-culverin 3,000. A whole cannon required for every charge 40 pounds of powder and a bullet of 64 pounds." But a still greater honor is claimed for Peter Baude than that with which his name is above associated. Stow, in his Chronicle, quoted by Froude and Smiles, says that two foreign workmen, whom Henry the Eighth tempted into his service, first invented shells. " One Peter Baude, a Frenchman-born, and another alien called Peter Van Cullen, a gunsmith, both the king's feed men, conferring together, devised and caused to be made certain mortar pieces, being at the mouth from 11 inches unto 19 inches wide, for the use whereof they caused to be made certain hollow shot of cast iron, to be stufied with fire- work or wild-fire, whereof the bigger sort for the same had screws of iron to receive a match to carry fire kindled, that the fire-work might be set on fire for to break in pieces the same hollow shot, whereof the smallest piece hitting any man would kill or spoil him.'' There is deposited in the library of the Historical Society of Pennsylvania, at Phila- delphia, a stone cannon-ball, one of twenty -three which are said to have been fired at the boat in which Queen Mary and Douglass made their escape from Loch Leven in 1568. It is about 8 inches in diameter, is round, but not smooth, and weighs probably 15 pounds. The exportation of cast-iron cannon became so extensive that complaint was made that Spain armed her ships with them to fight the ships of England, and the trade was for a time prohibited. Hume says that "shipbuilding and the founding of iron cannoa were the sole manufactures in which the English excelled in James the First's reign," from 1603 to 1625. In 1629 the crown ordered 600 cannon to be cast for the States of Holland. England, however, continued to import from the Continent, particularly from Sweden, Ger- many, and Spain, some of the finer qualities of iron and considerable stsel. Before 1568 all iron wire that was made in England was "drawn by main strength alone," according to Camden. The Germans, says this author, then intro- duced into the Forest of Dean and ebewhere, the art of drawing it by a mill. Prior to the year mentioned the greater part of the iron- wire and ready-made wool-cards used in England was imported. Scrivenor quotes Williams' History of Monmouthshire as authority for the statement that the iron and wire works near Tint«rn Abbey wera erected by Germans. There can be no doubt that the iron industry of England in the fourteenth, fifteenth, and sixteenth centuries was greatly indebted to the inventive genius and mechanical skill of the Continental nations. Near the close of the six- teenth century there was introduced into England an inven- tion for slitting flattened bars of iron into strips, called nail-rods. This invention was the slitting mill. Scrivenor, upon the authority of Gough'a Camden, states that Godfrey Bochs, of LiSge, Belgium, set up at Dartford, in 1590, " the first iron mill for slitting bars." Dartford is a market town in Kent. Another story associates the name of " the founder of the Foley family, who was a fiddler living near Stour- bridge," with the honoi- of introducing the first slitting mill into England, a knowledge of which he surreptitiously gained by visiting Swedish iron works and fiddling for the workmen. Percy states that Eichard Foley, the founder of the Foley family at Stourbridge, who was first a seller of nails and afterwards a forgemaster, died in 1657, at the age of 80 years. In 1606 and 1618 patents were granted in Eng- land to Sir Davis Bulmer and Clement Dawbeny, respect- ively, for cutting iron into nail-rods by water-power. Th« slitting mill, by whomsoever invented and perfected, greatly benefited the nail trade of England. Birmingham became the center of this industry, and it was htre, probably, Aat women and girls were first regularly employed in England in the manufacture of nails. Hutton, quoted by Dr. Young in his Labor in Europe and America, says that in 1741 they were thus employed in the numerous blacksmiths' shops of Birmingham, " wielding the hammer with all the grace of their sex." They were called " nailers." Machinery was not applied to the manufacture of nails until near the close of the eighteenth century. The art of tinning iron was first practiced in Bohemia, and about 1620 it was introduced into Saxony. These countries for a time supplied all Europe with tin plates. In 1681 Andrew Yarranton asserted that tin plates were then made in England through his means, he having learned the art of making them in Saxony in 1665. The exact date of the introduction of the manufac- ture of tin plates into England by Yarranton is said to have been 1670. The first attempt to establish the new industry in England was made at Pontypool, in Monmouth- shire. Scrivenor states that in 1740 the art " was brought to considerable perfection in England." But, notwithstand- ing the progress which had been made in the development of the English iron trade, especially in the reigns of Henry the Eightli, Elizabeth, and James the First, an influence was at work which was destined to weigh heavily for a hundred and fifty years upon all further development. This was the growing scarcity of wood for the use of the forges and fur- naces ; mineral fuel, or pit-coal, not yet having come into use as a substitute for wood. The forests of England in the ironmaking districts had been largely consumed by " the voragious iron mills," and there were "loud complaints that the whole community would be unable to obtain fuel for domestic purposes if this denudation was persisted in. In response to these complaints we learn from Scrivenor that, in 1558, the first year of the reign of Elizabeth, an act was passed which prohibited the cutting of timber in certain parts of the country for conversion into coal or fuel " for the making of iron," special exception being made of the Weald of Kent, certain parishes, and " high in the Weald of the county of Surrey." In 1581 a further act to prevent the destruction of timber was passed, which set forth the increas- ing scarcity of timber for fuel in consequence of " the late erection of sundry iron mills in divers places not far distant from the city of London and the suburbs of the same, or from the downs and sea-coast of Sussex," and provided that no new iron works should be erected within twenty-two miles of London, nor within fourteen miles of the river Thames," nor in certain parts of Sussex near the sea ; nor should any wood within the limits described, with certain exceptions, be converted to coal " or other fuel for making of iron." A more sweeping act was passed in 1584, which prohibited the erection of any new iron works in Surrey, Kent, and Sussex, and ordered that no timber one foot square at the stub should be used as fuel " at any iron work.'^ It is said that these restrictions were not very rigidly enforced, but they served to narrow the limits within which the manu- facture of iron could be prosecuted. About the middle of the seventeenth century the iron industry experienced THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 25 another serious check through the civil commotioa which then prevailed. Many of the forges and furnaces in Sussex and m the south of Wales were then destroyed, and not again rebuilt. Soon after the Restoration all of the royal iron works in the Forest of Dean were destroyed, owing to the scarcity of timber. There was then much apprehension felt whether the Forest of Dean should fail to supply timber for the royal navy. Owing to the scarcity of timber many of the iron works in Kent, Sussex, Surrey, and in the north of England were " laid down " in 1676, when England's supply of iron was largely derived from " Sweadland, Flan- ders, and Spain." Dudley, in his Metallum Martis, says that in 1644 there were nearly 20,000 smiths of all sorts within ten miles of Dudley Castle, in Staffordshire, and that there were also " many iron works at that time within that circle decayed for want of wood (yet formerly a mighty woodland country)." Notwithstanding these severe checks, the iron industry of England bravely refused to be utterly destroyed, and as late as 1720 it was still second in importance to the manufacture of woolen goods. In 1740, however, only 59 furnaces were left in all England and Wales, and their total production was but 17,350 tons of pig iron, or about 294 tons for each furnace. AH of the mrnaces may not have been in blast, as it has been proved that, ten years later, in 1750, each of the charcoa,l furnaces of Monmouthshire produced 24 tons of iron in a week. Ten of the furnaces existing in 1740 were in Sussex, but in 1788 only two of these were left. In 1740 there were ten furnaces iii the Forest of Dean. Pig iron is still made in this district, but with coke as fuel. The iron industry of Kent and Sussex is now extinct. The last furnace in the Weald of Sussex, at Ashburnham, was blown out in 1829. During the seventeenth and eighteenth cen- turies England imported iron largely from Sweden, and in the latter century both Russia and the American colonies contributed to her supply. The scarcity of timber for fuel for blast purposes in England continuing, a proposition was made in the British Parliament in 1737 to bring all pig iron from the British colonies in America ; and in 1750, to facili- tate the importation of pig iron from these colonies, the duty which had previously been imposed for the protection of British ironmakers was repealed. At this time the busi- ness of manufacturing iron in some parts of Great Britain was conducted upon such primitive principles that both charcoal and iron ore were carried to the furnaces of Mon- mouthshire on the backs of horses. Soon after the passage of the act of 1750, mineral coal in the form of coke came into general use in the manufacture of iron in England, and the iron trade of that country and of Wales at once revived, while that of Scotland may be said to have been created by the new fuel. The first successftil use of mineral coal in the blast furnace was by Abraham Darby, of Shropshire, at his furnace at Coalbrookdale, in 1735. This coal .was coked. In 1740 a coke furnace was built at Pontypool, in Monmouth- shire. In 1796 charcoal furnaces had been almost entirely abandoned in Great Britain. The manufacture of pig iron with mineral coal was greatly facilitated by the invention of a cylindrical cast-iron bellows by John Smeaton, in 1760, to take the place of wooden or leather bellows, and by the improvements made in the steam engine by James Watt about 1769 — ^both these valuable accessions to blast-furnace machinery being used for the first time, through the influ- ence of Dr. Roebuck, at the Oarron iron works in Scotland. The effect of their introduction was to greatly increase the blast, and, consequently, to increase the production of iron. The blast, however, continued to be cold air at all furnaces, both coke and charcoal, and so remained until 1828, when James B. Neilson, of Scotland, invented the hot-blast. These and other changes in the manufacture of pig iron were speedily followed by equally important innovations in the manufac- ture of finished iron. In 1783 Henry Cort, of Gosport, Eng- land, obtained a patent for rolling iron into bars with grooved iron rolls, and in the following year he obtained a patent for converting pig iron into malleable iron by means of a puddling furnace. These patents did not relate to abso- lutely new inventions in the manufacture of iron, but to important improvements on existing methods, which had not, however, been generally employed. Mineral- coal was now used in the puddling furnace as well as in the blast iiirnace : it had long been used in refineries. To the im- provements introduced by Cort the iron trade of Great Britain is greatly indebted. The refining of pig iron in forges and its subsequent conversion into bars and plates under a tilt-hammer virtually formed the only method of producing finished iron down to Cort's day, both in Great Britain and on the Continent, and it was wholly inadequate to the production of large quantities of iron of this char- acter. With mineral fuel, powerful blowing engines, the puddling furnace, and grooved rolls Great Britain rapidly passed to the front of all ironmaking nations. The inven- tion of crucible cast steel originated with Benjamin Hunta- man, an English clockmaker, about the middle of the eighteenth century, and not only ShefiSeld, the principal seat of the manufacture of fine cutlery, but all England as well, has greatly profited by his discovery. We now turn from the iron industry of England to thai or Wales, Ireland, and Scotland. In the sixteenth century, owing to the scarcity of timber in England, some of the ironmasters of Sussex emigrated to Glamorganshire, in South Wales, where they founded the iron works of Aberdare and Merthyr Tydvil, and other iron works. Remains of the works in the Aberdare valley still exist, and Merthyr Tydvil is the centre of a great iron industry to-day. In 1770 the first coke furnace in South Wales was built at Cyfarthfa. In 1788 there were six coke furnaces in South Wales. Cort's inventions were promptly appropriated by Welsh ironmas- ters. According to Scrivenor, iron-ore mines were opened in Ireland by the English who settled in the country during the reign of Elizabeth, and iron itself was extensively manufactured in Ireland by the English during the reign of James the First and afterwards. The most ex- tensive works were in the provinces of Munster, Con- naught, and Ulster, and in the counties of Queens, Kings, and Thomond. In some instances iron ore was taken from England to the sea-coast of Ulster and Munster, in Ireland, the latter country then abounding in forests, but generally Ireland supplied both the ore and the fuel. Most of the iron produced was in bars from forges, but ordnance, pots, and other articles were also cast in foundries or furnaces. The rebellion of 1641 put an end to many of the English iron works in Ireland, some valuable works in the county of Mayo escaping. In 1660 Sir William Petty established ex- tensive iron works in the county of Kerry, which continued in operation until the middle of the eighteenth century, when they were stopped in consequence of the scarcity of timber. In 1672 this gentleman stated that one thousand tons of iron were then made in Ireland. Near the close of the seventeenth century an act of the British Parliament remitted the duties on bar iron and on iron slit and ham- mered into bars imported from Ireland, the manufacturing industries being then greatly depressed. The iron industry of Ireland survived until the reign of George the Second, in the early part of the eighteenth century, when it came to an end in consequence of the scarcity of timber, the compe- tition of English iron, and the unsettled condition of the country. An efibrfc was made to revive it at the close of the century, but it met with slight success. In 1840 there were no iron works in Ireland " going on." In 1857 there was but one furnace yet standing in Ireland. There are now no iron works in the country. Irish ores were imported into the United States in 1879 and 1880. It has already been stated that iron was very scarce in Scotland in the closing centuries of the Middle Ages, Scotland obtaining all her supply of iron at that time from outside her borders. The Scotch, however, were noted during the period mentioned for the excellence of their swords and armor, the former vying in temper with those of Toledo and Milan. In Sir Walter Scott's story of The Fair Maid of Perth, the events of which are supposed to have occurred during the last years of the fourteenth century, the hero, Henry Gow, is an armorer — a forger of swords, and bucklers, and coats-of- mail. In 1547 an English chronicler wrote that " the Scots came with swords all broad and thin, of exceeding good temper, and universally so made to slice that I never saw none so good, so I think it hard to devise a better." Scot- land had no noteworthy iron-producing industry of her own until the middle of the eighteenth century. It is conjec- tured, however, that her ancient inhabitants may have made iron in very small quantities, as pieces of iron slag were discovered in 1861 in the ruins of Celtic fortified towns in 26 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. the Cheviot hills, on the border between England and Scot- land. Mr. Richard Meade informs us that the earliest information bearing on iron smelting in Scotland dates from 1750, in which year the first furnace was erected at Bunawe, in Argyleshire, by a Mr. Ford. In this furnace the blast was driven by water-power obtained from the' river Awe, the ore used being brought from Ulverstone, in Lancashire, while charcoal was exclusively used as fuel. The Bunawe furnace, now known as the Lome, is still in existence, although not in operation. Previous to 1788 a similar fur- nace was erected at Goatfield, also in Argyleshire. In 1760 the first blast furnace at the celebrated Carron iron works, in Stirlingshire, was put in operation, where for some time charcoal was used. The manufacture of carronades was long a specialty of the Carron iron works. Mineral coal was soon substituted for charcoal at this furnace, and from that time forward the iron industry of Scotland was rapidly developed. In 1788 there were six coke furnaces in Scot- land and the two charcoal furnaces of Bunawe and Goatfield. The following statistics will show how rapidly the manu- facture of pig. iron in Great Britain has grown in the last hundred years. In 1788 there were 77 furnaces in England and Wales, and 8 furnaces in Scotland, the total production of which was 68,300 tons. Of the whole number of furnaces, 26 used charcoal and 59 used coke. The imports of iron by Great Britain in this year amounted to about 15,000 tons. In 1796 there were 104 furnaces in England and Wales, producing 107,797 tons of iron. In Scotland there were 17 furnaces, producing 16,086 tons. In 1806 there were 173 furnaces in Great Britain, producing 258,006 tons. In 1820 there were 285 furnaces, producing 400,000 tons. In 1827 the production was 690,500 tons. In 1840 it was 1,396,400 tons. In 1854 it rose to 3,069,838 tons. This quantity was then estimated to be fully one-half of the world's production of pig iron. The same proportion was steadily maintained by Great Britain for manyyears, butit is now lost. In 1857 Great Britain's production of pig iron was 3,659,477 tons, smelted from 9,573,281 tons of ore in 628 blast furnaces, of which 333 were in England, 170 in Wales, 124 in Scotland, and 1 in Ireland. In 1872 the product was 6,741,929 tons. In 1880 the production of pig iron by Great Britain was 7,749,233 tons. For several years there have been preserved only 4 charcoal furnaces in Great Britain, and these have produced but little iron. The whole number of blast fur- naces in Great Britain in 1880 was 967, only 567 of which were in blast. The eighteenth century marked a new era in many branches of manufacturing industry in which the British people have become prominent. It was the era of machinery, which then began to receive general attention as a substitute for hand labor. This era gave to the people of Great Britain the manufacture of Indian cotton goods, and it largely increased their woolen manufacture and assisted to develop their iron manufacture. It was in the eighteenth century that Great Britain, in consequence of her quick ap- preciation of the value of labor-saving machinery, became the first manufacturing nation in the world; in the pre- ceding century four-fifths of the British working people were still farmers or farm laborers. During the latter part of the eighteenth century and the whole of the nineteenth century down to the present time no other country has occupied so conspicuous a position as Great Britain in the manufacture of iron and steel. Spain and Germany had in turn led modern nations in the production of these essentials in civilization, but Great Britain passed to the head when she began to make pig iron with the aid of mineral fuel and her powerful blowing engines. She had abundance of iron ores and bituminous coal, and her people had applied to the utilization of these products their indomitable energy and newly-developed inventive genius. France, Germany, Belgium, and other Continental countrier. might have sub- stituted mineral coal for charcoal, invented the puddling furnace, or perfected the rolling mill and the steam engine, but none of them did. To England and also to Scotland is the world indebted for the inventions that gave a fresh impetus to the manufacture of iron in the eighteenth century; and it is also indebted to the same countries for most of the inventions and changes of the present century which have further developed the manufacture of iron and increased the demand for it, and which have almost created the manufac- ture of steel. Stephenson, the Englishman, improved the locomotive in 1815, and in 1825 the first passenger railroad in the world was opened in England, Stephenson's locomo- tive hauling the trains. Neilson, the Scotchman, invented the hot-blast in 1828 ; Crane, the Englishman, applied it to the manufacture of pig iron with anthracite coal in 1837 ; Nasmyth, the Scotchman, invented the steam hammer in 1838 and the pile driver in 1843 : and Bessemer, the Eng- lishman, invented the process which bears his name, and which is the flower of all metallurgical achievements. The Siemens regenerative gas furnace, which has been so exten- sively used in the manufacture of iron and steel, is also an English invention, although the inventors, Charles Willianr and Frederick Siemens, while citizens of England, are natives of Hanover, in Germany. That Great Britain did not at first seek to extend the influence of her new light and life to other countries, but by various acts of Parliament sought to prevent the introduction of her inventions and the emigra- tion of her skilled artisans into those countries, is not here a subject for comment; nor is the strict adherence of Great Britain to a policy of protection to home industries by cus- toms duties during many centuries and down to almost the middle of the present century a subject of comment. Both measures undoubtedly fostered the growth of British manu- facturing industries, and in the end the world was benefited by British inventions, which found their way across the British channel and the Atlantic ocean, and by the example of British energy and British enterprise in the utilization of native manufacturing resources. — — Compiled from James 31. Swank^s " Eeport on Iron und Steel, Tenth Census of the a. S." HISTORICAL SKETCH OF SILVER. SILVER had already taken a high rank among the me- tals in the days of Abraham, and even at that early period we find it playing the same part in the economy of nations that gives it so much importance to us of the present day. It was a standard of value, and a medium for the transaction of exchanges when first mentioned ; this is still its chief function, and will probably continue to be as long as mankind buy and sell. In the time of the patriarchs it would appear that money, as we understand it, was already but partially in use; since sometimes we read of Abraham receiving so many pieces of silver, and at others that he weighed out a certain number of shekels of the same metal. Hence we may conclude that the plan of employing a piece of determined size in commercial transactions, was only then superseding the more ancient system of determining, by a separate weighing, the amount of silver necessary in each exchange. Whether these^i'eces were stamped with a device or not we have no means of knowing, but that silver as well as gold was at that period wrought into various household utensils and articles of ornament, we have abun- dant evidence in the book of Genesis. There is a passage in the account of a purchase of the field of Hebron which, in investigating the ancient history of silver, demands more than our passing attention. It is the statement that the silver weighed by Abraham was current monaj with the merchants. This leads to the conclusion that various sorts of silver were already recognized, and that the merchants possessed the knowledge necessary to distinguish between the current and the uncurrent, or the pure and alloyed ; in short, that the rudiments of assaying were practically understood. Numismatologists concur in considering the oldest stamped money that has come down to us to be that made from silver by the ^ginetans, and in the Parian chronicle the origin of coined money is ascribed to that nation, the date of its discovery being placed in the time of Phidon, who reigned 895 y'eaj-s before the Christian era. Homer's heroes carried weapons ornamented with silver, and that bard even mentions the locality from whence the precious substance was brought ; but where to search upon modern maps for the region thus made known by name will probably continue to be, as it now is, an unsolved problem for the antiquary. It is generally supposed that the silver possessed by the nations along the eastern end of the Mediterranean came from some country to the north or east, THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 27 and Chaldea, Bucharia, and the mountains belonging to the modern Russian Empire have been mentioned as probable localities. That silver was abundant in early historical times is clear from the vast quantities that were obtained by conquering armies in the form of plunder, ransom, or tribute. Thus Rawlinson has found on a Babylonian mon- ument an inscription stating that the city of Damascus, after its conquest by Phuluk, was adjudged to pay a tribute of - 2300 talents of silver, beside gold, copper and brass ; and if it were possible to credit the figures of Pliny, Cyrus obtained from his conquests in Asia an amount of silver equivalent to 7,720,000,0002. ; while according to Herodotus, the nations subdued by the Persians, excepting the Indies and Antioch, paid a yearly tribute in silver of about 3,000,0002. The metallic treasures of the East, won from the degener- ate successors of Ale:Kander by victorious Roman warriors, flowed into the lap of the Mistress of the World, where they joined the precious streams coming northward from the cofiers of the sumptuous Carthaginians. For fifty years after the second Punic war, the conquered city paid an annual tribute of 9000 pounds of silver. This treasure was partly collected in the hands of private individuals or families, and partly in the public treasury. The latter i3 said to have received, during the nine years following the second Punic war, 112,000 pounds of silver from Spain alone. The spectacles of the Emperors were often accom- panied by the most lavish display of metallic wealth. To such an extent was this carried, that Caligula, we are told, loaded 124,000 pounds of silver upon the armor and weapons that he caused to be brought into the circus. Indeed, the extraordinary accounts given by various classic authors of the amount of silver collected in ancient Rome, would often have the appearance of gross exaggeration, were we not aware that the treasures of the world gathered for generations within her walls; and had we not incontes- table statistics of the products of a region that in modern times has yielded treasures far exceeding those possessed by Rome even in the most brilliant period of her decadence : — I allude to the meridional countries of the new world, which will claim our attention presently. The localities from whence the ancients obtained their silver seem to have been quite numerous. The mines of Laurium, which Eschylus calls the "fountain of silver treasure of the earth," were possesssed by the Athenians: their production appears to have largely decreased in early days, so that Strabo speaks of them as exhausted. Diodorus relates that the shepherds on the Pyrenees having set fire to their forests, the silver in the earth was fused and ran upon the ground in numerous streams, and that the natives not knowing the value of the extraordinary substance thus springing from the mountains, exchanged it with the Phoenician traders for wares of small value. Pliny writes, what we may believe with less exten- sion of our credulity that in his time the miners of Spain sought silver in the bowels of the earth a mile and a half beyond the light of day. The Carthaginians, according to Polybius, had 40,000 men engaged in the Spanish mines, and the Moors are known to have continued the search that had in turn yielded so largely for nearly alf the great nations of antiquity; yet when in 1571, the German family of Fugger re-opened the deserted veins, they succeeded in the space of thirty-six years in taking out more than 3,000,0002. worth of the precious metal. Thus from the most remote periods, strangers have sought in Spain the silver which the natives have allowed to remain dormant in the earth. Nor is this rule at present reversed, since by royal decrees of 1825 and 1849 the mines were thrown open to foreign enterprise, and several English companies are now explor- ing districts that were wrought in the grey antiquity, perhaps for the merchants of Tyre. When Rome lost her proud precedence, her stores of silver and gold moved east- ward toward the seat of the Byzantine Government, and the dark centuries that then followed were not of a character to favor mining or to preserve records of metallic discovery. German fable carries the first opening of some of the middle European mines back to the seventh century. In the tenth century, according to records that appear quite re- liable, silver mines existed in Bohemia ; and in the twelfth century, Tyrolese mines were worked. From Bohemia min- ing knowledge and the spirit of mining enterprise spread to the countries toward the north and west ; in the tenth century mines of the Hartz were discovered, and in the twelfth those of Saxony were opened. The mines of England, France, Hungary, and Norway were already in operation when the discovery of the new world, with its febulous stores of metallic wealth, opened a new epoch in the history of the precious metal. It was the fortune of Spain to reach this land of gold and sUver first, and to appropriate to herself not only the treasure in possession of the natives, but what was far more important, the districts where the strata still held untold millions. The Incas of Peru drew their silver from the mines of Porco, but without any of those ingenious and expensive contrivances that miners of the present day bring to their aid. They sank no shafts, but simply drove adits horizontally upon the vein, and worked out the ore that happened to lie above the water level. Their processes of reduction were as primitive as their methods of mining. They had no idea of the virtues of quicksilver — a metal not at all rare in their land — ^but fused the ore in rude fujmaces, so built upon the mountain side that the prevailing winds fanned the wasteftil flames. No money circulated in their empire, but the precious metals were lavished upon the walls of their temples, so that the polished surfaces threw back brilliant images of their governing deities, the sun and the moon. The palaces of the Inca nobility were georgeously decorated. To such an extent was this carried, that it is recorded that the soldiers of Pizarro found, near Cuzco, three beams of silver each twenty feet long, one foot broad, and two to three inches thick, which were intended to form ornaments for a country seat then in process of erection. The unfortunate prince Atahulapa, when made a prisoner by the conquerors, sought to obtain his liberty by offering rooms full of the precious metals as a ransom. The ornaments torn from the temples of the various deities, and removed from the royal palaces by the loyal subjects who did not foresee the dark deed of treachery that awaited them , amounted to a value at that period of 3,5000,0('02. of gold and 51,610 marks,* or about 25,805 pounds of silver. But the rapacious conquerors of the new world, found but a comparatively small portion of the precious metals that their victories brought them into possession of, in the hands of the inhabitants. The veins of silver, discovered and undiscovered, held a treasure that could scarcely have been exceeded by their wildest dreams. The silver pro- duction of the world is at the present time largely concen- trated in the western hemisphere, and the richness and abundance of the ores of the Cordilleras and Andes promise a prize so tempting that almost continual revolution, and consequent insecurity of property, combined with the many difficulties which nature has thrown in the way, cannot prevent both native and foreign companies from pushing forward their precarious but often highly remunerative operations. Peru is considered by Whitney to exceed all other countries in the vastness of its silver deposits, but the desolate region of snow and rock, in which some of the : mines are situated, strikes even the most hardy miner with terror. The mines of Potosi are worked at a height even greater than that of Mont Blanc. Among the richest silver mines in the world is that of Pasco, which was discovered by accident ^in 1630. It is so miserably worked that at one time 300 laborers were killed by the falling of a portion of the mine, and hence it is known as the Matagenti, or Kill-people. The well-known Cornish engineer, Richard Trevithick, introduced nine steam-engines into this mine ; in 1814 he visited the country himself, and was received with the highest honors ; it was even proposed to erect a statue to him in solid silver. In consequence of political dissensions and civil war he was afterwards forced to escape, and he carried with h:'m as the only remnant of his former wealth a single pair of silver spurs. The total amount of silver smelted at the Pasco works from 1784 to 1827 was 4,967,710 pounds troy, while the value of the metal yielded in 1851 was about 400,0002. sterling. The Republic of Bolivia contains mines whose' riches have passed into a proverb. The immense deposits in the isolated mountain known as the " Great Potosi," were discovered in 1545, since which date, according to various estimates, they have sup- plied the world with silver to the amount of 240,000,0002. The greatest store of metal appeai-s to have been near the * Prescott's History of the Conquest of Peru. 28 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. surface, so that the most flourishing period occurred shortly after they were opened. The average annual yield from 1545 to 1556 was about 2,818,000Z., and at that date silver possessed a value fully six times that which it holds at present. The Potosi mines, however, have fallen from their rank as the first in the world in point of quantity produced, and Chevalier estimates that at present they do not give an annual yield of over 192.000Z. The sad condition of the mining interest in Bolivia may be perceived, when the fact is mentioned that in that country in_1852 there were 4,165 abandoned mines, and only sixty- six in actual operation. The mines of Peru and Bolivia, notwithstanding their depressed condition during recent years, yielded, from the period of their discovery to the year 1845, a quantity of silver equal to 155,839,180 lbs. troy, or a money value of not less than 506,220,000?. The politi- cal condition of Chili has been more favorable for the prosecution of mining adventure, and English enterprise has served to open a number of mines within its borders. Not less than 1,750,000 pounds of silver were raised in this country between 1846 and 1853. The vast metallic deposits of Mexico began to claim attention about the same period as those of South America. Workings were commenced at Zacatecas in 1548, and at Ghianaxuato in 1558. In the early period of their history the mines of Mexico produced, according to the estimates of Humboldt, from 400,000?. to 600,000Z. per annum. During the 18th century this pro- duction gradully rose to 4,600,000?. per annum. This yearly sum decreased during the War of Independence, but within the last ten years it appears to have been higher than ever before, having, according to the most reliable accounts, reached 5,000,000?. sterling. Chevalier calculates the total yield of the Mexican mines, between the advent of the whites and the year 1845, to be at least 162,858,700 pounds troy. The earliest method of obtaining silver from its ores, of which we have any knowledge, bears an astonishing resem- blance to that made use of at the present day. The reader will recall in this connection the striking similes used by the Prophet Ezekiel : " Son of man, the house of Israel is to me become dross : all they are brass, and tin, and iron, and lead, in the midst of the furnace ; they are even the dross of silver." And, "As they gather silver, and brass, and iron, and lead, into the midst of the furnace, to blow the fire upon it, to melt it ; so will I gather you in mine an- ger and in my fury, and will leave you there and melt you." Only those who have seen beneath the glowing arch at the smeltin;^ works, flames surging wave after wave across the surface of the liquid metal carrying all the substances here called dross from the pure silver, and only those who have heard the roar of the fiery blast that ceases neither day nor night until its task of purification is accomplished, can ap- preciate the terrible force of the figure macle use of by the prophet. Several other passages in Holy Writ show us that the plan of extracting silver from its ores in those ancient times was first to obtain the silver in combination with lead and other easily oxidisable metal-3, and then, by heating the compound in a furnace and blowing air upon it, the impuri- ties, or " dross," were turned into light oxides that were ab- sorbed by the hearth, or floating on the surface were scraped away. The student of metallurgy will find that the method adopted in most of the silver furnaces of the present day, is in principle analogous to this. The Romans made use of a similar plan. Strabo quotes Polybius as speaking of a silver ore which, after being washed seven times, was melted with lead, and became pure silver. Pliny says that most of the silver in his time was found in connection with lead, and he further remarks that neither metal can be extracted from its ores without the addition of the other. The plans in use for extracting silver from its natural combinations, without in one form or another introducing lead into the furnace^ are probably all of modern invention, and it is hence likely that this last expression of Pliny gives a gen- eral fact in the metallurgy of silver in his time. That silver must always be added to the ores of lead to insure the pro- duction of the latter metal is an error, probably originating in the circumstance that pieces of native silver, in order that they may be readily fused, are frequently given directly to the argentiferous lead in the process of cupelation. And it is further probable that in ancient times all the commer- cial lead contained a very perceptible quantity of silver which it might readily be supposed had been added pur- posely. But it is not to be expected that very distinct ac- counts of the metallurgic processes of the Romans should have descended to us, sin.ce the reduction of ores was carried on in mountain fastnesses, far from regions frequented by men of cultivation ; and mining and metallurgy were not then, as they have become in modern times, subjects to which men of the highest mental capacity directed their at- tention. What in later days such men as Swedenborg, Humboldt, Le Play, Rivot, and Scheerer have studied and written upon with laborious care, was then left almost en- tirely in the hands of serfs and malefactors. The accounts that Diodorus has handed down to us of the cruelties prac- tised in the mines of Spain are shocking to every sense of humanity. Here the wretched laborers were driven, under the whip of overseers, night and day, along the dark passa- ges of the mine, and, forced to crawl with their loads of ore through cramped crevices charged with all the vapors that collect in subterranean excavations. It is pleasing to one hopeful for the grand principle of human progress to observe the immense and universal change for the better in the condition of the laborers, that has gradually taken place in this branch of industry. In England each precious life that is lost in the mines is count- ed with scrupulous care ; and by governmental and private efibrts it is sought to prevent accidents and save bodily suf- fering. In Westphalia can be seen vast bathing establish- ments, where all the miners belonging to the works may take their warm baths as regularly as did the old Roman aedile. The silver mines of Saxony have an organ at their mine to accompany them in their religious exercises that precede their hours of labor. In southern Austria furnace-men and miners are generally pensioned by the Government, at full pay, after a faithful service of 40 years, and in many lands steam not only draws the ore that was once laboriously car- ried out by human labor, but even transports the miner him- self to and from his daily employment. The mining of sil- ver has led more than that of any other metal to this ame- liorated condition of the miner, since its veins, penetrating deep into the earth, have carried the adventurer gradually forward, compelling him continually to devise new expe- dients for the purpose of raising the water that threatened to flood his treasure, to supply himself with pure air, and to draw to the surface the mineral that he had collected in his rocky caverns. The study of Hydraulics, Pneumatics, and Mechanics was thus encouraged," by supplying a profitable field for the practical application of the results of these sciences. Gunpowder, which has wrought a change in the underground economy of the rniner, as radical as that which it has efiected in the habits of civilized nations, is stated to have been first employed for blasting, in a mine produ- cing silver ; that of Rammelsberg in the Hartz. The mines of silver are among the most extensive with which man has pierced the surface of the earth. Recently could be seen, at the bottom of the Samson mine, in Hanover, figures in- dicating that the main pit is 2,600 English feet, or within 40 feet of half a mile deep. It is a subject for wonder, how, with the aid of water power alone, and with wooden pumps that seem ready to fall to ^lieces with every stroke, even the most patient miner should have reached a depth so extraor- dinary. The vein of Guanaxuato, in Mexico, has been ex- plored for about 2,000 feet. The deeper mines about Claus- thal on the Hartz reach 1,900 feet below the surface. Some of the most extensive engineering works connected with mining have their origin in the search for silver. The adit level, commenced in 1782 with the object of draining the Schemnitz district, in Hungary, is intended to be nearly 9 miles long, and each fathom it is estimated will cost 40?. The Freiberg silver mines, in Saxony, are about to be tap- ped by a level nearly 8 miles (42,640 feet) in length, which will carry the water off at a point 410 feet below the level of the present deepest drainage. This tunnel will be 9 feet 11 inches in height, about 8 feet wide, and will rise in the whole distance 12.6 feet. The metallic district of the Hartz around Clausthal is drained by what is known as the " Tiefe Georg- stollen," which was partly excavated in the latter years of the last century, and completed in 1835. It is llj miles longj and taps the mines 840 feet below the surface. At a depth of 375 below the " Stollen ' above mentioned, is a THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 29 subterranean canal, upon which ore is transported in boats from different mines to a convenient place for winding. The length of this navigable channel is over two and a half miles. Beside stimulating mankind to the profound study of the Divine laws by which matter is governed, by furnishing a domain where knowledge thus gained could be brought into daily and profitable use, silver, in its purified condition, has played among the nations of the earth a very important part as a civilizer. I allude to its employment in the form of money in facilitating necessary exchanges of property, and thus encouraging the ennobling intercourse of nations. Mention has been already made of the period when it is supposed that coius were invented. From the earliest his- torical times to the present, silver has been par excellence the metal of the mint, and in pieces of determined value it now circulates under a thousand familiar names wherever com- merce ia known. As a standard of value silver possesses ad- vantages over all other substances. Gold alone presents qualities that can be brought into comparison with it in this connection. The fact that since the discovery of America gold has fallen, when compared with the necessities of life — as, for example, food — but in the proportion of 4 to 1, while silver in the same period has experienced a depression in the proportion of 6 to 1, has been adduced to show that the former metal is the most staple in its worth, and hence best suited for a standard. But the circumstances that have taken place within the last century can never occur again. No virgin hemisphere yet remains with mountains teeming with silvery ores, whose discovery can work a new epoch in the history of the precious metals. But, as a substance of universal distribution in nature, and requiring long, labor- ious, and ingenious processes to extract it from its layer in the solid rock, and bring it into a form adapted for circula- tion, silver must always retain a worth among men that will bear a steady relation to the necessities of life. — Cb7Bpi?ed./ror» " MetaVivffqy of Slluer and Lead, by R. H. Lamhorn^ Fh. D" HISTORICAL SKETCH OF LEAD. IN ancient times lead appears to have held quite a sub- ordinate position among the metals, both as regards the number of its uses and the value it possessed in the market. Of its discovery history furnishes us with no information. The Greek term molybdus, by which the metal was known, is so closely analogous to its Indian name, mulva, that some authors have been led to the con- clusion that the knowledge and usage of the metal originated in remote ages in the distant East, and from hence was dis- seminated among the nations of Europe. Nature produces, in sufficient quantities to attract the attention of the primi- tive worker in metals, only such compounds of lead as fur- nish the pure metal after a chemical process requiring the aid of heat ; so that, unlike gold, copper, or silver, its earliest use must have come subsequent to that condition of cultivation that enabled the reduction of an ore. The dis- covery of native lead among natural productions is due to the scientific acumen of more recent times. An elementary acquaintance with the properties of ores once possessed, it is not diflScult to follow the course of reasoning and experi- ment that would lead to the discovery of lead. Its most valua"ble and abundant ore — galena — possesses so many qualities calculated to make it remarked by an uncultivated race ; its weight, its brilliant metallic glance, its hardness, would all favor the conclusion that it was an unrefined metal, and a very simple operation of the mind would lead to the attempt to make it malleable by subjecting it to the action of the fire. The occurrence of the ores of lead with silver, and the attempts to purify the latter, may have been the immediate cause of the discovery of the former metal. The winning of lead from plumbiferous silver ores was in the earliest times not connected with the reduction of the litharge, as is at present so generally the case. The lead was deemed the impurity of the more precious metal, and was " burned " or oxidized away, as has been described in the history of silver. The earliest mention that we have of lead occur.i in Numbers, where it is spoken of with various other metals among the spoils brought by the children of Israel to Moses, after their victories over the Midianites ; and it is evident that the same metal was an article of trade, together with silver, iron, and tin, at the fairs of the Phoe- nicians.* The Romans employed for lead the name^?um- bum, which clearly had its origin in the Greek and Indian appellations. They appear to have regarded lead and tin as but varieties of the same metal, distinguishing the former as black lead, and the latter as white lead. Remarkable differences, however, were observed as existing between the two, and the process of collecting the mineral, producing the white variety (stream tin) from the dibris of the valleys, is distinctly described; and, further, the fact that black lead only, of the two varieties, could be refined for the pur- pose of obtaining silver, appears to have been well under- stood. The employment of lead in ancient times was much less general than one might anticipate from the abundance with which it occurs in nature. It was often used in con- nection with tin as an alloy, and this mixture, being em- ployed in the manufacture of bronze, probably led to the introduction of the lead which is found to constitute a por- tion of many works of plastic art, and coins, that have de- scended to us. I have seen, in the Museo Borbonico, at Naples, portions of an ancient water conduit from the island of Capri, in which an exceedingly malleable lead was em- ployed apparently for tightening the joints. Lead also ap- pears to have been made into plates and tubes, and to have answered as a material for vessels for household purposes. Some of the chemical compounds of the metal appear to have been well known to the Romans. Litharge, produced in the treatment of argentiferous lead, was a common sub- stance. As it was crystalline or amorphous, or more or less pure, it received difterent names, which names were sup- posed to designate entirely different substances. The finer qualities were employed in medicine, in the prepara- tion of plasters. What is now known as white lead was called by the Ro- mans " cerussa," and they prepared it by a method not very dissimilar to that in use at present in many localities, by al- lowing vinegar to act upon the commercial metal. This substance was used as a color, and also extensively in med- icine. It is related that some casks of white lead, that hap- pened to be in a burning building, were so affected by the neat, that their contents became a fine red color that was found to make an excellent pigment, and which, after this accidental discovery, was manufactured and sold under the name of " burned white lead." This was the beginning of the knowledge of what we call '' red lead," a substance now so valuable to the painter. The Romans knew how to re- duce the litharge formed in the process of smelting silver to the condition of metallic lead, but this knowledge, limited as it may seem, does not appear to have been possessed by the tribes of eastern Siberia, where Gmelin .states that he observed the remains of many old furnaces where silver had been extracted, but where the lead with which it had been combined was, after oxidation, thrown away. The poison- ous qualities of the vapors of lead were known to the an- cienta, and the deplorable effects it produces upon laborers employed in the furnace were early noticed, as were also the highly poisonous qualities of many of the lead compounds. Although they appear to have used lead in the form of a thin sheet, to detect by its color, upon being immersed in wine, the state of acidity to which that fluid had arrived, it does not appear that they had discovered the more modern plan of adding litharge to sour wine, for the purpose of im- proving its taste, by bringing about therein the formation of a sweet salt. The countries standing first as producers of lead in modern times are Great Britain, Spain, and the United States. The royal decree that in 1825 opened the Spanish mines to native and foreign competition was fol- lowed by a period of rapid expansion in the mining and metallurgic industry of the kingdom. For a period pre- vious to 1820, with the exception of a few inconspicuous iron pits, the only mine in activity in Spain was that of Almaden, where the Government monopolised the produc- tion of quicksilver. But in 1826 no less than 3000 mines had been opened in the Sierras of Gador Lujar. So large * Ezek. xiyii. 12. 30 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. and rich were the lead deposits here, that in 1823 the pro- duction of the region had reached 25,000 tons per annum, and in 1827 the quantity produced was 42,000 tons. The markets of the world were soon overflowing, and, as a con- sequence, a universal depression in the price of lead was experienced throughout Europe, and many of the poorer mines of Germany and England were compelled to suspend operations. At length, in order to raise the price of the metal to a remunerative point, the miners of the country were obliged to enter into a mutual agreement to work the deposits only during half the year. These vast stores of metal were, however, chiefly near the surface ; their pro- ductiveness soon began to diminish. Their point of culmi- nation was in 1827, since which there has been a rapid fall- ing off, until at present the yield is comparatively incon- siderable. The lead and silver mines of Sierra de Almagrera were discovered in 1839, and the excitement which the dis- coveries there made produced was extraordinary. The influx of population was such that in 1845,8000 miners were employed in that district in 826 mines, and there were 38 smelting works in operation, which produced in that year 108,230 pounds troy of silver and 8,350 tons of lead. The ore which furnished the great quantity of precious metal was an argentiferous galena holding from 130 to 180 ounces of silver to the ton. But upon sinking deeper the miners found that their ore decreased in quantity, and this deposit has also become of less importance than it formerly was. Besides these districts, the ancient mining region of Linares has produced much lead since having become a locality for the exertion of English enterprise. Great Britain contains a large number of lead-bearing districts, and her production of this metal, as well as that of tin, copper and iron, is enormous. The production of silver and lead are intimately connected, and the introduction of new processes that will be described in subsequent chapters, has brought her yield of the latter metal to a large figure during the last few years. From the circumstances that pigs of lead, evidently of Roman origin, have been found in Derbyshire, we are led to the conclusion that Britain was a lead-producing country even in those remote times. It is generally stated that Derbyshire supplied the only mines where that metal was raised until 1289, when the lead deposits of Wales wei-e discovered. In 1661 Childey, speaking of the Peak of Derbyshire, gives the following curious account of the treatment of the ores in that district; — "The lead stores of the Peak are just within the ground, next to the upper crust of the earth. They melt the lead on the tops of the hills that lie open to the west wind, making their fire to melt it as soon as the west wind begins to blow, which wind, by long experience, they find holds longest of all others. But for what reason I know not, since I should think that lead was the easiest of all metals to melt, they make the fires extraordinarily great." The most important lead- mining district at present is in the north of England, in the vicinity of Alston Moor, where the three counties of North- umberland, Durham, and Cumberland come together. Near this point are the large possessions of Mr. Beaumont, which produce about one-fourth of the whole quantity of lead raised in England, and one-tenth of the entire yield of Europe. The increase in the amount of lead raised in Cornwall and Devon within the last twenty years has been quite extraordinary. Borlase, who wrote in 175J', says, that lead mines had been anciently worked in the first-named county ; that those of Penrose, near Helston, had been wrought for about 200 years, but the only mine worthy of note in his time waa that of St. Issy, near Padstow. In 1835 only about 140 tons were produced by the mines of the two counties, and in 1839, according to De la Bfiche, the whole produce amounted to scarcely 180 tons, while in the years from 1845 to 1850 over 10,000 tons were raised annually. One mine alone of extraordinary richness. East Wheal Rose, produced from 1845 to 1849 from 3000 to 5000 tons of metal- lic lead annually. In 1858, 9710 tons were sent to market from 34 Cornish mines, and among these were 13, each of which furnished more lead than was raised in the whole county twenty years before. The ore raised in Cornwall is largely silver-holding ; the average of that metal per ton of lead produced in 1858 was 41 ounces, while the average for the entire United Kingdom for the same year was between 8 and 9 ounces. Isolated mines produce ore much richer than the above average ; thus Huel Mary Anne in 1858 yielded 906 tons of lead, containing an average of over 68 ounces. The mines of Derbyshire furnish some ex- amples of ores extremely rich in silver. Huel Florence gave ore in 1858 containing 150 ounces, or equivalent to 225 ounces per ton of metallic lead. Two tons of this ore realised 19SI. 16s. The yield of the lead mines of Great Britain in 1810, although exceeding in amount that of all the rest of Europe, did not amount to over 12,500 tons, in 1845, according to the estimates of Mr. Taylor, it had increased to 46,112 tons. In 1858 the invaluable statistics prepared by Mr. Hunt show that 68,303 tons of metallic lead were produced from 95,855 tons of ore, being an aver- age of 71 per cent. There are few articles occupying such an important place in commerce, that experience such large variations in price, as lead. In the period between 1800 and 1810 its average price was 271. 14s. 6d. per ton ; irom 1811 to 1821, 231. 6s. 6d. ; from 1822 to 1832, 20/. 7s. In 1832 the price was as low as 18^. 10s., and in 1858 the mean value per ton was about 211. 10s. In the United States, lead ores are widely distributed among the several States, but by far the most considerable amount is raised in that portion of Wisconsin, Iowa and Illinois, which is generally known as the " Upper Mississippi Lead Region." Here the ore is non-argentiferous galena, occurring in limestone in irregular deposits o'r veins that do not appear to retain their richness below a moderate depth. The ancient inhabitants of the country appear to have been aware of th6 existence of the mineral, but it is doubtful whether they understood the process of smelting it, for although galena has been found in their sepulchral mounds, no metallic lead has as yet been discovered. Le Sueur, the French explorer, notices many mines of lead along the bank of the Missis- sippi during his expedition in 1700-1701, but little attention appears to have been paid to the wealth there until 1788, a French miner named Dubuque obtained a grant of a tract of land and opened mines, which he continued to work until his death in 1810. In 1839 a geological exploration was ordered by the United States Government, and, aided by 139 assistants. Dr. D. D. Owen made a rapid exploration of a region embracing 2880 square miles, which he reported to be plumbiferous. — • — Compiled from the " Metallurgy of Lead hy B. H. Lamhom, Ph. D.'* HISTORICAL SKETCH OF COPPER. COPPER is one of the six metals spoken of in the Old Testament, and one of the most important of the seven mentioned by ancient historians. It was known at least as early as the time of Tubal Cain, since he was an instructor of artificers in brass and iron. Grecian historians relate that Cadmus discovered copper, and taught its application to the wants of mankind. It was found on the island of Euboea, near the town of Chalkis, and hence, it has been assumed, came the Grecian name Chalkos, by which the metal was Icnown to Homer, Hesiod, and other ancient Achaean authors. The Romans knew copper as aes cyprum, and later as cuprum, names derived from that of the island of Cyprus, where Pliny declares the method of working it was discovered. It is certain that upon this island thePhajnicians had opened mines at a very early date. Hence in the mystic nomenclature of the Alchymists copper came to be called Venus, to which god- dess Cyprus was sacred, and among their signs it was known by the astronomical designation of that planet ? . The English word copper, the French ruicre, and the German kupfer, were introduced into those languages during the middle ages, and are plainly but alterations of the Latin name. The mention of copper in the oldest records, and among the first metals whose use was known to mankind, is consistent with what we would be led to conclude, after a close consideration of its nature and the manner of its occurrence. Masses of the tough native metal, detached by water from their original beds, and deposited in spots where a warlike people went to seek stones from which to shape their rude weapons, by reason of their weight, color, lustre, THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 31 and malleability, would quickly attract attention. These qualities, connected with the fact that the native maisses are often of considerable size, render it more than probable that copper was the first metal upon which were made the unskilled attempts of primeval smiths and smelters. In the Hebrew manuscripts no distinction is made between pure copper and the alloy with tin, which in modern times has been known as bronze, but which in our translations is rendered by the word brass. This alloy, however, was undoubtedly the discovery of a generation long posterior to that which made the earliest use of native copper, since tin not being found in the countries bordering on the shores of the Mediterranean, could only have been introduced after commercial relations with distant European or Asiatic regions had been established. It is generally assumed, without any particular evidence to support the assumption, that the ancients had a means of making this alloy of tin and copper so hard that it would cut the most refractoiy rocks, and the existence of vast monuments of syenite and porphyry are spoken of by antiquaries as inexplicable under any other supposition. It is a fact provoking speculation, that the race of the Incas in Peru, although unable to reduce the iron ores that were scattered in abundance around them, and hence ignorant of the use of that metal, were well aware of the peculiarities of this hard alloy of copper and tin, and forming it from proportions almost identical with those adopted by the ancients of the old world, used it to construct the tools required for dressing the stones necessary in building their vast aqueducts and temples. The Israelites had bronze weapons in the time of David. Homer represents his heroes fighting with arms made from the same substance, and it formed an important portion of many of the agricultural implements of the ancients. Bronze was early recognized as a material adapted to the needs of the fine arts ; the Colossus of Rhodes, which was constructed of this metal, is a remarkable proof of the abundance of copper even at that early date; and it is said that Mummius after the sacking of Corinth, filled Rome with bronze statues, thus transporting Grecian art to the banks of the Tiber. Whether the Phoenicians who carried tin from Britain found there the knowledge of making bronze is uncertain; but it is a probable hypothesis, that the enigmatical weapons and tools of bronze found in the graves of some ancient race in various European lands, and which archaeologists have determined to be Celtic remains, were obtained by the wandering tribes from that region in Britain where at the present day the descendants of those same metallurgic Celts have made themselves the largest refiners of copper on the globe, and in whose vicinity occurs the richest and almost the only known tin region within a circumference of many thousands of miles. The earlier money of the Romans was of bronze, or more rarely of the alloy of copper with zinc, known as brass. Before the time of the Caesars no pure copper pieces appear to have been struck, and those of the time of the emperors often show indications of having been silvered, by which process it is probable they were made to take the place of solid pieces of the more valuable metal. Descending into the middle ages, we find a new and imj)ortant application of copper in its combination with tin originating in the triumph of the Christian religion. Church bells, which are made of this alloy, are first definitely mentioned in ecclesiastical records of the seventh century ; they were brought into general use by Charlemagne, and for several centuries were almost the only object for the employment of the founder's art. In the construction and ornamenting of churches, copper, bronze, and brass, have played an important part : the roof, the altars, and the sepulchral monuments were often wrought of these substances ; and the statues and decorations of pantheistic temples still exist in renovated forms in the worshipping places of Christendom. The in- vention of gunpowder, and the subsequent introduction of bronze cannon in the wars of the fourteenth and fifteenth centuries, had an important influence in increasing the value and the production of copper ; and, as the civilization of more modern periods grew, the demand for a cheap metal, approaching in its properties those of gold and silver, in- creased rapidly, until at present there is scarcely a branch of human economy where copper is not found an important means of arriving at greater perfection. Either unmixed or in the form of a compound, it is employed in the con- struction of nearly all kinds of machinery ; for forming the delicate instruments of the astronomer, natural philosopher, engineer, and musician ; for increasing the security of com- mercial enterprise by adding to the durability of ships ; as a path for the electric current in its bold journey from con- tinent to continent in the service of civi lization. It furnishes a re-agent for the chemist, and for the physician a remedy against disease. The sculptor employs it to express his con- ceptions, the painter, aided by the engraver, to reproduce and disseminate his beautiful thoughts. The electro-metal- lurgist uses it to catch and make prominent the evanescent forms of nature and art. The glassmaker, the cook, the dyer, and those engaged in many other employments, use it constantly, whilst almost every advance made in technical science adds to the number of its applications. Eubosa and Cyprus have already been mentioned as localities known to the ancients for their mines of copper-producing minerals. The Egyptians, in early times, drew their supply of the metal from Arabia, and it is related that one of the objects in view by Ramses the Great, in digging the canal across the isthmus of Suez, was to connect the copper-producing countries of the Arabian peninsula with his kingdom on the Nile. Travellers of the present day. find in the midst of the waste, far removed from the region of fuel, remains of mines, and hieroglyphic inscriptions provir.gthem to belong to an age almost beyond the reach of history. Upon the highlands of the Urals and the Altai are found remains of mines dating from the most remote period, before the use of iron was introduced as a material for the construction of tools. The Phoenicians brought copper from Asia Minor, the Taurus Mountains, England, Portugal, and Spain, and during the middle ages the last-mentioned countries produced a notable quantity of the metal under consideration. The information we have regarding the early stages in the progress in Britain of both the mining and metallnrgic divisions of this important branch of industry, is remarkably scanty, and records or traditions treating of the period prior to the beginning of the seventeenth century, are seldom of a reliable character. At Newlands, near Keswick in Cum- berland, some rich mines of copper were wrought about 1250, and it would appear that in 1470 the place was still famous for the metal it produced. Ecton Hill, in Staffordshire, was another spot where copper was obtained in considerable abundance, previous to the era of copper mining in Corn- wall. It is amusing, with our present knowledge of the mineral resources of England, to meet with Acts of Parlia- ment passed in the reigns of Henry VIII. and Edward VI. for preventing the exportation of brass and copper, lest there should not be metal enough left in the kingdom fit for making guns and other engines of war, and for household utensils ; " and even at so late a date as 1708, to find a memorial presented to the House of Commons by the brass manufacturers, stating that " England, by reason of the in- exhaustible plenty of calamine, might become the staple of brass manufacture for itself and foreign ports, and that the continuing the brass works of England would occasion plenty of rough copper to he brought in." At this period the supply of copper came from the Continent, metal produced by the mines of the Hartz and Hungary was sold in the magazines of London, and, indeed, not until 1717 were English pennies struck from English metal. At the end of the seventeenth century the attention of Cornish tin miners began to be seriously drawn to the more valuable cupreous deposits around them ; previous to that date, it is true, cop- per ore had been sold at a low price under the name of poder, but this was produced by mines worked or originally opened for tin. The yellow copper pyrites was the first ore recognized as valuable by the miner, the far richer sulphide and black oxide of copper were for a long time not con- sidered worth preserving, and thousands of pounds were cast into the sea or left standing in the lodes to surprise and de- light subsequent and wiser explorers. Deposits began to be opened, exclusively for the copper they contained, about the commencement of the last century, and from that time to the present the produce of ore has gradually but steadily increased. The discovery of the rich mines of Anglesea in 1768, the addition of Devonshire and Ireland to the list of copper-producing regions, and, of late yftars, the immense 32 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. importation of ores from Chili, Cuba, and the Pacific islands, have neither destroyed the demand for Cornish ore nor ma- terially disturbed the law of growth. The advantage of sending ore to be smelted in the rich repository of fuel in the Welsh coal basin was very early perceived, and, even in 1586, according to Carew, ore was shipped thence from Cornwall. In 1765 several furnaces were in existence near Bristol, and others along the coast toward the westward. The general plan of the various processes then in use appears to have been extremely similar to that now practised at Swansea, and known as the English method of smelting cop- per ; and when we consider the complex nature of the nu- merous operations which it includes, and the remarkable difierence that exists between them and those practised at that time in all other copper-refining countries, we cannot but admire the ingenuity and judgment of those old metal- lurgists who, aided only by their clear powers of observation, worked out a system which, while it is so excellently adapted to all the circumstances of the locality, can be used in the treatment of every known variety of ore, and has withstood, with but slight changes, the keenest researches of modern science. In the United States of America copper, in workable quantities, has been found in nearly all the States pene- trated by the Appalachian chain of mountains. The oldest incorporated mining company in the country appears to have been one for the purpose of working copper ores in Connecticut, the date of whose charter is 1709. But all other deposits at present suffidently developed to warrant a judgment regarding their value, are exceeded by that which, within the last sixteen years, has been re-opened upon the shores of Lake Superior. That this remarkable region was known to a race existing at a period anterior to the earliest authenticated dates in aboriginal history, is evident from the remains which still exist of gangways, tools, and other proofs of skill which the races occupying the country at the time of its discovery nowhere evinced. The Indians found by the first travellers were utterly ignorant of the methods of working that had been in use by the former race ; they had no traditions to explain the existence of the numerous excavations, and what copper they possessed was only such as they gathered among the surface stones. The first record of the deposit is found in the missionary report of the Society of Jesuits for 1659-60. The savages had then rude utensils made from the metal, and huge blocks of it were erected and worehipped among their gods. In 1763, one Henry, a practical English- man, explored the country at the imminent risk of his life, and in 1771 he established works, which were, however, soon abandoned. The recent mining era of the region be- gins with the year 1844. The explorations of various scien- tific men had made the region partially known to the world, and miners drawn thither by the reports of mineral wealth, soon discovered large blocks of the native copper, contain- ing much silver. A feverish excitement set in among adven- turers and capitalists, and companies were formed in various parts of the world to work localities, of which, in many cases, not even a survey had been made. In 1847, the inevi- table crisis came, and of the hundreds of companies nomi- nally existing, only six were found actually engaged in mining. The distrust naturally resulting from these early disasters has gradually disappeared. The convulsion was beneficial in exposing the spurious and worthless schemes, and in pointing out those enterprises whose inherent strength made them capable of weathering the storm. Since that period the progress of the region has been healthy, legitimate, and unwavering. — — Compiled from " Tlie Metallurgy of Copper^ hy It, H. Lambomf Ph, i)." FIRST ATTEMPT BY EUROPEANS TO MANUFACTURE IRON IN THE UNITED STATES. IT would not be profitable to inquire minutely whether the mound-builders or other aboriginal inhabitants of the United States, or the aboriginal inhabitants of any other part of the American continent, possessed a know- ledge of the use and consequently of the manufacture of iron. It may be assumed that it has not been proved that they possessed this knowledge. Antiquarians have not neglected a subject of such importance, but thus far their researches have been fruitless of decisive results. Rude hatchets and other small implements of iron have been found in situa- tions which give color to the theory that they may have been of aboriginal origin, but the weight of much concur- rent testimony is strongly against this supposition. Pres- cott expressly says that the inhabitants of Mexico and Peru, who were, at the time of the -conquest, the most advanced in all the arts of civilization of the immediate predecessors of the white race in North and South America, were unac- quainted with the use of iron, copper serving them as a sub- stitute. Our North American Indians were certainly unac- quainted with the use of iron when the English, the Dutch, and other Europeans first landed on the Atlantic coast. In the absence of conclusive information concerning the use of iron by any of the aboriginal inhabitants of America, the interesting fact may be parenthetically stated that iron is now made in Cherokee county, in the western part of North Carolina, by some members of the remnant of a band of Cherokee Indians. They use the primitive Catalan forge, which was introduced into North Carolina by the early white settlers. North Carolina first gave to Europeans the knowledge that iron ore existed within the limits of the United States. The discovery was made in 1585 by the ex- pedition fitted out by Sir Walter Raleigh, and commanded by Ralph Lane, which made in that year, on Roanoke Is- land, the first attempt to plant an English settlement on the Atlantic coast. Bishop, in his History of American Manu- factures, says that "Lane and his men explored the country along the Roanoke and on both sides from Elizabeth river to the Neuse." Thomas Hariot, the historian of the colony, and servant to Sir Walter Raleigh, says that, " in two places of the countrey specially, one about foure-score and the oth- er sixe score miles from the fort or place where wee dwelt, wee founde neere the water side the ground to be rockie, which, by the triall of a minerall man, was founde to hold iron richly. It is founde in manie places of the countrey else. I know nothing to the contrarie but that it male bee allowed for a good marchantable commoditie, considering there the small charge for the labor and feeding of men ; the infinite store of wood ; the want of wood and deereness thereof in England ; and the necessity of ballasting of shippes." But no attempt was made to utilize this discov- ery, as the colonists were in search of gold and not iron. In 1586 they quarreled with the Indians and returned to England. ■ A permanent settlement in North Carolina was not efiected until many years afterward. Iron ore was not mined in North Carolina nor was iron made within its boun- daries until after many of the other colonies had com- menced to make iron. In 1607 the first permanent English colony in the New World was founded at Jamestown,in Vir- ginia, by the Virginia Company of London, and on the 10th of April in the following year, 1608, the company's ship, commanded by Captain Christopher Newport, sailed from Jamestown, loaded with iron ore, sassafras, cedar posts, and walnut boards, and on the 20th of Blay it arrived in Eng- land. From Neill's history of the company we learn that the iron ore was smelted, and " seventeen tons of the metal were sold at £4 per ton to the East India Company." This was undoubtedly the first iron made by Europeans from American ore. In 1610 Sir Thomas Gates, who had spent some time in Virginia, testified before the council of the company, at London, that there were divers minerals, es- pecially " iron oare," in Virginia, lying upon the surface of the ground, some of which ore, having been sent home, had been found to yield as good iron as any in Europe. The iron here referred to was that whicli had been sold to the East India Company. In 1610 the Virginia Company sent to Virginia a number of persons who were skilled in the manufacture of iron, to "set up three iron works" in the colony. The enterprise was undertaken in that year, and was located on Falling creek, a tributary of the James river, which it enters on its right or southern bank in Chesterfield county, about seven miles below Richmond, and about sixty- six miles above Jamestown. In 1620, as stated by Beverley in his History of Virginia, "an iron work at Falling creek, in James River," was set up, " where they made proof of THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 33 good iron oar, and brought the whole work so near a perfec- tion that they writ word to the company in London that they did not doubt but to finish the work and have plentiful provision of iron for them by the next Easter" — in the spring of 1621. But neither " plentiful provision " or any other provision of iron was made on Falling creek in 1621, owing to the death of three of the master workmen who had the enterprise in charge. In July of that year the company sent over Mr. John Berkley, "formerly of Bever- stone Castle, Gloucester, a gentleman of an honorable family," to take charge of the work. He was accompanied by his son Maurice and twenty experienced workmen. In a letter from the company to the colonial authorities, dated July 25, 1621, it was stated that " the advancement of the iron works we esteeme to be most necessarie, by perfecting whereof we esteeme the plantation is gainer. We therefore require all possible assistance be given to Mr. Berkley now sent, and all furtherance to his ship, especially good enter- tainment at their landinge." On the 12th of August of the same ytar the company, m a communication to the authori- ties, wrote respecting the iron works and the saw-mills which had been projected: "We pray your assistance in the perfectinge of these two workes ; the profitt will redound to the whole colony, and therefore it is necessary that you extend your authoritie to the utmost lymitts to enforce such as shall refuse the help to a business so much tending to the generall good." On the 5th of December, 1621, the com- pany again wrote, enjoining "all possible dilligence and in- dustrious care to further and accomplish those great and many designes of salte, sawinge mills, and iron." Jn Janu- ary, 1622, the authorities wrote to the company that " the care we have taken of the iron workes we reserve to be re- ported by Mr. Threasurer and Mr. Berkley himself." On June 10th the company wrote of " the good entrance we have understood you have made in the iron works, and other staple comodities," and added, " let us have at least by the next returnes some good quantitie of iron and wyne." But before this letter was written the colony had been visi- ted by the Indian massacre of the 22d of March, 1622, in which John Berkley and all his workmen were slain and the iron works were destroyed. The works were not rebuilt. Bev- erley, writing in 1705, says the project of iron works on Fall- ing creek " has never been set on foot since, till of late ; but it has not had its full trial." In 1624 the charter of the Vir- ginia Company was revoked. Arid thus ended disastrously the first attempt by Europeans to make iron in America. The "good entrance" mentioned in the company's letter of June 10th doubtless referred to satisfactory progress in the construction of the works, but there is no positive evi-' dence that iron was ever made on Falling creek. Letters from Mr. John Berkley had promised that "the company might relye upon good quantities of iron made by him" by Whitsuntide of 1622, but the massacre occurred before that time. Beverley, however, in referring to the Falling creek enterprise, says that " the iron proved reasonably good ; but before they got into the body of the mine the people were cut off in that fatal massacre." The ore on Fall- ing creek is described as having been brown in color. Mr. Berkley declared that "a more fit place for iron workes than in Virginia, both for woods, water, mynes, and stone," was not to be found ; and Mr. George Sandys wrote to the com- pany on the 3d of March, 1622, that Falling creek was fitted for iron making "as if Nature had applyed herselfe to the wish and dictation of the workeman ; where also were great stones, hardly seene elsewhere in Virginia, lying on the place, as though they had beene brought thither to advance the erection of those workes." We have failed to discover whether the works on Falling creek embraced a blast fiir- nace and refinery or a bloomary only, but the frequent references to building stone in connection with the works, and the length of time and the number of workmen occu- pied in their erection, lead to the inference that a furnace formed a part of the enterprise. No further attempt to make iron in Virginia appears to have been made for many years after the failure on Falling creek, In a pamphlet entitled A Perfect Description of Virginia, published at London in 1649, it is stated that " an iron work erected would be as much as a silver mine." In 1650 another pamphlet, quoted by Bishop, says of iron ore in Virginia : " Neither does Virginia yield to any other province whatso- ever in excellency and plenty of this oare." In 1687, and again in 1696. Col. William Byrd, the first of the name in Virginia, set on foot the project of reviving the works ou Falling creek, but it was not carried into execution. This is the project referred to by Beverley in 1705 as not having had ita "full trial." To encourage manufactures in Vir- ginia the exportation of hides, wool, and iron from the colony was forbidden by an act of the assembly in 1662, on penalty of one thousand pounds of tobacco for every hide exported, and fifty pounds of tobacco for every pound of wool exported, and' ten pounds of tobacco for every five pounds of iron exported. The restriction was removed in 1671, " no successe answering the conceived hopes and apparent losses accrueing to all inhabitants by the refusall of those con- cerned to buy the commodityes aforesaid," but it was re- enacted in 1682. We cannot learn that duringall the time covered by these enactments, and down to the beginning of the eighteenth century, there was a single pound of iron manufactured in Virginia. Notwithstanding the wise en- couragement given by the Virginia Company and by some succeeding colonial authorities to the establishment of manu- factures, the Virginia settlers for a hundred years after the settlement of Jamestown devoted themselves almost entirely to the raising of tobacco and other agricultural products. — ConvpUedfrom James M. BwanUB Ke^ortan Iron and St^lj TejUh Cemus of the U. 5. IRON MANUFACTURE IN THE NEW ENG- LAND COLONIES.. ALTHOUGH iron ore in this country was first dis- covered in North Carolina, and the manufacture of iron was first undertaken in Virginia, the first successful iron works were established in the province of Massachusetts Bay. In 1632 mention is made by Morton of the existence of "iron stone" in New Eng- land, and in November, 1637, the General Court of Massa- chusetts granted to Abraham Shaw one-half of the benefit of any " coles or yron stone w""" shal be found in any comon ground w""" is in the countryes disposeing." Iron ore had also been found in small lakes or ponds on the western banks of the Saugus river, near Lynn, soon after its settle- ment in 1629, and in 1642 specimens of it were taken to London by Robert Bridges, in the hope that a company might be formed for the manufacture of iron. This hope was realized in the formation of "The Company of Under- takers for the Iron Works," consisting of eleven English gentlemen, who advanced £1,000 to establish the works. John Winthrop, Jr., had previously gone to England, and he appears to have assisted Mr. Bridges to secure th^ or- ganization of the company, as did others among the colonists. Thomas Dexter and Robert Bridges, both of Lynn, were among the original promoters of the enterprise. Alonzo Lewis, in his History of Lynn, published in 1844, says that in 1643 "Mr. John Winthrop, Jr., came from England with workmen and stock to the amount of one thousand pounds, for commencing the work. A foundry was erected on the western bank of Saugus river. . . . The village at the foundry was called Hammersmith by some of the principal workmen, who came from a place of that name in England." InNewhall's revision of Lewis's history, published in 1865, the iron works are said to have been located near the site of the present woolen factories in Saugus Centre, a suburb of Lynn, where large heaps of scoria are still to be seen. "This iron foundry at Lynn," says Lewis, " was the first which was established in America. Lynn is eleven miles north-east of Boston. In 1644, and subsequently, as stated by Lewis, the General Court granted many special privileges to the company. On March 7, 1644, it was granted three miles square of land at each of six places it might occupy in the prosecution of its business. On November 13, 1644, it was allowed three years "for y° perfecting of their worke and furnishing of y'' country with all sorts of barr iron." The citizens ware granted liberty to take stock in the enter- prise " if they would complete the finery and forge, as well as the furnace, which is already set up." On the Hth of 34 THE MINES, MINERS AND MINING INTERESTS OP THE UNITED STATES. May, 1645, the general court passed an order declaring that "y" iron worke is very successfull (both in y° richness of "y» ore and y' goodness of y* iron)" and that between £1,200 and £1,500 had already been disbursed, "with which y" furnace is built, with that which belongeth to it, . . and some tuns of sows iron cast . . in readiness for y forge. . . There will be neede of some £1,500 to finish y" forge.'' On the 14th of October of the same year the company was granted still further privileges by the general court, on the condition "that the inhabitants of this juris- diction be furnished with barr iron of all sorts for their use, not exceeding twentye pounds per tunn," and that the grants of land already made should be used "for the build- ing and seting up of six forges, or furnaces, and not bloom- aries onley." The grant was confirmed to the company of the free use of all materials " for making or moulding any manner of gunnes, potts, and all other cast-iron ware." On the 6th of May. 1646, Mr. Richard Leader, the general agent of the company, who is described as a man of superior ability, purchased "some of the country's gunnes to melt over at the foundery." On August 4, 1648, Governor Win- throp wrote from Boston to his son, who had removed to Pequod, Connecticut, that " the iron work goeth on with more hope. It yieldeth now abont 7 tons per week." On September 30th he writes again: "The furnace runs 8 tons per week, and the bar iron is as good as Spanish." Newhall quotes from a Lynn account book for 1651, the following entry: "James Leonnarde, 15 days worke about finnery chimneye and other worke in y° forge, 1: 13: 0. To ditto Leonard for dressing his bellows 3 times, 1 : 10 0." Ed- ward Johnson, of Woburn, in describing Lynn in 1651, in his Wonder Working Providence, printed in that year, says : "There is also an iron mill in constant use;" and Mr. Lewis states that, prior to 1671, " the iron works for several years were carried on with vigor, and furnished most of the iron used in the colony." After 1671 they passed under a cloud, and about 1688 they appear to have finally ceased operations. Their owners were harassed after 1651 with frequent lawsuits, arising from the overflow of the water in the dam. The fear that the works would create a scarcity of timber also appears to have added to their unpopularity. Hubbard, writing about 1677, says that " a work was set up at Lynn upon a very commodious stream, which was very much promoted and strenuously carried on for some time, but at length, instead of drawing out bars of iron for the country's use, there was hammered out nothing but conten- tion and lawsuits." From the foregoing details it is plainly established that the enterprise at Lynn embraced a blast furnace or " foundery " and a refinery forge. The term " foundery '' was long a syno- nym for " furnace," castings being made directly from the furnace, as has been previously stated. This practice con- tinued in this country down to almost the middle of the present century, and is still followed in many European countries. That the furnace was in operation in May, 1645, is certain, and that the forge was in operation in Sep- temper, 1648, is equally certam. These dates may be accepted as definitely determining, respectively, the first successful attempts in this country to make " sowe iron " and other castings in a blast furnace and to make "barr iron in a refinery forge from " sowe iron." Joseph Jenks was a machinist at the Lynn iron works, who had come from Hammersmith in England, and was a man of much skill and inventive genius. He prepared the molds for the first castings that were made at Lynn. " A small iron pot, containing about one quart," was the first article cast in the furnace. It 1844 it was in the possession of Mr. Lewis's mother, who was a lineal descendant of Thomas Hudson, the first owner of the lands on Saugus river on which the iron works were built, and who obtained possession of the pot immediately after it was cast, " which he preserved as a curiosity." " It has been handed down in the family ever since," wrote Mr. Lewis in 1844. Joseph Jenks, who be- came the founder of an eminent New England family, purchased from Richard Leader on the 20th of January, 1617, the privilege of building a forge at the Lynn iron works for the manufacture of scythes and other edge tools. This enterprise was successful. In 1652 he made at the Lynn iron works, for the mint which was that year es- tablished at Boston, the dies for the first silver pieces coined in New England. On one side of these coins was the im- pression of a pine tree. In 1654 he made for the city of Boston the first fire engine made in America. In 1655 the general court granted him a patent for an improved scythe. He died in 1683. Henry and James Leonard were also skilled workmen at the Lynn iron works. They and their descendants were afterwards connected with other colonial iron enterprises. They had a brother Philip, who does not appear to have lived at Lynn. Rev. Dr. Forbes, in referring to the Leonard family in his Topographical Description of the town of Raynham, written in 1793, says that " the circum- stance of a family attachment to the iron manufacture is so well known as to render it a common observation in this part of the country, " Where you can find iron works there you will find a Leonard." Henry and James Leonard are said to have learned their trade at Pontypool, in Monmouth- shire. The second iron enterprise that was undertaken in New England embraced a furnace and forge' at Braintree, about ten miles south of Boston. The works of Lynd and Braintree belonged to the same company. Bishop says that, on the 19th of November, 1643, a grant of 3,000 acres of the common land at Braintree was made to Mr. Winthrop and his partners, the Lynn company, " for the encouragement of an iron work to be set up about Monotcot river." But this grant, according to Lewis, was not surveyed until January 11, 1648. On the 29th of September, 1645, as stated by Lewis, the first purchase of land, consisting of twenty acres, " for a forge at Braintree," was made from George Ruggles by Richard Leader, who was the general agent for the com- pany of undertakers. The furnace was probably built in 1646. Robert Child, writing from Boston on the 15th of March, 1647, to John Winthrop, Jr., " at Pequot river," says of the Lynn and Braintree enterprises : " We have cast this winter some tuns of pots, likewise mortars, stoves, skillets. Our potter is moulding more at Brayntree as yet, which place after another blowing we shall quit, not finding mine there." We find, however, that iron ore was mined at Braintree in the early part of 1652, and that, on the 28th of September of that year, it was proposed at London, on behalf of the undertakers to employ William Osborne, " at Brantry furnas & fordges." Lewis states that in 1691 "iron ore, called ' rock mine,' was taken from the ledges at Nahant for the forge at Braintree." Henry Leonard is supposed to have superintended the erection of the Braintree works. John Giiford was the manager of the works, according to New- hall, and in 1651 he succeeded Richard Leader as agent for the works at Lynn. The next iron enterprise in New England was located in the town, or township, of Taunton, now Raynham, two miles from the city of Taunton, in Bristol county. This enterprise was undertaken in 1652 by Plenry and James Leonard and Ralph Russell. At a town meeting at Taunton, held October 21, 1652, " it was agreed and granted by the town to the said HCenry Leonard and James Leonard, his brother, and Ralph Russell, free con- sent to come hither and join with certain of our inhabitants and set up a bloomery work on the Two-mile river." The 'i'annton works, sometimes called the Raynham works, are referred to by Lewis as "Leonards' celebrated iron works." They were well managed, and long continued in a pros- perous condition. At these works bar iron was made di- rectly from the ore. As Henry Leonard was at Lynn in 1655, and as James Leonard does not appear to have been there after 1652, it is probable that the latter and his sons became the sole owners of the Raynham works. Dr. Forbes gives an account of the intimacy which existed between the Leonards at Raynham and King Philip, through which they were protected against Indian outrages. Sanford, in his History of Raynham, says: "Philip had a summer hunting seat near the Fowling pond. The Leonards had supplied him with beef, repaired his muskets, and fur- nished him with such simple tools as the Indians could use." Philip's head, says Dr. Forbes, was deposited in the cellar of James Leonard's house for a considerable time after his death in 1676. At the date of Dr. Forbes's book, 1793, this house was occupied by Leonards of the sixth gene- ration. The forge, says the writer, was situated on " the great road, and, having been repaired from generation to genera- tion, it is to this day still in employ." In William Read Dean's Genealogical Record of the- Leonard Family, published in 1851, it is stated that " the old forge, though it has been THE MINES, MINERS AND MINING INTEEESTS OF THE UNITED STATES. several times remodeled, has been in constant use for nearly two hundred years, and is now in the full tide of successful operation. It is owned by Thomas Dean, Esq., w^ho is de- scended from the Leonards." The forge was at that time employed in the manufacture of anchors. In 1865 it was Btill so employed, with six forge fires, two hammers and four water-wheels ; but about that time it ceased to be active and has not since been in operation. The works are now in a dilapidated condition. Theodore Dean was recently the owner. This forge is the oldest iron establishment in the country that is now in existence. Fowling pond, which was originally nearly two miles long and three-quarters of a mile wide, was close to the forge, and supplied it with ore. A blast furnace, for the manufacture of hollow-ware, was built on a branch of Two-mile river before the Revolution, and has long been abandoned. In Rioketson's History of New Bedford it is stated that " one of the earliest settlers of Dartmouth was Ralph Rus- sell, who came from Pontypool, England, and had been en- gaged in tfie iron business with Henry and James Leonard, of Taunton. He set up an iron forge at " Russell's Mills,' which place received its name from him." In 1657 the Gen eral Court of Massachusetts, owing to the failure of the undertakers at Lynn and Braintree to furnish the colony ■with a constant supply of iron, whereby unsufferable dam- age may accrew," granted to the inhabitants of Concord and Lancaster, and such as they should associate with them, " liberty to erect one or more iron workes within the limitts of theireoune toune bounds, or in any common place neere thereunto." That this grant resulted in the establishment of an iron work at Concord — since become famous through its association with the outbreak of hostilities between the mother country and the colonies in 1775 — appears probable from the grant by the Court in 1660, " to ye company in partnership in the iron worke at Concord,"' of " free liberty to digg mine without molestation in any lands now in the court's possession." About 1668 Henry Leonard went to Rowley Village, about 25 miles northeast of Lynn, as stated by Newhall, " and there established iron works." Lewis says that in 1674 Henry Leonard's sons, Nathaniel, Samuel, and Thomas, contracted to carry on these works for the owners whose names are given by Bishop as " John Ruck and others of Salem." The works did not prove to be pro- fitable. After establishing the Rowley works Henry Leo- nard went to New Jersey, " and there again engaged in the iron manufacture." At some time previous to his removal to New Jersey he appears to have been connected with the establishment of iron works at Canton, about 14 miles south of Boston. Other iron enterprises in Massachusetts speedily followed in the same century those that have been mentioned. In 1677 one of these works, the name of which has not come down to us, was destroyed by the Indians. About the same year iron was made at Topsfield, near Ips- wich, and in 1680 its manufacture was commenced at Box- ford. Hubbard, writing about 1677, says that at that time there were in the colonies " many convenient places, where very good iron, not much inferior to that of Bilbao, may be produced, as at this day is seen in a village near Topsfield, seven or eight miles west from Ipswich." About 1696 George Leonard is said to have erected " an iron-working establishment" at Newton, about 27 miles southwest of Bos- ton. For a hundred years after its settlement in 1620 Massachusetts was the chief seat of the iron manufacture on this continent. Most of its iron enterprises during this hun- dred years were bloomaries, but there were blast furnaces also, although the latter as a rule produced only hollow- ware and other castings, and not pig iron. During the per- iod mentioned the iron industry of Massachusetts was con- fined to the eastern counties of the colony, where bog and pond ores formed almost the only kinds of ore that were obtainable. The English settlement at New Haven closely followed Massachusetts in the manufacture of iron. John Winthrop, Jr., who removed from Lynn to Pequod, (New London,) Connecticut, in 1645, had obtained from the Gene- ral Court in the preceding year permission to set up an iron work, and in 1651 he obtained a grant of certain privileges to enable Mm to "adventure " in the manufacture of iron ; but he does not seem to have embarked in the iron business until subsequently. On the 30th of May, 1655, according to Bishop, it was ordered by the assembly of Ngw Haven " that if an iron worke goe on within any part of this juris- diction the persoBus and estates constantly and onely imploy- ed in that worke shall be free from paying rates." In 1658 Captain Thomas Clarke, in connection with John Win- throp and others, put in operation an " iron worke " at New Haven, and in 1659 he seems to have been still engaged in the same enterprise, for in that year the General Court of Connecticut continued the exemption already noted for ano- ther seven years, "for encouragement of the said worke in sup- plying the country with good iron and well wrought accord- ing to art." This enterprise embraced a blast fiirnace and refinery forge. On the 22d of June, 1663, John Davenporte wrote from New Haven to John Winthrop, Jr., as follows : "The freshest newes here, & that which is e re vestra, is, that they have bene blowing, at the iron worke, and ha\'e runne, from the last 6th day to this 2d day, 5 sowes of iron, which are commended for very good ; & this night it's thought they will run another, & begin to-morrow to make pots. The work is hopeful, but the workemen are thought to be very changeable and frovrard." This frowardness was due apparently to the influence of an old enemy of iron works, and ironworkers, John Barleycorn. Bishop records " a proposition made in May, 1662, ' in ye behalfe of Capt. Clarke, that wine and liquors drawn at the iron workes might be custome free,' which was allowed to the extent of one butt of wine and one barrel of liquors, and no more." Rhode Island made iron soon after its settlement in 1636 — certainly at Pawtucket and elsewhere as early as 1675, when the forge at Pawtucket, erected by Joseph Jenks, Jr., son of Joseph Jenks, the machinist at Lynn, was destroyed by the Indians in the Wampanoag war, together with other iron works and infant enterprises. A third Joseph Jenks was governor of Rhode Island from 1727 to 1732. The few forges and furnaces which were erected in this colony in the seventeenth and eighteenth centuries used bog or pond ore, and all or nearly all of them were located on the border of Bristol county, Massachusetts. Iron does not appear to have been made within the limits of Maine, New Bfampshire, or Vermont until the eighteenth century. Doctor James Thacher, in his valuable essay on the iron ores and iron enterprises of Plymouth county, Massachu- setts, printed in 1804, says : " The first furnace for smelting iron ore, known in the county of Plymouth, was erected in the year 1702 by Lambert Despard (a founder) and the family of Barkers, his associates, at the mouth of Matta- keeset pond in the town of Pembroke, but the wood in the vicinity being exhausted the works were long since aban- doned." In James Torrey's History of Scituate, in Plym- outh county, written in 1815, mention is made of an iron enterprise in the township of Scituate, as follows : " In 1648 Mr. Timothy Hatherly, the principal founder and father of the town of Scituate, requested liberty of the colony to erect an iron mill. It was granted in 1650, conditional to be erected within three years, or the privilege, certain wood- lands about Mattakeeset pond, (now Pembroke,) to revert to the colony. It did not, however, take place at that period, but ' a smelting furnace was erected on the precise grant, by Mark Despard and the family of Barker, about 1702.' " With the building of this furnace the iron history of Massachusetts in the eighteenth century may be said to begin. The enterprise of Despard and the Barkers was speedily followed by the erection of a bloomary forge on Bound brook, near Hingham, in 1703, by a company in which two brothers, Daniel and Mordeoai Lincoln, were partners. Mordecai Lincoln is supposed to have been an ancestor of Abraham Lincoln. In Torrey's History of Scituate mention is made of the erection of the Drinkwater iron works, near Abington, about 1710, by a person named Miehill, probably Rev. Thomas Mighill. The first slitting mill in the colonies, for slitting nail rods, is said by tradi- tion to have been erected at Milton, in Norfolk county, as early as 1710 ; but Bishop accords this honor to Middle-i borough, in Plymouth county, at a later day. About 1722 a bloomary forge was built at Bridgewater, which was active in 1750. In 1738 Hugh Orr, Scotchman, established at this place a gun factory, and about 1748 he made five hundred muskets for the province of Massachusetts Bay, which are believed to have been the first muskets manufactured in the country. Subsequently he established a cast-iron cannon foundry at Bridgewater,and was instrumental in promoting various other 36 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. manufacturing enterprises. In 1730 iron worlds were erected at Plympton, now Carver, which appear to have emhraced a blast furnace, as mention is made of iron tea-kettles hav- ing been cast at Plympton between 1760 and 1765. In 1731 there were officially reported to be in Massachusetts " several forges for making bar iron, and some furnaces for cast iron or hollow-ware, and one slitting mill, and a manufacture for nails." At the same time there were in all New Eng- land "six furnaces, meaning hollow-ware furnaces, and nineteen forges, meaning bloomaries, not refineries." " At that time," says Douglass, 'in his British Settlements, "we had no pig furnaces nor refineries of pigs " in New England. Eefineries were in use about twenty years later. In 1760 there were four slitting mills in Massachusetts— two at Middleborough, one at Hanover, and one at Milton ; also a plating-forge with a tilt-hammer, and one steel furnace. About 1750 Douglass thus described the iron industry of New England : Iron is a considerable article in our manufactures ; it consists of these general branches: (1) Smelting furnaces reducing the ore into pigs ; having coal enough and appearances of rock ore. In Attle- borough were erected at a great charge three furnaces, but the ore proving bad and scarce this projection miscarried as to pigs. They were of use in casting of small cannon for ships of letters of marque and in casting cannon-balls and bombs toward the reduction of Louisbourg. (2) Eefineries which manufacture pigs, imported from New York, Pennsylvania, and Maryland flirnaces, into bar iron. (3) Bloomeries, which, from bog or swamp ore, without any furnace, only by a forge hearth, reduce it into a bloom or semi- liquidated lump to be beat into bars, but much inferior to those from the pigs, or refineries. (4) Swamp ore furnaces; from that ore smelted they cast hollow- ware which we can afford cheaper than from England or Holland. Bog or swamp ore lies from half a foot to two feet deep. In about twenty years from digging it grows or gathers fit for another digging ; if it lies longer it turns rusty and does not yield well. Tliree tons of swamp ore yield about one ton of hollow-ware. One hundred and twenty bushels of charcoal are sufficient to smelt rock ore into one ton of pigs. The complement of men for a furnace is eight or nine, besides cutters of wood, coalers, carters, and other common laborers. In New England we have two slitting mills for nail rods : one in Milton, eight miles from Boston, and another in Middleborough, about thirty miles from Boston, which are more than we have occasion for. Our nailors can afford spikes and large nails cheaper than from England, but small nails are not so cheap. In New England they do not forge bar iron sufficient for their home consumption by bloomeries and refineries ; they import from Eng- land, New York, Jersies, Pennsylvania, and Maryland. The development of the rich iron ores of the Bertshire hills, in Western Massachusetts, commenced about 1750. A furnace was built at Lenox, in Berkshire county, in 1765, and it made pig iron in the following year. It had an ex- ceptionally high stack for that day — 28 feet high, and was blown with one tuyere. This furnace was torn down in 1881. Previous to 1773 a furnace was built at Furnace Vil- lage, in Worcester county, and a few years after that date there were several bloomaries and one refinery forge in the same county. In 1793 the county contained several manu- factories of edge tools, hardware, machinery, etc. In the township of Sutton there were at this time one axe, one hoe and five scythe manufactories, and several naileries. In the whole county there were seventeen trip-hammers. At Springfield, in Hampden county as stated by Bishop, some cannon were cast and some forging was done during the Revolutionary war, but small arms were not made until after the peace. The Government armory at Springfield was established in 1794. While the iron manufacture of Massachusetts was thus being extended westward it con- tinued to make rapid progress in the eastern counties. Charlotte furnace at Middleborough was built in 1758, and was in operation for many years. Eiuring our two wars with the mother country it was employed in casting shot and shells. The shot which the Constitution carried in her con- flict with the Oaerrilre were cast at this furnace. In 1784 there were seventy-six iron-works in Massachusetts, " many of them small." At Amesbury, in Essex county, a furnace was erected about 1790, and at Boxborough, in Middlesex county, a bloomary forge was built about the same time. In 1795 Dr. Morse reported eleven slitting mills in Bristol, Norfolk, and Plymouth counties, which rolled and cut in that year 1,732 tons of iron into hoops and nail rods. Bishop says that " the two counties of Plymouth and Bristol had in operation in 1798 fourteen blast and six air furnaces, twenty forges, and seven rolling and slitting mills, in addi- tion to a number of trip hammers and a great number of nail and smith shops. Cut and hammered nails, spades and shovels, card teeth, saws, scythes, metal buttons, cannon balls, bells, fire arms, sheet iron for tin ware, wire, etc., were made in large quantities." Steel was made from crude iron at Canton about 1797 " by the German process." In 1804 there were ten blast furnaces in Plymouth county, all producing castings exclusively. In 1830 only three of these were left — Charlotte, Federal, and Pope's Point, all in Car- ver township, and all in operation. There were also in 1804 ten forges in the same county, which were principally employed in working " old iron scraps," broken pots, kettles, etc., and produced in all about 200 tons of bar iron per annum. Dr. James Thacher, who was a part owner of Federal furnace, wrote in 1804 a description of this furnace, which was built in 1794, and is said by him to have been the most valuable furnace with which he was acquainted, the manufacture of castings being "there prosecuted to great extent and advantage." The furnace was built of stone, as were all other Plymouth furnaces. It was 20 feet high and 24 feet square, its walls being 7 feet thick and its interior 10 feet in diameter. Charcoal was the only fuel used, and marine shells formed the only fluxing mate- rial. The furnace was lined with " fire-stone" composed of "soft slate." A brick funnel at the top of the stack served "to convey off the blaze and smoke." The Doctor con- tinues his description as follows : At the bottom of an arch in the front of the furnace is an aper- ture, from which the workmen remove the scoria and dip out the metal. And in another arch on one side there is a small aperture for the insertion of the pipes of two large bellows 22 feet long and 4 feet wide, which being kept in constant alternate motion by the agency of a water-wheel 25 feet diameter, a powerful current of air is excited; and being impelled upon the surface of the fuel the fusion of the metal is greatly accelerated. The whole of this machinery is included in a large wooden building, affording accom- modation to the workmen with their apparatus for moulding and casting. The specific articles manufactured at the Federal furnace are, besides hollow-ware of every description, Seymour's patent rolls for slitting mQls, of a superior quality, cast in iron cylinders, potash kettles, stoves, fire-backs and jambs, plates gudgeons, anvils, large hammers, cannon shot of every kind, with a vast variety of ma- chinery for mills, etc. The ores used in the furnaces and bloomaries of eastern Massachusetts were chiefly bog and pond ores. Dr. Thacher says, however, that in 1804 "a very considerable proportion of ore smelted in our furnaces is procured from the very productive mines at Egg Harbor, in the state of New Jersey, of a reddish brown color, producing from 30 to 40 per cent, of excellent iron. The usual price is $6.50 per ton." He also says that "reddish brown" ore in large lumps was ob- tained from a mine on Martha's Vineyard, " aflfording about 25 per cent, and worth $6 per ton." The pond ores con- tained from 20 to 30 per cent, of iron, and the average price was about $6 per ton at the furnace. Bog ore, found in swamps and other low places, was of a " rusty-brown color, yielding about 18 per cent, and worth $4 per ton at the furnace." The following letter from the Rev. Isaac Backus, of Middleborough, dated July 25, 1794, gives a description of the manner in which pond ores were obtained. Vast qnantities of iron, both cast and wrought, have been made in this part of the country for more than a hundred years past; but it was chiefly out of bog ore, until that kind was much ex- hausted in these parts, and then a rich treasure was opened in Middle- borough, which had been long hid from the inhabitants. About the year 1747 it was discovered that there was an iron mine in the bottom of our great pond at Assowamset ; and after some years it became the main ore that was used in the town, both at furnaces and forges, and much of it has been carried into the neighboring places for the same purpose. Men go out with boats, and make use of instruments much like those with which oysters are taken to get up the ore from the bottom of the pond. I am told that for a number of years, a man would take up and brint; to shore two tons of it in a day; but now it is so much exhausted' that half a ton ia reckoned a good day's work for one man. But in an adjacent pond THE MINES, MINEES AND MINING INTEEESTS OF THE UNITED STATES. 37 is now plenty, where the water is twenty feet deep, and much is taken up from that depth, as well as from shoaler water. It has also been plenty in a pond in the town of Carver, where they have a furnace upon the stream which runs from it. Much of the iron which is made from this ore is better than they could make out of bog ore, and some of it is as good as almost any refined iron. The quantity of this treasure, which hath been taken out of the bottom of clear ponds, is said to have been sometimes as much as five hun- dred tons in a year. In 1735 Samuel Waldo erected a furnace and foundry on the Pawtuxet river, in Ehode Island, which were afterward known as Hope furnace. They are said to have been the most important iron works in the state during the eighteenth century. Cannon and other castings were made here, During the Eevolution they were active in producing can- non, cannon balls, and other munitions of war. About the , year 1735 three other furnaces were erected in Cumberland township, in the northeastern part of the state, but they seem to nave been abandoned before the Eevolution. They made "cannon, bombs, and bullets" during the French war of 1755. Before 1800 a slitting mill had been erected on one of the branches of Providence river; a slitting and rolling mill at Pawtucket falls ; and other iron-manufactu- ring establishments in various parts of the state. Bishop says that " manufactures of iron, including bar and sheet iron, steel, nail rods and nails, farming implements, stoves, pots, and other castings and household utensils, iron works for shipbuilders, anchors, and bells formed the largest branch of productive industry in the state toward the close of the eighteenth century." Litchfield county, in northwestern Connecticut, contains iron-ore mines of great value, from which the ore for the celebrated "Salisbury iron" has been taken for a hundred and fifty years. This ore is of a similar quality to that found in Berkshire county, Massachusetts, already referred to. As early as 1734 a bloomary forge was erected at Lime Eock, in Litchfield county, by Thomas Lamb, which pro- duced from 500 to 700 pounds of iron per day. About 1748 a forge was erected at the village of Lakeville, in the same county, and in 1762 John Haseltine, Samuel Forbes, and Colonel Ethan Allen purchased the property and built a blast furnace, but soon afterwards sold it to Charles and George Caldwell, of Hartford. It made two and a half tons of iron in twenty-four . hours, and three tons of ore and 250 bushels of charcoal were used per ton of iron. Its blowing apparatus consisted of a pair of leather bellows driven by a water-wheel. In 1768 the furnace was sold to Eichard Smith, of Hartford. Smith was a royalist, and fled to England during the Eevolution, but his furnace was made to produce large quantities of cannon, cannon balls, shells, etc., for the Continental army. After the Eevolution it made cannon for the navy, potash kettles weighing nearly half a ton each, and pig iron for forges and foundries. Many bloomary forges were erected in this country about the close of the last century. One of these was built on Mount Eiga, about five miles north of Lakeville, in 1781, by Abner or Peter Woodin. It was afterwards owned by Daniel Ball, and was called Ball's forge. About 1806 Seth King and John Kelsey commenced to build a furnace on Mount Eiga, but were not able to finish it, and in 1810 it fell into the hands of Holley & Coffing, who completed it in that year and operated it for many years. Twenty-seven furnaces have been built and operated within a radius of thirty miles of Lakeville, a few of which were in New York and Massachusetts, but the majority were in Connecticut. At the close of the eighteenth century Litchfield county contained fifty bloomary forges, making iron directly from the ore, and three slitting mills. At the same time the county was so prominent in the manufacture of nails that only Plymouth and Bristol counties in Massachusetts, of all the nail-making districts in the country, exceeded its pro- duction. The iron of Litchfield county is now entirely used for foundry purposes and most of it in the manufacture of car wheels. Bishop says that Oldmixon mentions " a small iron mill" at Branford, in New Haven county, in -1741, on a small stream, running into Long Island sound, and adds that on many of the small streams and branches of the rivers which fall into the sound "bloomaries and small works for a variety of manufactures in iron were established, some of them quite early." The bloomaries were in part supplied with bog ore, " dug near them," and in part with better ores obtained elsewhere. Bishop also says that in 1794 a slitting mill and other iron works had been erected in East Hartford, a forge at Glastonbury, and two furnaces at Stafibrd " which made sufficient hollow and cast-iron wares for the whole state." Lesley says that there were at one time, about the beginning of the present century, three blast flirnaces in northern Connecticut, near the Massachu- setts line, on a branch of Willimantic river, a mile or two apart. Three forges near them converted their pig iron into bar iron. Hebron furnace was south of the above mentioned furnaces, and Enfield forge stood a few miles east of Windsor Locks. All these ftirnaces and forges were stopped about 1837, when Scotch pig iron began to come into the country. Connecticut was among the first of the colonies to make steel. Bishop relates that in 1728 Joseph Highby, " an ingenious blacksmith," of Simsbury, Hartford county, represented to the legislature that he had, " with great pains and cost, found out and obtained a curious art, by which to convert, change, or transmit common iron into good steel, suflicient for any use, and was the very first that ever performed such an operation in America." The certificates of several smiths, who had made a trial of the steel and pronounced it good, were produced. He and Joseph Dewey were granted the exclusive right for ten years " of practicing the business or trade of steel-making." A "steel furnace" was owned by George Eliot, of Killingworth, in Middlesex county, previous to 1759, and in 1761 the Eev. Jared Eliot, of the same place, father of the above-mentioned George Eliot, succeeded in producing in a common bloom- ary forge a bar of excellent iron, weighing 60 pounds, from 83 pounds of black magnetic sand, and in his son's steel furnace a portion of the bar was converted into good steel. For this discovery he was awarded a gold medal in 1764 by the London Society of Arts. But this sand, which is found in the southern parts of Connecticut, as well as in other states, never received much further attention for conversion into iron or steel. Iron ore was discovered near Ports- mouth, in New Hampshire, as early as 1634, some of which was shipped to England, but there is no evidence that its discovery led to the establishment of any ironworks in that century. The manufacture of iron in this state dates from about 1750, when several bloomaries, using bog ore, were in existence on Lamper Eel river, but were soon discontinued. About the period of the Eevolution there were a few bloom- aries in operation in the state. In 1791 mention is made of iron works at Exeter. At Furnace Village the magnetic ore of Winchester was first smelted in 1795 by a Ehode Island company. Franconia furnace, in Franconia county, was built in 1811 by a company which was organized in 1805. Maine had a few bloomary forges in York county during the Eevolution and for some years afterwards, but she has had but few blast furnaces. A small furnace, capable of yield- ing a ton and a half of iron daily, was erected at Shapleigh, in York connty, about 1838. It was used to produce cast- ings, and cost but $13,000. A larger furnace in Piscataquis county, called Katahdin, was built in 1845, and is now active. This is the only furnace now in the state. At an early period in its history it was successfully operated for several years by Hon. John L. Hayes, now of Cambridge, Massa- chusetts. A forge was erected near the furnace soon after 1845. In 1853 it made 700 tons of blooms. There were in 1880 two rolling mills in Maine — one at Portland and one at Pembroke. The manufacture of iron vpas commenced in Vermont about 1750. Large deposits of iron ores similar to those of western Massachusets and western Connecticut had previously been found in the southern and western parts of the state. In Eutland county a mine was opened . in 1785, and in 1794 there were fourteen forges, three fur- naces, and a slitting mill in the county. In other counties there were seven forges in 1794 — one in Bennington, four in Addison, and two in Chittenden counties, and before 1800 other forges and a slitting mill were added ; possibly some furnaces, the township of Eandolph, in Orange county, had two forges and a slitting mill at the same period About the beginning of the nineteenth century there were twenty bloomaries in the neighborhood of Vergennes, in Addison county, all built with Boston capital. The manu- facture of nails was one of the household industries of New England during the eighteenth century. In a speech in 38 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. Congress ia 1789 Fisher Ames said : " It has become common for the country people in Massachusetts to erect small forges in their chimney corners ; and in winter, and in evenings, when little other work can be done, great quanti- ties of nails are made even by children. These people take the rod iron of the merchant and return him the nails, and in consequence of this easy mode to barter the manufacture is prodigiously great." In a description of the town of Middle- borough, in Plymouth county, Massachusetts, written in 1793 by Nehemiah Bennet, it is mentioned that "the most common and general employment of the inhabitants of said town is agriculture, which seems to be increasing ; though there are a number of mechanioks. Nailing, or the business of making nails, is carried on largely in the winters, by the farmers and young men, who have but little other business at that season of the year." When Jacob Perkins, of New- buryport, Massachusetts, invented his machine for making cut nails, which was patented in 1795 and speedily followed by other inventions for the same purpose, the occupation of making wrought nails in the chimney corner virtually came to an end. The manufacture of tacks by hand was also a New England household industry during the last century, and down to about fifty years ago. A writer in the Furniture Trade Journal thus describes this industry : " In the queer- shaped, homely farm-houses, or the little contracted shops of certain New England villages, the industrious and frugal descendants of the Pilgrims toiled providently through the long winter months at beating into shape the little nails which play so useful a part in modern industry. A small anvil served to beat the wire or strip of iron into shape and point it ; a vice, worked by the foot, clutched it between jaws furnished with a gauge to regulate the length, leaving a certain portion projecting, which, when beaten flat by a hammer, formed the head. By this process a man might make, toilsomely, perhaps 2,000 tacks per day." Nearly all the bloomary and refinery forges and blast farnaces of New England have long disappeared, and in their stead have grown up reproductive iron industries of almost end- less variety and vast extent, employing large numbers of skilled mechanics and adding greatly to the productive wealth of the country. The rolling mills, machine shops, hardware establishments, nail and tack factories, foundries and other iron enterprises of New England, together with a few steel works and modern blast furnaces, form to-day a striking contrast to the ore bloomaries, not much larger than a blacksmith's fire, and the small charcoal furnaces and chimney-corner nail factories of the last century. " All that," says Lesley, "has given way and disappeared before the inventive spirit of New England, sustained and incited by the wealth of its commercial cities." — Compiled from James M. Swank's Report on Iron and Steely Tenth Census of the U. 8_ EARLY IRON ENTERPRISES IN THE MIDDLE, SOUTHERN AND WESTERN STATES. THE following paragraphs will furnish the reader with interesting historical memoranda concerning iron and iron industry in the different states other than those of New England : New York. — Peter Kalm, the Swedish traveler, writing in 1748, says of the commerce of New York : " Of late years they have shipped a quantity of iron to England." Some of this iron was made in Connecticut and New Jersey. Doug- lass in his British Settlements, written in 1750, speaking of New York says: " The article of iron in pigs and bars is a grow- ing affair." Bishop says that iron works were established in Orange county prior to 1750, but by whom he does not state. In 1760 Governor Clinton reported that, at a place called Wawayanda, in Orange county, about twenty-six miles from the Hudson, there was a planting-forge with a tilt-hammer, which had been built four or five years before, but was not then in use. It was the property of Lawrence Scrawley, a blacksmith. It was the only mill of that kind in the pro- vince. There was no rolling or slitting mill or steel furnace at that time in the province." In 1750 a vein of magnetic iron ore was discovered on Sterling mountain, in Orange county, and in 1751 Ward & Colton built a furnace at the outlet of Sterling pond. In Eager's Bistort/ of Orange County it is stated that " at the early establishment of this furnace the charcoal used was transported several miles on the backs of horses from the mountains where it was burned, there being no roads at the time." Bishop says that in 1752 "Abel Noble, from Bucks county, Pennsylvania, erected a forge in Monroe, near the furnace, at which anchors are said to have been made." Eager says that the first anchor made in New York was made at this forge in 1753. In 1765 William Hawkhurst published an advertisement stating that he had lately erected " a finery and great hammer for re- fining the Sterling pig iron into bars," but the location of this enterprise is not mentioned. The farnace of Ward & Col- ton and the forge of Abel Noble became the property of Peter Townsend before the Eevolution. They had named the Sterling iron works, presumably after Lord Stirling, the owner of the land, who became a general in the Continental army, and who was engaged in the manufacture of iron in New Jersey before the Eevolution. He may have been part owner of the Orange county enterprises. (The Sterling works have always been spelled as here given, but Lord Stirling's name was differently spelled.) In 1773 Mr. Town- send made anchors at Sterling. We are informed by Mr. A. W. Humphreys that the anchors of the United States frigate Constitution were made here, as well as the anchors for the first ships of war that carried the stars and stripes. In 1777 " the Townsends " had two forges with eight forge fires. In 1776 Mr. Townsend, according to Bishop, "produced the first steel in the province, at first from pig and afterwards from the bar iron, in the German manner." Bishop also says that " the first blister steel made . in the state was made by Peter Townsend, Jr., in 1810, from ore of the Long mine on the Sterling estate." This mine was discovered in 1761 by David Jones. Other valuable mines than those mentioned were discovered and opened on the Sterling estate in the last century. In 1777 a second Sterling furnace was erected by the Townsends, and in 1806 Southfield furnace was built, about six miles distant from the Sterling mines, and is still standing. The two early Sterling furnaces have made way for one modern stack. Other mines of rich ore were discovered in Orange county during the last century, and many furnaces and forges were built in connection with them which have long been aban- doned. In 1756 there was a Forest of Dean furnace five miles west of Fort Montgomery, which was supplied with ore from the Forest of Dean mine, near which it stood. The furnace was abandoned twenty-one years later. Eager says that " Captain Solomon Townsend, a cousin of Peter Townsend, and who married his daughter Anne in 1783, purchased the mountain estate adjoining that of his father-in-law, which he named Augusta, and established the iron works, anchory, forges, etc., at the place." These works were on the Eamapo, three miles above the Orange county line, in Orange county. There was a forge and anchory on Mur- derer's creek during the Eevolution, owned by Samuel Brew- ster; after the war they passed into the hands of his son-in- law, Jonas Williams. Queensborough furnace, which went out of blast about 1800, and which was built to make pig iron, was located about two and a half miles southwest of Fort Montgomery. On the stream issuing from Hazzard's pond there was a furnace named Woodbury about the beginning of this century. During the last century Orange county was the chief seat of the iron manufacture in New York. Greenwood furnace, in this county, w.is erected in 1811 by the Messrs. Cunningham. In 1871 it was the only charcoal furnace in Southern New York that remained in blast ; since that year it also has been silent. In 1765 there were iron works in Duchess county. A fur- nace and foundry at Amenia in this county were in opera- tion during the Eevolution, "at which steel and castings were made for the use of the army." A bloomary was in operation about the period of the Eevolution at Patchogue, in Brookhaven township, Suffolk county. Long Island. At Eiverhead, in Suffolk county, Captain Solomon Townsend established " a manufactory of bar iron " before the close of the last centuiy. Iron ore was mined in Putnam county in the last century, some of which was taken to iron works on Long Island sound. In the manor of Philipsburg, in West- chester county, iron ore was mined and furnaces were THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 39 erected before the close of the same century. About the time of the Revolutioa a furnace named Haverstraw and several bloomaries were in existence in Rockland county, on the western side of the Tappan Zee. About the year 1800 the celebrated Champlain iron district was developed, and in 1801 the first iron works in the district were built at Wills- borough falls, on the Boquet river, in Essex county, to manu- facture anchors. George Throop, Levi Highly, and Charles Kane were the owners. Among other early iron enterprises in this district were the New Russia, Jay and Elba forges in Essex county, and the Eagle rolling mill at Keeseville, in Clinton county. This district is now and'for a long time has been the most important iron district in the state. It now contains six rolling mills, six blast furnaces, and twenty -two forges. The forges are all true bloomaries, manufacturing blooms, chiefly for conversion into steel, directly from the rich magnetic and specular ores of the neighborhood. The district comprises the counties of Essex, Clinton, and Frank- lin. A forge was built at West Fort Ann, in Washington county, south of Lake George, about 1802. West of the Champlain district, in the counties of Saint Lawrence, Jefferson, Lewis, Oswego, and Oneida, many charcoal fur- naces were built after the beginning of the present century, among the earliest of which were Rossie furnace in Saint Lawrence county, Taberg furnace in Oneida county, and Constantia furnace in Oswego county. In the extreme western and southwestern parts of the state the few iron en- terprises that have had an existence during the present century have all been of yet more modern origin. Nails were extensively manufactured by hand at Albany in 1787. Twenty years later, in 1807, John BrinkerhoflF, of Albany, lighted the fires in his newly-erected rolling mill on the Wynantskill. The Troy Daily Times says that " the opera- tions of the little wooden rolling mill built bjr him were con- fined to converting Russian and Swedish bar iron into plates, which were slit into narrow strips, and these cut into re- quired length and made into nails by hand." In 1826 the nail factory of John Brinkerhoff was sold at auction, and was purchased for $5,280 by Erastus Corning, who was then engaged at Albany in the hardware business. It now forms part of the works of the Albany and Rensselaer Iron and Steel Company, the most extensive and important iron and steel works in the state. The iron industry of New York was not so prominent during the eighteenth century as that of some other states, but soon after the beginning of the present century the development of the Champlain district gave to the industry more prominence, which was still fur- ther increased after 1840, when anthracite coal was applied to the manufacture of pig iron on the Hudson river and elsewhere in the state. In 1870, and again in 1880 it ranked third in the list of iron and steel producing state". New Jersey. — In William Reed Deane's Genealogical Memoirs of the Leonard Family, already referred to, it is stated that Henry Leonard left Rowley Village, Massachu- setts, early in 1674, "and at that time, or soon after, went to New Jersey, estal3lishing the iron manufacture in that state." His sons, Samuel, Nathaniel, and Thomas, probably left Rowley Village soon after their father's departure, and followed him to New Jersey. Bishop says that Shrewsbury, a township lying northwest of Long Branch, in Monmouth county, was settled by Connecticut people soon after New Jersey was surrendered to the English by the Dutch in 1664, and that it was "to this part of Jersey" that Henry Leonard removed. About the time of the Connecticut settlement, James Grover, who had been a resident of Long Island, also settled in Shrewsbury, and is said to have established iron works in that township, which he afterwards sold to Colonel Lewis Morris, then a merchant of Barbadoes, but born in England. On October 26, 1676, a grant of land was made to Colonel Morris, with full liberty to him and his heirs " to dig, delve, and carry away all such mines for iron as they shall find or see fit to dig and carry away to the iron work," which establishes the fact that the iron works in Shrews- bury were built prior to 1676, and that they were then owned by Colonel Morris. They were probably undertaken about 1674, in which year Henry Leonard is said to have emi- grated from Massachusetts to New Jersey. They were the first iron works in New Jersey. In a brief account of the province of East Jersey, pub- lished by the proprietors in 1682, it is stated that " there is already a smelting fiirnace and forge set up in this colony, where is made good iron, which is of great benefit to the country." Smith, in his History of New Jersey, says that in 1682 " Shrewsbury, near Sandy Hook, adjoining the river or creek of that name, was already a township, consisting of several thousand acres, with large plantations contiguous ; the inhabitants were computed to be about 400. Lewis Morris, of Barbadoes, had iron works and other considerable improvements here." In 1686 it was stated in The Model of the Government of East New Jersey that " there is an iron work already set up, where there is good iron made." In the same year Thomas Budd, in his Good Order in Pennsyl- vania and New Jersey, wrote that there was but one iron work in New Jersey, and that this was located in Mon- mouth county. All of these statements refer to the Shrews- bury works, which do not seem to have had a long life. According to Oldmixon, they were located between the towns of Shrewsbury and Middletown. They used bog ore. The rich deposits of magnetic iron ore in northern New Jersey were discovered at an early day, and about 1710, as we are informed by the Rev. Dr. Joseph F. Tuttle, in his Early History of Morris Couniy, written in 1869, settlements were made on the Whippany river, in Hanover township, in Morris county ; and at a place now called Whippany, four miles northeast of Morristown, a forge was erected. Bishop says that the first settlers of Hanover located there "for the purpose of smelting the iron ores in the neighborhood." They "early erected several forges and engaged exten- sively in the iron manufacture." Whippany is about fifteen miles east of the celebrated Succasunna iron ore mine, in the present township of Eoxbury, and it was here that the settlers obtained their supply of ore. The ore was carried to the works in leather bags on pack-horses, and the iron was carried in the same way over the Orange mountains to Newark. Bishop says that " forges at Morristown, and some in Essex county, were long supplied in the sapie way from the rich ore of the mine. The ore was for some time free to all." Dr. Tuttle says: "The Succasunna mine lot was located in 1716 by John Reading, and sold the same year to Joseph Kirkbride, containing 558- acres, and after his death the tract was divided between his three sons, Joseph, John, and Mahlon Kirkbride, except the mine lot, which was held by them in common until such time as the same should be sold." This celebrated iron-ore deposit has long been known as the " Dickerson mine." Dr. Tuttle says that in 1722 Joseph Latham sold a tract of land in the present township of Mendham, in Morris county, to "one John Jackson, who built a forge on the little stream which puts into the Rockaway near the resi- dence of Mr. Jacob Hurd. The forge was nearly in front of Mr. Hurd's house," a mile west of Dover. Wood for charcoal was abundant, and the mine on the hill was not far distant. For some reason Jackson did not succeed in his iron enterprise, and was sold out by the sheriff 1753. Dr. Tuttle says that Rockaway was settled about 1725, or possibly as late as 1730, " at which time a small iron forge was built near where the upper forge now stands in Rocka- way, Denmark, Middle Forge, Ninkee, Shaungum, Frank- lin." This statement fixes the date and location of the first forge at Rockaway. The Doctor says that subsequently " forges were built on different streams at Rockaway and other places from the year 1725 to 1770." At Troy, in Morris county, as we learn from another source, a forge was built in 1743, which was in operation as late as 1860. All these forges were bloomaries, manufacturing bar iron from the ore. At the close of the seventeenth century and for some years after the beginning of the eighteenth century New Jersey was the only colony outside of New England that was engaged in the manufacture of iron, and this manufac- ture was almost wholly confined to its bloomaries. The rich magnetic ores, the well-wooded hillsides, and th6 rest- less mountain streams of Northern New Jersey afforded every facility for the manufacture of iron of a superior quality by this primitive method, while the nearness of good markete furnished a sufficient inducement to engage in the business. The bloomaries of New Jersey were Catalan forges of the German type. Not much progress was made, however, in the establish- ment of the iron industry in New Jersey until the middle 40 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. of the eighteenth century. From about 1740 down to the Revolution many flirnaces and other iron works were built in New Jersey. Its iron industry during the greater part of this period was exceedingly active, although greatly ham- pered by restrictions imposed by the mother country. To the iron enterprises which were then built up within its borders the patriotic cause was afterwards greatly indebted for much of the iron and steel that were needed to secure its ascendency. Peter Hasenclever, a Prussian gentleman of distinction, who is usually referred to as Baron Hasenclever, emigrated to New Jersey in 1764, as the head of an iron company which he had organized in London, and brought with him a large number of German miners and ironworkers. The Eingwood Company, which was organized in 1740 and was principally composed of several persons named Ogden. In the year named and in 1764 the company purchased about thirty acres of land at Ringwood, near Greenwood lake in Bergen, now Passaic county. By one of the purchases of 1764 Joseph Board conveys to the company a tract of land at Ringwood, near Greenwood lake, in Bergen, now Passaic county. By one of the purchases of 1764 Joseph Board conveys to the company a tract of land at Ringwood " near the old forge and dwelling house of Walter Erwin." On July 5, 1764, the Ringwood Company sell to " Peter Hasen- clever, late of London, merchant," for £5,000 all of the company's lands at Ringwood. The deed states that on the property there are " erected and standing a furnace, two forges and several dwelling-houses." It speaks of " Timothy Ward's forge ;" also of the " old forge at Ringwood." Hasen- clever also bought from various persons other tracts of land in 1764 at Ringwood and in its vicinity, and in 1765 he bought several tracts of land from Lord Stirling. These various purchases were located at Ringwood, Pompton, Long Pond, and Oharlottenburg, all in Bergen county. Hasenclever also probably purchased an interest in the iron- ore mines at Hibernia. Dr. Tuttle says that " Hasenclever at once began to enlarge the old works and build new ones at each of the places just named," that is Ringwood, Pomp ton. Long Pond, and Oharlottenburg. It is probable that he built a furnace and one or more forges at each place. Three furnaces and six forges he certainly erected. The furnaces were erected, respectively as follows : Oharlotten- burg, on the west branch of the Pequannock ; Ringwood, on the Ringwood branch of the Pequannock ; Long Pond, on the Winockie, and about two miles from Greenwood lake. Oharlottenburg was built in 1767, and was capable of producing from 20 to 25 tons of pig iron weekly. Long Pond was in blast in 1768. Hasenclever undoubtedly succeeded in making good iron some of which was shipped to England. He also made steel of good quality directly from the ore. In 1768 he be- came financially embarrassed, and in 1770 was formally declared a bankrupt. He was succeeded in the manage- ment of the company's works by John Jacob Faesch, who had come to New Jersey with him, under an engagement as manager of the iron works for seven years. Faesch was a native of Hesse Cassel. He is said to have mismanaged the affairs of the company, and in 1771 or 1772 was succeeded by Robert Erskine, a Scotchman, who appears to have met with success until 1776, when all the works were stopped by the opening of hostilities, and Oharlottenburg furnace was accidentally burned. The Adventure furnace, at Hibernia, in Morris county, was a famous furnace during the Revolu- tion, casting ordnance and other iron supplies for the army. It was built about 1765. Mr. Halsey says that a tract of land was located November 23, 1765, " about three-quarters of a mile above the new furnace called the Adventure." The name usually given to this furnace is Hibernia. Dr. Tuttle says that " the names of Lord Stirling, Benjamin Oooper, and Samuel Ford are connected with the original building and ownership of the Hibernia works." Mount Hope furnace, about four miles northwest of Rockaway, was built in 1772 by John Jacob Faesch. It was active until about 1825. It also was a noted furnace during the Revolu- tion, casting shot and shells and- cannon for the Continental army. In September, 1776, Joseph HofT, who was at this time manager of Hibernia furnace, wrote to its owner that Faesch had spoken to him " to inform you that he wanted 200 tons of pig metal, and wanted to know your price and terms of payment. Iron will undoubtedly be in great de- mand, as few works on the continent are doing anything this season." This letter indicates that at the time it was written Faesch owned or controlled a forge for converting pig iron into bar iron. On the 14th of November, 1776, Hoff wrote to General Knox that there were then 35 tons of shot at Hibernia furnace, and on the 2l8t of November he wrote that it was the only furnace in New Jersey which he knew to be then in blast. The Hibernia and the Mount Hope furnaces were both in blast in 1777. Mr Halsey in- forms us that among the laws of New Jersey for 1777 is an act, passed October 7, exempting men to be employed at Mount Hope and Hibernia furnaces from military services and reciting the necessity of providing the army and navy of the United States with cannon, cannon shot, etc., and that the works " have been for some time past employed " in providing such articles and " are now under contract for a large quantity." Colonel Jacob Ford, Sr., was a large landholder in Morris county about the middle of the last century. In 1736 he was the owner of " iron works " at Mount Pleasant, three miles west of Rockaway. There was a forge at this place as late as 1856, but almost in ruins. In 1764 John Harriman owned a forge called Burnt Meadow-forge, at Denmark, about five miles north of Rockaway, of which Colonel Jacob Ford, Jr., afterwards became the owner. Colonel Ford also about the same time became the owner of the forge below Denmark and above Mount Pleasant, called ever since Middle forge, which was built on land located by Jonathan Osborne in 1749. The United States Government'now owns the site of the forge last mentioned. John Johnson had " iron works " at Horse Pound, now Beach Glen, a mile and a half below Hibernia, from 1753 to 1765, as appears from references to them in the title papers of adjoining lands. In Andover township in Sussex county, a furnace and forge was erected by a strong company before the Revolution, probably about 1760, and the works were operated on an extensive scale. About the beginning of hostilities the works were stopped, the company being principally com- posed of royalists. The excellent quality of the iron made from the ore of the Andover mine led, however, to such legislation by Congress in January, 1778, as resulted in again putting them in operation. Mr. Whitehead Hum- phreys, of Philadelphia, was directed by Congress to make steel for the use of the army from Andover iron, as the iron made at the Andover works was the only iron which would "with certainty answer the purpose of making steel." The action of Congress is given in detail by the Hon Jacob W. Miller, in his address before the New Jersey Historical Society in 1854, who also records the interesting fact that William Penn was an early owner of the Andover mine. He says that, "on the 10th of March, 1774, by a warrant from the council of proprietors, he acquired title to a large tract of land, situated among the mountains, then of Hunterdon, now of Sussex, county, and William Penn be- came the owner of one of the richest mines of iron ore in New Jersey. This mine, since called Andover, was opened and worked to a considerable extent as early as 1760. Tra- dition reveals to us that the products of these works were carried upon pack-horses and carts down the valley of the Mosconetcong to a place on the Delaware called Durham and were thence transported to Philadelphia in boats, which were remarkable for their beauty and model, and known as Durham boats to this day." Israel Acrelius, the historian of New Sweden, who resided in this country from 1750 to 1756, mentions five iron enterprises then existing in New Jersey— the Union iron works, and Oxford, Sterling Os- den's, and Mount Holly furnace. Oxford furnace on a branch of the Request river, at Oxford, in Warren countv was built by Jonathan Robeson in 1742. Tradition says that it was first blown by a water-blast. A pig of Oxford iron bearing the date '^'1755,'' is now in possession of the Historical Society at Trenton. Oxford cannon balls, cast during the French war, have also been preserved Cannon balls were cast at this furnace for the Continental ^^'^I'cn '^^^ furnace is still standing and was in operation in 1880, using anthracite coal. It is the second furnace in New Jersey of which there is any exact record, the Shrews- bury furnace being the first. It divides with Cornwall fur- nace, in Pennsylvania, the honor of being the oldest furnace THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 41 in the United States that is now in operation. The Union iron works were situated near Clinton, in Hunterdon county, and embraced at the time of Acrelius's visit two furnaces and two forges, " each with two stacks ; " also a trip- hammer and a " flatting-hammer." These works were then owned by William Allen and Thomas Turner, of Philadel- phia. William Allen was chief justice of Pensylvania from 1751 to 1774. Allentown, in Pennsylvania, was named after him. He was largely interested in the manufacture of iron in Pennsylvania and New Jersey. In October, 1775, he gave his " half of a quantity of cannon shot belonging to him and to Turner for the use of the Board of the Council of Safety;" but he remained loyal to the British crown, nevertheless, dying in London in 1780. The Union iron works appear to have been entirely abandoned in 1778. Judge Allen informed Acrelius that at the Union iron works, and also at Durham, (hereafter to be mentioned), one and a half tons of ore yielded one ton of pig iron, and that a good furnace yielded from twenty to twenty-five tons of pig iron weekly. Ogden's furnace was situated near Newton, in Sussex county. Mount Holly furnace was situ- ated at the town of that name, in Burlington county. It was built between 1730 and 1747, and is probably as old as Oxford furnace. A forge was connected with the furnace. The works stood where the saw-mill at the south end of Pine street, on Rancocas creek, now stands. All of the fur- naces named, except Mount Holly, used magnetic ore; Mount Holly, according to Acrelius, used " brittle bog ore in gravel," which was only serviceable for castings." But the existence of the forge, and the further fact that pig iron has been found in the ruins of the works show that the ore was used for something else than castings. The furnace was in operation before and partly through the Revolu- tion. It was destroyed by the British during that period. • On the 10th of November, 1750, Governor Belcher certi- fied that there were in New Jersey " one mill or engine for slitting and rolling of iron, situate in the township of Beth- lehem, in the county of Hunterton, on the south branch of the river Raritan, the property of Messrs. William Allen and. Joseph Turner, of Philadelphia, which is not now in use; one plating-forge, which works with a tilt-hammer, situate on a small brook at the west end of Trenton, the property of Benjamin Yard, of Hunterton, which is now used , one furnace for the making of steel, situate in Trenton, the property of Benjamin Yard, which is not now used." Steel was, however, made at Trenton during the Revolution. A rolling and slitting mill was burnt at Old Boonton, in Morris county, before the Revolution, and a similar enter- prise was established at Dover, in the same county, in 1792, by Israel Canfield and Jacob Losey. In 1800 there were in this county three rolling and slitting mills, two furnaces, " and abqut forty forges with two to four fires each." Mr. Halsey furnishes us with the following interesting episode in the history of Old Boonton slitting mill : " A slitting mill was erected at Old Boonton, on the Rockaway river, about a mile below the present town of Boonton, in defiance of the law, by Samuel Ogden, of Newark, with the aid of his father. The entrance was from the hillside, and in the upper room first entered there were stones for grind- ing grain, the slitting mill being below and out of sight. It is said that Governor William Franklin visited the place suddenly, having heard a rumor of its existence, but was so hospitably entertained by Mr. Ogden, and the iron works were so efiectually concealed, that the Governor came away saying that he was glad to find that it was a groundless report, as he had always supposed." In the southern part of New Jersey several furnaces were built at an early day to smelt the bog ores of that section. Of these the ftirnace at Mount Holly, already mentioned, was probably the oldest. Batsto furnace, also in Burlington county, was built about 1766 by Charles Reed, and cast shot and shells for the Con- tinental army. Majiy bloomaries were also built in this section in the last century to work bog ores. The " Jersey pines " fiirnished the fuel for both the furnaces and bloom- aries. Batsto furnace was situated on Little Egg Harbor river, and ran until after the middle of the present cen- tury. Sheet iron was made at a forge at Mount Holly in 1775, by Thomas Mayburry, some of which was used to make camp-kettles for the Continental army. A nail factory was in operation at Burlington in 1797. In 1814 or 1815 Benjamin and David Reeves, brothers, estab- lished the Cumberland nail and iron works at Bridgeton, in Cumberland county, and for many years successfully manu- factured nails, with which they largely supplied the eastern markets. These works are still in operation. In 1784 New Jersey had eight furnaces and seventy-nine forges and bloomaries, but principally bloomaries. In 1810 there were in New Jersey, according to a memorial to Con- gress adopted in that year, 150 forges, " which at a moderate calculation, would produce twenty tons of bar iron each an- nually, amounting to 3,000 tons." At the same time there were in the state seven blast furnaces in operation and six that were out of blast ; also four rolling and slitting mills, " which rolled and slit on an average 20() tons, one-half of which was manufactured into nails." Of the forges men- tioned, about 120 were in Morris, Sussex, and Bergen coun- ties. Of the numerous charcoal furnaces which once dotted New Jersey not one now remains which uses charcoal, the introduction of anthracite coal in the smelting of iron ores, which took place about 1840, rendering the further produc- tion of charcoal pig iron in New Jersey undesirable. The last charcoal furnace erected in the state was built at Split Rock, in Morris Co., by the late' Andrew B.Cobb, just prior to the civil war, but it was soon abandoned. Only two or three of the old bloomaries of New Jersey now remain, although there are in the state a few bloomaries and forges of modern origin, as well as a number oflarge rolling mills, steel works, wire works, pipo works, and anthracite furnaces. Peter Cooper, now living in New York at the age of 92 years, em- barked in the iron business at Trenton, in New Jersey, in 1845, where, as is stated by the American Ci/dopoedia, " he erected the largest rolling mill at that time in the United States for the manufacture of railroad iron, and at which subsequently he was the first to roll wrought-iron beams for fire-proof buildings." He had previously, however, been prominently engaged in the manufacture of iron at Balti- more and New York. In connection with members of his family he also embarked in many other important enter- prises in New Jersey. His name has been the most prom- inent and the most honored in the iron history of the state during the present century. In 1870 New Jersey was fourth in rank among the iron-producing states of the Union, but in 1880 it had fallen to fifth place. Pennsylvania. — The settlers on the Delaware, under the successive administrations of the Swedes and Dutch and the Duke of York, down to 1682, appear to have made no effort to manufacture iron in any form. In the Journal of a Voyage to New York, in 1679 and 1680, by Jasper Dankers and Peter Sluyter, who then visited the Swedish and other settlements on the Delaware, it is expressly declared that iron ore had not been seen by them on Tinicum Island or elsewhere in the neighborhood. Jasper Dankers says : " As to there being a mine of iron ore upon it, I have not seen any upon that island, or elsewhere ; and if it were so, it is of no great importance, for such mines are so common in this country that little account is made of them." Under the more energetic rule of William Penn, the manufacture of iron in Pennsylvania had its beginning. In a letter written by Penn to Lord Keeper North, in July, 1683, he mentions the existence of "mineral of copper and iron in divers places " in Pennsylvania. In his Further account of the Province of Pennsylvania, written in 1685, speaking of " things that we have in prospect for staples of trade," he says: " I might add iron, (perhaps copper, too,) for there is much mine, and it will be granted us that we want no wood." In a letter to James Logan, the secretary of the province, dated London, April 21, 1702, he says, under the heading of "Iron Works :" "Call on those people for an answer to the heads I gave them from Ambrose Crawley. Divers would engage here in it as soon as they receive an account, which, in a time of war, would serve the country. Things as to America will come under another regulation after a while." To this letter Logan replied from Philadelphia, under date of October 1, 1702, as follows : " I have spoke to the chief of those concerned in the iron mines, but they seem careless, having never had a meeting since thy departure ; their an- swer is that they have not yet found any considerable vein." Samuel Smiles, in his Industrial Biography, says : " William Penn, the courtier Quaker, had iron ftirnaces at Hawkhurst and other places in Sussex." It was, therefore, but natural 42 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. that he should encourage the manufacture of iron in his province, and it was certainly through no indifference or neglect of his that it was not established at an early day In 1692 we find the mention of iron having been made in Pennsylvania. It is contained in a metrical composition entitled A Short Description of Pennsylvania, by Richard Frame : printed and sold by William Bradford, in Philadel phia, in 1602. He says that at " a certain place about some forty pound " of iron had then been made. The entire re- ference is as follows : A certain place here is, where some begun To try some Mettle, and have made it nm, Wherein was Iron absolutely found, At once was known about some Forty Pound. It was possibly made in a bloomary fire — ^probably in a blacksmith's fire. In 1698 Gabriel Thomas published at London An Historical and Geographical Account of the Province and Country of Pennsylvania and of West New Jersey in America, in which mention is made of the mineral productions of these colonies. Alluding to Pennsylvania, he says : " There is likewise ironstone or ore, lately found, which far exceeds that in England, being richer and less drossy. Some preparations have been made to carry on an iron work." But neither these preparations nor the enterprise alluded to by Richard Frame led to satisfactory results. Mrs. James, in her Memorial of Thomas Potts, Junior, gives an account of the first successful attempt that was made to establish iron works in Pennsylvania. The event, which oc- curred in 1716, is briefly described in one of Jonathan Dickinson's letters, written in 1717, and quoted by Mrs. James : " This last summer one Thomas Rutter, a smith, who lives not far from Germantown, hath removed further up in the country, and of his own strength hath set upon making iron. Such it proves to be, as is highly set by by all the smiths here, who say that the best of Sweed's iron doth not exceed it ; and we have accounts of others that are going on with iron works." Rutter's enterprise was a bloomary forge, located on Manatawny creek, in Berks county, about three miles above Pottstown. The name of this first forge is uncertain. Mrs. James says that the name was Pool Forge. There was certainly a Pool forge on the Manatawny as early as 1728, in which year it is mentioned in Thomas Rutter's will. The name of Rutter's pioneer enterprise may, however, have been Manatawny. In the Philadelphia Weekly Mercury for November 1, 1720, Thomas Fare, a Welshman, is said to have run away from " the forge at Manatawny." Bishop says: " A forge is mentioned in March, 1719-'20, at Manatawny, then in Philadelphia, but now in Berks or Montgomery county. It was attacked by the In- dians in 1728, but they were repulsed with great loss by the workmen." Mrs. James says that Rutter was an English Quaker, who was a resident of Philadelphia in 1685, and who removed in 1714 from Germantown " forty miles up the Schuylkill, in order to work the iron mines of the Mana- tawny region." She gives a verbatim copy of the original patent of William Penn to Thomas Rutter for 300 acres of land " on ManahataWny creek,'' dated February 12, 1714-'15. The following obituary notice in the Pennsylvania Gazette, published at Philadelphia, dated March 5 to March 13, 1729-'30, ought to be conclusive proof of the priority of Thomas Rutter's enterprise ; " Philadelphia, March 13. On Sunday night last died here Thomas Rutter, Senior, of a short illness. He was the first that erected an iron work in Pennsylvania." In his will he is styled a blacksmith. Many of his descendants have been prominent Pennsylvania iron- masters. Mrs. James says that Dr. Benjamin Rush, a signer of the Declaration of Independence, was a great-grandson of Thomas Rutter. The next iron enterprise in Pennsylvania was Coventry forge, on French creek, in the northern part of Chester county, which was built by Samuel Nutt, also an English Quaker. Egle's History of Pennsylvania says that Nutt arrived in the province in 1714, and that " he took up land, on French creek, in 1717, and about that time built a forge there. A letter written by him in 1720 mentions an intention of erecting another forge that fall." We have seen this letter, which is dated July 2, 1720. It is written in Friends' language. Nutt proposed to build the new forge on French creek. Mrs. James states that Nutt purchased 800 acres of land at Coventry in October, 1718. This was in addition to his earlier purchases. He probably made iron at Coventry forge in that year. Bishop refers to a letter written by Dickinson, in July, 1718, stating that " the ex- pectations from the iron works forty miles up Schuylkill are very great." In April, 1719, Dickinson again wrote : " Our iron promises well. What hath been sent over to England hath been greatly approved. Our smiths work up all they make, and it is as good as the best Swedish iron." Dickinson probably referred to Natt's forge as well as to Rutter's. Coventry forge was in operation in 1756, and in 1770 it is noted on William Scull's map of Pennsylvania. It was in operation after the Revolution, and in 1856 a forge of the same name, which is now abandoned, was in opera- tion at or near the original site. The next iron enterprise in Pennsylvania was undoubt- edly Colebrookale furnace, which was erected about 1720 by a company of which Thomas Rutter was the principal member. It was located on Ironstone creek, in Colebrook- dale township, in Berks county, about eight miles north of Pottstown, three-fourths of a mile west of Boyertown, and about two hundred yards from the Colebrookdale rail- road. Plenty of cinder marks the exact site to-day. A large grist and saw niill stands about one hundred feet distant. This furnace supplied Pool forge with pig iron, and in course of time other forges. Both Pool and Cov- entry forges were at first probably operated as bloomaries. The company which built Colebrookdale furnace appears to have been composed of Thomas Rutter, James Lewis, Anthony Morris, and others — Rutter owning two-thirds interest, as is shown by his will, dated November 27, 1728, on file in the oifice of the register of wills in Philadelphia. In 1731, according to Mrs. James, Colebrookdale furnace and Pool forge were both owned by companies. In the list of owners of both establishments appears the name of Thomas Potts, the founder of a family of the same name which has ever since been prominent in the manufacture of iron in Pennsylvania, and in other states. He died at Cole- brookdale in January, 1762. He was in his day the most successful iron manufacturer in Pennsylvania. In his will, dated 1747, he leaves his " two-thirds of Colebrookdale fur- nace and iron mines " to his son Thomas, and his "one-third of Pine forge" to his son John. He was of English or Welsh extraction. In 1733 the furnace was torn down and rebuilt by the company, Thomas Potts being the manager. A second Pool forge appears to have been built prior to this time, higher up the stream than the first A'enture. Mrs. James writes us as follows : " I have a large calf-bound folio ledger of nearly 200 folios of Colebrookdale furnace, marked ' B.' The first date is August. 1728, hut there are several pages referring to the first ledger, one of them in 1726. Mention is constantly made of sending ' piggs ' to Pool forge, proving that Pool was then in full blast. 'A' would seem to be a large volume from reference to the folios,'' and therefore to have covered the operations of a number of years. Mrs. James thinks that it is lost. She adds that on the title-page of ledger " B " the name of Thomas Potts is written in connection with the year 1728, probably as the manager or lessee of the furnace. He was a resident of Manatawny in 1725. On Nicholas Scull's map of Pennsylvania, published in 1759, Colebrookdale furnace is noted, and in a list of iron works existing in Pennsyl- vania in 1793, and published by Mrs. James, it is again mentioned, although it was not then active. We have not found it mentioned at any later period. A stove-plate cast at this furnace in 1763 was exhibited at the Philadelphia Exhibition of 1876. In 1731 pig iron sold at Colebrookdale furnace " in large quantities " at £5 10s. per ton, Pennsyl- vania currency, a pound being equal to $2 66f. It would seem that friendly Indians were employed at Colebrookdale ftirnace, as "Indian John" and " Margalitha " are found in the list of workmen about 1728. The fiiriiace was located in the heart of one of the richest deposits of magnetic iron ore in the United States. After being neglected for a long time this deposit is now the center of great mining activity. Durham furnace, on the Delaware river, in the extreme northern part of Bucks county, was built in 1727 by a com- pany of fourteen persons, of which Anthony Morris, William Allen, Joseph Turner, and James Logan (Penn's secretary) were members. Its first blast took place iji the spring of THE MINES, MESTEES AND MINING INTERESTS OF THE UNITED STATES. 43 1728, and in November of that year James Logan shipped three tons of Durham pig iron to England. At the Phila- delphia exhibition of 1876 the keystone of the Durham fur- nace, bearing date " 1727," was an object of interest. It is probable that about 1750 there were two Durham furnaces. On Nicholas Scull's map of Pennsylvania (1759) an old and a new furnace and a forge at Durham are distinctly marked. In 1770 there were two furnaces and two forges at Durham. There were at one time three forges on Durham Creek. As late as 1780 negro slaves were employed at Durham, twelve of whom in that year escaped to the British lines. Much of the iron made at Durham was taken to Philadelphia in boats fashioned somewhat like an Indian canoe, and first built at Durham ; hence the term afterwards in common use, "Durham boats." Eedmond Conyngham, quoted by Day, says that iron works are supposed to have been estab- lished in Lancaster county in 1726 by a person named Kurtz, who is said by another authority to have been an Amish Mennonite. In Egle's History of Pennsylvania it is stated that Kurtz's works were on Octorara creek, and that it is possible they were in Maryland, and not in Lancaster county. Conyngham also says that the enterprising family of Grubbs " commenced operations in 1728," also in Lan- caster county. Both history and tradition are silent con- cerning the nature of these alleged " operations " at that time. In 1728 James Logan wrote that "there are four furnaces in blast in the colony." Colebrookdale and Dur- ham were certainly two of these, but the names of the others are in doubt. The iron industry of Pennsylvania may be fairly said to have been established on a firm foundation at this period. In 1728-29 the colony exported 274 tons of pig iron to the mother country. The production of a Penn- sylvania furnace at this time was about two tons of iron in twenty-four hours. The manufacture of nails in Pennsylvania commenced at a very early day. In 1731 George Megee, nailer, at the corner of Front and Arch streets, Philadelphia, advertised for sale, wholesale and retail, all sorts of nailes of his own manufacture. The erection of other forges and furnaces proceeded with great rapidity in the Schuylkill valley and in other eastern portions of Pennsylvania after Butter and other pioneers had shown the way. McCall's forge, after- wards called Glasgow forge, on Manatawny creek, in Berks county, a short distance above Pottstown and below Pool forge, was built by George McCall about 1725. Spring forge, on the Manatawny, in Berks county, west of Cole- brookdale furnace and about five miles north of Douglass- ville, was built in 1729, probably by Anthony Morris. These forges, as well as Pool forge, were supplied with pig iron from Colebrookdale furnace. Green Lane forge, on Perkiomen creek, in Montgomery county, twenty miles north of Norristown, was built in 1733 by Thomas Mayburry. The workmen employed here were at one time chiefly negro slaves. 'This forge was supplied with pig iron from Durham furnace before 1747. Mount Pleasant mrnace, on Perkio- men creek, in Berks county, thirteen miles above Pottstown, was built by Thomas Potts, Jr., in 1738. A forge of the same name was added before 1743. Pine forge, on the Manatawny, in Berks county, about five miles above Potts- town, was built about 1740 by Thomas Potts, Jr. Spring, Glasgow, Mount Pleasant, and Green Lane forges were in operation down to the middle of the present century. Pine forge was converted into Pine rolling mill in 1845, and upon the site of Glasgow forge there was erected in 1874 and 1876 a rolling mill which is known as the Glasgow iron works. ' It is supposed that Nutt built a furnace called Reading soon after he built Coventry forge, but this is uncertain. Mrs. James says that two furnaces bearing that name were erected, about a mile from each other, the second after the first was abandoned. It is certain that a furnace of this name was built by Samuel Nutt and William Branson, on French creek, about 1736. We think that this was the second Reading flirnace, and that both were built by Nutt and Branson. In the inventory of the estate of Samuel Nutt, which Gilbert Cope, of West Chester, has kindly placed in our hands, mention is made of "a ring round the old shaft at the old furnace," and of " one tonn of sow mettle at new furnace." Acrelius, in speaking of the iron ore on French creek, says : " Its discoverer is Mr. Nutt, who afterwards took Mr. Braaz into-partaership." The reference is to William Branson. This event occurred as early as March 29, 1728, as their names then appear in the Phila- delphia Weekly Mercury as partners. Acrelius further says: " They both went to England, brought workmen back with them, and continued together." Mrs. James says: "The 15th day of March, 1736, Hamuel Nutt and William Branson entered into an agreement with John Potts to carry on their furnace called Redding, recently built near Coventry, and of which they are styled 'joint owners.'" At a meeting of the Provincial Council on January 25, 1737, " a petition of sundry inhabitants of the county of Lancaster was pre- sented to the board and read, setting forth the want of a road from the town of Lancaster to Coventry iron works, on French creek, in Chester county, and praying that proper persons of each of the counties may be appointed for laying out the same from Lancaster town to the said iron works, one branch of which road to goe to the new fiirnace, called Redding's furnace, now erecting on the said creek." On October 7th of the same year commissioners were appointed to lay out the road. Samuel Nutt died late in 1737. In his will, dated Sep- tember 25, 1737, he gave one-half of his " right " to Red- ding furnace and Coventry forge to his wife, and the other half to Samuel Nutt, Jr., and his wife. He also made provision for the erection of a new furnace by his wife. This mrnace was commenced in the same year, and was built on the south branch of French creek. It was probably finished in 1738. In 1740 its management fell into the hands of Robert Grace, (a friend of Benjamin Franklin,) who then married the widow of Samuel Nutt, Jr. This lady was the grand-daughter of Thomas Rutter. The new fiirnace was called Warwick. The celebrated Franklin stove was in- vented by Benjamin Franklin in 1742, and in his auto- biography he says : " I made a present of the model to Mr. Robert Grace, one of my early friends, who, having an iron furnace, found the casting of the plates for these stoves a profitable thing, as they were growing in demand." Mrs. James has seen one of these stoves with the words "War- wick Furnace " cast on the front in letters two inches long. Bishop says that Warwick flirnace "was blown by long wooden bellows propelled by water wheels, and when in blast made 25 or 30 tons of iron per week." It continued in operation during a part of almost every year, frpm its erec- tion in 1738 down to 1867, when its last blast came to an end and the furnace was abandoned. During the Revolu- tion it was very active in casting cannon for the Continental army, some of which were buried upon the approach of the British in 1777. After Samuel Nutt's death Reading fur- nace became the property of his partner, William Branson. It is noted on Nicholas Scull's map of 1759. Coventry forge finally fell to Samuel Nutt's heirs. The German traveler, Schoepf, writing in 1783 of some Pennsylvania fur- naces and forges, makes the following mention of Warwick and Reading furnaces : " Warwick furnace, 19 miles from Reading, near Pottsgrove, makes the most iron, often 40 tons a week ; the iron ore lies ten feet under the surface. Reading furnace, not far from the former, is at present fallen into decay. Here the smelting would formerly of- ten continue from 12 to 18 months at a stretch. At an uncertain period before 1750 William Branson and others established on French creek the first steel works in Pennsyl- vania. They were called Vincent steel works. They are thus described by Acrelius: " At French creek, or Branz's works, there is a steel furnace, built with a draught hole, and called an ' air oven.' In this iron bars are set at the distance of an inch apart. Between them are scattered horn, coal-dust, ashes, etc. The iron bars are thus covered with blisters, and this is called ' blister steel.' It serves as the best steel to put upon edge-tools. These steel works are now said to be out of operation." Vincent forge, with four fires and two hammers, was connected with Vincent steel furnace, but the date of its erection is also uncertain. It is noted on William Scull's map of 1770. The furnace and forge were located about six miles from the mouth of French creek, and about five miles distant from Coventry forge, which was farther up the stream. Before February 15, 1797. a rolling and slitting mill had been added to the forge. We do not hear of the steel furnace after 1780, nor of the forge after 1800. In 1742 William Branson, then owner of Read- ing furnace, bought from David Jenkins a tract of 400 acres 44 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. of land on Conestoga creek, near Churchtown, in Caernarvon township, Lancaster county, on ■which in 1747 he erected a forge, wiiich he called Windsor. This forge was speedily- followed by another of the same name. In a short time afterwards, as we are informed by Mr. James McCaa, " Branson sold out to the English company, who were Lyn- ford Lardner, Samuel Flower, and Eichard Hockley, Ejqs., who held it lor thirty years, when, in 1773, David Jenkins, son of the original proprietor, bought the half in- terest of the company for the sum of £2,500, and in two years afterwards bought the other half for the sum of £2,400, including the negroes and stock used on the premises." Kobert Jenkins inherited the Windsor property from his father David, and managed Windsor forges with great suc- cess for fifty years, dying in 1848. They have since been abandoned. Acrelius, narrating events which occurred between 1750 and 1756, mentions the enterprises of Nutt and Branson as follows : " Each has his own furnace — Branz at Beading, Nutt at Warwick, Each also has his own forges — Branz in Windsor. Nutt supplies four forges besides his own in Chester county." Nutt was not living at the time this was written, but Acrelius's confounding of ownership is easily understood. Nor is it probable that Branson operated Windsor forges in 1750. In that year he is reported as hav- ing then owned a furnace for making steel in Philadelphia, and soon after 1743 it is known that he sold Windsor forges to the " English company," which was composed of his sons- in-law. William Branson was himself an Englishman who emigrated to Pennsylvania about 1708 and became a Phila- delphia merchant. He died in 1760. There was a forge on Crum creek, about two miles above the town of Chester, in Delaware county, which was built by John Crosby and Peter Dicks about 1742. Peter Kalm, the Swede, in his Travels into North America, written in 1748 and 1749, thus describes it: "About two English miles behind Chester I passed by an iron forge, which was to the right hand by the road side. It belonged to two brothers, as I was told. The ore, however is not dug here, but thirty or forty miles from hence, where it is first melted in the oven, and then carried to this place. The bellows were made of leather, and both they and the hammers, and even the hearth, [were] but small in proportion to ours. All the machines were worked by water. The iron was wrought into bars." The " oven " here referred to was a blast furnace, which was probably located in the Schuylkill valley, the pigs for the forge being boated from it down the Schuylkill and Delaware and up Crum creek. Acrelius says that the forge was owned at the time of his visit by Peter Dicks, had two stacks, was worked sluggishly, and had " ruined Crosby's family." As early as 1742 John Taylor built a forge on Chester creek, in Thorn- bury township, Delaware county, where Glen Blills now stand, which he called Sarum iron works. In 1746 he added a rolling and slitting mill. These works are said to have been carried on with energy by Mr. Taylor until his death in 1756. Acrelius, writing about the time of Mr. Taylor's death, says : " Sarum belongs to Taylor's heirs ; has three stacks, and is in full blast." Peter Kalm states that at Chichester (Marcus Hook) " they build here every year a number of small ships for sale, and from an iron work which lies higher up in the country they carry iron bars to this place and ship them." This "iron work" was certainly Sarum. Taylor was the descendant of an English settler in the province. His rolling and slitting mill was the first in Pennsylvania. In 1750 there was a " plating forge with a tilt-hammer" in Byberry township, in the northeastern part of Philadelphia county, the only one in the province, owned by John Hall, but not in use in that year. In the same year there were two steel furnaces in Philadelphia, one of which, Stephen Paschall's, was built in 1747, and stood on a lot on the northwest corner of Eighth and Walnut streets; the other was owned by William Branson, and was located ne?.r where Thomas Penn "first lived at the upper end of Chestnut street." These furnaces were for the production of blister steel. There appear to have been no other steel fur- naces in the province in 1750. Whitehead Humphreys was in 1770 the proprietor of a steel furnace on Seventh street, between Market and Chestnut, in Philadelphia, where he also made edge tools. In February, 1775, Uriah Wool- man and B. Shoemaker, "in Market street, Philadelphia," advertised in Dunlap's Pennsylvania Packet " Pennsylvania steel manufactured by W. Humphreys, of an excellent quali- ty, and warranted equal to English, to be sold in blister, faggot, or flat bar, suitable for carriage springs." Eeturn- ing to the Schuylkill valley, we find in 1751 a forge called Mount Joy at the mouth of East Valley creek, on the Ches- ter county side of the creek, the one-third of which was ad- vertised for sale on the 4th of April of that year by Daniel Walker, and the remaining two-thirds on the 26th of Septem- ber of the same year by Stephen Evans and Joseph Wil- liams. In Daniel Walker's advertisement it was stated that the forge was " not so far distant from the furnaces." Pen- nypacker, in his Annals of Phcenixville and its Vicinity, says that "the ancestor of the Walker family" had come from England with William Penn, and "at a very early date had erected the small forge on the Valley creek." It is clear, however, that in 1751 Daniel Walker owned only the one-third of the forge, Evans and Williams owning the remainder. In 1757, as we learn from Mrs. James, the forge was sold to John Potts by the executors of Stephen Evans. In 1773 it was owned by Joseph Potts, at which time it continued to be legally designated as Mount Joy forge, although for some time previously it had been popu- larly known as Valley forge. In that year Joseph Potts sold the half of the forge to" Colonel William Dewees. The pig iron used at Valley forge was hauled from Warwick furnace. In September, 1777, the forge was burned by _ the British, and in December of the same year the American army under Washington was intrenched on the Montgomery county side of Valley creek, opposite Valley forge. General Washington's headquarters were established at the sub- stantial stone house of Isaac Potts, also on the Montgomery county side of Valley creek. The house is still standing. Isaac Potts was not, however, at this time an owner of Val- ley forge. After the close of the Revolutionary war Isaac and David Potts, brothers, erected another forge on the Montgomery county side of Valley creek and about three- eighths of a mile below the old Mount Joy forge. A new dam was built, which raised the water partly over the site of the old forge. About the same time, and as early as 1786, a slitting mill was built on the Chester county side of the stream by the same persons. The new forge was called Val- ley forge. It was in ruins in 1816. About 1824 all the iron works at the town of Valley Forge were discontinued. Mrs. James says that " nothing now remains but an immortal name." Charming forge, on Tulpehocken creek, two miles from Womelsdorf, in Berks county, was built in 1749, probably by Pennsylvania Germans, as we find that in 1754 it was styled Tulpehocken Eisen Hammer. This forge is still in operation. Another early forge in the Schuylkill valley was Amity forge, on the Manatawny or one of its branches. Helmstead, Union, and Pottsgrove were the names of other forges existing in 1750. Mary Ann ftirnace, in Long Swamp township, Berks county, was in existence as early as 1762, when it was owned by George Ross and George Ege. This furnace was in blast until 1869. Oley furnace, on Manataw- ny creek, about eleven miles northeast of Reading, was built in 1779, by Daniel Udree, a Pennsylvania German, and is still in operation. In 1780 a forge of the same name was built on the same stream by Mr. Udree. It has been abandoned since 1856. Green Tree forge, near Reading, was built in 1770. On William Scull's map of 1770 Mose- lem forge, on Maiden creek, Berks county, and Gulf forge, on Gulf creek, in Upper Merion township, Jlontgomery county, are noted. William Bird was an enterprising Eng- lishman who established several iron enterprises in Berks county before the Revolution. A person of this name was a witness of Thomas Rutter's will, on November 27, 1728, when he appears to have been a resident of Amity township, Berks county. In 1740 or 1741 William Bird built a forge on Hay creek, near its entrance into the Schuylkill, where the town of Birdsboro now stands. In 1759 he built Hopewell furnace on French creek, in Union township, Berks county, which is still in operation and still using charcoal. In tlie same year he built Nine Pine forge, near Hopewell furnace, in the same township. As early as 1760 he built Roxbo- rough furnace in Heidelburg township, Berks county, the name of which was subsequently changed to Berkshire. Dying in 1762, his estate was divided between his six THE MINES, MINERS AND MINING INTEEE8TS OF THE UNITED STATES. 45 children and his widow. Berkshire furnace fell to a son, Mark Bird, who in 1764 sold it to John Patton and his wife Bridget, who had been the wife of William Bird. In 1789 Bridget Patton, again a widow, sold the furnace to George Ege. Mark Bird built a rolling and slitting mill and a nail factory at Birdsboro about the time of the Kevolution. He also built Spring forge ia Oley township, and Gibraltar forges in Robeson township. At Trenton, New Jersey, he manufactured wire. He failed in business about 1788. Eli- zabeth furnace, near Brickersville, in Lancaster county, on Middle creek, a branch of Conestoga creek, was built about 1750 by John Huber, a Pennsylvania German. It was a small furnace, and did not prove to be profitable. In 1757 Huber sold it to Henry William Stiegel and his partners, who built a new and larger furnace, which was operated until 1775, when through Stiegel's embarrassments, it passed into the hands of Daniel Benezet, who leased it to Robert Coleman, who subsequently bought it and eventually be- came the most prominent ironmaster in Pennsylvania at the close of the last and far into the present century. Bishop states that "some of the first stoves cast in this country were made by Baron Stiegel, relics of Which still remain in the old families of Lancaster and Lebanon coun- ties." Rev. Joseph Henry Dubbs, of Lancaster, says that Stiegel's stoves bore the inscription : Baron Stiegel ist der mann Der die Of en machen kann. That is, "Baron Stiegel is the man who knows how to make stoves." On the furnace erected by Huber the following legend was inscribed : John Huber, der erste Deutche man Der das Eisenwerlc vollfuren kann. Freely translated this inscription reads: "John Huber is the first German who knows how to make iron." Henry Wil- liam Stiegel was a man of great enterprise and business ca- pacity, but of a too sanguine temperament; hence his failure where others succeeded. On the fifth of February, 1763, he was associated with Charles and Alexander Stedman as a lessee of Charming forge. In 1772 the forge was leased by him and Paul Zantzinger to George Zantzinger and George Ege. Between 1760 and 1770 he established a glass factory at Manheim, in Lancaster county, called the American flint glass factory, which was in operation as late as 1774. He was a native of Germany, arriving in this country on Au- gust 31, 1750, (old style,) in the ship iVajicy from Rotterdam. He is buried in the Lutheran graveyard in Heidelberg township, Berks county, a few miles from Womelsdorf. In his last days he taught school in this township. ^ After Elizabeth furnace came into the possession of Rob- ert Coleman he cast shot and shells and cannon for the Con- tinental army, and some of the transactions which occurred between him and the Government in settlement of his ac- counts for these supplies are very interesting. On Novem- ber 16, 1782, appears the following entry : " By cash, being the value of ^ German prisoners of war, at £30 each, £1,260 ; " and on June 14, 1783, the following : " By cash, being the value of 28 German prisoners of war, at £30 each, £840." In a foot note to these credits Robert Coleman cer- tifies '' on honour " that the above 70 prisoners were all that were ever secured by him, one of whom being returned is to be deducted when he produces the proper voucher. Rupp, in his history of Lancaster county, mentions that in 1843 he visited one of the Hessian mercenaries who was disposed of in this manner at the close of the war for the sum of £80, for the term of three years, to Captain Jacob Zimmerman of that county. Elizabeth flirnace continued in operation until 1856, when it was abandoned by its owner, Hon. G. Dawson Coleman, the grandson of Robert Coleman, for want of wood. Among the persons who were employed at Windsor forges under the "English company" was James Old, a forgeman. He was shrewd and energetic. Abont 1765 he built Pool forge on Conestoga creek, about a mile below Windsor forges. Early records mention his ownership of Quitapahilla forge, near' Lebanon, and of Speedwell forge, on Hammer creek, in Lancaster county. Tradition also associates his name with the ownership of other forges in Chester, Lancaster, and Berks counties. In 1774 he was a lessee of Reading furnace, on French creek. In 1795 he conveyed Pool forge and 700 acres of land attached to his son, Davies Old. James Old was born in AVales in 1730. He emigrated to Pennsylvania previous to September 7, 1754, when his name for the first time appears in the register of Bangor church, at Churchtown, Lancaster county, as the contributor of £5 to- ward the erection of the church building. Soon after his settlement at Windsor he married Margaretta Davies, a daughter of Gabriel Davies, of Lancaster county. Gabriel Davies is supposed to have been the owner of the site on which Pool forge was built. James Old died on May 1, 1809, in his 79th year, and is buried in the graveyard of Bangor church. He was one of the most enterprising and successful of early Pennsylvania ironmasters. He had a brother William, also a forgeman, who had been employed at Windsor forges, and who afterwards embarked in the manufacture of bar iron on his own account. William Old, a son of James Old, married Elizabeth Stiegel, the daughter of Baron Stiegel. She is buried in the same graveyard which holds the remains of her father. Mrs. Henry Morris, of Philadelphia, is her grand-daughter. Robert Coleman was in his younger days in the service of James Old, and while with him at Reading furnace in 1773 he married his daugh- ter Ann. Soon after his marriage he rented Salford forgCj above Norristown, in Montgomery county, where he re- mained three years. While at this forge he manufactured chain bars, which were designed to span the Delaware river for the defense of Philadelphia, against the approach of the British fleet. From Salford Forge he went to Elizabeth fur- nace. He was born near Castle Fin, in Donegal county, and not far from the city of Londonderry, in Ireland, on the 4th of November, 1748. In 1764, when 16 years old, he left Ireland for America. He died at Lancaster in 1825, at which place he is buried. Cyrus Jacobs married Margaretta, another daughter of James Old, about 1782. At that time he was living at Churchtown, in the employment of James Old as a clerk at Pool forge. He was at Gibraltar forge, in Berks county, in 1787, and at Hopewell forge, in Lancaster county, from 1789 to 1792. Tradition says that he was a lessee of both these forges from James Old. In 1793 he built Spring Grove forge, on Conestoga creek, about three miles west of Pool forge, and in 1799 he purchased Pool forge from Davies Old. Both these forges were active until 1856, after which they were abandoned. The Jacobs family came to Pennsylvania from Wales about 1693, and settled on Perkiomen creek. Cyrus Jacobs was born in 1761, and died in 1830 at Whitehall, near Churchtown. Cornwall furnace, located within the limits of the new celebrated Cornwall ore hills, on Furnace creek, in Lebanon county, a few miles south of Lebanon, was built in 1742 by Peter Grubb, whose descendants to this day have been prominent Pennsylvania ironmasters. He was the son of John Grubb, a native of Cornwall, in England, who emigrated to this country in the preceding century, landing at Grubb's Landing, on the Delaware, near Wilmington, at which latter place he is buried. There is record evidence that Peter Grubb w-as already an iron- master before he built Cornwall furnace, and a tradition in his family says that in 1735 he built a furnace or bloomary, most likely the latter, about five-eighths of a mile from the site of Cornwall flirnace. He died intestate about 1754, and his estate, including the Cornwall ore hills, de- scended to his two sons, Curtis and Peter Grubb — both after- wards colonels in the Revolution. In 1756, just after the death of Peter Grubb, Acrelius wrote of Cornwall furnace as follows: Cornwall, or Grubb's iron works, in Lancaster county. The mine is rich and abundant, forty feet deep, commencing two feet under the earth's surface. The ore is somewhat mixed with sulphur and copper. Peter Grubb was its discoverer. Here there is a furnace which makes twenty-four tons of iron a week, and keeps six forges regu- larly at work — ^two of his own, two belonging to Germans in the neighborhood, and two in Maryland. The pig iron is carried to the Susquehanna river, thence to Maryland, and finally to England. The bar iron is sold mostly in the country and in the interior towns ; the remainder in Phila- delphia. It belongs to the heirs of the Grubb estate, but is now rented to Gurrit & Co." The firm was doubtless Garret & Co. During the Revolution Cornwall furnace cast cannon and shot and shells for the Continental army. It ia 46 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. still in operation, and is the oldest active charcoal furnace in the United States. It has always used charcoal. In 1785 Robert Coleman purchased a one-sixth interest in Cornwall furnace and the ore hills. After that year, through succes- sive purchases from the Grubbs, he obtained four additional sixths of the Cornwall property. His total purchases of this valuable property remain in the hands of his descendants to-day. Martic forge, on Pequea creek, near the present village of Colemanville, Lancaster county, was built in 1755, and is still in operation. Early in this century cemented or blistered steel was made here. Mr. R. S. Potts, one of the present owners of Martic forge, writes us as follows : " There used to be a small rolling mill near the forge that stopped running some fifty years ago. There was also a charcoal furnace called Martic some six miles east of the forge, but I have been unable to ascertain its history beyond the fact that it was owned and operated by the Martic Forge Com- pany ; when that was, however, or how long it was in blast, I cannot learn. The old cinder bank is still visible. Dur- ing the Revolution round iron was drawn under the ham- mer at the forge and bored out for musket barrels "at a boring mill, in a very retired spot, on a small stream far off from any public road, doubtless with a view to prevent dis- covery by the enemy. The site is still visible. In 1769 Martic furnace and forgewere advertised for sale by the sheriff, together with 3,400 acres of land and other property — " all late the property of Thomas Smith, James Wallace, and James Fulton." The furnace was in existence in 1793, but it was n(.it then active. Hopewell forge, on Hammer creek, in Lancaster county, about ten miles south of Lebanon, was built by Peter Grubb soon after he built Cornwall furnace. Speedwell forge, on the same stream, near Brickersville, in Lancaster county, was built in 1750, also by Peter Grubb. The iron industry of Pennsylvania crossed the Susquehanna at a very early period. Acrelius says that there was a bloomary in York county in 1756, owned by Peter Dicks, who had but re- cently discovered " the mine. " Spring forge, in the same county, was built in 1770, was still in operation in 1849, and was abandoned about 1850. About the year 1760 a forge was built at Boiling Springs, in Cumberland county, forming the nucleus of the Carlisle iron works, which after- wards included a blast furnace, a rolling and slitting mill, and a steel furnace. The furnace was built in 1762 by John Rigbey & Co Michael Ege was the proprietor after 1768. On a tax list at Carlisle Robert Thornburg & Co. appear in 1767 as the owners of a forge to which 1,200 acres of land were attached. We cannot locate this forge. A forge is supposed to have been built at Mount Holly in 1765. Pine Grove furnace, in the same county, was built about 1770 by Thornburg & Arthur. In 1782 Michael Ege became part owner and subsequently sole owner. A forge was attached to this furnace. Both the furnace and forge are still in operation. No other iron works west of the Susquehanna are known to have been established previous to the Revolu- tion. About 1777 William Denning, an artificer of the Revolutionary army, had a forge in active operation at Mid- dlesex, in Cumberland county, at which he manufactured wrought-iron cannon. Although all the iron enterprises which were established in Pennsylvania prior to the Revolu- tion have not been mentioned in the preceding pages, those which have been mentioned indicate remarkable activity in the development of the iron resources of the province. Pennsylvania was one of the last of the thirteen colonies to be occupied by permanent Euglish settlements, and even after these settlements were made a long time elapsed before the erection of iron works was successfully undertaken. Very strangely, the business of manufacturing iron was not fairly commenced in Pennsylvania until 1716, but after this time it grew rapidly, and in the sixty years which intervened before the commencement of hostilities with the mother country probably sixty blast furnaces and forges were built- a rate of progress which was not attained by any other colony in the same period. Acrelius said in 1756 : " Pennsylvania, in re- gard to its iron works, is the most advanced of all the American colonies." Many of these enterprises were upon a scale that would have done credit to a much later period of the American iron industry. Cornwall and Warwick furnaces were each 32 feet high, 21 J feet square at the base, and 11 feet square at the top. War- wick was at first 9 feet wide at. the boshes, but was after- wards reduced to 7J feet. The forges were usually those in which pig iron was refined into bar iron " in the Walloon style," as stated by Acrelius. There were few ore bloomaries, and nearly all of these were built at an early day. Acrelius mentions only one of this class — Peter Dicks' bloomary, in York county. The smaller furnaces yielded only from 1 J to 2 tons of pig iron daily, but the larger ones yielded from 3 to 4 tons. The Reading and Warwick furnaces, when in blast, each made from 25 to 30 tons of iron per week. The furnaces were used to produce both pig iron and castings, the latter consisting of stoves, pots, kettles, andirons, and similar articles. Of the product of the forges Acrelius says that " one forge, with three hearths in good condition, and well attended to, is expected to give 2 tons a week." The same author says that for four months in summer, when the heat is most oppressive, all labor is suspended at the furnaces and forges." The scarcity of water at this season would also have much to do with this suspension, all of the works being operated by water-power. It was not until about the close of the first third of the present century that blowing engines were used to produce the blast at either fur- naces or forges in Pennsylvania, or in any other state. At first large leather bellows were used to blow both the fur- naces and the forges, but afterwards, about the time of the Revolution, wooden cylinders, or " tubs," were substituted. Reading, Warwick, and Cornwall furnaces— three of the best furnaces of the last century — retained their long leather bellows until a late day. The Cornwall bellows was 20 feet 7 inches long, 5 feet 10 inches across the breech, and 14 inches at the insertion of the nozzle. Only one tuyere was used at the furnaces. The fuel used was exclusively char- coal, and the blast was always cold. About 400 bushels of charcoal were required to produce from the ore a ton of ham- mered bar iron. — CompHsdfrom James M. Swank^B Seport on Iron and Steel, Tenth Census of the XJ. 8. THE MANUFACTURE OF CHARCOAL IRON IN EASTERN PENNSYLVANIA AFTER THE REVOLUTION. AFTER the Revolution the business of manufactur- ing iron received a fresh impulse in the eastern part of Pennsylvania, and was further extended into the interior. Chester, Lancaster, and Berks counties shared conspicuously in the development at this period of the leading manufacturing industry of the state. Many blast furnaces and forges and a few rolling and slitting mills were built in these counties before 1800, and after the beginning of the present century this activity was continued. A few of the more important enterprises in each of these counties and in other eastern counties may be mentioned. In 1790 Benjamin Longstreth erected a rolling and slitting mill at Phoenixville, where the foundry now stands, to roll bars into plates to be slit into nail rods. This was the be- ginning of the present extensive works of the Phoenix Iron Company. Federal slitting mill, on Buck run, about four miles south of Coatesville, in East Fallowfield township, Chester county, was built in 1795 by Isaac Pennock. The name of this mill was afterwards changed to Rokeby rolling mill. It was used to roll sheet iron and nail plates and to slit the latter into nail rods. It continued in operation until 1864, when it was burned down and abandoned. During the latter part of its history it rolled boiler plates. A paper mill now oc- cupies its site. About 1810 Mr. Pennock built the Brandy- wine rolling mill at Coatesville, which was afterwards oper- ated for him by Dr. Charles Lukens, who had been em- ployed at the Federal slitting mill. At this mill it is claimed that the first boiler plates in the United States were rolled by Dr. Lukens in 1816. The puddling mill of the Lukens rolling mill at Coatesville occupies to-day the site of the Brandy wine mill. Upon the death, in 1825, of Dr. Lukens, who had become the owner of the Brandywine mill, the management of the mill devolved upon his wife, by whom the business was greatly extended and profitably conducted for twenty years. As a tribute to her jnemory tte name of THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 47 the works was, after her death, changed to Lukens rolling mills. Mount Hope furnace, located on the Big Chiquisa- lunga creek, in Lancaster county, about ten miles south of Lebanon, was built in 1785 by Peter Grubb, Jr., and is still operated by members of the Grubb family. Colebrook furnace, on the Conewago, in Lebanon county, seven miles southwest of Cornwall furnace, was built by Robert Cole- man in 1791 and abandoned about 1880. Mount Vernon furnace, on the same stream, about twenty-three miles west of Lancaster, and in Lancaster county, was built in 1808 by Henry Bates Grubb. A second furnace of the same name was built near the first in 1831. Both have been abandoned. Conowingo furnace, on the creek of the same name, and about sixteen miles southeast of Lancaster, was built in 1809. About 1840 steam-power for driving the blast was success- fully introduced by its owner, James M. Hopkins, the boilers being placed at the tunnel-head. Soon after the introduc- tion of steam at Conowingo furnace it was successfully applied to Cornwall furnace by the manager, Samuel M. Reynolds. In 1786 there were seventeen furnaces, forges, and slitting mills within thirty-nine miles of Lancaster. In ■ 1838 there were 102 furnaces, forges and rolling mills within a radius of fifty-two of Lancaster. At this time Lancaster was the great iron center of eastern Pennsylvania. In 1805 there were seven forges and one slitting mill in Delaware county. Franklin rolling mill, at Chester, in Delaware county, was built in 1808. In 1828 there was in this county five rolling and slitting mills and some manufactories of finished iron products. The Cheltenham rolling mill, on Tacony creek, in Montgomery county, one mile below Shoemakertown, was built in 1790. In 1856 it was owned and operated by Rowland & Hunt ; it has since been aban- doned. Joanna furnace, on Hay Creek, in Berks county, was built as early as March, 1793. It is still in operation, and still uses charcoal. A neighboring furnace called Rebecca was situated in Chester county, and was in exist- ence in 1793. Reading furnace, two iniles east of Womels- dorf, in Berks county, was built in 1793 by George Ege, on the site now occupied by the Robesonia furnaces. It was a near neighbor of Berkshire furnace. Sally Ann furnace, in Rockland township, about five miles south of Kutztown, was built in 1791. After having been idle for many years it was refitted in 1879 and is now in operation under the name of Rockland furnace. In 1798 there were six furnaces and six forges in Berks county. In 1832 there were eleven furnaces and twenty-one forges. The first iron enterprises in the Lehigh valley are said to have been established in the last century, in Carbon county. These were Maria forge and furnace, on Pocopoco creek, near Weissport. The forge is said to have been built in 1753. It was abandoned in 1858, and the furnace in 1861. Several charcoal iron enterprises were established in this valley during the early part of the present century, includ- ing a few bloomaries. All of the forges and bloomaries in the Lehigh valley have been abandoned. Nearly all of the bloomaries were supplied with ore fi:om northern New Jer- sey. Of the charcoal fiirnaces only one is now in operation which uses charcoal — East Penn, formerly Pennsville, in Carbon county, built in 1837. In 1836 a rolling mill and wire factory were built at South Easton, in Northampton county, by Stewart & Co. This was probably the .first rolling mill in the valley. In 1805 there were two forges in York county, one of which was Spring forge, which stood on Codorus creek. Castle Fin forge, formerly called Palmyra forge, on Muddy creek, in York county, was built in 1810, by a person named Withers, and rebuilt in 1827 by Thomas Burd Coleman, who also erected a steel furnace about 1832. Both have been abandoned. In its day Castle Fin forge was a very prominent enterprise. In 1850 there were five furnaces and three forges in this county. Since then its iron industry has sensibly declined. Chestnut Grove furnace, at Whitestown, in Adams county, was built in 1830, and is still active. About 1830 Maria furnace was built in Hamilton- ban township, in this county, by Stevens & Paxton (Thad- deus Stevens), but was abandoned about 1837. The first fiirnace in Franklin county was Mount Pleasant, in Path valley, five miles northwest of Loudon, which was erected soon after the peace of 1783 by three brothers, William, Benjamin, and George Chambers. A forge was also erected by them as early as 1783. This furnace and forge were destroyed in 1843. A furnace called Richmond, built in 1865, now occupies the site of Mount Pleasant furnace. Soundwell forge, at Roxbury, sixteen miles north of Cham- bersburg, on Conodoguinet creek, was built in 1798, by Leephar, Crotzer & Co., and was active until 1857. Roxbury furnace, at or near the same place, was built in 1815 by Samuel Cole, and is now abandoned. In the old " pack- horse" days there was an active iron trade carried on at Roxbury. Carrick forge, four miles from Fannettsburg, in Franklin county, was built in 1880, and was in operation in 1856. A furnace of the same name was built m 1828 by General Samuel Dunn, which is still active. Loudon forge and furnace were built about 1790 by Colonel James Cham- bers, and destroyed about 1840. Valley forge, near Loudon, in Franklin county, was built in 1804, and abandoned after 1856. Other old forges in Franklin county were abandoned before 1850. Mont Alto furnace, in the same county, was built in 1807 by Daniel and Samuel Hughes, and is still ac- tive. Two forges of the same name, which are yet in opera- tion, were built in 1809 and 1810 about four miles from the furnace. A foundry was built in 1815, a rolling mill in 1832, and a nail factory in 1835. About 1850 the nail factory was burned down, and soon after 1857 the mill was abandoned. Caledonia forge, in Franklin county, on Conococheague creek, ten miles southeast of Chambersburg, was built in 1830 by Stevens & Paxton. Caledonia furnace, at the same place, was built in 1837 by the same firm, after the aban- donment of Maria furnace, in Adams county. For many years previous to 1863 this furnace and forge were owned by Hon. Thaddeus Stevens, in which year they were burned by the Confederates, under General Lee, when on the march to Gettysburg. Franklin furnace, in St. Thomas township, was built by Peter and George Housum in 1828, and is still running on charcoal. There were a few other charcoal fur- naces in this county which have left scarcely their names by which to be remembered. Early in the present century nails and edge tools were made in large quantities at several establishments at Chambersburg and in its vicinity. One of these, the Conococheague rolling mill and nail factory, was established by Brown & Watson in 1814. Liberty forge, at Lisburn, on Yellow Breeches creek, in Cumberland county, was built in 1790, and is still active. An older forge, long abandoned, is said to have been built at Lisburn in 1783. A few other forges in -Cumberland county were built prior to 1800. Cumberland furnace, ten miles southwest of Car- lisle, on Yellow Breeches creek, is said to have been built in 1794 by Michael Ege. It blew out permanently in Decem- ber, 1854. Holly furnace, at Papertown, in the same county, is said to have been built about 1785 by Stephen Foulk and William Cox, Jr. A forge was in existence here in 1848. Holly furnace was torn down in 1855 to give place to a paper mill. It was once owned by Michael Ege. Two furnaces, now abandoned, once stood near Shippensburg in this coun- ty — Augusta, built in 1824, and Mary Ann, built in 1826. Big Pond furnace, built in 1836, between Augusta and Mary Ann furnaces, was burned down in 1880. Jacob M. Halde- man removed from Lancaster county to New Cumberland, at the mouth of Yellow Breeches creek, on the Susquehanna, about 1806. He purchased a forge at this place and added a rolling and slitting mill, which were operated until about 1826, when they were allowed to decay. Fairview rolling mill, about a mile from the mouth of Conodoguinet creek, in Cumberland county, and two miles above Harrisburg, was built in 1833 by Gabriel Heister and Norman Callender, of Harrisburg, to roll bar iron. Jared Pratt, of Massachusetts, leased the mill in 1836, and added a nail factory. Michael Ege was for nearly fifty years a prominent ironmaster of Cumberland county, owning, a short time before his death. Pine Grove furnace, the Carlisle iron works. Holly furnace, and Cumberland furnace. He and his brother George Ege, already mentioned, were natives of Holland. He died on August 31, 1815. In 1840 there were 8 furnaces and 11 forges, bloomaries, and rolling mills in Franklin county, and 6 furnaces and 5 forges and rolling mills in Cumberland county. Schuylkill county has had several forges, mainly at or near Port Clinton, the first of which at that place appears to have been built in 1801. Between 1800 and 1804 a small charcoal furnace was built by Reese & Thomas at Pottsville. In 1807 Greenwood furnace and forge were erected at Potts- 48 THE MINES, MINERS AND MINING INTEEESTS OF THE UNITED STATES. ville by John Pott, the founder of the town, which was laid out in 1816. In 1832 there were in operation in Schuyllcill county Greenwood furnace and forge^ and Schuylkill, Bruns- wick, Pine Grove, Mahanoy, and Swatara forges. A furnace called Swatara, six miles from Pine Grove, was built in 1830, which was followed by Stanhope furnace; still nearer to Pine Grave, in 1835. All of these were charcoal enterprises. In 1785 Henry Fulton established a "nailery" in Dauphin county, probably at Harrisburg. It is said to have been " only a little remote from a smithy." In 1805 there were two furnaces and two forges in the county. Oakdale forge, at Elizabethville, appears to have been built in 1830. Vic- toria furnace, on Clark's creek, was built in that year. In 1832 there were three forges and two furnaces in the county. Emeline furnace, at Dauphin, was built about 1835. The first furnace at Middletown, in this county, was built in 1833, and a second furnace was built in 1819 — both cold-blast charcoal furnaces. Manada furnace, at West Hanover, was built in 1837 by E. B. & 0. B. Grubb. The first rolling mill in the county was the old Harrisburg mill, at Harrisburg, built in 1836. The first anthracite furnace in the county was built at Harrisburg, in 1845, by Governor David E. Porter. Hon. Siinon Cameron has been prominently iden- tified with the iron interests of this county. A furnace and forge, probably Paxinas, were in operation in Shamokin township, Northumberland county, as early as 1830. Berlin furnace and forge were built near Hartleytown, in Union county, in 1827. Forest furnace, near Milton, in Northum- berland county, was built in 1846, and Beaver furnace, near Middleburg, in Snyder county, in 1848 — both charcoal fur- naces. Esther furnace, about three miles south of Cata- wissa, on East Eoaring creek, in Columbia county, was built in 1802 by Michael Bitter & Son, who cast many stoves. In 1836 the furnace was rebuilt by Trago & Thomas. Catawissa furnace, near Mainville, in Columbia county, was built in 1825, and a forge was built in 1824, near the same place. In 1832 there were two furnaces and two forges in Catawissa township. In 1837 Briar Creek furnace, two miles from Ber- wick, in Columbia county, was built. In 1845 Fincher & Thomas built Penn charcoal furnace, on Catawissa creek, one mile east of Catawissa. AH of these furnaces have been abandoned, but the forge at Mainville is still active. A charcoal furnace called Liberty was built at Mooresburg in Montour county, in 1838. A furnace at Danville, in Montour county, was built in 1838 to use charcoal, but was altered in the following year to use anthracite. Danville roll- ing mill was built in 1845, Montour in 1845, and Eough-and- Eeady in 1847— all at Danville. About 1778 a bloomary forge was built on Nanticoke creek, near the lower end of Wyoming valley, in Luzerne county, by John and Mason F. Alden. Another bloomary forge was erected in 1789 on Lackawanna river, about two miles above its mouth, lay Dr. William Hooker Smith and Jame=i Sutton. Still another bloomary forge was erected in 1799 or 1800, on Eoaring brook, at Scranton, then called Slocum's Hollow, by two brothers, Ebenezer and Benjamin Slooum. The product of these bloomaries was taken down the Susquehanna river.in Durham boats. They all continued in operation until about 1828. Nescopeck forge, in Luzerne county, was built in 1821, and abandoned about 1854. Shickshinny charcoal furnace was built in 1846, and abandoned about 1860. In 1811 Francis McShane established a small cut-nail factory at Wilkesbarre, " and used anthracite coal in smelting the iron." Wyoming rolling mill, at Wilkesbarre, was built in 1842, and abandoned about 1850. It was followed by Lacka- wanna, at Scranton, in 1844. Lackawanna county owes its present prominence in the iron industry to the courage, energy, and business sagacity of two brothers, George W. and Sslden T. Scranton, and their cousin, Joseph H. Scranton, the two brothers commencing operations in 1840 at Scranton, and their cousin joining them soon afterwards. A furnace was built in Lycoming county in 1820, four miles from Jersey Shore, and named Pine creek. In 1832 it was owned by Kirk, Kelton & Co. A forge was added at the same place in 1831. Heshbon forge, furnace and rolling mill, on Lycoming creek, five miles above its mouth, were built, respectively, in 1828, 1838, and 1842. Hepburn forge, on the same creek, twelve miles north of Williamsport, was built in 1830 and Cresson rolling mill, one mile lower down the stream was built in 1842. About 1835 Astonville fur-l| nace, near Ealston, was built to use coke, but charcoal was soon substituted. At Ealston a charcoal furnace, rolling mill, nail factory, etc., were erected by the Lycoming Valley Iron Company in 1837. Washington Furnace, on Fishing creek, at Lamar, in Clinton county, was built in 1811. It was last in blast in 1875. A forge was added in 1837, and it also is silent. A furnace at Farrandsville, near the mouth of Lick run, in this county, which was built about 1836, to use coke, is said to have sunk, in connection with a nail mill, foundry, and other enterprises, over half a million dollars, contributed by Boston capitalists. Mill Hall, Sugar Valley, and Lamar are the names of other charcoal iiirnaces in the same county. Of the enterprises above named, Washington furnace and forge and Mill Hall furnace are the only ones that have notbeen abandoned. In 1814 Peter Karthaus, a native of Hamburg, in Germany, but afterwards a merchant of Bal- timore, and Eev. Frederick W. Geissenhainer, a native of Muhlberg, in Germany, established a furnace at the mouth of the Little Moshannon, or Mosquito creek, in the lower end of Clearfield county. The firm of Karthaus & Geissen- hainer was dissolved on the 18th day of December, 1818. It had been organized in 1811, partly to mine and ship to eastern markets the bituminous coal of Clearfield county. The furnace was operated with partial success for several years. A furnace was built about 1840 at Blossburg, in Tioga county, to use charcoal, but in 1841 it was altered by J. G. Boyd and another person to use coke. It soon chilled, however, and was abandoned. — Compiled from James M. Swank^s Seport on Iron and Steely Tenth Census of the U. S. THE MANUFACTURE OF CHARCOAL IRON IN THE JUNIATA VALLEY. AS early as 1767 a company called the Juniata Iron Company was organized, apparently by capital- ists of eastern Pennsylvania, to search for iron ore in the Juniata valley, and probably with the ulterior object of manufacturing iron. It was in existence from 1767 to 1771, during which its agent, Benjamin Jacobs. made for it some surveys and explorations and dug a few tons of iron ore, but where these operations were conducted and who were the members of this pioneer company some future antiquarian must discover. The first iron enterprise in the Juniata valley was Bedford furnace, built in 1785, on Black Log creek, below its junction with Shade creek at Orbisonia, in Huntingdon county, by the Bedford company, composed of Edward Eidgely, Thomas Cromwell, and George Ashman. It made from eight to ten tons of pig iron weekly. It was constructed in part of wood, and was five feet wide at the bosh, and either fifteen or seventeen feet high. A forge was built on the Little Aughwick creek by the same com- pany, a short distance from the furnace, about 1785, which made horseshoe iron, wagon tire, harrow teeth, etc. Large stoves and other utensils were cast at the furnace. At the Philadelphia Exhibition was a stove-plate cast at this lur- nace in 1792. Bar iron made at Bedford forge was bent into the shape of the letter U, turned over the backs of horses, and in this manner taken by bridle-paths to Pitts- burgh. Bar iron and castings from Bedford furnace and later iron works in the Juniata valley were also taken down the Juniata river in arks, many of them descending to as low a point as Middletown on the Susquehanna, whence the iron was hauled to Philadelphia, or sent to Baltimore in arks down the Susquehanna river. The furnace and forge have long been .abandoned. Three other charcoal furnaces have been built at or near the site of Bedford furnace during the present century. One of these was Eockhill, on Black Log creek, three-quarters of a mile southeast of Orbisonia, built in 1830. It was in operation in 1972, but in 1873 gave place to the two new coke furnaces of the Eock Hill Iron iv and Coal Company. Centre iiirnace, on Spring creek in Centre county, was the second furnace in the Juniata valley. It was built in the summer of 1792 bv Colonel John Patton and Colonel Samuel Miles, both Eevolutionary officers. The latter afterwards founded the iron works at Milesburg, in this county. The first forge in Centre county was Eoc'^ forge, on Spring creek, built in 1793 by General Philip Benner, of Chester county, who subsequently became an ex- THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 49 tensive manufacturer of Juniata iron. He died in 1832, aged 70 years, long belore which time his Rock forge enterprise had expanded into a rolling and slitting mill, nail factory, blast furnace, etc. The furnace was built in 1816. General Banner had made iron at Nutt's forge at Coventry after the Revolution. In 1795 Daniel Turner built Spring creek forge, and in 1796 Miles, Dunlop & Co. built Harmony forge, on Spring' creek. Logan furnace, near Bellefonte, was built in ISOl) by John Dunlop, who afterwards origi- nated other iron enterprises in Centre county, including a forge at Bellefonte. Tussey furnace, in Ferguson township, fourteen miles south of Bellefonte, was built about 1805 by General William Patton. In 1807 Roland Curtin, a native of Ireland, and father of Governor Andrew G. Curtin, in company with Mosea Boggs, erected Eagle forge on Bald Eagle creek, about five miles from Bellefonte, Boggs re- maining a partner only a short time. Pig iron for this forge was obtained from Tussey furnace. In 1817 Mr. Cur- itin built a fiirnace called Eagle, near his forge. In 1828 a small rolling mill was added, tor the manufacture of bar iron and nails. About 1832 he built Martha furnace, on Bald Eagle creek, about eleven miles west of Bellefonte. He died in 1850, aged 84 years. About 1820 Hardman Philips, an enterprising Englishman, erected at Philipsburg a forge, foundry, and screw factory — ^the last named being one of the first of its kind in this country. Cold stream forge was erected about 1832 by John Plumbe, Sr., in Rush towaship, Centre county. Hecla furnace, near Hublers- burg, was built in 1820. Hannah furnace, about ten miles northeast of Tyrone, was built iu 1828. Julian furnace, on Bald Eagle creek, was built in 1835. A rolling mill was built by Valentines & Thomas, near Bellefonte, in 1824. Abram S. Valentine, of this firm, was the inventor of an ore washing machine. Barree forge, on the Juniata, in Huntingdon county, was built about 1794 by Edward Bartholomew, of Philadelphia, and his son-in-law, Greenberry Dorsey, of Baltimore, to con- vert the pig iron of Centre fiirnace into bar iron. Hunting- don furnace, in Franklin township, was built in 1796, four miles from the mouth of Spruce creek, on Warrior's Mark run, but after one or two blasts a new stack was built a mile lower down the stream. The furnace was built for Morde- cai Massey and Judge John Gloninger by George Anshutz, who in 1808 became the owner of one-fourth of the proper- ty. At the same time G«orge Shoenberger purchased a one- fourth interest. Prior to 1808 Martin Dubbs had become part owner. A forge called Massey, on Spruce creek, was connected with Huntingdon furnace, and was built about 1800. The furnace has been silent since 1870. Tyrone forges, on the Juniata, were built by the owners of Hunting- don furnace, the first of the forges in 1804. In 1832 Gordon, in his Gazetteer of the State of Pennsylvania, stated that these forges, with a rolling and slitting mill and nail factory attached, formed " a very extensive establishment," owned by Messrs. Gloninger, Anshutz & Co. " The mill rolls about 150 tons, 75 of which are cut into nails at the works, 50 tons are slit into rods and sent to the West, and about 25 tons are sold in the adjoining counties." Juniata forge was built at Petersburg about 1804 by Samuel Fahnestock and George Shoenberger, the latter be- coming sole owner in 1805. Coleraine forges, on Spruce creek, were built in 1805 and 1809, by Samuel Marshall, an Irishman. There have been many forges on Spruce creek, none of which are now in operation. Union furnace in Morris township, Huntingdon county, was built by Edward B. Dorsey and Caleb Evans in 1810 or 1811. Pennsylvania furnace, on the line dividing Huntingdon from Centre coun- ty, was built by John Lyon, Jacob Haldeman, and William Wallace in 1813. It is now in operation, using coke. About 1818 Reuben Trexler, of Berks county, built a bloomary called Mary Ann, in Trough Creek valley, and about 1821 he added Paradise furnace.. In 1832 John Savage, of Phila- delphia, built a forge near Paradise furnace, which is said to have been the first forge in this country " that used the big hammer and iron helve on the English plan." George Shoenberger was born in Lancaster county, and daring the closing years of the last century settled on Shaver's creek, in Huntingdon county, as did also his brother Peter The town of Petersburg was laid out in 1795 by Peter Shoenberger. On September 27, 1800, Peter sold to 4 his brother George the Petersburg tract of land. George Shoenberger died in 1814 or 1815. His only son. Dr. Peter Shoenberger, succeeded him in the ownership of his iron enterprises. Etna furnace and forge, on the Juniata, in Catharine township, Blair county, were built in 1805 by Canan, Stewart & Moore. John Canan was an Irishman from Donegal. The furnace was the first in Blair county. Cove forge, on the Frankstown branch of the Juniata, in Blair county, two miles northeast of Williamsburg, was built between 1808 and 1810 by John Royer, who was born in Franklin county in 1779 and died at Johnstown in 1850. Allegheny furnace was built in 1811 by AUinson & Hender- son, and was the second furnace in Blair county. In 1835 it was purchased by Elias Baker and Roland Diller, both of Lancaster county. The next, furnace in Blair county was Springfield, built in 1815 by John Royer and his brother Daniel. Springfield furnace and Cove Ibrge are now owned by John Royer, born in 1799, son of Daniel. The next furnace in this county was Rebecca, built in 1817. It was the first furnace erected by Dr. Peter Shoenberger, who afterwards became the most prominent ironmaster in the state. His other iron enterprises, in the Juniata valley and elsewhere were numerous and extensive, and their begin- ning followed closely upon the building of Rebecca furnace. The Doctor was born at Manheim, Lancaster county, in 1781 ; died at Marietta, Lancaster county, on June 18, 1854, aged 73 years; and was buried at Laurel Hill cemetery, Philadelphia. Elizabeth furnace, near Antestown, in Blair county, is said to have been the first in the country to use gas from the tunnel-head for the production of steam. The furnace was built in 1832, and the gas was first used in 1836. The improvement was patented about 1840 by the owner of the furnace, Martin Bell. A furnace and forge were built at Hopewell, in Bedford county, about the year 1800, by William Lane, of Lancaster county. On Yellow creek, two miles from Hopewell, Mr. Lane built Lemnos forge and slitting mill in 1806. In 1841 Loy & Patterson built Lemnos furnace, on the same creek, two miles west of Hopewell, to use charcoal. The furnace is now abandoned. Bedford forge, also on Yellow creek, was built by Swope & King in 1812. Elizabeth furnace, now Bloomfield, was built at Woodbury, in Bedford county, in 1827, by King, Swope & Co., Dr. Shoenberger being a partner. In 1845 the furnace was removed to Bloomfield, in Bedford county. In 1840 Bedford county, which then embraced Fulton county and a part of Blair county, contained nine furnaces and two forges. Hanover furnace and forge, nine miles below Mc Connellsburg, in Fulton county, known as the Hanover iron works, were regarded in their day as an extensive enterprise. The forge was built in 1822 by John Doyle, and the furnace in 1827 by Jqhnlrvine. Both were aban- doned about 1850. There areTibw' n'o iron enterprises in Fulton county. Cemented or blister steel was made at Caledonia, near Bedford, for several years before the beginn- ing of this century by William McDermett, who was born ne^r Glasgow, Scotland, and emigrated to this country at the close of the Revolutionary war. Mr. McDermett's works continued in successful operation for about ten years, when financial reverses caused their abandonment. A few years later he removed to Spruce creek, in Huntingdon "county, and there ended his days about 1819. Josephine, one of his daughters, married, in 1820, David_Jgj^ojtgr, then a young ironmaster on Spruce creek, but afterwards governor of Pennsylvania. About 1818 David R. Porter and Edward B. Patton built Sligo forge, on Spruce creek. After Mr. McDermett's removal to Spruce creek a forge and steel works, called Claubaugh, were built on the creek by his nephew, Thomas McDermett, at which steel was made by the process that had been in use at Caledonia. These works became the property of Lloyd, Steel & Co. about 1819, by whom they were operated for a few years, when they were abandoned. There was a very early forge in Juniata county. It was built in 1791 by Thomas Beale and WUliam Sterrett on Licking creek, two miles west of Mifflintown. It had two hammers and was in operation about four years. The pig iron for this forge was mainly obtained fi:om Centre furnace, but some was brought from Cornwall fiirnace and some from Bedford furnace. Hope fiirnace, a few miles firom 50 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. Lewistown, and Freedom forge, three miles from the same place, were built in 1810, and were probably the first iron enterprises within the present limits of Mifflin county. General James Lewis was one of the proprietors of Hope furnace. In 1832 there were three furnaces and one forge in Mifflin county, and in 1850 there were five furnaces and two forges. The first iron enterprise in Perry county was probably a forge on Cocalamus creek, built in 1807 or 1808 by General Lewis, and operated by him in connection with Hope furnace. It was abandoned about 1817. It had two fires and two hammers, and was called Mount Vernon. Juniata furnace, three miles from Newport, was built in 1808 by David Watts, Esq., an eminent lawyer of Carlisle. In 1832 it was owned by Captain William Power. A forge called Flo was built on Sherman's creek, about four miles from Duncannon, in Perry county, in 1829, by Lindley & Speek. A forge was also built at Duncannon in the same year by Stephen Duncan and John D. Mahon. Dun- cannon rolling mill was built in 1838 by Fisher, Morgan & Co. Montebello furnace, at Duncannon, was built in 1834 ; Perry fiirnaoe, four miles from Bloomfield, in 1840 ; Oak Grove, four miles from Landisburg, by Dr. Adam Hayes and his brother John, in 1830 ; and Caroline, at Bailysburg, in 1833. All of the charcoal furnaces of Perry county have been abandoned. Many other charcoal furnaces and forges and a few rolling mills were built in the upper part of the Juniata valley before 1850. In 1832 there were in operation in Huntingdon county, which then embraced Blair county, eight furnaces, ten forges, and one rolling and slitting mill. Each of the furnaces yielded from 1,200 to 1,600 tons of iron annually. In the same year an incomplete list enumer- ated eight furnaces and as many forges in Centre county. In 1850 there were in Huntingdon and Centre counties and in Blair county (formed out of Huntingdon and Bedford in 1846) and in Mifflin county forty-eight furnaces, forty-two forges, and eight rolling mills, nearly all of which were in Huntingdon and Centre. Most of these charcoal furnaces and forges and rolling mills have been abandoned. Among the persons who have been prominent in the iron manufac- ture in the Juniata valley special reference may be made, in addition to those who have been mentioned, to Henry S. Spang, of Montgomery county, John Lyon, of Cumberland county, and Anthony Shorb, of Lebanon county Most of the iron made in the Juniata valley during the palmy days of its iron industry was sold at Pittsburgh. Before the completion of the state canal and railroads it was trans- ported with great difficulty. Bar iron from Centre county was at first carried on the backs of horses to the Clarion river, where it was loaded on boats, upon which it was floated to Pittsburg. Pig iron from Huntingdon county was hauled to Johnstown, and thence floated to Pittsburg in the same manner as the bar iron from Centre county. ^-CompUedfrom /umfti M. Swank^s Beport on Iron and Bteelj Tenth Census of the U. 8. THE MANUFACTURE OF CHARCOAL IRON IN WESTERN PENNSYLVANIA. THE first iron manufactured west of the Allegheny mountains is said to have been made in 1790, in Fayette county, Pennsylvania, " in a smith's fire," by John Hayden, of Haydenville, in that county. Taking a sample on horseback to Philadelphia, he enlisted his relative, John Nicholson of that city, then state comp- troller, in a scheme for building Fairfield ftirnace, on George's creek, seven miles south of Uniontown, and the two ''^then went on to build the furnace," which they com- pleted in 1792. A forge was built about the same time, and probably before the furnace. In the mean time William Turnbuil and Peter Marmie, of Philadelphia, built a fur- nace and forge on Jacob's creek, a mile or two above its entrance into the Youghiogheny river. The furnace was first blown in on November 1, 1790, and the iron was tried the same day in the forge. The furnace and forge were on the Fayette county side of the creek, and were called the Alliance irou works. The furnace was successfully operated for many years, and the stack is still standing, but in ruins. An extract from a letter written by Major Craig, deputy quartermaster general and military storekeeper at Fort Pitt, to General Knox, dated January 12, 1792, says ; " As there is no six-pound shot here, I have taken the liberty to engage four hundred at Turnbuil & Marmie's furnace, which is now in blast." The firm was dissolved August 22, 1793, Peter Marmie becoming sole owner of the works. John and Andrew Oliphant bought a half interest in Fair- field furnace in 1796, and in a few years they became its sole owners. Fairchance furnace, on George's creek, six miles south of Uniontown, was built in 1794 by John Hay- den, William Squire, and Thomas Wynn. J. & A. Oliphant bought it about 1805. It was rebuilt two or three times, and kept in operation until 1873. A forge was built near the furnace about 1794. The Oliphants built Sylvan forges, oil George's creek, below Fairfield and Fairchance furnaces, to\ convert their pig-iron product into bar iron. Union furnace,\ now Dunbar furnace, was built by Colonel Isaac Meason on Dunbar creek, four miles south of Connellsville, in 1791, and was put in blast in March, 1791. A forge was connect- ed with this furnace. It was succeeded in 1793 by a larger furnace of the same name, built near the same site by Colonel Meason, John Gibson, and Moses Dillon. Another of Colonel Meason's enterprises was Mount Vernon furnace, on Mountz's creek, eight miles east of its mouth, built before July, 1800. In 1801 it was rebuilt. It is still stand- ing but abandoned. In 1805 there were five fiirnaces and six forges in Fayette county. In 1811 there were ten blast furnaces, one air furnace, eight forges, three rolling and slitting mills, one steel furnace, and five trip-hammers. At a subsequent date there were twenty furnaces in this county. Fayette county was a great iron centre at the close of the last and far into the present century. For many years Pittsburg and the Ohio and Mississippi valleys were almost entirely supplied by it with castings of all kinds, and with pig and bar iron. Long before 1850, however, the fires in most of its furnaces and forges were suffered to die out. In 1849 only four of its furnaces were in blast. Other fiirnaces, to use coke, have since been built within its boundaries, but its fame as a centre of iron production has departed. In its stead it now enjoys the reputation of being the centre of pro- duction of the far-famed Connellsville coke. The steel fur- nace above referred to was at Bridgeport, adjoining Browns- ville, was owned by Morris Truman & Co., and made good steel. In that year Truman & Co. advertised that they had for sale "several tons of steel of their own converting, which they will sell at the factory for cash, at 12 dollars per cwt., and 20 dollars per faggot for Crowley." The first nail fac- tory west of the Alleghenies was built at Brownsville, before 1800, by Jacob Bowman, at which wrought nails, made by hand, were produced in large quantities. The rolling and slitting mills which were in existence in Pennsylvania prior to 1816 neither puddled pig iron nor rolled bar iron, but rolled only sheet iron and nail plates with plain rolls from blooms heated in a hollow fire and hammered under a tilt-hammer. Cramer's Pittsburg Almanac for 1812 says that in 1811 there were three such mills in Fayette county." The first rolling mill erected in the United States to pud- dle iron and roll iron bars was built by Colonel Isaac Meason in 1816 and 1817, on the Redstone creek, about midway between Connellsville and Brownsville, at a place called Plumsock, in Fayette county. Colonel Meason had previously erected forges at Plumsock. Thomas C. Lewis was the chief engineer in the erection of the mill, and George Lewis, his brother, was the turner and roller. They were Welshmen. The project was conceived by Thomas C. Lewis, and by him presented to Colonel Meason. F. H. Oliphant told us in his lifetime that it was built " for making bars of all sizes and hoops for cutting into nails." He said further that " the iron was refined by blast, and then puddled." Samuel C. Lewis, the son of Thomas C. Lewis, assisted as a boy in rolling the first bar of iron. He is still living at Pittsblirg, at the age of 80 years. Mr. Lewis informs us that his father and uncle, being skilled workmen, and therefore prohibited by an English statute t from leaving their native land, were compelled to resort to' artifice to secure their passage across the Atlantic. The mill contained two puddling furnaces, one refinery, one heating furnace, and one tilt-hammer. R.aw coal was used in the puddling and heating furnaces, and coke in the re- THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 51 finery. The rolls were cast at Dunbar furnace, and the lathe for turning the rolls was put up at the mill. The mill went into operation on September 15, 1817, and was kept in opera- tion until 1824, the latter part of the time by a Mr. Palmer. A flood in the Redstone caused the partial destruction of the mill, the machinery of which was subsequently taken to Brownsville. Colonel Meason, who did so much to develop the iron resources of Fayette county, was a native of Vir- ginia. His wife was a Miss Harrison of that state. He died in 1819. A furnace named Mary Ann was erected in Greene county at a very early day, about twenty miles from Union- town, and on the opposite side of Ten-mile creek from Clarksville. It was abandoned long before 1820. An ad- vertisement for its sale, by " Samuel Harper, agent for the proprietors,'' dated July 23, 1810, called it "The Iron Works," late the property of Captain James Robinson. It was probably built about 1800. Gordon, in his Gazetteer, (1832), says that " there were formerly in operation on Ten- mile creek a forge and furnace, but they have been long idle and are falling to decay." This reference is to Robinson's works. Greene county has probably never had any other iron enterprises within its limits. The beginning of the iron industry at Pittsburg was made at a comparatively modern period. George Anshutz, the pioneer in the manufacture of iron at Pittsburg, was an Alsacian by birth, Alsace at the time being under the control of France. He was born November 28, 1753. In 1789 he emigrated to the United States, and soon afterwards located at a suburb of Pittsburg now known as Shady Side, where he built a small furnace on Two-mile run, prob- ably completing it in 1792. In 1794 it was abandoned for want of ore. It had been expected that ore could be obtained in the vicinity, but the expectation was not rea- lized, and the expense entailed in bringing ore from other localities was too great. In 1794 the fire of the furnace lighted up the camp of the participants in the whisky insurrection. The enterprise seems to have been largely devoted to the casting of stoves and grates. The ruins of the furnace were visible until about 1850. After the aban- donment of his furnace Anshutz accepted the management of John Probst's Westmoreland furnace, near Laughlins- town, and remained there about one year, whence he removed to Huntingdon county, where, in connection with Judge John Gloninger and Mordecai Massey, he built Huntingdon furnace in 1796. He died at Pittsburg, Feb- ruary 28, 1837, aged 83 years. In 1807 there were three nail factories in existence at Pittsburg — Porter's, Stur- geon's, and Stewart's, according to Cramer's Pittsburg Almanac, one of which made 100 tons of cut and wrought nails annually. In 1810 about 200 tons of cut and wrought nails were made at Pittsburg. In 1813 there were two iron foundries at Pittsburg — McClurg's and Anthony Bee- len's, and one steel furnace, owned by Tuper & McKowan. The first rolling mill at Pittsburg was built in 1811 and 1812 by Christopher Cowan, an Englishman. It was called the Pittsburg rolling mill. This mill had no puddling fur- naces, nor was it built to roll bar iron. It was built to manufacture sheet iron, nail and spike rods, shovels, spades, etc. Cramer's Pittsburg Almanac for 1812 says of this en- terprise : " Christopher Cowan is erecting a powerful steam- engine, 70-horse power, to run a rolling mill, slitting mill, and tilt-hammer ; to make iron, nails, sheet iron, spike and nail rods, shovels and tongs, spades, scythes, sickles, hoes, axes, frying pans, cutting knives, chains, plough irons, hatchets, claw hammers, chizzels, augurs, spinning-wheel irons, and smiths' vises — capital $100,000." This rolling / mill stood at the intersection of Penn street and Cecil's alley, where the fourth ward school-house now stands. In 1818 it was owned by Ruggles, Stackpole & Whiting, who failed in 1819. In 1826 it was owned by R. Bowen. The second rolling mill at Pittsburg was the Union on the Mon- ongahela river, built in 1819, and accidentally blown up and permanently dismantled in 1829, the machinery being taken / to Covington, Kentucky. This mill had four puddling fur- . \ nnces— the first in Pittsburg. It was also the first mill in \Pittsburg to roll bar iron. It was built by Baldwin, Robinson, McNickle & Beltzhoover. It is claimed that the first angle iron in the United States was rolled at this mill by Samuel Lenard, one of its proprietors, who also rolled ell iron for salt- pans. On Pine creek, on the site of the present works of Spang, Chalfant & Co., at Etna, Belknap, Bean & Butler manu- factured scythes and sickles as early as 1820, but in 1824 their works were enlarged and steam-power introduced for the purpose of rolling blooms. In 1826 they were operated by M. B. Belknap. They afterwards passed into the hands of Cuddy & Ledie, and were purchased by H. S. Spang in 1828, to roll bar iron from Juniata blooms. Sligo rolling mill was erected where it now stands by Robert T Stewart and John Lyon in 1825, but was partly burned down that year. The Juniata iron works were built in 1824 by Dr. Peter Shoenberger. Grant's Hill works were erected in 1821 by William B. Hayes and David Adams. They stood near where the court-house now stands. Water for the gen- eration of steam had to be hauled fi-om the Monongahela river. The Dowlais works, in Kensington, were built in 1825 by George Lewis and Reuben Leonard. In 1826 all of these mills did not make bar iron ; some only manipula- ted rolled and hammered iron. In 1829 Pittsburg had eight rolling mills, using 6,000 tons of blooms, chiefly from the Juniata valley, and 1,500 tons of pig iron. In the same year there were nine found- ries which consumed 3,500 tons of iron. In 1828 the iron rolled was 3,291 tons; in 1829 it was 6,217 tons; and in 1830 it was 9,282 tons. In 1831 there were two steel fur- naces at Pittsburg. Cast iron began to be used in this year for pillars, the caps and sills of windows, etc. In 1856 there were nine rolling mills in operation, and eighteen foun- dries, engine-factories, and machine-shops. In 1836 there were in Pittsburg and Allegheny county twenty-five roll- ing mills. Clinton furnace, built in 1859 by eras', Bennett & Co., and blown in on the last Monday of October in that year, was the first furnace built in Allegheny county after the aban- donment in 1794pf George Anshutz's furnace at Shady Side — a surprisingly long interregnum. Westmoreland county speedily followed Fayette county in the manufacture of iron. Westmoreland furnace, near Laughlinstown, in Ligo- nier valley, or Four-mile run, was built about 1792 by John Probst, who also built a small forge about the same time. Neither the furnace nor the forge was long in operation, both probably ceasing to make iron about 1810. On the 1st of August, 1795, George Anshutz, manager of Westmoreland furnace, advertised stoves and castings for sale. General Arthur St. Clair built Hermitage furnace, on Mill creek, two miles northeast of Ligonier, about 1802. It was man- aged for its owner by James Hamilton, and made stoves and other castinge. It was in blast in 1806. In 1810 it passed out of the hands of General St. Clair, and was idle for some time. In 1816 it was started again by O'Hara & Scully, under the management of John Henry Hopkins, afterwards Protestant Episcopal bishop of Vermont. In October, 1817, Mr. Hopkins left the furnace, himself a bankrupt, and it has never since been in operation. The stack is still stailding. General St. Clair died a very poor man in 1818, aged 84 years, and was buried at Greensburg. Mount Hope flirnace was built about 1810, in Donegal township, by Trevor & McClurg. Mount Pleasant furnace, on Jacob's creek, in Mount Pleasant township, was built about 1810 by Mr. McClurg, and went out of blast in 1820 while under the control of Mr. Freeman. Washington flirnace, near Laughlinstown, was built about 1809 by Johnston, McClurg & Co. It was abandoned in 1826, and rebuilt in 1848 by John Bell & Co. It was in blast as late as 1854. Jonathan Maybury & Co. owned Fountain furnace before 1812. It stood on Camp run, in Donegal township, at the base of Laurel hill. The firm was dissolved on August 19, 1812. Kingston forge, erectcAJn -1811 on Loy- alhanna creek, ten miles east of GreeSburgTby A. Johnston & Co., went into operation early in 1812. Ross furnace, on Tub-mill creek, in Fairfield township, was built in 1814 by Colonel Meason, and abandoned about 1850. It made pig iron, stoves, sugar-kettles, pots, ovens, skillets, etc. Hannah furnace, in Fairfield township, was built about 1810, a short distance below Ross furnace, on Tub-mill creek, by John Beninger. He also built a small forge on the same stream, where the borough of Bolivar now stands. Both the furnace and forge ceased to make iron soon after they were built, Baldwin furnace, on Laurel run, near Ross furnace, is said to have been built by James Stewart about 1810. It ran but a short time. In 1831 there were in operation in West- 62 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. moreland county one furnace, Eoss, operated by Colonel Mathiot, and one forge, Kingston, on Loyalhanna creek, operated by Alexander Johnston. The latter named gentle- man, whose name appears above in connection with another iron enterprise, was the father of Governor William F. John- ston. He was born in Ireland July, 1772, and died July 15, 1872, aged 100 years. Seven other charcoal furnaces in Westmoreland county were built between 1844 and 1855. All of the charcoal furnaces of Westmoreland county have been abandoned. The early Westmoreland furnaces shipped pig iron and castings by boats or arks on the Conemaugh and Allegheny rivers to Pittsburg, much of which found its way down the Ohio river to Cincinnati and Louisville. Shade furnace was built in 1807 or 1808, on Shade creek, Som- erset county, and was the first iron enterprise in the county. It was built by Gerehart & Reynolds upon land leased from Thomas Vickroy. In November, 1813, Vickroy advertised the furnace for sale, at a great bargain. A sale was effected in 1819 to Mark Richards, Anthony S. Earl, and Benjamin Johns, of New Jersey, constituting the firm of Richards, Earl & Co., who operated the furnace down to about 1830. In 1820 they built a forge called Shade, below the furnace, which was carried on by William Earl for four or five years, and after- wards by John Hammer and others. The furnace was con- tinued, at intervals, by various proprietors to the close of 1858. About 1811 Joseph Vickroy and Conrad Piper built Mary Ann forge, on Stony creek, about five miles below Shade furnace, and a half a mile below the mouth of Shade creek. David Livingston was subsequently the owner of the forge, and operated it for several years. Richard Geary, the father of Gov. John W. Geary, was the millwright who built the forge for the owners. Pig iron was sometimes packed on horseback to this forge from Bedford county, the horses taking salt from the Conemaugh salt works, and bar iron as a return load. In the year 1809 or 1810 Peter Kim- mell and Matthias Scott built a forge for the manufacture of bar iron on Laurel Hill creek, now in Jefferson township, in the western part of Somerset county. , It ceased operations about 1815. Supplies of metal were obtained from Bedford and Fayette counties. About the year 1810 Robert Philson erected a forge and furnace on Casselman's river, in Turkey- foot township, to use ore mined in the immediate vicinity. The enterprise was a failure. Four other charcoal furnaces were afterwards built in Somerset county. All of the fur- naces and forges in this county have long been abandoned. The first iron enterprise in_Cambria county was a forge at Johnstown, built on Stony creek, about 1809, by John Buck- waiter, and subsequently removed to the Conemaugh river, also at Johnstown, where it was operated with more or less regularity down to about 1835. It was used to hammer bars out of Juniata pig iron. In 1817 Thomas Burrell, the [proprietor, offered wood-cutters "fifty cents per cord for chopping two thousand cords of wood at Cambria forge, HJohnstown." About 200 pounds of nails, valued at $30, ■were made at Johnstown by one establishment in the census year 1810. About this time an enterprise was established at Johnstown by Robert Pierson, by which nails were cut with a machine worked by a treadle, but without heads, which were afterwards added by hand. Cambria county has been noted as an iron center since its first furnace, Cambria, was built by George S. King, David Stewart, John K. Shryock. and William L. Shryock in 1841, on Laurel run. It was followed in the next six years by five other 'charcoal fur- naces. All of these furnaces have been abandoned. The Cambria iron works, at Johnstown, were commenced in 1853 by a company of which Mr. King was the originator 'and of which Dr. Peter Shoenberger was a member. The first iron enterprise jn Indiana county was Indiana forge, on Finley's run, near the Conemaugh, built about 1837 by Henry and John Noble, who also built a small fur- nace as early as 1840. The forge was operated by water- power, but the furnace by steam-power. The furnace and forge were both running in the last-named year. Pig iron for the forge was at first obtained from Allegheny furnace, in Blair county. Iron ore for the furnace was obtained from the Allegheny furnace mines. Becoming embarrass- ed, the firm was succeeded about 1843 by William D. and Thomas McKernan. About 1846 the property passed into the hands of Elias Baker, who built a new furnace and forge. John Noble owned about 1837 a farm of about 200 acres in the heart of the present city of Altoona, which he sold to David Robinson, of Pleasant valley, for $4,500, taking in payment the contents of Mr. Robinson's country store, which he removed to Finley's run and added to the capital stock of the firm of Henry and John Noble. The Altoona farm is now worth many millions of dollars. Three other charcoal furnaces in Indiana county were built in 1846 and 1847. All of the Indiana furnaces and its solitary forge have long been abandoned. A blast furnace was built at Beaver Falls, on the west side of Beaver river, in Beaver county, in 1802, by Hoopes, Townsend & Co., and was blown in in 1804. A forge was connected with it from the beginning, and was in operation in 1806. The furnace and forge were in operation in 1816. The whole enterprise was abandoned about 1826. The ore used was picked out of gravel banks in the neighborhood in very small lumps. There was another early furnace in this county, named Bassenheim, built in 1814 by Detmar Basse Muller, on Connoquenessing creek, about a mile west of the Butler county line. In February, 1818, $12 per tonl was paid for hauling the pig metal made at this furnace to Pittsburg, thirty miles distant over a bad road. The fur- 1 nace was abandoned at an early day. John Henry Hopkins previously mentioned in connection with General St. Clair's furnace near Ligonier, was engaged about 1815 as a clerk at Bassenheim furnace. Prior to 1846 there were only a few furnaces in the Shenango valley — all charcoal, one of the oldest of which was Springfield furnace, half a mile from Leesburg and seven miles southeast of Mercer, built in 1837 and active in 1849. Day, in 1843, says: "Two furnaces were wrought formerly, but have since been abandoned." The geographer, Joseph Scott, says in 1806 that "a forge and fiirnace are now nearly erected " at New Castle. About 1810 there was a forge on Neshannock creek, " midway be- tween Pearson's flour mill and Harvey's paper mill,'' for the manufacture of bar iron from the ore. The first rolling mill in Lawrence county was built in 1839 at New Castle by James D. White, of that place, under the superintend- ence of S. Wilder, a native of Massachusetts. It made bar iron and cut nails, and was subsequently known as Cosalo rolling mill. Orizaba rolling mill, at the same place, was built in 1845 by Joseph H. Brown, Joseph Higgs, and Edward Thomas, who had been employed at the Cosalo mill. In 1846 and soon afterwards several furnaces were built in this valley to use its splint coal in the raw state. The first furnace in the once important but now nearly neglected ironmaking district composed of Armstrong, Butler, Clarion, Venango, and other northwestern counties, was doubtless Bear Creek, in Armstrong county, commenced in 1818 by Ruggles, Stackpole & Whiting, who then owned the Pittsburg rolling mill. In the following year, owing to the failure of this firm, it passed uncompleted into the hands of Baldwin, Robinson, McNickle & Beltzhoover, of Pittsburg. The furnace went into operation in 1819. It was abandoned long before 1850, but was running in 1832,f in which year Gordon says it was owned by Henry Baldwinj Esq., and was reputed to be the largest furnace in the United States, having made forty tons of iron in a week. This furnace had a tram-road with wooden rails, in 1818. Rocl? furnace, on Roaring run, a tributary of the Kiskiminetas, four miles east of Apollo, in Armstrong county, was built about 1825 by James W. Biddle, of Pittsburg^ and others. It has been abandoned since 1855. Slippery Rock furnace, in Butler county, and Clarion ftirnace, in Clarion county, were built in 1828— the latter by Hon. Christian Myers, "a native of Lancaster county, who built another furnace about 1844, which he called Polk. Judge Myers was the pioneer in the manufacture of iron in Clarion county, and was a man of great enterprise. Allegheny furnace, at Kit- tanning, in Armstrong county, and Venango furnace, on Oil creek, in Venango county, were built in 1830. In 1832 the former was owned by A. McNickle, and made about fourteen tons of iron weekly. From 1830 to 1850 this section of the state produced large quantities of charcoal pig iron. In 1850 there were 11 furnaces standing in Armstrong county, 6 in Butler, 28 in Clarion, and 18 in Venango— 63 m all. In 1858 there were 18 in Armstrong, 6 in Butler, 27 in Clarion, and 24 in Venango— 75 in all. All of these were charcoal furnaces, except four coke furnaces at Brady's Bend. Many of these furnaces had, however, been aban- THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 53 doned at the latter date. Nearly every one has since then been abandoned. The Great Western iron works at Brady's Bend, embracing a rolling mill, and four furnaces to use coke, were commenced by Philander Raymond in 1840. They have been abandoned for many years. The rolling mill was built in 1841 to roll bar iron, but it afterwards rolled iron rails. The iron manufactured in the Allegheny valley was taken down the Allegheny river to Pittsburg on keel-boats and arks, the business of transporting it being quite extensive. Erie charcoal furnace, at Erie, was built in 1842, and abandoned in 1849. It used bog ore. It was owned by Charles M. Reed. Liberty furnace on the north side of French creek, in Crawford county, was built in 1842 by Lowry & Co., of Meadville, and abandoned in 1849. In 1791 there were 16 furnaces and 37 forges in Pennsylvania. In 1816 there were 44 furnaces, 78 forges, and 176 naileries. In 1849 there were 298 furnaces, 121 forges, 6 bloomaries, and 79 rolling mills. Of the furnaces existing in 1849 nearly all were charcoal furnaces, only 57 being anthracite and 11 bituminous coal and coke furnaces. The charcoal iron industry of Pennsylvania still exists in a healthy con- dition, but its glory has departed . About 1840 a revolu- tion was created in the iron industry of the country, by the introduction of bituminous and anthracite coal in the blast furnace, and since about 1850 the manufacture of charcoal iron in Pennsylvania has declined. Since about the middle of the last century Pennsylvania, whose early iron history has unavoidably occupied so much of our space, has been the foremost ironmaking state in the Union. — CompUedfrom Jmnes M. Bwank^a Report on Iron and Steely Tenth Census of the U. S. EARLY IRON ENTERPRISES IN DELAWARE AND MARYLAND. IN the Colonial Records of Pennsylvania, volume 1, page 115, mention is made of one James Bowie, " living near iron hill, about eight miles distance from New Castle," in Delaware, in 1684. In Oldmixon's British Em- pire in America, edition of 1708, in referring to New Castle county, then in Pennsylvania, but now in Delaware, it is stated that there is a place in the county " called iron hill, from the iron ore found there," but the existence of an "iron mill," to use the ore, is expressly denied. This "iron hill " is undoubtedly the one referred to in the Colonial Records as having been discovered as early as 1684. Mrs. James says that on the 24th of September, 1717, Sir William Keith, governor of Pennsylvania, " wrote to the Board of Trade in London that he had found great plenty of iron ore in Penn- sylvania," and Bishop says that "Sir William Keith had iron works in New Castle county, Delaware, erected pre- vious to 1730, and probably during his administration from 1717 to 1726." This enterprise consisted of a furnace and forge, which were located on Christiana creek, and are said to have had a short life. Iron was, however, made in Bloomaries on the Christiana and its branches after 1730, and there is a tradition that a furnace was in existence at the foot of " iron hill " after this date. In the gable of an old Baptist church near " iron hill " is a cast-iron plate dated 1746, which is said to have been cast at this furnace. Among the bloomaries was one on White Clay creek, in New Castle county, owned by John Hall. In the edition of Oldmixon for 1741 the author says that " between Brandy- wine and Christiana is an iron mill." These references point out with all the exactness that is now possible the character and location and date of erection of the first iron enterprises in the state of Delaware. Bishop says that in Sussex county, at the southern extremity of Delaware, " where bog oi'e in the shape of a very pure hydrate, yield- ing from 55 to 66 per cent, of iron, exists in large beds in the vicinity of Georgetown, and on the branches of the Nanticoke and Indian rivers, the manufacture of iron and castings was carried on before the Revolution to a consider- able extent. The compact hydrated peroxide of some of these beds has, since the early part of this century, been raised in quantities for exportation, and the local production of iron is consequently less than it might have been." Tench Coxe, in his report on The Arts and Mamifaclures of the United States in 1810, mentions five forges in Sussex county, which produced in that year 216 tons of iron, but he makes no reference to a blast furnace in the whole state. Bog ore from near Milton, in Sussex county, was at one time taken to Millville, New Jersey, to be smelted in a furnace at that place which was built in 1815. The shipment of this ore ceased about 1853. About 1820, as we are informed by Judge Caleb S. Layton, of Georgetown, in Sussex county, a blast furnace was established at Millsborough, on the Indian river, about eight miles south of Georgetown, by Colonel William D. Waples and others, In connection with this furnace was a foundry. An interest in the furnace was purchased in 1822 by Hon. Samuel G. Wright, of New Jersey, and in 1830 his son, Colonel Gardiner H. Wright, obtained an interest, and afterwards operated the furnace until 1836, when it went out of blast finally. The foundry continued in operation until 1879. In 1859 Lesley stated that " Millsborough charcoal furnace, owned by Gardiner H. Wright, of Millsborough, Sussex county, Delaware, is the only furnace in the state, and has not made iron for ten years. A cupola furnace is in activity beside it." Francis Vincent, of Wilmington, informs us that the castings for the eastern penitentiary of Pennsylvania, and for Moya- mensing prison, and the iron railing which once surrounded Independence Square, in Philadelphia, were cast at Mills- borough furnace— presumably at the " cupola fiirnace." He also informs us that ten or twelve years before the Revolu- tion an English company, under the leadership of Colonel Joseph Vaughan, built a furnace near Concord, in Sussex county. The company had a stone wharf at the head of Nanticoke river, and shipped its iron direct to England. The iron was named " Old Meadow." " The stone wharf is there yet," says Mr. Vincent. Colonel Vaughan com- manded one of the Delaware regiments during the Revolu- tion. In 1828 and in the two subsequent years Millsborough furnace and foundry produced 450 tons of pig iron and 350 tons of castings. A rolling and slitting mill near Wilmington, in Delaware, existing and in operation in 1787 or 1788, has already been referred to in the chapter relating to New York. This mill then rolled and slit Swedish and Russian iron for the use of a New York cut-nail factory. In 1810 there were three rolling and slitting nails in New Castle county. Lesley stated in 1859 that, the Delaware iron works, located five miles northwest of Wilmington, owned by Alan Wood, of Philadelphia, and built in 1812, " began to manufacture sheet iron thirty years ago in what had been a nail-plate works. At that time only Townsend in New Jersey made sheet iron." Marshall's rolling mill, on the Red Clay creek, two miles west of Newport, was built in 1836. The Wil- mington rolling rnill, near Wilmington, was built in 1846. The Diamond State rolling miil, at Wilmington, was built in 1854. These were the only rolling mills existing in Dela- ware in 1859. Others have since been built. The business of iron shipbuilding has been added to the iron industries of Delaware within the last few years. The iron hill to which reference has been made is situated about twelve miles from Wilmington, and near the Pennsylvania line. Ore taken from this place has been used at Principio furnace, in Cecil county, Maryland, since 1847. This ore has also been used in some of the furnaces of Pennsylvania. Previous to 1847 the mines had been worked but little. Between 1832 and 1847 some ore was mined here and taken to a furnace in New Jersey. Maryland. — In his Report on the Manufacture of Iron, addressed to the governor of Maryland in 1840, Alexander gives 1715 as "the epoch of furnaces in Maryland, Virginia, and Pennsylvania." We have seen that this statement is true of Pennsylvania, and there is no reason to believe that it is not substantially true of Maryland. Scrivener says that in 1718 Maryland and Virginia exported to England three tons and seven cwt. of bar iron, upon which the mother country collected a duty of £6 19«. Id. This indicates that iron was made in both of these colonies before that year. In 1719 the general asembly of Maryland passed an act "auth- orizing 100 acres of land to be laid off to any who would set up furnaces and forges in the province." Other induce- 54 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. ments were offered in 1721 and subsec[uently to those who would engage in the manufacture of iron. The preanlble to the act of the general assembly of 1719 recites that "there are very great conveniences of carrying on iron works within this province, which have not hitherto been embraced for want of proper encouragement to some first undertakers," which clearly implies that iron enterprises had already been undertaken in Maryland but were not in operation. Who these " first undertakers " were will presently appear. As a result of the encouragement given by the general as- sembly official reports show that in 1749 and again in 1756 there were eight furnaces and nine forges in Maryland, and that on the 21st of December, 1761, there were eight fur- naces, making about 2,500 tons of pig iron annually, and ten forges, capable of making about 600 tons of bar iron annually. Daring the colonial period Maryland had no manufacturing industry worthy of the name except that of iron. Tobacco-growing and wheat-growing formed the principal employment of the people. The first iron works in Maryland were erected in the northeastern part of the state, in Cecil county. A forge at North East, at the head of the North East river erected previous to 1716, is supposed to have been the pioneer iron enterprise. That iron works were built at North East pre- vious to 1716 is proved by a deed, dated in that year, in which Robert Dutton conveyed a flour mill near the " bot- tom of the main falls of North East," together with fifty acres of land, to Richard Bennett for £100 in silver money. In this deed "iron works" are mentioned as among the appurtenances which were conveyed by it. They were pro- bably not then active. In 1722 the iron works at North East appear to have been owned by Stephen Onion and Thomas and William Russell. These works embrace only a forge, which was at first probably used only to make iron direct from the ore. At or about the time when the forge at North East was built a furnace was built by the Principio Company at Principio, on Principio creek, which empties into the Chesapeake near the mouth of the Susquehanna, about six miles from North East, in Cecil county. A forge was afterwards erected at Principio. Stephen Onion, Josh- ua Gee, Joseph Farmer, William Russell, and John Rus- ton were the original members of the company. The North East and Principio companies appear to have been united about 1722. Stephen Onion and Thomas Russell were the leading spirits in both companies. Henry Whiteley has published an exceedingly full and valuable history of the Principio Company, from which we compile the following interesting details. The most prominent members of the Principio Company, which existed for about sixty years, were Sir Nicholas Hackett Carew, Bart., of Beddington, Surrey ; Thomas Russell, of Birmingham, and his sons, Thomas and William Russell ; Stephen Onion ; John Eng- land ; Joshua, Samuel, and Osgood Gge ; William Chet- wvnd, Esq., — all of England; and Augustine and Lawrence Washington, of Virginia, father and brother of George Washington. In 1724 Stephen Onion and Thomas Russell left their works in charge of John England, a practical iron- master, and sailed from New Castle for Great Britain, in the same ship with Benjamin Franklin, who says in his autobiography that they were '' masters of an iron work in Maryland " and had engaged " the great cabin." Onion soon returned, and in 1726 was in active superintendence at Principio; but Russell remained in England. Ore for the furnace was at first obtained in the immediate neighbor- hood, but as early as September 4, 1724, it was obtained from Gorsuch's point, below Canton, on the eastern shore of the Patapsco, about opposite to Fort McHenry. In 1727 the Principio Company, through John England, purchased all the iron ore, opened and discovered, or shut and not yet discovered," on Whetestone point, at the extremity of which Fort McHenry now stands, for £300 sterling and £20 current money of Maryland. This was for many years one of its principal sources of ore supply. The company did not confine its operations to Principio and North East. It was early in treaty with Captain Au- gustine Washington for land in Virginia, at Accokeek, on which to erect a furnace. In February, 1725, the furnace was ready for work, and John Barker, the founder at Prin- cipo, was sent there to start it. After Accokeek, Kingsbury fturnace was the company's next venture. It was situated on Herring run, at the head of Back river, in Baltimore county. It was built in 1744 and went into blast in April, 1745, producing at the first bla«t, which lasted till December 18th of the same year, 480 tons of pig iron. The first four blasts embraced the period extending from April, 1, 1745, to December 26, 1751, and produced 3,853 tons, or an aver- age of 75 tons per working month. More than 3,300 tons of the iron were shipped to the company in England. In 1751 Lancashire furnace was purchased from Dr. Charles Carroll, of Annapolis. It was located near Kingsbury, on the west side of a branch of Back river, a few miles north- east of Baltimore. . The deed embraced 8,200 acres of land, and was " signed " on behalf of the company by Lawrence Washington. Lancashire furnace was operated by the company from the time of its purchase until the_ Revolution. It was its last acquisition of property "in America. At the time of its purchase the company outranked all competitors, being the sole proprietor of four furnaces and two forges, viz: Principio furnace, Cecil county, Maryland, built about 1715; Principio forge at the same place ; North East forge, Cecil county, Maryland, built about 1715; Accokeek furnace, Virginia, built in 1725; Kingsbury furnace, Baltimore county, Maryland, built in 1744; Lancashire furnace, Balti- more county, Maryland, purchased in 1751. It owned slaves and live stock in abundance, and its landed estates were of great extent, amounting to nearly thirty thousand acres ex- clusive of the Accokeek lands in Virginia. One-half of the pig iron exported to Great Britain from this country is said by Mr. Whitely to have come from its works. After 1776 the company had no actual control over any of its American property. Thomas Russell, who had been the company's general manager, continued to operate the furnaces and forges, and supplied bar iron and cannon balls in large quantities to the Continental army. In the Lan- cashire furnace ledger is an "account of shott made at Lan- cashire furnace in the year 1776." In 1780 the general as- sembly of Maryland passed an act to seize and confiscate all British property within the state, and this was the end of the Principio Company, after an existence of more than sixty years. All the possessions of the company, with two exceptions, passed under the auctioneer's hammer and into new hands. The works at North East were retained by Thomas Russell, one of the company and a son of the first Thomas Russell, who had cast his fortunes with the patriotic cause. The Accokeek lands are supposed to have fallen to "a certain Mr. Washington," who owned a one-twelfth in- terest in the possessions of the company, and was also a patriot." In 1744 William Black, secretary of the commissioners appointed by Governor Gooch, of Virginia, to unite with those from Pennsylvania and Maryland to treat with the Iroquois, or Six Nations of Indians, in reference to the lands west of the AUeghenies, wrote in his journal, on May 25th, while at North East in Maryland : " I must not for- get that in the forenoone the Com'rs and their company went to the Principio iron works, in order to view the curio- sities of that place. They are under the management of Mr. Baxter, a Virginian, and was at work forming barr- iron when we came there. For my part I was no judge of the workmanship, but I thought everything appeared to be in very good order, and they are allowed to be as compleat works as any on the continent by those who are judges." This visit was made to North East forge, which being own- ed by the Principio Company, formed a part of the " Princi- pio iron works." Iron works have been almost continuous- ly in operation at Principio and North East since their first establishment, or about one hundred and sixty years. At Principio George P. AVhittaker and his associates have had a charcoal furnace in operation since 1837, and at North East, on the very site of the old forge, are the present exten- sive iron works of the McCullough Iron Company. Pig iron from Virginia furnaces was taken to the forge at North East, and perhaps to Principio forge, to be refined into bar iron. About thirty years ago a whole pig o*iron was found near the site of the first Principio furnace, which was plain- ly stamped "Principio, 1727.^' A few years ago two or three pigs of iron, marked " Principio 1751," were discover- ed m the bed of the Patapsco river. All of these relics have been preserved, A furnace at the mouth of Gwynn's falls and a forge at Jones's falls, called Mount Royal, were built THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 55 by the Baltimore Company soon after 1723 and before 1730 Messrs. Carroll, Tasker, and others forming the company. Stephen Onion severed his connection with the Priucipio Company and built a furnace and two forges of his own at the head of Gunpowder river, about a mile from Joppa, then one of the principal towns of Maryland, but now wholly deserted. These works were advertised for sale in 1769, after Stephen Onion's deaih. The exact date of the erection of these extensive works has not been preserved. Bush furnace, in Harford county, and Northampton furnace, in Baltimore county, were built about 1760 — ^the latter by members of the Ridgely family. The proprietors of this furnace owned a forge on the Great Gunpowder river, called Long Cam forge, which was probably older than the ftirnace. Bush furnace, located on Bush creek, was owned about 1767 by John Lee Webster. On the Patapsco, near Elkridge Landing, were Elkridge furnace and forge, owned by Edward Dorsey ; at a locality not now known was York furnace ; in Anne Arundel county were the Patuxent fur- nace and forge, owned by Thomas, Richard, and Edward Snowden. There was once a furnace on Stemmer's run, about seven miles from Baltimore. There was also a fur- nace on Curtis creek, in Patapsco county, built by William Goodwin and Edward Dorsey, which remained in operation until 1851. Nottingham furnace, in Baltimore, was built before the Revolution. In 1762 Robert Evans, Jonathan Morris, and Benjamin Jacobs built Unicorn forge at a place called Nasby, in Queen Ann County. The castings iox the forge were procured at " Bush river furnace," which appears to have been then operated by Isaac Webster. The firm of Evans, Morris & Jacobs was not Icftig in existence In Frederick county were several early iron enterprises, partic- ulars of which have been preserved by Alexander. Old Hampton furnace, on Tom's creek, about two miles west of Emmetsburg, was built between 1760 and 1765 by persons whose names have not survived. Legh furnace was built about the same time by an Englishman named Legh Master, at the head of Little Pipe creek, two or three miles south- west of Westminster. Both of these furnaces were soon abandoned. Catoctin furnace, situated about twelve miles northwest of Frederick, was built in 1774 by James John- son & Co. It was rebuilt in 1787 by the same company, " about three-fourths of a mile further up Little Hunting creek, and nearer the ore banks." It was again rebuilt about 1831. We may add that in 1856 a new furnace was built at the same place, called Catoctin No. 2, and in 1874 another furnace was added, called Catoctin No. 3. All of the Catoctin furnaces were in operation in 1880, and all used charcoal, although No. 3 usually uses anthracite and coke. The yield of the first Catoctin furnace was from twelve to eighteen tons of pig iron weekly. Shortly after the erection of the first Catoctin furnace the same owners erected on Bush creek, about two miles above its mouth, the Bush creek forge. The forge was in operation until 1810, when it was abandoned. About the time when Catoctin furnace and Bush creek forge were built, the Johnsons built a rolling and slitting mill at a spot known in 1840 as Reel's mill. About 1787 they built Johnson fiirnace on a small stream one mile above the mouth of the Monocacy. In 1793 the various iron properties belonging to the Johnsons were di- vided, and Johnson furnace fell to Roger Johnson, who soon afterwards built a forge in connection with the furnace. It was situated on Big Bennett's creek, about five miles above its junction with the Monocacy, and was called Bloomsburg forge. Its weekly product was between four and five tons of finished iron. The furnace and forge were abandoned soon after 1800. Fielderea furnace, on the Harper's Ferry road, three miles south of Frederick, was built by Fielder Gantt shortly after the Revolution, but after making the one blast it was abandoned. This event occurred before 1791. In Washington county there were many iron enterprises at an early day, most of which have been noted by Alexan- der. In 1770 James Johnson superintended the erection of Green Spring ftirnace, on Green Spring run, one mile above its entrance into the Potomac. It was owned by a Mr. Jacques and Governor Johnson. The neighboring iron ore not being of good quality, the furnace was abandoned in a few years. James Johnson also built Licking creek forge, near the mouth of Licking creek, for the sdme firm. It was at first supplied with pig iron from Green Spring furnace, but was afterwards sold to " Mr. Chambers, of Chambers- burg, who carried it on for several years with pig supplied from his furnace in Pennsylvania." Mount Etna fiirnace, on a branch of Antietam creek, five or six miles north of Hagerstown, was built by Samuel and Daniel Hughes about 1770, and was in successfiil operation for many years. During the Revolution it cast the first Maryland cannon. About a mile and a half from the furnace, and about four miles from Hagerstown, the same owners built Antietam forge, which was in operation after the furnace was aban- doned. Bishop states that General Thomas Johnson and his brother were the owners in May, 1777, of a furnace at Frederick, but it was not then in blast. Between 1775 and 1780 Henderson & Ross built a furnace at the mouth of Antietam creek. A forge was built at the same place about the same time. There were at least three forges on Antie- tam creek during the last century. In 1845 a new furnace was built on the site of the original Antietam furnace, and it is still in operation. A small rolling mill, with a nail factory attached, was built at the same place about 1831 and abandoned about 1853. Bishop says that a slitting mill was established at or near Baltimore in 1778 by William Whetcroft, and that about the same time two nail factories were established in the city — one by George Matthews and the other by Richardson Stewart. At Elkridge Landing Dr. Howard owned a tilting forge in 1783. On Deer creek, in Harford county, a forge and slitting mill were built dur- ing the last century. During the Revolution there were 17 or 18 forges in operation in Maryland, .in addition to fur- naces and other iron enterprises. After the Revolution the iron manufacture of Maryland experienced a healthy development, which has continued without serious interruption to the present time. One of the first successful rolling mills in the state was the cele- brated Avalon iron works, on the Baltimore and Ohio rail- road, half a mile above the Relay House, built about 1796 and in use down to about 1860. It first made nails exclu- sively, but afterwards it also rolled nails. , A rolling mill was built on the Big Elk river, five miles north of Elkton, in 1810, on the site of copper works which had existed be- fore the Revolution. It was active until about 1860, making sheet iron chiefly. Octorara forge and rolling mill, on Octorara creek, four miles above ite mouth and eight miles north of Port Deposit, were built about 1810. These works are still active, and, together with two other Maryland roll- ing mills of modern origin, are owned by the McCuUough Iron Company. The once numerous forges of Maryland have gradually given place to rolling mills. In 1840 several forges were in operation ; in 1856 two forges were active, and in 1880 there was only one forge active — ^the one at North East. The development of the iron ores belonging to the coal measures of the extreme western part of Maryland appears to have been undertaken about fifty years ago. Near the village of Friendsville, on Bear creek,-a branch of the You- ghiogheny river, there were erected, in 1828 and 1829, the Yohogany iron works, consisting of a furnace and two forges, to use charcoal. These works were abandoned about 1834. In 1837 a furnace 50 feet high and 14J feet wide at the boshes was built at Lonaconing, eight miles southwest of Frostburg, by the George's Creek Coal and Iron Company, to use coke. In June, 1839, it was making about 70 tons per week of good foundry iron, with coke as fuel. Overman claims that this was the first successful coke ftirnace in the United States. Two large blast furnaces were built in 1840 by the Mount Savage Iron Company, nine miles northwest of Cumberland, also to use coke. This enterprise was also successful. In 1845 the same company built an additional furnace, but it was never lined. The Mount Savage rolling mill was built in 1843, especially to roll iron rails, and in 1844 it rolled the first rails used in this country. These rails were of the inverted U pattern, and weighed 42 pounds to the yard. Alleghany county, Maryland, is thus entitled to two of the highest honors in connection with the Ameri- can iron trade. It built the first successfiil coke furnace and rolled the first heavy iron rails. The furnaces and rolling mill of the Mount Savage Iron Company have long been in- active and abandoned. In 1846 a furnace called Lena was built at Cumberland, which at first used charcoal and after- 56 THE MINES MINERS AND MINING INTERESTS OF THE UNITED STATES. wards used coke. It was not long in operation. Alexander mentions a furnace on the Eastern Shore of Maryland, built in 1830 by Mark Richards, about five miles from Snow Hill, to use bog ore yielding only 28 per cent, of iron. Its annual production about 1834 was 700 tons. In 1840 the furnace was owned by T. A. Spence. It was called Naseongo, and it was the only furnace in the state that used bog ore exclu- sively or in large quantities. A bloomary which used bog ore once stood near Federalsburg, but it was abandoned long ago. The prominence of Maryland as an iron-producing state was relatively much greater in 1870 than in 1880. In the former year it was fifth in rank, and in the latter year it was twelfth. A furnace was built at Georgetown, in the District of Columbia, in 1849, and finally went out of blast about 1855. A second stack was built at the same place, but was never lined and consequently never put in blast. Be- fore 1812 the United States Government built an anchor forge at the navy-yard at Washington, which was enlarged about 1830, and afterwards used to produce anchors, shafts, chains, etc. The District of Columbia never had any other iron enterprises until 1878, when the Government established a small rolling mill at the navy-yard. The forge is still in operation, as is also the rolling mill. —CompiUdfTom Jamei M. Swank's Report on Iron and Sl^el, Tenth Census of the U. S. EARLY IRON INDUSTRIES IN VIRGINIA, THE CAROLINAS AND GEORGIA. AFTER the failure to manufacture iron on Falling creek in 1622, no successful effort was made to re- vive the iron industry in Virginia until after the beginning of the succeeding century— a delay of al- most a hundred years. To Colonel Alexander Spotswood, who was governor of Virginia from 1710 to 1723, the honor of having established the iron industry of the colony on a firm and permanent basis is fairly due, although the exact date of the commencement of the various iron enterprises is lost. We are indebted to the researches of R. A. Brock, Esq., of Richmond, for the following information concern- ing the inception of Governor Spotswood's schemes to eflfect a revival of the iron industry in Virginia. In the collec- tions of the Virginia Historical Society are two MS. volumes of the letters of Governor Spottswood to the lords' com- missioners, the council of trade at London, covering the period from 1710 to 1721. On October 24, 1710, the Gover- nor writes: "There is a project to be handed to the next assembly for improvement of the iron mines, lately dis- covered in this country, the ores of which upon tryall have Ijeen found to be extraordinary rich and good. It is pro- posed that the work be carried on at publick charge." This scheme appears not to have been acted upon by the assembly. On December 15, 1710, the Governor writes: " I humbly propose to your lordships' consideration, whether it might not turn to good account if her majesty would be pleased to take that work [the iron] into her own hands, sending over workmen and materials for carrying it on." He states that the "iron mines lie at the falls of James river." On January 27, 1714, he asks that the German Protestants settled at the head of the Rappahannock river, who came over with Baron de Graffenreidt " in hopes to find out mines," be exempted from the payment of levies for the support of the government. In the latter part of 1716 lengthy charges for malfeasance in office were anony' mou&ly preferred against Governor Spotswood to the coun cil of trade, the counts of which are numerous. In one of them Governor Spotswood is charged, under- pretence of guarding the frontiers, with building, at the cost of the government, two forts, one at the head of James river and another at the head of Rappahannock river, only to support his two private interests, at least one of which, that on the Rappahannock, related to the manufacture of iron. Another account charges the maintenam-e at jiublic cost, at these forts, of "rangers," for three years, ending in December,' 1716. The beginning of this period would be near that of the German settlement the members of which were the operatives of Governor Spotswood. It may be assumed that some of his iron enterprises were in operation certainly in 1716, and, most likely, two years earlier. In 1727 the general assembly of Virginia passed an act for encouraging adventurers in iron works," which begins as follows: "Whereas, divers j)ersons have of late' expended great sums of money in ere(iting furnaces and other works for the making of iron in several parts of the country, . . . and for as much as it is absolutely necessary for roads to be laid out and cleaned from all such iron works to convenient landings," etc. In A Progress of the Mines, by Colonel William Byrd, of Westover, Virginia, written in September, 1732, is given a full account of the iron enterprises of Vir- ginia at that time. They embraced three blast furnaces and one air furnace, but no forge. One of the blast furnaces was at Fredericksville, a village which has disappeared from the maps, but which was located about twenty-five miles south of Fredericksburg, in Caroline county or Spottsylvania county. Mr. Chiswell, the manager, told Colonel Byrd that the pig iron produced at the furnace was carted twenty-four miles over an uneven road to the Rappahannock river, about a mile below Fredericksburg. This furnace was built of brick, but it had been idle " ever since May, for want of corn to support the cattle." Colonel Byrd says : " The fire in the furnace is blown by two mighty pair of bellows, that cost £100 each, and these bellows are moved by a great wheel of 26 foot diameter." The owners of the furnace had invested about £12,000 in land, negroes, cattle, etc., and had made 1,200 tons- of iron. " When the furnace blows it runs about 20 tons a week.'-' Colonel Byrd says the company was formed as follows : " Mr. Fitz Williams took up the mine tract, and had the address to draw in the Governor, [Spots- wood,] Captain Pearse, Dr. Nicholas, and Mr. Chiswell to be jointly concerned with him, by which contrivance he first got a good price for the land, and then, when he had been very little out of pocket, sold his share to Mr. Nelson for £500, and of these gentlemen the company at present con- sists. And Mr. Chiswell is the only person amongst them that knows anything of the matter." One of the mines at- tached to the furnace was fifteen or twenty feet deep, and the ore was dislodged by blasting, after which it was carried away " in baskets up to the heap." It was calcined before being used, a layer of charcoal and ore alternating. The limestone used at the furnace was brought from Bristol as ballast, and carted from the Rappahannock to the furnace by the ox teams which brought down the iron. Colonel Byrd recommended the substitution of oyster shells for lime- stone, but without eflfect. The next furnace visited by Colonel Byrd was directly controlled by Colonel Spotswood, and was situated in Spott- sylvania county, about twenty miles southwest of Fredericks- burg, and about thirteen miles from Germania. This last place was situated in Orange county, on the south side of the Rapidan, and about fourteen miles distant from its junction with the Rappahannock. It had been settled by Germans ^nd afterwards abandoned for another location on "land of their own, ten miles higher, in the Fork of Rap- pahannock." The furnace, according to Colonel Spotswood, was the first in Virginia. " It was built of rough stone, having been the first of that kind erected in the country." The iron made at this furnace was carted fifteen miles to Mas- saponux, on the Rappahannock, five miles above Fredericks- burg, where Colonel Spotswood had recently erected an air furnace, which he "had now brought to perfection, and should be thereby able to furnish the whole country with all sorts of cast iron, as cheap and as good as ever came from England." The blast furnace " had not blown for several moons, the Colonel having taken off great part of his people to carry on his air furnace at Massaponux." " Here the wheel that carried the bellows was no more than 20 feet diameter." The ore at this furnace was also blasted with gunpowder. " All the land hereabouts seems paved with iron ore, so that there seems to be enough to feed a iiirnace for many ages." Colonel Byrd next mentions " England's iron mines, called so from the chief mqnager of them, tho' the land belongs to Mr. Washington." These mines he states were on the north side of the Rappahannock river, " not far from a spring of strong steel water," which was in King George county, twelve miles distant from Fredericks- THE MIXES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 57 burg. Two miles distant from the mines was a furnace. " Mr. Washington raises the ore, and carts it thither for 20 shillings the ton of iron that it yields. The furnace is built on a run, which discharges its waters into Potomeck. And when the iron is cast they cart it about six miles to a land- ing on that river. Besides Mr. Washington and Mr. Eng- land there are several other persons in England concerned in these works. Matters are very well managed there, and no expense is spared to make them profitable, which is not the case in the works I have already mentioned." This was Accokeek furnace, already referred to in the Maryland chap- ter as forming one of the possessions of the Principio Com- pany. It was situated in Stafford county. The " 'Mi: Wash- ington " referred to was Augustine Washington, the father of George Washington. Colonel Byrd did not visit Ac- cokeek furnace. He visited Colonel Spotswood's air furnace at Massaponux, which he fully describes. It was a very ambitious and creditable enterprise, and appears to have been successfully managed. Colonel Spotswood used it " to melt his sow iron, in order to cast it into sundry utensils, such as backs for chimneys, andirons, fenders, plates for hearths, pots, mortars, rollers for gardeners, skillets, boxes for cart wheels, and maily other things. And, being cast from the sow iron, are much better than those which come from England, which are cast immediately from the ore for the most part." '' Here are two of these air furnaces in one room, that so in case one want repair the other may work, they being exactly of the same structure." Colonel Spots- wood informed Colonel Byrd that Robert Gary, of England, was a silent partner of his in all his iron enterprises. In the valley of Virginia many furnaces and forges were built prior to the Revolution, and others were built before the close of the century. Zane's furnace and forge, on Cedar creek, in Frederick county, are said to have been the first iron works in the valley. Pine forge, in Shenan- doah county, three and a half miles north of New Market, was built in 1725, according to Lesley. Isabella furnace, on Hawksbill creek, near Luray, in Page county, was built in 1760. In Augusta county, fifteen miles north of Staunton, a forge was built in 1757 on Mossy creek, and on the same stream a furnace was built in 1760. Union forge, near Waynesborough, in Augusta county, was built about 1800. In Rockbridge county were two forges, built about 1800 — Gib- raltar forge, on North river, nine miles north of Lexington, and Buffalo forge, on Buffalo creek, the same distance south of Lexington. Moore's furnace, on Steele's creek, in this county, and a furnace on Smith's creek, in Rockingham county, were built before 1800. A furnace was built in Loudon county before 1800, con- cerning which Bishop states Mr. Clapham, its owner, " cut a canal through the end of Cotocktin mountain, 500 feet through solid rock and 60 feet beneath the surface, to obtain water for his furnace and mill." Iron works were erected in Craig, Grayson, Wythe, Washington, Carroll and other southwestern counties about the close of the last century. A forge on Chestnut creek, in Carroll county, was built about 1790, and another on Little Reed Island dreek was built about the same time. Bishop says that an excellent air furnace was built at Westham, six miles above Rich- mond, on the north side of the river, during the Revolution ; there was also a cannon foundry here at the same period. Benedict Arnold destroyed the works at Westham in 1781. A rolling and slitting mill was afterwards built at Westham, which was probably the first in the state. The Government armory at Harper's Ferry was established in 1798. At Lynchburg and in its vicinity, in the James River valley, several furnaces and forges were built in the last century. No state in the Union gave more attention to domestic manufactures after the close of the Revolution than Vir- ginia. Richmond, Lynchburg, Staunton, Winchester, and some other places became noted for the extent and variety of their manufactures. Household manufactures were also everywhere cultivated. The manufacture of nails was one of these household industries. Thomas Jefferson required about a dozen of the younger slaves owned by him to make nails, and it is said that "they made about a ton of nails a month at a considerable profit." Lesley enumerates no less than 88 charcoal furnaces and 59 forges and bloomaries as having been built in Virginia prior to 1856 ; also 12 rolling mills. Several of these various enterprises were within the limits of the present state of West Virginia. The furnaces were located in 31 counties and the forges in 26 counties. The first rolling mill of any kind west of the Allegheny mountains of which we can obtain exact information was located in West Virginia, and is described in Cramer's Pittsburg Almanac for 1813, issued in 1812, as follows : " Jackson & Updegraff, on Cheat river, have in operation a furnace, forge, rolling and slitting mill, and nail factory — . nails handsome, iron tough." Like all the rolling and slit- ting mills of that day, the Cheat river mill did not puddle iron nor roll bar iron, but rolled only sheet iron and nail plates. Hon. James Veech informed us in his lifetime that its location was on the road from Uniontown to Morgantown, about three miles south of the Pennsylvania state line, and eight miles north of Morgantown. In the old days before the civil war Wheeling was the center of the rolling mill industry of Virginia, having seven of the twelve rolling mills in the state. Of the remaining five mills, four were in Richmond and one was on Reed creek, in Wythe county, twelve miles east of Wytheville. Since the war two rolling mills have been established at Lynchburg, and new mills have been built at Wheeling. A large number of the fur- naces and forges of Virginia were abandoned before 1850. In 1856 there were 39 charcoal furnaces and 43 forges enumerated by Lesley as being then in operation or prepared to make iron. Since 1856 many of the charcoal furnaces and most of the forges which were then in existence have been abandoned. Insufficient transportation facilities, coupled with the failure of ore in certain localities, have had much to do with the abandonment of many charcoal fur- naces in Virginia, while the disappearance of the forges is attributable to other well-known causes. Of late years, how- ever the extension of railroads and the discovery of new and valuable ore deposits have given a fresh impetus to the manufacture of pig iron in Virginia and West Virginia, much of which is made with coke. West Virginia supplying an excellent quality of this fuel. The future of the iron industry of these two states is to-day very promising. The young state, however, in both 1870 and 1880 took higher rank among iron-producing states than the old state. It ranked tenth in 1870 and seventh in 1880 ; whereas Virginia ranked thirteenth in 1870 and sixteenth in 1880. North Carolina. — Scrivenor says that in 1728-'29 there were imported into England from "Carolina" 1 ton and 1 cwt. of pig iron, and that in 1734 there were imported 2 qrs. and 12 lbs. of of bar iron. Shipments of pig iron and bar iron from "Carolina" were made in subsequent years down to the Revolution. It is a curious fact that hose made in Virginia and Carolina were sold in New York several years before the Revolution, Bishop says that several iron works were in operation in North Carolina before the Revolution, some of which were put out of blast by that event. They were situated on branches of the Cape Fear, Yadkin, and Dan rivers. When the shadow of the approaching conflict with the mother country reached North Carolina, her patriotic citizens, first in convention at New Berne and afterwards in the provincial legislature, encouraged, by the offer of liberal premiums, the manufacture of crude and finished iron and steel, as well as other manufactured products. " John Wilcox was the proprietor of a furnace and iron works on Deep run in the beginning of the war. There were also iron works in Guilford county, probably on the same stream. In April, 1776, the provincial congress sent com- missioners to treat with Mr. Wilcox for the use of his fur- nace and works for two years, or to purchase and repair those in Guilford, for casting ordnance, shot, etc., and em- powered them to draw on the treasury for £5,000 for that purpose." Buffalo Creek furnace and forge were also built before the war on Buffalo creek, in Cleveland county, not far from King's mountain, on the southern border of the state. Prior to 1800 there were in operation in Lincoln county four forges, two bloomaries, and two ftirnaces. One of the furnaces, Vesuvius, on Anderson's creek, built in 1780, was in operation down to 1873. Of other iron enter- prises established in North Carolina in the last century we condense from Lesley and Bishop the following informa- tion : Union bloomary forge, on Snow creek, in Stokes county, six miles northeast of Danbury, was built in 1780, Iron works were built on Iron creek, also in the same county, and were conducted with spirit about 1790. Key- 58 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. ser's bloomary forge, on the headwaters of Town fork, in the same county, ten miles southwest of Danbury, was built in 1796. Hill's bloomary forge, on Tom's creek, in Surry county, nineteen miles west of Danbury, was built in 1791. In the same county, near the Yadkin, iron works were erect- ed a few years after the Revolution, probably by Moravians from Pennsylvania, who had settled in the county as early as 1753. In Wilkes county a forge was built about the same time. A furnace and forge were erected on Trouble- some creek, in Rockingham county, at an early day. In Burke county, at the foot of the Blue Ridge, two bloomaries and two forges were erected before the close of the last century. After 1800 the iron industry of North Carolina was still further developed. This development was, however, mainly confined to the manufacture of iron in bloomaries, the magnetic and hematite ores of the state being well adapted to this primitive mode of treatment. In 1810, according to Tench Coxe, there were six bloomaries, two rolling and slit- ting mills, and two naileries in Lincoln county; one bloom- ary in Iredell county ; six bloomaries and one trip-hammer in Burke county; and five bloomaries in Surry county — eighteen bloomaries in all. In 1856 Lesley enumerated about forty bloomaries and a few forges, most of which were then in operation. The trompe or waterblast, was in general use. He also described six furnaces: Vesuvius, already re- ferred to ; Madison, on Leiper's creek, in Lincoln county, built in 1810 ; Rehoboth, on the same creek and in the same county, built in 1810 ; Columbia, seven miles west of High Shoals, in Gaston county, then in ruins ; Tom's Creek, near Hill's forge, on Tom's creek, destroyed by a flood in 1850 ; Buffalo creek, already referred to, and then in ruins. Ve- suvius, Madison, and Rehoboth were blown with wooden " tubs." There was also active at this date a small rolling mill on Crowder's creek, in Gaston county, a mile and a quarter north of King's mountain, owned by Benjamin F. Briggs, of Yorkville, South Carolina, and built in 1853. At the same time another small rolling mill and forge, known as High Shoals iron works, and situated in Gaston county, were in ruins. At least two furnaces were built in North Carolina during the civil war, one in Chatham and one in Lincoln county, and two were built in Chatham county after the war, but of these four furnaces, and Vesuvius, Madison, and Rehoboth, all of which are still standing, as may pos- sibly be one or two other furnaces, not one has made a pound of iron since 187/. Of the long list of bloomaries and forges which the state could once boast, less than a dozen are now active, and there is not to-day a rolling mill or steel works in the state. South Carolina.— If the iron industry of North Caro- lina has declined in late years, that of South Carolina has suffered a worse fate ; it has Ijeen an extinct industry for many years. Yet this state made some iron as early as the Revolutionary period, and subsequently it made iron in con- siderable quantities. In the northwestern part of South Carolina, including the counties of Union, Spartanburg, and York, are deposits of magnetic ores, and here, according to Dr. Ramsay, quoted by Bishop, the first iron works in the state were erected by Mr. Buffington in 1773, but they were destroyed by the Tories during the Revolutionary war. At the beginning of the Revolution South Carolina fol- lowed the example of many other colonies by offering liberal premiums to those who would establish iron works, but we do not learn that the manufacture of iron was thereby in- creased. Mr. Buffington's experience probably deterred others from embarking in the business. Several furnaces and forges were erected in this state a few years after the peace, the principal of which were the Era and Etna fur- naces and forges in York county. The Era was built in 1787 and the Etna in 1788. These enterprises were situated on a creek flowing into the Catawba river, and about two miles west of it. In 1795 the nearest landing to these works was at Camden, seventy miles below. They were on the road leading from Charlotte, in North Carolina, to York- ville. Iron ore was abundant in the neighborhood, and was easily smelted after having been roasted. " It was obtained, massive, in such quantity above the surface that it was thought there would be no occasion to resort to shafts or levels for half a century.'' William Hill was one of the principal owners of the works. He is said to have devised "a new blowing apparatus," by the aid of which he con- trived to blow " all the fires, both of the forges and furnaces, so as to render unnecessary the use of wheels, cylinders, or any other kind of bellows." This apparatus was undoubt- edly the trompe, or water-blast, but Mr. Hill did not invent it, nor was he the first in this country to use it. The state- ment, which Bishop quotes from some unknown authority, is, however, valuable, as it contains one of very few referen- ces to the use of the trompe in blowing a blast furnace in this country that have come under our notice. Bishop says that other iron works soon followed those of Mr. Hill, and that "they were erected in different places, including sev- eral in the mountain district of Washington, where iron, the only article made for sale to any extent, was manufac- tured, at the beginning of this century, as cheap and good as the imported." In 1810 Tencli Coxe enumerates two bloomaries in Spartanburg county, four in Pendleton county, two in Greenville county, and one in York county— nine in all. He also mentions one small nailery and one small steel furnace in the state. He makes no reference to blast fur- naces. Scrivenor mentions the following iron enterprises in South Carolina as existing apparently atfout 1815 . " On Allison's creek, in York district, there are a forge, a furnace, a rolling mill for making sheet iron, and a nail manufactory. On Middle Tiger river are iron works on a small scale ; also on the Enoree river and Rudy river, on the north fork of Saluda river, on George's creek, and on Twenty-six-mile creek. In 1802 an air-furnace was erected on a neck of land between Cooper and Ashley rivers, where good castings are made." (York district is the same as York county, the subdivisions of South Carolina having been known as districts down to 1868.) In 1856 South Carolina had eight furnaces — one in York, one in Union, and six in Spartanburg county. They are described by Lesley. Four of these furnaces were then in operation, producing in the year named 1,506 tons of charcoal iron, but three others had been " out of repair for twenty years," and the remaining furnace had been aban- doned. In 1856 there were also three small rolling mills in the state — one on Pacolet river, in Spartanburg county ; one on Broad river, in Union county ; and one on the same river, in York county. At the first two of these mills dry wood was used in the puddling and heating furnaces. In 1856 the three mills made 1,210 tons of bar iron and nails. In the same year there were also in South Carolina two bloomaries — one connected with the rolling mill in Union county, and the other connected with the rolling mill in York county. Their joint product was 640 tons of blooms. But South Carolina no longer makes iron. Every iron-producing estab- lishment in the state is to-day silent, and has been silent for many years, and all are in a more or less dilapidated condi- tion. South Carolina furnishes the only instance in the history of the country of a state having wholly abandoned the manufacture of iron. Georgia. — Georgia is the last of the original thirteen colonies whose iron history remains to be noticed. Unlike its sister colonies, however, Georgia has no colonial iron history. It was the last of the thirteen to be settled, and it was not until within a few years of the commencemeat of the Revolutionary struggle that the few settlements on the coast began to experience even moderate prosperity. After the close of the Revolution the settlement of the interior was for many years retarded by difficulties with the Indians, and it was not until 1838 that the Cherokees were induced to surrender their claims to a portion of ihc territory of the state. It will be scon that, undrr the circumstances which have been mentioned, the manufacture of iron in Georgia was destined to be the result entirely of comparatively modern enterprise. In 1810 there was a bloomary in Warren county, a forge in Elbert county, and a nailery in Chatham county. These enterprises we're on or near the Atlantic coast, and were doubtless among the first of their kind in the state, if they were not, indeed, the very first. Sequee bloom- ary forge, three miles south of Clarksville, in Habersham county, was built about 1830, and abandoned about 1835. Hodge's forge, in the same county, was probably built at an earlier date. Lesley says of.it : " Situation unknown ; his- tory unknown; abandoned very long ago." The coast sections of Georgia did not possess ample resources for the manufacture of iron. No iron industry exists there to-day. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 59 Old bloomary forges in Cass county, now Bartow county, were built as follows: Etowah, No. 1, in 1838; Etowah, No. 2, in 1841 ; Allatoona, about 1846. Ivy Log bloomary, in Union county, was built about 1839. Aliculsie bloomary, in Murray county, was built about 1843. A bloomarj' was built on Armuchy creek, in Walker county, about 1848. Lookout bloomary, in Dade county, was built at an earlier day. All of these enterprises were abandoned before 1856, in which year, however, several other bloomaries of more recent origin were in operation. In 1880 only two blooma- rios in the state were reported to be in use. One forge, at Allatoona, made blooms from scrap iron in that year. The first furnace in Georgia of which we have any account was Sequee furnace, built prior to 1832, near Clarksville, in Ha- bersham county, and abandoned in 1837. Etowah furnace, on Stamp creek, in Cass county, now Bartow county, was built in 1837, abandoned in 1844, and torn down in 1850. A new furnace, built by its side in 1844, is now in ruins. Allatoona furnace, in Cass county, built in 1844; Union fur- nace, in the same county, built in 1852; Lewis furnace, in the same county, built about 1847 ; and Cartersville furnace, in the same county, built in 1852, have been abandoned. Clear Creek furnace, in Walker county, built about 1852, and rebuilt in 1857, has also been abandoned. All of these were charcoal furnaces. Of the furnaces existing in Geor- gia in 1880 Bartow county contained five charcoal furnaces and two coke furnaces — seven in all. Of these, the two Bear Mountain charcoal furnaces, built in 1842, were the oldest. Four other furnaces in the state were situated in Polk, Floyd, and Dade counties — two in Polk and one in Floyd using charcoal, and one in Dade using coke. Rising Fawn furnace, in Dade county, is 63 feet high by 16 feet wide at the boshes, and was the first furnace in the United States to use the Whitwell hot-blast stove, blowing in for the first time on June 18th, 1875. Georgia had two rolling mills in 1859 — Etowah, in Cass county, built about 1849, and Gate City, at Atlanta, built in 1858. It is a curious fact that the state had just two rolling mills twenty-one years later, in 1880,— Atlanta, built in 1865, and Rome, built in 1869. The latter has been idle for several years. Lesley, in 1859, thus describes the Etowah rolling mill and its blast furnace and other connections, situated on the Etowah river: "This property has been building up and developing for twelve years. On it there has been expended $250,000. It contains a rolling mill, nail and spike factory, and all necessary ap- paratus; a blast furnace and foundry, with full equipment; a wheat mill (150 to 250 bushels per day), warehouse, coo- per-house, hotel, and operative houses, two corn grist mills, two saw mills, and a coal mine ; all using not one-tenth of the water-power on the premises. River 600 feet wide. Iron ore and wood are abundant. It is on the metamorphic rocks of the gold and copper belt, both minerals being found on it," etc. Notwithstanding the decadence of its bloomaries, and the slow progress it has made in building up a rolling- mill industry, Georgia possesses to-day a very promising blast-furnace industry, which has been almost wholly reha- bilitated during the past decade. —Cowpihdfrom James M. SwaiiWa Report on Iron and S'.eel, Tenth Cmau oftlie V. S. THE EARLY DAYS OF THE IRON INDUSTRY IN KENTUCKY AND TENNESSEE. THE first iron enterprise in Kentucky is said byLesley to have been Slate furnace, erected by government troops in 1791 on Slatecreek, a branch of Licking riv- er, in Bath county, then Bourbon. It was successfully operated until 1838. This is the ouly furnace in Kentucky whose history can be definitely traced back to the last cen- tury. It will be remembered that Jefferson, in the extract from his Notes on the State of Virginia, already quoted, says that there were iron mines " on Kentucky, between the Cum- berland and Barren rivers," and also " between Cumberland and Tanissee." It is probable that about the year 1800 there were a few bloomaries in eastern Kentucky, to supply local wants for bar iron, and possibly Slate furnace was not the only furnace that supplied castings to the Kentucky pioneers in the last century. The original of the following memo- randum was handed to the editor of the Portsmouth (Ohio) Tribune in 1880 by Mr. L. C. Robinson. It refers to a furnace in Kentucky called Bourbon, but which was pro- bably the same as Slate furnace. Kenttjcky, ss : Memorandum of an Agreement made and Con- cluded upon this day between John Cockey Owings & Co., in Iron Works at the Bourbon Furnace of the one part, and Robert WiUiams (potter) of the other part. Witnesseth that the aforesaid Company doth this day agree to give the said WiUiams five pounds p month for three months work and to find him provisions during the time he shall work until the three months are expired, and said Company doth farther agree. La case the furnace is not ready to blow before or at the expiration of the three months, if the water will admit, or as soon as the water wUl admit after that time, to give him p month as much as he can make in a month at the potting Busi- ness for such time as said Furnace may not be Ready to putin Blaut —as witness our hands this second day of June, 1793. Test : Jno. Mockbee. JN. COCKEY OWINGS, WALTER BEALL, CHRIST GREENUP. Lesley says that Slate furnace " was run by Colonel Owing," and that it went out of blast in 1838. The name of Bourbon furnace indicates its location in Bourbon county, and it is hardly probable that there were two furnaces in this county as early as 1793. The term " potter " was ap- plied to the molder, who cast pots, kettles, etc., from the melted iron which was taken direct from the furnace and poured into molds. Colonel Christopher Greenup afterwards became the third governor of Kentucky, serving from 1 804 to 1808, and it was in his honor that Greenup county was so named. For a number of years after 1800 the iron industry of Kentucky made but slow progress. Tench Coxe in 1810 nientions only four furnaces and three forges. One fur- nace was in Estill, one in Wayne, and two were in Mont- gomery county. One of the forges was in Estill, and one in Wayne, and one in Montgomery county. About 1815 there were four nail factories at Lexington, making 70 tons of nails yearly. About 1815 Richard Deering, a farmer of Greenup county, smelted in a cupola the first iron ore used in the Hanging Rock district of Kentucky. His experiment with the cupola proving to be successfiil, he took into partnership David and John Trimble, and these three persons erected as early as 1817 the first blast flirnace in the district. It was called Argillite, and was located in Greenup county, about six miles southwest of Greenups- burg, upon the left bank of Little Sandy River. The stack, which was 25 feet high and 6 feet wide at the boshes, was cut in a cliff of black slate — hence the name, Argillite. Lesley says: "It was not a structure, but an excavation in the solid slate rock of the cliff, the archway below being excavated to meet it.'' This furnace was operated until 1837, when it was abandoned, but its product was always small. The next furnace in this district appears to have been Pactolus, built by Ward & McMurtry in 1824, in Carter county, on the Little Sandy river, above Argillite furnace. It also was abandoned about 1837. A forge was connected with this furnace. The next iron enterprise in the district is said to have been Steam furnace, in Greenup county, situated about three miles from the Ohio river and five miles from Greenupsburg. It was built in 1824 by Leven Shreeves & Brother, and was operated with steam. It was abandoned after 1860. Enterprise furnace, on Tygart's creek, in Greenup county, was built in 1826, but Richard Deering is said to have erected a forge of the same name, on the same creek, in 1824. Bellefonte furnace on Hood's creek, two and a half miles southwest of Ashland, in Boyd county, was built in 1826 by A. Paull, George Poague, and others, and was the first furnace in this county. It is still in opera- tion. Between 1817 and 1834 at least thirteen furnaces were built in Greenup, Carter, and Boyd counties. One of the earliest of these was Camp Branch, or Farewell, situated on Little Sandy river, fourteen miles from Greenupsburg, near the Carter county line, built by David and John 60 THE MI]N'ES, MINERS AND MINING INTEEESTS OF THE UNITED STATES. Trimble. Subsequent to 1834 about fifteen other charcoal furnaces were built in these three counties and in Lawrence county. Many of the charcoal fiirnaces of this district have been abandoned. A few excellent bituminous coal and coke furnaces have, however, been erected in late years. Notwithstanding these additions to its furnace capacity, this district is not now so prominent in the manufacture of iron as it has been. About 1830 there were a dozen forges in Greenup, Estill, Edmonson, and Crittenden counties, all of which, with one exception, were abandoned before 1840. Two forges were built below Eddyville, in Lyon county, about 1850. All of the forges mentioned refined pig iron into blooms, many of which found a market at Pittsburg, Cincinnati, and Ken- tucky rolling mills. There is now only one forge in the state — ^Red River, in Estill county, and it is not active. The bloomaries that once existed in Kentucky were abandoned early in this century. In addition to the iron enterprises in the Hanging Rock region of Kentucky, furnaces were built before 1860 in several of the middle and western counties of the state — in Bath, Russell, Bullitt, Nelson, Muhlenburg, Lyon, Crittenden, Trigg, Calloway, and Livingston counties. In this period eight rolling mills were also built in various sections. The period from about 1825 to 1860 witnessed great activity in the development of the iron industry of Kentucky. Since the close of the civil war this activity has been maintained, but it cannot be said that the state has of late devoted that attention to the manufacture of iron which its position and resources would seem to invite. It was seventh in the list of iron-producing states in 1870, and eleventh in 1880. Of twenty-two furnaces in the state in 1880 eighteen used charcoal, the others used bituminous coal. In the same year there were eight rolling mills — two at Covington, two at Newport, two at Louisville, one at Ashland, and one in Lyon county; there were also two steel works in the slate. The first rolling mill in Kentucky appears to have been built at Covington in 1829, a portion of its machinery having been obtained from the dismantled Union rolling mill at Pittsburg. Ashland, in Boyd county, has recently become prominent as an iron centre. • Tennessee. — The first settlers of Tennessee erected iron works within its limits soon after the close of the Revolution. Bishop says that a bloomary was built in 1790 at Emeryville, in Washington county. At Elizabethton, on Doe river, in Carter county, a bloomary was built about 1795. Wagner's bloomary, on Roane creek, in Johnson county, is said to have been built in the same year. A bloomary was also erected on Camp Creek, in Greene county, in 1797. Two bloomaries in Jefferson county — the Mossy creek forge, ten miles north of Dandridge, and Dumpling forge, five miles west of Dandridge — were built in the same year. About the same time, if not earlier, David Ross, the proprietor of iron works in Campbell county, Virginia, erected a large furnace and forge at the junction of the two forks of the Holston river, in Sullivan county, near the Virginia line on the " great road from Knoxville to Philadelphia." Bishop states an interesting fact in the following words: "Boats of 25 tons burden could ascend to Ross's iron works, nearly 1,000 miles above the mouth of the Tennessee. At Long Island, a short distance above on the Holston, where the first permanent settlement in Tennessee was made in 1775, boats were built to transport iron and castings made in con- siderable quantities at these works, with other produce, to the lower settlements and New Orleans." A bloomary was built about 1795 below the mouth of the Watauga, and another at the same time about twenty-five miles above the mouth of French Broad river and thirty miles above Knoxville. All of the above-mentioned enterprises were in East Tennessee. In West Tennessee iron was also made in the last decade of the last century. Nashville was founded in 1780, and a few years later iron ore was discovered about thirty miles west of the future city. Between 1790 and 1795 Cumberland furnace was erected on Iron fork of Barton's creek, in Dickson county, seven miles northwest of Char- lotte. This furnace was rebuilt in 1825, and was in operation in 1880. Dickson county and its neighbors, Stewart and Montgomery counties, afterwards became very prominent in the manufacture of charcoal pig iron. Other counties in the same section of the state have also, but in a less con- spicuous degree, made iron in charcoal fiirnaces. The first furnace in Montgomery county was probably Yellow Creek, fourteen miles southwest of Clarksville, built in 1802. The iron industry of Tennessee made steady progress after the opening of the present century. Both fiirnaces and bloom- aries multiplied rapidly. In 1856 Lesley enumerated over seventy-five forges and bloomaries, seventy-one furnaces, and four rolling mills in Tennessee, each of which had been in operation at some period after 1790. Of the furnaces, twenty-nine were in East Tennessee, and forty-two in Mid- dle and West Tennessee. Of the latter, fourteen were in Stewart county, twelve in Montgomery, seven in Dickson, two in Hickman, two in Perry, two in Decatur, two in Wayne, and one in Hardin county. There were at one time forty-one furnaces on the Cumberland river in Tennessee and Kentucky. The furnaces in East Tennessee were mainly in Sullivan and Carter counties — Sullivan having five and Carter seven, but Johnson, Washington, Greene, Cocke, Sevier, Monroe, Hamilton, Claiborne, Campbell, Grainger, and Union counties each had one or two furnaces, while Roane county had three. There was a very early fiirnace in Polk county, which is not noted by Lesley but is men- tioned by Bishop. The forges and bloomaries were mainly located in East Tennessee. Johnson county contained fifteen, Carter ten, Sullivan six, Washington three, Greene ten, Campbell seven, Blount four, Roane seven, Rhea three, and a few other counties one and two each. Nearly all of these were bloomaries. In West Tennessee there were less than a dozen refinery forges, and one or two bloomaries. The forges of West Tennessee, like those of Kentucky, were mainly employed from about 1825 to 1860 in the manufac- ture of blooms for rolling mills, many of which were sold to mills in the Ohio valley. Most of the furnaces, forges, and bloomaries enumerated by Lesley have long been aban- doned. There still remain in Tennessee twenty charcoal furnaces and about the same number of forges and bloom- aries. There were also in the state in 1880 five bituminous furnaces — all of recent origin, four rolling mills, and two steel works. Cumberland rolling mill, on the left bank of the Cumberland river, in Stewart county, was built in 1829, and was probably the first rolling mill in the state. It was the only rolling mill in Tennessee as late as 1856. Since the close of the civil war Chattanooga has become the most prominent iron center in Tennessee, having several iron enterprises of its own and others in the vicinity. Prior to the war Bins' furnace had been built in 1854 to use char- coal, and at the beginning of the war, in 1861, S. B. Lowe commenced the erection of the Vulcan rolling mill, to roll bar iron. This mill was not finished in 1863, when it was burned by the Union forces. Mr. Lowe rebuilt the mill in 1866. It is now owned and operated by the Powell Iron and Nail Company. In 1864 a rolling mill to reroU iron rails was erected by the United States Government, under the supervision of John Fritz, then superintendent of the Cambria iron works. It is now owned and operated by the Roane Iron Company. The first open-hearth steel made in any southern state was made by the Siemens-Martin process at Chattanooga, by this company, on the 6th day of June, 1878. Lookout rolling mill was built by the Tennessee Iron and Steel Company in 1876, and was started in Octoberof that year. Lewis Schofield was at the time the president of the company. The prominence of Chattanooga as an iron center is partly due to the excellent bituminous coal which is found in the neighborhood, and partly to its superior transpor- tation facilities. Tennessee is destined to become much more prominent in the manufacture of iron than it has ever been. It will owe this prominence largely to the abundance of good bitumi- nous coal which it possesses, but largely also to the improve- ments in the manufacture of charcoal "pig iron which have already been adopted in many instances, and which are cer- tain to be generally adopted at an early day. Of the good quality of Tennessee ores nothing needs to be said. —Compiled from James M. Fu-ank'eltepoHon Iron andSlee', Tenlh Census of the U.S. THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. 61 PRIMITIVE CHARACTER OF THE IRON WORKS OF NORTH CAROLINA AND TENNESSEE. THE establishment at an early day of so many charcoal furnaces and ore bloomaries in western North Caro- lina and East Tennessee — sections of our country re- mote from the sea-coast and from principal rivers — is an interesting fact in the iron history of the country. The people who built these furnaces and bloomaries were not only bold and enterprising, but they appear to have been born with an instinct for making iron. Wherever they went they seem to have searched for iron ore, and having found it, their small charcoal furnaces and bloomaries soon followed. No states in the Union have shown in their early history more intelligent appreciation of the value of an iron industry than North Carolina and Tennessee, and none have been more prompt to establish it. It is true that their aim has been mainly to supply their own wants, but this is a praise- worthy motive, and people are not to be found fault with if a lack of capital and of means of transportation prevents them from cultivating a commercial spirit. The enterprije of the early ironworkers of Western North Carolina and East Tennessee assumes a picturesque aspect when viewed in connection with the primitive methods of manufacture which were employed by them, and which they have continued to use until the present day. Their charcoal furnaces were blown through one tuyere with wooden "tubs" adjusted to attachments which were slow in motion, and which did not make the best use of the water-power that was often insufficiently supplied by mountain streams of limited volume. A ton or two of iron a day, in the shape of pigs or castings, was a good yield. The bloomaries, with scarcely an exception, were furnished with the trompe, or water-blast, — a small stream with a suitable fall supplying both the blast for the fires and the power which turned the wheel that moved the hammer. Of cast iron cylinders, steam power, two tuyeres, and many other improvements in the charcoal-iron industry these people knew but little, and that little was mainly hearsay. They were pioneers and frontiers- men in every sense ; from the great world of invention and progress they were shut out by mountains, and streams, and hundreds of miles ofSunsubdued forest. It is to their credjt, and it should not be forgotten, that they diligently sought to utilize the resources which they found under their feet, and that they were not discouraged from undertaking a dif- ficult task because the only means for its accomplishment of which they had any knowledge were crude in conception and often difficult to obtain. It is a curious fact that the daring men who pushed their way into the wilds of western North Carolina and East Ten- nessee in the last century, and who set up their small fur- naces and bloomaries when forts yet took the place of hamlets, founded an iron industry which still retains many of the primitive features that at first characterized it. There are ti-day in Tennessee about two dozen bloomaries, and in North Carolina a dozen or more, which are in all respects the coun- terparts in construction of those which the pioneers estab- lished. Nearly every one of these bloomaries is to-day blown with the trompe, and in all other respects they are as barren of modern appliances as if the world's iron industry and the world itself had stood still for a hundred years. They are fitfully operated, as the wants of their owners or of the neighboring farmers and blacksmiths require, or as the sup- ply of water for the trompes and hammers will permit. They furnish their respective neighborhoods with iron for horse- shoes, wagon-tires, and harrow-teeth. Mr. J. B. Killebrew, of Nashville, informs us that throughout the counties of Johnson and Carter, in Tennessee, where many of these bloomaries are located, bar iron is used as currency. He says: "Iron is taken in exchange for shoes, coffee, sugar, calico, salt, and domestic and other articles used by the people of the country. It is considered a legal tender in the settlement of all dues and liabilities. This bar iron, after being collected by the merchants, is sent out and sold in Knoxville, Bristol, and other points affording a market." The explanation of the survival in this day and in this country of primitive methods of making iron which have long been abandoned by progressive communities lies in the fact that the environments which hedged about the pioneers of western North Carolina and East Tennerisoe have never been broken down, and have been only slightly modified. Few of the mountains and streams and forests of these sec- tions ha^e been tunneled, or bridged or traversed by modern means of communication. The iron horse has made but slow progress in bringing this part of our country into asso- ciation with other sections. Cut off by their isolated situation and their poverty from all intimate relations with the outside world, the pioneers we have mentioned are not to be blamed for not adopting modern methods and. for clinging to the customs of their fathers. They are rather to be praised for the efforts they have made to help themselves. But old things must pass awav, even in the iron industry of North Carolina and East Tennessee. At Chattanooga, Rockwood, Oakdale, Knoxville, South Pittsburgh, and Cowan the trans- formation has already commenced. Before this century closes the people of whom we have been writing will wonder that the old ways of making iron stayed with them so long. There are a few ore bloomaries still left in southwestern Virginia which are similar in all respects to those of western North Carolina and East Tennessee, and which are used for precisely similar purposes. But the manufacture of iron in bloomaries was never relatively so prominent a branch of the iron industry of Virginia as of the other two states mentioned. — Compiled from James M. Sioani s Report on Iron and Stael, Tenth Cenma of the U. 8 EARLY IRON INDUSTRIES OF ALABAMA. THE earliest furnace in Alabama mentioned by Lesley was built about 1818, a few miles west of Russellville, in Franklin county, and abandoned in 1827. This unsuccessful venture appears to have had a dispiriting effect on other schemes to build furnaces in Alabama, as we do not hear of the erection of any for many years after it was abandoned. A furnace was builtat Polksville, in Calhoun county, in 1843; one at Round Mountain, in Cherokee county, in 1852 ; and Shelby furnace at Shelby, in Shelby county, in 1848. These were all charcoal furnaces, and were the only ones in Alabama enumerated by Lesley in 1856. The total product in that year of the three last- named furnaces was 1,495 tons. Shelby furnace was built by Horace Ware, who many years afterwards added a small foundry and a small mill for rolling cotton-ties and bar iron. The furnace was burned in 1858, but was immediately rebuilt. The mill was commenced in 1859, and on the 11th of April, 1860, the first iron was rolled. It was burned in April, 1865, by General Wilson's command of Union troops, and has not been rebuilt. Alabama had a bloomary two and a half miles southwest of Montevallo, in Shelby county, in 1825 ; several bloomaries in Bibb county between 1830 and 1840 ; one in Talladega county in 1842 ; two in Calhoun county in 1843 ; and others in various counties at later periods. In 1856 seventeen forges and bloomaries, mostly the latter, were mentioned as having been built at various periods prior to that year, about one-half of which were then in operation, producing 252 tons of blooms and bar iron. Since 1856 all of the forges and bloomaries of Alabama have gradually disappeared. Most of them were blown with the trompe, and the remainder with wooden "tubs." It will be observed that as late as 1856 Alabama possessed a very small iron industry. During the civil war several new iron enterprises were undertaken. A furnace in Sanford county was built in 1861 ; Cornwall furnace, at Cedar Bluff, in Cherokee county, was built in 1862 ; a second Shelby fur- nace, in Shelby county, was built in 1863 ; Alabama furnace, in Talladega county, was built in 1863, burned by General Wilson in April, 1865, and rebuilt in 1873. Two furnaces and a small rolling-mill were built at Brierfield, in Bibb county, in 1863 and 1864. All of the furnaces were built to use charcoal. The Brierfield rolling-mill was first used for rolling bar iron and rails. In 1863 or early in 1864 it was sold to the Confederate government, by which it was operated until 1865, when it was burned by the Union troops under General Wilson. It was rebuilt after the war, and for soma 62 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. time was used to roll bar iron and cotton-ties, principally the latter. After having been idle for several years, this mill is again in operation. Since the close of the civil war the attention of Northern capitalists has been attracted to the large deposits of rich ores in Alabama, and several new furnaces, with modern improvements, have been built by them, some to use charcoal and others to use coke. Most of these furnaces are now in operation. Two new rolling-mills have also been built in Alabama since the war — one at Helena, in Shelby county, built in 1872, and one at Birming- ham, in Jefferson county, built in 1880. The existence of bituminous coal in Alabama was first observed in 1834, by Dr. Alexander Jones, of Mobile, but little was done to develop the ample coal resources of the State until after the close of the civil war, when it was found that the coal in the neighborhood of Birmingham and at other places would produce excellent coke for blast furnaces, and that at least two coal fields — ^the Black Warrior and Coosa — were so extensive as to set at rest all apprehension concerning a constant supply of coal for a long period of time. These discoveries, joined to the possession of an abundant supply of good ores, at once gave Alabama promi- nence as a State which would, before many years, boast a large iron industry, and this promise is now being fulfilled. — Compiled from James M. S-wanVs Report on Iron and Steel, Tenth Census oftlte U. 8. IRON INDUSTRIES IN THE WESTERN AND SOUTH-WESTERN STATES. THE beginning of the iron industry of Ohio is cotempo- rary with the admission of the state into the Union. It was admitted in 1802, and in 1803 its first furnace, Hopewell, was commenced by Daniel Heaton, and in 1804 it was finished. (The name of Daniel Heaton was after-, wards changed by act of assembly to Dan Eaton. ) The fur- nace stood on Yellow creek, about one and a quarter miles from its junction with the Mahoning river, in the township of Poland, in Mahoning county. On the same stream, about three-fourths of a mile from its mouth, and on the farm on which the fiirnace of the Struthers Furnace Company now stands, in the village of Struthers, another furnace was built in 1806 by Robert Montgomery and John Struthers. This furnace was called Montgomery. Thomas Struthers writes : " These furnaces were of about equal capacity, and would yield about two and a half or three tons each per day. The metal was principally run into molds for kettles, bake-ovens, flat irons, stoves, andirons, and such other arti- cles as the needs of a new settlement required, and any sur- plus into_ pigs and sent to the Pittsburg market." The ore was obtained in the neighborhood. Hopewell furnace is said by Mr. Struthers to have had a rocky bluff" for one of its sides. It was in operation in 1807, but soon afterwards it was blown out finally. Montgomery furnace was in ope- ration until 1812, when, Mr. Struthers says, "the men were drafted into the war, and it was never started again." This furnace stood "on the north side of Yellow creek, in a hol- low in the bank." We are informed by Hon. John M. Edwards, of Youngstown, that Hopewell furnace was sold by Eaton to Montgomery, Clendenin & Co. about 1807, who were then the owners of Montgomery Furnace, John Struthers having sold his interest, or part of it, to David Clendenin in 1807, and Robert Alexander and James Mackey having about the same time become part owners. The above men- tioned iron enterprises were the first in Ohio, and, as will be observed, they were both on the Western Reserve. There were other early iron enterprises on the Reserve. At Nilestown, now Nile", in Trumbull county, as we are in- formed by Colonel Charles Whittlesey, of Cleveland, James Heaton built a forge in 1809, for the manufacture of bar iron from "the pig of the Yellow Creek furnace "—Montgomery furnace. ' This forge produced the first hammered bars in the state." It continued in operation until 1838. About 1812 James Heaton built a furnace at Nilestown, near the mouth of Mosquito Creek, where the Union school building now stands. It was called Mosquito Creek fiirnace, and for many years used bog ore, the product being stoves and other castings. It was in operation until 1856, when it was abandoned. About 1816 Aaron Norton built a furnace at Middlebury, near Akron, in Summit county, and in 1819 Asaph Whittle- sey built a forge on the Little Cuyahoga, near Middlebury. A furnace at Tallmadge, in the same county, was built about the same time. These two furnaces v^ere operated until about 1835. The beginning of the iron industry in the counties on Lake Erie probably dates from 1825, when Ar- cole furnace was built in Madison township, in the present county of Lake, by Root & Wheeler, and Concord furnace, in the same county, was built by Fields &Stickney. Geauga furnace, one mile north of Painesville, in Lake county, and Railroad furnace, at Perry, in Geauga county, were built about 1825 — the former by an incorporated company and the latter bj' Thorndike & Drury, of Boston. During the next ten or twelve years several other furnaces were built near Lake Erie, in Ashtabula, Cuyahoga, Erie, Huron, and Lorain counties. At a still later period other charcoal furnaces were built in the lake counties. All of these lake furnaces, writes John Wilkeson in 1858, " were blown some eight months each year, and made about 30 tons per week of metal from the bog ore found in swales and swamps near, and generally to the north of, a ridge of land which was probably once the shore of Lake Erie, found extending, with now and then an interval, along from the west boundary of the state of New York to the Huron river in Ohio. The want of wood for charcoal, consequent upon the clearing up of the land, has occasioned the stoppage of most of these works. For a long time the settlers upon the shores of Lake Erie and in the state of Michigan were supplied with their stoves potash-kettles, and other castings by these works." AH of the above-mentioned iron enterprises were on the Western Reserve. Just outside of its limits Gideon Hughes built a furnace in 1807 or 1808, on the Middle fork of Little Beaver creek, one and a half miles northwest of New Lisbon, in Columbiana county. It was in operation in 1808 and 1809. It was first called Rebecca of New Lisbon, but was after- wards named Dale furnace. Attached to this furnace a few years after its erection was a forge, which was used for making bar iron. John Frost, of New Lisbon, to whom we are indebted for this information, also writes us that " some two or three miles up the same stream Mr. Hughes and Joshua Malin erected a rolling mill in 1822, to which a com- pany of Englishmen, said to be from Pittsburg, not long afterwards added nail-making machinery. In addition to manufacturing bar iron, these works placed large quantities of nails in the market. This concern was more or less active till 1832, when the great flood of waters early in that year destroyed it, and it was never rebuilt." New Lisbon is located about twelve miles from the mnuth of Little Beaver creek, which empties into the Ohio river. Soon after the beginning of the iron industry on the West- ern Reserve the manufacture of iron was undertaken in some of the interior and southern counties of the state. Bishop says that Moses Dillon, who had been associated with Colonel Meason and John Gibson in the building of Union furnace, in Fayette countv, Pennsylvania, in 1793 afterwards erected a forge on Licking river, near Zanes- vule, Ohio, possibly the first in the state." This enterprise was preceded or immediately succeeded by a Airnace and the date of its erection is said to have been 1808, but it may have been a few years later. It was located " at the falls of Licking, four miles northwest of Zanesville, in Muskingum county, and its capacity was about one ton per day. It was used to produce castings, as well as pig iron for the forge Lesley says that this furnace was not aljandoned "until 1850 or Jater. The forge was also operated until about 1850. 1 he furnace and forge were known as Dillon's, and were widely celebrated. Mary Ann furnace, ten miles northeast ot JNewark in Licking county, was built about ISKi by Dr. Brice and David Moore. It was burned down about 1850. in luscarawas county the Zoar Community owned two early charcoal furnaces. One of these, called Tuscarawas was built about 1830 by Christmas, Hazlett & Co., and was atterwards sold to the Community; the other, called Zoar, was built about the same time by the Community. Both luruaces were blown out finally before 1850. Three fur- THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 63 naces were built in Adams county between 1811 and 1816. The first of these, Brush Creek, on the stream of that name, and twelve miles from the Ohio river, was operated in 1813 by James Rodgers. It was probably built in 1811, its build- ers being Andrew Ellison, Thomas James, and Archibald Paull. It was in operation as late as 1837, when it produced 200 tons of iron in 119 days. On the same stream, twenty- two miles from the Ohio, was Marble furnace, built in 1816. Another furnace, known as Old Stream, was built in 1814. This furnace is said to have been built by James Rodgers, A ndrew Ellison, and the Pittsburg Steam Engine Company. Thomas W. Means informs us that " the first blast furnace run by steam in southern Ohio, if not in the United States, was built by James Rodgers in Adams county about 1814." This reference is to Old Stream furnace. " Its product was less than two tons of iron a day. Brush Creek furnace, in the same county, and other furnaces of that period which were run by water, hardly averaged one ton of iron a day. " Marble and Old Stream furnaces were abandoned about 1826. Lesley mentions three forges in Adams county — Stream, at Old Stream furnace ; Scioto, on the Little Scioto ; and Brush Creek, probably connected with Brush Creek furnace. The date of the erection of these forges is not given, but they were doubtless built soon after the three Adams county furnaces. They were all abandoned many years ago. There ia now no iron industry in Adams county. In the chapter relating to Kentucky the beginning of the' iron industry in the Hanging Rock region has been noted. This celebrated iron district embraces Greenup, Boyd, Carter, and Lawrence counties in Kentucky, and Lawrence, Jackson, Gallia, and Vinton counties and part of Scioto county in Ohio. Just north of the Ohio portion of this district is the newly-developed Hocking Valley iron dis- trict, embracing Hocking and several other counties. The Hanging Rock district takes its name from a projecting cliff upon the north side of the Ohio river, situated back of the town of Hanging Rock, which is three miles below Ironton, in Lawrence county. The first furnace in the Ohio part of Hanging Rock district was Union furnace, situ- ated a few miles northwest of Hanging Rock, built in 1826 and 1827 by John Means, John Sparks, and James Rodgers, the firm's name being James Rodgers & Co. Franklin furnace was the second on the Ohio side. It stood sixteen miles east of Portsmouth and half a mile from the Ohio river, in Scioto county, and was built in 1827 by the Rev. Daniel Young and others. The next furnace was Pine Grove, on Sperry's fork of Pine creek, back of Hanging Rock, and five miles from the Ohio river, in Lawrence county, built in 1828 by Robert Hamilton and Andrew Ellison. In the same year Scioto furnace, in Scioto county, fifteen miles north of Portsmouth, was built by William Salters. From this time forward blastfurnaces increased rapidly on the Ohio side of the district, as well as on the Kentucky side. From 1826 to 1880 the whole number built on the Ohio side was about sixty, and on thcKentucky side about thirty. All of the early furnaces were built to use charcoal, but timber becoming scarce, coke was substituted at some of them, while others were abandoned. In late years a few furnaces have been built in the district expressly to use coke or raw coal. In 1880 there were on the Ohio side thirty-one char- coal furnaces and seventeen bituminous coal or coke furnaces. At Vesuvius furnace, on Storm's creek, in Lawrence county, Ohio, six miles northeast of Ironton, the hotblast was successfully applied in 1836 by John Campbell and others, William Firmstone putting up the apparatus. The Hanging Rock district, on both sides of the Ohio, has pro- duced many eminent ironmasters, and its iron resources have been developed with great energy. Most prominent among its ironmasters of the generation now passing away are John Campbell, of Ironton, and Thomas W. Means, of Hanging Rock. Mr. Campbell^ who is a native of Brown county, Ohio, was born in 1808. In connection with others he has built eleven furnaces in the Hanging Rock district. He projected the town of Ironton and gave it its name, and also assisted in the founding of Ashland, Kentucky, and in building its railroad. Like most of the ironmasters of this district he is of Scotch-Irish extraction, his ancestors having removed in 1612 from Inverary, in Argyleshire, Scotland, to the neighborhood of Londonderry, in Ulster, Ireland. Their descendants removed in 1729 and 1739 to Augusta county. Virginia ; thence, in 1790, to Bourbon county, Kentucky ; and thence, in 1798, to that part of Adams cc^anty, Ohio, which is now embraced in Brown county. Mr. Means was born in South Carolina in 1803, and is also of Scotch-Irish origin. His father, John Means, was an owner of one of the furnaces and forges in Adams county, Ohio. He was bom in Union district, South Carolina, on March 14, 1770, and moved to Adams county, in 1819, taking with him his slaves, whom he liberated. He died on his farm near Manchester, in Adams county, on March 15, 1837, and was buried in the churchyard in Manchester. Andrew Ellison, Robert Hamil- ton, James Rodgers, and Andrew Dempsey, now deceased, were enterprising and prominent iron manufacturers. In December, 1844, Mr. Hamilton successfully tried the ex- periment of stopping Pine Grove furnace, which he then owned, on Sunday, and his example has since been generally followed in the Hanging Rock region. This furnace is still active. John Campbell, Robert Hamilton, and Thomas AV. Means were united in marriage with members of the Ellison family. The third generation of this family is now engaged in the iron business of southern Ohio. In 1833 a forge was built at Hanging Rock, after which it was named, to manufacture blooms. It was owned by J. Riggs & Co., and was built under the superintendance of John Campbell and Joseph Riggs. A Rolling mill was added before 1847. Both the forge and rolling mill have long been abandoned. A forge was built at Sample's Land- ing, fifteen miles below Gallipolis, soon after 1830, to make blooms for the Covington rolling mill. Bloom forge was built at Portsmouth, in Scioto county, in 1832, and in 1857 a rolling mill was added. A forge called Benner's, on Paint creek, near Chillicothe, in Ross county, once owned by James & Woodruff, was abandoned about 1850. There never were many forges in Ohio for refining iron, and there have been few, if any, for making bar iron directly from the ore. The first iron enterprise in the state preceded by only a few years the building of rolling mills at Pittsburg. The Globe rolling mill was built at Cincinnati in 1845. Joseph Kinsey writes us that it "was the first built in Cin- cinnati for the purpose of making general sizes of merchant iron, hoops, sheets, and plates. It was built by William Sellers and Josiah Lawrence, and was considered a great enterprise at that time. Soon afterwards a wire mill was added for the purpose of making the first wire used for the lines of telegraph extending through this country. " The foregoing details relate to what may be termed the charcoal era of the Ohio iron industry. The second stage in the develop- ment of the iron industry of this state dates from the intro- duction in its blast furnaces of the bituminous coal of the Mahoning valley in its raw state. This coal is known as splint, or block coal, or as Brier Hill coal, from a locality of that name near Youngstown where it is largely mined. The first furnace in Ohio to use the new fuel was built expressly for this purpose at Lowell, in Mahoning county, in 1845 and 1846, by Wilkeson, Wilkes & Co., and it was successfully blown in on the 8th of August, 1846. The name of this furnace was Mahoning. A letter from John Wilkeson, now of Buffalo, New York, informs us that Wil- liam McNair, a millwright, was the foreman who had charge of its erection. It was blown in by John Crowther, who had previously had charge of the ftirnaces of the Brady's Bend Iron Company, at Brady's Bend, Pennsylvania. Mr. Wilkeson and his brothers had for many years been promi- nent charcoal-iron manufacturers on the Western Reserve. They are of Scotch-Irish extraction. Th§ir father was a native of Carlisle, Pennsylvania. Immediately after the successful use of uncoked coal in the furnace at Lowell many other furnaces were built in the Mahoning valley to use the new fuel, and it was also substituted for charcoal in some old furnaces. At a later day theuseofthisfuelandof Connells- ville coke contributed to the further development of the manu- facture of pig iron in Ohio, and at a still later and veiy recent date the opening of the extensive coal beds of the Hocking valley and the utilization of its carbonate ores still further contributed to the same development. The beginning of the iron industry at Youngstown, which now has within its own limits or in the immediate vicinity twelve furnaces and six rolling mills, dates from about 1835, when a charcoal furnace called Mill Creek was built on a creek of the same name, a short distance southwest of the G4 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. city, by Isaac Heaton, a son of James Heaton. There was no other furnace at Youngstown until after the discovery at Lowell that the block coal of the Mahoning valley could be successfully used in the smelting of iron ore. In a recent sketch of the history of Youngstown Hon. John M. Edwards says : " In 1846 William Philpot & Co. built in the north- western part of Youngstown, adjoining the present city, and near the canal, the second furnace in the state for using raw mineral coal as fuel. In the same year a rolling mill was built in the southeastern part of the village, and adjoining the canal, by the Youngstown Iron Company. This mill is now owned by Brown, Bonnell & Co." In a sketch of Youngstown, Past and Present, printed in 1875, a fuller ac- count is given of the first bituminous furnace at that place. It was known as the Eagle furnace, and was " built in 1846 by William Fhilpot, David Morris, Jonathan Warner, and Harvey Sawyer, on land purchased of Dr. Henry Manning, lying between the present city limits and Brier Hill. The coal used was mined from land contiguous, leased from Dr. Manning." The second furnace at Youngstown to use raw coal was built in 1847 by Captain James Wood, of Pitts- burg. It was called Brier Hill furnace. The proximity of the coal fields of Ohio to the rich iron ores of Lake Superior has been an important element in building up the blast-furnace industry of the state. The use of these ores in Ohio soon followed the first use in the blast furnace of the block coal of the Mahoning valley. An increase in the rolling-mill capacity of Ohio was naturally coincident with the impetus given to the production of pig iron by the use of this coal and Lake Superior ores. David Tod, afterwards governor of Ohio, bore a prominent part in the develop- ment of the coal and iron resources of the Mahoning valley. The iron industry of Cleveland has been built up during this period, and the city is now one of the most prominent centers of iron and steel production in the country. Charles A. Otis, of Cleveland, writes us as follows concerning the first rolling mills in that city: "The first rolling mill at Cleveland was a plate mill, worked on a direct ore process, which was a great failure. It went into operation in 1854 or 1855. The mill is now owned by the Britton Iron and Steel Company. The next mill was built in 1856 by A. J. Smith and others, to reroll rails. It was called Railroad rolling mill, and is now owned by the Cleveland Rolling Mill Company. At the same time a man named Jones, with several associates, built a mill at Newburgh, six miles from Cleveland, also to. reroll rails. It was afterwards operated by Stone, Ohisholm & Jones, and is now owned by the Cleve- land Rolling Mill Company. In 1852 I erected a steam forge to make wrought-iron forgings, and in 1859 I added to it a rolling mill to manufacture merchant bar, etc. The Union rolling mills were built in 1861 and 1862 to roll mer- chant bar iron." In the list of persons connected with the development of the iron and steel industries of Cleveland, the name of Henry Chisholm is most prominent. Mr. Chishoim was born at Lochgelly, in Fifeshire, Scotland, on April 27, 1822, and died at Cleveland on May 9, 1881, aged 59 years. From 1846 to 1880 the iron industryof Ohio has made steady progress, and the state now ranks second among the iron pro- ducing states of the Union. This was also its rank in 1870. Indiana. — Indiana possessed a small charcoal-iron indus- try before 1850, but at what period inthe present century this industry had its beginning cannot now be definitely deter- mined. Tench Coxe makes no reference to it in 1810, but mentions one nailery in the territory, which produced in that year 20,000 pounds of nails, valued at 14,000. He does not locate this enterprise. In 1840 the cen^ius men- tions a furnace in Jefferson county, one in Parke, one in Vigo, one in Vermillion, and three in Wayne county, the total product being only 810 tons of "cast iron." A forge in Fulton county, producing twenty tons of "bar iron," is also mentioned. The census of 1840, however, frequently confounds furnaces with foundries, and it is therefore possible that some of the alleged furnaces in Indiana at that period were foundries. In 1859 Lesley enumerated five charcoal furnaces in Indiana, as follows : Elkhart, in Elk- hart county, date of erection unknown; Laporte near the town of that name, in Laporte county, built in 1848 ; Mishawaka, in Saint Joseph county, built about 1833 ; Richland, on Richland creek, in Greene county, built in 1844 by A. Downing ; and Indiana, a few miles northwest of Terre Haute, in Vigo county, built in 1839. The three last named were in operation in 1857, but were abandoned about 1860. Elkhart and La Porte furnaces were idle in 1857, and probably had been abandoned at that time. Elkhart, La Porte, and Mishawaka used bog ore exclusively, and Richland used it in part ; in 1857 Mishawaka was still using it. Indiana furnace used brown hematite found in the neighborhood. In a chapter on the geology of Monroe county, by George K. Greene, printed in 1881, it is stated that " nearly forty years ago an iron furnace was erected by Randall Ross, of Virginia, on the lands of George Adams, of Monroe county, on section 7, township 7, range 2, west. The investment soon proved a failure, and the furnace has long since gone to decay. The ruins of the 'old iron fur- nace ' are to-day the mournful monument of an early spirit of enterprise that deserved a better fate." The early Indiana furnaces doubtless made more castings than pig iron. In 1860 there was only one furnace in blast in Indiana — Richland. It was abandoned probably in that year, and from this time until 1867 no pig iron was made in Indiana. In the latter year the manufacture of pig iron in this state was revived, the development of the block-coal district in the neighborhood of Brazil, in Clay county, having led to the belief that this fuel might be profitably used in blast furnaces. Planet furnace, at Harmony, in Clay county, built in the summer of 1867, and put in blast in November of that year, was the first of eight furnaces that were built in Indiana between 1867 and 1872 to use this coal, the ores for the furnaces being mainly obtained from Missouri and Lake Superior. Five of these furnaces were in Clay county. Of the eight furnaces built, four have been abandoned and torn down since 1872, and, of the remaining four, one is now using charcoal and three are using block coal. No furnaces have been built in Indiana since 1872. Except the solitary forge above mentioned we have no record of any forges or bloomaries having been built in Indiana at any period. The first rolling mill in the state was probably the Indianapolis mill, built by R. A. Douglas, which was completed in the autumn of 1857, and put in operation in November of the same year. Lesley in 1858 says : " The machinery and building were planned by Lewis Schofield, of Trenton, New Jersey, who also built the Wyandotte mill and is building the mill at Atlanta, Georgia." There were in 1880 nine rol- ling mills in Indiana, four of which were rail mills. The state contained no steel works in that year. Illinois. — In 1839 a small charcoal flirnace was built four miles northwest of Elizabethtown, in Hardin county, in the extreme southeastern part of Illinois, by Leonard "White, Chalen Guard & Co. It was called Illinois. This is the first furnace in the state of which there is any record, and it probably had no predecessor. In 1853 it was purchased by 0. Wolfe & Co., of Cincinnati, who tore down the stack and built a larger one in 1856, with modern editions. In 1873 this furnace, after having been out of blast for several years, was repaired, but it has not since been put in blast. A char- coal furnace called Martha was built in 1848 by Daniel McCook & Co. about two miles east of Illinois furnace. It was probably the second furnace in the state. Illinois and Martha furnaces were both in blast in 1850, but in 1860 only Illinois was in blast. Martha had not been in operation since 1856, and it probably never made any iron aSer that year. It has long been abandoned. These furnaces were supplied with limestone ore from the immediate neighbor- hood. They seem to have been the only charcoal-iron enter- prises of any description that ever existed in Illinois. In the census of 1840 mention is made of a furnace in Cook county, one in Fulton, one in' Hardita, and one in AVabash county. The furnaces in Fulton and Hardin counties were idle ; the furnaces in Wabash county produced eight tons, and the furnace in Cook county produced 150 tons of " cast iron." As the census of 1840 frequently confounds blast furnaces with foundries, reliance cannot be placed in the correctness of its statements concerning furnaces in Il- linois. We have definitely ascertained that there was no furnace in Cook county in that year, and that the furnace with which it is credited in the census was Granger's foun- dry, the only one in Chicara at that time. There appears to have Tjeen no furnace in operation in Illinois from 1860 to 1868. Soon after the close of the THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 65 civil war the attention of iron manufacturers was attracted to the Big Muddy coal fields, in the southwestern part of Illinois, and to the proximity to these coal fields of the rich iron ores of Missouri. In 1868 the Grand Tower Mining, Manufacturing, and Transportation Company, built two large furnaces at Grand Tower, in Jackson County, Illinois, to use the Big Muddy coal in connection with Missouri ores ; and in 1871 another large furnace, called Big Muddy, was built at Grand Tower by another company, to use the same fuel and ores. The two Grand Tower furnaces have been out of blast for several years and are now abandoned, but the Big Muddy furnace is still in blast. At East Saint Louis the Meier Iron Company built two large coke fur- naces between 1873 and 1875. These furnaces are now in operation, their fuel being mainly Carbondale coke from Jackson county, Illinois, The iron industry at Chicago and its vicinity properly dates from 1857, when Captain E. B. Ward, of Detroit, built the Chicago rolling mill, on the right bank of the Chicago river, "just outside of the city." This mill was built to re-roll iron rails. It formed the nucleus of the present very extensive works of the North Chicago Rolling Mill Company. There was no furnace at Chicago until 1868, when two furnaces were built by the Chicago Iron Company. They are now owned by the Union Iron and Steel Company. One was blown in early in 1869, and the other late in the same year. Two furnaces were built at Chicago in 1869 by the North Chicago Rolling Mill Company. No other fiirnaces were built in Chicago until 1880, when seven new furnaces were undertaken, three of which were finished in that year and two in 1881. At Joliet, thirty-seven miles southwest of Chicago, the Joliet Iron and Steel Company built two furnaces in 1873. They are now owned by the Joliet Steel Company. In 1880 there were thirteen rolling mills and steel works in Illinois, three of which were Bessemer steel works — ^two at Chicago and one at Joliet, and one was an open-hearth steel works at Springfield. At the beginning of 1880 there were ten blast furnaces in the state, and, as has been mentioned, three new fiirnaces were finished during the year and four others were undertaken. In 1880 Illinois ranked fourth among the iron and steel producing states of the Union, making a great stride since 1870, when it ranked fifteenth. Michigan. — If we could credit the census of 1840 there were fifteen blast furnaces in Michigan in that yeai — one in each of the counties of Allegan, Branch, Cass, Kent, Mon- roe, and Oakland, two in Calhoun, two in Washtenaw, and five in Wayne county. Some of these alleged furnaces were doubtless foundries, particularly in counties lying upon or not very remote from Lake Erie, vessels upon which could bring pig iron for their use from neighboring states. Others were undoubtedly true blast fiirnaces, producing household and other castings from bog ores. All of the fifteen enter- prises mentioned were in the southern part of the state. Their total production in 1840 was only 601 tons offcast iron." Neither forges nor bloomaries are mentioned in the census of 1840. From 1840 to 1850 the iron industry of Michigan certainly made no progress, and possibly declined. From 1850 to 1860 a marked improvement took place. Three new furnaces were built in the southern part of the state to use bog ore, and in the northern peninsula and at Detroit and Wyandotte a commencement was made in smelting the rich ores which had been discovered in the now celebrated Lake Superior iron-ore region. In 1859 Lesley enumerated the following bog-ore flirnaces in the southern part of the state: Kalamazoo, at the city of that name, in Kalamazoo county, built in 1857 to take the place of an earlier furnace; Quincy, three miles north of the town of that name, in Branch county, built in 1855 ; and Branch county, one mile from Quincy furnace, built in 1854. All of these bog-ore iiirnaces made pig iron in 1857. It is a curious fact that furnaces to use bog ore should have been built in this coun- try after 1850. The development of the Lake Superior iron- ore region marks an important era in the historjr of the American iron trade, and the incidents attending its com- mencement have fortunately been preserved. We learn from A. P. Swineford's History of the Lake Superior Iron Dis- trict that the existence of iron ore on the southern border of Lake Superior was known to white traders with the In- dians as early as 1830. The same writer further mforms us that the first discovery by white men of the iron ore of this 5 region was made by William A. Burt, a deputy surveyor of the General Government, on the 16th of September, 1844, near the eastern end of Teal lake. In June, 1845, the Jack- son Mining Company was organized at Jackson, Michigan, for the purpose of exploring the mineral districts of the southern shore of Lake Superior, and in the summer of the same year this company, through the disclosures of a half- breed Indian, named Louis Nolan, and the direct agency of an old Indian chief, named Man-je-ki-jik, secured possession of the now celebrated Jackson iron mountain, near the scene of Mr. Burt's discovery. It appears, however, thattherepre- sentatives of the company had not heard of Mr. Burt's dis- covery until they met Nolan and the Indian chief. Mr. P. M. Everett, the president of the company, was the leading spirit of the exploring party which secured possession of this valuable property. The actual discovery of Jackson moun- tain was made by S. T. Carr and E. S. Rockwell, members of Mr. Everett's party, who were guided to the locality by the Indian chief. In a letter written on the 10th of November, 1845, at Jackson, Michigan, Mr. Everett, referring to the ore of Jackson Mountain, says that " since coming home we have had some of it smelted, and find that it produces iron and something resembling gold — some say it is gold and cop- per." This smelting is not further described. In 1846 A. V. Berry, one of the Jackson Mining Company, and others, brought about 300 pounds of the ore to Jackson, and in August of that year, writes Mr. Berry, " Mr. Olds, of Cucush Prairie, who owned a forge, then undergoing repair, in which he was making iron from bog ore, succeeded in making a fine bar of iron from our ore in a blacksmith's fire — the first iron ever made from Lake Superior ore." Mr. Swineford says that " one end of this bar of iron Mr. Everett had drawn out into a knife-blade." In 1847 the Jackson Mining Company commenced the erection of a forge on Carp river, about ten miles from its mouth, and near Jackson mountain, which was finished early in 1848, and on the 10th of February of that year the first iron made in the Lake Superior region was made at this forge by Ariel N. Barney. Mr. Swineford says that the forge, which was named after Carp river, had " eight fires, from each of which a lump was taken every six hours, placed under the hammer, and forged into blooms four inches square and two feet long, the daily product being about three tons. The first lot of blooms made at this forge— the first iron made on Lake Superior, and the first from Lake Superior ores, except the small bar made by Mr. Olds — was sold to the late E. B. Ward, and from it was made the walking-beam of the side-wheel steamer Ocean.'' The forge was kept in operation until 1854, when it was abandoned, having in the mean time " made little iron and no money." In 1849 the Marquette Iron Company, a Worcester (Massachusetts) organization, undertook the erection of a forge at Marquette, and in July, 1858, it was finished and put in operation. Mr. Swineford says that it " started with four fires, using ores frcim what are now the Cleveland and Lake Superior mines." It was operated irregularly until December, 1858, when it was burned down and was not rebuilt. The Collins Iron Company was organized in 1853, with Edward K. Collins, of New York, at its head, and in 1854 it built a forge on Dead river, about three miles northwest of Marquette, and in the fall of 1855 the manufacture of blooms was commenced from ore obtained at the company's mines. This forge was in operation in 1858, after which time it seems to have been abandoned. Another forge on Dead river was built in 1854 or 1855 by William G. McComber, Matthew McConnell, and J. G. Butler. The company failed in a few years, and in 1860 Stephen R. Gay erected Bancroft furnace on the site of the forge. Before 1860 every forge in Michigan appears to have been abandoned. It will be observed that all of the first iron enterprises in the Lake Superior district were bloomary forges, the intention evidently having been to build up an iron industry similar to that of the Lake Champlain district. The first pig iron produced in the Lake Superior region was made in 1858 by Stephen R. Gay, who then leased the forge of the Collins Iron Company and converted it in two days, at an expense of $50, into a miniature blast furnace. Mr. Gay writes to C. A. Trowbridge that this furnace was " 2J feet across the bosh, 8 feet high, and 12 inches square at thq 66 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. top and 15 inches square in the hearth,'' and would hold eight bushels of coal. He gives the following details of its first and only blast: "Began on Monday, finished and fired on Wednesday, filled with coal Thursday noon, blast turned on Friday noon, and thenceforth charged regularly with 1 bushel coal, 20 pounds of ore, and 7 pounds of limestone. Oast at six o'clock 500 pounds, and again at eight o'clock Saturday morning, half a ton in all, 92 pounds of which were forged by Mr. Eddy into an 85-pound bloom. This little furnace was run two and a half days, made 2J tons, carrying the last eight hours 30 pounds of ore to a bushel of coal, equal to a ton of pig iron to 100 bushels of coal." These experiments were made in February. The first reg- ular blast furnace in the Lake Superior region was built by the Pioneer Iron Company in the present city of Negaunee, convenient to the Jackson mine. It was commenced in June, 1857, and in February, 1858, it was finished. Another stack was added in the same year. These furnaces took the name of the company. Pioneer No. 1 was put in blast in April, 1858, and Pioneer No. 2 on May 20th, 1859. Both furnaces are now owned by the Iron Cliffs Oompany, and both were in operation in 1880. The second regular blast furnace in this region was the Oollins furnace, built in 1858 by Stephen R. Gay, near the site of the Collins forge. It made its first iron on December 13th of that year. It was abandoned in 1873, owing to the failure of a supply of char- coal. Other furnaces in the Lake Superior region soon fol- lowed the erection of the Pioneer and Collins furnaces. While these early furnaces and the few forges that have been mentioned were being built on the shore of Lake Superior two furnaces were built at or near Detroit to smelt Lake Superior ores. These were the Eureka furnace, at Wyan- dotte, built in 1855 by the Eureka Iron Company, of which Captain E. B. Ward was president, and put in blast in 1856 ; and the Detroit furnace, at Detroit, built in 1856 by the De- troit and Lake Superior Iron Manufacturing Company, of which George B. Russell was president, and put in blast in January, 1857. These furnaces and the others that have been mentioned used charcoal as fuel. The first shipment of iron ore from the Lake Superior region was made in 1850, according to Mr. Swineford, and consisted of about five tons, " which was taken away by Mr. A. L. Crawford, of Newcastle, Pennsylvania." A part of this ore was made into blooms and rolled into bar iron. "The iron was found to be most excellent, and served to attract the attention of Pennsylvania ironmasters to this new field of supply for their furnaces and rolling mills." In 1853 three or four tons of Jackson ore were shipped to the World's Fair at New York. The first use of Lake Superior ore in a blast furnace occurred in Pennsylvania. The im- portant event is described in a letter to us from David Agnew, of Sharpsville, Mercer county, Pennsylvania, from which we quote as follows : The Sharon Iron Company, of Mercer county, Pennsylvania, about the year 1850 or 1851 purchased the Jackson mines, and, in expectation of the speedy completion of the Sault canal, com- menced to open them, to construct a road to the lake, and to build docks at Marquette, expending a large sum of money in these operations. The opening of the canal was, however, unexpectedly delayed until June, 1855. Anxious to test the working qualities of this ore, the Sharon iron Company brought, at great expense, to Erie, in the year 1853, about 70 tons of it, which was shipped by canal to Sharpsville nirnace, near Sharon, owned by David and John P. Agnew. The first boat-load of ore, on its receipt, was immediately used in the furnace, partly alone and partly in mixture with native ores, and the experiment was highly successful, the furnace work- ing well and producing an increased yield of metal, which was taken to the Sharon Iron works and there converted into bar iron, nails, etc., of very superior quality. The second boat-load of ore was also brought to Sharpsville, but, having been intended to be left at the Clay furnace, owned by the Sharon Iron Company, was returned and used at that establishment. In 1854, 1855, and 1856 Clay furnace continued the use of Lake Superior ore, most of it mixed with native ore, and used in all until August, 1856, about 400 tons. "Up to that date," as is stated by Mr. Frank Allen, its manager, " the working of it was not a success. In October, 1856, we gave the Clay furnace a general overhauling, put in new lining and hearth, and made material changes in the construction of the same, put her in blast late in the fall, and in a few days were making a beautiful article of iron from Lake Superior ore alone." The fuel used at Sharpsville and Clay furnaces was the block coal of the Shenango valley. After 1856 other furnaces in Pennsylvania and in other states began the regular use of Lake Superior ore. Until about 1877 the mining of iron ore in the Lake Superior region was confined to the territory in the immediate vi- cinity of Marquette. Since 1877, and particularly since 1879, a new iron-mining region has been developed in the northern part of Menominee county and the southern part of Marquette county, which takes its name from the former county. This region has proved to be very productive and the ore to be very desirable. Since the discovery of iron ore in the Lake Superior region there have been built on the upper peninsula, in the vicinity of the mines, twenty- three furnaces, of which ten have been abandoned. There have also been built at other points in the state of Michigan, to use Lake Superior ore, fifteen furnaces, of which none had been abandoned in 1880. All of these furnaces, with the exception of two at Marquette, were built to use char- coal, and the abandonment of many of them in the upper peninsula is attributable to the scarcity of timber for fuel. Michigan is, however, the first state in the Union to-day in the manufacture of charcoal pig iron, having twenty-eight furnaces of which all but one furnace at Marquette now use charcoal when in operation. The three bog-ore furnaces in Kalamazoo and Branch counties have been abandoned. There are now two active rolling mills in Michigan — ^the Eureka, formerly the Wyandotte, at Wyandotte, built in 1855, and the rolling mill of the Baugh Steam Forge Com- pany, at Detroit, built in 1877, the forge having been built in 1870. In 1871 a rolling mill was built at Marquette, which has since been abandoned. In 1872 a rolling mill was built at Jackson, in Jackson county, but it was torn down in 1879, and the machinery removed to the mill of the Springfield Iron Company at Springfield, Illinois. From the Marquette Mining Journal, edited by Mr. Swineford, we take the following statement in gross tons of the aggregate production of the Lake Superior iron-ore mines for each calendar year since the commencement of mining operations in the district. Tear. Gross tons. Year. Gross tons. 1856 and previous . . 1857 1858 1859 1860 1861 1862 1863 1864 1865. . . . . . 1866 1867 1868 86,319 26,646 22,876 68,832 114,401 114,258 124,109 203,965 247,069 193,768 296,713 405,60-l 610,522 639,007 1870. . 1871. . . 1872. ... 1873 . 1874. . 1875 . . 1876. 1877. . . 1878. . 1879 1880. . 1881 Total 859,607 813,984 948,563 1 ,196,234 936,488 910,840 993,311 1,025,129 1,126,093 1,414,182 1,987,698 2,321,315 1869 . . ... 15,321,128 The iron ores of Lake Superior that are not used in Michi- gan are mainly shipped to Ohio Pennsylvania, Illinois and Wisconsin. About one-third of all the pig iron that is now manufactured in the United States is made from these ores. Captain Ward was the most prominent of all the iron manu- facturers of Michigan, his enterprise in this respect extend- ing to other states than his own. He was born in Canada of Vermont parents, on December 25, 1811, and died sud- denly at Detroit, on January 2, 1875. In 1870 Michigan ranked eighth in the list of iron -producing states, and in 1880 its rankwas the same. Wisconsin. — In 1840 the census mentions a furnace in Milwaukee town," which produced three tons of iron in that year. This was doubtless a small foundry. In 1859 Lesley mentions three charcoal furnaces in Wisconsin Northwestern, or Mayville, at Mayville, in Dodge county forty miles northwest of Milwaukee, and five miles from the Iron ridge, built in 1853 by the owners of Mishawaka furnace in Indiana, and to which a foundry was added in 1858 ; Ironton, at Ironton, in Sauk county, built in 1857 by Jonas Tower ; and Black River, built in 1857 by a German company on the east bank of Black river, near the falls, in German county. Of these furnaces at least one, Ironton, was built to produce castings. A description of it in 1858 THE MINES, MINERS AND MIXING INTERESTS OF THE UNITED STATES. 67 says : " It is a small blast fiimace capable of producing about three tons of iron per day, and intended for the manufacture of stoves, castings, etc." The Ironton furnace still produces castings as well as pig iron. The Mayville furnace is also still in operation, having been rebuilt in 1872, but the Black River furnace has long been abandoned. There appear to have been no forges or bloomaries in Wis- consin in 1840, 1850, or 1860. The furnaces which have been mentioned were all that the state could boast until 1865, when a charcoal furnace at Iron Ridge, in Dodge county, was built by the Wisconsin Iron Company. This was soon followed by several other furnaces, some of which were built to use native ores and some to use Michigan ores from Lake Superior. The Appleton Iron Company built two furnaces at Appleton, in Outagamie county, in 1871 and 1872 ; C. J. L. Meyer built a furnace at Fond du Lac in 1864, but it had not been put in blast down to November 15, 1881 ; the Fox River Iron Company built two furnaces at West Depere, in Brown county, in 1869 and 1872 ; the Green Bay Iron Company built a furnace at Green Bay, in the same county, in 1870 ; and the National Furnace Com- pany built two furnaces at Depere, in the same county, in 1869 and 1872. All of these furnaces were built to use charcoal. In 1870 and 1871 the Milwaukee Iron Company built two large furnaces at Bay View, near Milwaukee, and in 1873 the Minerva Iron Company built a furnace at Milwaukee. These three furnaces were built to use mineral fuel and Lake Superior oras. A furnace called Richland was built in 1876 at Cazenovia, in Richland county, and was torn down in 1879. In 1880 there were fourteen fur- naces in the state, eleven of which used charcoal and three used anthracite coal and coke. Wisconsin had no rolling mill until 1868, when its first and thus far only mill was built at Milwaukee by the Milwaukee Iron Company, of which Captain E. B. Ward was a leading member. This was from the first a large mill, and was built to roll new iron rails. In 1874 a merchant bar mill was added. This mill and the two Bay View fiirnaces are now operated by the North Chicago Rolling Mill Company. Wisconsin advanced rapidly in the manufacture of iron in the decade between 1870 and 1880, and in the latter year it ranked sixth among the iron-producing states of the Union. In 1870 it was twelfth in rank. Missoviri. — ^Missouri has an iron history which ante- dates its admission into the Union in 1820. The celebrated iron district, in Iron and Saint Francois counties, which embraces Iron Mountain and Pilot Knob, contained a blast furnace before 1819, and possibly as early as 1812 or 1814, as we find in a prospectus of the Missouri Iron Company, written in 18.B7, the statement that "cannon balls, made from the Iron Mountain ore during the late war, after having been exposed for several years to the open atmosphere and rains, still maintained their original metallic lustre." The cannon balls referred to would probably be used for the defense of New Orleans. This furnace was called Spring- field, and was situated in the vicinity of Iron Mountain, and about forty miles from the Mississippi river, but its exact location we cannot learn. It was in Washington county as the county was then bounded. In 1858 Lesley says that " an old charcoal furnace was once in operation in township 33, range 4 north, half section 2 " of Iron county. This may have been Springfield furnace. John Perry and Colonel Ruggles, whether jointly or severally the authority from which we quote does not state, operated Springfield furnace " for more than fifteen years " prior to 1837. In that year the furnace was in operation, when it was called " a small furnace." A forge was then attached to it, and "a blooming forge" was promised "the ensuing year." Maramee furnace, in Phelps county, about sixty miles west of Iron Mountain, was built in 1826, and rebuilt many years afterwards. It is still standing but not in operation. At an early day a forge was added to the furnace, to convert its pig iron into bar iron, and this forge, with eight fires, is also still standing but not in operation, its product when last employed being charcoal blooms. In 1843 a rolling mill was added, but it was " abandoned after one year's trial, because of the sulphur in the stone coal obtained at a bank fourteen miles southeast." In the census of 1840 Missouri is credited with two furnaces — one in Crawford county, and one in Washington county. It is also credited with three forges in Crawford county and one in Washington county. The furnace in Crawford county was Maramee — Phelps county not having been then organized, and the forges in Crawford county were probably attached to Maramee fur- nace. The furnace in Washington county was Springfield, and the forge was doubtless the one attached to this furnace We do not hear of Springfield furnace and forge after this time. In 1836 the remarkable iron-ore mountains already mentioned — Iron Mountain and Pilot Knob — attracted the attention of some Misssouri capitalists, and in the fe.ll of that year the Missouri Iron Compay, with a nominal capital of $6,000,000, was formed to utilize their ores, the le^sla- ture chartering the company on December 31, 1836. In January, 1837, the company was fully organized under the presidency of Silas Drake, of Saint Louis, who was soon succeeded by J. L. VanDoren, of Arcadia, hut active work in the development of its property does not appear to have been undertaken until some years afterwards when a few furnaces were erected at the foot of the mountains by other companies. In 1846 a furnace was built at the southwest base of Little Iron Mountain, which was followed in 1850 by another furnace at the same place, and in 1864 by still another. In 1849 a furnace was built on the north side of Pilot Knob, which was followed in 1865 by another at the same place. These were all charcoal furnaces, and were exceptionally well managed in 1857, when they were visited and described by Charles B. Forney, of Lebanon, Pennsyl- vania. At that time two of the Iron Mountain ftirnaces and one of the Pilot Knob furnaces were blown with hot blast. In 1846 Moselle fiimace was built at Moselle, in Franklin county, and in 1859 a furnace was built at Irondale, in Washington county — ^both furnaces to use charcoal. These, with the furnaces previously mentioned, appear to be all that were built in Missouri prior to 1860. It will be observed that they were all built in the same part of the state — southwest of Saint Louis. The iron industry of Saint Louis appears to have had its commencement in 1850, when the Saint Louis, or Laclede, rolling mill was built. It was followed by the Missouri rolling mill, built in 1854 ; by the Allen rolling mill, built in 1855 ; by the Pacific rolling mill, built in 1856 ; and by Raynor's rolling mill, built in 1858. In 1880 there were seven rolling mills in Saint Louis, and there were no others in Missouri. One of these mills, the Vulcan, built in 1872, was connected with the Bessemer steel works of the Vulcan Steel Company and rolled steel rails. Two other mills rolled light rails and bar iron. The Bessemer works of the Vulcan Steel Company were built in 1875 and 1876. The state had no other steel works in 1880. Saint Louis had no blast ftirnaces until 1863, when the Pioneer ftirnace was built at Carondelet, to use coke. It was in blast in 1873, but in 1874 it was torn down and removed by the Pilot Knob Iron Company. In 1869 the Vulcan Iron Works, now called the Vulcan Steel Company, built two furnaces, which' were followed in 1872 by another furnace built by the same company. In 1870 and 1872 the South Saint Louis Iron Company built two furnaces ; in 1870 the Missouri Furnace Company built two ; and in 1873 Jupiter fiirnace was built, but it was not put in blast until 1880. These eight furnaces were all built to use Illinois or Connellsville coke and Missouri ores. In 1871 a large forge was built at South Saint Louis, called the Germania iron works, to make charcoal blooms from pig iron, but it has been idle for several years. In 1863 a forge was built at Kimmswick, in Jefferson county, and enlarged and remodeled in 1877 by the Peckham Iron Company, its product after the enlargement being charcoal blooms from the ore, It was in operation iii 1880. There were in 1880 ten charcoal furnaces and eight coke furnaces jn Missouri, and two charcoal furnaces were in course of erection. During the decade between 1870 and 1880 the iron industry of Missouri was subject to excep. tional vicissitudes, but in the latter year it was apparently placed upon a more substantial basis of prosperity than it had ever before occupied, and to-day its future is hopeful, although it has lost the prominent rant it held among iron- producing states in 1870. It then ranked sixth, but in 1880 it had fallen to the tenth place. The shipments of iron ore from Missouri to other states have for many years averaged over 100,000 tons annually. 68 THE MINES, MINEES AND MINING INTEEESTS OP THE UNITED STATES. Minnesota has one furnace, situated at Duluth, wMch was commenced in 1873 and not finished until 1880, when it was put in blast. Its projectors failed, and after passing through the hands of creditors it was purchased by the Du- luth Iron Company, its present owners. It uses charcoal as fuel and obtains its supply of ore from the Lake Superior mines in Michigan. Arkansas. — In 1857 a bloomary called Big Creek was built about six miles southwest of Smithville, in Lawrence county, Arkansas, by Alfred Sevens & Co. In 1858 Lesley describes it as " a bloomary with two fires and a hammer, making 250 pounds of swedged iron per day per fire, with a cold-blast in November, 1857, but has now a hot-blast, and is making perhaps 800 pounds, using 300 bushels of char- . coal to the ton of finished bars, made out of brown hematite ore." The bloomary was driven by water-power. It is not mentioned in the census of 1860 or 1870, and has been abandoned. We have no. knowledge of any other iron- manufacturing enterprise having ever existed in this state. Texas. — Texas does not appear to have had any iron enterprises of any kind before the civil war, but three small furnaces are reported to have been abandoned at the close of the war. They were probably built during its continuance to meet the necessities of the Confederate government. In 1869 a charcoal furnace was built at Jefferson, in Marion county, which was rebuilt in 1874. It was in operation in 1880, and was then the only furnace in the state. It is called Kelly flirnace, after Mr. G. A. Kelly, the president of the Jefferson Iron Company, by which it is owned. It uses brown hematite ore found in the neighborhood. Kansas had two rolling mills in operation in 1880, both of which were built to reroll rails. One of these, at Eose- dale, in Wyandotte county, three miles from Kansas City, is owned by the Kansas Eolling Mill Company. This mill was once in operation at Decatur, Illinois, where it was built in 1870, and whence it was removed to Eosedale in 1875. The other mill is located at Topeka, and was built in 1874 by the Topeka Eolling Mill Company. This mill was burned in April, 1881, but will probably be rebuilt. Nebraska. — Nebraska had one iron enterprise in opera- tion in 1880 — a rolling mill and cut-nail factory at Omaha, owned by the Omaha Iron and Nail Company. These works were first built at Dunleith, Illinois, in 1875 and 1876, and were removed to Omaha in 1879 and considerably enlarged. They have a capacity of 60,000 kegs of nails annuSly. They use old iron exclusively. Colorado. — In 1877 a rolling mill was removed by William Faux from Danville, Pennsylvania, to Pueblo, Colorado, and put in operation on March 1, 1878, its product being reroUed rails. In the same year it was removed to Denver. It was in operation in 1880, rolling bar iron as well as reroUing rails. This mill is now owned by the Colorado Coal and Iron Company. In 1880 this company commenced the erection of a large coke furnace at South Pueblo, in Colorado, which was put in blast on September 7, 1881. In the former year it commenced the construction of Bessemer steel works at the same place. These enter- prises are the pioneers of a very extensive and complete iron and steel establishment which has been projected by this company, and which is to embrace two blast furnaces, Bessemer steel works, and a rolling mill for rolling steel rails. Coke works on an extensive scale have already been built by the company at El Moro. The number of ovens now completed is over 200, and others are being erected. Colorado has apparently a great future before it in the production of iron and steel, all the elements necessary to their manufacture being found within its limits, Wyoming'. — The Union Pacific Railroad Company built a rolling mill to reroll rails at Laramie City, Wyoming terri- tory, in 1874, and put it in operation in April, 1875, It was in operation in 1880, Utah. — In 1859 Lesley reported a forge in Utah territory, " smelting iron ore found in the mountains east of Salt Lake City, but no reliable information could be obtained respect- ing it." It does not appear in the census of 1860. Dr. J, 8. Newberry writes that in 1880 he "visited the deposit of crystalline iron ore of Iron county, in the southern part of the territory. These ore beds have been long known, and were to some extent utilized by the Mormons in their first advent thirty years ago. The iron region referred to lies nearly 300 miles directly south of Salt Lake City.'' In 1874 the Great Western Iron Company, of which John W. Young was president, built a charcoal furnace at Iron City, in Iron county. It was in blast in that year and in the two follow- ing years, but has since been idle. This is a very small furnace, being only nineteen feet high and four feet wide at the boshes, with a daily capacity of five tons. The erection of a much larger furnace, also to use charcoal, was com- menced at Ogden City, Utah, in 1875, by the Ogden Iron Manufacturing Company, and was intended to use hematite and magnetic ores found in the neighborhood. The furnace had not been put in blast at the close of 1880, and was not then entirely completed. The same company commenced to build a rolling mill at Oregon City in 1875, which had not been completed in 1880. California. — California has for many years had a very complete rolling mill at San Francisco, owned by the Pacific Eolling Mill Company. It was first put in operation on July 25, 1868. It rolls rails, bar iron, angle iron, shafting, etc. It was in operation in 1880, and has always been well employed. The California Iron Company commenced in 1880 the erection of a charcoal furnace at Clipper Gap, in Placer county, where iron ore had been discovered, and in the same year the Central Pacific Eailroad Company com- menced the erection at Sacramento City of a small mill to roll bar iron. The Clipper Gap furnace was successfully put in blast in April, 1881, and the first cast was made on the 24th of that month, California may have had a forge or two while it was Mexican territory, but it is doubtful whether its Mexican inhabitants ever engaged in the manufacture of iron. Oregon, — At Oswego, in Clackamas county, Oregon, a furnace to use charcoal was built in 1866 and enlarged in 1879. It was in blast in 1880, when it produced 5,000 net tons of pig iron. Its charcoal is made exclusively from the fir tree. Washington Territory. — A furnace at Irondale, near Port Townsend, in Jefferson county, Washington territory, was built in 1880, and put in blast early in 1881. It is a small furnace, and was built to make charcoal pig iron from Puget sound bog ore mixed with Texada Island magnetic ore. It is owned by the Puget Sound Iron Company, of Port Townsend, The company is said to contemplate the erection of another blast furnace on Texada Island, which is in British Columbia, The First Iron Works in Canada. — ^A brief notice of the first iron works in Canada seems proper to be insert- ed here, more especially as these works are still in operation. They are known as the Forges of the St, Maurice, and are located near Three Elvers, in the province of Quebec. Mr. A, T. Freed, one of the editors of the Hamilton (Ontario) Spectator, informs us that iron ore in the vicinity of Three Eiyers was discovered as early as 1666. In 1685 the Mar- quis de Denouville sent to France a sample of the ore at Three Elvers, which the French ironworkers found to be "of good quality and percentage." In 1672 the Count de Fron- tepac reported that he had begun to mine the ore at Three Elvers. He strongly urged the establishment of forges and a foundry. But no effort to establish iron works at this place appears to have been made until the next century, when the St. Maurice works were undertaken, Dr, T, Sterry Hunt, of Montreal, has supplied us with the following brief history of these works. "King Louis XIV, gave a royal license in 1730 to a company to work the iron ores of St, Maurice and the vicinity, and advanced 10,000 livreg for aid in erecting the furnace, etc. No work being done he took back the license, and in 1735 granted it to a new com- pany, which received 100,000 livre.s in aid and in 1737 built a blast furnace. In 1 843, however, the works reverted to the crown, and were worked for the king's profit. He then sent out from France skilled workmen, who rebuilt, in part at least, the blast furnace as it now stands, and erected a Walloon hearth, which is still in use, for refining. The works became the property of the British Crown at the conquest, and were at first rented to a company and afterwards sold. Smelting has been carried on at this place without interruption to the present time, the bog ores of the region being exclusively used. Three tons of ore make one ton of iron. There seems to be no doubt that the stack is the one built in 1737, and is still in blast. It is 30 feet high, and the internal diameter at the hearth is 24 feet, at the boshes 7 feet, and at the throat 3i feet. There are two tuyeres, and the blast is cold, with a pressure of one pound. The daily production of iron is four tons, and the eon- sumption of charcoal is l^O bushels, (French.) of about 12 pounds each, per toa of iron. The metal was formerly used in the district THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 69 for ordinary castings, but is now in great demand for car wheels. A very little is, however, refined in the Walloon hearth, and is esteemed by the blaclismiths for local use. The analysis of a sam- ple of the gray pi^ of St. Maurice made by me in 1868 gave : Phosphorus, .450 ; silicon, .860 ; manganese, 1.240 ; graphite, 2.820 ; carbon combined, 1.100." In addition to the above information from Dr. Hunt, we find some facts of interest concerning the St. Maurice iron works in Peter Kalm's Travels into North America, written in 1749. " The iron worli, which is the only one in this country, lies three miles to the west of Trois Rivieres. Here are two great forges, besides two lesser ones to each of the greater ones, and under the same roof with them. The bellows were made of wood, and every- thing else as it is in Swedish forges. The melting ovens stand close to the forges, and are the same as ours. The ore is got two French miles and a half from the iron worlis, and is carried thither on sledges. It is a kind of moor ore, which lies in veins, within six inches or a foot from the surface of the ground. Each vein is from six to eighteen inches deep, and below it is a white sand. The veins are surrounded with this sand on both sides, and covered at the top with a thin mould. The ore is pretty rich and lies in loose lumps in the veins, of the size of two fists, though there are a few which are eighteen inches thick. These lumps are full of holes, which are filled with ochre. The ore is so soft that it may be crushed betwixt the fingers. They make use of the grey limestone, which is broke in the neighborhood, for promoting fusibility of the ore; to that purpose they likewise employ a clay marble, which is found near this place. Charcoals are to be had in great abundance here, because all the country round this place is covered with woods which have never been stirred. The charcoals from evergreen trees, that is from tlie fir kind, are best for the forge, but those of deciduous trees are best for the smelting oven. The iron which is here made was to me described as soft, pliable, and tough, and it is said to have the quality of not being attacked by rust so casUy as other iron; and in tliis point there appears a great difference between the Spanish iron and this in shipbuilding. This iron work was first founded in 1737, by private persons, who afterwards ceded it to the king; they cast cannon and mortars here, of different sizes, iron stoves, which are in use all over Canada, kettles, etc., not to mention the bars which are made here. They have like- wise tried to make steel here, but cannot bring it to any great perfection, because they are unacquainted with the manner of preparing it." Mr. Freed says that the French company which esta- blished the St. Maurice iron works in 1737 was known as Ougnet et Cie. He also says that there was a French garri- son at Trois Eivieres at the time, and that the soldiers were the principal workmen. He sends us a copy of a report made in 1752 to M. Bigot, Intendant of New France, re- siding at Quebec, by M. Franquet, who had been instructed to visit and examine the St. Maurice works. From this report the following extract is taken : On entering the smelting forge I was received with a customary ceremony ; the workmen moulded a pig of iron about 15 feet long for my especial benefit. The process is very simple ; it is done by plunging a large ladle into the liquid-boiling ore and emptying the material into a gutter made in the sand. After this ceremony, I was shown the process of stove moulding, which is also a very simple but rather intricate operation. Each stove is in six pieces, which are separately moulded ; they are fitted into each other and form a stove about three feet high. I then visited a shed where the workmen were moulding pots, kettles, and other hollow-ware. On leaving this part of the forge we were taken to the hammer forge, where bar iron of every kmd is hammered out. In each de- partment of the forges the workmen observed the old ceremony of brushing a stranger's boots, and in return they expect some monej to buy liquor to drink the visitor's health. The establishment is very extensive, employing upward of 180 men. Nothing is con- sumed in the furnaces but charcoal, which is made in the imme- diate vicinity of the post. The ore is rich, good, and tolerably clean. Formerly it was found on the spot; now the director has to send some little distance for it. This iron is preferred to the Span- ish iron, and is sold off in the king's stores in Quebec. Still quoting from Mr. Freed, we learn that in 1815 a vis- itor to the St. Maurice works wrote as follows: "The foun- dry itself is replete with convenience for carrying on an extensive concern ;■ furnaces, forges, casting-houses, work- shops, etc. The articles manufactured consist of stoves of all descriptions that are used throughout the provinces, large caldrons or kettles that are used for making potashes, machinery for mills, with cast or wrought iron-work of all denominations. There are likewise large quantities of pig and bar iron exported. The number of men employed is from 250 to 300." The works remained in the ownership of the British government until 1846, when they were sold to Henry Stuart. The latest information concerning them is contained in a report to the Dominion Parliament in 1879, which says that they were then owned by F. Macdou- gall & Son, of Three Rivers, and were using bog ore and making good iron with charcoal. " The first furnace was erected in 1737 ; still running ; capacity four tons." — Ofmpiledjram James M. Swank's Report on Iron and Bteel, Tenth Census of the U.S. THE MANUFACTURE OF IRON WITH ANTHRACITE COAL. THE details given abore of the early iron history of the Atlantic states of the Union relate almost entirely to the manufacture of charcoal iron, no other fuel than charcoal having been used in American blast furnaces until about 1840. The period of our iron history prior to 1840 may therefore very properly be styled the charcoal era. The line which separates the charcoal era of our iron his- tory from the era which succeeded it, and which may be said to still continue, is marked by the introduction of anthracite and bituminous coal in the manufacture of pig iron. This innovation at once created a revolution in the whole iron industry of the country. Facilities for the manufacture of iron were increased; districts which had been virtually closed to the manufacture because of a local scarcity of charcoal were now opened to it; and the cheapening of prices, which was made possible by the increased production and consequent increased competition, served to stimulate consumption. A notable efiect of the introduction of min- eral fuel was that, while it seriously affected the production of charcoal pig iron in States which, like Pennsylvania, pos- sessed the new fuel, it did not injuriously affect the produc- tion of charcoal pig iron in other States. Some of these States, like Michigan, which scarcely possessed an iron indus- try of any kind in 1840, now manufacture large quantities of charcoal pig iron. The country at large now annually makes more charcoal pig iron than it did in 1840 or in any preceding year. The introduction of mineral fuel did not, therefore, destroy our charcoal iron industry, but simply added to our resources for the production of iron. This introduction, however, marked such radical changes in our iron industry, and so extended the theatre of this industry, that we are amply justified in referring to it as a revolu- tion, and as one which ended the distinctive charcoal era. Of the two forms of mineral fuel — anthracite and bitu- minous coal — anthracite was the first to be largely used in American blast furnaces, and for many years after its adapta- bility to the smelting of iron ore was established it was in greater demand for this purpose than bituminous coal. In recent years the relative popularity of these two fuels for blast furnace use has been reversed. The natural difficulties in the way of the successful introduction of anthracite coal in our blast furnaces were enhanced by the fact that, up to the time when we commenced our experiments in its use, no other country had succeeded in using it as a furnace fuel The successive steps by which we were enabled to add the. manufacture of anthracite pig iron to that of charcoal pig iron will be presented in chronological order. In 1840 Jesse B. Quinby testified, in the suit of Farr & Kunzi against the Schuylkill Navigation Company, that in 1815 he used anthracite coal for a short time at Harford furnace, Maryland, mixed with one-half charcoal. Between 1824 and 1828 Peter Ritner, whose brother, Joseph Ritner, after- wards became Governor of Pennsylvania, was successful for a short time in using anthracite coal in a charcoal furnace in Perry county, Pennsylvania, mixed with charcoal. In 1826 the Lehigh Coal and Navigation Company erected near Mauch Chunk, in Pennsylvania, a smalt furnace intended to use anthracite coal in smelting iron ore. The enterprise was not successful. In 1827 unsuccessful experiments in smelting iron ore with anthracite coal from Rhode Island were made at one of the small blast furnaces in Kingston, 70 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. Plymoutli county, Massachusetts. In 1827 and 1828 a simi- lar failure in tlie use of anthracite coal took place at Vizille, in France. All of these experiments failed because the blast used was cold. The hot-blast had not then been invented. In 1828 James B. Neilson, of Scotland, obtained a patent for the use of hot air in the smelting of iron ore in blast furnaces, and in 1829 pig iron was made in several Scotch furnaces with the apparatus which he had invented. But the coal used was bituminous. It was not until 1836 that the smelting of iron ore with anthracite coal by means of the hot-blast invented by Neilson was undertaken in Great Britain. In the mean time the application of the hot-blast to anthracite coal in American furnaces was successfully experimented upon by an enterprising German- American, the Rev. Dr. Frederick W. Geissenhainer, a Lutheran clergyman of New York city. A copy in his own hand- writing of a letter written by him in November, 1837, to the commissioner of patents, gives some interesting and valuable details concerning his experiments. In this letter, which we have before us, he says : " I can prove that, in the month of December, 1830, and in the months of January, Febru- ary, and March, 1881, I had already invented and made many successful experiments as well with hot air as with an atmospheric air blast to smelt iron ore with anthracite coal in my small experimenting furnace here in the city of New York." On the 5th of September, 1831, Dr. Geissenhainer filed in the patent office at Washington an account of his invention for which he claimed a patent. On the 19th of December, 1833, a patent was granted to him for a " new and useful improvement in the manufacture of iron and steel by the application of anthracite coal." From the long and re- markably clear and learned specification by the Doctor, which accompanied the patent, we learn that he discovered that iron ore could be smelted with anthracite coal by applying " a blast, or a column, or a stream or current of air in or of such quantity, velocity, and density or compres- sion as the compactness or density and the continuity of the anthracite coal requires. The blast may be of common atmospheric or of heated air. Heated air I should prefer in an economical point of view." The Doctor distinctly dis- claims in his specification " an exclusive right of the use of heated air for any kind of fuel," from which it is to be in- ferred that he had full knowledge of Neilson's experiments with hot air in Scotland. He appears to have relied for suc- cess largely upon the efiect of a strong blast. The patent having been granted, Dr. Geissenhainer pro- ceeded to build a furnace for the practical application of his invention. This was Valley furnace, situated on Silver creek, in Schuylkill county, Pennsylvania, about ten miles northeast of Pottsville. In August and September, 1836, he was successful in making pig iron at this furnace exclusively with anthracite coal as fuel. His own testimony on this point is given in the letter from which we have already quoted. The blast used varied from 3 J to 3}, to 3, and to 2| pounds to the square inch. That the furnace did not con- tinue to make iron after the fall of 1836 is explained by Dr. Geissenhainer to have been due to an accident to its machi- nery. He adds: "My furnace would have been put in operation again long before this time, with strong iron ma- chinery and a hot-air apparatus, had I not been prevented by the pressure of the times and by a protracted severe sick- ness from bestowing my attention to this matter. The draw- ings for the iron machinery and for the hot-air apparatus are already in the hands of Messrs. Haywood & Snyder, in Pottsville, who are to do the work." The blast used in August and September, 1836, was heated. Before the Doc- tor's plans for improving his furnace were completed he was called to another world. He died at New York on the 27th of May, 1838, aged sixty-six years and eleven months. He was born at Muhlberg, in the Electorate of Saxony, in 1771, and came to this country when about eighteen years old. His remains rest in the family burial vault in the Lutheran cemetery in Queen's county, New York. Prior to his erec- tion of Valley furnace. Dr. Geissenhainer had been engaged in the development of the iron and coal resources of Penn- sylvania. As early as 1811 he was associated with Peter Karthaus, of Baltimore, in the mining of bituminous coal in Clearfield county, and a few years later in the ownership of | a charcoal furnace in that county. For two or three years before 1830 he owned and operated a small charcoal furnace in Schuylkill county, and it was near this furnace that he afterwards built Valley furnace. Attached to the charcoal furnace was a puddling furnace. He was the pioneer in the development of the Silver creek anthracite coal mines, the projector of the Schuylkill Valley Railroad, and the sole owner of the Silver Creek Railroad. Dr. Geissenhainer was, as will be seen, a man of great enterprisa His memory as the first successful manufacturer of pig iron with anthracite coal and the hot-blast is entitled to greater honor than it has yet received. On the 28th of September, 1836, when Dr. Geissenhainer's Valley furnace was successfully making pig iron, and almost three years after the Doctor had obtained a patent for his invention, George Crane, the owner of sev- eral furnaces at Yniscedwin, in South Wales, obtained a patent from the British government for the application of the hot-blast to the smelting of iron ore with anthracite coal. On the 7th of February, 1837, he successfully commenced the use of anthracite with the hot-blast at one of his furnaces, obtaining 36 tons a week. In May of that year Solomon W. Roberts, of Philadelphia, visited his works and witnessed the complete success of the experiment, which was the first successful experiment with anthracite coal in a blast furnace in Europe. Mr. Crane endeavored to obtain a patent in this country for his application of the hot-blast to anthracite coal in the blast furnace, but was unsuccessful. Dr. Geissenhainer's invention being accorded priority. His patent, which was only for the United States, was purchased from his execu- tors in 1838 by Mr. Crane, who, in November of that year, patented some additions to it in this country. The patents could not be enforced here, but Mr. Crane compelled the ironmasters of Great Britain to pay him for the use of his invention. Dr. Geissenhainer never attempted to enforce his patent. The consideration which his executors received from Mr. Crane was $1,000 and the privilege of erecting, free of royalty, fifteen furnaces for the use of anthracite coal with the hot-blast. The following advertisement by Mr. Crane's agents in this country we take from a Philadelphia newspaper published in December, 1839 : Anthracite Ieon. — The subscribers, agents of George Crane, Esq., are prepared to grant licenses for the manufacture of iron with anthracite coal under the patent granted to Mr. Crane by the United States, for smelting iron with the above fuel, in addition to which Mr. Crane holds an assignment of so much of the patent granted to the late Reverend Dr. Geissenhainer as pertains to mak- ing iron with anthracite coal. The charge will be 25 cents per ton on all thus manufactiu'ed. It has been completely successful both in Wales and at Pottsville, one furnace at the latter place yielding an average product of 40 tons per week of excellent iron. All per- sons are cautioned against infringing upon either of the above patents. Any application of hot-blast m the smelting of iron ore with anthracite coal, without a license, will be an infringement and will be treated accordingly. Apply to A. & G. RAXSTON & CO., dee 9— Im 4 South Front st. Mr. Crane was born about 1785 at Bromsgrove, in Worces- tershire, England, whence he removed in 1824 to Wales. Two interesting experiments in the use of anthracite coal in the blast furnace were made in this country about the time that Dr. Geissenhainer was successful with his experiment at Valley furnace. In 1836 and 1837 John Pott experi- mented at Manheim furnace, at Cressona, in Schuylkill county, with anthracite coal as a fuel for smelting iron ore. He first used a mixture of anthracite coal and charcoal with cold-blast. The results accomplished were so encouraging that he added a hot-blast and gradually reduced the propor- tion of charcoal until only anthracite was used. This he used alone and successfully for a short time. But the blast was too weak, and the furnace was not long in operation. Before necessary improvements could be made it was destroyed by a freshet. In 1837 Jarvis Van Buren, acting for a company, built a furnace at South Easton, in Northampton county, for the purpose of experimenting with anthracite coal. Early in 1838 he was successful in making 20 tons of pig iron, when further operations were stopped in consequence of the blast being too weak. We are not informed whether it was hot or cold. It is claimed that a successfiil experiment in the manufac- THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 71 ture of pig iron with anthracite coal was made in 1837 by a Mr. Bryant, in a foundry cupola at Manayunk, near Philadel- phia. The blast used was produced by " wooden bellows." A few tons of the iron made were used by Parke & Tiers, the owners of the foundry, " and proved to be of good gray quality and of uncommon strength." The experiment was conducted under the auspices of this firm and of Mr. Abraham Kunzi, of the firm of Farr & Kunzi, manufactu- ring chemists, of Philadelphia. Wecannot learn whether the blast was hot or cold. The record which we shall now give of the successful use of anthracite coal in American furnaces, after Dr. Geissenhainer and George Crane had established the practicability of such use, will embrace only a few of the early anthracite fiirnaces, and this we condense fi'om Walter R. Johnson's Notes on the Use of Anthracite, published in 1841, and from William Firmstone's Sketch of Early Anthra- cite Furnaces, published in the third volume of the Trans- action of the American Institute of Mining Engineers. Late in 1837 Joseph Baughman, Julius Guiteau, and Henry High, of Reading, experimented in smelting iron ore with anthracite coal in the old furnace of the Lehigh Coal and Navigation Company at Mauch Chunk, using about 80 per cent, of anthracite. The results were so encouraging that they built a small water-power furnace near the Mauch Chunk weigh-lock, which was completed in July 1838. Blast was applied to this furnace on August 27, and discon- tinued on September 10, the temperature being heated up to about 200° Fahrenheit. The fuel used was mainly anthra- cite, but not exclusively. A new heat apparatus was pro- cured, placed in a brick chamber at the tunnel head, and heated by a flame therefrom. Blast was applied late in November, 1838, the fiiel used being anthracite exclusively, and " the furnace worked remarkably well for five weeks," up to January 12, 1839, when it was blown out for want of ore. Some improvements were made, and on July 26, 1839, the furnace was again put in blast, and so continued until November 2, 1839. Mr. F. 0. Lowthorp, of Trenton, was one of the partners at this time. For " about three months " no other fuel than anthracite was used, the temperature of blast being 400'' to 600°. About 100 tons of iron were made. The next furnace to use anthracite was the Pioneer, built in 1837 and 1838 at Pottsville, by William Lyman, of Boston, under the auspices of Burd Patterson, and blast was unsuc- cessfully applied on July 10, 1839. Benjamin Perry then took charge of it, and blew it in on October 19, 1839, with complete success. This furnace was blown by steam-power. The blast was heated in ovens at the base of the furnace, with anthracite, to a temperature of 600°. The product was about 28 tons a week of good foundry iron. The furnace continued in blast for some time. A premium of $5,000 was paid by Nicholas Biddle and others to Mr. Lyman, as the first person in the United States who had made anthracite pig iron continuously for one hundred days. Danville fiirnace, in Montour county, was successfully blown in with anthracite in April, 1840, producing 35 tons of iron weekly with steam-power. Roaring Creek furnace, in Montour county, was next blown in with anthracite on May 18, 1840, and produced 40 tons of iron weekly with water-power. A charcoal furnace at Phoenixville, built in 1837 by Reeves, Buck & Co., was blown in with anthracite on June 17, 1840, by William Firmstone, and produced from 28 to 30 tons of pig iron weekly with water-power. The hot-blast stove, which was planned and erected by Julius Guiteau, of the Mauch Chunk furnace, was situated on one side of the tunnel-head, and heated by the name of the furnace. This furnace continued in blast until 1841. Columbia furnace, at Danville, was blown in with anthracite by Mr Perry on July 2, 1840, and made from 30 to 32 tons of iron weekly, using steam-power. The next furnace to use anthracite, and the last one we shall mention, was built at Catasauqua, for the Lehigh Crane Iron Company in 1839 by David Thomas, who had been associated with Mr. Crane in his experiments at Yniscedwin. It was success- fully blown in by him on the 3d of July, 1840, and produced 50 tons a week of good foundry iron, water power being used. This furnace was in active use until 1879, when it was torn down. Mr. Firmstone says that "with the erection of this furnace commenced the era of higher and larger furnaces and better blast machinery, with consequent improvements in yield and^ quality of iron produced. David Thomas who died in the first half of June, this year — 1882 — ^was the oldest ironmaster in the United States in length of service, and, next to Peter Cooper, the oldest in years. He was born on November 3, 1794, at a place called, in Eng- lish, Grey House, within two and a half miles of the town of Neath, in the county of Glamorgan, South Wales. He landed in the United States on June 5, 1839, and on July 9 of that year he commenced to build the furnace at Cata- sauqua. Father Thomas's character and services to the American iron trade are held in high honor by every American iron and steel manufacturer. William CuUen Bryant and Mr. Thomas were born on the same day. In 1835 the Franklin Institute, of Philadelphia, offered a premium of a gold medal " to the person who shall manu- facture in the United States the greatest quantity of iron from the ore during the year, using no other fuel than anthracite coal, the quantity to be not less than twenty tons," but we cannot learn that it was ever awarded to any of the persons who were instrumental in establishing the manufacture of anthracite pig iron in this country. The discovery that anthracite coal could be successfully used in the manufacture of pig iron gave a great impetus to the iron industry in Maryland, New Jersey, and New York as well as in Pennsylvania. In 1840 there were only six fiimaces in the United States which used anthracite coal, and they were all in Pennsylvania. The first anthracite furnace out- side of Pennsylvania was built at Stanhope, New Jersey, in 1840 and 1841, by the Stanhope Iron Company, and it was successfully blown in on April 5, 1841. On the 1st of April, 1846, there were forty-two ftimaces in Pennsylvania and New Jersey which used anthracite coal as fuel, their annual capacity being 122,720 gross tons. In 1856 there were 121 anthracite furnaces in the country which were either " run- ning or in running order " — ninety-three in Pennsylvania, fourteen in New York, six in Maryland, four in New Jersey, three in Massachusetts, and one in Connecticut. Soon after 1856 many other furnaces were built to use anthracite as fuel. Although the revolution to which we have referred properly dates from the first successftil use of anthracite coal in the blast furnace, this ftiel had been previously used in a small way in our country in other ironmaking operations. Its use in these operations became general about the time when pig iron Was made with it. The first use of anthracite coal in connection with the manufacture of iron in the United States dates from 1812, in which year Colonel George Shoemaker, of Pottsville, Pennsylvania, loaded nine wagons with coal from his mines at Centreville, and hauled it to Philadelphia, where with great difficulty he sold two loads at the cost of transportation and gave the other seven loads away. He was by many regarded as an impostor for attempt- ing to sell stone to the public as coal. Of the two loads sold, one was purchased by White & Hazard, for use at their wire works at the Falls of Schuylkill, and the other was purchased by Malin & Bishop, for use at the Delaware County rolling mill. By the merest accident of closing the fiirnace doors Mr. White obtained a hot fire' from the coal, and from this occurrence, happening in 1812, we may date the first successful use of anthracite coal in the manufacture of iron in this country and in other American manufactures. At both the establishments mentioned it was used in heating their furnaces. Previous to this time bituminous coal from Virginia and Great Britain had been relied upon for manu- facturing purposes in the Atlantic States in all cases where wood was not used. In the latter part of 1823 the Boston Iron Company, owning the Boston iron works, obtained a full cargo of Lehigh anthracite coal, for use in heating iron to be rolled in its mill, and for smith-work. A short time pre- vious to this transaction, and in the same year, Cyrus Alger, of South Boston, obtained a lot of about thirty tons of Lehigh coal, which he used in a cupola for melting iron for castings. Anthracite coal for the generation of steam was first used in this country in January, 1825, under the boilers of the roll- ing mill at Phoenixville, of which Jonah and George Thompson, of Philadelphia, were the proprietors. It is also claimed that, two years later, in 1827, the first use of anthra- cite coal in the puddling ftirnace in this country was at the same rolling mill, Jonah and George Thompson still being the proprietors. The use of anthracite for puddling did not become general until about 1840. In 1839 anthracite coal 72 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. was used in puddling at the Boston iron works by Ralph Crooker, the superintendent. About 1836 Thomas and Peter Cooper, brothers, used anthracite in a heating furnace at their rolling mill in Thirty-third street, near Third avenue. New York, and about 1840 they began to puddle with anthracite. In April, 1846, there were twenty-seven rolling mills in Pennsylvania and New Jersey which used anthracite coal. The following notice of the success of the Messrs. Thomp- son in the use of anthracite coal for the production of steam appeared at the time in a newspaper published at West Chester, Pennsylvania. "We understand that the Messrs. Thompson, at the Phoenix nail-works, on French creek, have fully succeeded in constructing a furnace for a, steam engine calculated for the use of anthracite coal, and in dis- covering a mode by which this fuel may be most advanta- geously applied to that important purpose. We would heartily congratulate the eastern section of our state upon this valuable discovery. Nothing within our knowledge has occurred of recent date which can have a more auspi- cious influence upon our manufacturing interests." — CotnpiUdfrom James M. SwanJe^a Report on Iron and Sleel, Tervth Cenmsofthe U. S. THE MANUFACTURE OF IRON WITH BITUMINOUS COAL. IT is remarkable that the introduction of bituminous coal in the blast furnaces of this country should have taken place at so late a day in our history, and within the memory of men who are not yet old. Bituminous coal had been discovered in the United States long before any attempt was made to use it in our blast furnaces, and Great Britain had taught us while we were still her colonies that it could be so used. In 1735 Abraham Darby, at his furnace at Coalbrookdale, in Shropshire, had successfully made pig iron with coke as fuel ; in 1740 a coke furnace was built at Pontypool, in Monmouthshire; and in 1796 charcoal furnaces had been almost entirely abandoned in Great Britain. Our delay in following the example of the mother country may be variously explained. There was a lack of transportation facilities for bringing iron ore and coke together ; not all of the bituminous coal that had been discovered was suitable for making good coke ; the manu- facture of coke was not well understood ; the country had an abundance of timber for the supply of charcoal ; and, finally, a prejudice existed in favor of charcoal pig iron and of bar iron hammered in charcoal forges. The introduction about 1840 of bituminous coal as a fuel in American blast furnaces, was naturally preceded by many experiments in its use, which were attended with varying success, but none of them with complete success. It appears to be mathematically certain that down to 1835 all these experiments had been unsuccessful, as in that year the Franklin Institute, of Philadelphia, oflered a premium of a gold medal " to the person who shall manufacture in the United States the greatest quantity of iron from, the ore during the year, using no other fuel than bituminous coal or coke, the quantity to be not less than twenty tons." The Institute would not have been likely to make this offer if even so small a quantity as twenty tons of pig iron had been made in one furnace with bituminous coal, either coked or uncoked. In a report by a committee of the Sen- ate of Pennsylvania, of which Hon. S. J. Packer was chair- man, read in the Senate on March 4, 1834, it was stated that " the coking process is now understood, and our bituminous coal is quite as susceptible of this operation, and produces as good coke, as that of Great Britain. It is now used to a considerable extent by our iron manufacturers in Centre county and elsewhere." It is certain that, at the time this re- port was written, coke could not have been used in blast fur- naces in any way than as a mixture with charcoal, and then only experimentally. The offer of the gold medal by the Franklin Institute doubtless assisted in stimulating action upon a subject which had already attracted much attention. In the year in which the premium was offered, that accom- plished furnace manager, William Firmstone, was successful in making good gray forge iron for about one month at the end of a blast at Mary Ann furnace, in Huntingdon county, Pennsylvania, with coke made from Broad Top coal. This iron was taken to a forge three miles distant and made into blooms. Mr. Firmstone did not claim the medal. He may not have known that a premium had been offered for the achievement which he undoubtedly accomplished. In a pamphlet published in April, 1836, Isaac Fisher of Lewis- town, Pennsylvania, stated that " successful experiments have lately been tried in Pennsylvania in making pig iron with coke." It is probable that Mr. Fisher had in mind Mr. Firmstone's experiment. William Firmstone was born at Wellington, in Shropshire, England, on October 19, 1810. When quite a young man he was manager at the Lays Works, near Dudley, which were then owned by his uncles, W. & G. Firmstone. He emigrated to the United States in the spring of 1885. After filling many responsible positions in connection with the manufacture of pig iron, he died at his residence near Easton, on September 11, 1877, and is buried in the cemetery at Easton. He was one of the first to introduce the hot-blast in the United States, having successfully added this improvement to Vesuvius furnace, in Lawrence County, Ohio, in 1836. In 1839 he added a hot-blast to Karthaus furnace, in Pennsylvania. In 1836 or 1837, F. H. Oliphant, a skillful iron master, made at his furnace called Fairchance, near Uniontown, Fayette County, Pennsylvania a quantity of coke pig iron in excess of twenty tons, and probably in excess of 100 tons. He did not, however, long continue to make coke iron, and resumed the manufacture of iron with charcoal. Mr. Oliphant had heard of the offer of the gold medal, and in a letter to the Institute, dated October 3, 1837, he modestly referred to his success in making pig iron with coke, and suggested that possibly he was entitled to the pre- mium. Accompanying his letter was a box of pig iron and the raw materials of ite manufacture. We do not learn that he ever received the medal, or that anybody received it. Between 1836 and 1839 other attempts were made at several furnaces in Pennsylvania to use coke, but the experi- ments were unsuccessful or unfortunate. The legislature of Pennsylvania passed an act on June 16, 1836, "to encourage, the manufacture of iron with coke or mineral coal," which authorized the organization of companies for the manu- facture, transportation, and sale of iron made with coke or coal. At Farrandsville, six miles north of Lock Haven, in Clinton county, half a million dollars was sunk by a Boston company in a disastrous attempt to smelt the neighboring ores with coke, and to establish other iron and mining enterprises. This company had commenced operations in the mining of coal as early as 1833. The furnace was blown in the summer of 1837, and ran probably until 1839. About 3,500 tons of iron were made, but at such great cost, owing to the impurity of the coal and the distance of the ore, that further efforts to make iron with coke were abandoned. At Karthaus, in Clearfield county, the Clearfield Coal and Iron Company, composed of Henry 0. Carey, Burd Patterson, John White, and others, succeeded in 1839, under the man- agement of William Firmstone, in making pig iron with coke in a furnace which was built in 1836 by Peter Ritner (brother of Governor Ritner) and John Say, but at the close of the year the whole enterprise was abandoned, owing to the lack of proper transportation facilities. A furnace at Frozen run, in Lj^coming county, made some pig iron with coke in 1838, but in 1839 it was using charcoal. The fur- naces at Farrandsville and Karthaus were both supplied with hot blasts— the former in 1837 and the latter in 1839. The apparatus for that at Farrandsville was made at Glas- gow, and was the best then known. The first notable' success in the use of bituminous coal in the blast furnace in this country was achieved at three furnaces in western Maryland. Lonaconing furnace, in the Frostburg coal basin, on George's creek, eight miles northwest of Frostburg . in Alleghany county, was built in 1837 by George's Creek Company, to use coke, and in June 1839, it was making about 70 tons per week of good foundry iron. Alexander says that " the air was heated by stoves placed near the tuyere arches, and attained a temperature of 700 degrees Fahrenheit." The furnace was blown by an engine of 60- z Q O O > r z m m X 13 r O CO o z THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 73 horse power. In the same coal basin, on the south branch of Jenning'a run, nine miles northwest of Cumberland, two large blast furnaces were built in 1840 by the Mount Savage Company to use the same fuel. These furnaces were for several years successfully operated with coke. But the use of coke did not come rapidly into favor, and many experi- ments with it were attended with loss. It was not until after 1850 that its use began to exert an appreciable in- fluence upon the manufacture of pig iron. In 1849 there was not on-e coke furnace in Pennsylvania in blast. Thus far coke had not noticeably contributed to the revolution to which we have referred in the preceding chapter. But in 1856 there were twenty-one furnaces in Pennsylvania, and three in Maryland which were using coke. After 1856 the use of this fuel rapidly increased in Pennsylvania, and was extended to other states. While the effort was being made in a few localities in Pennsylvania and Maryland to introduce the use of coke in the blast furnace, attention was also directed to the pos- sibility of using uncoked coal for the same purpose. Alexander says that the proprietors of Lonaconing furnace, in western Maryland, used raw coal before 1840. He leaves the reader to infer that it was successfully used, but he prob- ably wrote from imperfect information. Some unsuccess- ful experiments we're made with raw coal in Clarion county, Pennsylvania, about' 1840. In the sketch of Mercer county, Pennsylvania, in Day's Historical Collections, printed in 1843, it is stated that " in the vicinity of Sharon, on the Pittsburgh and Erie canal, exists a most valuable bed of coal of peculiar quality, between anthracite and bituminous, without the least sulphur. It has been tried successfiilly for smelting iron in a common charcoal furnace." It is not certain that the furnace referred to was in Mercer county. The coal mentioned is now classed among bituminous varieties. At Arcole furnace, in Lake county, Ohio, operated by Wilkeson & Co., raw coal from Greenville, Mercer county, Pennsylvania, was experimented with about 1840. John Wilkeson, one of the owners of the furnace at that time, writes us that the experiment met with a small measure of success. Doubtless the several experiments . mentioned were not the only ones that were made with raw coal before success in its use was fully achieved; and doubtless, too, none of the experiments mentioned produced any more satisfactory results than the qualified success attained at Arcole furnace. The first truly successful use of raw bituminous coal in the blast furnace occurred in the autumn of 1845. It is circumstan- tially described in the following extract from a pamphlet, entitled Yowngstown, Past and Present, published in 1875 : "In July, 1845, Himrod and Vincent, of Mercer county, Pennsylvania, blew in the clay furnace not many miles from the Ohio line on the waters of the Shenango. About three months afterwards, in consequence of a short supply of charcoal, as stated by Mr. Davis, the founder, a portion of coke was used to charge the furnace. Their coal belongs to seam No. 1, the seam which is now used at Sharon and Youngstown, in its raw state, variously known as ' free- burning splint,' or 'block coal,' and which never makes solid coke. A difficulty soon occurred with the cokers, and, as Mr. Himrod states, he conceived the plan of trying his coal without cokeing. The fiirnace continued to work well, and to produce a fair quality of metal. It is admitted that Mr. David Himrod, late of Youngstown, produced the first metal with raw coal, about the close of the year 1845." The furnace here alluded to was situated on Anderson's run, in Mercer county, Pennsylvania, about two and one- half miles southeast of Clarksville, and was built in 1845. It has been abandoned for many years. In the chapter relating to Michigan we have mentioned the part taken by this furnace at an early day in smelting Lake Superior ores with the block coal of the Shenango valley. While Himrod and "Vincent were using the raw coal of the Shenango valley at Clay furnace, Messrs. Wilkeson, Wilkes & Co., of Lowell, in Poland township, Mahoning county, Ohio, were building Mahoning furnace, as related in the chapter devoted to Ohio, expressly to use in its raw state coal of the same quality from their mine near Lowell. This furnace was successfully blown in with this fuel by John Crowther on the 8th of August, 1846. The Trumbull Democrat, of Warren, Ohio, for August 15, 1846, in an ac- count of the blowing in of Mahoning furnace, states that " to these gentlemen (Wilkeson, Wilkes & Co.) belongs the honor of being the first persons in the United States who have succeeded in putting a furnace in blast with raw bitu- minous coal." John Crowther was an Englishman, born at Brosely, in Shropshire, on May 7, 1797. He emigrated to the United States in 1844, immediately prior to which time he had been the manager of seven blast furnaces in Staf- fordshire — five at Stowheath and two at Osier Bed. Prior ■to his connection with the Lowell furnace he had been em- ployed as manager of the furnaces at Brady's Bend. He adapted many furnaces in the Mahoning and Shenango val- leys to the use of block coal, and instructed three of his sons in their management, namely, Joshua, Joseph J., and Ben- jamin. He died on April 15, 1861, at Longton, in Stafford- shire, England, where he is buried. After it had been demonstrated at Clay and Mahoning furnaces that the block coal of the Shenango and Mahoning valleys could be used in the manufacture of pig iron, other furnaces in these two valleys were built to use this fuel, and some charcoal fur- naces were altered to use it. In 1850 there were, however, only four furnaces in the Mahoning valley and only seven in the Shenango valley which used raw coal. After 1850, and especially after the introduction into these valleys of Lake Superior ores, about 1856, the use of raw coal greatly increased. In 1856 six furnaces in Pennsylvania and thir- teen in Ohio were using this fiiel. Some progress was after- wards made in its use in other states, particularly in Indiana, but down to 1880 its use had been mainly confined to the two valleys mentioned. The American Iron and Steel As- sociation has published a table which exhibits the production of pig iron in this country in each year from 1854 to 1880, classified according to the fuel used. So much of this table is here reproduced as will show the growth of the manufac- ture of pig iron with anthracite and bituminous coal since 1854, and also the period at which the use of bituminous coal in the blast furnace overtook that of anthracite coal. Years. Anthracite. Charcoal. Bituminous Coal & Coke Total. Net Tom. Net Tom. Net Tom. Net Tom. 1864 339,435 342,298 54,485 736,218 18S5 381,866 339,922 62,390 784,178 1856 443,113 370,470 69,554 883,137 1872 . 1,369,812 600,687 984,159 2,854,658 1873 . , 1,312,754 677,620 977,904 2,868,278 1874 . 1,202,144 676,667 910,712 2,689,413 1875 . 908,046 410,990 947,645 2,266,681 1876 . . , 794,578 308,649 990,009 2,093,236 1877 . 934,797 317,843 1,061,946 2,314,585 1878 1,092,870 293,399 1,191.092 2,577,361 1879 . . . 1,273,024 ■358,873 1,438,978 ■ 3,070,875 1880 ... 1,807,661 537,568 1,950,205 4,295,414 1881 1,734,4*2 638,838 2,268,264 4,641,664 Some of the pig iron classed ahove as having been pro- duced with anthracite and bituminous coal, respectively, was produced with a mixture of these fuels, the quantity of pig iron so produced being mainly represented in the an- thracite column. The mixed fuel referred to was not used to any considerable extent until within the past few years. Before the close of the charcoal era steam had been applied to the blowing of American furnaces, but water-power was still in general use. The necessity of increasing the blast, and other considerations, soon led to the more general use of steam blowing engines in connection with anthracite and bituminous furnaces. Another improvement in hlast-furnace management also had its beginning about the close of the charcoal era, namely, the utilization of the combustible gases emitted from blast furnaces. These gases were first used to heat the boilers for the blowing engines, and after- wards to heat the hot-blast stoves. Bituminous coal was used at an early day in the heating furnaces attached to American rolling and slitting mills, and in 1817, when the roiling mill was established at Plumsock, in Fayette county, Pennsylvania, it was used in puddling furnaces. It was not, however, until about 1830, when rolling mills became numerous at Pittsburgh, that the use of bituminous coal in these establishments assumed noteworthy importance. — Cotnpihdfrom James M. Swanh^s B^ort on Iron and Steel, Tenth Census of QieJJ, S. 74 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. THE EARLY HISTORY OF THE MICHIGAN COPPER DISTRICT. PRIOR to the admission of Michigan as one of the States of the Federal Union, the Territory claimed as a valued portion of its domain a strip of land bordering on Lake Erie, in which was included the now flourishing city of Toledo. The right of possessing this parcel of land was insisted upon with equal strenuous- ness by the State of Ohio, and when, in 1835, a covention assembled at Detroit and formed a constitution defining the boundaries of the proposed State, and comprised within them this disputed territory, so great did the excitement become that men upon both sides began to arm and to organize for a conflict, that for a time it seemed must inevit- ably occur. The matter coming before Congress on the application of Michigan to become a State, that body passed an act admitting her into the Union upon condition that she should relinquish her claim to the disputed territory. A sugar-coating was given to this bitter pill by offering to her people, in lieu of the coveted territory so strenuously claimed, the isolated and little regarded region known as the Upper Peninsula. A convention being called soon after, these conditions were indignantly rejected ; but a second conven- tion, acting upon the inatter in December of the same year, concluded discretion to be the better part of valor, and reluctantly accepted the proviso, and in January thereafter (1837) Michigan was admitted into the Union. Thus it is 45 years since the Upper Peninsula was given to Michigan by Congress as a final settlement of a serious dispute ; it was thrown in, not as possessing intrinsic value, but to soothe the pride of an irritated people. The magnificent territory thus acquired was given as an offset to a mere strip of land insig- nificant in comparison, yet which was nevertheless regarded as of far greater value. But slowly the people awakened to a knowledge of the magnitude of their gain in the exchange which was thus thrust upon them. The State possesses in this northern peninsula one of the most wonderful and valuable regions within the limits of the national domain. Rich it is in minerals in an unparalleled and almost to an incredible degree, producing ores of iron unsurpassed in quality and unequalled in richness, and native copper in an abundance and of value found nowhere else. The possession of this country, known as the region of Lake Superior, as a portion of the territory of the United States is said to be due to Dr. Franklin, who, while in Paris, in the days of the American Revolution, represented the interests of the struggling colonies, became acquainted through the records of the government departments to which he had access, with the reports that had been made concerning the existence of copper along the margin of the Great Lake; and thus conceiving the region to possess a possible mineral value that would be available at some future period, he subsequently in arranging the treaty with England, in which she acknowledges our independence, drew the boundary line so as to include the south shore of Lake Superior within the limits of the new nation. The first exploration of the country bordering on Lake Superior was undertaken by Charles Raymbault and Isaac Jogues, two Jesuit priests, who, with a party of Hurons, landed at the Sault de Ste. Marie in the fall of 1641. Here they met a large body of Indians encamped upon the banks of the river engaged in catching fish in the rapids, and from them they learned that these waters were the outflow of a great lake lying beyond, which they designated as Kitchigummi, or Big Lake, as it exceeded, as they declared, in dimensions any other of the great lakes. In the following year, Raym- bault, having died at Quebec from the effects of his previous exj>osures, Jogues set out with some Huron attendants to revisit the Sault, and to extend still further his knowledge of the country and his intercourse with the tribes who inhabited it; but almost at the outset of his expedition, himself and party were captured by the Mohawks, and after suffering the most cruel torments, short of death, and witnessing the burning of his companions at the stake, he was finally ransomed by the Dutch, at Albany, whence he proceeded to France. Soon after, with unabated zeal, he returned to the scene of his former labors. Pierr6 Mesnard set out from Quebec in 1660, and having arrived at the Sault, proceeded in his canoe ahmg the south shore of the, lake to the head of Keweenaw Bay, where he remained through the winter, laboring to promote the spiritual welfare of the Indians. In the following summer, accompanied by a single Indian, he entered Portage Lake intending to cross the peninsula, and to push westward along the shore beyond; but while his guide was engaged in conveying the canoe across the Portage, the good father wandered into the woods and no trace of him was ever after- wards obtained. In 1666 Claude AUouez established a mis- sion at La Pointe, in Chaquomegon Bay, where he remained for two years extending his travels and his teachings among the Indians who gathered in great numbers to listen to his wonderful disclosures. Allouez makes mention of the veneration in which the lake is held by the savages who worship it, he says, as a divinity, and he also states that he has observed that they have in their possesssion pieces of copper, which are sometimes of a considerable size, which they esteem as domestic gods. Claude Allouez returned to Quebec to secure aid for his mission, but such was his zeal that in two days thereafter he again started to go back to the scene of his labors. Two years subsequent to the estab- lishment of his mission at La Pointe, James Marquette and Claude Dablon founded a permanent mission at the Sault de Ste Marie, and from this period the place dates its settle- ment, making it thus the oldest within the State. A grand council with the Indians was held and formal possession of the country was taken in the name of the King of Fi'ance. In 1690 two of the Jesuit fathers made a map of the Lake which was published in Paris three years later. A copy of this map is contained in Foster & Whitney's report, and shows with what care these men must have explored the coast which they thus represented. Since considering the great extent of the coast to be traversed, and their utter want of facilities to accomplish such a task other than their own almost unaided powers of observation, this graphical delineation of the outlines of the Great Lake is indeed a marvel of accuracy. Mesnard, Marquette, and Dablon were overtaken by death while in the midst of their labors and their bodies became mingled with the dust of the rude land they had discovered ; but their names deserve to be cherished with the memory of those who gave all in their zeal to pro- mote the welfare of the poorest of their fellow-men. The occurrence of copper was one of the objects that early attracted the attention of the Jesuits, and its presence, so frequently met with among the Indians, naturally excited their curiosity and wonder. Frequent mention of it is made, and in some instances the descriptions relate to masses of considerable size. But long prior to this period the metal that attracted the attention of the missionaries and early votjageurs, and which now forms the basis of a great and growing industry, had been sought and mined for by a people who have left no record but the implements which they used and the excavations which they made. These excavations the slow accumulations of debris during the years which have since elapsed had obscured from view, and the Indians, whom the good fathers labored to Christian- ize, had no knowledge whatever of the matter. No sus- picion that any such work had ever been performed occurred until within a recent period, after the country was thrown open to settlement and actual mining had begun. Then it became known that this ground had beeen previously occu- pied, and that these metalliferous ^eins had been long ao-o extensively worked and apparently large amounts of copper obtained ; but when and by whom is a mvstery. But that this mining work" is of a high antiquitv is evident from many facts; the pits and tunnels which had been made had become filled up with rubbish and with decayed vegetation and grown over with forest trees. If the depressions were ever observed they were naturally regarded as those made by overturned trees or as hollows in the rocks, and it was not suspected until the discovery was actually made, so late as 1847-48, that here, too, men had formerly delved in search of metals. These ancient excavations are found in all portions of the Mineral Range and in Isle Roval So general is this fact, that there is scarcely a vein or' outcrop of mineral m the whole copper district but the evidences are tound of their ancient workings, extending into the solid rock from a few feet to sixty feet in depth? In these THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 75 pits when cleared of the accumulated dirt and rubbish, have sometimes been found large masses of copper which these primitive seekers had unsuccessfully endeavored to remove. Masses of copper of many tons weight have thus been dis- covered surrounded with stone hammers in great numbers, pieces of burnt wood and other evidences of former labor. The method of mining which these people apparently pur- sued was to heat the rock by fire and then by pouring on water and pounding the rook with their stone hammers to disintegrate and separate it. Quantities of these stone ham- mers are nearly always obtained from the bottom of these ancient pits. They consist of small boulders of hard trap rock of from three to thirty pounds in weight, around which a groove has sometimes been made for the purpose of hold- ing a withe which fastened on the handle. Copper tools iind other utensils and materials have also been found, but no indications that would lead to the identification of the race to which these miners belonged, have been, as yet, discovered. These ancient " diggings," as they are locally called, are everywhere so abundant and have now become so well known and familiar to those engaged in mining in Michigan, as to be no longer'a matter of surprise or wonder. In one respect they have undoubtedly been of great service, serving as guides which have led to the discovery of lodes, which were thus shown to have been previously worked and as indicative of the value of such lodes. As in the iron region, the magnetic needle has guided to the discovery of many valuable deposits of ore, so in the copper district these pits of the ancient miners extending along the surface outcrop of the copper bearing veins, have silently betokened to the eager explorer where was hidden the object of his search. But to the Indians who roamed the country at the time of its discovery, to the Jesuits, and to the early voyageurs and explorers this fact of ancient mining was wholly unknown. The evidence of the exist- ence of copper in this region — a knowledge which had already become wide-spread — was derived from the speci- mens in the possession of the Indians and from seeing the erratic boulders of that metal which were sometimes found in traversing the country, and from observing the copper- bearing veins which outcropped along the streams and near the shore of the lake. Among those who early visited this country was Alexander Henry, who came to Mackinaw in about 1760 for the pur- pose of traffic with the Indians. Henry was a man of intel- ligence and education, and spent many years in this country, meeting with numberless adventures and actively engaged in various undertakings. He subsequently publisbed a well written and interesting narrative of his experience and his observations in the country. Henry became familiar with the fact of the existence of copper in the country, and, as he thought, of more precious minerals also. He describes the great copper rock, an erratic boulder or mass of native copper which lay in the margin of the Ontonagon River, about 20 miles above its mouth, at the foot of a' high bluff, from which it had rolled down or had been brought to the spot by some transporting agency, and which he describes as probably weighing five tons. Ten years thereafter Henry was chosen the agent of a company organized in England to conduct practical mining work in Lake Superior, and after some preliminary examinations elsewhere, selected this location as the seat of his operations. To this place he proceeded in the fall of 1770, with a small party of miners, in a vessel which he had previously built at the Sault. He himself soon after returned to the Sault, leaving his men to work through the winter. In the spring he sent his barge with provisions to the relief of his men, but was soon after surprised to see the vessel return with the whole party aboard. They had drifted into the bluff a distance of about 40 feet, and failing to secure the work, in the spring, when the frost went out and the ground became loosened, the walls fell in, and the miners, realizing the futility of the undertaking at that point, decided to abandon the work. Some copper was obtained, possibly chipped off from the great boulder. A second attempt was made, equaly unsuc- cessful, but conducted upon the north shore of the lake. Here they punctured the rock to a depth of 30 feet in a vein that rapidly narrowed as they proceeded downward, until it nearlv disappeared. Satisfied that nothing was likely to be gained here, and his associate members refusing to advance any more money, further effort was relinquished. What copper had been obtained was sent to England, and the ves- sel and other company property were sold to pay the debts. The parties to this enterprise, the first mining undertaking in the Lake Superior country within historical times, were His Royal Highness the Duke of Gloucester, Mr. Secretary Townshend, Sir Samuel Touchet, Mr. Baxter, Consul to the Empress of Russia, Mr. Cruickshank, Sir William Johnson, Mr. Bostvvick, and Alexander Henry. A charter was applied for and granted, but never taken from the seals office. Henry, in reflecting upon the matter, states that the country must be settled and peopled before mining can be carried on to advantage. He avers that the soil is productive and will grow good crops, and cites some facts to corroborate the statement, among which he says he distributed seed corn among the Indians, which they planted and which yielded well, though he thinks them too improvident to preserve their seed from year to year. Capt. Jonathan Carver pub- lished in 1796 an account of three years' travel in this country, in which he speaks of the Ontonagon River as a stream of considerable size that flows into the lake, the head of which is composed of an assemblage of small streams. He declares the river to be remarkable for the abundance of virgin copper, which is found near its banks, and states that this metal is also met with elsewhere in the country. He opines that at some future period it may furnish the basis of a profitable industry, and relates how the metal may be car- ried in vessels to the Sault, thence around the rapids and re-shipped to Niagara Falls, here another portage to a point below the Falls, whence it may be conveyed to Quebec or elsewhere. It was not until 1796 that Michigan came into possession of the American government, and the uncertainty of affairs, the trouble with the English government and with the In- dians prevented any effort being made towards the explora- tion or settlement of the Territory, much less of the Lake Superior country. In 1818-19 the survey of Michigan was begun, a delegate was sent to Congress, some important Indian cessions made, and the lands thrown open to sale. And in the latter year Gen. Lewis Caes, the Governor of the Territory, proceeded, under directions from the War Depart- ment, on a tour of inspection, which included the south shore of Lake Superior. This expedition was accompanied by Mr. H. R. Schoolcraft in the capacity of geologist, etc., and he had for his object an especial purpose to determine as far as possible the truth of the reports regarding the mineral value of the country. The party entered the mouth of the On- tonagon River in July and proceeded up the stream a dis- tance of twenty miles and upwards, to view the celebrated copper rock previously spoken of, the fame of which had reached their ears. He speaks of finding copper along the banks of the river, and that La Houton, Charlevoix, Carver, and McKenzie have successively noted the same remarkable fact and published accounts thereof which had given to the stream a notoriety which it would not otherwise have pos- sessed. Many of the reports regarding the minerals found in the country referred especially to this river, but nothing very definite was known and it was for the purpose of en- deavoring to determine the facts that they entered the river. The party experienced excessive difficulty in ascending the rapids and in climbing over the range with the thermometer indicating at 90° in the shade, and with the swarms of mus- quitoes and flies attacking them. The General, who remained in the boat, became exhausted ; however, both divisions of the party finally reached their destination and found the ob- ject of their search. The size of the rock scarcely met their expectations, still Mr. Schoolcraft thought it a remarkable object and one well worth the journey to see. It evidently had been frequently visited since it bore the marks of much pounding and many cuts, and broken tools lay strewn about. The mass had apparently been removed some distance from its original bed as the adhering rock, mainly serpentine, was foreign to the vicinity ; its whole appearance, the intimate association of the metal and matrix, pointed to a common and contemporaneous origin. This mass of native copper, which up to the period of its removal was the largest known in the world, was, in the spring of 1842, taken to the mouth of the river by James PauU who came to the country from the lead mines of Wisconsin for that purpose. Paull pre- pared a truck car upon which he hoisted the rock and sue- 76 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. ceeded in drawing it over the range by using a windlass, taking it to a point below the rapids and thence conveying it to the mouth of the river on a iiat boat. The mass was soon after sold to a Mr. Eldridge who in turn sold it to the U. S. Government, and it has since been on the grounds of the War Department, at Washington. PauU claims to have bought of an Indian a second mass of copper of about 800 lbs. weight, which was found on the west shore of the peninsula, above the Portage, and which he took to Copper Harbor, whence, he thinks, it found its way into the cabinet of Yale College. Paul! remained at Ontonagon where he still resides, and was thus the first permanent resident in the copper region. By a succession of treaties made with the various Indian tribes in 1836, 1837 and 1842, the lands comprising the Lake Superior district were ceded to the United States, and all Indian claims thereto were finally extinguished. Imme- diately thereafter large numbers of persons proceeded to the country with authority from the Government to mine on the lands of the newly acquired territory. Public atten- tion had been recently awakened to the copper deposits of the northern peninsula through the first published report of Dr. Houghton, who, having been appointed geologist of the newly made State, eagerly entered upon the active prosecution of his labors, extending his geological observa- tions to the shores of Lake Superior, and in 1841 submitted to the Legislature the results of this preliminary examina- tion. In this report the prominent geological features of the country were ably outlined, and the first definite in- formation regarding the occurrence of copper and the cha- racter of the deposits was given to the world. Dr. Houghton, a few years later, entered upon the prosecution of a detailed survey of the entire Upper Peninsula, upon a plan which he successfully inaugurated, but the fulfillment of which was unfortunately prevented by his untimely death, by drown- ing, which occurred on the 13th of October, 1847, near the mouth of Eagle" river, in Keweenaw county. With him was thus lost to the world the valuable results of his extended observations, and the system which he had devised of com- bining with the government linear survey of the country, geological and other scientific work was gradually aban- doned. But his previous announcements had already drawn the public attention to the country. The copper district was now swarming with speculators, prospectors and ex- plorers; and the rocks were being everywhere perforated with incipient mining. The first operations were under- taken under grants or permits obtained from the War Department, of which about 1,000 in all were issued, and 960 locations actually made. The essential conditions of these leases were that the lessee, or his assigns, should, during the first three years, pay to the government six per cent, of all metal produced ; at the expiration of that period the lease should be renewed, at the option of the holder, for an additional three years on condition of payment to the government of ten per cent, of the mineral obtained, at the end of which time the lease could be further extended for the same length of time on the same conditions, unless Congress should otherwise dispose of the lands. Very many of these locations were made along the Keweenaw peninsula, and this portion of the country became the seat of the earliest mining work, and for some years before operations were conducted elsewhere to any extent this im- mediate region was teeming with active industry. The mineral range in this county, which begins at the ex- tremity of Keweenaw Point, and trends westerly a distance of about twenty miles, and thence southwesterly, is charac- terized by the occurrence of a broad belt of green stone or semi-crystaline trap, which forms the southern escarpment or wall in this portion of the range. This greenstone forma- tion terminates at about the south line of the county, and does not again appear throughout the further prolongation of the mineral range. The greenstone has a northerly and northwesterly dip, corresponding with the other belts of this portion of the range, of about 24° to 30° to the horizon, and attains an elevation above the lake of about 800 feet. From the top of the range the land slopes with a general gradual descent to the north and to the west to the lake, which is distant in this direction from two to three miles. On the south side the elevation drops abruptly a distance of one to two hundred feet to a low lymg plane which forms | three square miles including Copper Harbor- the valley of the Eagle river and other streams, and which reaches to the east till it meets the foot of a second range of hills having a trend generally parallel with the principal elevation, and known as the Southern or Bohemian range. This portion of the range, as far as the greenstone extends, is frequently crossed by veins having a nearly vertical dip and a lateral direction generally at right angles to the formation and a width of from one foot to three feet, and have been found to carry copper sometimes in extraordi- nary quantities, some of them having proved among the most remarkable deposits of copper that the world has re- vealed. Both north and south of the greenstone are numerous amygdaloid beds, which are crossed by the fissure veins, and which usually carry a greater or smaller percen- tage of copper. There are also found in some portions, immediately underlying the greenstone and further to the south, beds of conglomerate, which in some instances con- tain copper in workable quantities. But surpassing all these, except the fissure veins, the most important of the copper-bearing deposits of this district is what is known as the ash bed, a scoriacious amygdaloid bed lying north of the greenstone, having a varying width of from five to twenty feet, and yielding at favorable points about one per cent, of copper. This ash bed, as it is called, through the invention and use of the compressed air drill, high explosives and greatly improved stamping and washing apparatus, seems likely to become the basis of the future mining prosperity of Keweenaw county, although in the past all attempts to work it at a profit have proved ruinous to the companies engaged in the undertaking. In the earlier period of copper mining on Lake Superior, the fissure veins, yielding copper in masses, were the ones which gave to the country its celebrity, and the ones in which the mining operations were attended with profit, and of these the most noted and the most productive lie south of the greenstone — an important feature of this region geologi- cally as well as geographically. As before remarked, what has proved to be, thus far, the great copper-bearing belt of Keweenaw county, lies immediately south of the greenstone, and pitches beneath it. In this belt are situated the Clifi", Phcenix, Central, Delaware and many other noted mines which have produced the greater portion of the copper ob- tained. South of this copper-bearing range which underlies the greenstone, is another belt having a parallel direction, but of an entirely different character, and too lean in copper to have aflPorded to the companies that worked it any degree of prosperity. Of these are the South Cliff, Manhattan, North American, Boston & Northwestern, and other com- panies, all of whose operations have resulted unprofitably. The same transverse veins which have proved so abundantly rich beneath the greenstone in crossing this belt, are poor and of a character in keeping with the country rock. Still further to the south is another belt quite distinguish- able in character, within which are several beds of amygda- loid exposed at the surface, but the working of which has proved equally unprofitable. The ash bed, to the north of the bluff, is crossed by the fissure veins which have here also yielded, in the aggregate, a large amount of copper, but occurring in pockets and not in any degree of certainty or with the comparative richness or regularity pertaining to the ground underneath the greenstone when crossed by the fissure veins. Underlying the greenstone and in contact with it, occurs a belt of con- glomerate which at some points is utterly barren of copper, at others becomes a mere slide, while at the AUouez and at the Conglomerate Mining Company's location it becomes a distinct workable deposit. The fissure veins crossing the greenstone have never proved suflioiently rich in copper in this lormation, to be profitably mined. As before stated, immediately succeeding the final treaty extinguishing the possessory rights of the Chippewas to the lands in the Upper Peninsula in 1842, and the decision of the General Government to issue to applicants exploring permits, the country became at once flooded with searchers for mineral who made locations and obtained Government leases there- tor which they subsequently sold to eastern capitalists. A person by the name of Raymond secured, thus earlv several of these leases, three of which he disposed of to parties in littsburg and Boston. Thesejeases comprehended : First, -a name given THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 77 to this point by the early voyageurs by reason of the cuprif- erous vein which conspicuously outcrops here; second, three miles square on the west side of Eagle River, in which tract is included the Cliff mine ; and third, a like tract in the next township west. Work was begun by these Pittsburg and Boston gentlemen in 1844, consisting of sink- ing a shaft to the depth of forty feet, on Hog's Point, under the direction of Charles Avery, the president of the asso- ciation. This was the first mining shaft that was sunk on the lake. Soon after a continuation of this vein, with much more favorable indications, was discovered on the opposite side of the harbor near the site of old Fort Wilkins. This vein contained a deposit of black oxide of copper, a remarkable fact, since it has proved to have been the only similar deposit that has thus far been found, excepting, perhaps, traces of the same vein which has occasionally been observed elsewhere in this vicinity. The mining work was immediately transferred to this point, and two shafts were sunk at a distance apart of about 100 feet. The pocket of black oxide proved of brief duration ; about 40 tons were obtained and sold for $4,500. The main shaft was carried down a distance of 120 feet and levels were driven each way from the shaft, in the vein, without finding any more of the ore. In the meantime an important discovery was made on the Eagle River location by a party of explorers, under the direction of Mr. Cheny, in the greenstone bluff in the s. w. \ of sec. 36, T. 68 N., R. 32 W., being about three miles distant from the lake, which is what became known as the Cliff Mine. This celebrated vein was first discovered in 1845 on the upper surface of the greenstone, where it is narrow and gave little indication of the enormous wealth concealed below. It was examined by Dr. Jackson and Mr. Whitney, geologists, who advised, as the vein became wider and richer as it was traced downward on the wall of the bluff, that it would be well to uncover and examine it at the foot. The rocks at the foot of the bluff were cleared away in the winter of 1845, and indications obtained which stimulated to increased activity. An adit was driven a distance of about 70 feet, when it intersected a mass of copper- — the first mass of native copper that had been found in place in the Lake Superior region. This discovery was one of the most important that was made in the copper district, since it determined the fact that the erratic boulders which had been previously found had their origin in the region itself, and since it was but the precursor of a continued succession of masses that astonished the world and gave confidence to investments in the country and enthusiasm and zeal in its investigation. After the dis- covery of the Cliff Mine the Eagle River location was purchased of the government and the other leases were abandoned. About the time the first work was done the gentlemen holding these leases entered into articles of agreement for the formation of a company ; these parties were H. G. Hussey, T. M. Howe, and five others. The association was formed May 13, 1844, as the Pittsburg and Boston Mining Company, and under that name was incorpo- rated by a special act of the Legislature of Michigan, approved March 18, 1848, with a capital stock of $150,000, divided into 6,000 shares. The number of shares were sub- sequently increased to 20,000, without any increase in the capital stock. The cost of the lands purchased from the government— about 5,000 acres— was $11,600. The Cliff vein, an amygdaloid trap, was from the start remarkably rich in mass copper, and subsequently also afforded a con- siderable amount of stamp rock obtained especially from the beds of amygdaloid, or the amygdaloid floors, which inter- sected the vein at right angles, having a varying thickness, and which were of frequent occurrence, dipping and running with the formation, and some of which were found to be highly productive in copper. They occasioned some trouble from the crumbling character of the rock, tending constantly to close up the shafts and the levels, making it frequently necessary to enlarge the, shafts and lower the tramways in the levels. The rock did not crumble off in fragments to any great extent ; it was hard and sufficiently difficult to mine, but the pushing force was stronger than any timbers were able to resist. Work was fairly begun in 1846, and during the seven years thereafter the vein was penetrated to a depth of 462 feet and a range of about 1,200 feet, and sufficient copper taken out to realize in net sales the sum of §1,328,406.83. It may be safely asserted that nowhere in the world had there previously been produced so large an amount of copper from the same amount of ground. The mine was paying to the company a net profit of $20,000 per month. The dividends paid during this period aggregated the sum of $462,000, or $77 per share, the first dividend, $60,000, being paid in 1849, and the total assess- ments had amounted to S18.50 per share, $110,000 ; at this time the stock and the quotations of the stock in the Boston market, June, 1854, was $175 per share. To illustrate how little was definitely known regarding the geological structure of the country at this time, the opinion was entertained that the greenstone would, in itself, prove productive in copper. It was also thought to be possibly an overcap, or to compose a basin, and thus did not extend far into the earth, so that the lower levels, if extended northward, would pass under it. With a view to settle these conjectures, the upper levels were driven into this formation, but all the workings in this direction went to establish the fact that the veins in the greenstone do not carry copper in paying quantity, and the scientific suppo- sition, previously made, became verified that the greenstone belongs to the regular geological strata of the country. No. 1 shaft was sunk at the foot of the bluff, and the levels therefrom, carried to the north, intersected No. 3 shaft which was sunk vertically from near the edge of the bluff, passing 129 feet through the greenstone to the slide where it intersected No. 1 level ; but as the mine attained depth and the levels were pushed to the north under the greenstone, the necessity began to be greatly felt for in- creased facilities for hoisting to the surface. The peculiar geological features of the mine, being overlaid with the heavy belt of crystalline trap, rendered it necessary that either a vertical shaft should be sunk, although it must pass through 650 feet of unproductive rock, exceedingly difficult to excavate, or an inclined shaft must be built run- ning down into the mine following, substantially, the direction of the limiting greenstone wall. The objections tp the latter arose from the irregular and tortuous course of the vein and the frequent enlargements from 10 ft., 15 ft., and even to 20 ft. in width, so that the necessary alignment could not be secured and keep within the vein ; added to this was the fact that the ground had been very fully stopped out, in some places to an enormous width, which would render it extremely difficult to adequately support the track for a skip road. If the incline were made, it would require to be driven, mainly off the lode, to one side of it, in which case it would be all dead work — ^be driven in unproductive trap — and therefore it was thought to have little advantage in matter of economy of construction over the vertical shaft ; in fact the matter w^ held under consideration for several years. The company's engineer careftilly estimated the matter and it was concluded that the latter would involve the less cost. It was finally decided to sink the vertical shaft, and the work was begun in 1854 at a point 943 feet north from No. 3. This shaft, called No. 4, involved a nice problem of engineering, the work being carried upward and downward at the same time, and it being exceedingly important that the alignment should be exact. It will be readily understood that the carrying of a line down a deep shaft and thence for a long distance underground to be finally extended upwards hundreds of feet through solid rock to intersect an exact point, must require extreme accu- racy to be successfully performed ; in this instance the result was entirely satisfactory. The mine yielded many large masses of copper at this time — 1854. In driving north in the 7th level a mass was found 80 feet in length and 20 feet in breadth, so heavy that a sand blast of several kegs of powder did not suffice to stir it. The company built a dock at the mouth of Eagle River and constructed a road from the mine thereto, warehouses, both at the mine and at the harbor, were built and many other surface improvements made, which included a 24-head stamp mill, to which 12 more heads were subsequently added. The total expen- ditures to the close of the year 1853 were 8948,839.83. The average number of miners employed, 120, and the average monthly earnings were $39 per month. Average cost of drifting in the levels was $30 per yard, and average cost for stoping per fathom $23. The company owned its 78 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. own smelting furnace in Pittsburg, at which its mineral was smelted. Abovt 70 per cent of the product was in masses, the remainder being about equally divided between barrel and stamp work. During its time there was nothing in mining history to compare with the surpassing richness of the ClifF. The Minnesota approached it in productiveness, but scarcely equalled it. For years there was scarcely a foot of ground that did not fully pay the cost for excavating, yielding in 1856 for each fathom of mineral ground broken the unprecedented amount of 1,851 pounds of mineral, yielding 67 per cent, refined copper. The business of min- ing, especially for the more valuable metals, is at all times precarious and uncertain, but the owners were confident, and surely they found in their mine an abundant reason for the faith that was in them. During each year explorations were being made to discover additional workable deposites on the company's property, but without any conspicuous result. The number of men employed had increased to about 460 in 1856, at an average wage per month of $32. The mining work was generally done on contract. The cost per ton for hauling to Eagle River was $1 to $1.12. The number of shares in 1858 was increased to 20,000, and the market value of the shares was about $300 per share. The company was one of the pioneer companies of the region. As before stated it sunk the first mining shaft in 1844, at Cooper Harbor, and afterward acquired at the Cliff mine the greatest degree of success heretofore experienced by any company, and while the stockholders were well compensated in dividends for their enterprise, their exper- ience and success contributed greatly to aid and encourage others, and thus indirectly resulted in developing the mate- rial interests of the country. The whole amount of the capital stock paid in was $110,905. and from 1848 to the cessation of work in 1870 the Cliff mine had not only sus- tained the expenses of the company, but had paid to the stock-holders the net sum of $2,627,660, or a little over 2,000 per cent, of the capital paid in. The capital stock paid in does not, however, represent the total expenditure incurred in bringing the mine to the divided paying point ; it sufficed to open the mine to the extent that the product met the e:^- penses. Over half a million of dollars were expended be- fore any dividends were paid. If it had not been for the excessive productiveness of this mine this preliminary ex- penditure would have been a failure. The wonderful suc- cess of this mine occasioned the starting of many others in similar situations, with apparently as reasonable prospects of success, but with perhaps the exception of the Central it has had no rival among the mines that have worked underneath the greenstone. Contemporary with the Pittsburg and Boston Mining Company, and really antedating it by a few months in the time of organization, was the old Lake Superior Copper Company, the progenitor of the present Phoenix Company. The originators of this pioneer enterprise, one of the most important ever undertaken on the lake, were among the first who proceeded to Lake Superior after the relinquish- ment of the Indian rights to this country in 1843. They represented mainly gentlemen from Boston, who selected seven three-mile square locations, and afterward secured them by leases obtained from the War Department, and in 1844, February 22d, organized a company, dividing the cap- ital stock into 1,200 shares of $100 each, 400 of which were assigned to the proprietors of the locations in payment for the lands conveyed to the company ; these purchased shares were to be exempt from assessment. In addition to the 400 shares, the original holders of the leases were to receive compensation for the expenses incurred in locating the lands, etc., to be paid out of the first earnings of the company. The conditions on which these leases were granted were very advantageous to the lessees, as it gavt^ them several years in which to explore the lands and to de- termine as far as they deemed requisite their mineral value before deciding to purchase ; they were virtually long op- tions, in which the government only secured to itself a per- centage of the mineral products which should be removed. The trustees of this early organization were David Han- shaw, Samuel Williams, of Boston ; D. G. Jones, of Detroit, and Col. Chas. H. Gratiot; the latter recently from the lead mines of Missouri. Several veins had been discovered on the property, and Dr. C. T. Jackson, who was employed to examine them, found them so favorable that he recomend- ed the prosecution of mining work, which was begun Oc- tobsr 22, 1844, in the east bank of the Eagle river, near the center of the line between sections 19 and 30, T. 68 N., R. 31 W. The preliminary work was directed by Dr. Jackson, but when he left the country late in the season, for his home in Boston, the charge of attairs was given over to Col. Gratiot, who had had previous experience in the lead mines. A stamp mill was decided upon, and the necessaiy machin- ery contracted for in Detroit, which on completion, was transferred to the lake and got ready for work in August, 1845. This was the first attempt at a stamp mill on Lake Superior, but it proved unsuitable for the purpose intended, and was of little service. The building is yet standing in which this stamping work was thus early begun. — Gambled from annual report Michigan Commissioner of Mineral Statistics, 1880, EARLY DAYS OF MINING, ON THE PACIFIC SLOPE. THE first mention of gold in California is made in Hakluyt's account of the voyage of Sir Francis Drake, who spent five weeks in June and July, 1579, in a bay near latitude 38° ; whether Drake's bay or San Francisco bay is a matter of dispute. It cer- tainly was one of the two, and of neither can we now say with truth, as Hakluyt said seriously, " There is no part of the earth here to be taken up wherein there is not a reason- able quantity of gold or silver." This statement, taken literally, is untrue, and it was probably made without any foundation, merely for the purpose of embellishing the story and magnifying the importance of Drake and of the country which he claimed to have added to the possessions of the English crown. If any " reasonable quantity " of gold or silver had been obtained by the English adven- turers, we should probably have had some account of their expeditions into the interior, of the manner and place in which the precious metals were obtained, and of the speci- mens which were brought home, but of these things there is no mention. Neither gold nor silver exists " in reasonable quantity " near the ocean about latitude 38°, and the infer- ence is that Drake's discovery of Gold in California was a matter of fiction more than of fact. Some small deposits of placer gold were found by Mexicans near the Colorado river at various times from 1775 to 1828, and in the latter year a similar discovery was made at San Isidro, in what is now San Diego county, and in 1802 a mineral vein, supposed to contain silver, at Olizal, in the district of Monterey, attrac- ted some attention, but no profitable mining was done at either of these places. Forbes, who wrote the history of California in 1835, said "No.minerals of particular import- ance have yet been found in Upper California, nor any ores of metals." It was in 1838, sixty-nine years alter the arrival of the Franciscan friars, and the establishment of the first mission, that the placers of San Francisquito, forty-five miles northwest from Los Angeles, were discovered. The deposit of gold was neither extensive nor rich, but it was worked steadily for twenty years. In 1841 the exploring expedition of Commodore Wilkes visited the coast, and its mineralogist, James D. Dana, made a trip overland from the Columbia river, by way of Willamette and Sacramento valleys to San Francisco bay, and in the following yesir he published a book on mineralogy, and mentioned in it that gold was found in the Sacramento valley, and that the rocks similar to those of the auriferous formations were observed in southern Ore- gon. Dana did not regard his discovery as of any practical value, and if he said anything about it in California no one paid any attention to it. Nevertheless, many persons had an idea that the country was rich in minerals, and on the 4th of May, 1S46, Thomas O. Larkin, then United States consul in Monterey, a gentleman usually careful to keep his statements witliin the limits of truth, said in an official let- ter to James Buchanan, then Secretary of state : " There is no doubt but that gold, silver, quicksilver, copper, lead, sul- phur, and coal mines are to be found all over California, and THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 79 it is equally doubtful whether, under their present owners, they will ever be worked." The implication here is that if the country were only transferred to the American flag, these mines, of whose existence he knew nothing save by surmise, or by the assertion of incompetent persons, would soon be opened and worked. In sixty-six days after that letter was written, the stars and stripes were hoisted in Monterey, and now California is working mines of all the minerals men- tioned by Larkin save lead, which also might be produced if it would pay, since there is no lack of its ores. Marshall's Discovery. — ^The disco yery of the rich gold fields of the Sacramento basin is an American achieve- ment, accomplished under the American dominion, by a native of the United States, and made of world-wide im- portance by American enterprise and industry, favored by the liberal policy of American law. It was on the 19th day of January, 1848, ten days before the treaty of Guada- lupe Hidalgo was signed, and three months before the rati- fied copies were exchanged, that James W. Marshall, while engaged in digging a race for a saw-mill at Coloma, about thirty-five miles eastward from Sutter's Fort, found some pieces of yellow metal, which he and the half dozen men working with him at the mill supposed to - — . be gold. He felt con- fident that he had made a discovery of great importance, but - '_ he knew nothing of either chemistry or gold mining, so he could not prove the nature of the metal or tell how to obtain it in paying quantities. Ev- ery morning he went down to the race to look for the bits of the metal ; but the men at the mill thought Mar- shall was very wild in his ideas, and they continued their labors in building the mill, and in sowing wheat, and planting vegeta- bles. The swift cur- rent of the mill-race washed away a consid- erable body of earthy matter, leaving the coarse particles of gold behind, so Marshall's collection of speci- mens continued to ac- cumulate, and his associates began to think there might be something in his gold mine after all. About the middle of February, aMr. Bennett, one of theparty employed atthe mill, went to San Francisco for the purpose of learning whether this metal was precious, and there he was introduced to Isaac Humphrey, who had washed for gold in Georgia. The experienced miner saw at a glance that he had the true stuff before him, and after a few inquiries he was satisfied that the diggings must be rich. He made immediate preparation to go to the mill, and tried to persuade some of his friends to go with him, but they thought it would be only a waste of time and money, so he went with Bennett for his sole companion. He arrived at Coloma on the 7th of March, and found the work at the mill going on as if no gold existed in the neighborhood. The next day he took a pan and spade and washed some of the dirt from the bottom of the mill race in places where Marshall had found his specimens, and in a few hours Humphrey declared that these mines were far richer than any in Georgia. He now made a rocker and went to work washing gold industriously, and every day yielded him an ounce or two of metal. The men at the mill made rockers for themselves, and all were soon busy in search of the yellow metal. Everything else was abandoned ; the rumor of the discovery spread slowly. In the middle of March, Pearson B. Read- THB SAW MILL OF COLOMA, WHEEE GOLD WAS DISCOVERED, JANtTAET 19, 1848. ing, the owner of a large ranch at the head of the Sacra- mento valley, happened to visit Sutter's Fort, and hearing of the mining at Coloma, he went thither to see it. He said that if similarity of formation could bs taken as proof, there must be gold mines near his ranch, so after observing the method of washing, he posted ofi", and in a few weeks he was at work on the bars of Clear creek, nearly two hundred miles northwestward from Coloma. A few days after Read- ing left, John Bidwell, once representative of the northern district of the State in the lower house of Congress, came to Coloma, and the result of his visit was that in less than a month he had a party of Indians from his ranch washing gold on the bars of Feather river, seventy-five miles north- westward from Coloma. Thus the mines were opened at far distant points. The first printed notice of the discovery was given in Ihe California newspaper published in San Francisco, on the 15th of March, as follows : " In the newly made race-way of the saw-mill recently erected by Captain Sutter on the American Fork, gold has been foimd in con- ~!rlnlili- qmntitirg. One person brought thirty dollars to New il"l\i.ii.i, L'.itlii ri'il there in a short time." On the 29th of May the same paper, an- nouncing that its pub- lication would be suspended, says : " The whole country, from San Francisco to Los Angeles, and from the sea-3iore to the base of the Sierra Nevada, resounds with the solid cry of gold /gold ! gold ! while the field is left half planted, the house half built, and every- thing neglected but the manufacture of picks and shovels, and the means of transportation to the spot where one man ob- tained one hundred and twenty- eight dollars' worth of the real stuft in one day's washing ; and the average for all con- cerned is twenty dollars per diem." The towns and farms were deserted, or left to the care of women and children, while rancheros, wood-choppers, me- chanics, vaqueros, deserted or obtained energies to washing and soldiers and sailors who had leave of absence, devoted all their the auriferous gravel of the Sacramento basin. Never satisfied, however much they might be making, they were continually looking for new places which might yield them twice or thrice as much as they had made before. Thus the area of their labors gradually extended, and at the end of 1848 miners were at work in every large stream on the western slope of the Sierra Nevada, from the Feather to the Tuolumne river, a distance of one hundred and fifty miles, and also at Reading's diggings, in the northwestern corner of the Sacramento valley. The first rumors of the gold discovery were received in the Atlantic States and in foreign countries with incredulity and ridicule ; but soon the receipts of the precious metal in large quantities, and the enthusiastic letters of army officers and men of good re- pute, changed the current of feeling, and an excitement almost unparalleled ensued. Oregon, the Hawaiian islands, and Sonora sent their thousands to share in the auriferous harvest of the first year ; and in the following spring all the adventurous young Americans east of the Rocky mountains wanted to go to the new Eldorado, where, as they imagined, everybody was rich, and gold could be dug by the shovelful from the bed of every stream. Before 1850 the population of California had risen from 15,000, as it was m 1847, to 80 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 100,000, and the average increase annually for five or six years was 50,000. As the number of mines increased, so did the gold production and the extent and variety of the gold fields. In 1849 the placers of Trinity and Mariposa were opened, and the following years those of Klamath and Scott's valleys. Primitive Mining Methods. — In the first two years the miners depended mainly for their profits on the pan and the rocker. The placer miner's pan is made of sheet-iron, or tinned iron, with a flat bottom about a foot in diameter, and six inches high, inclining outwards at an angle of thirty or forty degrees. We frequently see and hear the phrase " golden sands," as if the gold were contained in loose sand ; but usually it is found in a tough clay, which envelops gravel and large boulders as well as sand. This clay must be thoroughly dissolved ; so the miner fills his pan with it, goes to the bank of the river, squats down there, puts his pan under water and shakes it horizontally, so as to get the mass thoroughly soaked ; then he picks out the larger stones with one hand and mashes up the largest and toughest lumps of clay, and again shakes his pan ; and when all the dirt appears to be dissolved so that the gold can be carried to the bottom by its weight, he .tilts up the pan a little to let the thin mud and light sand run out ; and thus he works until he has washed out all except the metal which remains at the bottom. The rocker, which was introduced into California mines at their discovery, is made somewhat like a child's cradle. On the upper end is a riddle, made with a bottom of sheet-iron punched with holes. This riddle is filled with pay-dirt, and a man rocks the machine with one hand while with a dipper he pours water into the riddle with the other. With the help of the agitation, the liquid dissolves the clay and carries it down with the gold into the floor of the rocker, where the metal is caught by traverse riffles or cleets, while the mud, water and sand run ofi' at the lower end of the rocker, which is left open. The riddle can be taken oif so that the larger stones can be conveniently thrown ofil In places where there was not water enough for washing, and where the gold was coarse, the miners some- times scratched the metal from the crevices in the rocks with their knives ; but the pan and rocker were their main reliance for three or four years. In many places the rich spots were soon exhausted, and there was a rapid decrease in the profits of the miners. It was necessary that they should devise new and more expeditious methods of work- ing, so that they could wash more in a day, and thus derive as much profit as they had obtained by washing a little dirt. The chief want of the placer miner is an abundant and convenient supply of water, and the first noteworthy at- tempt to convey the needful element in an artificial channel was made at Coyote Hill, in Nevada county, in March, 1850. A ditch was built about two miles long, and, proving a de- cided success, was imitated in many other places, until, in the course of eight years, six thousand miles of mining canals had been made, supplying all the principal placer districts with water, and furnishing the means for obtaining the greatest portion of the gold yield of the State. Many of the ditches were marvels of engineering skill. The problem was to get the largest amount of water at the greatest altitude above the auriferous ground, and at the least immediate expense, as money was worth from three to ten per cent, per month interest. As the pay-dirt might be exhausted within a couple of years, and as the anticipated profits would in a short time be sufficient to pay for an en- tirely new ditch, durability was a point of minor import- ance. There was no imperial treasury to supply the funds for a durable aqueduct in every township, nor could the im- patient miners wait a decennium for the completion of gi- gantic structures in stone and mortar. The high value of their time and the scarcity of their money made it neces- sary that the cheapest and most expeditious expedients for obtaining water should be adopted. Where the surface of the ground furnished the proper grade, a ditch was dug in the earth ; and where it did not, flumes were built of wood and sustained in the air by frame-work that rose sometimes to a height of three hundred feet in crossing deep ravines, and extending for miles at an elevation of a hundred or two hundred feet. All the devices known to mechanics for con- veying water from hill-top to hill-top were adopted. Aque- ducts of wood and pipe of iron were suspended upon cables of wire, or sustained on bridging of wood ; and inverted siphons carried water up the sides of one hill by the heavier pressure from the higher side of another. The ditches were usually the property of companies, of which there were at one time four hundred in the State, owning a total length of six thousand miles of canals and flumes. The largest of these, called the Eureka, in Nevada county, had two hundred and five miles of ditches, constructed at a cost of $900,000 ; and their receipts at one time from the sale of water were $6,000 per day. Unfortunately these mining canals, though more numerous, more extensive, and bolder in design than the aqueducts of Rome, were less durable, and some of them have been abandoned and allowed to go to ruin, so that scarcely a trace of their existence remains, save in the heaps of gravel from which the clay and loam were washed in the search for gold. As the placers in many districts were gradually exhausted, the demand for water and the profits of the ditch companies decreased ; and the more ex- pensive flumes, when blown down by severe storms, carried away by floods, or destroyed by the decay of the wood, were not repaired. Miners' "Rushes." — The year 1850 was marked by the first of a multitude of "rushes" or sudden migrations in search of imaginary rich diggings. The miners, although generally men of rare intelligence as compared with the laborers in other countries, had vague ideas of the geological distribu- tion of gold, and the marvellous amounts dug out by them, sometimes ascending to thousands of dollars per day to the laborer, excited their fancy so much that they could scarce- ly have formed a sound judgment if they had possessed the information neccessary for its basis. Many believed that there must be some volcanic source from which the gold had been thrown up and scattered over the hills, and they thought that if they could only find that place, they would have nothing to do but to shovel up the precious metal and load their mules with it. More than once, long trains of pack animals were sent out in the confident expec- tation that they would get loads of gold within a few days. No story was too extravagant to command credence. Men who had never earned more than a dollar a day before they came to California were dissatisfied when they were here ■ clearing twenty dollars, and they were always ready to start ofi' on some expedition in search of distant diggings re- puted to be rich. Although the miners of to-day have far better ideas of the auriferous deposits than they had thirty years ago, and no longer expect to dig up the pure gold by the shovelful, they are now, as they have been since the discovery of the mines, always prepared for migration to any new field of excitement. In the spring of 1850 a story was circulated that gold was lying in heaps on the bank of Gold Lake, a small body of water eastward of where Down- ieville now is. Thousands of men left good claims to join this rush, but after weeks or months they returned much poorer than they started. The next year witnessed a rush to Gold Bluff, on the ocean shore about latitude 41°. The sea beating against a high auriferous hill had left a wide beach containing much gold, which was mixed with sand that was very rich in spots, but was shifted about under the influence of a heavy surf. A gentleman of much intelli- gence, secretary of a mining company which claimed a por- tion of the beach, examined the place and seriously wrote to his associates that each one would receive at least $43,- 000,000 if the sand proved to be only one-tenth as rich as that which he had examined. Several other similar state- ments were made in corroboration. The mining population were wonderfully excited by these reports, and preparations were made for a large migration to the golden beach ; but more precise information was soon published, and most of the adventurers who had started were disenchanted before the vessels in which thoy were to sail could get to sea. The construction of hundreds of ditches within three or four years after the successful experiment at Coyote Hill gave a great imimlse to placer mining, and had much influence to change its character. Before the water had been carried in artificial channels to the tops or high upon the sides of the hills, nearly all the miners spent their summers in washing the dirt in the bars of the rivers and their winters in work- ing the beds of gullies, which were converted into brooks during the rainy season. In the gullies the supply of pay- dirt was usually small, and the claims were exhausted in THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 81 the course of a few weeks. On the bars the water was below the level of the pay-dirt, and had to be dipped or pumped up by hand. These circumstances were favorable to the use of the rocker ; but the ditch brought the water to places where the dirt was far more abundant and could be obtained with more facility, though it was poorer in quality, and, therefore, the washing of a larger quantity would be necessary to yield an equal profit. New modes of working and new implements must be introduced to accomplish the greater amount of work, and the tom and the sluice came rapidly into use. The tom had been employed for years in the placers of Georgia, and some Georgians had their sluices in Nevada county in the later part of 1849, and in February the following year a party at Gold Run, in that county, finding that the bed of the ravine did not give them enough fall, made a long board trough on the hill-side leading down to their tom, and the pay-dirt from the claim was thrown up to a board platform, and from that thrown up to the head of the trough, and the water carried the dirt down to the tom. The purpose of this trough was mainly to save the labor of carrying the dirt by hand from the claim to the tom ; but the trough having been once built, its value in washing gold was soon apparent. It was, however, the ditch that gave opportunities for the general introduction of the tom and sluice, and in most districts they were unheard of until late in 1850 or 1851. The tom is a trough about twelve feet long, eight inches deep, fifteen inches wide at the head and thirty at the foot. A riddle of sheet-iron punched with holes half an inch in diameter forms the bottom of the tom at the lower end, so placed that all the w^ater and their mud shall fall down through the holes of the riddle and none pass over the sides or end. The water falls from a riddle into a flat box with transverse cleets or riffles, and these are to catch the gold. A stream of water runs constantly through the tom, into the head of which the pay-dirt is thrown by several men, while one throws out the stones too large to pass through the riddle, and throws back to the head of the tom the lumps of clay which reach the foot without being dissolved. The tom was a great improvement on the rocker, but it was soon superseded by a still greater, the sluice, which is a board trough, from a hundred to a thousand feet long, with trans- verse cleets at the lower end to catch the gold. With a descent of one foot in twenty the water rushes through it like a torrent,bearing down large stones and tearing the lumps of clay to pieces. The miners, of whom a dozen or a score may work at one sluice, have little to do save to throw in the dirt and take out the gold. Occasionally it may be necessary to throw out some stones, or to shovel the dirt along to prevent the sluice from choking, but these atten- tions cost relatively very little time. The sluice is the best device for washing gold. It was used in California du- ring the early days more extensively than elsewhere, al- though it has been introduced by men who have been in our own mines, into Australia, New Zealand, Bri- tish Columbia, Transylvania, and many other countries. The sluice, though an original California invention had been previously invented in Brazil ; but it was never brought to much excellence there nor used extensively, and no such implement was known in 1849 in the industry of gold mining. At firstthe sluices were made short, and after- wards lengthened, until some were a mile long, the length being greater a? the gold was finer ; that is, if the surface of the earth in the direction of the sluice was favor- able. There were many little variations in the form of the sluice, to suit different circumstances. The ground sluice is a mere ditch on a hillside or slope, and the miners dig up the bot- tom and dig down the banks, while the water carries away the clay and leaves the gold ; but the dirt at the bottom of the ground sluice must afterwards be washed in a board sluice. The ground sluice has been used to grade roads and to carry away snow irom the streets of mining towns, as well as to wash-gold. In claims where many large stones were found in the pay dirt, and had to be carried by the water through the board sluice, or where the sluice was to be used for a long period, they were paved with stones, be- cause any wooden bottom was rapidly worn out. Soine- times the bed of a stream into which many sluices emptied was converted into a "tail sluice," which yielded a large 6 revenue, with no labor save that of occasionally " cleaning up " or washing out the metal from the sand deposited in the crevices between the stones. Placer Leads Traced to Quartz.— The placer gold had originally been confined in rocky veins which were disin- tegrated by the action of chemical or mechanical forces, and the lighter material was swept away by the water, while the heavier remained near its primeval position. The gold found in the bars of large streams far from the mountains, after having been carried a long distance, is in small smooth particles, as though it had been ground fine and polished by long attrition. In small gullies in the mountains the gold is usually coarse and rough, as if it had suffered little change after having been freed from the quartz by which it was once surrounded. In hundreds of instances the abun- dance of gold in a gully has been traced unmistakably to an auriferous quartz lode in the hill-side above it, and the placer miners, following streaks of loose gold, have been brought to the rocky source from which it came. In this manner the Allison mine and the Comstock lode, not to mention other less celebrated mines or veins, were found. Such discoveries were made in 1850, and in the following year capitalists in New York and London, anxious to get their share of the marvellous wealth of the Sierra Nevada, formed companies to work the quartz mines at Grass valley and at Mariposa. Millions of dollars were invested in machinery, and superintendents, with the wildest ideas, were sent to erect mills and to take charge of the precious metals. All these ventures proved complete failures. In most instances the machinery was utterly useless, and the superintendents utterly incompetent. The castings for the mills lay about the wharves of San Francisco for many years, objects of curiosity for experienced miners, and of ridicule for the general public. In one mill the metal was to be caught in a coarse sieve, and in another the quartz was to be crushed by a rolling ball. The mismanagement was so gross and the losses so severe that foreign capitalists be- came very shy of California quartz mines, and the develop- ment of that branch of industry was much retarded. It was not, however, in quartz mining alone that ridiculous blunders were made. Large sums of money were expended in the eastern states by men who had never seen a placer mine, arid had no correct idea of the nature of the gold deposits, in making machinery to take gold more expedi- tiously from the river beds and bars than could be done by hand. One enterprising New York company sent a dredg- ing machine to dig the metal from the bottom of the Yuba river, never- questioning whether that stream was deep enough in the summer to float such a machine, or whether the tough clay and gravel in its bed could be dug up by a dredger, and entirely ignorant of the fact that the gold is mostly in the crevices of the bed-rock, where the spoon and knife of the skilfiil and attentive miner would be necessary for cleaning out the richest pockets. With the introduction of the sluice, the ditch, and the hydraulic process, it became customary to hire laborers. The pan and the rocker re- quired every man to be his own master. In 1849 each miner worked for himself, or the exceptions were so few that they were almost unknown. The method of working made it impossible for the employer to guard against the dishonesty of the servant, who could always make more in his own claim than any one could aflford to give him. Men become servants usually because they have no capital, and cannot get into profltable employment without it ; but there was no lack of profitable employment for the miner in 1849, nor did he need any capital, even if he had it. But the sluice brought deep diggings, with large masses of pay dirt, into demand, and the claims were held at high prices so that their possession was in itself a capital. There had been an abundance of rocker claims in 1849 ; but there were not enough good sluice claims three years later to supply one-third of the miners. The erection of a long sluice, the cutting of drains, often necessary to carry ofi" the tailings, and the purchase of water from the ditch company, required capital, and the manner of cleaning up rendered it possible for the owner of a sluice to prevent his servants from stealing any considerable portion of his gold before it came to his possession. Thus it was that the custom of hiring miners for wages became common in the placer diggings. In 1852 the wages were $6 or $7 per day; 82 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. the next year about S5, since which time they have gradually fallen. The development of the quartz mining interest was slow and steady, unlike the placer mining, which, rising suddenly to gigantic proportions, soon reached its culminating point, and then began to decline rapidly. The placers had been discovered by miners who were searching for them, and who spent much time and labor in the search ; but in early years most of the richest auriferous lodes were found by men who were not looking for quartz. Hunters, travelers, placer miners and road makers occasionally came, without think- ing of it, upon valuable veins, which they immediately claimed, and proceeded to work or sell. The first quartz miners in California were Mexicans, who knew how gold- bearing rocks were reduced in their native country. They pounded up the quartz in mortars, or, if not rich enough to pay for reduction in that way, they made an arrastra or little circular stone pavement in the centre of which stood a post. To an arm extending out from this was hitched a mule which dragged round a heavy piece of granite, between which and the pavement, the quartz was pulverized, and, when fine, the gold was caught with quicksilver and separated from the base matter by washing. This process required neither capital nor skilled labor, nor delay, nor a number of laborers. The owner of the arrastra could dig out his own rock one day, and reduce it the next. As a matter of profit he usually selected only the richest pieces to work in the arrastra, throwing aside those portions that would not yield at the rate of $75 or more per ton. With experience in the observation of quartz, and a mode of working in which failure was almo5t impossible, these Mexicans frequently did very well. Their success excited the envy of the Amer- icans, who would purchase the claims at high prices, and tell the Mexicans to see the wonders that would be done by American enterprise. The common result was that a large and costly steam-mill was erected ; a multitude of laborers were employed ; they did not know how to select the rich from the poor quartz ; the mill was so large that it could not be kept going at its full capacity without receiving all the poor as well as the rich rock accessible in the vein ; the amalgamator did not understand his buiness ; the rich rook in which the Mexicans had been at work was soon exhausted ; the creditors who had loaned money for the erection of the mill brought suit to foreclose their mortgage; the work stopped ; the title of the property was insecure ; and the people in the neighborhood said that quartz mining was a very uncertain business. And so it is under that system of management ; and that system, leading to failure, was fol- lowed in more than a hundred cases. Mills were built in places where only a little pocket of rich quartz had been found, and if the pay-quartz was abundant it was not properly selected; or, if selected, the amalgamation was intrusted to a man who knew nothing of the business, and the gold was lost. Horace Greeley was near the truth when he said, " I am confident that fully three out of every four quartz mining enterprises have proved failures, or have at best achieved no positive- success." And yet in nearly every case prudent and competent management would have secured success, perhaps on oaly a small scale, because in many instances the quantity of pay-rock was small. But the failure of three-fourths of the quartz mills built in early years did not prevent the continuous increase of mills, and of the yield of gold from quartz. When a miner found a vein yellow with gold, he could not turn his back on it because his neighbor's mill did not pay. Gradually more caution was used ; competent miners and metallurgists became numerous, and the veins were carefully examined as to the quantity of pay-rock before mills were built. As the placers declined the miners were compelled to turn their attention to quartz, and prospecting for quartz became a regular business. Improvement in Mining.— The sluice, though per- fect as a device for washing the dirt, was not the last invention in placer mining. The shovel did not furnish the earth to the sluice fast enough, and the wages of a dozen workmen must be saved if possible. In 1852, Edward E. Mattison, a native of Connecticut, invented the process of hydraulic mining, in which a stream of water was directed under a heavy pressure against a bank or hill-side containing placer gold, and the eai-th, was torn down by the fluid and carried into the sluice to be washed ; thus the expense of shoveling was entirely saved. The man with the rocker might wash one cubic yard of earth in a day ; with the torn he might average two yards ; with the sluice four yards ; and with the hydraulic and sluice together tfty or even a hundred yards. The difi'erence is immense. A stream of water rushing through a three-inch pipe, under a pressure of two hundred feet perpendicular, has a tremendous force, and the everlasting hills themselves crumble down before it as if they were but piles of cloud blown away by a breath of wind or dissipated by a glance of the sun. And yet even this terrific power did not suffice. When the hills have been dried by months of constant heat and drought, the clay becomes so hard that the hydraulic stream, with all its momentum, does not readily dissolve it, and much of the water runs off nearly clear through the sluice, and thus is wasted for the pui-pose.i of washing. The sluice could wash more dirt than the hydraulic stream will furnish when the clay is hard and dry. To prevent this loss, the miner will often cut a tunnel into the heart of his claim, and by powder blast the clay loose, so that it will give way more readily to the water. There have been instances in which two tons of powder have been used at one blast in a hydraulic claim. As the introduction of the ditch led to the use of the sluice and hydraulic power, so the introduc- tion of the latter led to a change in the mining ground. The miners were now able, and they even preferred to attack high hills of gravel, which afforded them an im- mense mass of auriferious earth, and furnished profitable employment to large streams of water for months or even years. Those counties which contained the most extensive districts suitable for the application of hydraulic power were the most prosperous, while the towns dependent on river mining, or on shallow placers fell into decay, and were partially, and in some cases entirely, deserted. Decline of River Mining. — From 1850 to 1856 river mining occupied a very important place in the industry of the State. The beds of all the streams in the auriferous regions were rich in gold, which could only be obtained by taking the water from its natural course by means of dams and ditches or fiumes. The beds being deep, and the banks steep, rocky, and crooked, these enterprises to drain the rivers were very expensive, and they were also very dan- gerous pecuniarily, since only a brief portion of the year was suitable for the work, and an early rain might come and sweep away dam and flume before an ounce of gold had been obtained. The coinb of the Sierra Nevada along nearly its whole length rises almost to the limits of per- petual snow, and the white caps do not difappear or the rivers reach a low stage until late in the summer, so that three months may be considered as the limit of the period in which a river can be flumed and the bed emptied of its gold. _ Every perennial stream of rnuch note in the aurifer- ous districts was flumed at some time in its history, but after 1850 such enterprises became rarities. One of the most costly and remarkable river flumes in the State was erected in 1857 to drain the Feather river at Oroville. It was three- quarters of a mile long and twenty feet wide ; the expendi- tures of the company during the season were $176,P85 and their profits $75,000. They flumed the river again in 1S58, and then lost $45,000. In some of the diggings the auriferous clay is so hard and tough that the hydraulic stream and sluice are unable to dissolve it, and mills were built to crush it fine so that the water in the sluice could get an oppor- tunity to dissolve all the earthy particles and set free the metal. The discovery of gold in Australia, was made in 1851, by a miner from California, and it proved to be equal in magnitude to that of our own State ; and, singular to say, it attracted little attention, and drew from us within two years only about a thousand of our residents, while many thousands were ready to rush to imaginary diggings in other directions. The Miners' Madness.— Placer mining was at the height of its prosperity in 1852 and 1853. Wages were high, employment abundant for everybody that wished to hire out, and there was plenty of ground that would pay, at least, moderately for working with the rocker. But the rich spots were few, and the miners who had shared the prosperity of 1849 were longing for the discovery of some new gold field that would again reward them with an ounce a day. In the lat- THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 83 ter part of 1853, and the beginning of 1854, a series of newspaper letters and articles were published asserting that there were very ricli placers on the head waters of the Amazon in Peru. These articles probably came from the same source, and must have been written with the deliberate purpose of throwing trade into the hands of a few ship- ownerj and merchants. Whatever the design of the writer or writerj may have been, the result was that two thousand miners went from California and Australia to Peru, where they found no placers, nor could they learn of any such place as that mentioned in the articles. The next year was marked by a greater rush to Kern river, in the southern part of the State. Some small placers had been found there, and they served as the basis or the suggestion of a multitude of false letters, asserting that the basin of Kern river was as rich in gold as those of American and Yuba rivers had been in 1849. Thsse statements were copied into the newspapers, which had no means of verification, and the entire industry of the state was thrown into confusion. Miners abandoned good claims, farm laborers and clerks left their employers, the rate of \vage3 and the cost of mining implements rose in the market, and soon six or eight thou- sand men were on the road to Kern river and as many more were ready to start, when the newspapers began to show the folly of such a rush to diggings that had a& yet produced no considerable amount of gold. The tide of migration was arrested, and soon it turned back, the-'dis- appointed adventurers returning with the satisfaction of knowing that every river between the Mariposa and Fea- ther, even aft3r seven years' working, was richer than Kern river had ever been. It was in October, 1855, that a very remarkable discovery was made near Columbia, in Tuo- lumne county. In various parts of the State, the miners in following up rich deposits of gold had come upon what appeared to be the channel of ancient rivers, which had been filled up and covered over with beds of clay and gravel in some places a thousand feet deep. The high banks, the bars, the bends, the rapids, the deep places, the tributary guUiea and brooks, the water-worn gravel, the remains of fresh-water mollusks, the flat stones pointing down stream, the heaps of gravel formed by eddies, the drift-wood, and the deposit of coarse gold in the centre and deep places of the channel — unmistakable evidences of a stream that had ex- isted for centuries — were all distinctly recognizable. In these ancient rivers the gold was distributed in the same manner as in those of the present geological era, but in greater abundance and usually in larger particles, as though it had not been subjected to so much wear. The primeval streams were intersected in places by water courses of our own day, and these latter were usually richer just below the points of intersection than at any other places. The largest and most noted of the ancient river beds discovered before 1867 in California, called the Blue lead, runs nearly through the middle of Sierra and Nevada counties, has a width varying from a hundred to three hundred yards, and has been traced nearly forty miles. Its course is at right angles to that of the present streams in the same neighbor- hood. The amount of gold taken from its. bed has never been ascertained, but it could not have been, up to 1868, less than $25,000,000, and perhaps twice as much. New Discoveries. — The traveller in the mining dis- tricts frequently sees " table mountains ;" that is, high rocky elevations, with flat surfaces and steep sides. They are evidently remains of lava floods, from which the earth, by which they were once surrounded, has been washed away, leaving the basalt towering above the adjacent country. The most remarkable of these table mountains is in Tuo- lumne county, through which runs the Stanislaus river, and with the same general course. Its length, with its bends, is about thirty-five miles, its height from three hundred to one thousand feet above the clay and gravel near it, and its width from a quarter t"i half a mile. The smoothness of its surface, the gradual inclination to the westward, the basal tic nature of the rock, its proximity to a center of great volcanic activity, and various other circumstances which cannot be stated here in detail, leave no room for doubt that this table mountain is a solidified bed of lava. Some miners, sinking a shaft at a place where the lava had been carried away, leaving the sandstone or gravel under it bare, found gold, and some other miner*, working along the side of the mountain, found a rich streak of pay-dirt, which ran down in a deep rocky channel obliquely under the mountain. They atJempted to follow it, but they soon met a body of water, which they could neither avoid nor pump out. This put them on nettles. Further examination showed that there were other little channels running under the mountain and on both sides, and all going deeper as they went further in, and nearly all tending westward, with a course oblique to that of the mountain, and all containing more or less gold. There must, then, be an ancient river bed under the mountain. This opinion, advanced by a few men without education, who wished to induce wealthy men to undertake the exploration of the mountain by tunnels, was met by incredulity and ridicule. Nevertheless, the projectors of the scheme had got the idea fixed in their minds, and they were determined to see what the mountain was made of. The storekeepers, in accordance with the general custom of assisting in developing the resources of their own neighbor- hood, willingly trusted them for provisions, tools, and clothes, while they were cutting a tunnel to reach the bed of the supposed ancient river. They commenced their work at some distance from the basalt, and after cutting through clay and gravel reached a slate rock, which seemed to have been the ancient bank, and then they came to a bed of gravel of such character that the theory of the primeval river was fully established. But the tunnel was not deep enough. It was far above the bed rock, and the water stood, as before, between the miner and the gold. Months of labor had been lost, and it was uncertain whether the next tunnel would strike the right level, nor could it be known whether the bed would be rich enough to pay. Nevertheless, hope and confidence are the chief divinities of the miner. He is happy in their smiles even when priva- tion is his companion and when experience tells him that no gold fortune is in store, they continue to sustain him. The Table mountain prospectors, however, had reason and experience, as well as liope and confidence, to cheer them, and the second tunnel was undertaken with the encourage- ment of many men who had sneered at the first. The right elevation had been struck this time, the bottom of the river bed was reached and was drained by the tunnel, and the gravel was found to be extremely rich. Ten feet square of superficial area yielded $100,000. A pint of gravel not unfrequently contained a pound of gold. The whole mountain was soon claimed. The State echoed with the discovery. A stream of lava had filled up the bed of an ancient river for thirty miles, and in the course of ages the earth and slate that once formed the banks were washed away, leaving the basalt to mark the position of the golden treasure. Other similar deposits were found elsewhere, and other explorations, as bold in their conception but less successful or less impori3,nt in their results, were undertaken in nearly every county. The years 1856 and 1857 were marked by no peculiar excitement or sudden change. The working of the gullies and river bars and beds was gradually becoming less profitable and productive, the quartz and, ditch interests continued to grow larger, wages kept their downward tendency, and the number of hired laborer? increased. In 1858 the State received a shock that was felt in every fibre of her political and industrial organization. Rich diggings were found in the spring on a bar of Eraser river, and it was asserted and presumed that there were large tracts of excellent placers in the upper basin of the stream. The presumption was not without its foundation in experience and reason, but after all it was but a presumption. The miners, however, were not disposed to listen to any doubts ; they were ready to sacrifice everything in the hope of finding and being the first to enjoy another virgin gold field like that of California. In the course of four months, 18,000 men, nearly one-sixth of all the voters in the State went to Fraser river, and many thousands of others were preparing for an early start. The confident belief prevailed that " the good old times " of '49 were to come again. Servants threw up their positions, farmers and miners left their valuable property, wages rose, houses and land fell in value, and many persons believed that California would soon be left without a tenth part of her population. All this excitement was made before any gold had been received in San Francisco, and before there was any direct and trust- worthy evidence of the existence of paying diggings beyond 84 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. the limits of a few bars, wliich could not give occupation to more than a hundred men. Suddenly, and with no material addition to the evidence, the conviction burst on the people that Eraser river would not pay, and five-sixths of the truant minero had returned before the end of the year. The Comstock Lode and Washoe Fever.* — A party of emigrants discovered placer diggings on Gold cafion, a little tributary of Carson river, east of the Sierra Nevada, in 1849, and a permanent mining camp was established there in 1852. It was observed that the gold contained a large proportion of silver, in some claims nearlyone-half in value, but this fact was not without precedent in the placers of California, and was regarded simply as a misfortune for the miner, who did not receive more than $10 or $12 an ounce for his dust, while that obtained on the western slope of the Sierra usually sold for $17 or S>18. The Gold canon diggings had been worked for seven years, and gave employment to about fifty men, when, in the spring of 1859, the miners, following up a rich streak of placer gold, came upon a quartz lode in the place now known as Gold Hill. A couple of months later, some miners, in following up a placer lead in which the gold was mixed with about an equal weight of silver, came on the lode from which the metal had been washed down.f They were working here in a rude way, with no idea of the value of their claim, when James Walsh, an intelligent quartz miner from Grass valley, passed their place and examined their mine. His attention was attracted by the dark gray stone which he suspected was silver ore, * The credit of this discovery has been claimed by so many par- ties, and the testimony is so conflicting, that we are induced to give two of the popular versions. Substantially they agree upon the main points. t S. H. Marlette, surveyor general of Nevada, in his annual report for 1865, gives the following history of the. discovery of the Com- stock lode : " In 1«52, H. B. and E. A. Grosch or Grosh, sons of A. B. Grosh, a Universalist clergyman of considerable nots, and editor of a Universalist paper at Utiea, New York, educated metallurgists, came to the then Territory, and the same or the following year en- gaged in placer mining in Gold canon near the site of Silver City, and continued there until 1857, when, so far as 1 can learn, they first discovered silver ore, which was found in a quartz vein, prolj- ably the one now owned by the Kossuth Gold and Silver Mining Company, on which the Grosh brothers had a location. Shortly after the discovery, in the same year, one of the brothers accidentally wounded himself with a pick, from the effects of which he sooii died, and the other brother went to California, where he died early in 1858, which probably prevented the valuable nature of their dis- covery from becoming known. In the mean time placer mining was carried on to considerable extent in various localities, princi- pally in Gold canon. In 1857, Joe Kirby and others commenced placer mining in Six Mile canon, about half a mile below where the Ophir works now are, and worked at intervals with indifferent suc- cess until 1859. On the 22d day of rebi;^ary, 1858, the first quartz claim was located in Virginia mining district, on the Virginia crop- pings, by James Finney^ generally known as Old Virginia, from whom the city of Virginia and the croppings have taken their name. This must be considered the first location of the Comstock lode, un- less we consider the Kossuth claim as upon one branch of the Comstock, which may not be impossible iu case we adopt the one lode svstem, for the lode is about one hundred feet in thickness, and its strike would take it to the eastern slope of Mount Davidson, as explorations prove, as I have been informed the Virginia croppings to be the outcrop of the western portion of the Comstock. The dis- covery of rich deposits of silver ore was not made until June, 1859, when Peter O'Reilly and Patrick McLaughlin, while engaged in gold washing on what is now the ground of the Ophir Mining Com- pany, and near the south line of tlie Mexican Company's claim, un- covered a rich vein of sulphuret of silver in an excavation made for the purpose of collecting water to use in their rockers in washing for gold. This discovery being on ground claimed at the time by Kirby and others, Comstock was employed to purchase their claim, whereby Comstock's name has been given to this great lode, by which those entitled to ' the credit of its discovery have been de- frauded — a transaction, to compare .".mill things with great, as dis- creditable as that by which Americus Vcspucius bestowed his name upon the western continent, an honnr due alone to the great Colum- bus. Prom this discovery renilted the marvellous growfli of Nevada. Immediately the lode was claimed for miles; an unparalleled ex- citement followed, and miners and capitalists came in great numbers to reap a share of the reported wealth. The few hardy prospectors exploring the mountains for hidden wealth soon counted their neighbors by thousands ; soon walls;ed along miles of busy streets, called into existence by the throng of adventurers, and soon the prospectors were ransacking almost every part of the (at present) State of Nevada in search of .silyer Ipdes. , and as an assay of it he sent a ton and a half of it to San Francisco, where it was sold for $3,000 per ton. He and some friends then bought out four of the five partners, pay- ing $22,000 for four-fitths of 1,800 feet, or at the rate of $14 per foot. Some shafts sunk on the vein showed that the gray stone, a rich sulphuret of silver, could be obtained in large quantities. The lode was soon claimed as far as it could be traced, and the market value of the shares rose so rapidly that before the end of the year $1,000 a foot had been ofiered for a portion of the lode. The excitement about the silver mines spread throughout California in the spring of 1860, and thousands of miners crossed the mountains to work in the newly-discovered mines or to seek for others. In every town companies were formed to equip and send out prospectors, and the work was continued on a large scale for three years. Thousands of square miles, never before visited by white men, were explored and examined, and many thousands of metalliferous lodes were found and claimed. It was in 1860 that the silver districts of Esmeralda, Bodie, Potosi, Coso, and Humboldt were discovered, besides many others of less note. The chief silver mining town grew up at the Comstock lode, and was soon the home of a large and excited population. Every' man owned thousands of feet of argentiferous lodes, and considered himself either possessed of a fortune or certain of soon acquiring one. The confidence in the almost boundless wealth of the country was universal, but -jnany were bothered to convert their ore into ready cash. Men who considered themselves millionaires had sometimes not enough money to pay for a dinner, and in their dress they looked like beggars. The following extract from a letter written at Virginia, in April, 1860, gives a picture of the condition of society there at that time : " Of a certainty, right here, is Bedlam broke loose. One cannot help thinking, as he passes through the streets, that all the insane geologists extant have been corraled at this place. Most vehement is the excitement. 1 have never seen men act thus elsewhere. Not even in the earlier stages of the California gold movement were they so delirious about the business of metalliferous discovery. Hundreds and thousands are now here, who, feeling that they may never have another chance to make a speedy fortune, are resolved this shall not pass unimproved. They act with all the concentrated energy of those having the issues of life and death before them. They demean themselves not like rational beings any more. Even the common modes of salutation are changed. Men, on meeting, do not inquire after each other's health, but after their claims. They do not remark about the weather, bad as it is, but about out-eroppings, assays, sulphurets, &e. They do not extend their hands in token of friendship on approaching, but pluck from their well-filled pockets a bit of rock, and, presenting it, mutually inquire what they think of its looks. During the day they stand apart, talking in couples, pointing mysteriously hither and yon: and during the night mutter in their sleep of claims and dips and strikes, showing that their broken thoughts are still occupied with the all-absorbing subject. I shall be able to convey to your readers some idea of the intensity of this mining mania, wlien 1 assure them that this portion of the American people do not even ask after newspapere, nor en- gage in the discussion of politics. Little care they whom you choose President ; conventions and elections, wars and rumors of wars, are nothing to them. They have their own world here. Here, bounded by the Sierra and the mountains of Utah, spread over the foot-hills and the deserts, is a theatre beyond which their thoughts are not permitted to roam ; to this their aspirations and aims are all con- fined. Whatever of energy, ambition, and desire are elsewhere ex- pended on love, war politics, and religion, are here all devoted to this single pursuit of finding, buying, selling, and trading in mines of silver and gold. Everybody makes haste to be rich; and so great is the mental tension in this direction, that itmav well be questioned whether, if a sweeping disappointment should overtake them, many will not be reduced to a condition of absolute lunacy. Vv'hat guai'an- tee this wildly-excited multitude have against thehapponing of this fearful contingency, I am not fully prepared to say, having, as yet, not been able to give the subject niuch examination since niy return. To attempt eliciting information from tliose now here, only tends to confuse and complicate what is already incomprehensible. If you talk with one man, he is onlyconoerned lest the argentiferous metal be rendered worthless by the superabundance here' met with ; while another, with equal opportunities, and perhaps batter ability for forming a correct judgment, derides the idea of lliero being" any .silver apart from the Comstock vein, telling you that tlie whole thing is an inverted pyramid, having that truly wonderful lead for a base." ■ Manipulation Troubles.— There was much difficulty in extracting the metal even from the richest ore. There were no mills to crush the rock, no skilful metallurgists to THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 86 reduce the ore, and no confident opinion in regard to the best means of extraction. The simple processes used for re- ducing auriferous quartz would not suffice. The gold exists in the metallic form, and so soon as the rock is pulverized can be obtained by washing or amalgamation. But silver is in chemical combination with baser substances, and must be separated from them by chemical influences before the metal will submit to unite with quicksilver, by which it must usually be caught. All the silver produced in civilized countries was obtained by two processes, the Frieberg Ger- man barrel, and the Mexican yard or patio. In the German process three hundred pounds of the ore, finely pulverized, are mixed with water to the thickness of cream, and after the addition of some salt, iron pyrites, scraps of iron, and quicksilver are put into a strong barrel, and kept revolving rapidly for fourteen hours, at the end of which time the sil- ver and quicksilver have united, and they can easily be separated from the mud by washing. The barrels are rapid- ly worn out, the amount of work done is little, and the labor required is much. In the Mexican process the pulverized ore is mixed with water, salt, iron pyrites, and quicksilver, and left out in an open yard for three weeks, the mass being stirred or trodden with mules occasionally. This mode of reducing is very slow, and is unsuited to the cool climate of Nevada, in latitude 38°, and at an elevation of 5,000 or 6,000 feet above the sea. There was a general belief that some mode of amalgamation better than either of these could and would be devised, so while one set of men were engaged in hunting and opening mines, another set were busy in studying a mode for reducing the ores. A satisfactory result was not reached for several years, but it came at last in the invention of the pan process, as distinguished from the bar- rel and yard processes. . The pan was of cast-ircm, about five feet in diameter and eighteen inches deep. Five hundred or a thousand pounds of ore were put in with salt, iron pyrites, quicksilver, and enough water to make a thin mud. A'muUer revolved on the bottom of the pan, and served to grind the matter, which was not fine enough, and also brought all the particles of the ore into contact with the chemicals and the quicksilver. Besides the motion of the muUer, various devices were used to keep up a regular cur- rent, so that all portions of the mixture were successively brought to the bottom, and exposed to the action of the quicksilver. In some pans heat was applied. The American process extracted silver from the common sulphuret ore as thoroughly as any other process, with much more rapidity, and with less expense. It was, therefore, in almost univer- sal use in the American silver mines of the Pacific slope, and has been introduced into Mexico. White the metallur- gists were working away at their pans, the miners generally were afraid to erect mills lest buildings and machinery might be unsuited to the new modes of working. The mills that were built charged $50 and $60 per ton for crushing and amalgamating, though the same work was done at Grass Valley, only one hundred miles distant, for less than $5 a ton. The amalgamation was so conducted that only the free gold was saved. All the silver and much of the gold were lost. Ore that contained $500 to the ton was sent to the mill if it yielded $70 or $80, leaving about $10 profit, and a los? of $400 of silver. The value of the ore and the amount of silver lost were precisely understood, but there was no' remedy. It was necessary to take some silver from the mines at any sacrifice to keep up the confidence of the share- holders. Although the ore in sight was worth millions, the bullion sent across the mountains from Nevada amounted to only $90,897 in 1860. The next year, however, the ex- port rose to $2,275,256 ; in 1862 to $6,247,074, and in 1863 to $12,486,238. This increased rate might well astonish the world, and dazzle people in the vicinity. New Developments.— The silver excitement which pervaded California in the spring of 1860 continued to increase steadily for three years. Washoe, by which name the mining region near the Comstock lode was generally known, was the main topic of conversation, and the main basis of speculation. Everybody owned shares in some silver mine. High prices were paid to strangers for mines at places of which the pur- chaser had never heard until a day or two before the purchase. Men seemed to have discarded all the dictates of prudence. Their judgment was overwhelmed by the suddenly acquired wealth of a few and by the general anxiety of the many to buy any kind of silver shares. People acted as though there were so many rich silver mines that men who had been searching for them would not be so mean as to offer a poor one for sale. Three thousand silver mining companies were incorporated in San Francisco, and 30,000 persons purchased stock in them. The nominal capital was $1,000,000,000, but their actual market value never exceeded $60,000,000, and not one in fifty owned a claim of the least value. And yet the organization of each company cost $100 on an average, and that money had to be paid by somebody. Although the mines were in Western Utah, which was organized after- wards into the Territory and then into the State of Nevada, the shares were mostly owned in San Francisco, and that place was the centre of speculation and excitement, of profit and loss. On every side were to be seen men who had made independent fortunes in stocks within a few months. The share in the leading mines on the Comstock lode were the preferred security for loans by money lenders and banks. The shares, or feet, as they were most commonly called (for in most of the companies a share represented a lineal foot lengthwise on the vein), of the Comstock claims advanced with great rapidity, in some cases as much as $1,000 per month. A foot of the Gould and Curry mine, worth $500 on the 1st of March, 1862, was sold for $1,000 in June ; for $1,550 in August ; for $2,500 in September ; for $3,200 in . February, 1863 ; for $3,700 in May ; for $4,400 in June, and for $5,600 in July. Other claims advanced with a rapidity less rapid but scarcely less startling. In the middle of 1863, Savage was worth $3,600 per foot ; Central $2,850 ; Ophir $2,550 ; Hale and Norcross $1,850 ; California $1,500 ; Yel- low Jacket $1,150; Crown Point $750; Chollar $900, and Potosi $600. Virginia City, the centre of the mining in- dustry, rose to be the second town west of the Kocky moun- tains. It had a population of 15,000, and the assessed value of its taxable property was $11,000,000. The amount of business done was twice as great as in any other town of equal size in the United States. And well might the town be large and busy. It produced more silver within a year than any other one mining district of equal size ever did. Neither Potosi nor Guanajuato could equal it. The former town yielded $10,000,000 annually for a time, but with that yield supported a population of 160,000. In 1863 it may be doubted whether any town of 15,000 persons ever before produced an average of $12,000,000 annually, or an average of $800 to the person. Well might excitement run high, and money be flush. But though the silver yield kept up, distrust set in, and prices of stocks commenced to fall in the summer of 1863. The people began to count up how many millions they had paid as assessments on claims that had been worked for years and had never yielded a cent. Ex- perts from other silver mining countries said that no rich and permanent deposits of silver had been opened, save on the Comstock lode, and that the management of the mines there was grossly wasteful. It was a notorious fact that many companies had been or- ganized for the purpose of swindling the ignorant by selling worthless stock to them. Prices declined slowly until the middle of the next year, and then they were attacked by a panic which smote hundreds of the Washoe speculators with terror and bankruptcy. Gould & Curry fell from $5,600 to $900 per foot ; Savage, from $3 600 to $750 ; Ophir, from $2,550 to $425 ; California, from $1,500 to $21 ; Hale & Nor- cross, from $1,850 to $310, and others in like proportion. The wild-cat or baseless speculations were swept away to destruction by the thousand, and never heard of more. The dray-men, the hod-carriers, the mechanics, the clerks, the seamstresses, the servant-girls, who had cheerfully paid assessments for years, in the confidence that they would soon have a handsome income from their silver mines were disenchanted. The name of Washoe, which had once been blessed, was now accursed by the multitude, though still a source of profit to a few. People wondered how they could have been so blind. It was found on examination that the most deliberate and most dishonest deception had been sys- tematically practiced in many cases. Most of the mines had been managed not with the object of taking silver from the ore, but for the purpose of making profit by the sale and purchase of stocks. The officers, or some of them, com- bined to raise or depress the shares as suited their schemes. It was an easy matter to instruct the miners to- take, out the 86 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. richest or the poorest of the ore, and the returns of the mill could be published as a fair indication of the value of all the ore within sight. " When a bulling operation was in pro- gress the superintendent would write glowing letters ; rich rock, selected froni a large mass of poorer material, would be sent to mill ; debts would be incurred to be paid in the future, and large dividends would be declared. If a ' bear- ing' operation was in contemplation, the rich deposits would be avoided ; the rock sent to mill would prove to be very- poor; assessments would be levied to payoff the debts of the company; suits would be commenced against it, and every device that could discourage stockholders would be adopted." In the erection of buildings the financial manage- ment of the companies was grossly extravagant. Money waj thrown about almost as if it had no value. It was pre- sumed that the rich and extensive deposits found near the surface, instead of being exhausted, would become still richer as the works advanced in depth. The ignorance of metallurgy and lack of experience in silver mining led to many costly mistakes. Wages much higher tlian those of California were paid. The overestimate of the value of the mines was one of the causes of a great litigation, for which opportunities were given by the careless manner in which claims were located, recorded, and transferred in early times. The lawyers charged fees high almost beyond ex- ample. Witnesses who found that their testimony was necessary in important suits suddenly had business in the eastern states, or in snme other remote place, and could not be persuaded to remain till the trial unless some large sums of money were paid to them. Subornation of perjury be- came a profession in which many engaged. So much money was spent in a law-suit that it materially affected business. When the trial of the suit between the Ophir and the Burning Moscow was transferred from Virginia City to Aurora, property in certain parts of the latter town rose fifty per cent., so confident were the residents there that the attendants at the court would be numerous and flush of money. In several cases more money was spent in litiga- tion than the entire mine was worth. The surveyor general of the state, in his report for the year 1865, says : " I have understood that $1,300,000 have been expended in liti- gation between the ChoUar and Potosi corapanie'i, and $1,000,000 more have besn expanded in the Ophir-Moscow trials. * * * I believe one-fifth of the proceeds or the Com^took would not more than pay the expenses of litigating the title thereto." The yield of the Comstock lode, up to the date of that re- port, was about §45,000,000 ; so Mr. Marlette's estimate of the amount spent in litigation would be $9,000,000, and four-fifths of this was expended within a period of three years. The sum paid as dividends to stockholders in many permanent mines was less than that expended in litigation. One of the- main sources of the lawsuits was the doubt whether the Comstock lode had at its side a number of branches, or whether it was one of a series of independent and parallel lodes within a distance of two hundred yards. At the surface several seams of ore were perceptible, and the first claimants had taken the seam which was largest and lowest on the hill, and they asserted that the seams above were mere branches. This assertion, however did not pre- vent others from claiming the other seams, and thus arose the suits between the Ophir and the Burning Moscow, that between the Gould & Curry and the North Potosi, and thsit between the Potosi and the Bajazet, which were all cases of mu3h importance in their day. The people were divided be- tween the one-lode and the many-lode parties, and elections turned more than once on that question. Most of the stock of the one-lode companies was held in San Francisco, while a larger proportion of the stockholders of the many-lode com- panies were residents of Virginia City, so it was argued that it was the interest of Nevada that the old companies should be defeated. But the latter had the evidence of geology, and what was, perhaps, still more important, the money, on their side, and the many-lode theory was at last completely overthrown, but not until after a struggle that cost years of time and millions of money. The Comstock vein has a dip of 45' to the horizon, and while it was in the process of forma- tion large bodies of porphyry split off from the hanging wall, fell down into the vein stone and were there suspended, leaving a seam of quartz above as well as one below. These pieces of hanging wall are usually long, narrow and deep, but not large enough in any direction t.-) make two lodes out of one. Another source of disappointment to the mining companies was that as the works advanced in depth ex- penses increased in an unexpected manner. The immense excavations for the extraction of ore i-equired vast quan- tities of timber ; as the forests were distant and transporta- tion dear, the mines were compelled to pay three-quarters of a million dollars annually for timbering alone. The water increased, and powerful engines, consuming much wood, were required to pump constantly at an expense of $100 per day to each of half-a-dozcn companies. Foul air made it impossible for miners to work rapidly in the deep drifts, and ventilation was expensive. These, and a multitude of other considerations, contributed to the panic and kept the general stock market down. But such influences could not entirely govern the price of particular stocks. Gould & Curry, which was sold for $900 per foot in July. 1864, ad- vanced to $2,000 in April, 1865, and fell to $600 'in October, 1866. Savage was $7,000 in April, 1865, and $1100 in October, 1866. Of stocks, which were not noticed in the stock-boards in the summer of 1864, Yellow Jacket rose in April, 1865, to $2,590 per foot, and was sold in October, 1866, for $700 ; Bel- cher, worth 81,650 in April, 1865, was offered for $95 in Oc- tober, If 66. Alpha, worth $2,100 in April,1865, was worth only $50 in October, 1866, and Crown Point fell from $1,225 in April, 1865, to $950 in October, 1806. A fall of fifty per cent, or a rise of two hundred per cent, in the market value of a large mine within the space of six months was nothing very unusual, and it is easily understood that in such events fortunes were made and lost with great rapidity, and that the mining days in the Pacific slope from the date of the gold discovery in 1848 to 1865 were, exciting, busy days, days of millions, days of poverty, ruin and death as well as of affluence, and the wild riot of the baser passions. — Compiled from J. Eosa Erovjne's Eqports. A CENTURY OF MINING AND METALLURGY IN THE UNITED STATES. MINING enterprises were among the motive powers to the exploration, conquest, and colonization of the New World. The desire to find a shorter route to the profitable trade of India, and the desire to conquer new territory wherever it might be found, in the name of some Catholic or Protestant sovereign of Europe, were accompanied both in North and South America, by eager hopes of the discovery of gold and silver. The history of the plunder of the metallic wealth and the development of the mineral resources of Mexico and South America, does not lie within our present purpose. The early enterprises of this kind in the northern part of the continent were less successful, though the progress of two hundred years has made them more beneficial to national prospcritv, for reasons which I shall, perhaps, be able to indicate. Gold was found in moderate quantities in use among the Indian tribes of the present Southern States. The Spaniards under De Soto, following this clue, and led on by stories, exaggerated or misunderstood, of their Indian guides, made a wide super- ficial exploration in search of the origin of this trcarurc. They are supposed to have excavated many of the diggings in North and South Carolina and Georgia, which are now overgrown with forests. But no rich deposits appear to have been discovered, and no permanent operations under- taken. In the great charter of King James, by which, in 1600, the right to explore and settle the North American continent from the thirty-fourth to the forty-fifth parallel was granted to the London and Plymouth Companies it was provided that one-fifth of the gold and silver, and one fifteenth of the copper, which might be discovered, should belong to the crowu. One of the earliest expeditions of THE MIXES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 87 Captain John Smith, in Virginia, was the exploration of the Chickahominy River, in the hope that it might consti- tute a water-way to tlie Pacific Ocean ; and one of the next events in the history of the same colony was a mining excitement, such as would be called in our California tongue a " stampede," caused by the supposed discovery of gold ; in whish, fortunately, John Smith did not avail himself of his official position to take " stock." It is a curious circum- stance that gold really occurs in that region, though the glittering dust, of which a ship-load was sent by the deluded colonists to the jewelers of London, proved to be but mica or iron pyrites ; and it Reems probable (albeit this sugges- tion is mt based upon any. explicit record known to me) that the presence of gold among the Indians, and the dis- covery of specimens of the quartz or slates of Virginia, con- taining visible particles of it, gave rise to the general ex- citement, under the influence of which, without further tests of value, a large amount of worthless material was collected, to the neglect of necessary and profitable industry. From this point of view the Jamestown mining fever was the prototype of many that have since occurred — all of which may be summed up in the general expression, that the mine " did not pan out according to the sample"." A more promising industry was inaugurated at the same time by the sending of a quantity of iron ore from James- town to England in 1608. This ore, smelted in England, yielded seventeen tons of metal, probably the first pig-iron ever made from, North American ore. In 1620, a hundred and fifty skilled workmen were sent to the colony to erect iron-works ; and it is said that a fund, subscribed for the education of the colonists and Indians, was invested in this enterprise, as a safe and sure means of increase. But, in 1622, an Indian massacre broke up the enterprise ; and both the manufacture of iron and the education of citizens and Indians have been obliged ever since, to rely upon other sources of support. According to the statement of Colonel Spotswood, quoted by Mr. Pearss, it appears that, previous to 1724, neither New England, Pennsylvania, nor Virginia, possessed blast fiirnaces. Their product of iron was from bloomeries only. According to Prof. Hodge, quoted by Prof. Whitney, how- ever, a furnace was built at Pembroke, Mass., in 1702 ; and another authority states that, in 1721, New England pos- sessed six furnaces and nineteen forges. In 1719 was passed the famous resolution of the British House of Commons, " that the erection of manufactories in the colonies tended to lessen their dependency on Great Britain." Only the earnest protest of the colonial agents prevented the prohibi- tion at the time of the American iron manufacture. The next thirty years witnessed two instructive contests. The first was that of the colonial with the domestic pig-iron manufacture — a, competition in which America was favored by her abundance of her vegetable fuel (the employment of mineral coal in iron-making not having yet found introduc- tion), in comparison with the rapidly waning forests of Great Britain. The British manufacture being protected by heavy duties on colonial pig-iron, the latter began to be more and more worked up into bar-iron, nails, steel, etc., at home ; and this brought on a new competition with the British manufactures of these articles. In 1750, a further legislative attempt to regulate this trade was made by Par- liament, which decreed the admission of colonial pig-iron duty free but prohibited the erection in America of slitting, rolling, or plating mills, or steel furnaces, ordering that all new ones thereafter built should be suppressed as " nuisances." It will be recollected that arbitrary acts of this kind, for the destruction of our infant manufactures, were among the grievances cited in the Declaration of Independence. The extent of the American iron manufacture, during the ante- revolutionary period, can be inferred only from scanty re- cords of exports. These, beginning in 1717 with three tons, had increased, in 1750, to about 3000 tons ; in 1765, the to- tal is reported at 4342 tons ; and, in 1771, at 7525 tons, the maximum annual report. The outbreak of the war of course put an end to exportation and caused a great demand for war material, which occupied and rapidly extended the manufacture possessed by the country. The expanded iron industry suffered a severe collapse when, at the close of the war, not only this demand ceased, but the reopened ports admitted large quantities of foreign iron— the successful em- ployment of mineral coal, the steam engine and puddling having by that time laid the foundation of English supre- macy in the iron manufacture. The earliest copper-mining company of which we find any record — according to Prof. Whitney, in his excellent work on the metallic wealth of the United States, the earliest incorporated raining company of any kind — was chartered in 1709, to work the Simsbury mines, at Granby, Conn. These mines were abandoned in the middle of the eighteenth century, afterwards bought by the State of Connecticut, and used as a prison for sixty years. Mining was resumed in them about 1830, and after a few years they were again aban- doned. The ores were mostly shipped to England, and seem to have been lean. The deposit belongs to the class of ir- regular bunches, nodules, seams, or limited beds, in the New Red Sandstone, near its junction with trap. This formation was the scene in New Jersey, also, of early mining activity. The Schuyler mine, near Belleville, on the Passaic, was dis- covered about 1719, and proved more profitable to its own- ers before the Revolution than it ever has been since that time, to any of the series of individuals and companies that have expended large sums in its development. In fact, the chief blessing conferred upon mankind by the Schuyler mine arises from the circumstance that thefirst steam engine ever built wholly in America was constructed in 1793-4, at the small machine shop attached to the smelting works at Belleville, Mr. Hewitt being the pattern-maker in the party of mechanics sent out by Boulton & Watt for the purpose of erecting an engine forthe Philadelphia Water-works in Cen- tre Square. In 1751 a copper mine was opened near New Brunswick ; and the Bridgewater mine, near Somerville, was operated previous to the Revolution, though even then, it is said, with much loss of capital. New Jersey's record in copper-mining is not a cheerful one ; but her unsurpassed ranges of iron ores may well console her. Betrayed by the treachery of Triassic and trap, she can flee to the shelter of the crystalline schists. Pennsylvania was not without her copper-mining in the colonial period, the Gap mine, in Lan- caster County, having been opened in 1732. Already during the colonial period the first red gleams of the future glory of the Lake Superior mines had appeared. The intrepid Jesuit fathers, Marquette and others, who penetrated the wilderness from Acadia to the Gulf, to carry both the Cross of their religion and the Lilies of their Sov- ereign, had made extensive explorations on the Upper Peninsula, and published glowing accounts of the abund- ance of copper, to which later travelers added legends of gold and precious stones. Before them the Indian tribes, whose stone tools now furnish subjects of inquiry to the archeologist, had wrought rudely upon the deposits which nature had left in a condition so exceptionally pure as not to need, for the production of limited amounts of metal, the intervention of metallurgical process. The first recorded mining operations on the part of white men were those of Alexander Henry, near the Forks of the Ontonagon, in 1771. As is well known, however, the active development of this region dates from the publication of Houghton's Geological Report, in 1841, and the extinguishment of the Chippewa title by the treaty of 1843. Lead mining in this country may also claim an ancient origin — as we reckon antiquity. As early as 1651, Governor John Winthrop received his famous license to work any mines of " lead, copper, or tin, or any minerals as antimony, vitriol, black-lead, alum, salt, salt-springs, or any other the like," and " to enjoy forever said mines, with the lands, woods, timber, and water within two or three miles of said mines." As he received also a special grant of mines or minerals in the neighborhood of Middletown, Conn., it is not unlikely that the old Middle- town silver-lead mine, the date of the discovery of which is not precisely known, was opened by him or his successors. The nickel and cobalt mines near Chester, in Connecticut, once held to be very promising deposits, are also believed to have been originally worked by Governor Winthrop ; but nickel was not valuable in those days; and the lead and copper in these ores do not seem to have been abundant. Unfortunately, now that nickel and cobalt are so valuable as to repay amply the cost of extracting them when they are present in a small percentage only, these Connecticut ores no longer correspond (if indeed they ever did) to the analysis and accounts formerly given as to their niccoliferous 88- THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. character. The old Southampton silver-lead mine, in Massachusette, well known to mineralogists, was com- menced in 1765, by Connecticut adventurers ; but its opera- tions were suspended by the Revolutionary war. Lead mines in Columbia and Dutchess Counties, N. Y., were also worked at an early period ; and, no doubt, all over the country occupied or controlled during the war by the American forces, there were small and desultory surface opera- tions, furnishing lead for the use of the army. The Indians inhabiting the Mississippi Valley before the advent of the whites probably did not understand the metallurgy of lead. Galena has been found in the Western mounds, but, it is said, no lead. In 1700 and 1701 Pere Le Sueur made his famous voyage up the Mississippi, discovering as he claimed, many lead mines. Lead mining was begun in Missouri in 1720, while that country belonged to France, and under the patent granted to Law's famous Mississippi Company. Mine la Motte, named after a mineralogist who came over with Renault, the superintendent, was one of the first dis- coveries. It has been in operation at intervals ever since, and is now successfully managed by Mr. Cogswell, who may, I think, truthfully claim that he has charge of the oldest mining enterprise still active in the United States. The ores yield a small percentage of nickel and cobalt, as well as lead. Id was in 1788 that Dubuque obtained from the Indians the grant under which he mined until the year of his death, where the city now stands which bears his name. The land was subsequently ceded to the United States by the Indians, and the repre- sentatives of Dubuque were forcibly ejected. Such, then, was the condition of our mining industry at the commencement of our national existence. We occupied but a strip of territory on the Atlantic ; and even in that limited area we had scarcely learned the nature and extent of the mineral resources to be utilized. Anthracite and petroleum, quicksilver and zinc, were unknown as treasures within our reach. The rapid extension of possession, gover- ment, population, and industry over plains and mountains to the Pacific, which has been effected in a hundred years, is but the type of a conquest and progress which has advanced with equal rapidity in every department of human labor, and nowhere more notably than in the departments of mining and metallurgy. The tables which accompany these re- marks, show that this country has produced during the cen- tury ending with 1875, of gold, about 66,680,000 troy ounces, worth about $1,332,700 000 ; of silver, about 201,300,000 troy ounces, worth about $231,450,000 ; of quicksilver, 840,000 flasks, or 64,206,000 pounds avoirdupois ; of copper, 200,000 tons ; of lead, 855,000 tons ; of pig-iron, 40,000,000 tons ; of anthracite coal, 351,521,423 tons (the ton in all these cases being 2240 pounds avoirdupois) ; and of petroleum, 76,594,- 600 barrels. The product of these leading industries for the year 1875 were : gold, $33,400,000 ; silver, $41,400,000 ; quick- silver, 53,706 flasks ; copper, 15,625 tons ; lead, 53,000 tons ; pig-iron, 2,108,554 tons ; zinc, about 15,000 tons ; anthracite, 20,643,509 tons ; bituminous coal, about 26,000,000 tons; pe- troleum, 8,787,508 barrels. In order that a clear idea may be formed as to the relative position now held by the United States in the world of mining and metallurgy, I have selected the production of coal, which is the main reliance for power of all organized industry, and of iron, which is the chief agent of civiliza- tion, and as the basis of comparison with other nations, using, so far as coal is concerned, the flgures given in the 42nd Annual report of the Philadelphia Board of Trade, for the year 1873. Great Britain, Unitf d States, Germany, France, . Bol:;ium, Austria and Hungary, R'lssia, . Spain, Portup^al, Nova Sootia, . Australia, India, Otlier countries, . Total . . Tons. Per cent. 127,010,747 40.4 60,512,000 18.4 45,335,741 10.5 17,400,000 C.4 17,000,0110 6.2 11,000,000 4.0 1,200,000 0.5 670,1100 0.2 18,000 — 1,051,607 0.4 1,000,000 0.4 600,000 0.2 100,000 0.4 273,004,055 100,0 The following estimate, in round numbers, of the world's Per cent. 5,991,000 45.2 2,401,000 18.1 1,600,000 12.1 1,360,000 10.3 670,000 4.3 305,000 2.T 300,000 2.7 306,000 2.3 73,000 0.5 73,000 0.5 7,000 — 20,000 0.2 60,000 o.i 9,000 0.1 40,000 0.3 25,000 0.2 10,000 0.1 13,260,000 1.00 present production of iron, is taken from various sources, and may be considered approximately correct. The figures for Great Britain and France are those of 1874, and the product of the United States for the same year has been taken. For other countries the estimates are principally for 1871 or 1872, except Austria and Plungary, tor which the official returns for 1873 have been taken. The quantities are given in tons of 2240 pounds. Great Britain, United States, Germany, France, .... Belgium Austria and Uungary, . Russia Sweden and Norway, . Italy, .... Spain, .... Switzerland, . Canada, . South America, . Japan Asia, Africa, . Australia, An examination of these tables will serve to show that in the products which measure the manufacturing industry of nations. Great Britain stands first and the United States second on the roll, and that there is a clear and almost identical relation between the product of coal and the product of iron. The United States now produces as much coal and iron as Great Britain yielded in 1850. We are thus gaining steadily and surely upon our great progenitor, and in the nature of things, as the population of this coun- try grows, must, before another century rolls around, pass far beyond her possible limits of production, and become the first on the International list, because we have the greatest geographical extent, and our natural resources are upon so vast a scale that all the coal area of all the rest of the world would only occupy one-fourth of the space in which, within our borders, are stored up the reserves of future power. In a hundred years, we have thus far reached a point at which for coal, iron, gold, silver, copper, lead, and zinc, we are independent of the world, with abundant capacity to supply as well our growing wants, as to export these blessings of civilization to other and less favored lands, as soon as our labor and our legislation are adjusted to the conditions which will enable us to compete in foreign markets. One hundred years ago we proclaimed our political inde- pendence, and we maintained it by force of arms ; we are now in a position to proclaim our industrial and commer- cial independence, and maintain it by the force of peaceful agencies against friendly competition. Never was a century of free government celebrated under such favorable condi- tions ; never was free government so justified by the mater- ial results it has produced. But let us not conceal from ourselves the fact that mere growth in wealth, mere devel- opement in industry, mere increase in population are not the best evidences of national greatness ; and unless cur progress in art, learning, morals, and religion keeps pace with our material growth we have cause rather for humilia- tion thanglorification. " Whatsoever things are true, what- soever things are honest, whatsoever things are just, whatso- ever things are pure, whatsoever things are lovely, whatso- ever things are of good report" constitute the real glory of a nation, without which the magnificent material structure which in a century we have reared, will disapear "like the baseless fabric of a vision. " In a hundred years, as I have said, we have reached a point at whichj for every one of the minerals and metals named we are independent of the world, havingthe capacity to supply our own growing domestic demand, also to export to foreign lauds. It is not my purpose to trace in detail the steps by which this degree of progress has been achieved. The narration of succcessive events alone, without any dis- cussion of underlying causes and accompanying effects, would consume far more time than I could command. So far as the leading epochs of the history are concerned, I think they may be fairly summed up in the following brief catalogue : THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 89 1. First of all, must be named the erection in Philadel- phia, in 1794, of the first steam engine in America. We celebrated in 1876 the centennial anniversary of a greater power than the United States of America — a wider revolu- tion than our War of Independence. It was in 1776 that James Watt presented to the world the perfected steam en- gine, all the improvements of which since his day are not to be compared with those which he devised upon the rude machines of his predecessors. In one hundred years, the steam engine has transformed the face of the world and af- fected to its remotest corners the condition of the human race. Few changes have been so profound ; not one in history has been so rapid and amazing. With reference to the special subject now under consideration, if I were asked what elements had most to do with the swift progress of our country, I should answer, freedom and the steam en- gine. But deeper even than any organized declarations or outward forms of freedom lies the influence of the steam engine, which has been from the day of its birth, in spite of law3 and dynasties, and all accidents of history, the great emancipator of man. 2. Gold Mining in the South. — Already Jefferson, in his Notes on Virginia, mentioned the finding of a lump of gold weighing seventeen pennyweights, near the Rappahannock ; and, about the beginning of this century, the famous Cab- arrus nugget, weighing twenty-eight pounds, was discovered at the Reed Mine, in North Carolina. But the great gold excitement in the South followed the discoveries in Georgia, from 1828 to 1830. The maximum of production (probably never more than $600,000 in any one year) was from 1828 to 1845, since which time it has declined, though a few enter- prises, both in hydraulic and quartz mining, are now active- ly prosecuted. 3. The Opening of the Anthracite Coal Fields and the use of Anthracite in the Blast Furnace. — The first of these events practically dates from the year 1820, although some anthracite found its way to market much earlier, and the second from the year 1839. The latter was followed by the development of the vast anthracite iron industry, which has contributed so much to the prosperity of Pennsylvania. The connection between anthracite and civilization was long ago pointed out by Sir Charles Lyell, in connection with his visit to this country, when he observed in Pennsylvania and in Philadelphia, the strange pheno- menon of a vast manufacturing population, dwelling in neat houses and able to keep themselves and their houses clean. This smokeless fuel is a great moral and aesthetic benefactor. It has also proved specially useful in metallur- gy — one process at least, the American zinc-oxide manufac- ture, being impracticable without it ; and in war no one will deny its superiority who remembers how our cruisers burning anthracite, and hence not traceable at sea by their smoke, were able to spy and pursue the blockade-runners, whose thick clouds of escaping bituminous smoke betrayed them. A table of the production of anthracite is given herewith ; and some further observations concerning its control and management will be appropriate under another head of my remarks. 4. The Use of Saw Bituminous Coal in the Blast Furnace. — This was introduced in 1845. 5. The Development of the Copper Mines of Lake Superior, beginning in 1845 and increasing slowly but steadily to i862, when about eight thousand tons of ingot copper were produced ; then declining for some years, to recover in 1868 and 1869 its lost ground, and since the latter year, by reason of the great production of the Calumet and Hecla Mine, to attain an unprecedented yield. The tables of copper pro- duction for the United States, herewith given, show that our present product is not far from sixteen thousand tons, of which three-fourths must be credited to the Lake Superior mines. . ^„.„ ^i 6. TJie Discovery of Gold in California, m 1848, or rather its rediscovery, since it had previously been known to both the natives and the Jesuit missionaries, and also to hunters and trappers. The wonderful direct and indirect results ot this event have been too often the theme of orators, histo- rians, and political economists to need a further description from me. Its direct result in the way of mining was the rapid exploration of the Western territories by eager pros- pectors, and the successive development- of- placer-mines in nearly all of them. It is difiicult to fix the dates of these beginnings ; but we may assume with sufiicient accuracy that gold mining practically began in Oregon in 1852, in Arizona in 1858, in Colorado in 1859, in Idaho and Montana in 1860. With the completer exploration of the country, and the decline of the placer-mines, stampedes have g'own less frequent and extensive than in the earlier days. There is scarcely any corner of the country left, except the Black Hills of Dakota, which has not been ransacked sufliciently to show whether it contains extensive and valuable placer deposits; and those districts which present accumulations of gold in such a way as to oflfer returns immediately to labor without capital have been already over-run. The principal reliance of our gold-mining industry for the future must be quartz and hydraulic or deep gravel mines. These may be expected to maintain for years to come their present rate of production, if not to increase it. In the table of gold pro- duction, herewith given, there is, it is true, a falling off of late years ; but this is to be attributed to the placer-mines. 7. The Commencement, about 1851, of Regular Mining Operations at the New Almaden Quicksilver Mine, in Cal- ifornia. — The production of this metal in the United States has been thus far confined to the State of California ; and it will be seen from the table of the production of the New Almaden mine, that it has always furnished a large, though of late a waning, proportion of the grand total for the country. 8. The middle of the nineteenth century was crowded with important events in metallurgy and mining. It was in 1856 that Mr. Bessemer read his paper at the Cheltenham meeting of the British Association for the Advancement of Science, which inaugurated for both continents the age of steel. Within sixty days after that event an experimental Bessemer Converter was in readiness at the fiirnaces of Cooper & Hewitt, at Phillipsburg, New Jersey. But the experiment was not carried far enough to demonstrate the value of the newly-proposed process, and it was left to the late John A. Griswold and his associates to introduce and perfect this wonderful method in the United States. 9. The Commencement of the Eydraulic Mining Industry. — The position of the auriferous slates and quartz veins, on the west flank of the Sierra, with the precipitous mountains behind them, and the broad plain before, has favored exceptionally the formation of deep auriferous gravels in which California far exceeds any other known region. And the same topographical features furnish the two other prime requisites of hydraulic mining, namely, an abundant supply of water and a sufficient grade of descent to pennit the use of flumes and the escape of tailings. These advantages the keen-witted miners of the Pacific coast were quick to make available ; and I think we may set down the invention of hydraulic mining, which occurred, I believe, about 1853, as an epoch in the progress of American mining. It has given us an entirely new and original branch of the art, involving many ingenious hydrodynamic and hydrostatic contrivances ; and it has certainly made possible the exploitation of thousands upon thousands of acres of auriferous gravel which could not have been profitably handled in any other way. The mountain torrents of the Sierra, caught on their way to the Pacific, have been forced to pause and do the work of man. The same agencies that buried the gold among the clay and pebbles of the river-beds are now made to strip the covering from it and lay it bare again. The hydraulic mines produce, at present, not less than $10,000,- 000 or $12,000,000 annually ; and many enterprises of this kind which have been prosecuted through years of expensive preparation, and are now just beginning to touch their harvests of profit, will add henceforward to the product. I may mention as an illustration the extensive operations of the North Bloomfield and its two allied companies in Cali- fornia, which have expended in works $3,500,000, and will have six deep tunnels, aggregating over 20,000 feet, and canals supplying 100,000,000 gallons of water daily. 10. We must turn for a moment to the East again, to note the commencement of iron mining at Lake Superior, about the year 1856. The extraordinarily pure and rich ores of' the upper peninsula of Michigan now find their way to the extent of a million of tons per annum, in fleets of vessels across the lakes to Cleveland, and are thence distributed to the furnaces of Ohio and Pennsylyania. - The similajlyBpure 90 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. Missouri ores have built up ia like manner their own market. The growth of the Lake Superior iron business is shown in the accompanying table. 11. The next great event in the history of American mining was the discovery, in 1859, that the Comstock lode was rich in silver. This opened an era of activity and speculation which has scarcely ceased since that time. Single districts have been subjected to fluctuating experi- ences, passing from the first enthusiasm through all the stages of hope to reaction and despair; but though the fortunes of each have risen and fallen like the changing tide, it has nearly always been high water somewhere. Thus we have had a succession of favorites in the way of silver-mining districts, each one crowding its predecessor out of the public notice. Of these the following list in- cludes the most permanently productive : In Nevada, the Unionville, Reese River, Belmont, White Pine, Eureka, Esmeralda, and Pioche districts : in California, the argen- tiferous district of Inyo County; in Idaho, the Owyhee district ; in Utah, the Cottonwood and Bingham districts ; in Colorado, the silver districts of Clear Creek, Boulder and Summit Counties, to which the latest favorite, the San Juan region, may be added. • It is amazing that under the adverse conditions surrounding the industry of mining in regions "remote, unfriended, solitary" — though not "slow" — so many communities should have succeeded in taking perma- nent root. Too much is expected of this industry when it is required to supply the lack of labor, food, transportation, government, and the organized support which in settled societies all the trades and occupations give to each other. Pioneer work is full of peril and of waste; and in view of the wonderful results achieved by our pioneers in mining, it ill becomes us to sneer at the losses and failures which consti- tute the inevitable cost of such conquests. When the battle has been gloriously won, and the spoils of victory are ours, we do not greatly mourn over the number of bullets that may have been fired in vain. But through all the vicissi- tudes of silver mining in other districts, the Comstock mines have maintained their place, an instance of rapid exploitation, and of aggregated wealth of production un- exampled in history. Here, too, there have been intervals of failing hope ; but a new bonanza has always made its appearance before the resources at hand were entirely ex- hausted ; and we have seen extracted from the ores of this one vein, during the past fifteen years, the round sum of $200,000,000 in gold and silver. Dr. Raymond, in the table herewith given, assumes the product of gold to have been (on the authority of Mr. Hague) about 40 per cent, of the entire value. We have, therefore, from the Comstock mines during the period named, $80,000,000 gold, and $120,000,000 silver. The swift development of these mines, and the active commencement about the same time, of deep quartz mining operations in California led to a remarkable progress in mining machinery, and to the perfection of two distinct- ively American processes. I refer to the California stamp mill and amalgamation process for gold, and the Washoe pan-process for silver. Neither of these is so novel in prin- ciple as the hydraulic process of gold mining already men- tioned ; but both of them have received the peculiar im- press of an ingenuity and mechanical skill, partly innate in our national character, and partly the product of the stern pressure of economic necessities. Into the fruitful field of further metallurgical improvements born of our Western mining industr)'— or adopted by it — such as the Blake rock- breaker, the Stetefeldt roasting furnace, the Bruckner cylin- der, the Plattner chlorination, and many others less widely known, I cannot enter here. Our people have advanced in this line with headlong energy, and accomplished great results— at great expense. Much, undoubtedly, remains to be done ; and it may be hoped that future progress will be equally rapid, but less costly. The introduction, three or four years ago, of the smelting processes of Europe for the treatment of the silver ores of the West, is a striking and encouraging instance of the quickness of our mining com- munities to seize upon the advantages of experience else- where, as soon as they are brought to notice. The igno- rance which has led to many disasters in such enterprises, was not voluntary or obstinate. Give our people light, and they do not keep their eyes shut. I am assured that already the s.Tielting works of the West present many features of interest and suggestiveness even to the study of skilful engineers from abroad. 12. I may be permitted, in closing this imperfect review, to refer to the great improvements in mining machinery, in rock-drilling, in explosives, in the use of gaseous fuel, in the construction and management of blastfurnaces, puddling furnaces, rolling mills, and other branches of the iron man- ufacture, which have crowded upon us during the last ten years. It ia impossible here to give even an enumeration of them which shall do them justice. They have been wor- thily commemorated by others upon other pages. With regard to one of them, the Martin process for the manufac- ture of open-hearth steel, I may speak with some personal satisfaction, since I had the privilege of introducing it into this country, after studying its merits abroad in 1867. I am convinced that it has a great future, as the ally, if not the rival, of the Bessemer process. Returning now to the contemplation of the general field over which we have passed, we may inquire what the gov- ernment of the United States has done, with regard to the mining industry. Other nations have elaborate mining codes and bureaus, of administration. In comparison witn these, the meagerness of our governmental supervision of mining is remarkable ; yet, in view of the progress I have sketched, may it not be possible that our system has been on the whole the best for us ? Certainly a complicated mining code like that of Spain and Mexico, whatever it may have brought to the coffers of the State, seems to have conferred, in centuries of operation, little benefit upon the people. The common law of England is the foundation of our juris- prudence in this, as in so many other respects. According to that law, as laid down in a noted case in the reign of Elizabeth, all gold or silver ores belonged to the crown, whether in private or public lands ; but any ores containing neither gold nor silver belonged to the proprietor of the soil. Apart from the claims of the crown, the property in miner- als, is, according to the common law, prima facie in the owner of the fee of the land, hut the property in minerals, or the right to search for them, may be vested in other per- sons by alienation, prescription, or custom. Since the two latter rights require an origin beyond the time of legal mem- ory, they are practically out of the question in this country. The crown right to the precious metals, as declared in the case referred to, was a survival or remainder of the royalty claimed in ancient times by the sovereign over all minerals. This sweeping claim, born of the despotisms of the Orient and made the subject of much conflict among emperors, feu- dal lords, and municipal authorities during the middle ages, dwindled at last till it covered only gold and silver. But it disappeared entirely from English America, for the simple reason that there was no private land ownership in this coun- try, and the sovereign of' England claimed, by right of dis- covery, soil and metals alike, barring only the Indian title, which it was his exclusive privilege (or that of his author- ized representatives or grantees) to extinguish. After the Revolution, the United States succeeded to the rights of the British crown, and by the treaty of peace and the subse- quent cessionsby the different States of their colonial claims upon the public lands, the federal government became pos- sessed of a vast domain over which, after extinguishing the Indian title, it had complete control. In the territories sub- sequently acquired from France and Spain, the United States assumed the rights and obligations of those sovereigns ; and this circumstance, particularly in the adjustment of Spanish mineral and agricultural grants, has caused some apparent variations from the general policy. But it is sufficiently ac- curate to say that at the present time, throughout the coun- try, the owner of the fee, or the partv who has obtained from him by lease or purchase the mineral risrht, has su- preme control. The mining legislation of the United States, therefore, is simply a part of the administration of the pub- lic lands ; and for this reason it is executed bv the Commis- sioner of the General Land Office. In 1807 an act was passed, relating primarily to the lead-bearing lands of lUi- nois._ They were ordered to be reserved fi-om sale, and leased to miners by the war department. The leases covered tracts at first three miles square (afterward reduced to one mile), and bound the lessee to work the mines with due diligence and return to the United States 6 per cent, of all the ores '""'°°'^ No leases were issued under this law," says Prof. raised. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 91 Whitney, " until 1822, and but a small quantity of lead waa raised, previous to 1826, from which time the production be- gan to increase rapidly. For a few years the rents were paid with tolerable regularity ; but, after 1834, in consequence of the immense number of illegal entries of mineral land at the Wisconsin Land Oflice, the smelters and miners refused to make any further payments, and the government was en- tirely unable to collect them. After much trouble and ex- pense, it was, in 1847 finally concluded that the only way was to sell the mineral land, and do away with all reserves of lead or any other metal, since they had only been a source of embarrassment to the department." Meanwhile, by a forced construction (afterwards declared invalid) of the same act, hundreds of leases were granted to speculators in the Lake Superior copper region, which was, from 1843 to 1846, the scene of wild and baseless excitement. The bubble burst during the latter year ; the issue of permits and leases was suspended as illegal, and the act of 1847, authorizing the sale of the mineral lands, and a geological survey of the district, laid the foundation of a more substantial prosperity. This policy of selling the mineral lands has been that of the government ever since. But it has necessarily been modi- fied in the West by the peculiar circumstances under which that region has been settled. Before lands can be sold they must be surveyed ; and before they can be sold as mineral lands, their mineral-bearing character must be ascertained. Our miners and explorers overran and occupied the Pacific slope in advance of the public surveys. They built cities that were not shown on any map ; they cut timber, turned water-courses, dug canals, tunneled mountains, bought and sold their rights to these improvements under laws estab- lished by themselves, and enforced by public sentiment only. For nearly twenty years the government looked on, without asserting its dominant ownership of the public lands ; and when by the acts of 1866, 1870, and 1872, and other minor enactments, a general system was created, it was necessary to recognize as far as possible the rights which had grown up by general consent, and to seek only to give to them cer- tainty, practical uniformity, and reasonable limitations. It is not my purpose to discuss in detail the mining laws of the United States, or to trace the curiously complicated origins of the local customs on which they are largely based. Suffice it to say that the system recognizes the English common law principle, that the mineral right passes with the fee to the lands; so that, in the words of the commissioner (July 10th, 1873) " all mineral deposits discovered upon land, after United States Patent therefor has issued to a party claiming under the laws regulating the disposal of agricultural lands, pass with the patent, and the Land Office has no further jurisdiction in the premises." But the principle is also re- cognized that the mineral right may be separated from the fee by the owner, whether he be an individual or the United States ; and this principle is curiously applied in the form of patents for mining claims upon lodes, which, following the form of the possessory title, grant to the patentee the right to follow all veins, the top or apex of which lies within the exterior boundaries of his claim, downward to any depth, though they pass under the surface of the land adjoining. As the size and the price per acre of the tracts sold under the agricultural laws are different from those to which the mining laws apply, and as, under the homestead law, a cer- tain" amount of agricultural land may be obtained without any payment, it is evidfint, that no known mineral deposits can be acquired under the agricultural laws; and this reser- vation is enforced both in the preliminary proceedings and in the patents finally issued under those laws. With regard to the mineral lands, however, it is certain that the patent for a claim carries with it both the fee of the land and also a mineral right, though not the same mineral right as is con- templated by the common law ; since it is enlarged on the one hand by the permission to follow mineral deposits be- neath the surface of adjoining land, and limited on the other hand by the operation of the same permission in favor of the adjoining owner. The latter limitation is incorporated in agricultural patents also, and may become operative when- ever they adjoin mining patents. Previous to the applica- tion for a patent, the law permits free exploration and mm- in" upon the public lands to all citizens and those who have declared their intention to become such. The rights of this class of miners, under what is known as the possessory title, are regulated by local laws and customs, subject only to a few simple conditions, which the -United States enforces upon all, and which chiefly concern the maximum size of individual claims, the definite character of their boundaries and landmarks, and a certain quantity of labor which must be bestowed upon them annually, in order to maintain pos- session. I will not pause to state the different features which these conditions present for lode and placer claims. It is sufficient to say that the miner, conforming to them, and thus maintaining his possessory title, may, after a certain expenditure, and upon due application, survey, and adver- tisement, in the absence of any valid opposing claim, per- fect his purchase from the Government, receive his patent, and be thereafter free from the necessity of performing any given annual amount of labor to hold his claim. There are features in the present law concerning the rights of pros- pecting tunnels which seem both obscure and unwise ; and some serious questions remain to be settled as to the precise ineaning of the law in these and other respects ; but these we must pass by. Looking at the legislation on this subject as a whole, we see that it is confined to one department — that of title. The whole system is devised to facilitate the purchase of the mines by citizens. They are freely permitted to work them experimentally, but it is made their interest to buy them. No inspection, no police regulation, no technical control, is exercised by the Government. Turning to the State and Territorial Legislatures, we find that they have, in some cases, provided for inspecting mines, in the interest of the safety of the workmen. Perhaps the best law of this kind is that of Pennsylvania, in which State the peculiar perils of coal mining have forced the legislature to take measures of protection. But we find nowhere such a technical control of mining as is exhibited in many European States, where the Government requires of the miner that he shall not waste wantonly or ignorantly the resources which, once ex- hausted, will never grow again. Our people waste as much as they like, and no one interferes. Admitting that this is an evil, it still remains a matter of doubt how far, under the circumstances of our particular case, the supervision of authority could remedy it. For my own part, though in- clined to restrict as far as possible the functions of govern- ment, I am not disposed to say that for so great an end as the cqnservation of the mineral wealth of the country, it may not properly enforce some measures of economy, with as good right as it may forbid the reckless waste of timber or the slaughter of game out of season. But, in our nation, at least, governmental interference is the last resort, and a poor substitute for other causes, which, in the atmosphere of free- dom and intelligence, ought to be effective. We are, per- haps, in our material career as a nation, like the young man who has " sown his wild oats," and now, by mature reflec- tion and the lessons of experience, is likely to be better re- strained than by the hand of parental authority. Permit me, in drawing my remarks to a close, to suggest two agencies which seem to me to be co-operating already, and to open still wider future prospect, for the steady social and economical improvement of our mining and metallur- gical industry. The first of these is the spread of knowledge on these subjects throughout the country. Under this head we must recognize the great importance of that series of ex- plorations of our great Western domain, which was recom- mended by Mr. Lincoln, with sublime feith in the salvation of his country, in the midst of the civil war, and which has been, by the liberality of the Government, prosecuted under various departments ever since. I need hardly make special mention, in addition, of the reports of the Commissioner of Mining Statistics, which have appeared annually since 1866, and have reflected upon our own community the light of the gathered technical knowledge of the world, while they have in turn exhibited to the world the resources and the progress of America. Such works as these, together with the tech- nical periodicals and the occasional volumes, translated or original, which have come from the American press, have contributed already a great deal to the education of our mining communities. The government has not done too much in this direction ; but it seems to me that it should continue this most necessary and proper work in a more systematic and uniform way. There ought to be no conflict of authorities, no duplication of work, no unnecessary ex- 92 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. penditure of labor and money in the face of a task so great. Next in order, I may rank the influence of the technical schools. The number of these has rapidly increased during the past ten years ; and I venture to say that many of them compare favorably, in theoretical instruction at least, and several of them in the apparatus of instruction, with the famous schools of the old world. The Massachusetts In- stitute of Technology, at Boston ; the School of Mines of Columbia College, at New York; the Sheffield Scientific School of Yale College, at New Haven ; the Stevens Insti- tute of Technology, at Hoboken ; the Pardee Scientific De- partment of Lafayette College, at Easton ; the excellent school at Rutgers College, under the direction of Prof. Cook ; the new Scientific Department of the College of New Jersey ; the School of Mining and Metallurgy of Lehigh University, at Bethlehem ; the School of Mining and Prac- tical Geology of Harvard University, at Cambridge ; the Scientific Department of the University of Pennsylvania, in Philadelphia; the School of Mines of Michigan Univer^ sity, at Ann Arbor ; the Missouri School of Mines and Metal- lurgy, at RoUa ; the Polytechnic Department of Washing- ton University at St. Louis ; and the similar department of the University of California, at Oakland; and perhaps some others which I have omitted to name — this is a list of schools for instruction in the sciences involved in mining and metallurgical practice, of which we need not be ashamed. What our schools undoubtedly need, is a more intimate re- lation with practice. But this theme I need not touch. One more agency of the spread of technical knowledge deserves special mention. I refer to the influence of socie- ties like the Institute of Mining Engineers. The five years' activity of this Institute has impressed upon the professions which it represents a spirit of union, an enthusiasm of progress, a mutual recognition of the claims of theory and practice, which cannot be too highly estimated. Perfect our schools as much as we may, the association of the young engineer with experienced engineers, the contact of his mind with mature minds, their recognition of his merit, their correction of his errors, constitute the necessary supplement to the school-training. The average man, at least, should not be left to wrestle with his professional career alone. He will make better progress and take more pleasure in it, if he calls to his aid the element of social sympathy, and the intellectual reinforcement expressed in the proverb, " many heads are better than one." One further consideration, and I have done. The effect of growing intelligence and knowledge in improving our methods of industry would come short of some great ends if it operated only through the self-interest of the individual. Many reforms are beyond the power of the individual ; some are not even to his interest. Thus the miner under a possessory title on a gold-bearing quartz vein in Colorado may know that with a greater investment of capital he could manage to reduce his losses of gold in extraction ; but the capital may be wanting ; or, he may know that by robbing the mine of its richest ores only, and allowing it to cave, he is probably destroying more valuable resources than he utilizes; but the mine is only temporarily his, and he prefers quick gains to permanent ones. So long as the anthracite lands of Pennsylvania were leased to countless small operators, who paid royalty only on the coal which they sent to market, it was useless to explain to them that they wasted a third of the coal in the ground, and another third in the breaker, or that they ruined thousands of acres of coal-beds, overlying those which they recklessly worked. If there were no natural remedy for this wicked waste of the reserved force upon which the future prosperity and comfort of mankind depend, it would be the highest duty of Government promptly to take into its own hands the direction and management of the mines of coal which society holds in trust for the future ; but already it is easy to detect the operation of a new social law developed within the memory of man, yet the fruit of the preparation of the ages during which society has been slowly built up, and niatured into its present form and conditions. To the philosophic observer, the controlling law which runs through the whole history of man down to the present century, is the law of dispersion, diffusion, distribution, the centrifugal social force, so to speak, which by its irresistible power has tended not merely to scatter mankind over the face of the habitable globe, but through what are termed civilizing and Christianizing agencies to place communities and individuals upon the common plane of equal rights in the domain of nature and before the law. From the time of the confusion of tongues at the Tower of Babel, through the long history of the early Oriental Empires, which re- duced society to the rule of order and then broke up into fragmentary political organizations, retaining, nevertheless, the principles of cohesion acquired by bitter experience; through the Greek and Roman imperial political structures upon which were ingrafted the civilization and the religion which their downfall made the common heritage of the northern barbarians who came for destruction, but were themselves transformed into the apostles of a more liberal and enlightened social organization, this law of dispersion has never ceased to exercise its power and its supremacy. The very inventions of man are only so many proofs of the unceasing operation of this law. In warfare, gunpowder and firearms merely enlarged the area over which it was possible to carry on military operations; the magnetic compass only widened the field of commerce ; the printing- press and the telegraph are merely agencies for the diffusion of thought; the steam engine is but a means whereby it becomes possible to establish local industries in every part of the habitable globe ; and the canal and the railway are essentially distributers of the products and the wealth of the human race. Although there is an impression abroad that this age is one of growing concentration of property, no man can study the history and the facts of the development of society without coming to the conclusion that at no period has there been so general and equal a distribution of rights and property as in the present age. The destruction of the feudal system was, in reality, the establishment of a new and better theory, in regard to the ownership of land, which has borne its legitimate fruits in the subdivision of estates in France, through the convulsions of a revolution ; in the more general distribution of landed property in Germany, and in that steady, remarkable, and successful agitation in England, which is now showing its results in the limitation of entail, the simplification of transfer, the enlargement of the suffrage, and the acquisition of small freeholds, whereby political power is being slowly but surely transferred from the great landholders to the middle classes of the most powerful and compact political organization which the world has ever seen. While, then, there is thus an unmistakable progress in the world towards a juster and more general distribution of the control of the resources of nature and of the fruits of human industry, the present century has, undoubtedly, developed a new and remarkable centralizing tendency, which might be denominated the centripetal industrial force. I speak of the application of the corporate principle to the management of industrial enterprises, producing a concentration of pro- perty and management through the diffusion of ownership. Under the corporate system, the number of owners may be unlimited, but the management is necessarily confined to a fe\v hands. It is the political idea of representation applied to industrial enterprises ; it is the common wealth in its in- dustrial, and not its political sense, which is concentrated for the material wants and progress of the human race. Now, this law of universal ownership, under limited manage- ment, heretofore applied with marked success during-tlie latter half of the present century to great manufacturing establishments in this country, and of late in Europe, and of necessity to railroads everywhere, has at length, by slow but irresistible steps, taken possession of the great mining enterprises of the United States, and to-day has its strongest and most interesting development in the anthracite coal region, which may be said to be monopolized by six great corporations, administered by a very small number of able oflicors representing a vast body of owners who rely upon steady but not excessive dividends for their support. It is the fashion to denounce these corporations as monopolizers, but it is only the thoughtless who do not investigate below the surface, who take this view of what is reallv the most interesting and suggestive application in our dav of a power- ful and irresistible force originating in the very heart of the social fabric. The monopoly is not the monopoly of owner- ship, for everybody is free to buy and sell, and there is no day when a man with money raav not, at its value, procure THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 93 a share in these enterprises. And no one familiar with business will pretend that the profits have been out of pro- portion to the cost and the risk of the undertakings, and no more conclusive answer, to any complaint on the score of monopoly can be made, than that to-day the shares in these corporations, in many cases, are selling below the original money cost. These corporations are, in fact, not the creators, but the outgrowth of a new and beneficent principle, which has begun to assert itself in society, and will continue to grow in power until the end of time. This principle is the practical association of diffused capital, through the agency of corporate organization, with labor, for the promotion of economy, for the improvement of processes, and for the general welfare of manldnd. The capital is derived from innumerable sources, just as the little rills, finally, through streams and rivers, constitute the great ocean. The laborer himself may thu 3 be the capitalist, and the capitalist may thus be the laborer, each taking his share of that portion of the fund which is appropriated to labor and to capital, and often in a double capacity taking a share from both. In its perfect and ultimate development it embodies the Christian idea of "having all things in common," yet "rendering unto Caesar the things that are Caesar's." The rate of profit which may be derived from these great enterprises, subject as they are to the scrutiny, criticism, and judgment of the public, in an age when nothing escapes notice, and all rights and property are virtually subordinated to the popular will, can never be excessive, for two reasons: on the one side the public will inevitably demand lower prices for an article of primary consequence in every household, and these cor- porations, creatures of the public will as they are, could not successfully resist such a demand, based upon excessive or unreasonable profits. On the other hand, whenever the dividends rise above a reasonable rate of compensation, the laborers engaged in the production of coal, from whom these profits cannot be concealed, will ju>tly claim, and rightfully secure, a larger share of the fruits of their labor. The checks upon any unreasonable exercise of the power conferred by the ownership under limited management of the anthracite coal-fields, are in reality so powerful that the public have nothing to fear from this cause, but the corporations have rather reason to dread that they may not have justice at the hands of the public and the working classes. This justice they can only hope to secure by the wisest, best, and most economical management and administration of the property they control, and whatever profits they may hereafter derive and be allowed to divide among the owners, will be rather due to the economies which they may be able to introduce, whereby the article is furnished at the lowest possible rate, than to any fancied monopoly which they may have in the coal itself, or in its transportation to market. Already, by the application of adequate capital, guided by the largest experience and the highest technical skill, the anthracite coal mines, from being worked in a wasteful and extravagant manner, are being rapidly put in the best possi- ble shape for the economical delivery of coal at the surface, and for the preservation of every portion of the store upon which the future value of the property must depend. But besides economy in mining and care in preserving, there must be regularity and stability in the operations of the mine. There can be no real profit where these operations are subject to constant interruption, caused by strikes or other artificial impediments. The loss of interest on the plant at the mines, and in the lines of transportation caused by any serious stoppage to the works, would, of itself, be sufficient to render investments of this kind unprofitable. Hence the out-put must be regulated and proportioned to the wants of the market. But this regulation must be continuous and not spasmodic. To enable this to be done, large stocks of coal must necessarily be kept on hand, in order that any sudden demand may be properly met without any serious increase in price; and in dull times the accumulation and restoration of the stocks will give steady employment to the miners, to whose families any cessation of work is a calamity of the most serious character, and to society an unmitigated evil. To insure continuous operations, the best relations must exist between the corporate owners and the laborers in their employ. It is notorious that throughout the coal regions these relations have been of the most un- satisfactory character, resulting, at often-recurring intervals, in strikes and lock-outs, which have no redeeming feature, but, on the contrary, have raised the price of coal to the consumer, have impaired the dividends of the owners, and have reduced the working men and their families to a con- dition of suffering and demoralization, appalling to every well-wisher of his race. It is fortunate, therefore, that the interests of all classes concur in the prevention of these destructive and demoralizing collisions, and that the owners of the property, for their own self-protection, will be driven to remove the causes which have produced them. It is idle for them to expend their capital for the best machinery, for the highest skill, for the most economical transportation, unless they can, at the same time, insure a continuous production from a contented laboring population. This they have it in their power to do. If the same spirit of sacrifice which has sent out our missionaries into every heathen land, had been shown in the coal regions, and the same efforts had been made to establish and maintain the school-house, the church, and above all the Sunday-school, which have borne such fruits elsewhere in this broad land ; if the hospital for the sick, and the comfortable refuge for the unfortunate had been carefully provided; if reading-rooms and night- schools, and rational places of amusement had, from the outset, been maintained for a growing and restless popula- tion, the coal regions to-day might have been a paradise upon earth instead of a disgrace to civilization. And here it is that this new power of concentrated management can exert itself with a sure and absolute success. The appropri- ation of a few cents per ton on the coal mined to the work of improving the moral and intellectual conditions of the miners and their families will, in a time incredibly short, change the whole face of society in the coal regions. To be effective, however, this consecration of a fixed amount on each ton of coal sent to market must be as absolute and final as that portion of the proceeds which is devoted to pumping the mines, or driving the gangways. It must not come from grace, but from a sense of duty involved in the ownership of property, and dictated by a wise regard for its preservation and permanent value. Even if this percentage were added to the price of the coal the addition would not be grudged by the public ; but in fact no such addition could possibly occur, as there is no surer way of promoting economy in the cost of production than by improving the social condition, the self-respect, and the intelligence of those who are engaged in the work of production, which thus becomes continuous and systematic. Until the great companies thus recognize the duties, the responsibilities, and the opportunities for good, which are offered by the new social development which has rendered their existence a necessity as well as a possibility, they must not complain that they are regarded with distrust, and as enemies, both by the public which consumes their products, and by the working classes who see in them only grasping employers without a conscience. What individual owners could not do, it is easy for these great companies to put in practice ; but the effort must be as earnest and serious as is the business of producing the coal and getting it to market. The very best talent must be secured for the orga- nization and management of the various agencies necessary for the moral, intellectual, and social improvement of the working classes, who must be themselves associated in the administration of the fund created and expended for their benefit. Five cents per ton would produce an annual revenue of over $1,000,000 applicable to this necessary and noble use, and five years of its intelligent and conscientious administration would convert what in some regions has been aptly termed a " hell upon earth " into a terrestrial paradise which would be the pride and glory of the new world. (The various tables to which Mr. Hewitt has drawn the reader's attention will be found on the following page:) 94 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. Table o* Production of licadlng Metala and Minerals In the United States during tUe First Century of Nallonal Independence, Prepared toy R. W. Raymond. Anthracite,* Pig-iron, in tons of 2240 Lead, in tons of 2240 Copper, in tons of 2240 ■ Quicksilver, in flaslcs of 76)^ Gold, in dollars, Silver, in dollars, PetroTm, in barrels of 42 gallons. lbs. avoir. Bis. avoir. Bis. avoir. fiis. avoir. lbs. avoir. U. S. coin. 1819 18,000* 1820 1,965 .. . - 1821 3,273 1822 4,940 9,023 13,641 1824 4,432* • . -1 1823 38,499 1,281 .... 1826 64,815 71,167 1,771 3,927 1827 2,178,239* 1828 91,914 130,000 7,815 1829 133,203 . 142,000 7,824 1830 209,634 166,000 7,163 1831 230,320 191,000 6,646 -1832 448,171 200,000 8,888 1833 692,210 218,000 9,767 1834 456,859 236,000 10,552 1833 678,517 254,000 11,696 1836 8 -'5,729 272,000 14,216 1837 1,039,241 290,000 11,994 1838 873,013 308,000 13,612 1839 9.57,436 326,000 16,639 1810 1,008,220 347,000 15,000 1841 1842 1,116,045 1,286,618 290,000 230,000 18,171 21,586 1843 1,478,926 312,000 21,000 1844 1,899,806 394,000 22,000 2,680* - ■ 1845 2,352,984 486,000 26,.500 100 - i 1846 2,707,-321 766,000 25,000 160 1847 3,327,165 800,000 25,000 300 20,600,006* 1848 3,572,695 800,000 22,500 500 10,000,000 1849 3,724,805 660,0110 21,000 700 40,000,000 1860 3,863,365 663,755 19,5(10 600 25,424* 60,000,000 1851 6,190,690 413,(100 16,600 800 24,000 56,000,000 1852 5,725,148 640,755 14,000 1,000 20,000 60,000,000 1853 1854 6.940,905 0,846,656 723,214 662,216 15,000 14,000 1,850 2,250 19,000 27,000 66,000,000 60,000,000 1866 7,684,542 700,159 14,000 3,000 33,000 66,000,000 1856 1867 1868 7,999,767 7,694,842 7,864,230 788,515 712,640 629, '52 14,000 14,000 14,0il0 4,000 4,800 5,500 66,000,000 56,000,000 50,000,000 28,000 31,000 1,000,000* 1859 9,010,723 75(),.560 14,000 6,300 12,000 50,000,000 100,000 3,": (JO 1860 9,807,118 821,223 14,000 7,200 10,000 46,000,000 150,000 6i0,(i00 1861 9,147,461 663,164 14,000 7,600 3.5,000 43,000,000 2,000,000 2,113,000 1S62 9,026,211 702,912 14,000 9,000 42,900 39,200,000 4,600,000 3,056,606 1863 10,953,077 846,076 14,000 6,474 40,.531 40,000,000 8,500,000 2,611,359 1864 11,631,409 1,013,837 14,000 6,618 47,489 46,100 000 11,000,000 2,116,182 1863 10,783,032 831 768 13,165 6,811 53,000 63,200,000 11,260,000 3,497,712 1866 14,2.33,919 1,200,199 14,312 6,978 46,660 63,600,000 10,000,000 3,697,627 1837 14,345,644 1,305,013 13,662 7,774 37,000 51,700,000 13,550,000 3,347.306 ■ 186^ 16,810,466 1,431,250 14,636 9,467 37,000 48,000,000 12,(100,000 3,715 741 1869 16,376,678 1,711,276 15,663 11,868 33,713 49,500,000 13,(1(10,00(1 4,216.000 1870 17,819.700 1,696,429 15 922 12,650 29,546 50,0 0,000 16,00(1,000 6,659.000 1871 17,370,463 1,707,685 17,854 12,646 31,881 43,.500,000 22,000,1100 6,795,000 1372 2-2,032,-265 2,639,783 23,106 11,948 30.306 36,000,000 25,750,0110 6,539,103 1873 22,828,178 2,660,962 46,661 16,673 28,600 35,000,000 36,.50(1(I0I» 9,879,455 1874 21,667,386 2,401,261 63,219 17,,548 34,254 39,600,000 32,800,000 10,910,303 1875 20,643,509 2,108,664 63,000 15.625 63.706 33,400,000 41,400.000 8,78T,506 Total, 341,521,423 40,000,000 856 000 200,000 840,000 1,332,700,000 261,450,000 76,694,600 * Including the whole previous period from 1776. Production at ^ulclcsllver at Nevr Alntaden for Twenty-tliree Years and Three Months • Class and Quantity op Ore, Total pounds. Flasltsfrom furnaces. Flasks from wash- ings. Flasks, total. Av'ge Eimount per month flasks. Per- centage includ- ing all. Per- oent'ge, Tierra". True per ct, of ore ex'ld tier & wings. ,- « Dates. Grueso, Pounds. Granza, Pounds, Tierras, Pounds. Si J[]|y 18.30 to June 1851. " 1861 '• " 1852. 4,970,717 4,643,290 4,839,620 7,448,000 9,109,300 10,356,200 10,299,900 10,997,170 3,873,085 13,323,200 16,281,400 7,172,660 2,346,000 2,369,300 23,277,600 31,948,400 26,886,300 20,02 ',933 29,406,630 25,458,175 21,097,700 22.034,700 21,410,600 17,330,375 23,464,000 31,106.200 23,875 19,921 18,035 26,325 31,860 28.083 26,002 29,347 10,688 32,402 39,262 17,310 4,820 4,040 42,176 47,078 84,726 23,990 25,677 16,898 14,423 18,513 18,391 11,042 8,867 13,541 2,363 1,129 2,248 700 407 313 116 424 471 61 6 183 ■ '217 107 23,875 19,921 18,035 26,325 31,860 28,083 26,002 29,347 10,588 34,765 40,391 19,564 6,520 4,447 42,489 47,194 35,160 24,461 28,628 10,898 14.423 18,668 18,574 11,042 9,084 13,648 1,989U 1.660 1,6(13 2,193% 2,665 2,M0]4 2,167 2,445 J^ 2,647 2,897 3,366 2,706 2,760 2.223 >< SMO% 3,933 2,929 2,0381^ 2.1364s 1,408 ' 1,2(12 IMVA 1,648 920 757 11.37>.^ 36,74 32.82 28.!iO 27.03 26.76 20.74 19.31 20.41 20.91 19.96 20.22 20.86 18.00 18.66 13.96 11.30 10.00 7.19 6.66 6.07 6.23 6.-44 6.63 4.87 2.96 3.36 3 3 3 3 2 2 2 2 2 2 1.69 1 36.74 32.82 28.60 27.03 26.75 20.74 19.31 20.41 20.91 18.64 18.65 19.46 15.67 17.52 16.64 12.42 11.62 942 10.12 8.48 7.42 9.16 9.67 7.86 4.29 6.92 12 12 *' 1862 " " 1863. 12 " 1853 " " 1854. 12 '■ 1856 " " 1856. " 1856 " " 1857. " 1867 " " lt^58. ' 12 12 12 " 1858 " Oct. 1858. Nov. 1868 " Jan. 1861. Feb.1861 " " 1862. " 1862 " " 1863. " 1863 " Aug. 1863. Sep 1863 " Oct. 1803. Closed by injunction. 12 12 2 Nov. 1863 " Dec. 1803. Jan. 1804 " Deo. 1864. " 1865 " " 1866. " 1866 " " 1866. " 1867 " " 1867. " 1868 " " 1868. " 1869 " " 1869. " 1870 " " 1870. " 1871 " " 1871. 64,800 1,2.59,400 2,288,900 1,,506,000 731,6 2,274,208 160,000 30,000 1,586,600 18,730,300 25,749,0('0 19,039.100 15,689,288 14,666,(iO0 11,942,175 12,531,900 13,661,700 12,777.000 8,492,376 11.294,000 12,236,000 718,000 3,287,900 3,910,500 6,340,200 9,603,145 12,564,722 13,306 000 8,635,800 8,373.000 8,497,600 8,838,000 12,l(i0,000 18,870, ;00 2 12 12 12 12 12 12 12 12 12 12 12 12 " 1872 " " 1872. •' 1873 " " 1873. " 1874 " '■ 1874. " 1875 " " 18/6. 142,009 Totals and averages. 8,436,808 1 179,196,938 114,165,067 406,467,265 687,148 8,734 l696,>'82 21.359^ 11.21 1.99 14.68 279 Product of Enrigueta from 1860 to 1863, 10,571. Total Product of all the mines on the Company's property, 606,463 flasks of 70^!; ttis. each, or 46,393,654^ lbs.— San FYancisco Sckntiflc Prese. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 95 Production of Comstock Lode* I860, 181)1, 1882, 1863, 1861, 1866, 1866, 1867, 1868, 1869, 1870, 1871, 1872, 1873, 1874, 1876, . . $1,000,000 . 2,'275,2o6 . . 6,247,047 . 12,486,238 . . . 15,795,685 . 15,184,877 . 14,167,071 . 13,738,618 8,499,769 . 7,628,607 8,319,698 . . 11,063,328 . 13,669,724 . . 21,534,727 . 22,400,684 . . . 26,023,036 $199,824,364 Or, in round numbers, $200,000,000 ; of which, about $80,0n0- 000 has been gold, and $120,000,000 silver, according to Mr. J. D. Hague. Production of Iron Ore and Pig-Iron at Lake Superior, Dates. 1866 1857 1858 1859 1860 1861 18C2 1863 1864 1866 1866 1867 1868 1869 1870 1871 1872 1873 1874 1876 Ore Tons. 7,000 21,000 31,035 ' 66,679 116,908 45,4.30 116,721 186 257 235,123 196,266 296,072 466,076 607,813 633,238 866,471 813,379 962,055 1,066,875 840,295 829,115 8,281,698 Pig-iron. Tons. 1,629 7,268 6,660 7,970 8,590 9,813 13,832 12,283 18,437 311,011 38,246 39,003 49,298 51,225 63,195 85,245 72,740 76,874 542,209 Total. 7,000 21,000 32,684 72,937 122,663 63,400 124,311 195,070 248,955 208,639 316,409 496,987 646,059 672,241 905,769 864,604 1,015,250 1,102,120 913,035 906,989 8,823,907 Value. $28,000 60,000 249,202 575,529 736,496 419,601 984,977 1,416,935 1,867,215 1,690,430 2,405,960 3,475,820 3,992,413 4,968,436 6,300,170 6,115,895 9,188,055 7,600,000 6,800,000 6,900,000 $65,575,033 — Compiled from apmaerby Hon. Abram S. Sewilt, Transactions of Ameri- can JnUUute of Mining Engineers. PROGRESS IN MINING AND METALLURGI- CAL ART, SCIENCE, AND INDUSTRY FROM 1875 TO 1881. THE period since 1875 has been marked by a degree of activity in mining and metallurgical industry never before equalled in our history, while the prog- ress made in the science and art has been, if pos- sible, still more noticeable. Whether we consider the mining of iron, ore, and coal, or of the precious metals — the advances made in smelting the former and in reducing the latter, the extraordinary increase in the production of Bessemer steel, or the science of Thomas and Gilchrist, which makes the hitherto rejected phosphorus the corner- stone of success— the past five years are alike memorable for the progress they have shown. It may be of interest in this connection to note the following figures, showing the growth of the population of the United States during the last three decades : Year. : Population. loorease. Per cent. 1850. 1860. 1870. 1880. 23,191,876 31,443,321 38,568,371 50,300,000 8,251,445 7,115,050 11,741,629 36.6 22.6 30.5 Coal.— The known area of useful and workable coal in the United States has been greatly extended since 1875 by discoveries in Utah, Colorado, Indian Territory, and New Mexico, good coking coals having recently been found in the two latter, which seem destined to open these territories very rapidly to metallurgical industry. A comparison of the production of anthracite coal during the last five years with that of the preceding five years shows that there was mined of anthracite coal : In 1871—1875 . In 1876—1880 . Gross tons. 154,655,254 111,482,727 . . . 6,827,473, or 6.61 per cent. The great increase in the capacity for its production is shown by the output for 1879 — 27,711,250 gross tons — being 4,730,329 in excess of the largest previous output (that for 1873), or 21 per cent. The total coal production of the United States is thus stated in gross tons : 1870 . . 1875. 1879 . . Anthracite. Bituminous. Total. . 13,985,960 15,231,668 29,217,628 . 20,664,609 . 27,711,250 26,031,720 33,666,709 46,686,235 61,376,969 showing an increase from 1870 to 1879 of 109.7 per cent., of which two-thirds occurred since 1875. The past five years have witnessed many improvements in the mining and handling of coal ; notably in restricting the waste in the preparation of anthracite and in utilizing the culm, both by apparatus for burning it in its natural condition, such as that of Mr. John E. Wootten, applied to the engines of the Reading Railroad, and by forming it into bricks, in com- bination with clay or tar, as is done by the Delaware and Hudson Canal Company, and used on their locomotives. Machinery for washing bituminous coal for coking has been greatly improved, and a practicable arrangement has been devised for burning pulverized fuel which promises well. It is in the preparation by comminution, or by conversion to gas, that further economy in the use of fuel is to be looked for. Pig Iron. — The production of pig iron in the United States for the periods named aggregated as foUowes : 1871—1875, . . . 1876—1880, . Increase, . . Gross tons. . 11,233,424 . . ,12,813,814 1,580,390, or about 14.07 per cent. The production for 1880 was reported by Mr. James M. Swank as 3,835,191 gross tons, an amount 50 per cent, greater than the production of 1872 and 1873, and over double that of 1876. We are accustomed to regard the five years 1874r-78 as years of great depression in the iron indus- try, and yet the product of pig iron for those years was 10,- 652,836 tons, while it was for the ante-panic years, 1869-73, 10,192,933 tons, showing an increase of 459,903 tons, or 4.51 per cent, in five panic years over the production of the best five consecutive years ever known to the iron trade of this country. The use of regenerative stoves with blast furnaces of large hearth area opened a new era in the history of blast furnaces, evidenced by the product of the furnaces of the Edgar Thomson Steel Company, Limited, their " B " fur- nace of 20 feet bosh by eighty feet high having averaged upward of 140 tons per day during a blast of seven months, and having made 208 tons in 24 hours. That large blowing, combined with high heating capacity, in furnaces having large hearths, will result in still greater production, with less consumption of fuel per ton, seems assured. Iron Ore.— The production of iron ore received an im- petus in the increased production of pig iron, shown by the increased production of the Lake Superior region, as follows. The output for the five year periods before referred to shows as follows : For 1871-76, . For 1876-80, . Increase, . Gross tons. . . 4,779,114 . . 6,451.092 . . . 1,673,978, or 34 per cent. The production for 1880 reached 1,975,602 gross tons an amount exceeding by 800,000 tons the largest year's output 96 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. prior to 1876, and by 560,000 tons the greatest production of any previous year — tliat of 1879. Wrought Iron. — There was a material advance in the production of the various forms of wrought iron, and some decided improvements in the economy of its production. The ordinary consumption of fuel per ton of iron puddled was 3000 to 3200 pounds, but the Swindell regenerative fur- nace puddle a ton of iron with 1250 pounds of slack coal. Steel. — In the production of Bessemer steel there was an increase as unexpected as it was extraordinary, whether considered in its commercial aspects or as the result of the skilful handling of machinery originally designed for a much smaller output, for it must be considered that up to the end of 1880 there was no increase in number and very little in the size of converters since. 1876. The output of Bessemer steel ingots was for five years : Net tons. 1S71-75, . 1876-80, . Increase, . 907,000 3,950,964 . . 3,043,894, or 333 per cent. The product of 1879 was 928,972 net tons, or 21,000 tons in excess of the five years 1871-75, while that for 1880 was 1,203,173 net tons, an amount greater than the output of any two years prior to 1878. The output of ingots of some of the leading steel works during 1880 was reported as follows : Edgar Thomson, Cambria, . Joliet, .... Lackawanna, . Nortli Chicago, . Gross tons. 123,303 . 122,143 116.760 105,3o4 . 100,178 Of steel rails there was a more than proportionate in- crease, due to greater economy in the production, whereby a slightly larger percentage of rails was obtained from the ingots than was previously done. The product for five years was : Net tons. 1871-76, . 1876-80, . Increase, . . 697,142 . 3,046,684 . . . 2,349,442, or 335 per cent. The steel rails produced in 1879 were 683,964 tons, nearly equal to the five years 1871-76, while for 1880 there were made 967,592 tons, or 40 per cent, in excess of that five-year product. Improvement in the quality of Bessemer steel is to be looked for in the direction of allowing time for the steel to settle, the ingredients to become more thoroughly distributed, the fine particles of slag to rise to the surface, and the free oxygen to escape before casting into ingots. The question of the removal of the occluded gases from steel is also attracting attention abroad, and appears likely to afiect very materially the quality of the ingot metal of the future. One of Edison's experiments with platinum wire, effecting what he calls the removal of the contained air, but which was evidently the removal of the occluded gases, raised the melting-point of the wire to double its original temperature, and increased its light-giving capacity eight times. It is noted that the Wheeler process of rolling steel scrap in an iron casing is being utilized at Chester, Pa., in the manufacture of ship plates. Oold and Silver. — The product of the precious metals for the periods named was as follows < 1871-75, 1870-80, Decrease, 1871-75, 1876-80, $197,662,244 190,690,603 $971,641 $133,697,510 206,210,848 Increase, $72,603,338 The product of the two precious metals showing an in- crease of $71,631,697. The great increase in the output of silver was largely due to the great carbonate deposits of Colorado, the product of the Leadville mines in 1879 being $10,189,521, and in 1880, $15,095,153. Petroleum. — The mining product showing the greatest increase in output is petroleum, which was : In 1871-75, . In 1870-811, . Increase, . 41,911,367 83,04^,121 . . . • 41,130,754, or nearly 100 per cent. The production in 1880 reached the enormous total of 26,032,421 barrels, compared with which the greate.st year's output prior to 1876 was 10,910,303 barrels in 1874. Machinery. — There have been great improvements in mining and metallurgical machinery during the last five years, prominent among which, may be mentioned the Por- ter-Allen high-speed engine for rolling-mills ; the Leavitt compound engine for pumping and hoisting, the Bulkley condenser, which is coming into general use for rolling-mill and blast-furnace engines ; and the Kloman eye-bar univer- sal mill, for producing weldless eye-bars of iron and steel, the only process so far used adapted to eye-bars of Bessemer steel. Railroads. — Much of the increased output of iron ore, pig iron, and steel rails was due to the demand created by the construction of railroads, of which there were 19,397 miles constructed since 1875, and of which 7150 miles were built in 1880, an amount nearly equalling the mileage of 1872, which was 7340 miles. —Compiled from Annual Address, W. P. Shinn, AmtrUan Institute Mining Statement of Annual Production of Ijeadlng Mining and Metiainrglcal Prodncts, During the Ten Years 1871—80. Anthracite coal. Gross tons. Pig Iron. Gross Tons. Bessemer Steel Ingots. Net tons. Steel rails. Net tons. Sold. SilTOr. Petroleum Barrels. Lake Superior region. Years. Ore. Tons. Tons. 1871 1872 1873 1874 1876 17,379,365 22,084,083 22,880,921 21,61)7,386 20,643,609 1.707,685 2,539,783 2,660,962 2,401,261 2,023,733 48,850 120,108 170,652 191 933 376,617 38,260 94,070 129,015 144,944 290,863 $35,898,000 39,459,459 40,456,593 40,103,045 41,745,147 $20,286,000 20,627,600 28,262,100 30,498,000 34,"4,%910 6,795,000 6,539,103 9,879,456 10,910,303 8,787,506 813,379 952,0.55 1,167,379 935,488 910,843 61.225 61,195 70,507 86,494 81,753 5 years. 104.655,254 11,233,424 907,060 697,142 $197,662,244 6133,607,510 41,011,367 4,779,141 361,174 1876 1877 1878 1879 1880 19,000 000 21,323,000 18,600,000 27,711,260 24,848,477 1,868,961 2.066,694 2,301,215 2,741,853 3,836,191 526,996 660,587 732,226 928,972 1,203,173 412,461 432,169 660,398 683,964 967,592 $14,328,501 46,300,000 41,000,000 32,539,020 33,522,182 $41,506,672 40,075,000 40,000,000 38,023,812 40,006,304 8,968,906 13,136,611 16,163,462 19,741,661 26,032,421 977,233 960,982 1,123,093 1,414,182 1,U76,602 61,911 29,685 17,404 39,583 48,502 6 years. 111,482,727 12,813,814 8,950,954 3,046,684 $196,690,003 $206,210,848 83,042,121 6,451,092 . 197,085 —Clompiledfrom Annual Address, W. P. Shinu, American Institute Mining Eugmeers, WESTERN SCENERY-GREEN RIVER STATION-COLORADO RIVER. -FROM J W. POWELL'S REPORT. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 97 THE ORIGIN AND HISTORY OF COAL. THE rocks of the earth, known as the " Coal Measures," consist of a series of beds of sandstones, shales, limestones, fireclays, iron-ores, and coals, in mani- fold alternations. The beds of coal are now univer- sally held by men of science to have been formed from the decomposition of vegetable matter — .the leaves and stems of ancient plants and trees which grew, and died, and became decomposed and mineralized on the spot where the coal is now found ; and the associated beds of rocky strata to have been derived from the sediments of the water which flowed over the carbonaceous accumulations during the subsidence of the land. Several other theories have been advanced, accounting for the origin of coal — as that it is of animal origin, or that it was formed from petroleum. Bischoff, and other eminent geologists, held that the carbonaceous matter was an accumulation of vegetable detritus, which had been drifted by rivers into bays and estuaries, as the va5t rafts of dead floating trees now accumulate in the Lower Mississippi ; but careful examinations of the original coal plants found in the floor of the coal, first brought to notice by Sir William Logan, in 1840, during a survey of the South Wales coal field, have confirmed the theory that the vegetation grew on the spot where the coal is )iow buried. During the coal formation period, in the history of the earth, vast marshes of swampy plains skirted the ocean, or perhaps formed low islands near the shore. Upon these marshes there grew a profuse and luxuriant vegetation, con- sisting of numerous beautiful and various plants, differing in size from small mosses to stately trees, which, year after year, dropped their leaves and fruit, and in time, died them- selves. New forests arose and died in succession, growth and decay going on through many slowly-moving centuries, until a mingled mass of vegetable tissue was accumulated, like the pulpy mass of a peat bog of the present day. At length, through the agency of subterranean movements, the area of the coal marsh became depressed with much unifor- mity, the land slowly and gradually sank, and the waters of the ocean flowed in over the carbonaceous accumulation, bringing along mud and sand and other sedimentary materials, which settled at the bottom. As the sinking pro- cess continued, the ocean currents brought in more detritu?, covering the older depositions, which, becoming compressed by the accumulating weight, solidified, forming into sand- stones, shales, etc., according to the nature of the materials. The buried peat bog also became greatly compressed by the accumulated weight of this detritus, the original plants and peaty tissue matting together and becoming hard and com- pact, while a portion of the gases escaped in the forms_ of carbureted hydrogen and carbonic acid by slow distillation and putrefactive fermentation. The subsidence period was in time arrested, and was fol- lowed by a long period of rest, when the waters of the ocean becoming filled up, there was formed a new subaereal sur- face. A growth of vegetation covered this new plain, as in the former case. Generations of forests again succeeded each other, and again the vast marsh accumulated matter capable of forming a second seam of coal. Then followed another downward movement of the land, and another burial of the coal vegetation by the detritus of the water. The set of processes thus described was repeated in the formation of^every seam of coal and its associated beds of strata; the periods of elevation were longer or shorter according to the amount of vegetable matter which accumu- lated on the marsh; and the periods of subsidence were lono-er or shorter according to the amount of strata which accumulated between the different beds of coal. Many geological writers maintain that during the Carboniferous era, the atmosphere of the earth was intensely hot, and was also saturated with vapor, and charged with undue propor- tions of carbonic acid gas which had been liberated trom the interior of the earth through the agency ot volcanic eruptions; these conditions being claimed as essential to the production of the coal vegetation. But as coal is found in newer formations than the Carboniferous era—the coal of China belonging to the Triassic, and that of the Pacifec Coast to the Cretaceous formations— and as coal is doubtless forming now in many places of.the earth, it may .be fairly 7 assumed that the climate of the Carboniferous age was not unlike the climate of the present age, although, perhaps, more mild and equable ; only the plants and animals were different. Instead of one peculiar coal-bearing age, all ages perhaps, as well deserve to be called carboniferous. Sir Charles Lyell, in his " Principles of Geology," writing of the formations of the Delta of the Mississippi, mentions instances of whole forests of strata sunk as they grew, and ^ covered, to a depth of several hundred feet, with an accumu- ' lation of mud and sand and vegetable soil in alternating beds, in the same manner as the coal marshes were covered up in the primeval ages. The sunken country of New Madrid a water space of nearly 80 miles long and 30 miles wide, caused by the earthquake of 1811-12, was filled, as late as the year 1846, with dead trees, some standing erect in the water, as they grew, others fallen down, and lying in dense masses over the bottom, and along the shore. He mentions another case of a tract of land, at the mouth of the river Indus, larger than the Lake of Geneva, which was converted into an inland sea in the year 1819, by an earth- quake shock, while an adjoining tract, 50 miles in length, and nearly 16 miles wide, was raised by the same shock, ten feet above the level of the alluvial plain. The coal strata are full of the remains of animal and vegetable life. Nearly a thousand different coal plants have been described by the geologists. Beneath every seam of coal there is generally a stratum of fire-clay — the original land surface upon which the coal plants grew, in which rootlets, stumps of trees, stems and dark filaments are found. Sometimes the remains of trees, embedded as they grew in the under- clay, and standing up through the coal and the roof above, and then abruptly stopping — the upper part having rotted and fallen off— are met with. In the year 1844, at the Park- field colliery, near Wolverhampton, in England, the work- men mined into a quarter of an acre of coal, which was filled with stumps of trees, standing as they grew; the trunks, fiattened by the pressure of the superincumbent strata, were converted into coal, but were identified. The trees were found scattered in all directions, having evidently been snapped off' by a storm or an inflow of the water, during the sinking of the land, or by an earthquake shock. The roof above the coal is often charged with the remains of ferns, flattened trunks of trees, pieces of bark, branches and leaves, crossing each other in promiscuous profusion. Of the numerous forms of vegetable matter, from which coal is derived, a great bulk of the coal appears to have been formed from trees allied to the club mosses, ferns and rushes of the present day — more particularly in the lower beds or coal. The casts of the sigillarise, known by their fluted and symmetrically scarred bark, often lie full length, as they fell in the mud, immediately above the coal, and can be traced for fifty and sixty feet along the working places of the miners. The gigantic lepidodendrons, allied to our modern club mos- ses, which in the coal era attained a height of forty feet, lie stretched full length, alongside of the sigillarise. Calamites (the representatives of our rushes) with jointed and striated stems, meet the eye in nearly every mine, and often measure thirty feet in length. The fossil remains of fishes, marine shells and amphibian reptiles are also found interspersed in the roof shales. One hundred and fifty species of fishes, many of them of immense size as compared with the fishes of the present day, have been discovered in the coal and its •associated strata, and the teeth, scales and spines of fishes are frequently found imbedded irt the same manner. The tracks of the reptiles, formed as they walked along the soft and muddy sediment of the ancient shore, ripple marks, and the impression of rain drops, have also been seen in the roof shales of some mines. Some of the coal fields of the world contain strata of im- mense thickness. At Lundly, in Wales, the coal measures are known to be fully ten thousand feet thick, and to contain forty-two different seams of coal, the total thickness of which measures one hundred and fifty feet. The coal strata of Nova Scotia, at the Joggins, are fifteen thousand feet thick, and include seventy-six different seams of coal, one of which measures thirty-seven feet in thickness, and another twenty- two feet. The coal field of Saarbrucken, on the left bank of the Rhine, in Prussia, has the enormous depth of twenty thousand feet. It has been estimated by eminent geologists that it would require a period of 150,000 years to accumulate 98 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. matber to form sixty feet of thickness of coal, an amount far exceeded in many coal fields of the world. In this cal- culation, no account is taken of the different periods of sub- sidence of the land, when the associated strata were deposited. As the sinking process was slow and gradual, and as fifty feet of strata intervene, on an average, between the different seams of coal, it may be reasonably assumed that an equal period of time was required in building up these strata as occurred in the formation of the carbonaceous matter which formed the coal. Beroldingen first suggested the theoiy that the coal beds of the present age, were the peat bogs of the primeval ages, converted from peat into brown coal, and then into true coal ; and this view is now accepted by every intelligent geologist. The progressive steps from peat to anthracite, are thus described by Dr. Newberry, the emi- nent geologist of Ohio : " Coal is now considered, by all good chemists and geologists, as of organic origin, and it may be easily demonstrated that it has been derived from the decomposition of vegetable tissue. As we find it in the earth, it forms one of a series of carbonaceous minerals which represent the different stages in a progressive change from vegetable tissue as found in the living plant. In peat and lignite, we witness the first step in the formation of coal. Peat is bituminized vegetation, generally mosses and other herbaceous plants, which, under favor- able circumstances, accumulate in marshes, hence called peat bogs. Lignite is the product of a similar change effected in woody tissue ; and because it retains in a greater or less degree the form and struc- ture of wood, it has received the name it bears. Peat is the product of the present period, and lignites are found in deposits of recent geological age. In the older formations, these carbonaceous ac- cumulations, still further changed, are bituminous coal. " The changes which vegetable tissue has suffered in passing through these various stages, are not only physical but chemical. They nave been carefully studied by several eminent chemists, and have been so fully explained that they may be comprehended by any intelligent person. The rationale of this process may be seen at a glance, by reference to the following formula, taken from Bischoff's Chemical Geology : BITUJIIN's WOOD. LOSS PEAT. LOSS. LIGNITE. LOBS. COAL. Carbon . . . 40.1 21.50 27.6 18.6.5 30.45 12..35 18.10 Hydrogen 6.3 3 80 2 8 3.25 3.05 1.85 1.20 Oxygen . . . 44.6 29.10 16.5 24.40 20.20 18.13 2.07 " This is the condition in which we find most of the beds of peat and lignite that accumulated in the Carboniferous age, millions of years ago, and whichj deeply buried, have been subjected to slow and general distillation, resulting in the different varieties of bituminous coal. Where exposed to peculiar influences, as to heat from volcanic eruptions, or from the elevation of mountain chains where all the strata are metamorphosed, the volatile constituents of bituminous coal are partially or perfectly driven off, giving us, first, semi-bituminous coal, then anthracite, and finally graphite. The process by which graphite and anthracite ai-e farmed from ordinary bituminous coal, is indicated in the succeeding formula : BITUMINOUS COAL. LOSS. ANTHRACITE. LOSS. GRAPHITE. Carbon . , Hydrogen Oxygen . . 18.10 1.20 2.07 3.57 0.U3 1.32 14.55 0.27 0.65 1.42 014 0.65 I'i.ll 0.30 0.00 From the above tables it will be seen.that the change from wood tissue to peat or lignite, and from these to bituminous, thence to anthracite coal and plumbago, consists in the evolution of a portion of the carbon, hydrogen and oxygen, leaving a constantly increasing percentage of carbon behind, until, ultimately, the resulting mineral consists of a portion of the original carbon of the plant, with all its earthy matter. That portion of the original substance which is lost in the progressive change escapes in the form of some hydro-carbon, as water, carbureted hydrogen, carbonic acid, petroleum, etc. The escape of these volatile compounds we see in the gases bubbling up in marshes where vegetable matter is under- going decomposition, in the gases generated in our coal mines, and in the oil springs, which always flow from strata charged with bituminous matter. By the application of heat, and with proper management, we can manufacture any of these mineral fuels from vegetable fibre, at will. This has been done repeatedly, and although we cannot accurately reproduce the conditions under which these changes are ef- fected in nature's laboratory, we can so closely imitate them as to demonstrate their character. It would require from eight to ten feet of thickness of the loosely matted peaty tissue of the coal marshes to form one foot of coal ; and as Some coal seams are thirty and forty feet thick, in several of the coal fields of the world, an enor- mous bulk of vegetable matter mmt have accumulated fnr the production of these thick seams. The thickest peat bogs of the present day seldom exceed thirty or forty leet. The coal marshes of the primeval world, on being opened up to serve the purposes of man, present several-distinct varieties of coal. The coals of the Carboniferous age, called true coals, in contradistinction to the lignites or brown coals of more recent geological ages, are classed under the general heads of bituminous and anthracite. The bituminous coals are divided into different species, and show great diversity, both in their physical and chemical properties, and they are known by different names, according to their qualities and chief propertie.3, such as "dry-burning coals," "caking coals," "gas coals/' "cannel coals," etc. Bituminous coals are of all shades of color, from deep black to greyish black, and they exhibit in their structure some well marked pecu- liarities. The diy-burning variety usually possesses, a laminated structure, the Iracture or cleavage of the coal being horizon- tal, and the seam is often intersected with partings or cut- ters, which cross each other every foot or two, like latitude and longitude lines, giving the masses, as they come from the miner's pick, the appearance of squares, or blocks, hence they are called block coals. Such coals do not cake nor swell when burning, and for this reason they are es- pecially adapted for smelting iron in a raw state. In the blast furnace they retain their shape until they fall to ashes. They are generally very hard and compact, and bear trans- portation better than any caking species of bituminous coals. Caking coals melt and fuse together in the act of combus- tion. This property forbids their use in the furnace, as they form a hollow fire, and they require to be converted into coke before being applied to the reduction of ores. The slack or small coal is of nearly equal value, when in a pure state, with the round coal, the abundance of bituminous matter in the coal causing the whole to agglutinate in mass- es when exposed to a moderate heat. Cannel coal is nearly always formed in thin seams, and the deposits generally oc- cupy but limited areas. It contains a large percentage of hydrogen, and burns with a bright, clear flame, making a very pleasant parlor fire. Cannel is the richest gas coal ob- tainable, the gas possessing brighter illuminating powers than that of the more common varieties. This coal has a dull lustre and is in color between a velvet and greyish- black ; it breaks with a flat, conchoidal fracture, and it is very compact and fine in the grain. It will scarcely soil the fingers in handling it, and it makes very little dust in the mine. The remains of shells, fishes and amphibious animals are very often found imbedded in the beds of can- nel coal, whence it is thought that the carbonaceous matter from which it derived was deposited in lagoons of open water in the condition of muck or mud, similar to the muck swamps of the present day. The specific gravity of bitu- minous coals is from 1.25 to 1:4. They generally contain from 55 to 80 per cent, of carbon, and from 8 to 22 per cent, of oxygen, hydrogen and nitrogen, with variable propor- tions of earthy matter. Anthracite is a black, heavy coal, having a conchoidal fracture, and containing from 80 to 95 per cent, of carbon and a small per cent, of hydrogen, oxygen and nitrogen! Ihis coal kindles with difficulty, but when once fairly igni- ted. It burns with an intense heat, emitting neither smoke nor flame. It occupies much less extensive areas than the bituminous species. Anthracite coal was originally bituminous, the change having been affected through the agency of heat, which drove off the bituminous matter, as the gases are now driven off from bituminous coal in the production of com- mon street gas. The anthracite coal fields of Pennsylvania form partof the great Allegheny coal field. During the upheaval of the Allegheny Mountains, which occurred after the c ose of the Carboniferous age, the heat which attended the elevation of the mountains, acted on the coal and drove out the gaseous matters. Anthracite exists in South Wales and in France, Russia, and Saxony; and everywhere it is found occupying abrupt flexures of the strata, the result of gradual and irresistible forces. So abrupt are these flexures in the anthracite region of Pennsylvania, that the coal strata nn!utn» °°,'=".Py'"S '" "any places, nearly perpendicular positions, and in some cases reverse dips. The snecific gravity Of anthracite is from 1.3 to 1.75. Semi-bituminous THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 99 coal is, as its name implies, intermediate between bitum- inous and anthracite . It contains little bituminous matter and a- large percentage of carbon, and is highly prized for the generation of steam and the manufacture of iron. This coal burns freely, producing an intense heat when exposed to the action of a strong blast. Like anthracite, semi- bituminous coal has been subjected to the action of beat, though in a leas degree, during the folding of the strata. The coal is less debitumenized, because, during the meta- morphic processs, the gaseous materials had not the same opportunity to escape ; the strata, though folded, are nowhere fractured. The lignites, or brown coals, belong to the geo- logical formations of more recent age than the true coals of the Carboniferous period. They exhibit in their structure, plain and unmistakable traces of their vegetable origin. These coals burn with a clear flame, but give off a highly bituminous smell. They decompose very rapidly when exposed to the action of the atmosphere, and for this reason are unfitted for distant transportation. The coals of China and of our Pacific Coast belong to this class ; and they exist over large areas on the Continent of Europe. Some of the better sorts approach the true coals in character. The coal fields of the world generally exist in the shape of elliptical basins. Some of the basins are nearly round; but in most cases they possess much greater length than breadth. The greatest thickness of strata, and, consequently, the greatest number of beds of a field, exist at the center or trough. From this point the strata are inclined, or pitch upward in all directions, the upper coals cropping out ^rst and the lower ones stretching across the whole surface of the coal marsh. The original shape of many fields has been greatly changed by faults in the form of "slip dykes" and "dislocations" of the strata. These faults traverse the coal field for miles, and are the result of violent mechanical convul- sions, by which the strata in one part of the field are thrown up on one side of the dislocation. The change of level caused by such faults ranges from a few inches, to hundreds of feet ; and it frequently happens in the operation of sink- ing for coal, that the seam is reached by a shaft at the depth of three hundred feet, while on the opposite side of the fault, the same seam is found a thousand or twelve hundred feet deep. These dislocations are very common in the British coal fields. They sometimes divide the basin into sub- ordinate basins, presenting great barriers to the successful prosecution of underground operations. But they come as friends as well as enemies, for they are true flood-gates, damming back the waters of the mine. Their line of direction of these slip-dikes is not always the same, and they sometimes cross each other. The change of level caused by a slip-dike in one of the Scottish coal fields, is stated by Mr. Robert Bald, the eminent coal viewer of Scotland, to be no less than 1,230 feet, and the coal field is divided by this and another slip, on the north side of the basin, into three subordinate basins. The great dislocation throws out the whole of the coal strata for nearly a mile, when, by reason of the natural inclination of the rocks, the missing materials again appear as the outcrop of one of the subordinate fields. Another dike in Lanarkshire, causes a change of level of the coal rocks, of the enormous distance of 2,700 feet. The change of level caused by slip-dikes is upward or downward, according to the side from which they are ap- proached by the miner ; and when forming an acute angle with the floor of the mine, the coal strata are thrown down ; when the angle is obtuse, they are thrown up. Sometimes, however, the face of the dike is perfectly vertical, formmg a right angle with the pavement ; in which case it is very dif- ficult to undermine whether it is an upthrow or downthrow. These dikes are not always upthrows or downthrows, for the strata are sometimes only pierced by them without change of level. In these examples they are known as trap-dikes, the intrusive matter being the lava which flowed in during the rents of the strata. In approaching such faults the coal is frequently found burnt like coke. Besides dikes of the character noticed above, there are a number of other faults encountered in mining, which are known by various names, such as "troubles," "horsebacks," "nips," "clay-veins, "wants," etc. Troubles are generally meant to denote ir- regularities in the coal, as where a seam has an irregular floor, and is subject to sudden thinning, or where part of the coal is so soft as to resemble the gob waste of the mine. Horseback U an Americanism, and in this country, is now very generally applied to every trouble of the mine, though originally meant to designate a fault in the floor of the coal, which resembles the shape of a horse's back. Sometimes irregular layers of sandstone or shale appear in the body of the coal ; and it also frequently happens that a foreign mass of sandstone will be found usurping the place of the coal. This latter fault is very common in some mines, and is, doubtless, due to currents of water, in rapid motion, having carried sand across the old coal bog, which, by constant friction, has removed the coal, and finally settled down in its place. In the coal fields of the United States, although there are an abundance of faults of a local character, there is seldom met any slip dike ; and such dislocations of the strata, wherever encountered, seldom exceed a few feet of upthrow or downthrow ; though in the coal strata of North Carolina, which are subject to many troubles, some of the dikes are known to. cause twenty or thirty feet of change of level. The various beds of coal in the coal fields of the world generally bear a parallel relation to each other. This fact, though general, is by no means universal, for there are some well known cases where the beds diverge or approxi- mate each other, according to the line of direction in which they are followed ; and sometimes, also, the seams split up into two or more parts, by the introduction of shale bands, which, though thin at first, continue to increase in thickness until two or more independent seams are formed. The great thick coal of Billston, Dudley and Wolverhampton, in Eng- land, which forms a mass of solid coal, from twenty-four to thirty-six feet in thickness, splits up in one part of the coal field into nine different beds; and the mammoth vein of the anthracite region, also splits up into several seams. Some well marked cases of the splitting of the seams also occur in the coal strata of Ohio. " Coal," says Dr. Newberry, " is entitled to be considered as the mainspring of our civilization. By the power de- veloped in its combustion, all the wheels of industry are kept in motion, commerce is carried with rapidity and cer- tainty over all portions of the earth's surface, the useful metals are brought from the deep caves in which they have hidden themselves, and are purified and wrought to serve the purposes of man. By coal, night is, in one sense, converted into day, winter into summer, and the life of man, measured by its fruita, greatly prolonged. Wealth with all its comforts, the luxuries and triumphs it brings, is its gift. Though black, sooty, and often repulsive in its aspects it is the embodiment of a power more potent than that attributed to the genii in oriental tales. Its possession is, therefore, the highest material boon that can be craved by a com- munity or nation. Coal is also not without its poetry. It has been formed under the stimulus of the sunshine of long past ages, and the light and power it holds are nothing else than such sunshine stored in the black casket, to wait the coming, and servo the purposes, of man. In the process of formation, it composed the tissues of those strange trees that lifted up their scaled trunks, and waved their feathery foliage over the marshy shores of the carboniferous conti- nent, where not only no man was, but gigantic salamanders and mail-clad fishes were the monarchs of the animated world.'' In the early ages of the world, the products of the forest were sufficient to supply the wants of mankind, but as the race increased in numbers, and its wants began to mul- tiply, attention was turned to the mineral fuels of the earth. The peculiar appearance of a coal bed, exposed in the flanks of a hill, or laid bare by the action of water along the banks of a stream, would doubtless attract the attention of the earliest inhabitants of a country, and accident or experi- ment would reveal its combustible properties. We have no knowledge of the people who first discovered the existence and uses of coal, but the history of coal mining can be traced back to a period long before the commencement of the Christran era. The first time coal is expressly mentioned in the works of ancient authors, occurs in the writings of Theophrastus, the pupil of Aristotle, who lived nearly three hundred years be- fore Christ. In his book on Stones, chapter XXVIII, this author remarks : " Those substances that are called coals, and are broken for use, are earthy ; they kindle, however, and burn like wood coals. These are found in Lyguria, where there ij amber, and in Elis, on the way to Olympus, 100 THE MINES, MINERS AND MINING INTERESTS OF THE- UNITED STATES. over the mountains. They are used by smiths." Pliny also speaks of a black substance, as available for medicinal and ornamental purposes. Frequent allusions are made to coals of fire in the Scriptures ; but they doubtless have reference to charcoal. The Chinese are known to have used coal from the very earliest times, and to have extracted the inflamma- able gases from this mineral for illuminating purposes. The coal fields of Great Britain appear to have been the first opened in Europe. The primeval Britons, those savage and roving clans, who inhabited the island at the time of its in- vasion by Julius Csesar, a people possessed of perceptive faculties of a high order, were doubtless acquainted with the existence and properties of coal. They could only mine it along its outcrop, where it exposed itself in full view to the naked eye, and their tools would be of the very rudest kind, composed partly of wood and stone, since they had no knowledge of the use of iron. In a coal mine in Mon- mouthshire, in Wales, there was found, some years ago, a flint axe sticking in the coal ; and near Stanley, in Derby- shire, the miners in holing through into some old workings, found tools formed out of solid oak, without any iron what- ever. The Romans, while in Britain, were well acquainted with the existence of the coal mines, and carried on mining operations to a considerable extent. Cinder beds yet exist among the ruins of several Roman stations, in which Roman coins, and Roman inscriptions have been found. The Ard- ley main coal of Lancashire, which crops out along the banks of the river Douglas; has been mined along that stream, for over a hundred yards in one direction, in the form of polygonal rooms, altogether different from any Brit- ish manner of mining, the symmetry and regularity of plan resembling the tesselated pavements of Roman villas. Coal is mentioned for the first time in English history, in the year 1180, when the Bishop of Durham granted some lands to a collier, to mine coal for the use of a blacksmith, at Counden, in the county of Durham. During the reign of Henry III, that monarch, in the year 1239, granted a char- ter to the people of New-Castle-on-Tyne, conferring upon them the privilege of mining coal ; and in 1240 coal appears to have been shipped to London. In 1280, the coal trade of New Castle had consumed considerable importance. By the beginning of the next century, the use of coal had become so general in London that the citizens became alarmed for their health, believing the coal smoke induced disease of the lungs and chest, and they petitioned Parliament to prohibit the burning of coal as an intolerable nuisance. Accord- ingly, the Lords and Commons, in Parliament assembled, complained to the King (Edward I) in behalf of the citizens of London, and humbly petitioned him to prohibit the use of coal, as a public nuisance ; and the King issued a procla- mation forbidding the burning of coal in London, and its suburbs, and commanded all persons to make their fires of wood, except blacksmiths, " to avoid the sulphurous smoke and savour of the firing." But the proclamation of the King appears to have been generally disregarded, and on a second complaint from Parliament, a royal commission was appointed, with strict orders to punish all delinquents by fines, and to destroy all furnaces and kilns which burned coal. The self-interest of the manufacturing establishments, and the necessities of the common people, however, appear to have been more potent than both royal proclamations and arbitrary commissions, for coal not only continued to be used, but within twenty years afterward, it is said to have found its way to the royal palace itself. Coal was mined in Scotland during the 12th century. At this time, we have reliable accounts of grants being made to mine coal. In the year 1189, the Earl of Winchester made a grant to the monks of the Abbey of Newbattleto work coal ; and in the year 1294, a mining grant was executed in favor of the Abbot of Dumferline, to open a coal " heugh." In 1322, Robert Bruce, the Hero King of Scotland, granted to Henry Cissor the lands of Kilbaberton for mining purposes. The coal mines of the Lothians and Fife, appear to have been the first opened. Both Agricola and Camden mention that in their days there were abandoned pits in Scotland, filled with water ; and .iEneas Silvius, afterward Pope Pius the II. who traveled through Britain about the middle of the 15th century, relates that in Scotland the beggars were in the habit of .receiving as an alms, at the church doors, pieces of coal, which they burn instead of wood, of which their country was destitute. The coal mines of Wales would seem to have been opened about the same time as those of Scotland and England. We have authentic accounts that coal was mined and used during the reign of Edward I. The first systems of mining consisted in "stripping" the coal, that is, in uncovering the bed and quarrying it out in open day. After all the crop coal was mined which could be reached in this primitive manner, drifting into the hill, by following the lead or strike of the seam, was resorted to. If the coal dipped, it could not be followed far, owing to the accumulating waters ; but if the seam were level-free, and the waters of the mine discharged themselves by gravitation, the subterranean excavations were pushed boldly forward. The first tools of the miners, the pick and shovel, were made of wood, and then of stone. As civilization advanced, and the arts and sciences began to be understood, improvements were made in mining implements, and the working tools of the coal hewer were made of iron, and pointed with steel. The common pick for undermining and shearing the sides of the coal seams has been in use in British mining since the days of William the Conqueror, retaining nearly its original shape and structure. The coal, placed in sacks, was carried from the working faces to the mouth of the drift on the backs of the miners. Then wheelbarrows were invented, upon which the coal was wheeled out to-day, and the terms barrow-man and barrow- way are still in use in many British mining districts. In ancient workings, where the coal dipped under water, day- levels were frequently cut through the solid rocks, to dis- charge the water. Some of these levels were not more than eighteen inches wide, and they were cut with remarkable . smoothness and accuracy. In time, shallow pits were sunk, generally beside some running stream, the water of which was utilized for hoisting the coal through the shaft, and then escaping from the mines by means of a day-level. Although coal is now regarded, not alone as the source and mainstay of the national prosperity of Eng- land, but even of modern civilization itself, it was necessity rather than choice, which led to its applica- tion, not only as a household fuel, but to even industrial purposes. We have seen that during the reign of Edward the First, it was banished firom the city of London as an intolerable nuisance. Even as late as the year 1661, more than three and a half centuries afterwards, a memorial was sent to the Crown by Sir Kenelm Digby, remonstrating against the use of coal, of which the following is an ex- tract: "This coal flies abroad, fouling the clothes that are exposed a-drying on the hedges, and in the spring time besoils all the leaves so that there is nothing free from its contamination ; and it is for this that the bleachers aloout Haarlem prohibit by an express law (as I am told) the use of coals for seven miles about town. Being thus incorpor- ated with the very air which ministers to the necessary res- piration of our lungs, the inhabitants of London, and such as frequent it, find it in all their expectorations : the spittle and other excrements which proceed from them beinff, for the most part of a blackish and fuliginous color ; besides the acrimonious soot produces another sad eficct by render- ing the people obnoxious to inflammations, and comes in time to exculcerate the lungs, when a mischief is produced, so incurable that it carries away multitudes by languishing and deep consumptions, as the bills of mortality do quickly inform." British writers of this period lamented to see manufactures arise which made use of coal as a necessity in their establishments. In Stowe's annals, by Homes, pub- lished in 1632, we are told the nice dames of London would not come into any house or room where coal was burned, nor willingly cat of food which was cooked by a coal fire. Until the beginning of the 17th century, coal was mainly used for household purposes, and in blacksmith forges, and by brewers, dyers, and other artificers who required a Htrong fire. It was not till the discovery of steam, and its practical application to industrial purposes, that the coal trade began to assume real importance. This mighty power, dependent upon coal, like Samson upon his hair, for strength, at once opened up a multitude of uses for coal. Then came the manufacture of gas from coal, and the dis- covery of the hot blast in the smelting of iron ; and finally, the steamboat and railroad locomotive, which made the use of coal an indispensable article of modern civilization, and THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 101 almost as important an element as water. Before the appli- cation of steam by Newcomen, for raising the waters of the mine, the subterranean excavations were limited to drift mining, or to comparatively shallow and dry shaft work- ings. The machinery in use for hoisting water from pits, previous to the middle of the 18th century, consisted of chain pumps, barrels, and sometimes ox-skins, operated by h'irse power. The horse and gin, which is often now em- ployed for raising material in the first stages of sinking shafts, was used for hoisting coal. The Germans were the first to employ rails and cars for moving the coal from the working faces to the bottom of the mine. Agricola, writing in 1550, mentions the form of the wagon then in use. It was rectangular in shape, bound with iron, and was mounted on four small wheels. The manner of working tht^ coal in those early days, was simple and rude. All the coal was removed as the workings progressed forward, except pillars of just sufficient size and strength for the immediate support of the superincumbent rocks. As a result, most of the mines were lost by the creep of the fioor, or by the pillars crushing, before the excavations were pushed to the limits of the field sought to be won. John Carr, of Sheffield, England, introduced wooden rails in British mines in the year 1775. Gunpowder was long discovered and employed for warlike purposes, before the miner thought of its assis- tance in breaking out the rock or coal. Before the introduction of railways and car,, in British mines, the coal was generally carried froin the working faces ti the bottom, and in the large coal mines to the top, of the pit on the backs of bearers. These bearers were often women and half grown girls, and in England were clothed in the same garb as the men. In the Scottish coal mines, the coal was carried in wicker cribs, fitted on the backs of the bear- ers. The cribs were held in place by leather straps passing around the forehead. In some mines, as many as two hun- dred female bearers were working at once, and the coal was carried to the top of the shaft by long winding stairways. An ordinary load of one of these female bearers consisted of one hundred and seventy pounds. Robert Bald, the em- inent coal viewer of Scotland, has estimated the day's work of the female bearers of that country, as equal to carrying a hundred weight from the level of the sea to the top of Ben Lomond. The powers of endurance of some of these bear- ers, and the loads they carried, would scarcely find credence in these modern days. A Scottish song, written by a miner on a bearer, his cotemporary in the mines, thus alludes to her prowess : " She could carry on her back what wad harry a naggy, — For trained to the coal heugh was Meg Kilbeggie." This slavish practice was not confined to Great Britain, but prevailed in equal extent in the coal mines of Continen- tal Europe, and to this day women work in the mines of Belgium. In the mines of St. Etienne, in France, the fe- male bearers were compelled to carry a certain number of loads of coal up the winding stairway of the shaft as a day's work. Barefooted, and supported by a staff; these poor crea- tures toiled harder than galley slaves. The shameful prac- tice of employing delicate females in the coal mines of Great Britain, continued until the year 1842, when_ an act of the Legislature, based upon the report of a commission appoint- ed by Parliament to inquire into the nature and results of female labor in the coal pits, was passed, which abolished a system replete with poverty, and shame and demoralization, at the very thought of which the sensitive mind revolts with horror. The same law also prohibited the employment of boys under ten years of age from working in the mines. Of the coal fields of Continental Europe, the mines of Zwickau, in Saxony, were working in the 14th century, and it is claimed that mining operations can be traced back as far as the 10th century. In the year 1348, the metal work- ers of Zwickau were forbidden to use coal in their works, owing to the supposed deleterious character of the smoke. The working of coal in Belgium, is traced back to the 12th century, at which time we have authentic accounts of min- ing operations, at Plenevaux, near Liege ; and not long afterward we learn of the mines of Charleroi being worked. Coal was used in the manufacture of arms in this country from very .early times — some historians asserting, even be- fore the invasion of the Romans under Csesar. The Belgian miners have a tradition that the existence and use of coal were revealed to an old blacksmith, a poor but worthy man, named Houillos, by an angel from Heaven. The blacksmith, who lived in the village of Plenevaux, was one day sitting in his shop brooding over his hard lot (for he was so poor that his family was nearly reduced to starva- tion), when an aged man (the angel in disguise), with a grey beard, came into the shop and entered into conversation with Houillos. The blacksmith told of his poverty and of the necessities of his family, remarking that if charcoal was not so dear he could do well enough. The good old man was moved to pity. "My friend," said he, "go over to that mountain and you will find veins of black earth which will, make a stronger heat in the forge than charcoal." Houillos repaired to the spot, and digging into the hill side, found the black stones, some of which he carried back to his forge; and so great a heat was produced, that he actually forged a horse shoe at a single heat. Overjoyed with the discovery, Houillos communicated the tidings to all his neighbors and all his fellow-craftsmen. A grateflil posterity has conferred his name upon the mineral — houllis being the French for coal. The miners of Belgium delight to tell the story of Houillos, the ancient miner of Plenevaux. We have no authentic account of mining in France till the 14th century. The history of the introduction of coal in Paris was similar to its introduction in London. It was condemn- ed, and its use forbidden in the city, because of the noxious sulphurous vapors which it was supposed to give off' in the act of combustion, and the iron merchants were prohibited from using it in their shops, on pain of fine and imprison- ment. As late as the year 1769, when the first shipments of coat were made from New Castle to Paris, it was accused of polluting the air, of causing disease of the chest and lungs, and of even impairing the beauty and delicacy of the female complexion. The matter was appealed to the Academy of Science and Medicine, which decided in favor of the coal ; but popular clamor would not be appeased, and for several years the hated English mineral was the subject of much bitter invective. The first discovery of coal in America was made by a Catholic priest, Father Hennepin, in the year 1669, in what is now the State of Illinois. His Journal, published in 1698, contained a map illustrating his travels, and he points out a coal mine on the Illinois river, where a bed of coal was exposed to view along the banks of that stream. The Richmond coal field, of Virginia, was first developed in this country, coal having been mined as early as 1750. In 1775, and during the progress of the war of indepen- dence, the coal from -the mines near Richmond was employed in the manufacture of shot and shell for the patriot army. In 1789, coal was shipped from Richmond to Philadelphia, New York and Boston. The city of Pittsburg was laid out in 1664, and twenty years afterward privilege was grant- ed by Wm. Penn, to mine coal in the hills fronting the river. Bituminous coal was" first mined in the United States, in any systematic manner, in the Pittsburg coal region ; for although the coal of the Richmond coal field was used, and even shipped to the markets ■ of the east, be- fore any attention was paid to the Pittsburg coal, the early efforts of mining in the Richmond-basin consisted not in underground mining, but in quarrying the coal. The ex- istence of the anthracite deposits of Pennsylvania was known as early as 1766, in which year a specimen of the coal of the Wyoming region was shipped to England. In 1768, this coal was first used by two blacksmiths by the name of Gore, who were originally from New England, but had settled in the Wyoming valley. They found the coal exposed in open day, on ths flanks of the mountains, and applied it in their forges in the place of charcoal, with flat- tering success. The coal of the Lehigh region was discover- ed by a hunter named Philip Ginter, in the year 1791, while returning home from a hunting expedition. He had heard of the coal of the Wyoming valley, and was always looking well about in the hope of discovering coal. He took some of it home and showed it to his neighbors, and pieces of it were sent to Philadelphia for the opinion of more compe- tent judges. For many years anthracite coal was used for no other pur- pose than the blacksinith's forge. Being very difficult of 102 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. ignition it was believed it could only be employed to advan- tage while under the action of a strong blast. In 1808, Judge Jesse Fell, of Wilkesbarre, conceived the idea of burning anthracite in a common parlor grate. Before going to the expense of building an iron grate, he resolved to make the experiment in one constructed of wood. The effort was crowned with complete success ; and the Judge, himself a blacksmith, at once commenced the work of fashioning an iron grate. Henceforth, he enjoyed his even- ings before a glowing fire of anthracite coal. The success attending the Judge's experiment was a matter of wonder to all his neighbors, who, for many days and weeks, thronged from far and near to witness the burning of a stone coal parlor fire. Before this time, a number of efforts had been made in Philadelphia to use the stone coal of the mountains, but without success. In 1803, the Lehigh Coal-Mine Com- pany, among whose members was the celebrated Robert Morris, shipped six barges of coal from the Lehigh region to Philadelphia, four of which were lost by the way, and the remaining two, after much difficulty, were disposed of to the authorities to be used as fuel for one of the city engines. But the coal could not be made to burn ; it was pronounced " black rocks " instead of coal, and was broken up into gravel and thrown upon the side walks. Five years elapsed before another effort was made to introduce the Lehigh coal in the eastern cities, and again it was a failure. In the year 1814, five barges were loaded at -the mines, two of which reached Philadelphia in safety, and the coal found ready sale at $21 a ton, for by this time the secret of burning anthracite coal had been discovered, and the foundation of the anthracite coal trade had been laid. — Compiled from ^^Tlie Coal-Minea by Andrew Boy.*' THE EARLIEST ATTEMPT TO SECURE A DISCOVERER'S RIGHTS. AS being of great historical interest to the mining men of America, we reprint here, in its entirety, a little volume that Mr. Israel W. Morris, of Philadelphia, was fortunate enough to chance upon while exploring an old book stall. It presents the earliest attempt to secure to the discoverer in America his rights to a mining claim of which we have any knowledge. Its quaint pages of one hundred and eighty-three years ago contain also a remarkable prediction about the abounding mineral wealth of this continent, and of which the earnest author could hardly have known much even in his most mad dreams. The fol- lowing is the book : THE GOLDEN TREASURY: OR, THE COMPLEAT MINOR. BEING Royal Institutions, oe Proposals FOK ARTICLES To Establish and Confirm Laws, Liberties & Customs of SILVER & GOLD MINES, to all The KING'S Subjects, in such Parts of AFRICA and AMERICA, which are Now (or Shall be Annexed to, and Dependant on the CROWN of England. With Rules, Laws and Methods of Mining, and Getting of Precious Stones ; The Working and Making of Salt-Peter ; And also, The Digging and Getting of Lead, Tin, Copper, and Quick-Silver- Oars, in Any or Either of those Coun- tries ; Whereby Navigation, and Trade, with the Subject's Interest and Riches, together with the CROWN'S Reve- nues, would be greatly Encreased in a little Time. Most Humbly Offered to the Consideration of the King's most Excellent Majesty, & this Present Parliament. LONDON, Printed for the Author, and sold by J. Marshal at the Bible in Grace-church-street, 1699. TO THE KING'S MOST Excellent Majesty; Together, with the Present PARLIAMENT Assembled this Thirteenth Day of February, 1699. Great C^SAR, and SENATORS, In all Humility, most Humbly I inform You There is nothing more Certain and Irue, Than that there are many extraordinary Rich Veyns, Mines, and Mineral Countries, in some Parts of America, which are now An- nexed to, and Dependant on the Crown of England ; (the Experience and Truth of which, nothing but want of Skill in Mineral Affairs, and Incredulity can or will deny); which Veyns and Mines, if they was Sought for, and Set to Work, by any that understands them, would undoubtedly, in a little Time, prove as Rich as any the Spaniards have in Peru, or on the North Side of the ^Equinox, in New-Spain ; and, in a few Years, would produce and raise great Quantities of Silver, Gold, Copper, and other Valuable Things, to the Great Con- tent and Satisfaction of the English ; provided there was any Regular Laws, Rules, and Methods Settled, for Working and Carrying on the said Mines ; by which LAWS, the Enter- prisers, or Undertakers thereof, might Enjoy and Secure their Rights, Interests, and Properties therein, to Them, their ^Heirs, and Assigns, after they have been at the Cost and Charges of Finding and Discovering the said Mines. But as the Royal- ties thereof stand, at present, (in their respective and separate Grants from the Crown) to a few Proprietors, who form- erly hath not, at present doth no t, nor hereafter, in all Proba- bility, will not use any effectual Ways and Means to Work and Discover the same; whereby this excellent Undertaking hath hitherto been Neglected and Slighted, and is yet rendered Impracticable to all Englishmen ; and so will remain to Pos- terity ; by ichich many Rich Veyns and Mines have been, are, ., TraTisacliom American Institute of Milting Engineers. THE DISCOVERY OF EMERALDS IN NORTH CAROLINA. THAT emeralds have been found in the United States, has been doubted. The press has stated "the dis- covery of emeralds needed confirmation." It is my pleasure to show you convincing proof of the exist- ence in our country of this rare and beautiful gem. Since, what the impetus was that started the search for emeralds in North Carolina would be of interest, I will give you the story, gathered as it is from a year's residence on the spot where the discovery was made. Sixteen years ago the site of the North Carolina emerald mine was covered with a dense primitive forest. Less than ten years ago the locality was mineralogically a blank, nothing was known to exist there having any special interest or value. This new mineral region (and I state this from my own experience in collect- ing) has produced lately some of the most remarkable and beautiful specimens of emerald, spodumene, beryl, rutile, monazite and quartz thus far discovered in the United States. To be brief, I will say, that in a few localities in Alex- ander county, crystals would be found of the cominon opaque beryl ; but occasionally a semi-transparent prism, having a decided grass-green color, much resembling the famous crystals from Siberia, so familiar to mineralogists, would be found and offered for sale in the neighboring towns. Those came to have the name among the farmers of "green rocks " and "green bolts." From the fact of their selling for more than anything else they found these green crystals became the ultimatum of their searchings. Among other curious names for minerals were " Donicks " quartz crystals, "Black Bolts" for prisms of tourmaline, "Red Metal" for rutile crystals, and "Needle Rock" for the beautiful sagenite, or Arrows-of-love-stone. Suffice it to say that in a period of about six years, there were found loose in the surface soil, on three plantations in this county, a small number of beryls having a color verging distinctly upon the true emerald tint, none of which crystals, however, were deep-colored or transparent enough for use as gems. That such indications could receive only passing notice from collectors, is really inexplicable. A very natural conclusion would have been that where these pale emeralds were found loose in the soil, darker and purer ones would be found by mining for them. Such inducements as the following were held out to the farmers to search for these " green bolts." A visiting collector had offered the munificent sum of one dollar to farmers who should find a crystal as long as his finger, which must, to merit the dollar, be dark green, pure, trans- parent, and with perfect terminal planes and prismatic faces ! Such is the history of the emeralds found in Alex- ander county, before I commenced systematic mining for them. The location of the mine was obtained in the following manner. A corps of workmen was employed to dig a series of deep ditches in directions that would cut the strata at difierent angles. The site chosen for work was on the spot where at least half a dozen pale emeralds had been found. This location was shown to me by the farmer who had dis- covered the specimens while plowing. Not knowing then their manner of occurrence, I expected in this way to strike a vein bearing them. Five weeks were spent (in July and August, 1880,) before any success was met with ; and then, at a depth of eight feet, was discovered a " blind vein " (so called because it had no outcrop), having very small em- eralds. In this vein, or pocket, as it proved to be later, and outnumbering the emeralds fifty to one, was also found the new emerald-green mineral which was such a surprise to the scientific world, and which was destined to answer the same purposes as did the gem I sought. I refer to the spodumene-emerald, now known as Hiddenite. You must pardon this digression, but the search for emeralds is so in- terwoven with my discovery of emerald-green spodumene that I cannot tell the story of one without the other. The two minerals occur intimately associated, and while mining for the one the other is constantly found. This " blind vein" yielded very handsomely of the new mineral, but very sparingly of emeralds, and the few found were too small to be useful as gems, though their color was very good. A tunnel, for the purpose of drainage, 261 feet long, mostly through rock, was cut to this vein, and a shaft sunk down upon it. At this time the work on this vein has reached a depth of 36 feet, at which point it proved its pocket nature by pinching out — closing together. Thus-, far, twelve of these pockets have been found within an area of forty feet square, carrying emeralds, four of which pockets contained also the spodumene-emerald. All these veins maintain nearly the same character of dip, thickness, length and associations. Other pockets were found that yielded Quartz, Rutile, Mona- zite, and Mica crystals of great beauty. Others yet, whose walls were covered with finely crystalized Dolomite, Calcite, Apatite (transparent and pellucid) Rutile, Pyrite, Quartz and Mica. In one instance, a small pocket that contained two beautiful emerald crystals, had its walls covered with large crystals of Albite. Another pocket contained only Mica crystals and one small pellucid colorless beryl that had both ends brilliantly terminated with many planes. I mention the above associations, that 3'ou may learn the di- versity in these pockets, although they are so near together. In the rock-mining, and while prospecting on the surface, the sign of a vein is the presence of small streaks of mas- sive quartz, or of mica, in a counter direction to the strike of the country-rock, either of which lead to open pockets not many feet off. The gems have thus far been found loose- ly attached to the rock. Not over nine emeralds have been found at any one time. Mineralogists have a great treat in store for them, when deep rock-mining is accomplished here. Then the gems will be found firmly attached, and they will shine with all their primitive crystalline beauty. The lar- gest emerald found in this mine is SJ inches long, and weighs nearly nine ounces. It was one of nine fine crystals con- tained in a single pocket ; their color was excellent, and they were transparent, though somewhat flawed. The localily is situated about 35 miles, air-line measure, S. E. from the " Blue Ridge " mountains. The contour of the country is low rolling, and its altitude is about 1200 feet. The soils are chiefly red gravelly clays, of not much fertility. The prevailing rock is gneiss, with more of a feldspathic than a micaceous character ; the trend of the strata is N. N. W. and S. S. E. with a dip nearly vertical. The gems and crys- tals occur in open pockets of very limited extent, these are cross fractures or fissures in the rock. These fissures are usually nearly perpendicular. To a foreign geologist, entering the Soxith Atlantic States for the first time, a hundred miles or more from the coast, the most striking and novel feature of the geology is the great depth of earth that everywhere mantles and conceals the rooks. This is readily discovered to be, for the most part, merely the result of the decomposition in situ of the exposed edges of the underlying strata. The vertical and highly inclined bedding lines or strata, are distinctly trace- able by the eye, through this superficial earth covering, and are seen to pass by insensible gradations into the undecayed rock beneath. At this locality, the unaltered rock is found at a depth of twenty-six feet, and is of unusual hardness especially where it walls the gem-bearing pockets. Thus far the gems have been found in a narrow belt running N. E. and S. W., aud scattered over a distance of three miles. In this belt, signs of cross-fissures are vcrv abundant, and it is a very cominon thing to find crystals of quartz, rutile, tourmaline, etc., etc., perfectly preserved, scattered over the surface. A pe,culiar feature pertains to most of the emeralds and beryls from this region. They appear as though filed across THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. 125 the prismatic faces. The basal plane is also often pitted with minute depressed hexagonal pyramids, that lie with their edges parallel to one another, and to the edge of the di-hexagonal prism. Rarely, though, crystals are found with perfectly smooth and brilliant faces. The emerald col- or is often focused on the surface, and fades gradually to a colorless central core, which feature is of exceeding interest when the genesis of the mineral is considered. The emer- alds have been found of richer color, and less flawed, as the mine gets deeper. In regard to the commercial value of the emeralds thus far found, I will frankly state that the major- ity of the crystals have little value "for gem purposes ; but as cabinet specimens they are unprecedented, and as such have a market value ranging from $25 to $1,000 each. From the largest crystals, stones of over one carat weight could be cut, that would be marketable as gems ; but as scientific specimens, the crystals in their entirety would have greater value. Certainly no better signs could be wished for than these specimens, to prove the existence at this locality of dark-colored crystals, pure enough for cutting into valuable gems. This region has a great future as a gem-producing district. Mining skill and capital are the only essentials needed to insure success. It may be interesting to note that the entire expense of the work at this locality has been more than repaid by the sales of the gems (Hiddenites) dis- covered. — CompUedfrom a paper by Wm. Earl Hidden, Tramactiom New York Academy of Sciences. THE MINERAL RESOURCES OF SOUTH- WESTERN VIRGINIA. Among other known localities may be mentioned Round Mountain, Nye's Cove, Newberry's, and other places in Bland County ; Whitely's Ridge, Kent's Ridge, and numer- ous other places in Tazewell County ; Kent's Ridge, Copper Ridge, Clinch River, in Russell County; Copper Ridge, Mocasin Ridge, Big Ridge, Newman's Ridge, Powell's Mountain, Boatwrignt's, in Scott County ; the neighborhood of Big Stone Gap, in Wise County ; Bale's or Bowling Green Forge, Waldin's Ridge, Poor Valley Ridge, in Lee Countj^. The strictly fossil ores are found in continuous veins in Walker's Mountain, Gap Mountain, Clinch Mountain, Round Mountain, Wolf Creek Mountain, Pearis's Mount- ain, Buckhorn, East River Mountain, Peters's Mountain, Paint Lick Mountain, Salt Pond, Butte, Newman's Ridge, Powell's Mountain Waldin's Ridge, and Poor Valley Ridge, in the counties of Giles Montgomery, Bland, Pulaski, Rus- sell, Scott, Wise, and Lee. Of these localities, the best fos- sil ores I have seen came from the Clinch Mountain, in the line between Washington and Eussell counties ; Poor Val- ley Ridge, near Pennington's Gap, in Lee County ; Boon's Path, the same county ; East River Mountain, Giles County, and one or two points in Wolf Creek Mountain, Pearis's Mountain, and Round Mountain, in Bland County. The Giles and Bland fossil ores assayed, according to H. Dickinson, of Norwood, Mass., as follows : THE region to which this paper calls attention, though limited in area, is remarkable for the quan- tity and purity of its mineral deposits, and in these respects it would be difficult to hnd its equal any- where. Iron Ores. — The red and brown hematites, pipe ore, and semi-magnetites, from which is made in charcoal furnaces the highest quality of iron for car wheels, extend through the counties of Giles, Montgomery, Pulaski, Wythe, Smythe, Washington, Bland, Tazewell, Russell, Scott, Lee, Floyd, Carroll, and Grayson, Virginia, and run over into Ashe County, North Carolina. One locality of semi-mag- netite, in the centre of the great Giles county basin, has in sight, by actual measurement, 50,000 tons of ore, which, according to Prof. Fesquet, contains 69.74 per cent, of iron and no phosphorus. In the great brown-ore belt, which passes through the counties of Montgomery, Pulaski, Wythe, Smythe, and Washington, there is an extraordinary deposit of more than a million tons. A small section of this very long vein on Cripple Creek, in the county of Wythe, yields an ore which, analyzed by Mr. James Aumann, gave the following results. Metallic iron, 58.15 ; water, 12.96; alumina, 2.32; silica, 1.09; phosphorus, none. At one point towards the western end of Red Land Mountain, in Pulaski county. New River section, there is a body of ore in this belt which will yield, to a depth of 150 feet, over 8,000,000 tons, and the deposit extends far below the 150 feet measured at the upper part. Again, at Rich Hill, near the mouth of Eeed Island Creek, these veins show extraordinary surface development, giving an ore of very great purity. At numerous places, also, in the counties of Giles, Bland, Tazewell, Russell, Scott, Wise, and Lee, these brown and red iron ores are exposed in such vast quantities as to baffle both description and measurement. That of Chestnut Flat, in Giles county, back or west of the Angel's Rest Mountain, is an easily reducible ore, blood-red when crushed, of which there are fully 300,000 tons in sight. Its analysis is as follows : Sesquioxide of iron, Oxide of rnunL^anPS*', Silica, . . . Alumina, . Lime, . Magnesia, . . Sulpliuric acid, Phosphoric acid, . . Water, hygroscopic, Water combined, 89^5 0.20 2.58 l.ll 0.20 15 0.37 30 1.25 4.10 Sesquioxide of Iron, . Oxide of manganese, Alumina, . Lime, . , Magnesia, . . . Potassa and Soda, . Silica, .... Sulphuric acid^ . Phosphoric acid. . . Water, hygroscopic, Water, combined, . Organic matter . 58.12 0.06 4.07 0.20 0.41 0.4U 32.74 0.00 0.75 0.60 0.96 0.84 Other ores from the fossil belt in East River Mountain gave Prof. Fesquet 50.36 per cent, of metallic iron. The true magnetites are principally found in the more ancient rocks (Laurentian) in the counties of Floyd, Carroll, and Grayson, Virginia, and in Ashe County, North Carolina, in veins varying between 3 and 30 feet. One well-defined vein at Ballou's, on New River, in Ashe County, N. G, is 30 feet in thickness by 160 feet elevation above water in the river, the dip varying between 28 and 60 degrees. For a length of 300 feet it is very accessible to the river, and shows 1,- 800,000 tons of ore that yields, according to Mr. John Ful- ton, 0.031 per cent, of phosphorus. Another portion of the vein holds 0.026 per cent, of phosphorus, by the analysis of Mr. F. P. Dewey. These veins, of which three in the local- ity just named, are almost continuous through Ashe County, North Carolina, and Grayson, Carroll, and Floyd counties, Virginia, will yield so vast an amount altogether that they can scarcely be ranked as second to any known depos- its. Floyd County, at the Toncray Mines, gives fine mag- netite, somewhat south of the general direction of the above veins. The semi-magnetites are found in the counties of Giles, Montgomery, Carroll, Wythe, Smythe, and Washing- ton. Many of them contain, according to the analyses of Messrs. Booth and Garrett: Metallic iron, 65,690, Phos- phorus, 0.028. Their quantity is not yet so fully determin- ed as the true magnetites and peroxides. They occur usu- ally as semi-magnetic red ores. The Lead and Zinc Ores. — ^These ores are confined principally to the counties of Wythe, Pulaski, Montgomery, Smythe and Washington, and one or two localities in Bland, Russell, and Scott counties. While occurring in large quan- tities in Pulaski and Montgomery, their greatest develop- ment seems, from all explorations to the present, to be in Wythe County, from near Reed Island Creek to the south- west, along New River and up the waters of Cripple Creek. The ores undoubtedly belong in the rocks of No. 2. It is an error to place these measures in the upper part of the Tren- ton limestones, as it is understood some persons have done. The extraordinary quantities of carbonate, oxide, silicate, and sulphide of zinc, and sulphide of lead, at different points in Wythe County, suggest the idea of a very large continu- ous deposit. Perhaps the following measures, taken on Painter's Branch, known originally as the Kitchen's, Noble's, and Painter's mines, may not be uninteresting: Dip of measures 30 degrees northwest, measured with the clino- meter in a deep shaft, as well as other places. Beginning 126 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. on the floor or southeast wall of the main measure, we have 144 feet of heavy blend-bearing strata ; then 36 feet of dolo- mite, with occasional spots of zinc and lead ; 36 feet iron sulphuret and oxide; 90 feet dolomitic rock, containing large veins and deposits of zinc and lead sulphuret, one of which is 18 feet thick ; 180 feet of iron, zinc, and barytes, heavily disseminated in the rock ; then toward the northern or hanging wall an indefinite amount of dolomite, more or less charged with barytes. The hill, along the crest of which these measures were taken, is 75 to 100 feet above the water in the small creek flowing near. This series of rocks trends through the country for many miles in a general direction N. ■ 70° E. At the Wythe lead and zinc mines, on New River, the great pressure apparently exerted from the southeast throughout this whole region of country, in folding the earth's surface, has met with such resistance as to cause a partial fusion of the various strata holding the lead and zinc. Hence the whole body of the rocks is more crystalline^ in structure, and has less of that appearance of stratification which is so apparent at other points. Here the measures from which this ancient lead company has, under one form or another, for more than 100 years taken its ores, are forty feet in thickness between walls of dolomite, with a dip of 70° in the main drift, which is reached with a tunnel 1600 feet in length. Numerous excavations over this hill show other deposits of lead of good dimensions, as well as large bodies of zinc ores of high grade. The Bertha mine now shows a face of silico-carbonate and oxide of about 180 feet by a depth of 20 feet, with the ore still below. Numerous shafts in this and adjoining hills show the continuity of the beds from which the recently erected smelting works on the At- lantic, Mississippi, and Ohio Railroad, at Martin's Station, derive their ores. On the headwaters of Walker's Creek, in Bland County, there are lead and zinc ores, as well as in other localities to the northeast and southwest. Copper. — The three great lodes of copper which are known to exist in the section under consideration, pass through the counties of Floyd, Carroll, and Grayson, Vir- ginia, and continue on through Alleghany, Ashe, and Watauga counties. North Carolina. There is another — ^the native lode — confined to Carroll County, Virginia. This lode difiers from the rest in being apparently injected from below, and is associated with tremolite and hornblendic trap, having a trend from N.W. to S.E., while the direction of the first-named lodes is N.E. to S.W. The first three are distinguished as the Northern or Iron Lode (having its greatest development in Carroll County), the Middle or Peach Bottom Lode, and the Southern or Ore Knob Lode. The middle lode shows best at the Peach Bottom Mine in Alleghany County, and at Elk Knob, in Watauga County, North Carolina, while the southern has its finest develop- ment at Ore Knob, Ashe County, Noi-th Carolina, and at Toncray Mine, Floyd County, Virginia. The Ore Knob Mine has given sulphuret ores from a vertical vein, 18 feet thick, averaging 25 per cent, of copper, at a depth of about 300 feet from the surface. This ore is being converted into ingot copper at the mine, by the extensive plant of the Ore Knob Copper Company. At th'e Toncray Mine, on this lode, the better grades of ores have been exposed in a vein 30 feet thick, but dipping S.E about 45 degrees, and having on its northern wall 4 feet of excellent magnetite. On the northern lode, at some points in Carroll County, can be found a thickness of fully 150 feet. At one point, where it gives this measure, a shaft sunk into its central portion shows sulphuret ores which will average 5 per cent, of cop- per for 30 feet in width, while the remainder of the 150 feet on either side gives only 1.70 per cent, of copper. This great lode is marked by extensive beds of gossan, forming most abundant and useful hematite ores. It may be as well to say that throughout this copper belt there are numerous other minerals, both interesting and highly valuable, — specular ores, mica, feldspar, asbestos, and gold and silver, as at Cowles's, Gap Creek, in Ashe County, North Carolina; gold being also found on Bush Creek, and Little River, in Floyd and Montgomery counties, Virginia, and silver in the ores at Peach Bottom Mine, and at the Clifton opening, near Old Town, on the northern lode. To these, also, may be added njckel, cobalt, antimony, and arsenic.. CoaL — Southwestern Virginia holds a very large area of the southern portion of the great Kanawha Coal Basin proper ; the counties of Tazewell, Russell, Scott, Buchanan, Wise, and Lee, participate in it; while in the counties of Montgomery, Pulaski, Wythe, Smythe, and Bland are found the coals which belong more strictly to the protocarbonif- erous series, and are designated generally as the Upper New River series. The former may be considered as belonging nearer the great Carboniferous, from the regularity and continuity of both the coal and the accompanying rocks. The latter have, also, been found to run for miles through the counties named with surprising regularity; so much so as to baflie those gentlemen who, basing their opinions on the unreliability of corresponding measures in Pennsylvania, ventured to predict the same character for the Virginia beds. Daddow was one of the first to recognize that these measures were of a highly valuable nature ; and recent developments have fully proved his conclusions. Witness the operations of the Altoona Coal Company at Martin's, in Pulaski County ; of the Blacksburg Company, and numerous others, in Montgomery County; of Colonel Boyd, and Joseph Crockett, in Wythe County, and others, in diiferent locali- ties. It is undeniably true that much of this area has been badly injured by the convulsions to which this part of the earth's crust has been subjected ; but there are large areas which have been preserved in almost their original regu- larity, or, if disturbed, only to the advantage of the miner. Those veins vary in thickness, being 22 feet at Altoona, 8 feet in Montgomery, 5 feet in Wythe, and less at other points, generally with a uniform pitch of SO and 42 degrees in different parts, except where there are well-defined basins, as in Pulaski, and the lower part of Wythe and Montgomery counties. These dips then apply mainly to the outcrops, while the central portions lie nearly flat. The southeastern portion of the Great Kanawha Basin, which we have just mentioned as being confined to the counties of Tazewell, Russell, Scott, Buchanan, Wise, and Lee, cannot be overestimated as a mineral producing region. These counties hold the most valuable bituminous coal veins, accessible to the miner, and close to the ores which they are intended to reduce, in the country. Within seventy-five miles of vast quantities of the iron, copper, lead, and zinc ores are found horizontal veins of fine bituminous and block coals, measuring 11 feet, 8 feet, 5J feet, and 4 feet, running for miles reliably through the extended area above men- tioned. It is true that a part of the extreme southeastern edge of this area is somewhat broken up by a double fault ; but immediately back of this begin the flat dips and reliable measures above alluded to. There is, also, in Southwestern Virginia the largest and most valuable virgin forest in the United States, comprising poplar, cherry, walnut, oak, hickory, white pine, hemlock, and locust. In conclusion may be added, as of interest to iron manufacturers, the fol- lowing analysis, made by Mr. Dickinson, of a limestone from the Lower Helderberg group at the base of Flat Top Moun- tain, Dismal Creek, Giles County : Lime 49.42 Magnesia .... 2-04 Protoxide of iron . . ].53 Oxide of manganese 0.15 Alumina 0.4S Silica 2.9 1 Sulphuric acid . . 0.02 Phosphoric acid . ... 0.04 Carbonic acid 42.00 Water .... 0.60 Organic matter 0-78 During 1868 zinc ore was mined at the Union Lead Mines, and shipped to Trenton, N. J., and to the Lehigh Zinc Works at Bethlehem, Pa. It was sold at the mouth of the shaft at $6 a ton, and the average cost of raising it was $3.50 a ton. At this time the cost of pumping the water alone at the Friedcnsville mines amounted to $6 to the ton of ore. About 2500 tons of zinc ore were raised that year. Double this amount mi^ht have been produced but" for the short- sighted policy of the proprietors, who would not make the , necessary outlay for the improvement of the dressing machinery. The Union Lead Mines have produced since 1338 12,167 , tons of pig lead (2,000 pounds), charcoal being used for' reduction. Before the war the cost of production was 2.4 to 3.1 cents per pound, during the war as high as 12 cents (gold), and since the war up to 1869 5 cents per pound. If these mines had been in the hands of a vigorous company [ four times this amount of lead could have been produced. THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. 127 As much as 745 tons have been raised in one year, but the necessary exploration being neglected this production could not be maintained. A tunnel 1100 feet in length, which cost 132,000, is now used only as a tram road, connecting with an old shaft which is used as a shot tower, when it might be the main avenue of large and productive mines. The iron resources of the western part of the State are especially remarkable, both for the quantity and quality, as well as for the variety of the ores which occur there, and also for the manner in which they occur, which renders their mining so extremely easy. Commencing at the Mary- land line the whole belt of country which lies between the Blue Ridge and the Allegheny Mountains may be said to be ferriferous. On the eastern side of the Blue Ridge the Archaean orei are found, which are followed on the western slope by the ores of the Potsdam period, greatly developed, then the Clinton and Oriskany groups. Incidentally depo- sits are found in other formations, as in the Trenton lime- stone, or as it is there called the Valley limestone, and also in the Hamilton shales. These last are»pockety, while the others are regular geological beds. Independently of these are the magnetic belts of the James River in the southwestern part of the State. It is astonishing that so little attention has been called to the mineral wealth of the State of Vir- ginia. There seems to have been a theory that the Oriskany sandstone, which is the great ore-bearing formation of the State, was too rich in silica to be worked. This finds ex- pression in the Geologists' Travelling Handbooh, in which it is distinctly asserted that the Oriskany formation contains no ores that can be utilized for the manufacture of iron. Shortly beyond the Maryland line the great Shenandoah Valley is cut in two, in the direction of its length, by the Massanutten Mountains, and in their valleys the Potsdam ores are worked on the western flanks of the Blue Ridge, while the Clinton and Oriskany ores are worked on both slopes of the Massanutten Mountains. Not far from Staunton these mountains abruptly terminate, and the valley opens for several miles the whole width between the two ranges. Commencing at Buffalo Gap, the ores reappear on the wes- tern flanks of Little North Mountain. The Clinton ores outcrop occasionally, and in some places, as at Clifton Forge, are well developed, in three beds about one foot each in thickness, and have been mined to a considerable extent. The Oriskany is, however, the formation which usually ap- pears in force. It has been folded on itself and afterwards eroded, so that for a distance of more than fifty miles, it crops several times at short intervals high up on the hill- side, in beds of from twelve to twenty feet in thickness, and in a few localities even thicker. Very little work is done on the Potsdam beds. In the Massanutten Mountains the most prominent ore is that of the Shenandoah Iron Works, where a small charcoal blast furnace is being worked. The only other furnaces at work, at the present time, are those at Longdale and Quinnimont, though an eighty-ton furnace is being constructed at Low Moor. The coals of West Virginia are remarkably pure and h-ee from sulphur, and are as low as two per cent, in ash. An- alysis of the cokes, shows them to contain rarely more than six per cent of ash, which is a much lower average than that of the Connellsville coke. These averages of the coals and ores are given of over one hundred samples, which were very carefully analyzed. The Virginia iron deposits justify the erection of a very large number of furnaces. Very few of the ores are suitable for making Bessemer pig, but for other purposes the ores are of good quality and rich ; the coke is excellent, and remarkably "free from ash sul- phur, and phosphorus, while good limestone and plenty ot water can be had in abundance. -O^m^aei Ao» a pape. l,y C. S. Boya, M. E. """--f «,.t7^^;L^.''«' MAGNETIC IRON ORES OF NEW JERSEY. THE magnetic iron ores of New Jersey are found in the northern part of the State, m the Highland Mountain range, which runs from the New York line on the northeast, to the Delaware River, near Easton, atthe southwest. The same range continues across Orange county to the Hudson river, and towards the south- west it is known in Pennsylvania as the South Mountain. It is, more properly, an elevated table-land, quite deeply furrowed by several narrow, longitudinal valleys, and shorter cross-valleys, or gaps. The ridges, or lines of ele- vation, as well as the lower valleys, conform in their general direction verj' closely to the general trend of the whole belt or table-land, that is, from the northeast to the southwest. This also agrees with the prevailing strike of the rocks. This great uniformity in the altitudes of the hills and ridges, and the direction of the lines of depression corres- ponding to the strike of the strata, point to original table- land, which, through the long action of denuding agents, has been quite deeply eroded, giving rise to the present sur- face configuration, so that some of the former and uniform features have been partially obliterated. The very few cross-valleys or depre sions are much more irregular in their course, and serve as outlets through which the drainage is carried, either into the Kittatinny Valley on the northwest, or to the broad red shale and sandstone plane bounding the highlands on the southeast. The area of this highland region in New Jersey is about nine hundred square miles. Its average elevation above the ocean is about one thousand feet. Except the valleys toward the northwestern border, as the Wallkill, Musconetcong, Pohatcong, and German, which con- tain magnesian limestone and Hudson River slate, this whole range consists of crystalline rocks, mainly gneiss, granite, syenite, and limestone, covered in many places by drift and alluvial beds. These rocks resemble closely those of the Laurentian formation of Canada, both in their structure and in their mineralogical characters. Stratification is nearly everywhere plain, indicating a sedimentary origin and sub- sequent metamorphism. In the Geological Survey reports of the States they have been described as belonging to the " Azoic Formation." It is in this series of crystalline, met- amorphic rocks, that the magnetic iron ores occur. The ex- tent of this outcrop and the iron mines and localities at which ore in workable amounts has been obtained, are both indicated upon the geological maps of the State survey, one of which has recently been published. This map shows the mines as in lines nearly parallel to one another, and having the same direction as that of the whole belt or range. In some instances they arc so close as almost to form a contin- uous line, as the Mount Hope, Allen, Baker, Richards, Mount Pleasant, and others, near Dover, in Morris County. Others appear in sort of en tchelon arrangement. This occurrence in lines, or what may be more properly ^ termed ranges, is so well known that miners and those ' searching for ore speak of veins continuing for miles, and of certain mines belonging to certain veins. Large and pro- ductive mines, as the Hibernia, Mount Hope, Dickerson, Ogden, and Kishpaugh, with others, give names to such lines. The complete breaks in veins worked, and the ab- sence of any indications of continuity, show that these pop- ular theories are not yet substantiated by the facts, although, if by the terms lines or veins, or, better, ranges,- series of ore beds whose several lines of strike or axes run closely paral- lel to one another, are meant, then they have a foundation in truth. In the " Geology of New Jersey," published in 1868, the mines then opened were grouped in such lines, and these were called ranges. The map accompanying that report, as well as the one just issued by the State Survey, shows these lines and the intervening barren belts. A com- parison of these two maps confirms in some degree this the- ory of ranges, or what would be better termed, ore-belts, in- asmuch as the hundred or more new mines and ore outcrops opened since 1868, and represented on the latter map, are nearly all either on old and well-known lines or what must be considered as new ones. These discoveries have short- ened the gaps and widened the ranges. Thus the new mines near Chester, and those along the eastern base of Copperas Mountain, all in Morris County, have filled in wide blanks, and greatly extended what were but faintly indicated as ranges or belts of ore. The numerous openings quite recent- ly made on Marble, Scotts, and Jenny Jump Mountains, in Warren County, constitute a new and marked line. In this the manganiferous character of the ore throughout its whole length seems to give additional evidence in proof of such a relation. An order of arrangement or di- vision into such lines or belts, based upon lithological and mineralogical characters, has not been possible, but it is 128 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. hoped that further studies will develop the existence of such characteristic features which will confirm the indications from the geographical distribution. The last map also shows groups of mines, between which very little ore has been found. One of the best known and largest of these groups is near Dover, Morris County, and a map of this district was published in 1868. Northeast of this there is an interval of several miles, extending almost to Ringwood, in which there are no working mines, and comparatively but few localities where ore is known to exist. But the newly opened Board, Ward, Green Pond, Pardee, and Splitrock mines show that the lines of ore are beginning to be traced into this hitherto barren district, and point to future discoveries which will connect the Ringwood and Sterling groups with the Morris County lines. A lack of cheap and ready transportation has prevented the thorough examination of this part of the State, or the development of any localities which were prom- ising. The extended workings in the older mines are also doing much to prove the great length, and probably contin- uity, of some of these veins. Thus the long line from Mount Hope to the Dickerson mine, a distance of seven miles, has been so opened as to show an almost uninterrupted bed or vein of ore, or a series of veins parallel to each other, and all within a very narrow belt ; and all of the facts of geograph- ical distribution, as well as the arguments which could be drawn from the probable mode of origin of this ore, tend to support this theory of lines or ranges, or better, perhaps, belts of ore. Magnetite, as a mineral, is very common in the crystal- line rocks of the Highlands, occurring more frequently than any other mineral, excepting the ordinary constituents of the gneissic rocks; viz., quartz, feldspar, mica, and horn- blende. And so widely is it distributed that it is impossible to find many strata in succession where it is entirely want- ing. It appears as one of the constituent minerals of these beds, either wholly or in part replacing their more common components, or it is added to these, and in each case occurs in thin layers or larainas alternating with them, or it is ir- regularly distributed through the rock mass. The unstrati- fied granitic and syenitic rocks, as well as the bedded gneis- ses, also often contain magnetite. In these, however, it oc- curs in larger and more irregular crystalline masses or bunches, and does not appear to be so properly a constituent of the whole, but rather as foreign to it. The same mode of replacement is sometimes seen in these as in the stratified rocks. In both these classes it enters into the composition • in all proportions, increasing in amount until the whole is sufficiently rich to be considered as an ore of iron. Between rock entirely free from magnetite and the richest ore there is an endless gradation, making it impossible to fix any oth- er line of demarcation between them other than that of the minimum percentage for the profitable extraction of the iron. Three modes of occurrence have been assigned to this mineral, two of which are in the rock, as one of its consti- tuents eithet in irregular bunches or in a granular form, and the third in seams or strata, when it is called ore. But these distinctions are not fixed, and therefore it is better to consider it as one of the more common minerals of these gneissic and granite rocks, and in places forming the whole mass, or else so much of it as to be workable, and then to be called an ore. Rock containing from twenty to forty per cent, of metallic iron, the most of which is in the form of magnetite, has been found in many places, and some of these have been explored to a considerable extent in searching for richer ores. The granitic and syenitic rocks containing magnetite are generally found to cut the beds of gneiss, and are, geologically, huge ore-bearing dikes. The most com- mon mineral aggregation is feldspar, quartz, magnetite, and hornblende, or mica, although in some cases both the latter enter into the composition. Such rook is worked at a few points, but these operations are not yet worthy of the desig- nation of mines. And, in fact, the great irregularity and the varying percentage of iron in it does not make it a de- sirable ore. Gneiss containing magnetite in quantity suf- ficient to render it workable, has been opened and mined at several localities. Perhaps it would be called lean ore. One of the mo«t extensive outcrops of such ore is near the Pe- quest mine, in what is known as the Henry tunnel, about two miles north of Oxford Furnace. Here there is a breadth of twelve feet or more, in which the beds are highly impreg- nated with magnetite, while those on each side are free from it. Extensive drifting and sinking have exposed several hundred feet of these beds on the line of strike, and shown an increase in the percentage of iron going from the surface to the lowest levels. Near Hackettstown, in Warren Coun- ty, there are several localities of such ore-bearing rock, but nearly all of them are failures as mines. The ■Scrub Oak mine, near Dover, the Combs mine, near Walnut Grove, have large portions of their veins so mixed with rock that they may be classed with the above localities of ore-bearing gneiss. And all the lean ores of the State may be consid- ered as gradations in the series from rock to what is conven- tionally termed ore. While it is impossible to separate these lean ores from the rock upon any decisive or marked distinctions or differences, the richer ores are to be considered as a distinct mode of occurrence, as these diflTer from the lean ores and rock in their simplicity ol composition, being made up of fewer ele- ments, and these predominating to the exclusion of all others. Assuming^his as another mode in which the mag- netite occurs, the geological features of these seams or strata may claim our attention. They are often called veins be- cause of their highly inclined or almost vertical position, and hence resemblance to true veins. Their irregular form has helped to strengthen this opinion of them. But as they show well-marked planes of stratification and also lamina- tion, both parallel to the beds of gneiss which inclose them on the sides, and have strike, dip, and pitch, and are folded, bent, contorted, and broken, just as stratified rock, they must be called beds, and be classed among the sedimentary rocks. The irregularities in their extent, thickness, and the pres- ence of included masses of rock, known as horses, are phenomena common to the gneiss and them, and therefore these cannot serve as an argument for calling them veins. Lenticular masses of micaceo-homblendic gneiss, lying in feldspathic and quartzose beds, or the converse, are quite common, nor do the strata of these rocks run on unchanged in character. But they thin out or grow thicker, or change in mineral composition just as these veins are seen to pinch out or swell into thick shoots, or be replaced more or less gradually by rock. The similarity in these respects between these ore masses and the surrounding stratified rocks proves them to be beds and of contemporaneous origin. Imbedded in the gneissic strata of this highland belt or region, these iron-ore beds or veins (so called) have the same general strike or dip in common with them. The prevailing direc- tion of the first is towards the northeast, varying, however, within the quadrant from north to east. In most cases it is between the north and northeast. From these there are several exceptions, as at Oxford Furnace, where the veins run north 25° west ; the Connet mine, a few miles west of Morristown, where it is also northwest and southeast. While these lines of strike have a general straight bearing, they exhibit short irregularities and deflections, often varying from side to side, or zigzagged by faults or ofisets. The rocks of this formation, as observed in hundreds of places, show the same prevailing straight lines as are seen m the longer openings for ore. Bends or foldings are very rare. One of the most remarkable of these is on Mine Hill, Frank- lin, Sussex County, although this occurs in a zinc vein or bed, and not in iron ore. ' Here there is quite a sudden bend, so that the vein returns almost to its original course — ^which is the usual northeast and southwest one. In the iron mines of the State, the AVaterloo or Brookfleld mine, about five miles north of Hackettstown, in Warren County, shows a curving strike— turning from northeast and southwest to north and south. Further opening mav find as complete a bend here as is to be seen on Mine Hill. But the best ex- ample of such folding is at Durham, Pa., where the iron-ore vein, as followed in the mining operations, coincides in its course very nearly with the contour line of the Mine Hill, running around in a semicircle on the western side of this elevation. The dip of these ore-beds being at right angles to the line of strike has, of course, the same degree of uniformity in direction, and that is towards the southeast, or more generally towards the east-southeast. In some localities the strata are in a vertical position or inclined towards the northwest, and the dip is in that direction. But this has been observed in a few mines only, and in some of these, deeper working has THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 129 found the vein below assuming the prevailing southeast dip, indicating the existence of a fold, of which the vein opened is a segment, or a bending over near the surface caused by some powerful force acting subsequently to the elevating and folding agents. The Beach Glenn and Davenports' mines, in Morris County, offer illustrations of northwest dips. The rocls; outcrops show a number of such directions, but they are comparatively few in number, when the thousand or more observed southeast dips are considered. In the Connet mine (mentioned above) the dip is towards the southwest. At Durham it is radiating towards a central axial line of what is considered as a fold, and in, towards the centre of the hill. In the Hurd mine, as also at the zinc mine, Franlclin, the two legs of the synclinals show dips at differ- ent angles towards the southeast, one of these, at Hurdtown, being almost vertical, while the other is quite steep. In the large openings of the Ford and Scofield mines there is no dip, the beds standing vertical. The term pitch is used to designate the descent or inclination of the ore-bed or shoots of ore towards the northeast — or in line of strike. If we should conceive of the line of strike as broken and depressed so as to descend towards the northeast, we should get a good example of this pitch of shoot. This inclination has been observed in the rock as well as in the ore. It ia so com- monly observed in mining these magnetic ores as to be ex- pected everywhere, and miners speak of the ore pitching or shooting, and their working has constant reference to such a structure in both ore and inclosing rocks. In nearly all cases the pitch is towards the northeast. It is beautifully exhibited in the Cannon mine, at Ringwood, where it amounts to 45° inclination from a horizontal line. The long slope of the Hurd mine, in Morris County, and the thick swells alternating with intervening pinchers, or barren ground, at Mount Hope, show this same structural pheno- menon. These shoots of ore, however named, are best described as " irregular, lenticular masses of ore imbedded in the gneiss, their longest diameters coinciding with the strike and pitch of the rock," which in nearly all cases is towards the north- east, and their dip conforming to that of the same surround- ing rocky case, and generally at a hi^h angle towards the southeast. They vary greatly in their dimensions, some- times thinning out or pinching, when followed on the line of the strike, or on that of the dip, to a thin sheet or seam of ore and occasionally . ending wedge-like in rock. Sometimes they split up into several small vems or fingers which are dovetailed, as it were, in with the rock, and so gradually pinch out. Quite often there is a sort of flattened kernel or core of rock inclosed in the shoots of ore, but gen- erally these horses, or what are called such, are interpene- trating masses of rock from the outside country rock. Ex- tensive mining operations and explorations have shown some of these shoots to be connected with others, forming a series of these lenticular masses, or if not actually united by ore, associated and arranged on closely parallel planes, if not in the same axial plane. Following the plan e of the dip down- wards, the pinches between the shoots are nearly everywhere continuous sheets of ore, and these are not often greater in breath than the shoots. That is, the distance from shoot to shoot measured across the pinch is not often greater than the breadth of the former. But quite frequently these shoots are entirely separate from one another, rock intervening in the same plane, or they are in different planes or geological horizons. Nearly all of our New Jersey mines work on more than one shoot, since the extraction of the ore from near the surface ia easier and more economical than follow- ing a single shoot downwards. Their length is unknown. In the Hurd mine the slope is nearly 900 feet long descending on the bottom roch and there are no signs of exhaustion In the Weldon mine (near the Hurd mine) there are two shoots side by side, but not exactly parallel nearing each other as they pitch down, and now separated by about twelve feet of gneiss rock. These may come together and prove to be leaders from one large shoot. In most of our iron mines the ore is bounded by well defined walls or strata ot rock from which the ore comes off clean in mining but very frequently there isno such plain boundaries or sudden transitions from magnetite to gneiss, but a very _ gentle gradation of ore intS rock, and in these cases the mining goes only so far as the richness of the beds in iron makes it profitable to re- 9 move them. Following the shoots downwards, the same gradual replacement has been observed until the whole was too lean to work, or altogether free from ore ; but this feature is not so common as that of the gradation or deplacement towards the side of the shoots or the walls. Occasionally the shoot is said to run out, that is, there is a sudden change from ore to rock; some of these, however, may be faults rather than shoots changed into mineral composition. The thinning out of the shoots towards the edges, or at right angles to the line of pitch, or towards what may be csuled the lines of pinch, which run parallel to the lines of swell or axes of these shoots, has originated the terms cap-rock and bottom rock. The former makes the arched or double- pitched roof of the mine, while the latter constitutes the trough-like floor or bottom. These peculiar features are very finely exhibited in the Hurd mine, Hurdtown, Morris county, where the extraction of the ore, following the conformation of the shoot, has left the cap-rock overhead and the bottom rock below, on which the long slope runs down to the bottom of the mine. In the Cannon mine, at Ringwood, the same capping rock appears in the heading or northeast side of the large opening, and the track runs down on the bottom rock towards the northeast. Here the pitch is nearly twice as great as in the Hurd mine and the shoot as worked is much broader, being nearly of the same size both ways. And here there may be said to be four walls that surround the ore. Sometimes miners speak of these top and bottom rocks as walls. But generally there is a narrow vein or sheet of ore left both at the top and in the bottom; and these may gradually run out entirely, or they may connect with other shoots of ore lying in the same plane of dip as that 6f the shoot worked. And this is true in nearly every case ; the exceptions being considered as not yet fully demonstrated as such, since the mining operations generally cease when the vein pinches up so as to become unprofitable for the removal of its ore. The extent of these shoots of ore is exceedingly varying, and our mines are not yet deep enough to show their maxi- mum length. The width and thickness, or the lateral dimensions, are soon ascertained, the former scarcely ever exceeding one hundred feet, from cap to bottom rock, or from pinch to pinch ; and the latter varying from an inch to eighty feet ; but more often less than thirty — ^they may aver- age five to twenty feet These figures always include some rock, or horses. The oldest and deepest of our mines, as the Blue mine, at Ringwood, the Mount Hope, Swedes, Dicker- son, and Hurd mines, are all steadily going down, increasing the length of their slopes, and they are apparently as in- exhaustible as ever, and promise to continue so, at least as far as our present appliances for hoisting ore and water can allow of the economical extraction of ore from them Such are some of the more general and essential features that charac- terize the iron-ore beds of the state. Lying imbeded in, and being contemporaneous in origin with, the gneissoid rocks of this Azoic formation, these ore beds or veins have been subject to the same disturbing forces which have elevated, folded, wrinkled, and broken all the strata belonging to it, and which have given to it its present structure. These forces, so manifold and acting through so long a period of time, and probably at wide intervals, have so destroyed any degree of uniformity which once may have existed, that it is often difficult, and sometimes impossible, to recognize amidst this chaos any order of structure whatever. The beds of ore and rock have been squeezed into close folds, so that they now stand on edge, and through these agencies have come the strike and dip. Other forces acting on lines traversing the veins at all angles, have variously dislocated and further disturbed the strata, giving rise to frequent faulU or offsets, and what are called cross-slides — phenomena seen in both the veins and in the rock strata of this formation. In some instances the veins have been displaced one hundred feet while in others the ore-mass has been broken apart, but not pushed aside, so as to interrupt its course. The planes of these dislocations traversing the veins in all directions, the dip and strike are sometimes both altered. These faults are common, and can be seen in nearly all the mines ; sometimes so fi-equent a-s to cut the vein into short segments, giving it a zigzag course. The most remarkable faults or offsets are seen in the Mount Hope mines, where five veins are all dis- placed over a hundred feet ; in the Hurd mine, where the 130 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED SPATES. displacement has been in a vertical plane and the original long and continuous shoot appears as two distinct masses, the upper of which has been worked out. Other examples are in the Byram and the Mount Pleasant mines, near Dover. Generally a thin seam of ore mixed with rock connects the vein on corresponding sides of the fault, and this serves often as a guide to find the vein beyond the break or oftset. Miners have several so-called rules about offsets, but these are not universal, and there is no general law in the direc- tion of the throw or displacement. Occasionally one fault is crossed by another — increasing the irregularity in the course of the vein. From these numerous faultings, discovered in mining operations, we learn something of the extent to which these strata have been disturbed since their original deposition, and probably all subsequent to their elevation and com- pression into folds. More thorough surveys of the surface and more extended mining may yet enable the geologist and miner to trace out these lines of fracture, and learn how much they, together with the general effects of elevation and folding of the whole formation, have contributed towards the grouping of the iron-ore as we find it, and this knowledge may direct both our mining and our searches for ore. The facts already obtained point to a system, and the successful pursuit of the ore in its crooked and broken course in some of the largest mines is the best evidence of the accuracy of the laws of structure as now understood. They also show most forcibly, and illustrate most beautifully, the intimate and necessary relations of mining and the principles of geology, and show that the two ought never to be disassociated. — CompUed from a paper by J". C. Smock, Tranaactions American Institute Inatttute of Mining Engineers, THE SALISBURY (CONN.) IRON MINES AND WORKS. THE three principal mines from which the celebra- ted Salisbury iron ores are obtained are called respectively the "Old Hill," "Davis," and "Chat- field ore beds, and are situated in the town of Salis- bury, Litchfield County, Conn., on the eastern slope of the Tocconuc range of hills. The Old Hill Ore Bed is a tract of land of 100 acres, originally granted by the General Court in October, 1731, to be laid out by Daniel Bissell of Windsor. It was soon after surveyed and located by Ezekiel Ashley and John Pell. The descendants of Ashley are still proprietors in the mine. The supply of ore has been very abundant, and for many years was easily obtained, but latterly the cost of raising has been greatly increased. Up to about 1840 the average yield was estimated to be about 4500 tons per annum. The production has gradual ly increased until the average yield at present is estimated at 15,000 tons annually. The largest production in any one year was about 20,000 tons. The proprie- tors of this mine were incorporated many years ago under the style of " The Salisbury Ore Bed Proprietors." The Davis Ore Bed, named after an early owner, was originally called Hendricks Ore Bed, and was owned before the organi- zation of the town of Salisbury by Thomas Lamb, one of the first settlers in the town. Ore was mined in this bed as early as 1730 or 1731, and was taken by Lamb to supply his forge at Lime Rock. It was in early days transported in leathern ba^s on horses. This mine has been worked almost constantly since first opened, showing an increased produc- tion. The average yearly yield at present is estimated to be about 15,000 tons. The property has passed through several ownerships ; the proprietors are now incorporated under the name of Forbes Ore Bed Company. The Chatfield Ore Bed was originally owned by Philip' Chatfield, from whom it takes its name, and was opened soon after the other beds were. It has been steadily worked since first opened, show- ing also an increased production. Its annual yield at present is estimated to be 12,000 tons. Notwithstanding these mines have been so long and so constantly worked, the supply of ore is still abundant and apparently inexhaustible. There has been no special effort to increase the production, as these ores are not in the market, and it is only desired to raise a sufficient supply for the furnaces in the immediate vicinity of the mines. The ores are all of the brown hema- tite variety, and of the same general character, yielding about forty-five per cent, of iron. The process of raising the ore and making it ready for the furnaces has been much improved within the past twenty years ; it is crushed and washed by machinery before leaving the mines. The ore is raised entirely by open mining, and beds are now worked at a depth of from 75 to 100 feet. In addition to the mines mentioned above, the Barnum-Richardson Company is work- ing mines at Amenia and at Mount Riga, both on the New York and Harlem Railroad, just over the New York State line, and on the western slope of the Tocconuc Hills. These mines produce ores very similar in character and value to those already described. The first forge in this vicinity was erected in Lime Rock by Thomas Lamb, as early as 1734. He took his ore from the Hendricks (now Davis) Ore Bed. Several different parties succeeded to the ownership ; among those who occu- pied it longest, and operated it most successfully, were Messrs. Canfield & Robbins. They operated a forge and blast-furnace on this site for many years, and also had a forge and blast-furnace (built by Leman Bradley in 1812) on the Housatonic River, just below the Canaan Falls, using at both places Salisbury ores. The Lime Rock property came into possession of its present owner in 1863, and in 1864 a new blast furnace was erected, which has been in operation up to the present time. About the year 1748 a forge was erected in the present village of Lakeville (then called Fur- nace Village), and in 1762 John Haseltine, Samuel Forbes, and Ethan Allen purchased the property, and built a blast furnace. This is supposed to be the first blast furnace built in the State. This property in 1768 came into the possession of Richard Smith, of Boston, who, being a Loyalist, returned " to England upon the breaking out of the war. The State took possession of the works, and appointed Col. Joshua Porter their agent in its management, and upon orders of the Governor and Council large quantities of cannon, shot, and shell were made during the Revolutionary AVar for the General Government. John Jay and Gouverneur Morris were often there superintending the casting and proving of the guns, and at this lime the Salisbury iron gained a celeb- rity which it has never lost for superior strength and gene- ral quality. The cannon were intended chiefly for the navy, and after the war the navy, to a considerable extent, was supplied with guns from the same iron. The ship of Com- modore Truxton, the Constellation, and the celebrated Con- stitution, "Old Ironsides," were supplied with Salisbury cannon. The furnace was afterwards owned and operated for many years by Messrs. Holley & CoflSng, who also opera- ted a forge and furnace at Mount Riga. The forge on Mount Riga was built about the year 1781 by Abner or Peter Woodin. Daniel Ball succeeded, and the works were for many years known as Ball's Forge. Seth King and John Kel- sey commenced building a furnace thtre about 1806, but were not able to complete it, and in 1810 it came into possession of Messrs. Holley & Cofiing, who the same year finished it, and for many years carried on an extensive business. Pig iron, anchors, screws, and various kinds of manufactured iron were made there. These works and those at Lakeville were abandoned many years ago, and the property at Mount Riga, including the water privilege, which is very valuable and one of the finest in the State, is now owned by the Mil- lerton Iron Company, Irondale, N. Y. There were also built at East Canaan two blast furnaces for the manufacture of pig iron from Salisbury ores, one about 1S40 by Samuel Forbes, and one about 1S47, by John A. Beckley. The first foundry for the melting of pig iron was built at Lime Rock about the year 1830, and soon after came under control of Milo Barnura, who was the founder of the present Barnum-Richardson Company. He associated in the busi- ness Leonard Richardson, and within a few yeare his son, William H. Barnum, was taken into the partnership. The foundry business was carried on in a small way in connection with the store; their productions consisted chiefly of clock and sash weights, plow castings and other small work. The business gradually increased until about 1840, when they began the manufacture of railroad work, the first of which was chairs for the Boston & Albany Railroad, then building from Springfield to Albany; the castings were transported by teams to Springfield and to THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 131 Chatham, a distance of about fifty miles. The great tensile strength and natural chilling qualities of the Salisbury iron proved it of great value in the manufacture of cast chilled car-wheels, which naturally followed in a few years the making of smaller railroad castings. The iron early ob- tained, and has since held, the reputation of being the best known for this purpose. In 1858 the company obtained possession of the Beckley furnace at East Canaan, and in 1862 purchased the Forbes furnace at the same place. They also, about this time, purchased the foundry at 64 South Jefferson Street, Chicago, and organized a joint stock com- pany under the name of the Barnum-Richardson Manufac- turing Company, for the continuance of the foundry business. Jjj May, 1864, the Barnum-Richardson Company, a joint stgck company was organized with William H. Barnum as pr||iident and general manager. It has since largely in- cre^ed its works by building, and by acquiring further interests in mining and furnace companies. A third and improved furnace was built at East Canaan in 1872 ; in 1870 a second foundry was erected at Lime Rock. A new wheel foundry was built in Chicago in 1873. The foundries at Chicago use the Salisbury iron, and have a capacity in the two shops of 800 wheels per day. The company uses, at its Lime Rock works, Salisbury iron also, and have a capacity of 200 wheels per day. In 1840, there were in this vicinity four blast furnaces in operation, each using an average of 600 bushels of charcoal and producing three tons of pig iron per day. There are now seven blast furnaces owned by the company, of which William H. Bamum is president and general manager. They \ise each an average of 1200 bushels of charcoal, and produpe eleven tons of iron per day. The new furnace at East Canaan at its last blast made an average of eighty tons of iron per week, this being the most advantageous blast known to have been made in a charcoal furnace of this size. The seven furnaces are located within a radius of eight miles from Lime Rock, and are situated as follows: three at East Canaan, one at Lime Rock, one at Sharon Valley, one at Cornwall Bridge, and one at Huntsville. In connection with the latter fiirnace there is a car-wheel foundry at Jersey City, having a capacity of 150 wheels per day, arid using the iron exclusively from this furnace. The Salisbury pig iron shows an average tensile strength of about 30,000 lbs. to the square inch, and, besides being valu- able for ordnance and railroad purposes, it is extensively supplied for malleable and machinery uses. The wheels made sit the Barnum-Richardson Works have been largely used in the United States, Canada, and foreign countries, particiilarly in South America. The opening of the Con- necticut Western Railroad has brought these mines and fur- naces within easier access of each other, and has also enabled the fiirnace companies to procure a portion of their supply of charcoal from a distance, most of it being brought from Vermont. e.d from a paper by A. L. RoUey, C. E.. Tratwactims Americim JmtUtile of Mining Engineers. THE IRON ORE AND ANTHRACITE COAL OF RHODE ISLAND AND MASSACHUSETTS. THE existence of iron ore and anthracite coal in the neighborhood of Providence, R. I., has long been known, chiefly as a geological fact ; that these ma- terials, so near to each other and to tide-water, are of such a good quality and are present in such large quan- tity, as to have seriously raised the question of establishing blast furnaces there, was a surprising fact to me ; and 1 have thought that the few notes I have lately gathered on the subject would be of interest. The coalfield referred to has an area of above 400 square miles, and is found throughout the belt of transition rocks extending from Newport JN eck to Mansfield, Massachusetts. It underlies the cities ol Providence and Newport, and the towns of Middletown, Portsmouth, Jamestown, Warwick, Barrington, Cranston, North Providence, Cumberland, Bristol, Warren, East Providence in Rhode Island, and Seekonk, Attleboro, Wren- tham, and Mansfield, in Massachusetts. The amount of coal is not estimated, but very roughly stated at " hundreds of millions of tons" in a report of "The Rhode Island Society for the Encouragement of Domestic Industry." Professor Ridgway,'in a memorial to the General Assembly in 1868, states that the field is a large but shallow one, made up of a cluster of beautiful coal basins, being identical with the lower coal series of the anthracite basin of Pennsyl- vania. The coal on the edges of the field has been not only broken up, but altered, by heat and pressure, such as the Pennsylvania field seems to have escaped; but Professor Ridgway states that it is regular and undisturbed, and less altered, in other parts. Still later — in 1875 — a hole was sunk a little over 700 feet, at a point in Massachusetts some five miles from Providence, in the centre of the basin, and a bjed of coal nine feet thick was found at this depth. Its quality, judging from the core brought up, was superior to the coal previously worked. All this coal has a red ash, and burns with great freedom and with a fuller blaze than other anthracite. The ash is quite fusible, so that a moderate blast is required. Some time ago, Mr. Samuel L. Crocker, of the Taunton Copper Company, stated that, for about twelve years, he had used 10,000 tons annually of this coal from the Portsmouth mine, in various manufacturing estab- lishments and for domestic purposes, and that, for steam and all ordinary purposes, it was quite as good as Pennsylvania anthracite; while, for smelting copper ores, it was the best mineral fuel. More recently, the Taunton Copper Company have acquired this mine, and are now raising their own coal. The main shaft measures 1400 feet on the incline, and the gangways aggregate a length of 3J miles. Another mine at Cranston, from which some thousands of tons were formerly shipped, has recently been reopened with a capacity of 100 tons per day. Most of the workings have been on the outcrop, where, as before stated, the coal is broken and altered. But the alteration seems to have pretty well freed the coal from sulphur, and has also given it free-burning qualities. Prof. Jackson's analysis of the Portsmouth coal is as follows : ■Water and volatile matter Fixed carbon .... Ash of dark red color . . .10.00 .84.50 6.50 Prof. Shaler's analysis of Cranston coal (1876) is as fol- lows : Volatile matter expelled at red heat . Fixed carbon . . Ash Hygroscopic moisture Sulphur Specific gravity . . . . . a.M . . 82.26 . 6.65 . . . 8.55 100.00 . . . 0.026 .1.839 The magnetic iron ore deposit at Cumberland, three miles from Woonsocket, and twelve from Providence, is the most valuable in the State. The " Cumberland Iron Hill " is a mass of ore 500 feet long, 150 feet wide, and 104 feet high, and is estimated to contain over a million tons above natural drainage. Probably a very much larger quantity lies below ground. The ore is not rich in iron — it averages 85 per cent. — ^but it is extremely free from sulphur and phosphorus, the latter element, as lately determined at the Bethlehem Iron Works, being but 0.026 per cent. The Bethlehem analysis givps the iron in one specimen as 30.86 per cent., and in another at 33 per cent, and the silica as 25.5 per cent. Dr. Chilton's analysis is as follows : Per- and protoxide of iron . .... 58.50 Oxide of manganese ... .* 2.10 Oxide of titanium . . . 3.66 Alumina and silica . 26.33 Magnesia 6.80 Lime . . . 0.65 Water and loss . ... . . . 1.96 100.00 Metallic iron 42.68 132 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. Such an ore mined by open quarrying with natural drain- age, and almost on tidewater, would seem to be of some value for the steel manufacture. There are also hematite deposits, the largest being at Cranston, five miles from Providence. The analysis of this ore by Prof. Willis in 1870 is as follows : Volatile matter, . . Peroxide of iron . Protoxide of iron . Silica, Alumina, Sulphuric acid {0.047 sulptiur), . . Phosphoric acid (0.199 phosphorus). Peroxide of manganese, . . Lime, ... . . Magnesia, . Ltoss, . . . . . Metallic iron, Metallic iron in calcine J ore. 14.060 76.285 trace 4.810 2.100 o.ns 0.463 0.080 0.500 0.410 0.20O 90.938 63.40 63.G0 The manufacture of iron in Rhode Island is not exactly a new subject, since it commenced in 1703. Many cannon were cast here from these ores for use in the Revolutionary War and in the war of 1812. The charcoal iron manufacture closed in this State in 1834, when anthracite iron began to be introduced. The authorities of the time pronounced the iron of very superior quality. The Cumberland and Cranston ores were mixed in equal quantities. It has been estimated that pig iron can be produced in this region at less than $16 per ton, which is no doubt true, seeing that ore, coal and limestone are adjacent and easily mined, provided the coal turns out to be a good blast-fur- nace fuel. I do not learn that experiments have been made in this directfon. But whether iron is produced here or not there is already a largely growing development of coal mining, and it seems probable that ore of this quality, so near tidewater, may find a profitable market. ^■Compiled from a paper hy A' L. Holley, C. E., Transactions American In- stitute of Mining Engineers THE SILVER MINES OF NEWBURYPORT. THE first pit was opened in May, 1874. In August I made a visit to this j)it, which was six feet wide in the north-west direction, twelve feet long north, 80° east, and six feet deep. About four tons of galena carrying gray copper siderite, and quartz, had been taken from this pit. The lumps were all of them evidently float specimens and varied from eight to twelve inches in thick- ness and showed very distinct indications of crevice or vein structure; The indications at the bottom of this pit were such as to remove all questions of salting. Three specimens were assayed, with the following results : No. 1, a coarse- grained galena, very rich in lead, yielded $63.13 of silver per ton of 2240 lbs. No. 2 was a fine-grained galena, and seemed to represent the standard ore of the mine. This gave 50 per cent, of lead and $84.26 in silver per ton. No. 3 *as a nearly pure piece of gray copper not quite perfectly freed from quartz and galena ; this sample yielded $1422 in silver per ton, also $145.12 in gold, and 27 per cent, of copper. The first discovery of ore in in situ was made about October 10th, 1874, when a crevice filled with a deposit an inch thick of galena was discovered some 40 feet due north of the first pit. This had a strike of about north 80° east. 6 feet to the north of this and parallel to it a six-inch crevice of galena was discovered. The parties who were operating the deposit then went about 20 feet, hoping to find a wider vein. The ore deposit as here found had widened out to a thickness of three feet at ten below the sod, and at a distance of 22 feet below the surface of the galena vein measured six feet thick. A hole was drilled dry through this mass perpen- dicular to the plane of the vein, and the drillings saved thoroughly sampled, and assayed, yielding ' 62 per cent, load at 6 cti<. per lb., $69.84 per ton 2240 lbs 17-36 per cent, silver at $1.29 per oz. Troy, . 72.87 " " •■ OOIT per cent, gold at $20.60. per oz. Troy . 11.43 " << « ^ - - $164 14 This gives the gross value of a ton of the ore. A consid- able percentage will be lost in the working owing to the presence of antimony in the gray copper. Another valua- tion of the ore was made upon a larger scale at the In- stitute of Technology in Boston. A lump weighing 500 lbs. one foot thick was broken into three pieces, one of which, weighing 145 lbs., was treated. This when crushed and sorted by hand yielded 92 lbs. of smelting ore, i. e., a tol- erably rich galena, and one which would probably pass as No. 1 ore in most of the mining districts of the United States. While making ihe meltings a very considerable loss was experienced from tume. The yield was 30 lbs. of crude ingot lead or 746 lbs. to the ton of 2240 lbs. This crude lead after being refined with zinc, was again refined, and the rich portion cupelled. The lead was recovered from the cupel bottom, and there was obtained in actual marketable condition, 23 lbs. refined lead ; 436.32 grains of silver ; and 4.19 grains of gold. From this it appears that a ton of picked ore contains, in condition to be actually extracted and put in the market, as follows : 560 lbs. lead at 6 ots. per lb., . 22 oz. silver at $1.30 per oz., . . . . 101.8 grains gold at $20.60 per oz.. .$33.60 28 60 . 4.37 866.57 Also a ton of crude ingot lead as produced by smelting yields : 1710 lbs. lead at 6 cents per lb., . 74 oz. silver at $1.30, 341 grains gold at $J0.60 per oz.. . $102.60 . . 96.20 . 14.63 $213.43 It must be remembered that the losses in the above work are far greater than would actually take place where the ore was worked on a large scale and with experienced work- men. In reporting on the mine, the long ton, 2240 lbs., was used at the special request of the former owner. Dr. Kelley. The above figures are copied directly from that report. The Chipman shaft was sunk on the thick outcrop of galena just described. I am inclined to think that this mass was what is often known as a chimney of thickening up of the vein. A thickness of six feet of solid ore with a parting on each side has nowhere else been found in this mine. At a depth of 30 feet on the Chipman shaft a level 90 feet long has been driven to the southwest to the limit of the property. The ore has been stoped out up to the surface to a distance of 30 feet from the shaft, and I am told that the ore deposit was from 10 inches to 16 inches thick at all parts of the stoping ground of 30 feet square. The remaining portion of this 30 feet level which has not been stoped, i. e., the 60 feet lying beyond the first 30 feet from the shaft, now carries a very fine display of ore, there being along the roof of the level about 12 to 15 inches thick of solid ore. The vein at one point on this level has been faulted with a throw of about six feet to the northwest. The deposit appears to be unchanged in character beyond the fault. At a depth be- tween 60 and 60 feet below the surface of the vein, which so far has been vertical, leaves the shaft with a decided dip to the southeast. A level has been driven in a southerly di- rection at 100 feet depth, but when I last heard from the mine this level had not yet reached the vein though it was 20 feet from the shaft. Some gray copper, however, was beginning to appear at the end of this level, and a carefully selected and cleaned specimen of this was essayed at the Institute of Technology, and yielded as a mean of five 12.186 per cent, silver, or $4583.93 per ton of 200O lbs. .004 per cent, gold, or $20.69 per ton of 2000 lbs. The Chipman Mine is well equiped with a well-lined shaft; a fine hoisting engine, cage, cars, and pump, all of which have been put in by the superintendent, Mr. 0. G. Paterson. In September, 1S75, the mine was yielding regularly about IJ tons of No. 1 ore, and 2 tons of No. 2 ore, and about 3 tons of No. 3 ore per day. No. 1 is fine smelting ore; No. 2 is a low grade of smelting ore ; No. 3 reqiiires crushing and wash- ing. No. 1 ore, I am told, will sell outright ibr $100 per ton in New York. The Boynton shaft lies about 150 feet from the Chipman shaft in a direction south 80° west. Th6 i(t6rk THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 133 of prospecting has not been carried on so extensively nor systematically here as in the Chipman Mine. The shaft ap- parently follows down the same ore streak, though it is not quite so thick on the average as in the Chipman Mine. I have visited a number of other openings, but have nowhere else seen an indication strong enough to give any great hope of the discovery of a mine. In many places the rusty streak of yellow ochre is followed with as much enthusiasm as in California, but it does not seem to be the fashion to pan this yellow dirt ; this may, perhaps, be due to the fact that when it is panned it does not yield the color of gold which the California pay dirt does. The diamond drill has been used in the vicinity of Newburyport to some extent for prospect- ing. It seems a little odd that it should have been chosen for this purpose. A vertical hole is scarcely adapted to prospect among vertical veins which are liable at any mo- ment to swerve away from the drill-core. A furnace has been erected in the vicinity of the Chipman Mine. This furnace is built on a slope of about 30°, and is intended to be continuous in its action, receiving the ore at the top of the slope, roasting it on the slope, and smelting with reduc- tion to lea;d at the foot of the slope. — Oorrvpiled from a paper by R. B. Richardson, S. B., TransaclioTis ATnerican Institute of mining Engineers. THE ROCK FORMATIONS OF MAINE. UNFORTUNATELY but little is known of the geo- logical ages of the rocks of the greater part of Maine. There are thousands of square miles in the northern part of the State that are as yet wholly unexplored. Undoubtedly the rocks of the north- western portion of the State are Laurentian in character. Of the explored and settled portions, we have of the Palaeozoic age, the lower Silurian, the upper Silurian and the Devonian. No positive evidence has been afforded us of the existence of any part of the Carboniferous system. Many of our rocks have been referred to the Cambrian or Huronian system. Our rocks have hitherto received so little attention from geologists that there is necessarily a great deal of uncertainty regarding the true classification of them. The coast line from Grand Manan to the Isle of Shoals, although but three hundred miles in a straight line, owing to the numerous indentures, islands, capes, bays and • rivers, actually measures more than twenty-five hundred miles of exposed rocks, affording magnificent and almost unlimited facilities for the examination of their formations. It is doubtful if anywhere in the known world is exhibited such a variety of rocks. Prominent among them may be seen granites of all grades and varieties, gneiss, sienite, protogine, porphyry, eurite, felsite, quartz, conglomerates, limestones, serpentine, steatite, hornstone, Jasper, trap of all kinds, mica, hornblende, talcose; and argillaceous schists; clay and calciferous slates; pyritiferous and plumbaginous schists; fossiliferous and sandstone rocks. Many of the rocks on the coast of Maine are metalliferous; those of Hancock county especially. Another feature exceptionally prominent in Hancock county, and contiguous to the mmes, is the great number of trapdykes and veins. Deer Isle, Sedgwick, Mount Desert, Sullivan and Gouldsboro, present numerous examples of these traps ; also in Hampden, Han- cock, Ellsworth, Blue Hill, Long Island, Machias, Lubec, Dexter and many other places. Much of the trap is por- phyritic, more especially at Sedgwick, Deer Isle and Brooks- ville. That these trap-dykes and veins have some intimate connection with, or relation to, the ore veins about Hancock county is apparent from the fact that they are much more numerous in the vicinity of ore-bearing lodes. There is a very striking resemblance between the Maine metal-bearing belts and those of the Old World; and in reading de- scriptions of those of Cornwall, Wales, Derbyshire, North Germany and Spain, one cannot but notice the similarity The rocks of Mainemore nearly resemble those ot the Old World than they do those of the Pacific coast. Mineral veins and beds in each separate portion of the earth certainly appear to follow one another in nearly the same relative order as to age, in so far as they are the gradual result of similar geological events. There can be no doubt that all true ore beds were originally formed by mechanical or chemical precipitation from water. Their conditions may have been much changed afterwards by the action of chemi- cal or heat agencies. They exhibit certain lines of polarity. Magnetism or electricity seems to have something to do with the formation of ore veins, but exactly how or in what manner we are unable to determine at the present day. It has been asserted that ore veins are more commonly found in mountainous regions than in plains ; that they ap- pear to be more frequent in the older rocks and formations than in the very recent ones. Hence it would appear that Maine is particularly well adapted to bear valuable deposits of ores. That the north and northwestern portions of the State are very much broken, and present an appearance alto- gether different from that of the south-western and eastern portions is true. This difference in appearance is easily ac- counted for by the fact that the northern portions of the State, being much more elevated, escaped the action of the drift matter which must have swept along the coast with great power, denuding and wearing down the surface, filling up valleys and ravines, and leaving comparatively a level track. We have positive evidence that this was the case in the fact that the surface of the denuded rocks shows numerous strife or drift marks. If the surface of the rocks of the coast was laid bare, they would all present a polished or striated appearance. The discoveries of minerals and ores seem to have been confined principally to the coast line. No particular exploration has been made of the more northerly or mountainous regions. It is not anticipated that any rich discoveries of silver ores will be made in that section ; if anything, gold will be discovered. Of the mining belts thus far explored in Maine, the more prominent ones are the Lubec and Trescott belts ; the Gouldsboro and Sul- livan, Sedgwick and Deer Isle belt ; the Blue Hill copper belt; the Dexter, Corinna and St. Albans belt; and the Acton, Newfield and Parsonsfield belt. The Lubec Mining' Belt. — This has been the longest known of any in the State. Explorations for lead were commenced here many years ago, and considerable work has been done at different times, which has resulted in the development of a number of veins of argentiferous galenas. Considerable ore has been shipped from these mines at various times, and the result has been satisfactory. Several shafts and a number of drifts have been opened and a great deal of money has been expended, mostly (if reports are true), under a misguided management, the greater part having been devoted to expensive machinery and buildings. There is no question but these properties are valuable. Recent examinations by a prominent expert have shown this to be a fact. The mineral belt of which the Lubec mines are but a part, undoubtedly extends through Campo- bello Island, Lubec and Trescott. Numerous veins of galena have been found in Trescott, one of which is exceedingly pro- mising. The rocks which appear upon this belt are argillace- ous and calcareous slates. Trap dykes are exceedingly nume- rous ; some of them are composed of green stone, "others are porphyritic. Calcite is quite frequent and forms part of the gangu'e of the veins. Few impressions of shells are found, probably the same as those of Perry. The ore consists of lead, zinc and copper, on the surface. The galena is argentiferous, carrying silver in the proportion of from twenty to ninety ounces to the ton. Below seventy-five feet in 3epth, the ores rapidly change, becoming much softer, containing more lead and silver, and less zinc and copper. This belt probably extends up through St. George in New Brunswick. Several veins of ore have been opened in that section, the character of which is precisely similar to those of Lubec. Magnificent specimens of copper pyrites have been shown from Campobello Island, assaying twenty-four per cent, of metallic copper. This whole region is un- doubtedly very rich in metallic deposits. The G-ouldsboro and Sullivan Mining Belt. — Coming west from Lubec to Gouldsboro one will cross a number of metalliferous belts, most of them, however, un- explored as yet. The above named belt or district has been 134 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. quite extensively prospected, resulting in the opening of a number of good mines. It extends from Gouldsboro through the towns of Sullivan and Hancock to Franklin, in a north- westerly direction some twenty miles or more. The Cherry- field district should not be omitted in mentioning these metalliferous belts. It is probably somewhat similar to the Gouldsboro. The country rocks are syenites, quartzites and schists. Several exceedingly long and broad bands of quartz extend through the towns of Cherryfield and Harring- ton. A little free gold is occasionally found in this quartz, but not in sufficient quantity, probably, to pay for working. At Gouldsboro there have been discovered some exceed- ingly large and well defined veins of galena, on which are located the Gouldsboro and Home, also the Soule and Gup- till silver mining companies. These mines are very pro- ductive and rich. The Gouldsboro is the oldest, and con- sequently much farther advanced than the others. The ore taken from this mine consists of a mixture of galena, zinc, copper and iron pyrites, with occasional specks of gray cop- per. The ore runs from ten to four hundred ounces in silver to the ton. Some of the galena concentrates which I have assayed, run four hundred and eight ounces to the ton. The gangue of the ore vein is quartz ; the wall of the rocks are formed of a peculiar kind of material composed of horn- blende, quartz and lime. The Home mine produces ex- ceedingly massive galena, carrying from forty to sixty ounces of silver. The vein is of great width and length. The gangue and the wall rock are similar to the Gouldsboro. One peculiarity of the country rock in the vicinity of these mines, is that it all contains lime. At the Soule and Gup- till mine are found distinct veins of calcspar ; this is con- sidered a good indication for the whole district. Coming west from the Gouldsboro mines the rqck changes into a slaty quartzite. At Sullivan it comes into contact with granite on the north. Along the shore of the Sullivan river, and running nearly parallel with it, is located the fa- mous Sullivan lode. The course of the vein is from north- west to south-east. The strike being the same as the coun- try rock, it dips towards the granite and will probably come in contact with it, inside of the depth of one thousand feet. This vein was discovered by Mr. Messer, in May, 1877. It crops out along the shore of the river, showing eight or ten inches of quartz, containing silver-sulphuret, galena, and iron pyrites. Mr. Frances Worcester caused a shaft to be sunk some eight or ten feet, and strange to say, he encoun- tered specimens of native silver in the form of threads and flakes. Specimens of these were forwarded to the State Assayer. Having never seen any thing of the kind from the State before, he was exceedingly astonished and could not believe it,until he visited the mine and made a personal ex- amination. The following spring a company was formed composed of Boston men, who commenced work at once, and has proceeded uninteruptedly ever since. The discovery of the Sullivan lode marks an era in the history of mining in Maine, and deserves special mention. The Sullivan Company, although laughed at by many, and encouraged by none, except two or three experts who ex- amined the property, with commendable energy, enterprise and perseverance, pushed their work forward until they haveactually proved, despite all opposition, that the lode or vein is one of exceeding great richness. The success attend- ing the working of this mine was unquestionably the cause of starting all other mines in this and adjoining districts. On the Sullivan vein proper, are located the Wankeag, Sullivan, Pine Tree and Milton mining companies. Further up the river, on the Hancock side, on the same range, are located the Robert Emmet and Hancock silver mining companies. These mines, although probably not located on any part of the Sullivan vein, are within the Sullivan belt. The Robert Emmet and Hancock mines both produce ores which carry considerable gold and some copper, while that _ of the Sullivan vein contains but little of either. Coming back again to the Sullivan side, we have the Ash- ley, Milbrook and Tugvvassa mines, located below and a lit- tle to the eastward of the Sullivan veins. The Ashley and Millbrook are both located on what is claimed to be a broken or dislocated portion of the Sullivan vein, which, if the claim be not true, must have some close relationship to it, since the ore taken from the Millbrook at the depth of ninety feet, is of the same character as that of the Sullivan vein proper. There has been considerable disturbance of some portions -of the Sullivan lode by the intrusion of trap dykes and porphyry, which may have caused a deflection or splitting up of the vein. The country rock in which the Sullivan vein is found, is a slaty quartzite, somewhat tal- cose, and in some places calcareous and occasionally por- phyritic. At the Milton mine, the rock somewhat resem- bles the Comstock, porphyry being distinctly calciferous. A brief description of some of the characteristic features of the Sullivan mine will answer ibr all the others on or near this lode. The Sullivan company have one shaft one hun- dred and ninety feet in depth, following the dip of the ore vein, in which can be seen the ore vein, gradually widening from ten inches at the top to nine feet at the bottom of the shaft. ' Both the walls, foot and hanging, are clearly defined, and are separated from the slate by a distinct seam of clay nearly two inches in thickness. The vein matter is made up of alternate layers of different grades and varieties of ores, some of the streaks being exceedingly rich in silver compounds. The predominating ore is a black sulphuret of silver. Splendid specimens of native silver may be obtain- ed ; also argentite, stromeyerite, pyrargyrite, stephanite, and cerargyrite. In fact, almost every ore of silver is represent- ed in this mine. The proportion of lead in the ore is very small. There is considerable iron, some arsenic and a little zinc. A fair average of the first-class ore from this mine will be about one hundred ounces. All the mines in this section are provided with first-class steam machinery. Many discoveries of ore have been made on all the adjacent and surrounding lands about Sullivan. Mount Desert, Hancock Neck, Iron Bound Island, Little Duck Island, Petit Manan Point and many other places have all contribu- ted their share of new discoveries. At Petit Manan Point is located the Petit Manan Mining Company. On the east- ern side of Hancock Neck is located the Grant Mining Coinpany. The Blue Hill Copper Belt. — Proceeding west from the Sullivan belt twenty-two miles, we come to the justly celebrated Blue Hill copper belt. Blue Hill is situated at the head of Blue Hill Bay, in the county of Hancock, and is of easy access by rail or steamer from any direction. This copper belt is about four miles long and one-half mile wide. It is entirely a distinct belt of itself, and has no resemblance to the adjoining parallel belts. It will be seen from the fol- lowing description that it resembles the copper belts of Falun, Sweden, also the Carpathian belts, and the Chilian deposits. The copper belt proper undoubtedly belongs to the Huronian series. Blue Hill mountain is composed of coarse, eruptive granite ; the same may also be found both sides of the belt, and even in some instances breaking through the gneiss and quartzite which form the larger part, of the country rock of the metalliferous section of this belt. The richest copper ore seems to be confined toa soft granu- lar quartzite. The whole belt is pyritiferous, even to the extreme boundary lines. The whole deposit is clearly stratified, and appears to be an immense fissure vein, the whole mass of which is impregnated with cupriferous ores, and in fact it bears a great resemblance to, and is almost identical with, many of the great copper belts of the world, and as might be expected, indeed as has already been proved, is of almost uniform richness throughout the whole length. The strike of the rock is almost east and west ; the dip varies greatly, mostly inclining, however, to the south. The ores lie in parallel alternate bands, in width varying from one inch to many feet. These, according to well known laws that have application to beds or deposits of this nature, must continue to yield ore to great depths. There are no faults or cross veins. No possibility can exist of losing or exhausting the ore strata in depth. A portion of one of the richest bands uncovered two hundred feet wide, on the property of the Douglass copper mining company, present the following characteristics, which will apply equally well to all the others. Commencing on the south- ern side, is found a thin band containing galena and zinc blende, some of the former being exceedingly rich in silver. A thin clay selvage separates the galena from a granular quartz band of rich purple copper, often containing black oxide and native copper. Then comes a rich band of yellow copper pyrites ; next a wide band of "mundio ;" next alter- THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 135 nating strata of yellow pyrites and " mundic," with thin seams of purple ore, until it verges into the gneiss on the northern side. Ores can be taken out in large quantities, ranging from two to thirty per cent. ; a fair average of the larger portion would be twelve per cent. The following named ores may be found at this place : Red copper oxide (quite common) ; chalcocite, or copper glance (occasionally); bornite, often called erubescite; purple copper and peacock ore (very common) ; chalcopyrite, or yellow pyrites (predominates) ; tennantite (rarely) ; tetra- hedrite, or gray copper (occasionally) ; malachite (in small nodules) ; azurite (rarely) ; chrysocolla (rarely) ; pyrrhotite (common) ; mispickel (frequently) ; molybdenite (occasion- ally) ; galenite, stibnite and zinc blende (quite common). The Blue Hill copper belt presents many advantages, amongst which may be mentioned : first, its nearness to tide ■frater, less than two miles. Ores may be landed in Baltimore or New York, from the wharf, at a price not exceeding two dollars per ton for shipment. Second, the facilities for raising the ore, no deep shafts being required, as it can be, and is worked from the surface ; hence, no great amount of capital is necessary in developing. Third, the fine quality of the ore, the large quantity, and the ease in dressing and making it ready for the market. The smelters who have received the ore shipped from this region are greatly pleased with the way it Works, the ore being one of great purity, containing no admixture of arsenic, lime, magnesia, or any- thing of the sort that will in any way interfere with the process of smelting. It is a simple mixture of quartz with the sulphurets of iron and copper, and makes a most excel- lent flux for reducing other more refractory ores. A fair average of the constituent parts is presented by the following analysis, made from ore taken from one of the mines : Copper, . Silica, Iron, . Sulphur, Zinc, : . . 10.34 per cent. 34.60 " " . 23.28 " . 31.78 " 10 " ICO It also contained gold at the rate of five pennyweights, and silver five and one-half ounces to the ton. These mines are under able and efBcient management. All the modern and improved steam machinery is brought into requisition to assist in the working of them. Plenty of manganese is found in this vicinity, and the whole region seems to be un- usually prolific in minerals and ores. All the mmmg and geological experts who have examined this belt, are una- nimous in their reports of the value of the mines. The Sedgwick and Deer Isle Belt.— Passing south from the Blue Hill copper belt, we cross a series of slaty rocks bearing some quartz and somewhat metalliferous Reaching the coast line, the rocks become porphyritic, and are penetrated by numerous trap-dykes. In the town of Sedgwick, on what is termed Byard's Point, is found one large silver-bearing vein and several smaller ones ; on the large vein is located the Edgemoggin company. At the depth of sixty-five feet, native silver was found, and the ore pos- sesses many characteristics of the Sullivan ore TheTeinis very strong and well defined. The hanging wall is as smooth as a marble floor, and is within five degrees of the vertical. Deer Isle is exactly opposite Byard's Point. Here there have been discovered a number of veins, some ot whicH look exceedingly well. The Deer Isle silver mining^ compa- ny is located on a very strong vein near Dunham s Point Their exploitations show a sulphuret ore vein, composed ot heavv spar, calcite, fluor-spar, and quartz, carrying sulphur- ets of lead zinc, iron, silver, and copper. The formation belongs to the same as that of the Edgemoggin mine Ser- pentine, asbestos, jasper, quartz, apatite and several other rarer minerals are found in close proximity to the Deer Isle mine. The Isle of Haut and Vinal Haven probably should both be included in the Sedgwick and Deer Isle belt. Both these islands are prolific in ores. At Vmal Haven nickelit- erous pyrites is found in great abundance. Should nickel ever again become in great demand in this country, here is a deposit of unlimited extent that can be worked mexpen- sivdy, and would probably be a source ^f }^rgerjenue There are dozens of smaller islands in the vicinity of Vinal Haven, from which many discoveries have been reported The Metalliferous Slate Belt of Penobsoot and Piscataquis Counties. — This enormous slate belt is me- talliferous in many places. It takes in nearly the whole of Penobscot and Piscataquis counties. It is very irregular in shape, being about seventy miles wide in the broadest part and is over one hundred and twenty miles in length. If a line be drawn from the lower partof Moosehcad Lake down to New Portland ; thence through Anson and Norridgewock to Waterville and Winslow ; from there in a direct line to the north part of Bucksport ; thence along the north-west- ern part of Washington county to Princeton ; thence across the Patten by the Twin Lakes in a direct line to the foot of Moosehead Lake ; forming a section in the centre of the state, the outlines of which are very similar in figure to that of the state itself. Much of the slate of this area is of the clay variety, valuable in some portions as a roofing slate and Worked as such. In the north-eastern part it is often more properly a fine-grained sandstone, associated with layers of clay slate. It is, also, in some parts slightly micaceous and often containslime. Occasionally granite penetrates through the slate. Trap, greenstone, and quartz veins are frequent. Two sections of this slate belt are certainly metalliferous ; possibly the whole of it may be. The eastern metalliferous part extends from Hampden and Carmel, up through Low- ell, Passadumkeag, Enfield, Howland, and certainly as far north as Lee. The characteristics of this eastern metallif- erous bearing belt may be summed up as follows. The veins occur in green-stone or an epidotic variety of quartz, mixed with occasional bunches of calcspar. The ore on the sur- face is always arsenical and antimonial. The ore is sparse but very rich, gray copper being always associated with it. Several mines are being operated on this belt, notably among them the Hampden, Harrington and McKusick. The Hamp- den mine has a shaft down on one of the green-stone veins from which specimens have been taken assaying over seven hundred dollars to the ton. The western metalliferous sec- tion of this great slate belt extends through the towns (com- mencing at the southern limit) of Newport, Corinna, and St. Albans, and probably as far west as Athens, also north- erly through Dexter, Garland, and Parkman, to Guilford. The slate through this section is somewhat talcose, occa.sion- ally micaceous. The ore veins through this region are very pockety. Large boulders of galena are found in various places, especially in the towns of Dexter, Corinna, and St. Albans, where many prospecting shafts have been sunk. The galena is remarkably fine, and carries silver in fair pro- portions. It contains a slight admixture of antimony, and has a peculiar appearance that easily distinguishes it from galenas from other portions of the State. The slate is very friable and easy decomposed. Much of the quartz was orig- inally heavily charged with arsenical sulphurets ; this has decomposed on the surface, and considerable gold is found amongst the quartz that has probably been set free from this decomposition. It has been claimed that nuggets of free gold and also of silver have been found in Corinna and St. Albans. Several mines are now in operation in Dexter, Corinna, and St. Albans. So much float ore is indicative of good veins somewhere. The Acton Mining Belt.— Leaving the St. Albans and Corinna belt, and passing south-westerly, we cross wide bands of ancient gneiss and granites, all so far as known, non-metalliferous. Proceeding west of Acton, in the coun- ty of York, we encounter another metalliferous belt, very narrow, but of considerable length, which we denominate the Acton mineral belt. This is from two to four miles in width, and probably about twenty miles in length. The formation is regular, and consists of shally mica schists and slates, enclosed on each side by irregular patches of granite, and also capped by the same on the hills. The explored part, where the mines are situated, is in the towns of Acton and Lebanon, some three or four miles from East Lebanon station, on the Portland & Rochester railroad. The strike of the rock is southeast-south ten degrees, and the dip thirty -two degrees towards the south-west. Numerous parallel bands or veins of quartz, many of them metalli- ferous, run through the belt. The uniformity of the strike and dip is something remarkable. Scarcely a break or dis- location occurs within the minBral portion of the belt. The ore veins first show themselves at the edge of a marsh, at the upper end of the belt. Here they divide and run parallel 136 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. about seventy feet apart, the entire length of the belt, crop- ping out occasionally along the first mile and a half of the belt, but finally becoming lost in the drift and soil at the lower end. Numerous cross-cuts and prospecting shafts have been put down along on the veins, and in no case has the thickness of the quartz been found to be less than four feet, and in every case more or less ore is present. Narrow veins of trap run along the eastern side of both these veins, and commonly form the foot walls. The ores consist mainly of argentiferous galenas, both fine and coarse grained ; some zinc, arsenical iron and copper are also present in the sur- face ores, but not to any great extent. One notable fact is that the arsenical iron is argentiferous, often containing silver in the proportion of twenty ounces to the ton. In some places in the veins are found decomposed ores, oxides and carbonates of lead. These run in some cases very high in silver. The gangue of the ore is pure quartz ; there is no admixture whatever of any lime or alumina minerals. This is a great advantage in concentrating the ores, since it rend- ers the operation one of great simplicity. Almost any good form of jig, buddle or table, after the ores are crushed and screened, will answer for concentrating, and the product cannot fail to be very rich, and will command a high price in the market. The surface ores from the Acton veins run from twenty to one hundred and twenty-five dollars to the ton. Several companies have been formed for working these veins. The Acton silver mining company have a valuable section of land, through w^hich both ot the veins pass. Ad- joining the Acton silver mining company on the south, is the Silver Wave mining company. The ore vein shows here a thickness of some twelve feet. The future of this mining section is very promising. The fact that so much good ore lies on the surface and the many advantages surrounding the working of the same seem to indicate that the working of these mines may be made to pay from the start. The Wakefield and Parsonsfield Belt.— The State of Maine can lay claim to but half of this belt, as it passes in a south-easterly direction down into New Hampshire. This is eminently a quartz and gneissic belt. Immense -veins of quartz crop out from East Wakefield, clear up through to Woodstock and Milton Plantation in Oxford county ; pos- sibly it may extend much further. The croppings are con- fined more particularly to the elevated portions, the hills and mountains. The quartz carries considerable gold in some places ; it occurs very irregularly, however. There are also many veins of argentiferous galenas. The Lone Star mine in Milton Plantation is located on one of these. The Mineral Hill mining company is located on another at Ea»t Wakefield, just across the State line. The exploitations of the last named company reveal a true fissure vein. Consider- able depth will have to be attained by the mines, on these quartz veins, before fine ore will be reached, owing to the nigh elevation of the country rock which carries the veins. This mining belt is either quite wide, or else there is a series of these elevated quartz veins, since ores of the same de- scription have been found in nearly all of the towns sur- rounding Wakefield, also at Gilead, Newry, Andover, and Phillips. The Gold Fields of Maine. — For years reports have come to us of the existence of Gold in the north-western part of the State. Hunters and men engaged in lumbering in the vicinity of the Eangely lakes have brought to us numerous samples of gold dust and nuggets. One hunter has for years, in his semi-annual visits to Portland to dis- pose of his fur, brought with him from one to four ounces of clean gold, which he reports has gathered on the streams running into the Eangely lakes. Quartz has also been brought us from the same locality, containing free gold. This quartz must have been broken from the ledges ; conse- quently there is a strong possibility, not to say probability, that gold exists there in situ. Gold has also been washed from the black sand found in Sandy river, running through Philips, Madrid, and New Sharon, also from Carritunk stream. Dead river. Seven Mile brook, and many of the small tributaries near the head waters of the Kennebec. Gold has been found in the quartz at Bingham, Moscow, and New Portland in Somerset county. It is also reported from many of the ranges between the Eangely and Moose- head lakes. As near as we can ascertain from a careful ar- rangement of all the facts in connection with the gold dis- coveries of these sections, there must be gold in the quartz on the west side of the Eangely lakes. This quartz proba- bly follows the range of mountains, including Mt. Abram and Mt. Biglow, through to the foot of Moosehead lake. The valley of the Chaudiere (in Canada), has been very productive in alluvial gold for many years. At one time, it was thought that the Sandy Eiver gold was a part of the washings from the Chaudiere, but this is not true. The range of mountains previously referred to would have most efTectually cut ofi" the sources of supply from the Chaudiere to the Sandy river valley. The gold found on the Sandy river and contiguous streams, , owes its parentage to the quartz rock west of the Eangely lakes. The rocks of ttis region are mostly azoic, and contain numerous veins of quartz. No explorations or exploitations of any conse- quence have ever been made in these regions. The gold coming from the vicinity of the Eangeley lakes is very fine and pure. The quartz is very similar to that which yields the gold in the southern States. Another gold region probably exists in the north-eastern part of the State, in the region of the head waters of the St. John river. The rock there is talcose schist, similar to the gold bearing schists of New Hampshire and Canada. This is a region, however, of which we possess but little know- ledge, and that derived from sources that may be unreliable. Free gold has been found in small quantities in many of the towns of Maine ; it has been found in Baileyville and Barine, near the New Brunswick line in Washington county ; also in Cherryfield, Columbia and Harrington, towns in the same county. Small specimens have been found in Pittston, Corinna and St. Albans. In York county at Saco (in the slate quarry), and also at Waterboro. Some of the silver ores in the State are aui-iferous, notably those found at Blue Hill and Hampden. Nearly all of the arsenical, copper, and iron pyrites of the State are auriferous, but they do not con- tain gold in sufiicient quantity to render the extraction of it alone profitable. It may, however, be worked to advantage in ores containing other metals, where the saving of the gold would be but an accessory part of the operation. In pro- specting for gold, there is one fact which should be kept in mind, that auriferous ore does not always contain gold coM'se enough to be visible to the naked eye. Fully two-thirds of all the gold quartz that is now worked, contains gold in such a fine state of division that it is wholly undiscernible to the eye, even when assisted by a powerful lens ; hence, in pro- specting for gold, simple panning or examination by a lens is not sufficient. Chemical tests should always be brought into requisition before the case is decided. Other Minerals and Metals found in Maine. — The mineral wealth of Maine does not consist alone in her mines of gold, silver, and copper. There are other metals and minerals which, if not valuable in the same sense as these, are quite as valuable in their way as economic productions. The demands now made upon science to produce from the minerals of the earth materials which are to be used in the arts and consumed in the daily routine of commercial trans- actions are unlimited. Should this daily production cease, even for a moment, the wheels of business would cease to revolve. Nature's laboratory, ample as it is, can but keep pace with the steady and growing demands upon it. For years the granites, the slates, and the limestones of Maine have been quarried and sent to every part of the known world. Some of the most magnificent works of modern engineering attribute their strength and durability to the beautiful and time-enduring granite of Maine. Thousands of fine dwellings and magnificent blocks are protected from the elements by the slates drawn from the inexhaustible quarries of Maine ; while the inside walls are covered with mortar made from the best lime rock in existence, which also came from the State of Maine. Glazing for pottery ware is made from Maine feldspar; sandpaper is made from the crushed quartz of Maine ; iron and steel are refined by the use of Maine manganese ; the good housewife polishes her culinary utensils with polishing powder made from Maine tripoli, and buildings are protected by the use of mineral paints made from Maine decomposed iron ores. One other subject remains to be spoken of, that is the manufacture of sulphur and sulphuric acid from the iron pyrites, of which Maine has. almost ihexhaustable beds. THE MINES, MINERS AND MINING INTERESTS OE THE UNITED STATES. 137 This is an industry that has long been established in France. Germany, and England, all of their sulphuric acid being now produced from the combustion of iron pyrites. We are at this very moment importing sulphur and saltpetre to make our sulphuric acid, when we have a ready and conveni- ent supply of the necessary materials almost at our very door. Maine, with her immense beds of these pyrites, might produce sulphuric acid to supply the demands of the whole United States. Most of these pyrites are cupriferous, and manufacture of salts of copper metal might be profitably carried on in connection with that of sulphuric acid. Alums can be manufactured from Maine shales. The State has good horn-stone that might be manufactured into scythe-stones and whet-stones. Emery is found in many parts of the state suitable for cutting and polishing steel. Tin has been found in many localities of the State. We have good reason to believe that it may yet be found in profitable quantities. The Blue Hill region is especially adapted for it. Zinc ores occuf in abundance associated with the ores of lead, and will be profitable as a by-product. Arsenic might be made in large quantities from the immense deposits of arsenical iron which exist thereabouts. Antimony also occurs ; there is a very large deposit of it at Vanceboro, which has been worked to some extent. The region round about Gardiner, on the Kennebec, promises well for Graph- ites, and many fine specimens have been shown from that locality. Many people still persist in their determination that coal must exist in Maine in quantity. Near and about the mouth of the Kennebec river are found small, thin seams of pyriteriferous, bituminous coal ; these veins have no ex- tent, neither do they lead to any deposits of value. Iron, nickel, and cobalt exist in almost unlimited quantities. Splendid mica, sufficiently large for industrial purposes, is found in the ancient gneiss which forms part of the rock formation of the State. In fact the mineral resources of Maine include about all of the earthy productions. Maine is also rich in the precious gems ; tourmaline, emeralds, and garnets have been found, many of which have been cut and polished, and found purchasers in the market for precious stones. Ore Veins. — It is a well known fact, and an allusion to it may perhaps be unnecessary, that surface ores from nearly all mines of the globe are refractory and compound mixtures of the various chemical elements, the base metals largely predominating over the more precious. It is ex- pected, and is, indeed, usually found to be true that on going down to the lower depths the base metals give way to the more precious ones. Not only has experience demon- strated this, but the theory now accepted by scientific men of the mineralization of ore veins is chiefly in accordance with it. The old and now thoroughly irrational theory of vein formations was that of ejection or projection of fused mineral matter through a cavity or fissure in the rock. The idea is almost completely erroneous, and is now supplanted by that of Professor Dana, which may be given in a few words : " The fissures occupied by veins are simply cavities penetrating the rocks more or less deeply down to regions of great heat, but not to those of fused rock. During the metamorphic changes, such cavities, as soon as formed, would begin to receive mineral solutions or vapors from the rocks adjoining. The rocks may con- tain sufficient moisture to carry on this system of infiltration if there were no other source, and this mois- ture and any vapors present would move towards the open spaces. The mineral matters thus carried to the fissure would there become concreted and commence the formation of the vein. These materials from the adjoining rock may be taken directly from it by simple solution, or be derived by a decomposition of some of its constituents."^ Von C'otta, in his excellent work on ore deposits, says : " There can be no doubt that all true ore beds were originally formed by chemical or mechanical precipitation from water. The formation of fissures, as well as their filling, is continuous. Metalliferous veins, which from their nature were formed at a great depth, could first attain the surface only by means of a great, and consequently very long continued, decom- position and erosion of the rocks covering them." Speak- ing of the length and depth of ore veins, he says : Up *» the present time it has never been proved that a lode has been followed to its end ; that is, to where the fissure actually ceased. Most of the stated cases concerning the wedging out of veins, or their becoming sterile with in- creased depth, rest on the fact that ores are generally dis- tributed in the veins. As long as the fissures exist there remains a possibility of their widening out and containing ore." Von Cotta considers it safe to assert that " ore veins will certainly be as deep as they are long." Under the new and rational theory of vein formation, the much abused iron pyrites or sulphuret of iron plays an important part. Le Conte considers it " the parent or the great carrier of all the other metals." Its presence in an ore vein is signi- ficant of strength and permanency. This being the case, there are in the State of Maine, all the characteristics of valuable veins, so far as sulphuret of iron is concerned ; for it is doubt- ftil if anywhere in the known world are to be found such ex- tensive deposits of this material. It is allowed, and, indeed, already proved, that there are in Maine many true fissure veins, well mineralized, of great length and thickness. Why, then, may they not have great depth ? The exploita- tions carried on in the State have proved beyond the shadow of a doubt, that the veins do actually improve both in quality and quantity with depth. If any additional proof is needed of the permanency of the Maine veins it will remain with the future, since time alone can give it. There is no silver mining region in the world that has given out. Mexican mines, worked by the Aztecs before the con- quest of Cortez, are still as profitable as ever. The old Spanish mines opened long before Hannibal's time, are still worked with enormous profits. The South American mines have constantly yielded their wealth for more than three hundred years and are as productive as ever. Mines in Hungary that were worked by the Romans before the time of Christ, still yield an abundance of ore. Maine Ores. — It has been said that the ores from the Maine mines are refractory ; this is true in part, but not whoHy so. The ores of Blue Hill are much sought after by the smelters, on account of being so easily reduced. This, then, is a refutation of part of the charge. There are no very deep mines in the state as yet, and the silver ores mined thus far are most essentially surface ores, and consequently contain many refractory elements. In some individual cases the ores have been found to be very refractory, while in others, on the contrary, they have been found to be easily reduced. On the whole I think it is safe to say that the ores of the state are not more refractory than those from other mining countries. More time is required for the develop- ment of the mines and erection of mills than most people suppose, and people must wait patiently for the completion of the work before they can expect great results. Now the question naturally presents itself, are the ores rich enough in the precious metals to pay for working? The quantity is, in most cases, pronounced large enough, the facilities for work- ing are allowed to be unsurpassed, and the ores can be mined at a price far less than those of regions unsettled, mountain- ous, and far from navigation, as most mining centers are. So the whole matter naturally rests upon the question of richness. Now an assay made from time to time of picked samples from an ore vein cannot give anything like a correct idea of the average value of the vein. It does prove that the mine contains rich ore perhaps, but not by any means that it is a rich mine ; consequently the practical miner has little or no confidence at all m reported assays, but always makes his own selections of ore for assay, usually choosing sam- ples of the best and poorest. And even then, when thinking he has made a judicious and fair selection, he may cheat himself, for it has been proved on many occasions that in making selections from ore piles we are mightily prone to take samples a little better than the average. The only way to ascertain the true value of a vein is to conduct a regular systematic course of assays on cross sections of the vein taken every few feet in depth and the whole of it to be assayed, no samples taken, but the whole mass crushed and assayed carefully ; or when a large pile of ore has accumulated on the dump, it can be crushed coarsely and cut down in quarters until an average sample is secured for assay. Either of these methods will give good, fair, average results, and are about the only means that will lead to that much desired end. We give here a table of average assays for Maine Minerals. 138 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. Ta1>le of Assays.—Ores of tlxe State of Maine. Tifiriffi'tn Ifame of Kind of Depth Silver 1 Gold Lead Cup'r JLJvij u lh v^y rf> mine. ore. in ounces HnFW perct perct Acton Dirigo Galena Soft 22.31 2.10 31.82 *' " *' 80 ft 84.96 trace 35,20 " Acton (( surf 21.70 3.0f 72.20 " " Sulph'ts » 10.84 2.57 15.7( *' " Galena *' 21.70 66.10 !! « Arsenic'l Galeoa ." 32.97 45.20 11.97 42.67 68.20 Blue Hill Douglas " 10 ft 56.23 14.67 47.00 " * Antimo'l 25 ft 72.00 86.00 ft " Pyrites 60 ft 5.50 6.00 22,50 " " Purple 10 ft. 9.60 800 IH.25 " Atlantic Pyrites surf. 4.60 6.0O 18.90 tc " " " 10.00 2.46 12.83 " Blue Hill " »( 9.20 4.50 13.48 Corinna Corinna Galena « 52.60 2.00 61.60 Cherryfield Gold qtz. " 3.63 17.49 It Cherryfield Galena 12 ft. 48.65 traces 35.25 Deer Isle Deer Isle Sulph'ts surf. 24 ft. 12.00 35.20 8.20 23.33 " " " 22 ft. 8.00 29.11 Gouldsboro Gouldsboro Galena surf. 116.00 trace *' " Sulph'ts " 44.60 30.00 7.60 *' " Gal. Con. 20 ft. 403.20 t« 78.92 Hampden Dun ton Galena 20 ft. 35.68 6.83 36.00 " *' Antimo'l 20 ft. 246.40 14.67 32.00 Haocock Hancock Sulph'ts 16 ft. 32.20 14.00 '' ,' " Concen'd 40 ft. 179.87 17 60 liubec Lubec Galena 20 ft. 28.14 20.00 22.00 11.10 " " " 14 ft. 16.60 trace 38.69 3.00 Lowell Shorey Sulph'ts 8 ft. 18.25 2.50 " '* " 6 ft. 11.60 14.60 Lincolnville Galena surf. 56.62 trace 62.50 Pitts ton Manhattan Quartz 6.00 6.30 Sullivan Sullivan Galena Sulph'ts 10 ft. 12 ft. 16 ft. 32.62 79.74 85.05 111.79 trace 14.00 trace 38.00 " " *' 20 ft. 121.21 5.40 10.00 " " " 30 ft. 67.86 14.00 8.00 " " Antimo'l 60 ft. 7,370.35 18.00 " " Sulph'ts 76 ft. 220.00 7.50 Sedgwick Edgemog'n Galena surf. 19.60 trace 20.00 " H " 12 ft. 51.00 9.69 28.00 *' " " 24 ft. 226.44 traces 24.00 * " 34 ft. 56.00 16 05 25.00 St. Albans " 6 ft. 14.08 trace " '* 15 ft. 62.20 1.80 82.60 Trescott " 6 ft. 31.87 trace 3S.00 6.60 Wakefield, N.H. Miner'I Hill « surf. 16.(10 S.oo 45.00 *' (t " 40 ft. 46.51 trace 65.00 « '( 55 ft. 34.68 14.40 42.00 It needs but a glance at the assays given in this table to convince the most skeptical that Maine ores do contain va,lue. It will be seen that this list contains only what might be termed surface ores. What may be discovered at a greater depth, yet remains to be seen. In reducing silver ores, they are divided into two classes, viz.: "smelting" and " milling " ores. Ores that contain twenty per cent, (or more), of lead, are usually smelted directly ; ores contain- ing a lesser amount of lead are " milled " ; in the latter case, if the silver is in the form of native chlorides, etc., it is treated without roasting ; but where there is a mixture of several sulphides, such as zinc, antimony, arsenic and cop- per, they require to be treated by roasting and chloridizing, and subsequent treatment by amalgamation. Wet or chem- ical processes for silver ores are rapidly superseding other methods, and will probably soon take the place of smelting. Many of the ores are too quartzose to admit direct treat- ment ; by this is meant the particles of ore are disseminated all throi^h the quartz gangue, not concentrated at any one point Such ores, although giving low assays, owing to the large amount of quartz present, are really very valuable, from the fact that they can be easily concentrated by machinery designed expressly for that purpose. For instance, take a galena ore in quartz, one-tenth of which is ore, and nine-tenths quartz, by separating the ore from the quartz, the expense of handling so much bulk is dispensed with, and ore is obtained in a concentrated form and can be sent direct to the smelter, who will pay a good price for it. Without this treatment, such ores would be valueless. It has been demonstrated that ores of this kind, when the mine is in a fair location, which contain at the rate of ten dollars per ton, in silver, will pay for mining, concentrating and reducing. This same method is applicable to copper ores as well, and the process of concentration may be seen in actual work at Blue Hill, where a large quantity of copper ores are separated daily from the quartz gangue. —Oompttedfrom P. L. Bartlett's "Mines of Maitt." THE MINING DISTRICT AT SULLIVAN, MAINE. IF New England were located in some distant and almost- inaccessible region, there is no doubt that its mineral resources would have been ere this well developed and generally acknovcledged, but laboring under the dis- advantage of nearness, it has been neglected. Its surface, moreover, is not cut up by mountains and canons, and the remnants of many of the old ridges are extensively covered by glacial drift. The Sullivan Mining District extends from the town of Franklin, through Hancock, Sullivan, and Gouldsborough, from northwest to southeast, about sixteen miles. A general idea of this locality may be gathered from the map accompanying, which we demonstrate Fig. 1. Sullivan is situated at the head of Frenchman's Bay, ten miles north from Bar Harbor, Mount Desert, twelve miles from Ellsworth, and thirty-seven miles from Bangor. It may be reached in summer by steamer, via Eockland and Bar Harbor, and has good hotel accommodations. A daily mail stage connects with Ellsworth and Bangor at all times Figures 2 to 5. Sections of Vein, Sullivan Mine, 85 ft. level. Down River Drift. ^caldjfifeettoaiiiiicl]. 'VlewslooklnsS.Dw ■'• U AgaHzea giiailz, * day.. Si^'ji Slate &c[naTtz,-(congIoineratBJ S.l'^Qoartz&liea'VT'Eiilptaidee.- i,ig Qobctz & diver snlptaldes,- , I . ("Oomstock" ore.-) S.iVl! ..^lae Slaitf' ofvein.- 6.K<; Partly altereuccnmbT'sIateai' t. Slack iKatdSiClaj strealo- SCft.S.E.£rom Shaft. Kote. AE iheee varieties carry eUverf hut ike proper oree are 2fos. 1 to 6, in* ctudedtNo, 5,iaaTilii£isli slaty quartzilet oXteniieri/rifihirbjTgetititeaad/lakesilieT &Sts:&.fiomSaai\i, BUiSHSixw.Shsii, t&tt.S.E.fro»i.£]jatt, of the year. The staple production of Sullivan is granite, ot which unlimited quantities of very fine quality may easily be obtained. At first impression a stranger would say that no other rock existed there, but further examination dis- closes the fact that the region has more slate than granite, and that along or near the line of their contact are most of THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 139 the mineral veins of the district. The lithological character- istics of the surface are shown on the map. The slates of the region are quartzitic, of unknown age, undoubtedly very ancient, and referred to the latter Laurentian — the limbo to which most of the doubtful New Eng- land rocks are consigned. Through these have been thrust the immense mass of granite and its allied rocks, from which action has proceeded the formation of the principal mineral de- posits. The first discovery of silver ores here was made by Mr. A. A. Messer in May, 1877. They were discovered below high-water mark, on the shore of the bay, at the site now occupied by the shaft of the "Sullivan" mine. The vein, when found, showed about ten inches of quartz, carrying pyrites, galena, and traces of brittle silver (stephanite). A coffer dam was built and shaft commenced. The first na- tive silver threads were found about ten feet down. The vein was uncovered in several other places, also below high-water mark, proving that the showing at the shaft location was the poorest yet found. Seventy-five feet from the shaft, southeasterly, the quartz is four feet wide at three feet Figures 6 to 9. Sections of Vein, Sullivan Mine, 8g ft. level. Up River Drift. feet to an inch. Views looking If. W. i" TV Agatized qnarte, Ac. 2.VM Conglomerate. 3.«'. QoartzaadlieavjrsulpluaeSi 4. ix Qoattz and EUver Gulpliides. ^.*.' Seim.ctyBtfll1ine quartz and gny dlveE mt. C. ''li*.' Blue elBte of vein. 6. ^c^ Partly altered conntiy slateBa 7. Black1uul3s, clay atreaka. MHttlS.-WSramSiiait. below the beach, and the lowest assay I have known from this is over $200 per ton in silver. The ore is principally stephan- ite. Proceeding with the shaft, at about thirty feet depth, the vein, composed of quartz, with more or less slate highly im- ITSiftJf.WJiom. Shaft. ;!5Ha.K.WjEraiii, Shalt. 8alt.N.W.from Shalt w pregnated with sulphides, was found to be four feet wide. Drifts have been run southeast from the 75 feet level, and northwest from the 85 feet level. Sections showing the formation of the vein, and to some extent the nature of the ore, are given in Figures 2 to 9 inclusive. The ore is essen- tially silver, sulphides and native. In quartz and slaty gan- gues, with slight amounts of iron, zinc, etc., as sulphides, and also galena. ■ Of the silver minerals, stromeyerite is most plentiful, stephanite next, argentite (silver glance), common, native silver in flakes very plenty, threads frequent, lumps oc- casional. Ruby silver is exceedingly rare; antimonial silver has been found. The occasional yellow copper sulphide met with has a peculiar lustre and runs very rich in silver. As stated above, the course of the vein is from northwest to southeast, with the strike of the slate running parallel to the line of contact of the granite. The vein is in the slate, dipping at an angle of 70° from the horizon, northeasterly, toward the granite, which it probably reaches in less than a thousand feet. The slate also dips toward the granite at this place about 37° from horizontal, although at some other places not more than 12°. (See sketch. Fig. 10.) At the contact of the slate and granite, the latter often penetrates the bedding of the slate, in known instances riearly 200 feet. The granite is much cut up by dikes of black trap, which also run into the slate, faulting the Tein in several places. A sketch of dikes and faults is shown in the map. (Fig. 11). The geological sequence of the formations appears to be, commencing with the oldest : Quartzite slates. Granite, and silver vein in slate. Trap. Quartz veins in granite and syenite. The general line of fissure of the Sullivan vein, passing northwest under the bay about three miles, strikes the shore at the Cline shaft, shown in section in Fig. 12. Here, owing to some local disturbances, the vein is deflected more westerly and cuts directly across the slates, by which action it has been split up into no less than nine veins, dipping to meet within four hundred feet of the surface. The shaft is sunk on No. 3 vein, this appearing to be the main branch, and has reached the junction of No. 4 at about 60 feet from the surface, as shown. The ore here is copper pyrites, galena, etc., at the surface assaying well for silver, and appears to carry gold and silver in form of tellu- rides at a depth of 60 feet. Average assays about $20 per ton. Returning to the Sullivan mine, and passing southeast a few hundred feet, we come to the Stimson shaft, which struck the vein, well developed, at a depth of 64 feet. About five hundred feet further southeast the vein is faulted 140 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. by a large dike of black trap. Beyond this it continues in a direction more easterly, and is accompanied for a portion of its length in the next 700 feet, by a heavy quartzitic band. Fig. II. Vicinity of the Sullivan Mine, 3cale, 1^ juclies to a mile. ..Line of contact, Granite & Slates. mam^^ TrapDykcs* — ^— Quartz Vein, in Slates. &. SuniranSliatt. £. Stimpson. *• C. 'Waiilceas " "S, Brools u IL-AsHex " nearly 25 feet wide, carrying arsenical iron. This iron gives a show of gold, and in some cases gives an assay for silver. The vein proper is highly decomposed. The sketch (Fig. 13, see p. 141), gives a section across this formation, about 650 feet beyond the large dike, easterly. The vein Fig. 12. Cline Shaft.Hancock.Maine. Scale,16 £t.to an inch. Section looking W. Showing junction of veins 3 & 4, Vein No. 4../ V ^ffi/fS 10. a iwBi JO. 1.%1 Conntiy slates.- 2,B Quartz vein.- (VeinNo. 3.-) 3.n Alterea (soft,) date.- 4,g Very hard blade slatea.- Koto. The'hardlHtuki'.aladteappvirtd at abcnit n/cet, anclKeremaeedediiiau so/KSro.SiOale- It carries both gold and silver. In the Ashley the same occurred, sparingly, and sulphides carrying $26 to 130 per ton in gold and silver have been found at the present bottom of shaft. No further developments have been made on this vein and its connec- tions, but some nine miles southeast, in Gouldsborough, two veins have been struck in the syenite, which bid fair to become of value. " G " on the map (Fig. 1), the "Young" mining property, is a galena vein, with strike northwesterly and southeasterly, or about parallel with the Sullivan vein. " H " is made up of galena and copper sulphides, the surface ore assaying quite rich in silver. The strike is nearly north and south. Both these veins dip nearly perpendicularly. Less than a year sufficed to demon- strate the existence of strong fissure veins in this district, carrying high-grade ores, and to give every assurance of their permanency and value. As has been stated, the level surface of the country, covered with drift gravel, makes pros- pecting a slow matter, and there is no reason why there should not exist many mineral deposits in the Sullivan district as good or better than those already dis- covered. — Compiled from a paper I C. W. Kemptcm, M. E., Transaeticms American Inatiiaie of Mining Engineers. GOLD IN NEWFOUNDLAND. 30. a. so. J beyond this is fan ted and deflected, and next worked at the T" K ^I'aft'^o called, about half a mile east, and also at ^e Ashley shaft some hundreds of yards from the Brook. Fig. 14 (see p. 141), gives an idea of the formations at these two shafts, their height being referred to high-tide level In the Brook shaft some telluride ore has occurred but not enough in quantity to enable the mineral to be identified THE discoveries of gold made in Newfoundland dur- ing 1880, have aroused considerable interest in the colony. The following report on the auriferous district by the official geologist, Sir Alexander Murray, indicates a possibility of the island becoming as celebrated for its mines as it had been for its fisheries. Sir Alexander says: "Reports having beeu circulated for some time past that gold had been discovered in quartz veins in the regions near Brigus, of Conception Bav, I considered it my duty to make a personal examination of the ground, and to have portions of the veins tested by blasting, under my own immediate supervision. These rumors of the presence of the precious metal, have naturally had the. effect of inducing people to make appli- cations at the Surveyor General's office for licenses of search over the supposed auriferous area. I proceeded to Brigus on Monday, September 27, and on the afternoon of the same day visited the locality where, according to report, gold had been found. Here I selected and marked out a series of spots upon the quartz for trial, and on the follow- ing day, which proved to be a rainy one and unfit for ex- perimenting I inspected another area, about two miles southwest of the former place, and nearly in the strike of the quartz-bearing strata, where I found the rocks, with their reticulations of quartz veins, to be nearlv identical in all respects. This latter place is known locally as Fox Hill, and from it sundry specimens of gold are said to have been taken, one of which is in my possession. The place where I finally determined to t.y the first blast is situated near the so-called Brigus Lookout, about equidistant from two peaks, each a triangulation point of the Admiralty surveyors, the heights above the sea being marked on the chart respectively 408 and ' 413 feet. By the first blast from two to three cubic feet of rock was removed all of which was carefiilly broken up, washed, and examined which operation finally resulted in the display of en or twelve distinct "sights" of gold. In one fra|ment, largely charged with daiTc green chlorite, tbe gold shows Itself in three places distinctly, while many small specks are Frf.''^'' ^^^^-ir^"','-"^ '\S°°'^ '«°«- The fracture of a fragment of milky-white and translucent quartz, which was o^n?H 1° f°K }^l^''l^ P'^^®"' J-evealed two large patches of gold, both of which, together, if removed from the matrix. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 141 would probably produce about a pennyweight of the metal ; while several small masses or nuggets were found adhering to the small broken fragments of quartz at the bottom of the pail in which the rock was washed, the largest of which contained about ten or twelve grains of gold. From some specimens, in which no gold was perceptible to the naked eye, which I had selected for analysis, I found among the dust at the bottom of the bag in which it was carried a small Formations atWaukeag Property, Sullivan, Maine. Boole, 10 feet to an Inch. SectlonlooklnsS.Xl. . BltjK iToter marie- tl Qnartxronclomerate. a Blueshto. V; Qiinrtz nnd lime^ 3t Conntry quartzite slates* !ij Slaty con[:louiera(e. O Quartz and arM;utcal IrOQi SftBlack traji. nugget weighing three grains. A second shot was tried on the same lead, a few yards distant from the first, but, owing to our imperfect implements, it failed to blow out more than a few pounds of rock, in which no gold was perceptible. In the specimen I procured from Fox Hill the metal occurs thickly in the minutest specks, scarcely, if at all, perceptible to the naked eye, but readily recognized under the lens. ^Qoortz, QAltiired,___ CHaid black. SS SbckLioiyiUtn.-' Altered (BofO Asiat^ aialea.- Fig. 14. Brook &. Ashley Shafts. Sullivan, Maine. feet to an inch. View looking N, W. where it chiefly surrounds a small patch of chlorite. The rock formation, intersected by these auriferous quartz veins, is of Huronian or intermediate age, or of the group of strata next below the Aspidella slates of St. Johns. The group consists chiefly of greenish, fine-grained felsite slates, which, judging by the weathering of the exposed surfaces, are also magnesian and ferruginous. The cleavage is exactly coin- cident with the bedding, and the slates occasionally split into very fine laminae, but frequently into strong, stout slabs, which are used to a considerable extent at Brigus for paving, for hearth stones, and for building foundations and walls. A dip taken on the beds just in front of the place where the gold was found was north 56° west by compass, or north 88° west from the true meridian, or of inclination 45°. Parallel joins intersect the strata bearing south 80° west magnetic, or north 68° west true. By the side of the road at Brigus the dip on some strong slabby beds was found to be north 42° west magnetic, or north 74° west true, or of inclination 40°. A rough and hummocky belt of coun- try, from three-quarters to one mile wide, which forms the nucleus of the peninsula, tween Bay de Grase and Brigus Harbor, thickly intersected by reticulating 1 artz veins, varying in thickness from less than an inch to upward of a foot, which often appear to ramify from a cen- tral base or great mass of quartz, often extending over many square yards, and usually forming low, isolated hummocks or hills. The general run of the belt is as nearly as possible northeast and south- west from the true meridian,-having been traced in a southwest direction from Brigus Lookout as far as Fox Hill, and, as lam informed can be traced several miles more in the same direction. Thus, although many of the veins, both small and large, may be seen for considerable distances to run ex- actly parallel with the bedding, the network of the whole mass runs obliquely to the strike of the beds, which are also minutely intersected by the smaller veins, crossing and reticulating in all directions. I nowhere observed anything to indicate a true fissure vein, and consider these with gold, as altogether veins of segregation. The resemblance in general character of the strata with their included aurifer- ous quartz veins in New Foundland, to those of Nova Scotia, must strike any one who has visited the two coun- tries with the purpose of studying their geological features, and I venture to say that the description given of the latter country by Dr. J. W. Dawson, might in many respects equally apply to the former, although, according to that author, the auriferous country of Nova Scotia is supposed to be of Lower Silurian age, while that of Newfoundland is undoubtedly unconformably below the Primordial Group, which, with abundant characteristic fossils, skirts the shores of Conception Bay. Without presuming to offer an opinion as regards the age of the Nova Scotian strata, the fact of the resemblance is suggestive. Chlorate is profusely dis- seminated through the quartz veins, filling up cracks and drusy cavities, and it was observed that the visible gold was always in or near a patch of chlorate. Some specimens which were produced at the place of trial, presented small cubes of galena, minute cubical iron pyrites, and, in a few instances, small crystals of sulphate of copper, together with specks or grains of gold. That a large area of country in the regions referred to is auriferous there can scarcely be a doubt, although nothing short of actual mining and practical experience can possibly prove what the value of the product may be, or whether the prospects of obtaining a remunerative return for the neces- sary outlay are favorable or otherwise. The specimens which have been obtained, although an unquestionable evi- dence of the presence of the precious metal, cannot by any means be taken as indicative of a certain average yield ; in- deed, to quote the words of Dr. Dawson, from his "Acadian Geology," page 626, " It is not easy from mere inspection of the veinstone to predict as to its value, since the gold is usually invisible to the eye." And again, at the following page, when treating of the characteristics of the Waverly Mine, he says : "Visible gold is rare in this vein at present, the greater part being in a minutely disseminated and in- visible state." An analysis of quartz collected, in which gold is imperceptible to the naked eye, may aid in reveal- ing some evidence of its constancy, and may throw some light upon the possible average of superficial contents over 142 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. certain areas surrounded by similar circumstances ; but it may be safely predicted that the irregularities of the distri- bution so conspicuously displayed by the veins on the sur- face, will extend beneath it, and that it will be mainly on the stronger and more persistent bands, where intercal- ated with the strata, that mining will extend to any con- siderable depth. The indications of gold in this country, then, are sufficiently favorable to merit a fair trial, and there are good reasons to hope and expect that ample capital applied to skilled and judicious labor, may be found remunerative to ftiture adventurers, while a new industry will be added to give employment to the laboring population of the island, and possibly bring this despised and but little known country into more prominence and consideration abroad than it has hitherto enjoyed. — CompUed from the Scientijic American. THE NICKEL ORES OF ORFORD; QUEBEC, CANADA. IN September last I had my attention called by Mr. R. G. Leckie to a deposit of nickel in the township of Orford, province of Quebec. In many ways it has proved to be a subject of great interest. As this ore is, as far as I can learn, entirely new in mineralogy and metal- lurgy, it has seemed to me that it would be a matter of in- terest to have, in a short paper, the peculiarities I have met with in studying it. This deposit of nicxel was first described by Dr. T. Sterry Hunt, in the Geology of Canada, 1863, p. 738, in the following terms : " The general diffusion of nickel throughout the magnesian rocks of the Quebec group has been already noticed. It has, however, never been met with in any considerable quantities in these rocks, although work- able deposits of its ores may reasonably be looked for in some parts of their distribution. On the sixth lot of the twelfth range of Orford, the sulphuret of nickel (millerite) is met with in small grains and crystals, diseminated through a mixture of green chrome-garnet, with calc-spar, and through the adjacent rock. Explorations were made at this place a year or two since in the hope of obtaining cop- per, which was supposed to be indicated by the brilliant green of the garnet ; and lead, small quantities of which are found in the vicinity. The ore of nickel is sparingly dis- seminated in small grains through the garnet and calcar- eous spar, and the masses submitted to analysis did not yield more than one per cent, of nickel. It is, perhaps, doubtful whether this small quantity could be extracted with profit." On page 497 is the following : " It (the garnet)forms granular masses, or is disseminated with millerite in a white crystalline calcite. The largest crystals are found in druses in the massive portions, but do not exceed a line in diameter, and are dodecahedrons with their edges replaced. " This garnet resembles closely the ouvarvo- vite from the Urals. " This beautiful garnet, if obtained insufficiently large crystals, would constitute a gem equal in beauty to the emerald." My first visit to the mine occupied several days. We were encamped on an island in Brompton Lake. . A half mile distant lay the nickel mine, on the side of a hill. On this deposit there are. two shafts being sunk, 180 feet apart. The hanging wall is a magnesian limestone ; the percentage of magnesia is, however, small. The width of this has not yet been determined, but on the surface other smaller veins and branches of the spar and garnet are visible. The foot-wall, a dark-colored serpentine, is very clearly defined. At a considerable distance south of No. 1 shaft the line of strike is cut at right angles by a sharply defined band of clay slate. The vein has now pretty much the same characters as be- fore described in the Oeology of Canada, viz., green chrome- garnet, calcite, and millerite ; besides these, small particles of chromite are found. There is no trace of copper or cobalt present, possibly a trace of arsenic, though I have not thoroughly established that yet. The hanging wall contains nickel in small grains. The following analysis gives a fair idea of the composition of the vein : Calcite and millerite . . . Black speclts (chromite) . Chrome garuet , . . 50.40 per cent. . 6.87 " . 42.73 " No. 2 shaft was started on the vein in decomposed spar and pyroxene, carrying occasionally small masses of chrome- garnet. The vein here is fully as wide as in No. 1 shaft. The pyroxene (analyzed by Dr. Hunt) has the following composition : Silica . . 47.15 Alumina . . . 3.45 Oxide of iron .... 8-73 Oxide of magnesium . 24.65 Oxide of calcium . 11.35 Water 6.83 101.08 —Bana^s Mineralogy^ p. 221 The chrome-garnet is the beautiful green crystal, a rhombic dodecahedron of the isometric system. It remains abso- lutely untouched in hot, strong aqua regia. I am still in hopes of finding crystals in some of the many druses which occur in the vein, large enough to show their beauty to tbe naked eye. The specimens which I have will require a glass to bring out the crystals. In the ore near the surface, which only was accessible at the time the Geology of Canada, quoted above, was written, the millerite occurred in grains as there described, but as the shafts have gone down, the crystals have increased in size, till now we have the large ones, which show the characteristic needles very plainly. Sometimes these occur in clusters of needles, placed side by side as it were, forming a flat plate. It (the millerite). varies in color greatly according to the depth. In the samples shown from No. 2 shaft, there appear two distinct, differ- ently colored metallic sulphides, and this was the case with specimens from No. 1 before it got below the decomposed spar. At first it was supposed that magnetic iron pyrites or other sulphides might be present, but the analyses go to prove it all to be millerite. At first I had grave doubts about the practicability of treating the ore, owing to the infusibility of the chrome-garnet; at the least I expected to have to add fluxes, but the results have proved quite the contrary. The first experiments were made in a Siemens furnace. A black- lead crucible full of the ore was placed on the bank of the furnace, while making low steel. Looking at it fifteen or twenty minutes later, I was surprised to find it liquid. It was poured into a niold, and a good button obtained, which was more ductile than the pieces shown, and had the yellow color to a greater degree when polished. The next experi- ment was to run 508 pounds of the ore through a blast furnace. Through the courtesy of Prof. Richards, of the Massachusetts Institute of Technology, I was allowed to use the blast furnace of his laboratory. It is about one foot square by four feet high, and uses gas coke as fuel. I am largely indebted to the great facilities offered by Prof. Richards for the results I have obtained. Ten minutes after the ore was charged into the furnace, slag appeared at the tap-hole. The whole charge was run through in 2J hours ; 146 pounds of coke being used, making about 3.5 of ore to 1 of coke ; and 8 pounds of matte or alloy were obtained, containing Iron . . Nickel . . 71,84 per cent. . 22.70 " The ore treated was a very lean lot from near the surface, probably containing not over one half of one per cent, of nickel. The slag had a mere trace of nickel. As to the further treatment of this product, I am not prepared now to make any report. Prima facie, it would seem that the problem waii a simpler one than most nickel manufacturers THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 143 have to face^ since there is no copper or cobalt present ; but not finding it spoken of in the books on metallurgy, I have been obliged to investigate as I have gone along, and my progress has consequently been slow. At some future time 1 hope to give the results of the present investigations, and at the same time to be able to report some progress in ex- tracting the chromium in some merchantable condition. Inasmuch as the slag produced must contain somewhere about 6 per cent, of sesquioxide of chromium, it becomes extremely valuable, provided it can be extracted easily, but while some slags produced yield it up with great readiness, others yield it up with great difficulty. As to the per cent, of nickel which this ore carries, and which will determine its money value, it is not easy at present to speak with any certainty. At the bottom of No. 1 shaft, pieces taken to be average ones for three-quarters the width, show between three and four per cent, nickel. Specimens from No. 2 look equally rich. What is to be the average yield after the mine is opened up it is impossible to say. Compiled from a paper by W. E. C. Eustw, A. B., S. B.; Transactions American Institute of Mining Engineers, THE GOLD-BEARING MISPICKEL VEINS OF MARMORA, ONTARIO, CANADA. ABOUT thirty miles north of the city of Belleville (which is situated on a branch of Lake Ontario), and in the township of Marmora, Ontario, there is found a belt of gold -bearing quartz veins, which present geological, mineralogical, and economic fea- tures of great interest to the profession. The district in which these veins are found is characterized as rolling country, with low rounded hills of syenitic granite, over- lain on the flanks of the hills by Silurian limestones, which lie in nearly horizontal beds, and in some places are so fine in texture as to afford lithographic stone of a fair quality. The gold-bearing veins run north and south through this belt of syenitic granite, and are quartz-filled true fissures, with micaceous or talcoid slates forming the walls of and horses in the veins. This talcose, slaty rock is evidently the product of the chemical decomposition of the syenite along the fissures, the quartz being segregated from the country rock into the veins, and the hornblende of the syenite furnishing the magnesia of the talcoid slates. The veins, besides quartz, contain also, as gangue, crj'stallized calc-spar, and occasionally crystallized black mica. The ore scattered through this gangue, in heavy bands in some places and in detached, well-formed crystals at other points, is an arsenical sulphuret of iron (mispickel), having a com- position of about 55 per cent, o'f iron and 25 per cent, of sulphur. This mispickel contains the greater part of the gold for which the mines are worked, but free gold is also found scattered through the quartz in small leaves and grains, and it is also found, showing freely at times, in the mispickel itself. The tests which have been made of these veins and their ores have so thoroughly established the facts of the continuity of the veins, both in length and depth, and the economic value of the ores, that the interest which would naturally be taken in so promising a prospect as this was, even before development, has now deepened into the sub- stantial form of an interest in a great industrial enterprise. Gold was first discovered in this district in 1865 as free gold in quartz and mispickel, and sporadic attempts have since been made at two or three points to treat the ores, chiefly by raw amalgamation. As might have been anticipated from the nature of the ore, but a very small proportion of the gold was saved in this way, while the expense of treat- ment in the small and primitive mills adopted was great and the loss of quicksilver heavy. There was neither experi- ence nor technical knowledge available at the time, and no sufficient capital to put up suitable works or to develop the mines; hence they have lain idle all these years without a single serious effort to work them on an economical basis. Nevertheless, many tests of the ores were made, some on quite an extensive scale, in reduction works in the United States and England, and the results were invariably satis- factory. By far the most extensive and the only systematic tests of these veins and their ores have been made upon the properties combined under the ownership o^ the Canada Consolidated Gold Mining Company. From these tests some four or five parallel veins have been proved to exist in a belt of 500 or 600 feet in width, running through the property of this company for a length of over three-quarters of a mile, while the main vein has been opened on acyoining properties, making a total proved length of this great fissure of about three miles on the vein, a fact which, next to actual sinking, may be considered the best proof of the continuance in depths of the veins. Three of these veins have been proved on this property by costean pits and shafts sunk at short inter- vals along their outcrops, to depths varying from 15 to 150 feet. In this manner, the east or main vein has been thorough- ly explored over a length of about 800 feet by shafts of from 40 to 150 feet in depth; these have in every case, been in pay- ore all the way ; their lowest points are now in as good ore as has been found on the property ; and they have shown this vein to have a thickness exceeding 20 feet in many places, and averaging probably 8 or 10 feet, while the mid- dle and west veins, though smaller, have still apparently a thickness of three feet and upward. As each foot of thick- ness for a length of 700 feet and a depth of 150 feet will yield about 10,000 tons of ore, the estimate which counts as technically in sight, in this small part of this vein alone, from 60,000 to 75,000 tons of ore, must be considered very moderate. These estimates and some much higher have been made by a number of experts of large experience. Perhaps the question of greatest interest is the average gold contents of the ore; and as this has been determired in a very thorough manner under my own supervision, I shall enter somewhat into the detail of the work, as showing what is considered essential in determining with safety the average value of gold ore and of a mine. Some three or four thousand tons of ore have been mined upon this pro- perty, and of this about a half has been milled or treated in a variety of ways, and the remainder is now on the dumps. The first tests of these ores were made from sam- ples selected by various experts who had from time to time examined the property. Some of the results were as fol- lows : Twenty assays, made at the laboratory of the Gen- logical Survey of Canada, of samples from the Marmora mines, gave an average of 1.6367 ounces of gold, equal to $33.81 per ton of 2,000 pounds. Twelve of these samples were from the Gatling mines, and gave an average of 1.9107 ounces of gold, or $39.47 per ton. Professor E. J. Chap- man, of the University College, Toronto, says : " I have made assays of its ores from time to time, and I have never failed to obtain from any sample (mispickel), as a minimum value, at least $50 per ton." " The following results were obtained from samples collected very carefully with a view to obtain the average amount of precious metal held by the undressed ore : No. 1, or East Vein — Gold, 73.50 ; silver, \ ounce. No. 3, or Middle Vein— Gold, t69.H6 ; silver, \ ounce. O'Neil Shaft, middle vein— Gold, ?.60.26 ; silver, \ ounce. On a former occasion, I obtained from a small sam- ple of the Gatling ore $112, and from pure mispickel $156 per ton." Mr. James Douglas, Jr., Mining Engineer : "A sample taken as fairly as possible from the ore-piles on the Gatling Company's property, the five acre lot, and the Hawk- eye lot gives me in gold 1 oz. 5 dwts., value, $25.84 per ton of 2000 pounds." Professor W. T. Rickard, of London, says : " I took samples from the various shafts and opening on each claim, and ground them, together. . . . I picked out a large quantity of pure mispickel, crushed and sampled, &nd assayed the same. . . . I deducted the estimated amount of quartz, associated with the mispickel, and then alhwed 50 per cent, for depreciation in the quality of the mispickel. The following results were obtained by careful assay : "Hawheye ore from three shafts mixed mispickel — Gold, $753,48 ; silver, $15.71. Total, $769.19. "Gailing five-acre lot. —From one shaft quartz— Gold, $200.93; silver, $3.14. Total, $204.07 per ton. " Gatling Company.— From three shafts, mixed mispickel — Gold. $351.63 ; silver, $21.91. Total, $373.54. "^(?afflm^ Company.— O'Neil Shaft, third vein— Gold, $376.64; silver, $7.35. Total, $384.49. " Tvt- tle Property.Smface quartz— Gold, $125.48 ; silver, $4.70. Total. $130.18. 144 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 'Mucraje— Firs(>-olass quartz and pure mispickel Deduct 4-5 ton for gan^ue in bum, leaving " }/i ton for inferior mispickel, leaving " for loss in reduction $7 23, leaving Or netyiiMd of ore in treatment tfSO per ton. $372 29 74 46 , 37 23 30 00 F. W. Daline, Esq., who dressed a lot of this ore sent to Swansea, says : " The ore I treated contained, before dress- ing, 2J ounces of gold to the ton(2240 pounds). " Captain Benjamin Plummer, who examined these mines for Messrs. John Taylor & Sons, of London, carefully sampled the ores from the different openings, and had his samples assayed by Professor Chapman, of University College, Toronto, who obtained the following as the average of a number of assays, gold counted at $20.66 per ounce troy : Samples No. 19, Gold ?38.65 per ton of 2000 pounds. '' No. E, " 24.87 " " No. F, " 36.60 " " " No. 6, " 24.74 " " Average, »31.21. The amount of silver in these samples never exceeded \ ounce per ton. Two barrels of average ore treated at Balbach's works, in Newark, N. J., yielded : From East Feira.— Gold, $23.76 ; silver, $4.07. Total, $27.83 per ton of 2000 pounds. From O'Neil Shaft. — Gold, $25.62 ; silver, $4.39. Total, $30.01 per ton. Four barrels of ore sent to Messrs. Richardson & Co., Swansea, yielded as follows (assays being reduced to dollars per ton of 2000 pounds): Tuttle Shaft— Go\A, $93; silver, $7 per ton (2000 pounds). Gatling Company's Deep Shaft.— Qold, $37.21 ; silver, $20 per ton (2000 pounds). Gatling Company's ^ySAa/if.— Gold, $23.15; silver, $18 per ton (2000 pounds). Gatling Company's O'Neil Shaft. — Gold, $23.15; silver, $100 per ton (2000 pounds). The report for a large lot of ore from the O'Neil shaft, subsequently sent to the same Swan- sea parties, was as follows : For 19.8 tons : Gold, $23.16 ; silver, $0.50 per ton of 2000 pounds. For 9.9 tons : Gold, $27.90 ; silver, $0.75 per ton of 2000 pounds. For 4.4. tons : Gold, $55.81 ; silver, $0.50 per ton of 2000 pounds. Analy- ses of pure mispickel, made by Thomas Thomas and J. Hernaman James, Assayers in Swansea, to Messrs. Richard- son & Co., were as follows (the gold being reduced to dollars in a ton of 2000 pounds at $20.67 per ounce) : SMilt CETSTALLIZATION. LARGE CRYSTALLIZATION. Peroxide of iron ... Silica Sulphur. . .... Arsenic Nickel 64.00 0.51 19.03 25.70 trace, trace. $306.95 66.00 0.03 18.13 23 00 SiIvpr(perton <.f 2000 pounds) . . Gold (per ton of 2000 pounds) . . $6.50 fJ2920.67 Mr. E. W. Harmon, in 1876, tested the ores from these properties in the interest of Boston parties, who had a pat- ent process for treating sulphuret ores. The following are the results obtained by Mr. Harmon from average samples selected by himself, per ton of 2000 pounds: No. 1. East Vein Gatling Company, gold, $123.84; No. 2. East Vein Gatling Company, gold, $37.84 ; No. 3, East Vein Gitling Company, gold, $37.84; No. 4, East Vein Gatling Company, gold, $75.68; No. 6, Middle Vein Gatling Company, gold, $48.16 ; No. 6, Middle Vein Gatling Com- pay, gold, $116.96 ; No. 7, West Vein Gatling Company, gold, $41.28 ; No. 8, West Vein Gatling Company, gold, $120.40 ; No. 9, Sample from all of foregoing, $61.92 ; No. 10, Gatling South, $41.28 ; No. 11, Gatling five acres, $550.- 40 ; No. 12, Gatling five acres, $595 12 ; No. 13, Gatling five acres, $37.84 ; No. 14 Williams mine, tailings, $34.40 ; No. 15, Gatling Company— Shaft, free gold, $440.32; No. 16, Gatling roasted steely ore, amalgamated, $48.16 ; No. 17, Gatling rich pyrites, raw treatment, $1265.92 ; No. 18, 1 pound average ma- terial from first test by a stirring (almalgamating) process, $52.46. 18.7 tons of ore from the several shafts of the Gat- ling Company's mines were then treated by the same parties, the process being roasting and almalgamating ; the roasting was veij imperfect, being effected in a revolving cylinder only 3 feet diameter and 12 feet long, heated from the out- side, and with a strong draught of air forced through it by a blower. The consequence was, that the fine-dust contain- ed much gold, and the roasted ore carried 6 per cent, of sul- phur. The following were the assays of lots of from two to three tons each : No. 1, Ore, $30.90, Tailings, $30.80 ; No. 2, Ore, $41.20, Tailings, $6.67; No. 3, Ore, 65.23, Tailings, $6.87; No. 4, Ore, $41.20, Tailings, $6.87; No. 5, Ore, 151.60; Tailings, $8,58 ; No. 6, Ore, $44.71, Tailings, $12.94. Average gold in 18.7 tons was $35.46 per ton, counting gold at $20 per ounce. Gold actually saved was $25.32 per ton, or 71 per cent, of assay value, while there was still in the bottoms in flue-dust returnable for retreatment, obtainable gold that would have made the yield $27.31 per ton, or 77 per cent. ; and tailings were extremely rich, and could easily have yielded on shaking tables or belts gold enough to have made the actual yield $30 or $31 per ton. Captain Thomas Couch, Mine Superintendent, in his examination of these mines, in February, 1880, carefully sampled the several mines, taking one and two ton samples of the ore just as it came from each of the shafts and ■ levels, without sorting. The results were as follows : Tuttle shaft, 2 tons, Deep shaft levels, 2 tons, . Middle vein, 2 tons, N. Hawkeye shaft, S. Hawkeye shaft. Concentrates (Tuttle shaft), " (Levels deep shaft), *' (Middle vein), Gold. $26.46 per ton. 16.33 32.65 " 7.85 7.44 " 137.48 65.00 " 107.48 " 129.19 Silver. 1.28 ounces. .79 1.58 " .38 .36 6.65 3.14 6.20 6.25 " Assayed by W. E. Gifford, 64 Pine Street, New York. Mr. R. H. Stretch, Mining Engineer, sampled the mines by taking one-ton lots of the ore just as it came from the several shafts and levels, without sorting, and the result of his assavs was as follows : Deep shaft, bottom, $21.50 per ton ; N." level, $9.00 per ton ; S. level, $7.50 per ton ; a shaft (3 samplings), $17.92 per ton ; Tuttle shaft, $19.00 per ton ; average after parting; gold, $13.06 per ton. By far the most exhaustive tests of these ores were made under my own direction. Having secured a working bond upon these properties, I carried on mining and milling ope- rations with a force of eighty or ninety men during nearly four months. During this time, seven shafts were worked upon and attained depths of from forty to one hundred and ten feet ; and two levels of forty feet each in length were driven. Three of these shafts, namely, the Tuttle, the A shaft, the deep shaft, and two levels were those upon which the most work was performed, and it is to the ore from these that the following remarks are confined. These openings proved a length along the main vein of about 700 feet. The ore extracted, without any sorting whatever, was taken to the mill; it was then weighed and crushed for the greater part in five-ton lots, every twentieth shovelful as it came from the Blake crusher being laid aside for a sample. The samples of five-ton lots were crushed fine, quartered down as usual, and assayed ; thus, one hundred and eight lots, nearly all- representing five tons of ore, were assayed sepa- rately, while fifty-one tons from the Tuttle shaft were sampled in the same careful manner in one lot by Mr. Thomas Macfarlane, of the Wyandotte Silver Smelting Company. The assays of these several samples are given in the following table. It will be noted that the richer five- ton lots were obtained by selecting the heavier sulphurets from the remainder of the ore in the ore-house so as to demonstrate the effect of rough hand-sorting ; the low assays were therefore of second-class ore; the whole number of assays gives, however, the average yield of the ore just as it comes from the mine without sorting. The higher assay numbers (last assays made) were, in general, from ore mined nearest the surface, and which accordingly was found at the centre of the dump. Nearly one-half the dump was milled, and the last milled came from the centre of the dump. Note. — The proportions of gold and silver m the assay buttons were obtained by parting 89 buttons in one operation. It was found the average was 68 per cent, gold, 32 silver. The following t^ole gives only the gold, or 68 per cent, of the weight of the button . ft! THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. 145 Record of Assays of Canada Consolidated Gold Mining Company's Ores, mostly from, the Galling Mine — 108 samples, mostly 5 tons each, representing a total of 512 tons of 2000 pounds. 1. 2. 3. 4. 5 . 6 . 7. 8 . 9. 10. 11. 12. 13. 14. 15. 18 . 17. 18. 19. 20. 21 . 22 . 23 . 24 . 25 . 26 . 27. .*33 04 14 06 1) 84 . 18 98 . 43 94 . 15 11 . 11 60 . 10 55 . 14 76 . 8 44 . 11 CO 8 79 9 84 9 14 . 7 73 11 25 . 16 17 . 14 00 . 7 ; . 11 25 . 9 49 . 7 03 . 9 14 . 8 79 . 11 26 . 8 44 . 18 28 28. . . . . $6 33 20. . . 8 08 30 . 25 31 31 . . . . 7 03 32. . . 33 74 33 . . 7 38 34. . . 7 38 35 . . 6 60 36 . . 12 65 37. . 16 17 38 . . . 9 84 39. . . . 18 28 40. . . 21 79 41 . . . . 14 76 42. . 7 03 43. 10 56 44. . 7 73 45. . 4 92 46. . . . 9 14 47. . . . . 53 43 48. . . 6 62 49 . . . 6 62 50. . . . 5 62 51. . . 17 58 62. . 13 71 53. . . . 18 88 64. . . 8 44 56 . 56. 67. 68 . 69. 60. 61 . 02. 64. 65. 66 . 67. 68. 69 . 70. 71. 72. 73. 74. 75. 76. 77 . 78. 79 . 80. 81. 42 18 28 12 27 00 14 76 39 37 11 26 9 84 23 20 16 17 9 49 8 44 12 66 10 72 10 90 6 33 5 27 8 44 9 84 5 62 7 38 12 48 11 07 5 98 9 03 10 90 8 26 82. 83. 84. 86. 86 . 87. 88. 89 . 90. 01 . 02 . 93. 04. 96 . 96 . 97 . 98. 99 . 100 . 101 . 102. 103 . 104. 105 . 106 . 107. 108. .10 90 .11 07 9 49 7 38 . 4 67 . 6 98 .52 34 7 03 . 7 73 6 62 .33 04 .32 34 .15 47 . 6 33 . 9 49 .17 58 .17 58 . 9 14 . 5 45 .12 83 .13 30 . 4 92 .15 11 . 6 62 .23 12 .11 96 7 03 Averas;6 108 samples, 516 tons Gatling ore, assayed by A. Thies, $13.37 gold per ton. Check assays, by Prof. Richards, of Boston, and GifiFord, of New York, 814.75. Average value Gatling ore. East vein, $14.06 per ton. _ Average sanjples, aggregating 63 tons Tuttle shaft. East vein, $24 88. Average samples, aggregating 12 tons, IVIiddle vein, $30.82. Allowing the proper proportion of ore-reserve to each of these shafts, the average assay value of the ore in reserves I find to be $18.65 in gold per ton. From these most exhaastive teats, the average gold con- tents of the ore were determined with great accuracy. Per- haps the most interesting and certainly one of the most important and valuable facts 'developed was the very remarkable uniformity of the gold yield of the ore. In only three instances -even of second-class ore after the richer ore had been roughly picked out — was less than five dollars per ton in gold found, and the highest assay of a five-ton lot was $53.43 per ton. Samples of a few hundred pounds have been found to run as high as $150 per ton, and hand samples very much higher ; but these were not considered as safe guides in valuing a mine, and were therefore rejected as exceptional. When I first commenced testing these mines, I was met with a vast array of dicta concerning the difficulties to be encountered in roasting, in amalgamating, or other- wise getting the gold out of' arsenical sulphurets of iron. It is fair to add, however, that these difficulties were always reported by persons who had not themselves worked such ores, but had "always understood" they existed. No satisfactory record of tests actually made with such ores being on record, so far as I knew, I determined to make history myself; and though in some particulars we have still very much to learn, the facts which were estab- lished may be of use to the profession, and I gladly com- municate them. As there could be no possible question about the facility of concentrating mispickel, with a specific gravity of about 6 or ^, from quartz and calc-spar, with a specific gravity of about 2J, we did not consider it necessary to build concentrating works to test that point ; and as there was no concentrator except a centre-discharge huddle taking all the ore as it came from the battery (with forty-mesh screens) without sizing, it was no matter of surprise that at times one-half of the gold was lost in the operation. That, however, was not so much a consideration with us_ as to determine points upon which knowledge was not obtainable. The ores were sampled in the manner mentioned above before going through the battery. After concentration, the concentrates from some two or three hundred tons were roasted in a muffle furnace, those from nearly six hundred tons in a reverberatory, and those from several hundred tons in a revolving cylinder. The results in all cases showed that these arsenical sulphurets roast with the greatest facility, and in much less time than simple pyrites, owing probably to the fact that the arsenic is volatilized at a much lower heat than the sulphur, and in escaping it leaves the ore m a measure porous, and therefore m suitable condition for oxidizing the sulphur. The consumption of fuel was far 10 greater in the reverberatory and muffle furnaces than in the revolving cylinder, where indeed one cord a day would roast ten tons of ore. There was no comparison, either, in the cost of labor in these different systems (in the revolving cylinder it was about 50 cents per ton), and our results give a very decided advantage to the automatic continuous cylin- der in the uniformity of the roast. It was found that ore which took one hour and three-quarters to pass through the cylinder was thoroughly roasted, so far, at least, as was necessary for amalgamation. The chief objection to the cylinder was in the amount of flue-dust made, and that in a somewhat less degree is also the objection to any hand- rabbled furnace. The arsenic fumes are very dense, and when aided by a rapid current of air, they easily carry over dust and gold. The question is not at all one of roasting the ore, for arsenical sulphurets roast much more easily, more quickly, and sinter less than simple sulphurets ; but the important question — the only practical difficulty found in the treatment of these ores — is that of preventing a loss of extremely fine gold, which is mechanically carried over with flue-dust and arsenic fumes. The cause of loss, though it will probably always exist to a greater or less extent, does not appear by any means insuperable; but oui: tests have thoroughly convinced us that, both on the score of expense and loss in flue-dust, no hand-rabbled furnace is admissible. The auto- matic continuous revolving furnace, known in the Western States as the White & Howell furnace, and in England as the Oxland, is entirely satisfactory so far as expense is con- cerned ; but without special precautions, it will make too much flue-dust. By taking out most of the shelves, or leaving only sufficient to turn over and not lift the ore (which when hot, runs like quicksand), the greater part of the loss which we encountered would, no doubt, be avoided. There are other modifications in the revolving, cylinder which have suggested themselves ; but as they have not been tried, they need not be mentioned here. In Philadelphia, a revolving hearth, with fixed rabbles, and with a preheating furnace forming the flue from the revolving hearth, has worked well, and undoubtedly made less dust than the cylinder. Of course, some of the gold which escapes is recovered by the re-treatment of the flue-dust ; but there would be still a loss, which should, and in a great measure undoubtedly can, be avoided. The roasted ore was found to amalgamate with the greatest possible facility, 80 and even 85 per cent, of the gold con- tained in the roasted ore being obtained in regular work and with a very slight loss of mercury. There is no flouring of the mercury, and the gold is bright and very readily amal- gamated. Some of the roasted ore was treated by chlorination under pressure (Mears's process), and practically nearly the fiill fire-assay was obtained. Even including the loss in flue dust in roasting in the revolving hearth, an ore which assayed less than $14 per ton yielded, net in the bullion, 91 per cent, of the fire-assay; so that it is thought that by care in roasting, from 93 to 95 per cent, of the gold in the con- centrates can be regularly obtained. That the loss in con- centrating will be very small, can be understood when it is considered that the concentration will not be made close. It is proposed to crush the ore in rock-breakers to from J to 1 inch size, screen in revolving screens which will size into say i to J inch and J to 1 inch, which would then be jigged, the richer ore going to rolls, and thence directly to the roasting furnace without concentration, and the poorer going to other rolls, where it is crushed, and then jigged. It is thought that from J to f of the sulphurets, and consequently of the gold, will be obtained in the coarse jigging, and will suffer no loss in concentration. Works have been built for the Canada Consolidated Gold Mining Company capable of treating from 100 tons to 125 tons a day. Without going into the cost of mining and milling these ores I may say that a number of experts, taking from the books the figures of cost of such work as has already been done at the mines, have estimated at from $3 to $8.50 per ton of ore, as it comes from the mines, the entire cost of mining and milling. This cost is made up about as follows : Mining, per ton of ore as mined, $1.75; concentrating, 50 cents; roasting, 20^60 cents per ton concentrates; chlorinating, 50=$2 per ton roasted concentrates ; con- tingencies, 55 cents ; — %3.50 per ton. Labor is paid $1 to 146 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. $1.25 per day; wood, $1.25 per cord; water-power will partly drive machinery. Supplies of all kinds are extremely abundant and cheap. The ore carries as an average between $18 and $19 per ton in gold, and assuming a net yield in bullion of only 80 per cent., the net profit on the treatment of these ores is estimated at from $10 to $12 per ton. — Compiled from a paper by U. P. Bothwell, M. E., Ph. B., Tf-aitsaclions Airterican Institute of Mitmig Engineers. THE MASS COPPER OF THE LAKE SUPE- RIOR MINES, AND THE METHOD OF MINING IT. THE occurrence of enormous masses of pure copper has given the mining district of Lake Superior world- wide reputation. The first masses brought from there excited great attention, and directed the notice of the mining world to the few particular mines from which they were taken. It may not now be generally known that nearly all the veins which are worked, and which cut across the trap ridge, contain mass copper, and that large masses are continually being raised from them. The largest con- tinuous mass which has been taken out was probably that from the Minnesota, in 1857, which is variously stated as weighing 420 tons and 470 tons. Its length was about 45 feet, its breadth or height 22 feet, and its greatest thickness 8 feet. All such masses are very irregular and ragged in their form and thickness, thinning out generally from a foot to a few'inches, and straggling through the vein until they connect with other large masses. This was the character of a mass found in the Phcenix Mine, one of the oldest on the lake, which mass altogether weighed some 600 tons. But this was really a series of masses more or less connected by strings of metal, yet no one large part of it weighed, singly, over 200 tons. A similar series of masses, weighing about 600 tons, was extracted from the Minnesota. Some of the Phcenix masses were four to five feet thick of solid copper. The Oliflf Mine has yielded masses weighing from 100 to 150 tons in one piece. One of 40 tons was taken out in 1879, besides numerous blocks weighing from 1 to 8 tons. This mine and the Central are now yielding mass copper in abundance. It is, of course, impossible to pick, or drill, or to break out such huge masses of solid metal when they are found, by drifting upon the course of the vein. The method of extraction is as follows : The miner picks out or excavates a narrow passage or chamber upon one side of the mass, laying it bare as far as possible over its whole surface. It is usually firmly held by its close union with the vein-stuff) or by its irregular projections above, below, and at the end. If it cannot then be dislodged by levers, the excavation of a chamber is commenced behind the mass, and this excava- tion is made large enough to receive from 5 to 20 or more kegs of powder. In one instance, the ChfT Mine, a charge of 21 kegs of powder threw down 200 tons of copper. Bags of sand are used for tamping, and the drift is closed up by a barricade of refuse and loose dirt. After such a blast the drift is, of course, charged with foul air, and it cannot safely be entered for hours afterwards. If entered too soon, men lose all strength in their limbs, and fall down. The huge masses of copper dislodged in this way are too large to be handled and got to the surface. They have to be cut up. The copper-cutters are called in, and the mass is marked off into squares or blocks of suitable size. Copper- cutting is a distinct art, and requires considerable skill and experience. Ordinary miners, however skilful they may be, cannot cut up copper without long training. The tools used are simply narrow chisels and striking hammers. The chisels are shaped like the parting-tool of turners. They are made of flat bars of half-inch steel, about two inches wide, and eighteen inches long. They are cham- fered each way like a cold chisel, to form the cutting edge. This ed^e is made a little longer than the thickness of the bar. The cutter holds the chisel, and two men strike it. A thin slice or chip of copper is in this way cut out in a narrow channel across the mass of copper. The operation is re- peated until the narrow cut, but little over half an inch wide, has been carried through tha mass. The chips cut out in this way are long, narrow strips of copper, only about half as long as the groove from which they are taken, the metal being condensed and thickened by the force of the blow. This work is necessarily slow and tedious, and it costs twelve dollars ($12) per square foot by contract. At this price the cutters make $2 per day. It is inconvenient to handle masses weighing over six tons. Such masses when hoisted are landed upon very strong platform trucks, and are then dumped in the rock-house upon a large pile of dry pine logs. When a considerable number of masses have accumulated, the logs are fired, and the whole pile is heated to redness, for the purpose of loosening the very considerable quantities of vein-stone which are inclosed in the ragged cavities. This vein-stone consists chiefly of calcite, and after cooling off' it is so much softened, that the greater portion can be knocked out by pounding upon the copper. The masses are then marked, numbered, and recorded, and are shipped to the smelting works, where they are melted down in reverberatories. — Compiled from a paper by Prof. Wm. P. Blake, Transactions American Institute of Mining Engineers. NOTES ON THE TREATMENT OF MERCURY IN NORTH CALIFORNIA. THE ores of mercury of North California are composed of metallic mercury and cinnabar. They are lound in serpentine, and are very often associated with chalcedony, in masses more or less irregular, often concentrated enough, however, to furnish ores yielding from three to ten per cent, and sometimes richer. This deposit makes its appearance in Vallejo where it has been worked. North of there the mines are more developed. Most of the quicksilver mines, however are situated in Sonoma and Napa Counties. On its outcrop the serpentine rocks have become decomposed, and have often been washed away to a consid- erable depth, so that in many cases in their neighborhood, what is apparently nothing but ordinary dirt, wiirfrequently contain from two to three per cent, of metallic -mercury, with but a trace of cinnabar, in which case, as at the Sonoma mine, it is made up into adobes and distilled. Such material does not require to be mixed with dirt to be made into adobes. Very often, also, the outcrop of the rock, where it is not decomposed, is filled with metallic mercury, so that by striking a pick into it, as at the Rattlesnake mine, a pound or more of mercury at a time will sometimes spurt out. Such rock as this is found in several localiiiesin every stage of impregnation, and usually makes very rich ore. There is generally, however, very little of it, and it is found only in the first workings ; the ore in depth is always cin- nabar. At the Rattlesnake mine near Pine Flat, where large _ quantities of metallic mercury are found, the rock contains so much petroleum that it has been necessary to niake special arrangements to burn the carbides of hydrogen, since the distillation of the petroleum causes an extra quantity of poor soot to be formed in the condensation- chambers. At the Geysers the ore is associated with large quantities of Eulphur and gypsum, so that in a hand speci- men there is often more sulphur than cinnabar, which is a serious impediment to working, especially for the modern style of furnace with iron condensers, and causes so much soot to be formed that it has been known to penetrate as far as the blower, and to so completely clog it as to prevent its revolution. The ore coming from the mine is more or less hand-picked. In one or two cases attempts have been made to treat the poorest, and especially the very fine ores, mechanically as at the California works. The apparatus used for the purpose is very rude, and the treatment does not seem to be very successful, as there is visibly a considerable loss in the tailings. Usually the fine ore is not concentrated; it is taken as it comes from the mine, mixed with dirt and made up into adobes, which have no regular size or weiglit, and treated in the furniice. The processes by which the ore is THE MINES, MINERS AND- MINING INTERESTS OF THE UNITED STATES. 147 treated are, first, the process by precipitation ; second, by roasting. The precipitation is done in retorts with lime, and consists of oxidizing the sulphur by means of an excess of air, and so producing sulphate of lime and free mercury. The roasting is done either in retorts, or in other furnaces which are not continuous, and in several styles of continuous furnaces. The reaction consists in volatilizing the sulphur and oxidizing it so as to produce free mercury and sulphuric acid, which, with the moisture of the fuel and ore is con- densed and allowed to run to waste. The furnaces which are not continuous are a modification of the old Idria fur- nace, which is used at Knoxville and at New Almaden in Sjuth California. Those which are continuous are the Luckhart, which is used at Sonoma, and which was being built at the Rattlesnake mine and elsewhere ; and the Knox furnace, which is in very .successful operation at the Red- ington, Manhattan, and the California mines, and elsewhere. There are a number of other varieties of furnaces, none of which, however, I saw. To these processes should be added the process of distillation, if the metallic mercury of the outcrops were found in sufficient quantities to warrant the ore being treated alone. This, however, has never been the case, and the small quantities that are found are charged in the furnace with the other ores, either as rock ore or as adobes. Very little effort is made to sort the ore, and this generally consists in a rough attempt at hand-picking. No assays of any kind are made. The fiirnace manager, or miner, judges by the eye that the ore contains one, two, three, ten, or twenty-five per cent., as the case may be, and hencj there is little faith to be placed in the statement of many of the advocates of different kinds of furnaces, that their furnace yields such and such a percentage of the assay value. The mercury produced is put up in iron flasks, which contain 76 J lbs. each, with an iron screw for a cork, and shipped. Irregular flasks, as they are called, contain less or more. Method of Distillation. — -At the American Mine, near Pine Flat, all the ore is crushed fine in an ordinary California stamp-mill, with a battery of ten stamps, which is run at a high velocity. It is then mixed with lime, and treated in retorts. The average yield of the ore is said to be two per cent. There are twelve retorts 9 feet long, 2 fset wide, and 18 inshes high in the middle. They are made of cast iron, and are D-shaped like the ordinary gas retort, and are ar- ranged in benches of three, the centre one being the highest, so that there are four fireplaces to the twelve retorts. The charge consists of 150 lbs. of crushed ore, to which ten per cent, of quicklime is added. This charge is introduced into the muffle in an iron spoon 6 feet long, 9 inches wide, and 6 inches deep. This is carried by three men, one taking the end, which has an iron handle 2 feet long, with a crossbar of wood of the same length. The middle is supported on an iron bar, curved in the middle to fit the shape of the spoon, with handles projecting 18 inches from the sides, and is carried by two men. This spoon is introduced into the muffle and shoved to its end. It is drawn out by short jerks, so as to leave the charge in the retort. The doors of the retort are then fastened by means of thumb-screws, and luted with wood ashes, and fired during four hours, when the charge is withdrawn. Not over 500 lbs. per retort is treated in twelve hours. The condensation pipes are m the back of the retort. A pipe, about 18 inches long, connects each retort with a vertical pipe about 5 inches long, which connects with a horizontal pipe 6 inches in diameter, placed in a water-tank at a lower level than the front of the furnace, and which receives the pipes of all the retorts. Every six retorts are so arranged that they discharge their condensed mercury through a siphon pipe. The soot is treated with lime as is usual. These works are new and carefully built. It is surprising to see works upon which no expense seems to have been spared, apparently put up to treat such very small quantities at a time of very lean ore by such a system; mt even the possible economy of the retort system seems to have been taken into account. There did not seem to be sufficient care taken with the condensation apparatus, tor the air for some distance fi-om the works was filled with mercurial vapors ; and though the workmen wore wet sponges over their mouths and noses, most of them were more or less salivated. I did not visit the mines; but any mine which would justify such carefully erected works with stamp-mills. would certainly justify the erection of other and less waste- ful furnaces. Method of Roasting'. — ^The method by roasting is the one which is the most extensively used, and all the mfierent varieties of furnaces are adapted to it. Those most in use are retorts, and the modified Idria furnace of the non-con- tinuous varieties, the Luckhart and the Knox furnace of the continuous ones. Non-Continuous Furnaces. — At the Missouri mine, near Pine Plat, the average yield of the ore is from one-half to 2 per oent. of mercury. The cinnabar is irregularly scat- tered through a chalcedony found in very irregular masses in serpentine ; the large pieces are crushed in a Blake's crusher to about 1 cubic inch in size. There are two benches of retorts, one containing two retorts and holding 250 pounds of charge at a time, and the other containing three retorts and holding 350 pounds, so that the small retorts treat 1000 and the large ones 2100 pounds in twenty-four hours. The " large retorts have been in use but a short time, and have consequently produced but little. The retorts are D-shaped, and are here 9 feet long, 12 inches high, and 18 inches wide on the bottom; they are charged every twelve hours by means of a shovel. At the Lost Ledge mine the same con- pany have three retorts which are only five feet in length, and have a capacity of 500 pounds, or 160 pounds each ; they are charged every four hours, and consequently treat 3000 pounds of ore in twenty-four hours. It takes three- quarters of an hour at the Missouri mine to discharge and charge the large retorts, and half an hour for the small ones, so that, as there is not much difference in the wear and tear, the large size retorts are the most advantageous. They are never filled full, as there would be danger that the pressure of the discharging vapors might force an exit through the luted joints. When the furnace is ready to be discharged the men cover their mouths and noses with wet sponges, tied on with bandages, and then remove the cover of the retorts. When they are about to be removed a little fan placed on the condensing pipes is set in motion to cause an aspiration through the retorts, so that no mercurial fumes escape. When the fumes cease to be dense the charge is drawn out of the retort with long hoes on to the floor in front of the furnace. The discharged ore is at a cherry-red heat, and, as it is not entirely free from mercury, a consider- able quantity of fumes are given oft" so that the precaution of using the bandage over the mouth and nose is indispensable. After the ore has all been raked out, it is carried as quickly as possible a short distance from the furnace and extin- guished with water, a new charge being put in in the mean- time. This is an exceedingly bad system, as the workmen are constantly exposed to fumes, more especially when water is scarce, since small quantities at a time thrown on the very hot ore seem to increase the quantity of fumes. The men, however, seem to know this, and take the necessary pre- cautions, as none of them were salivated. The product of the small retorts varies from 3 Ho 70 pounds of mercury in twenty-four hours. The large ones yield from 10 to 100 pounds. As the two benches of retorts are at some distance, each bench requires one man per shift of twelve hours, who is paid $3.75 a day. They burn 3^ cords of wood in twenty- four hours. Wood costs it 6 per cord, and labor $64 per month with board. Each retort is connected by a short joint, with a horizontal pipe leading to the condenser, which must be large enough to insure of its not being clogged by the soot. This pipe is of cast iron, and is 30 feet long and 6 inches in diameter. The pipes leading from the retorts, in the latest and best construction, come from the back, where there is plenty of room and they are not in the way, so that they can be large. Formerly they were made to gome from the front, where they were in the way of the worlcmen, and were constantly in danger of being damaged by the charge lying against them as it was drawn from the furnace. The condensing apparatus consists of two cast-iron boxes 3 feet by 2, and 2 feet high, turned down into cast-iron tanks, with inclined bottoms, which are covered with water. From the bottom of these tanks a wrought-iron pipe, curved in the shape of an S, is placed, with the arms sufiiciently long to counterbalance the pressure of the water, so that the mercury flows from it continuously. The mercury commences to flow two and one-half hours after the charge is put in. Between 148 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. the two cast-iron boxes, which are connected with each other, and on the main pipe, a small fan-blower is placed, and is made to suck out the vapors from the retorts, or when the condenser is to be cleaned into an exterior pipe. The fan is inclosed in a box 18 inches square, into which there is an opening 1 foot in diameter, closed with a hydraulic packing. The pipes and condensers are cleaned once a week. In the small furnace 140 pounds of soot and mercury together are collected ; this is put in a sheet-iron-pan, 8 feet long, 3 feet wide, 6 inches deep, inclined about 25°, which is not fixed, but is moved from place to place as convenience may require. The soot is placed at ite upper end, and is worked with a hoe for a quarter of an hour, to separate the free mercury. Three to five pounds of unslaked lime with- out water are then stirred into it. As the soot is already damp, the lime soon commences to slack ; it is left until it slacks entirely. No one goes near it for one-half or three- quarters of an hour, on account of the vapors arising from it. It is then worked with a hoe for three hours. About one barrel of lime, which costs $3 the barrel, is used per week for treating the soot. The mercury as it collects runs into the lower part of the pan, and is taken out with a ladle and put into flasks. The residue, which has twice the bulk which the soot originally had, is added to the next charge of the retorts, in addition to the charge of ore. Such a charge will produce about 10 pounds more mercury than usual. From 140 pounds of soot, 120 pounds of mercury are obtained directly, and about 10 pounds more from soot charged in the furnace. The large furnaces were run 10 days; 200 pounds were taken from the first condensers and pipes, and from 12 to 14 out of the second condenser. When there is only a small amount of soot to be treated, a small cast-iron sink 3 feet by 18 inches is used, the drain-hole being placed over an enamelled vessel 1 foot in diameter, and 6 inches deep. This vessel is used because ordinary kitchen utensils answer perfectly well, and can be had much cheaper than special apparatus, which would work no better. The expenses for twenty-four hours : 2 men at the retorts, . . Sl^ cords of wood, at $6, . Lime for soot, Crushing the ore two days, at $1.25 . . $6.50 . 21.00 . .60 . 2.50 There does not seem to be any real economy in using this retDrt system. The yield is not greater, nor is the cost of repairs and running less, while the risk of salivation is greater. There is certainly an economy of first installation, and this seems to be the only reason why such furnaces are used. With the high prices of quicksilver which have ruled during 1873 and most of 1874, every place where ores could be found has been worked, and as all the deposits are irregular and uncertain, the owners of such mines have not felt themselves justified in going to any greater expense. I saw no well-developed property, nor any property which appeared to have any future which was worked with retorts, except in a few instances, where the retorts were put up to have a yield while other furnaces were being erected on the property developed, or where the mines were evidently being worked with too small a capital. Modified Idria Furnace . — As an example of non-contin- uous working withshaft furnaces,! have selected the practice of the Eedington mine, with the old Idria furnace, which is by far the largest mercury works in North California. But as everything relating to this variety of furnace, which is des- tined in a few years to disappear altogether, is of interest, I have added some details relating to the New Almaden fur- nace of the same type, which I visited shortly after, although they are south of San Francisco. Great attention is being paid to the question of condensation, which is, perhaps, even more important than that of the furnace. The two questions are, however, intimately connected, and are en- gaging the most serious study of all persons interested in the metallurgy of mercury. At Knoxville, the Redington Quicksilver Company treat the ores from the Redington mine, which they own, in both the modified Idria furnaces, of which they have two, and also in the Knox furnaces, of which there are two working, and two in the course of construction ; besides these two others are to be built. The furnaces are situated at the mines and within a few feet of the ore shaft. The mine produces 700 to 800 tons of cinnabar per week. The ore occurs in a sand-rock, in serpentine. Much pure cinnabar is found, and a considerable quantity of high grade ore, but the average yield of the whole- mine is about 3 per cent. Metacinnabarite is found in considerable quantities in these mines. Epsomite, resulting from the decomposition of the serpentine, also occurs here in very large quantities, in acicular crystals over a foot long. The ore is largely asso- ciated with pyrites. About one-tenth of the ore comes from the open cut made in the side of the hill. From the mine the ore is thrown upon screens placed one over the other ; the upper screen is made of round iron bars 1 J- inches in diameter, placed 2 inches apart at the top, and 2i at the bottom. The screen itself is 5 feet wide at the top, 5 feet 6 inches at the bottom, and is eight feet long. Whatever passes over this screen only, is hand-picked. What passes through falls upon strong iron- wire screen of f-inch mesh. What goes over the second screen goes directly to the fur- nace, and is charged with the hand-picked ore ; what passtis through is treated as fine ore ; all the large pieces are broken by hand. Before the Knox furnace was introduced, the ore was dressed by hand up to 5 per cent. All the fine ore is mixed with dirt and made into adobes, which are sun-dried and stored, for use in the modified Idria furnaces exclusively. There is no generally adopted siz^e for the adobes. They are made in roughly constructed wooden frames, made by the workmen, which wear out rapidly. The usual sizes are 9x4x4 inches. When dry such adobes weigh 12 pounds. They are sometimes made 12 X 5 X 5 inches, which is a very large size. Such adobes weigh 18 pounds. The smaller size is the one most generally used. Seven men, at $2 per day, can make 6000 adobes. Each man can mould one thousand, but the six men require one man to loosen and moisten the dirt, and to mix the ore with it. Making the adobes costs, therefore, $2.33 the thous- and. The cost of the adobes delivered atthe furnace, ready for charging, including making, carting and storing, is $5 the thousand. The modified Idria furnaces (Fig. 1 ) are built one on each side of the condensers, which are at right angles to them. Each of these furnaces is capable of treating 100 tons of ore with 4000 to 5000 adobes per week. They are built of a porous sandstone, which is found a short distance from the works. Each furnace has a double fire-place, B, 20 inches in width, 17 feet long, and 15 feet higli, from the spring of the arch of the fireplace. The total inside height of the fireplace compartment is 20 feet. It has on the ore- chamber side a brick screen pierced with fourteen openings, the size of one brick, and two bricks apart, across the fur- nace, and fourteen openings in height, also two bricks apart. The fireplace wall has been repaired once in seven years. It is made of red brick, and is glazed by the heat. The ore chamber, C, is 13 feet by 10, and 20 feet high. Its walls are 4 feet thick. There are two ore discharge openings, 32 by 20 inches, on each side, at the bottom, which are four feet above the ground. The car for discharging the fiirnace runs under a swinging apron of cast iron, and the ore which has been treated is raked out over it. The fireplace and condenser walls are each mere screens of brickwork filled with holes, which are the starting-points of the flues, made in the charge. As the condenser side is constantly exposed to the acid vapors, it is the one most rapidly worn. It has been renewed twice in five years. It is now strengthened with an abutment. From constant use the inside walls round the ore-chamber have become worn away, making its present size somewhat larger than it originally was. Beyond the ore-chamber each furnace has two sandstone condensers, D, which are 4 feet wide, 13 feet long, and 20 feet high, in which very little material ever collects, never more than two flasks of mercury a week. In the drawing, Fig. 1, these furnace condensers are con- nected with the main condensing chambers, A, by the flues, E, which are supported upon arches, and which enter the top of the first chamber of the main condenser, A. The length of the flue between the furnace and the main con- denser is 8 feet and the furnaces are so arranged that each one may work independently into the condenser, the con- nection being cut oflT at will. The total length of each furnace, including the fireplace, ore-chamber, and two condensing chambers, is 36 feet, its total width is 17 feet. THE MINES, MINERS AND MINING INTEEESTS OF THE UNITED STATES. 149 total outside height 24 feet. The main condensers, A, con- sist of a series of twelve chambers, each of which is 4 feet wide, 20 feet long, and 20 feet high on the inside, contained in a structure at right angles to the furnaces, and which is common to both of them. Each one of these compartments has an iron door on each side on a level with the bottom of the chamber. The inside walls of the condensers are 1 foot thick, the outside 18 inches. They are braced on the out- side with wooden beams 8 x 10 inches, which are tied with |-inches round iron rods. These rods must be carefully watched, as they are likely to become corroded through, and allow the wall to fall, and thereby cause serious accident. The walls of these chambers are soon saturated with mercury, and become soft from the effects of the acid vapors. The stones are found corroded for a depth of six inches, and some of the interior walls have been corroded entirely through. Whenever they have been repaired with brick, it is found to be quite hard and to resist much better than the stone. The relation of the condensing surface of the con- densers to that of the charging compartment is much too small. The relation of the condensi ng volume to the volume of the furnace should be at least as 24 to 1. In this furnace, however, it is not more than one-half of that amount. This would make the chambers only large enough for one furnace. That the condensing capacity is not sufficient, is evident, from the fact that metallic mercury has supersaturated the stones, and still exudes in globules from the walls even after repeated cleaning. The flue leading to the chimney is also built of cut stone, and is 250 feet long. It is oval, 4 feet in the highest diameter inside, with walls 2 feet thick. It lies against the side hill. The chimney is built of stone, with walls 3 feet thick. It is conical, 5 feet in diameter at the base, and 50 feet high. The furnace is charged by a windlass from above. The ore is let down in iron buckets 3 feet in diameter, and 30 inches high. The adobes are let down in iron cages that hold 150 adobes, which weigh about a ton. This cage is 3 feet by 30 inches, and 2J feet high. The charging compart- ment is lined with adobes 2 to 5 thick, piled close, but not crowded. Inside of this the ore is placed in pieces from about the size of an egg to twice the size of the fist, in layers of four, 18 to 24 inches in thickness, then four to five chan- nels the size of an adobe are built over the ore. Their number depends on the size of the ore, five for fine ore, and four for coarse. These channels start in the opening of the fireplace screen, and end in the opening towards the con- densation-chamber. They answer the purpose of flues, and are necessary not only to provide a draft and to allow of the heat coming in contact with the ore, but also to prevent the charge from packing together. The poor soot, or that which has been worked, is charged on top of every layer of ore. A new layer of ore is then put in, and so on, until the chamber is nearly full. A layer of fine ore and poor soot is placed near the top, and this is covered over with clay and straw. The compartments are closed with cast-iron pans, which are filled with water, the joints between the pans and against the masonry being made tight with ashes or cement. These pans are lOJ feet long, 4} feet wide, 5 inches deep. The cold water flows constantly from an inch pipe into the pan nearest the fireplace. A spout from every pan carries the water to the next pan, so that they are always full. Each pan is provided with two eyes at the sides for their removal when it is necessary to recharge the furnace. One furnace is charged on Monday, and is fired Monday night, and is kept burning until Thursday morning. During this time two cords of wood are burned to each furnace. The sulphur, to a great extent, answers for fuel, for there is always an excess of sulphur in the shape of pyrites in the ore. The other furnace is charged on Tuesday, and is fired Tuesday evening, and kept burning until Friday. One flirnace will thus be cooling on Saturday and Sunday, and the other on Sunday and Monday. A little mercury commences to run in D on Tuesday, and in the 1st, 2d, and 3d compartments of the main condenser. It runs most freely Wednesday and Thursday. By Thursday the mercury condenses quite in the end of the condenser, but only in very small quantities ; 150 sometimes 200, flasks are collected from both furnaces during the week ; most of it comes from the 5th and 6th condensers. On Wednesday it commences in the 5th and 6th and runs from here continually until the furnace is dis- charged. The most of the mercury is obtained when the furnace is cooling down. When the draft is good and the ore moderately rich the yield will not be less than 200 flasks a week. The bottoms of the condensing chambers were originally built inclined towards the centre, as is shown in the lower part, Fig. 2, with the intention of having all the mercury in all the condensers run out through a common opening made for the purpose, but the openings in- the partition walls of the condensing-chambers very soon became clogged, and so much mercury was absorbed in the masonry that this was shortly abandoned. The present disposition is iron pans, sloping from the centre toward the outside, as is shown in the upper part. Fig. 2, which are placed three feet above the furnace bottom of the old construction, which has not been altered, so that there is a space of considerable size under the bottom of the pans. The pans are made in three pieces, which overlap each other. This is especially neces- sary, as when the walls get old and fall, the whole pan would then be liable to be broken. Tiles placed upon the top of the pans to protect them, have been used with good effect. The castings with this protection have lasted already four years, and are seemingly perfect. The cast iron with- out the tiles lasts only two years, at which time it is cor- roded by the sulphuric acid, which condenses from the furnace. On Saturday the iron doors at the bottom of the conden- sation chambers are taken off) and a workman with a long hoe collects the soot on the pan, and that from the walls, about two feet above the bottom of the pan ; what is higher up on the wall is left to collect there until it falls of its own weight. Seventy-five to 100 bushels of soot are collected in buckets every week from the bottom of the condensing chambers, which yields from five to twenty flasks of mer- cury. This soot is a mechanical mixture composed of or- dinary soot, condensed from the smoke of the fuel, ashes, dust, and dirt, carried over from the ore, volatilized cinna- bar, and sublimated mercury in very fine globules. It is usually taken from the condenser damp, owing to the con- densation of steam from the moisture in the fuel and ore, and the acid vapors. This soot is removed in buckets, fourteen inches in diameter at the bottom, thirty at the top, and thirty-three inches high. Two such buckets, filled one foot high, are taken from each side of the condenser. Sometimes as many as eight, and sometimes not as many, are taken. It takes two men two days to clean out and work the soot from all the five condensers in an ordinary working of the furnace. The amount collected is very variable. When, for any reason, such as a stoppage for repairs, the furnace cools, a large quantity of soot becomes detached at the time the fiirnace is lit. The amount of mercuiy col- lected from the soot varies from five to twenty flasks a week. The flue leading to the chimney is cleaned once in two or three weeks ; about one bushel of soot is taken from it. This is not kept separate, but is mixed with that taken from the condensers. It takes ten men one day to charge each furnace, and six men one day to discharge it. The six men are paid about $85 per month and board, making about $1.90 a day. There is a fireman and one man to clean and repair the flasks and fill them. They work during the day only. Each shift of twelve hours has its own foreman. This does not include the men working up the soot. When the draft is not good afire is placed at the foot of the chim- ney, which is fifty feet high, to increase the draft. The draft depends for the most part upon the way the furnace has been charged, but is sometimes due to the direction of the wind. This draft furnace is oftenest used when the fur- nace has been allowed to get cool. Not a cord of wood per month is required for this purpose. In winter, fall, and spring there is no trace of mercury in the flue, but when the weather is hot it collects inside, near the top of ihe chimney, which is provided with a ladder in order to make any observations on the escape of gases at the top which may be desirable. When the furnace is out of repair in very hot summer weather, it is apparent that some mercury escapes. The joints of the furnace are made so tight that no accident arises from salivation except through the care- lessness of the men. As soon as the workmen experience any sensitiveness about the mouth they are instructed to go to the office, and are there furnished with a mouth-wash, 150 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. consisting of two parts of cinchona, one part tincture of myrrli, and three parts water, but no case of real salivation, except from the carelessness of the men, has occurred in a great many years. Twice in a year a general clean-up is made. This is done by putting iron pipes, twenty-four inches in diameter in compartment D, and three in the flues leading to the chim- neys, both to hasten the cooling and ventilate them while they are being cleaned. The walls of the condensers are cleaned by scraping. On account of the dust arising from the falling soot, it is necessary, when this work is done, for the men to wear a wet sponge over the mouth and nose, which is covered with a thin cloth, tied behind the head. At this work the men relieve each other every fifteen minutes. After scraping, the walls are thoroughly washed. It takes eight men two days to scrape and wash the walls, flues, and condensers. The soot so detached contains a large amount of mercury. From such a general clean-up as many as one hundred flasks have been collected. The soot in the first condenser is often six inches thick in concretions. It is here hard and solid, but in the other condensers it is soft and light. The light soot upon the walls is of very variable thickness, but is rarely less than one to two inches thick. It sometimes reaches as high as six inches after a long run without cleaning. When there is very rich soot it may often be as thick as six inches on the bottom of the iron pan. The soot is richest in the fourth, fifth, and sixth con- densers, but it is always very evenly distributed. In all the compartments in the space below the iron pans, a hard con- crete, consisting of hardened soot and mercury in globules, is found. The furnaces with the condensers cost originally between $100,000 and 1125,000 ; they have been built eight years, and have been repaired three times, parts of six partition walls having fallen down at the flue end. At the furnace end the wall is good. The walls after having been scraped and washed every day for a month still showed mercury in globules all over them, a few hours after they became exposed to the heat of the sun. All the stone taken out of the condensation-chambers during repairs is carefully preserved and is treated as very rich ore. The first time that the furnace was charged the ore was picked. At the top of the charge, over the rich ore, 6 to 7 feet of rich soot were put in, but the heat did not reach it. The charge being unusually rich, should have yielded five hundred flasks of mercury, but all but nine flasks of it were absorbed by the walls. This furnace has been definitely abandoned at Knoxville. The masonry has been altered into Liver- more's inclined continuous furnace, which is adapted to treat fine ores, and since its introduction, in the earlier part of 1875, no adobes are made. The cost of altering the furnace was only $1200. Average cost per- week of reducing 1 ton of ore in the modified Idria furnace, at the Redington mine, furnaces Nos. 1 and 2, in 1874 : 5}4 cords of wood at $5, $27.50 .Sfl days, fnrnaeeman, fireman, and his assistant, . . 8G.00 20 days, laborers charging furnace . 38,00 12 days, laborers discharging furnace, . 23.15 8 days, laborers working soot, . . 14.55 8 days fireman, . . . 14.55 9000 adobes at $5 per thousand, ... . . . 45.00 Total charge of 200 tons cost, . . , . . $240.3', Average cost per ton for reduction , . 81.25 New Almaden Works. — At New Almaden, the Quicksilver Mining Company have six furnaces of the modified Idria type, built of brick, which produced in the year 1874, 11,042 flasks of 76} pounds each, or 920 flasks per month. Four of these have a capacity of 50 tons, one a capacity of 70, and one 100 tons of ore a week. They run a week, so that each furnace makes four charges a month. Each furnace has from sixteen to twenty-two brick conden- sing-chambers, the numbers varying with its ore capacity. The bottom of the chambers inclines from the centre toward the doors. The floor is built of brick, and is covered with cement. Besides the brick condensers, each furnace has four or five wooden condensers, which are 26 feet long, 14 feet wide, 20 feet high, divided into six compartments of equal size. As the result of the addition of these wooden chambers, one of the flues, which formerly yielded in the general clean-up from 60 to 100 flasks of mercury, yielded in the year 1873 only two flasks, and the largest part of this was found near the outlet from the condensers, and no signs of metal were found further on. It is the present intention to cut up the blocks of brick condensers by taking down the outside wall of one or more compartments, and making the dividing walls the exterior walls of the new structure. The former condensers will thus be divided into three or more separate buildings. A much larger radiating surface being exposed in this way, it is expected that the condensation will be much more perfect. Adobes 10 x 4J x 4J inches in size, made of the fine ore mixed with dirt, are placed over the floor of the ore-chamber, one adobe thick the entire height of the sides ; ore is then put 2J to 3 feet in thickness, then a layer of adobes, in which five flues from one side to the other of the furnace are made, and then ore, and so on to the top. The top is covered with a layer of adobes, and then a layer of straw two or three inches thick, and then ordinary clay and mud, to make it even with the top, and over this ashes. Any cracks that may occur are filled in with ashes. When the furnace is filled, one-third of the charge will be adobes; sometimes the furnace is run on adobes alone. It takes six men one day to charge the furnace. It takes one man part of twelve hours to keep up the fire. It takes four men one day to discharge it. The charging is done by the company, as it must be carefully done, but the discharging, as it requires no supervision, is done by contract. The fire is kept up ninety-six hours, and during this time eighteen cords of wood are burned for 100 tons of ore. The wood costs from four to six dollars a cord. The ore is dis- charged twelve hours after the fire is drawn ; twenty-four hours afterwards the soot is taken out. The mercury commences to condense fourteen to sixteen hours after the furnace is lit. If the ore is very rich it sometimes commences to condense in eight hours. It ap- pears first in condenser No. 1. In Nos. 1, 2, 3, 4, and 5, it loins for ten hours ; after this it runs in Nos. 3, 4, 5, 6, 7. It ap- pears in No. 7 on the second day, after which it ceases to run in the first four condensers, but continues to run in all the others. The greater part collects in Nos. 9, 10, and 11. Before the fire is drawn, half of all the mercury is condens- ed, which is in about forty hours, gradually diminishing until it ceases to condense. A small amount of mercury still runs, however, the flow being kept up by the dripping from the walls. From the bottom of each of the condens- ers there are small pipes leading into an outside trough, to allow any mercury that forms to run immediately into the gutter, from which it is discharged into the reception basin. The iron doors which close the entrance to the brick con- densers have been given up, except for the first four or five chambers, and are now replaced by ordinary glass window- frames 3x3 feet, with six panes of glass. It is found that there is a material difference in the condensation since they have been adopted. The condensers made of wood and glass, which were patented in May, 1874, are in successful operation here. They are certainly much cheaper, and it would seem a much better condenser, and less likely to get out of repair than the iron ones used elsewhere. This kind of condenser requires no water, and is, therefore, applicable everywhere. The want of water in many places in Califor- nia is often a serious drawback to the working of the ores. Four such condensers are at work at New Almaden. Each one has a volume of 2640 cubic feet, and 1196 square feet of condensing surface, or altogether 10,560 cubic feet volume, and 4784 square feet of surface. They cn:it only $1500, which is the smallest cost for any such amount of condens- ing surface known. If they work as well as they promise they will take the place at least of half the iron or brick condensers. The soot is collected in the same way as at Knoxville. That collected from four charges gave 18 flasks of mercury. The same four charges produced 474 flasks. The soot condenses in all the condensers from No. 4 on; the most of it collects in 10, 12, and 14, or about in the middle. On an average .aboutalime-barrelful per week is collected from each con- denser. One man does the whole cleaning up. The soot was formerly on an inclined plane, and stirred and slightly rubbed with a wooden hoe. A certain quantity of quick- silver separated and ran out into a vessel prepared for it, but left a very large quantity still remaining in the soot, which THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 151 was afterwards treated with lime. This method, which is in general use and takes a great deal of time, has been given up here. The soot is now put into a hemispherical boiler about 3 feet in diameter; it is mixed with boiling water from a vertical boiler, used for this purpose only. About half of the bulk of soot is added in wood-ashes, and the whole thoroughly stirred with an iron hoe for three-quarters of an hour, when the separation is Qomplete. It is then allowed to remain an hour and settle, and during this time another boiler is worked. The mercury collects in the bot- tom of the vessel, and flows out of a siphon-shaped pipe, so that only the pure mercury is discharged. The water is drawn oiT afterwards, and the soot remaining behind is thrown into a heap, and when dry is placed upon the top of the furnace near the flue where the flame passes, as it still contains some sulphur. It is claimed that all the mercury in the soot is separated in this way and with much less labor than by the former method. This process was patented October 4th, 1873. It takes one man, working ten hours, four to five days to work the soot of six furnaces. The fuel used here is wood, or ordinary charcoal made from oak, or a mixture of char- coal and ooke. It requires 75 lbs. of coke and charcoal mix- ed to 3000 lbs. of ore and adobes, or equal quantities in bulk. This furnace, as used here and at Knoxville, must be considered as a very great improvement on the old Idria furnaces, as there are no arches in the ore-chamber which are likely to break down without warning. The method of charging large and small ores and arrang- ing air-channels by means of adobes prevents the charge from packing, and gives all the space which is required for the circulation of the air and heat, and allows of using a poorer ore than could be otherwise used. The labor of making the adobes, which is, however, only $5 the thousand, must be regarded as a necessary expense, as the furnace could not be run without them ; as the expense of making the air-channels of large pieces of ore would be too great, and there would be no certainty that they would last if so made. The adobes, however, do not change their form, and the air-channels once made remain as they were made in the charge. The making of adobes is, however, one of the expenses to be avoided in the furnace of the future, and the most careful attention now being given to the construction of furnaces which will allow of the fine ore being treated as it comes from the screens. Although this furnace, with its expensive, cumbersome method of condensation, is a great improvement on the old Idria furnace, it is destined to dis- appear, and in a few years will probably be cited as one of the curiosities of metallurgical history. Continuous Furnaces.— The continuous furnaces m use are all of them shaft furnaces, which do not differ es- sentially in the principles of their construction, though there are wide differences of detail, which are more or less essential. The California practice is essentially different from that of other countries, in that all of these furnaces are provided with fans placed bevond the condensing apparatus, which not only do away with the necessity of high chimneys, but give such an absolute control of the draft that there is no fear of the fumes escaping. The draft is always toward the interior of the furnace, so that even if an aperture m the furnace or the condensing apparatus should remain open, no fumes escape, and consequently cases of salivation are very rare. As the velocity of the fan can always be changed, the draft can be regulated at will to suit either the wording of the furnace, or the irregularities of the weather, ihe furnace is of less consequence than the condensation ap- paratus, though its aim should always be to extract the naetal at the lowest possible temperature, and to require the least possible preparation of the ore. It is consequently on the condensation apparatus rather than on the furnace that the greatest number of experiments have been made ; Providing that the furnaces are continuous, the one which has the best condensation apparatus will be the best. There are a num- ber of these furnaces used in California, all of which I believe are patented. I saw, however, but two of them, the l^uck- hart and the Knox, working. . . „ Luokhart Furnace.— The Luckhart furnace is, in all respects, similar to the Swedish ftxrnace for roasting iron ores. It consists of a shaft with a fire-box, with openings in the two sides only, which goes through the furnace from one side to the other. It is covered with a cast-iron rouf slanting from the centre towards both sides of the furnace, so that the charge is divided as it passes down, and the heat is also divided as it passes up. The sides of the furnace are pierced with holes to observe what is passing in its interior, and to watch the progress of the charge. The discbarge door is sufficiently far below the grate to insure the ore remaining long enough in the furnace to have all of its volatile contents distilled, and to be sufficiently cool to be discharged with perfect safety into an open wagon at the bottom. By this system, which is common to all the continuous furnaces, the inconveniences arising from the discharge of hot ore .not entirely worked are avoided. The Luckhart furnace used at the Sonoma mine, is capable of treating 15 to 18 tons of ore and adobes a day. The richest ore treated has not con- tained over 10 per cent. The serpentine containing the mercury crops out near the furnace, and is verj' much de- composed. The rock is soft and crumbly, and where it is exposed to the weather, its ddbris has been washed away so that the soil for some distance from the outcrop is com- posed of its detritus, more or less mixed with free mercury, and a very little undecomposed cinnabar. Where the rock has been mined so as to reach the undecomposed parts of it, it is found to contain in the upper portions more or less free mercury mixed with the cinnabar, but nine-tenths of all the ore treated consist of dirt taken from the surface of the ground, which is made into adobes by Chinamen. The adobes contain from one-quarter to one-half per cent. The rock does not contain more than one and a half per cent. The adobes are made by mixing the earth with water to a thick paste, and then putting it into wooden moulds 5 by 4} inches, and 4 inches high. The thick mud is simply placed in a frame containing 8 of these moulds, patted with a shovel, the wooden frame drawn up, and the adobes left to dry in the sun ; it takes about two days to dry them. When ready for use, they weigh about eight pounds each, and are a little larger than an ordinary brick. One China- man can make a thousand in a day. The men are paid $1.25, and find themselves It takes two Chinamen, at H.25, to pick as much dirt as six men can use for making adobes. The furnace is charged by means of a circular hopper 22 inches in diameter, and 26 deep ; 5 to 6 of these hoppers full make a charge, and 5 such charges make a ton. The hopper is covered over with a hydraulic cover for safety, but even when it is off, the draft is so strong that there is no discharge of mercurial vapors from the top of the furnace, as I assured myself by removing the cover and having the charge wilh- drawn below the hopper. The furnace consumes one and a half cords of wood a day, which comprises all the fuel used in the works. The wood is usually oak, and is worth $3 a cord. About 15 tons of ore a day are treated. Most of the ore is discharged from the bottom of the furnace black, some of the last of a discharge is occasionally red-hot; it is drawn about every hour and a quarter into iron wagons, which hold about half a ton. There are 7 men engaged in making adobes, and there is one Chinaman and one en- gineer on each shift of twelve hours at the furnace; the Chinaman is paid $1.50, and finds himself, the engineer is paid $65 a month. The engineer helps the Chinaman, who draws the charge and dumps it, and charges the furnace and puts in the fuel. In addition to the two helpers, there is one man engaged continually in chopping wood. The total cost of treating the ore is one dollar per ton. The condensing apparatus consists of three sheet-iron cylinders five feet apart, which are 14 feet high, six feet in diameter. The vapors pass from the furnace through a pipe about 20 feet long, in at the top, and out at the bottom of the condenser. A blower is placed just beyond the last condenser, which is three feet in diameter, and makes 100 to 120 revolutions a minute. If there is much fine stuff not made into adobes charged into the furnace, it must be run faster. The engine used is twelve horse-power, but six would answer for a single furnace. Just beyond it is a wooden box, six feet high, 12 feet long, and eight feet wide, into which the blower discharges. This box has a partition in the cen- tre, which goes to within two feet of the bottom, to break the current. From this box there is a flue two feet square, and 100 feet long, ending in a wooden chimney 20 feet high. Around the top of the condensing cylinders there is a lead pipe one inch in diameter, pierced with small holes about 152 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. three inches apart. When there is a plenty of water it is allowed to flow continuously from this pipe, and discharges itself over the outside of the cylinder, thus cooling it. When there is a lack of water it is allowed to flow only over the last condenser. The pipes which connect the cylinders have in their interior a partition about two feet long, and on them a considerable amount of soot collects. The bottom of the cylinders incline towards the centre, and from here a pipe leads to an iron kettle on the outside two feet in diameter, which is kept constantly full of water. A large quantity of soot collects on the sides of the condensing apparatus. A little of it constantly falls, and is washed out into the iron basin by the condensed moisture, which is but slightly acid, as there is but little cinnabar in the ore. About one flask of mercury a day is collected from the first two condensers. About one-half of this comes from the second. From the third about a flask a month is collected. The cylinders are provided with doors, and the furnace is stopped once in three weeks to clean out the soot, which is collected in kettles. About ten flasks of mercury will collect from the soot after some stirring ; the rest is put into an iron pan, nine feet by three, with a gutter in the centre. The pan is set at an angle of 20^, and gently heated to about 120° F. ; it is then mixed with lime or ashes and stirred. The mer- cury flows readily from it, and about 70 per cent, of its mercury contents is collected in this way. The rest is made into adobes and treated in the furnace. The more or less acid water which is constantly flowing into the basin outside of the condenser, as it runs off carries away some light mer- cury and soot. This is conducted to a wooden tank, 12 feet long, six feet wide, and four feet deep, where it collects and gives a product which contains considerable mercury, which is treated as soot. The soot comes from the basins, the wooden tanks, and sometimes a very little is taken from the blower cylinders. This soot gets poorer as it is further from the furnace. The richest contains 60 per cent, of mercury and the poorest about 3. The product of the works is about 25 to 50 flasks of mercury a month. The condensation at these works seemed nearly perfect. The manager stated to me that he had exposed a |20 gold piece for six weeks from the top of the wooden chimney, and that he not only found it there at the end of that time, but entirely unaffected by mercury. There is so little sulphur in the ore that the sheet iron does not seem to have been acted upon to any great ex- tent. With this system of high cylinders with a bottom converging towards the centre, there seems to be but little opportunity for the action of the acid, and with a thick cast- iron bottom there seems to be no reason why it should not answer quite well. It would seem, however, that a few large compartments could not give as good results as a greater number of smaller ones, as a perfect condensation requires a maximum of surface, and does not depend so directly upon volume, though the amount of soot and mercury collected in the wooden box and in the last condenser here seem to show that in this ca^e, at least, owing probably to the very small product of the furnace, the condensation was quite perfect. Knox Purnaoe.— At Knoxville, beside the Idria fur- naces, there were, in August, 1874, at the Redington mine, two Knox furnaces in the course of construction, and two in work, which treated 25 tons of ore each in twenty-four hours, and have been running since January, 1874. During the years 1874 and 1875, two other furnaces have been con- structed, making six in all, which treat together from 900 to 1000 tons of ore a week. Before the use of these Knox fur- naces, and while the modified Idria furnaces were the only ones in use at these works, all the ore had to be dressed up to five per cent. Now ore yielding not more than 1 to 1^ per cent, as it comes from the mine, is treated, and Mr. Knox claims that he can treat profitably ore containing not more than i per cent. A furnace about to be constructed is to be adapted to treat fine ore exclusively, and it is expected, if this furnace works successfully, to give up making adobes altogether and treat the fine ore here, and if the modified Idria furnaces are still retained, to treat in them only the large and medium-sized ores. The Knox furnace(Fig3. 1,3,4 and 5) is a shaft furnace with a fireplace upon the side. The total height of the furnace is 39 feet. The bottom of the fireplace is 17 feet 6 inches from the bottom of the furnace, so that the fire itself is about in the middle of the shaft. The furnace is rectangular in shape. At the top it is two feet square ; it continues for two feet at this size, and then widens out on one side, until at the depth of four feet it attains the width of seven feet. While in the other direction it continues straight for a depth of ten feet, and then increases gradually until it becomes seven feet at the fireplace. At this point there are two chambers, Z and Z', Fig. 5, arranged in the masonry, on one side for the fireplace, and on the other, the space for the in- troduction of the pipe U', which carries off" the fumes. At this point, which is 17 feet 6 inches from the top, there commence a series of six retreating arches, which support the masonry of the furnace, four of which retreat two feet six inches on either side. The two others which are above are much smaller, and reach to within three feet of the top of the furnace. At the fireplace the furnace is seven feet square. The shaft continues to the bottom on the fireplace side of the same size. On the other side it contracts equally upon both sides, so that at the bottom, X Y, where the ore discharges, the width is only two feet. The fireplace follows the retreating arches with a width of 36 inches to the top of the second arch, and then diminishes to 30 at the top of the third, and continues so to within 3 ft. 6 in. of the top of the furnace. Between each of these arches, on both sides of the furnace, there are openings six inches wide, and the whole width of the arch. The aspiration of the blower draws the flame from the fireplace Z to the chamber Z' on the opposite side. The heat of the fire- place is always sufficient to keep it at a dull-red. This con- struction of the fireplace is far too complicated. These retreating arches are liable to be worn by the ore, though not very rapidly, but are quite rapidly affected by the fire and the gases. Exactly the same effect might be brought about by the much simpler construction of having the fire- place entirely outside of the furnace. As originally con- structed the furnace was quite different. It was 24x42 inches at the top, and continued for two feet at this size and then gradually widened by a curve upon one side until at a depth of seven feet from top it was seven feet six inches wide ; it continued to the bottom of the fireplace at this width, and then gradually diminished until it was two feet at the discharge. On the other side, at a depth of two feet from the top, it widened to three feet, and continued at this width to the top of the arch, then followed the retreating arches down to the bottom of the fireplace, where it was seven feet, and continued at this size to the discharge. There were only three openings between the arches, and it - was found that this was insuflBcient, and the two small arches above were introduced to increase the heat and at- tack the ore higher up. The fireplace is so arranged that it receives air which enters at the bottom of the furnace and passes round it through a series of channels Y, so that before entering the fireplace, il is heated by the walls of the furnace, and thus effects a small saving in fuel, so that the furnace may be said to be in some respects a hot-air furnace. The masonry of the furnace was formerly made six feet thick, and it is now made eight feet. It is braced by ten large wooden beams, which are held together by iron bolts, and as the furnace is double, are strengthened by three up- rights of the same size, also clamped together by bolts which pass entirely through the masonry furnace. By the en- largement of the furnace in the centre the ore as it comes to the point where it is to receive the highest temperature is made suddenly to spread out, so that each particle of it comes in contact with heat, and is in no danger of fusing. The flames are made to traverse through the six openings between the arches, which are six inches in height, to the chamber on the opposite side of the furnace, into which all the fumes are carried by the draft. The cubic contents of the furnace are calculated in such a way as to be capable of containing about 75 tons of ore, but as only one ton of treated ore is drawn from the bottom of the furnace every hour its capacity is 24 tons in twenty-four hours, so that every ton of ore will remain in the furnace at least three days. When, however, the proportion of very fine ore becomes large, or when the ore is wet, the amount that can be treated in twenty-four hdure will be reduced to 12 to 16 tons per day. In the case of a large quantity of fine ore it is jjroposed to remedy this to some extent by charging wood in small pieces with the ore. This serves to Missing Page THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 153 some extent the purpose of keeping the ore opeu, so as to allow free passage to the heat through the ore, and at the same time creates a source of heat within the charge, so that it will be partially dried, and not pack as it comes down in front of the fireplace. The chamber for the outlet of the vapor is underlaid with a very heavy cast-iron plate, in order to prevent any possible condensation or absorption of the vapor at that point. The .pipe U' for the outlet of gas is made of cast-iron, is 18 inches in diameter, sixteen feet in height, as it enters the condensation-chambers U. It pro- ject two feet from the furnace before it turns down ; at the elbow there is a man-hole for cleaning the pipe. Just above the outlet pipe a cast-iron door is arranged, so as to observe, what is passing in the interior of the furnace on the side. Two of tne furnaces were built in one structure on account of economy in constructing and running them. They are charged with two-thirds to three-quarters me- dium, and one half to one quarter of fine ore. Adobes are never used in these furnaces. The charge is introduced by means of an automatic iron wagon, which contains 18 cubic feet of ore, which is equiv- alent to about a ton when it is moderately heaped. If the ore is very light, however, the amount contained may be somewhat less than this. When the capacity of the furnace is given in tons, that number of carloads is intended to be expressed. The wagon runs upon rails, and is shoved by the charger to the top of the furnace, where the rim of the wagon first strikes a lever attached to a wire rope, which supports the cover of the furnace, which throws off the cover, then a projection on the body of the wagon throws it to one side. The workman then pulls out a pin in the wagon, which discharges the ore into the furnace. As soon as the ore is discharged the weight of the furnace top and lever drives the car back, when the cover drops and closes the furnace. The weight of the charge holds the wagon in place only long enough for the car to empty itself. The workman shoves the empty car back far enough to be out of the way, covers the furnace top with ashes, and prepares a new charge. There are fifteen men breaking and sorting the ore, but one man does the whole charging for both furnaces. The fuel used here and at the Manhattan works is the most ordinary oak brush, which is cut by the company and brought one-quarter of a mile. It costs about $4 a load, which is supposed to be equal to about a cord of good wood. The reason for the use of brushwood is, that during the fommer an unlimited supply of it can be had at a short distance from the furnace, both at the Manhattan works and at Knoxville. It is much more easily cut and carried than wood, and it is a cheap fuel in the summer. As this supply fails in the winter, and teaming is more difficult, wood is used at this season. A sheet-iron trough, 3 feet long and 2 feet square, is hung before the fireplace door. This trough is made to fit the fireplace door, which is counterbalanced and rises vertically. The brush is cut to the length ot the trough and is packed into it with a pitchfork, the fireplace door is then raised, and the brush shoved in with the fork This brush is used green, immediately after cutting. It flames very readilv and makes a quick hot fire, it is charged about every half hour. It takes 2 J cords of good wood to do the work of the furnace in twenty-four hours, or two loads of brush, which are considered as weighing one ton. The wood is a mixture of white and lije oak, and costs $5 a cord delivered at the furnace. A ton of the brush- wood costs $5, and is sufiicient to treat about 24 tons of ore The fireman draws the ore that has been treated and takes care of the furnace. The charge is drawn from a long narrow door X in the lower part ot the fiirnace, 15 feet below the level of the fireplace and on the side next to it. Ihe door is raised by a tackle, and is counterpoised. The dis- charge is eflTecte-d by means of a hoe and a rake, attached to handles 12 to 14 feet in length made "^ "^;=1^ P'P% ^he discharging car is of iron, and is half the length of the door, ft ii rolled to one side of the opening and stopped with the handle of the rake, so as to be exactly oPPo^ite the Ind of the door. The ore, which is black, though not cold is drawn into it from one side of the charging door until the wagonTs half full, it is then rolled to the other side and fillfd from there. By the time the car is Ml the red-hot ore Sppeari The car holds one ton of fiilly treated ore. One load is drawn every hour from each furnace. The furnace is charged above as soon as the charge is drawn. It is done by the same men who also attend to the fire. Each furnace requires two men and an aid per shift, so that a single fiirnace requires six men to treat 24 tons in 24 hours. A double furnace requires only 8 men, who treat 5 tons in 24 hours. To run four furnaces, standing as in Plate VIII, requires 10 men to treat 100 tons in 24 hours. It therefore requires one day's labor to treat 4 tons, 6 tons, or 10 tons in 24 hours, showing a gain of twice and a half on all the labor by increasing the number of furnaces to four. One engine and boiler will do all the work of four furnaces, and three or four cords of wood is sufficient both to burn the ore and to keep up steam to run the blowers. The draft in the furnace is produced by four Root's blowers, E, F, G, H, placed at the extremity of the con- densing-chambers. The bottoms of the condensers U are inclined at an angle of from 16° to 20°. They are joined, as is shown in the drawings, at the top by means of curved iron pipes U'- There are sixteen to each furnace as at present constructed. It is proposed, however, to have four sets of eleven, two sets of ten, and six out of line, making twenty-two in all, or eighteen for each, when the four fur- naces are finished. These condensers are 8 feet long, 2 feet 6 inches wide, and 5 feet high at one end and 6 feet at the other. They are set on wooden frames on a cement floor. The first condenser of the series nearest the furnace is set 30 inches, and the last one 37 inches above the ground. Commencing with the next series, the first one farthest from the furnace is 40 inches, and the last one of this series, nearest to the furnace, is 47 inches above the ground. They are made out of three castings, for greater ease of trans- portation and repair. The top piece is 30 inches in depth all round, is clamped to a projection of the bottom part. The top is made in a shape of a pan, and holds water to the depth of 2 inches. When there is plenty of water it is made to discharge over the top, so as to run down the sides of the condensers, but when water is scarce it simply rests upon the top. At the Manhattan works, which were the first that used the Knox furnace, the condensers are only half the height of those used elsewhere. They have been in constant use for five years, and are nearly worn out, though they may last six months or a year longer. The ore here does not contain much sulphur. These condensers will be replaced by others like those in use here. A very small amount of weak and impure sulphuric acid water commences to con- dense in the third condenser, but is very abundant in the eighth, and condenses through all the rest. It corrodes the iron-work more or less rapidly. As this action takes place chiefly on the bottom of the condenser, it is cast separate and made several inches thick. As it has been foundthat the action of the acid water is much less rapid when it is in contact with a small quantity of air, it is allowed to collect for about two inches in the bottom of the last eight con- densers, and at this height is discharged from a wooden spout into the mercury trough, and runs to the settling vats M, which are 6 by 10 feet in size and 4 feet deep. A very small amount of mercury is carried off by these streams and col- lects in this tank. The very small amount so collected shows that the condensation is very nearly perfect. Mer- cury commences to collect in the first to the eighth con- denser, and is discharged at once into a conduit by a small opening in the bottom of the manhole door. It is collected in the iron pots K, which contain about an inch of water, to prevent the mercury from spattering as it falls into the pot. The iron pipe leading from the trough into the mer- cury pot is shaped like a goose-neck, so that the acid water runs off above and the mercury collects clear. It is bottled from these pots in the bottling-pot J. From the end of each set of condensers a wooden box, E', F', Gr', H', 1500 feet long and 30 inches square, carries the fiimes and smoke away from the furnace. The boards of which it is made are clamped against a wooden frame, on the inside by wooden clamps, on the outside so that it can be taken apart at any time. If nails were used they would very quickly corrode, and the flue, if not clamped, would be likely to fall to pieces at any moment. 800 feet from the furnace, on these long flues, there is a chimney, I, which descends about 15 feet high and 4 feet square. This chimney is filled with large stones, and water is made to flow over them fi-om a pipe 154 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. connecting with the reservoir S. This reduces the volume of smoke, which in this way, is made quite cool at this point. 1000 feet from this point the four conduits are united into one, and is continued to the top of the hill, half a mile off. No mercury and no mercurial soot is found in any part of this conduit, or in the flues leading to it. The object of it is'to carry away the smoke, which in the winter time collects in and around the furnace and annoys the men. It is quite common to see the sickly cattle of the neighborhood collect near the end of this conduit and remain there for half a day at a time, so that they have to be driven from it. The engines, W, which do the work of the two blowers are fifteen horse-power, and are to be used to saw all the wood. It takes 1 J cords of wood for the engines in twenty-four hours. Nothing like fifteen horse-power is required for these blowers, and only four will be required when the six fur- naces are built. All the condensers are cleaned once a week. This is done in the intervals between the charging and discharging by taking off the manhole door and clean- ing down the sides with a hoe, but without scraping them. It takes two or three minutes to take out the soot from each condenser. The soot is caught in an iron soot-bucket, which is 2 feet by 3 feet, and 18 inches deep, and is carried on a truck. The soot from the first eight condensers only is rich enough to treat ; that collected from the others is too poor to work, and is put back into the furnace. The draft into the con- densers is so strong that there is no danger that mercurial vipora will escape, if not more than one condenser is open at a time ; so that to prevent any possible accident they are opened one by one. After one or two have been cleaned the soot is worked up, and then the others are cleaned. By dsing the work in this way times cm be selected when the furnace is neither charging or discharging. The quantity of soot which is produced is very variable, and depends entirely upon how thoroughly the condensers are cooled, whether the fire is slow or quick, upon the speed of the blower, and also to some exteut upon the changes of the weather, so that the quantity deposited in each condenser will vary at different times. The same is true of the acid water ; and it some- times happens that when the blower is run at the usual speed, and everything else in the furnace is in the normal condition, but the water has given out, that no acid water will be deposited in the first six or eight condensers, the heat, which is usually absorbed by the evaporation of the water, being so great that they remain perfectly dry. It takes from Monday to Friday to clean out and work up all the soot, which is worked in the usual way with lime on an inclined plane. On Saturday the conduit and spouts, which get filled with mud, are cleaned, and the flasks are filled with mercury collected during the week. In a charge which gives 150 flasks per week, 40 flasks come from the soot. The works are so arranged that two furnaces may be run with one blower, or through one set of condensers ; and this may become necessary when one of the blowers, or one set of the condensers, have to be repaired. It is more diffi- cult to keep the heat up under such circumstances, and a smaller charge has to be put into each furnace. The diminu- tion» of capacity will amount to from four to five car-loads of ore in twenty-four hours. The two furnaces, B and 0, will generally treat 50 tons of assorted ore in a day. They have been run without repairs since January, 1874, and have produced from 600 to 900 flasks a month, the variation depending upon the richness of the ore. It is the intention to make the trial of distilling all the soot in a retort, P. The retort is built, but the trial had not at the time oi my visit been made. At the Manhattan works the soot is worked up in a retort to which a Liebig condenser, like Q, 10 feet long, is attached. The condensing pipe is large enough to hold a barrel of water at one time. The experiment is being made here of working the soot mechanically. It is mixed with lime and is put into an iron rocker, which has several motions, and in which a rake works backwards and forwards. A very large part of the mercury in the soot is collected in this way by machine labor without necessarily having any one to tend it. The rocker is run by the steam-engine of the works. This machine is not yet perfected. "Working as it did at the time of my visit, some of the mercury separated is afterwards floured. This is a serious imperfection, but is is expected will be shortly overcome The best men in the works at Knoxville are always selected for the Knox furnace. They work twelve hours, and are paid $40 for 30 days and board. If the men have families and occupy the company's cottages they are allowed $20, as a commutation for board, but they pay $7 J per month for rent. California Works. — The California Quicksilver Works also use the Knox furnace. They treat their own ore^ and produce 26 flasks of 76J pounds of mercury a week. All the ore passes over a coarse screen, so as to separate the large pieces from the fine and small, which are separated by other screens in the same shute. The larger pieces are broken by hand. The fine ore which is rich enough is made into adobes. One man mixes his dirt and makes 900 a day. The poor fine ore is dressed by hand gigs, and six men treat 10 tons, and reduce it to one-eighth of its former capacity. The enriched ore contains about five per cent, of mercury, but a considerable quantity of cinnabar is lost in the tailings, and it is doubtful whether the dressed ore pays for the labor expended upon it. The men are paid 140 and board, which equals $2 a day. The attempt was made here to treat the soot in the arched chamber Z opposite the fireplace, but the gases of the furnace contained so much free oxygen at this point, that the result was the formation of a large quantity of sul- phate of mercury, and the attempt was abandoned. The works have been managed with so little care that the con- densing-chambers, which have been used only 18 months, are so corroded that they' will have to be taken out. Long stalactites of acid 'sulphate of iron are hanging from them in every direction, and the walls in some cases have been entirely eaten through, or are so thin that they could be easily pushed through with the finger. It is the intention to replace the last eight condensers by brick chambers, 8 by 10, and 4 J feet high, with three partitions. When the iron condensers are in good repair the soot is found in from the third to the sixth, but now they are leaking it is found in from the first to the third. The soot is drawn every week from the first six condensers ; beyond the six they are cleaned only once in three months. The soot collected in the first six condensers is about six ordinary sugar barrels per week. The quantity depends upon the sulphur in the ore, its damp- ness, and other causes. Good oak wood is $4| per cord. About two cords in twen- ty-four hours are burned in the furnace. Brushwood is not as cheap as other wood here, and is consequently not used. There are five men in twenty -four hours about the furnace. At night the fireman and engineer alone run it. In dis- charging the furnace the engineer fills the wagon while the furnaceman draws the charge down. In the daytime there is a superintendent of the work, besides one man making adobes. The miners are required to deliver the ore broken and sorted. There are 100 men working in the mines. The miners are paid $45 a month. The works have been run constantly for 18 months without repairs, and have not stopped more than three weeks during the whole of this time for any cause. The first Knox furnaces constructed cost between $35,000 and $40,000 each. They were built when wages were high, and labor was difficult to get. The furnaces since constructed have cost about $25,000 each. There are 170,000 brick in the furnace beside the stone, but nearly half the cost of construction is for iron work. Be- low is a statement of the cost, at the Redington mine, of treating the ore in the modified Idria furnace and the Knox furnace. Cost per ton of reducing ore in the modified Idria fur- naces, Nos. 1 and 2, at the Redington mine, Napa County, California, in 1874, taking one week's run both furnaces : 6H oords wood, at 8,5, . , $27 50 36 days. Furnace foreman and his assistanr, , ... 88 00 20 " Laborers charging furnace, . . . . 38 00 12 " Laborers discharging furnace, . . 23 15 6 " Laborers worliing aoot, ... . 14 05 8 '* Firemen, . . . 14 65 9000 adobes, at $5 per thousand, 45 00 Total charge of 200 tons ore in these two furnaces cost, : $249 35 Average cost \t6r ton for reduction, . . i 25 Cost per ton of reducing ore in the Knox furnace at the Redington mine, furnaces Nos. 3 and 4, taking one week's run of both furnaces : THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 155 42 days' labor, engineer, fireman, soot men, etc., . , . $8106 n]4 cords wood, at 1(5 87 60 1 gallon oil tor lamps, , 75 1 gallon lard oil for engine . . 1 20 Total cost of one week's run . $170 61 Average cost per day for reducing 60 tons, . . . 24 36 Average cost per ton, ... 60 The difference between $1.25, which is the cost of treat- nlent in the modified Idria furnace, and $0.50 the cost of treatment in the Knox furnace, is suflSciently great not only to warrant the use of much poorer ore in the latter furnace, but to call seriously into discussion whether it is not worth while to abandon the old style of furnaces altogether. Below is given an estimate of the principal items of ex- pense of building one Knox & Osborn quicksilver furnace, in October, 1874 : 60 to 75 M red brick. 12 M firebrick. Stone for iouadation, walls, etc. 1 cast iron lintel weight snno lbs. 1 cast iron draw-door frame, weight, 650 " 1 set draw plates, cast iron, weight, 3500 " 18 cast-iron condensers, complete, weight each, . . 6500 " 1 fire-door and frame, weight, 650 " 1 flue-chamber plate and door, weight 1000 " 6 braces, weight 3000 " 1 blower-box, weight . . 2500 " 2 pots, etc., weight, . . 500 " 1 set grate-bars, weight, . . . 1200 " 1 blower, . . $500 " Blower pipes ... ... 50 1 retort and condenser 600 lOOO feet wooden flues, cost per running foot 1 1 engine, with pulleys and shafting, 8 x 12 cylinder. 2boiTer*i (12x3). 35 square timbers, 12 inches by 12 inches, and 21 feet long. 60 round iron rods, 1^ inch diameter, 23 feet long, lO-inch washers on both ends. 2 cars, railroad tracks, etc. It takes six or eight masons, with their helpers, between three and four months, to build one of these furnaces. The cost might t>e made less by making more than one-half of the condensers of wood. They might answer even nearer the furnace, if there was a certainty of always having a large supply of water, so that they could be kept constantly wet. Co=t of labor would be about, $5,000 Cost of building the furnaces 3 and 4, and condensersnow in use .... 60,000 Below is given Knox & Osborn's estimated cost of a quicksilver furnace, with a capacity of 75 tons, or to work 24 tons every twenty -four hours : Cast iron in furnaces, 17,000 lbs., at 6 ets. per lb $1,020.00 Cast iron in condensers. 91,000 lbs., at 6 cts. per lb., . . 5,496.00 Work, planing and fitting, . . ... $9'i.00 1 conical charging car, . The cost of the half size furnace is about, .... The cost of the three-quarter size furnace is about. .$9,000 . 14,000 . 150.00 1 discharging~car . . . . 125.00 1 Knox pat nt i-uction blower, ... . . . 400.00 2 boxes b'rings t) caulk condensers, . . . .10.00 3 iron kettles, 120 gallons each 100 00 Forging bolt ends, and nuts and screwing, . . . 70.00 Gross amount of foundry bill, 20,000 feet of lumber, at $20 per M, . . 400.C0 80,000 red brick, at $10 ner M, . . . . 800,00 7000 firebrick, at $60 per M 420.00 4O00 lbs. wrought iron, at $5 per M, 200.00 1 set blocks and fall (watch tackle) 6 inches, . lO.iio 2 iron sheaves, l^x 6 inches, . . . 4 iron side pulleys, 40 feet chain >.i-inoh wire, 10 kegs nails and spikes, at $60 per keg, . . . $7,461.00 6.00 2.00 2 00 46.00 Labor, erecting furnace, Boiler and engine, four horse-power, 1,884.00 . $2,000.00 . 800 00 $12,145.00 In this estimate nothing is included for grading site, drayage, freight, hauling brick, sand, clay, rook, and timber, to the furnace; nor for the sheds to cover the structures. As the different sized furnaces would require about the same amount, as an approximation, we may say, that $3000 would cover an extreme case, and $1500 would suffice for a very favorable one. In a position where water for a four horse- power can be had, a saving in the first cost is effected, and a greater saving in the current expenses of running. There Ire two sizes of this furnace, a half size, or 12-ton furnace which easily treats 15 tons, and has, when crowded worked 17 tons. The full size, or 24-ton furnace, crowded in the same way, will work 30 to 34 tons. Both these sizes have been built within the year 1874, and they are giving perfect satisfaction. The following is the estimated cost of running or opera- ting the Knox & Osborn furnace, at the Manhattan works, per day of twenty-four hours, when run by steam power : For an average ore for 24 hours, 1% cords of wood (oak), at $4.50 per cord,* $5.63 2 men on each watch of twelve hours, or 4 men, $50 per month, and board, $2-53 per day, . . . 10 12 Oil for light and engine, ... . . 60 Cost per day for reducing 24 tons of ore, . .... $16.25 Cost per ton, . 67.j:^ With regard to these systems of working it may be said that the advantage of the retort system is its economy of installation. It does not appear that there is any gain in yield, though this is claimed for it, while the expenses for fuel and labor are necessarily maximum, of the amount which can be treated at any given time must be considered as a minimum. The cost of repair is also a maximum, since the iron of the retort is rapidly attacked by the sulphur of the ore, which destroys them, so that a larger number of them must always be kept on hand. The danger of accidents from salivation is at a maximum, even when the precaution of using a blower, as at the Missouri mine, is taken, and there seems to be no good reason why such furnaces should not go out of use, altogether. There is evidently a limit beyond which the speed of the blowers, which are so charac- teristic of California practice, cannot be increased. Not only is a large surface necessary to a perfect condensation, but a certain amount of time is quite as indispensable to cool the volatilized material, in order to have it condense. If, therefore, the condensing surface be a maximum, but the velocity of the current too great, it is evident that there will be a loss of mercury, which will be exhausted out of the condensers by the rapidity of the current. The proper speed of the blower will vary at different times, and with the obstruction caused to the passage of the air, by the kind of condensers used, and by the character of the ore charged in the furnace. It is evident that in a given furnace, the ore may be charged so fine, that it will pack in such a way, that no speed of the blower will draw the furnace's gases through it, or so large that a few revolutions per minute will be- all that will be required. Between these two extremes there is a mean, which can only be determined by the judgment of the person in charge of the furnace, and it is often precisely this judgment and skill, which may or may not have been acquired by long experience with a process, which makes an inferior process give good results in one place, and the want of it which makes a good process fail in another. Such ex- amples occur throughout the whole range of metallurgical industry, and not in the metallurgy of mercury only. The objections to masonry condensers are generally the penetrating power of the mercury, which is so great that it not only impregnates th.e vertical stone or brick walls of the chamber!?, but infiltrates into the ground to such an extent that on taking up the foundations of some old furnaces at New Almaden, about the year 1863, mercury was found to have penetrated through the foundation, and the clay beneath it to the bed rock a depth of 25 to 30 feet, and over 2000 flasks were recovered in a single year from the foun- dations of two furnaces. This loss is now prevented by building the condensing chambers upon double arches, into which plates of iron are built so as to cut off the flow of mercury, and turn it inwards towards an iron basin into which it may be seen to fall in intermittent streams every few minutes. At the time of my visit to New Almaden a large shaft had been dug beside one of the furnaces, and at the depth of 30 feet, it was still profitable to wash the dirt in order to collect the mercury from it. In 1874 suflScient mercury was obtained from the brick ore-chamber, and three condensing-chambers of a furnace, and from the dirt around the structure, to more than pay for the new shaft fiirnace and condensers. For the construction of condensers pricks, though porous, are much preferable to and I think less porous than the sandstone used in the old Idria furnaces at * Of this one cord would fire the furnace, one-quarter the boiler. Ores rich in sulphur will not require over one-half cord of wood in twenty- four hours. 156 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. the Eedington Works. Whenever repairs in the condensers at Knoxville have been made with brick, they have stood while the sandstone next to the bricks has been worn away. It is evident that what is required is some substance that will be impervious to mercury. Bricks, however, are not so. Every brick or piece of sandstone taken out of a condenser must be considered and treated as a very rich ore of mer- cury, or whenever broken myriads of globules of metallic mercury are seen scattered through it. Iron is better than brick, in that it does not absorb mercury, but it is rapidly corroded by the sulphuric acid wljich condenses. Wood is much cheaper, but cannot be used near the furnace on ac- count of the heat. At a certain distance from it, it is more or less rapidly acted on by the condensing sulphuric acid. It seems perfectly practicable to make such a combination of wood and glass that will stand at a certain distance from the fireplace, and by placing the condensers made of brick near the furnace, and cutting them up into smaller struc- tures so that they shall not retain the heat, or substituting iron condensers with water cooling arrangements, for them to arrange a good condensing apparatus. By using, for in- stance, the Knox condensers together with the wood and glass arrangement recently patented at Almaden, it would seem that a much better condenser would be made than any now in use.* In any case a few large compartments are not so effective as the same volume distributed among a large number of small ones. What is required to eifect a perfect condensation is surface more than volume , and more espe- cially sudden and frequent changes of the direction of the current of volatilized material. With a furnace having only a natural draft this was impracticable, but with a furnace working by an exhaust fan, where obstacles can be intro- duced within certain limits, it is only necessary to increase the speed of the fan to get the necessary draft. There is, however, evidently a limit of obstruction which cannot be overstepped. There seem? to be a very decided advantage in using an artificial fuel when it can be had ; European experience has pronounced decidedly in favor of it. At New Almaden a series of experiments were made during the years 1873-4. with coke and charcoal, and a mixture of both, but at the time of my visit no definite conclusion had been arrived at. It would seem even advantageous under certain circumstances to mix a certain amount of fuel with the ore, especially when large amounts of fine ore not made into adobes must be charged. It is evident that the fuel which contains the least amount of moisture, if it is not friable, will prevent the formation of a certain quantity of soot, and as artificial fuels generally contain less moisture than natural ones, there would probably be less acid con- densed if they were used. There are places, however, where the cost of making the artificial fuel would more than coun- terbalance the advantage gained. Every system in use, and some which are not, have their supporters. When the date of the discovery of these depo- sits in California is taken into consideration, it must be confessed that more rapid strides have been made in the metallurgy of quicksilver there than in Europe. There is, however, much to be done. So little is known of what is done, and the prices of the metal have been subjected to such great fluctuations, that except in the case of the wealthy companies, there has been but little encouragement to experiment. The price of quicksilver in San Francisco in August, 1874,' was $1.76 per pound. It is now 75 cents, and has been in former years as low as 35 cents. Such prices as these, if they should rule again, would compel al- most all the small works to stop. The general feeling is that every advantage must be taken of the present. Under such circumstances the small works must wait to benefit by the experiments and experience of the larger ones, if they are not entirely ruined by the fluctuations in value before they have the oppoitunity. — CompUed/rom a papier by Prof. T. Egleaton, Trtiusacfions American Institute of Mliiuig Eiir/uienrs. '* While this paper is going through the press, Mr. 0. E. Liver- more, of the Redington mine, writes that they have commenced to use SIX or eight wooden condensers to t'aeh furnace. They are made of seasoned red wood li inches thick, and of the same size and shaiie as the iron ones. They are found to last at least equally as well, and are far cheaper. THE GOLD BLUFFS AND GOLD BEACHES ON THE NORTH PACIFIC COAST. MORE than thirty-one years have now elapsed since the first discovery of gold in the beach sands on this coast. This occurred at Gold Blufi" in 1850, and led to the excitement which the following spring carried a great many people to that point. Although the most of these adventurei'S were disappointed in their expectations, the existence of gold in considerable quantities at that locality was not altogether a myth. The precious metal was there, but it existed in a form and under con- ditions that made it impossible for these people to gather it with profit. So, after a few fruitless attempts at working these deposits, the business was abandoned, the most of these Argonauts returning to San Francisco, whence they came, a few having made their way farther up the coast, or crossing the mountains to the mines on Trinity River, then just beginning to be heard of. The trouble with these beach deposits was this : The gold which the surf threw up and exposed to view at one time was covered with ma^^es of barren sand or swept wholly away at another, its stay being to brief to permit the waiting crowd, ill equipped for the purpose, to secure more than an infinitesimal portion of it at any one time. Then, but little of the gold that the sands contained, could, by reason of its fineness and its being coated with some greasy or gaseous substance, be saved. And so Gold Blufi' was, for the time being, pretty much deserted, and its name afterward classed with the tradi- tionary humbugs of which there were all too many at that day. But there were those who entertained the belief that where there was so much gold, means could be devised for saving at least sufficient to make the collecting of it re- munerative. Of these hopeful ones enough remained to form several small companies who pursued her^ the business of gold gathering with tolerably good results, these parties having stopped at the original Gold Blufi", and secured there some of the best paying portions of the beach. In course of time, however, the whole of the beach lying in front of this bluff, some eight miles in extent, fell into the hands of two companies, the one composed of two mem- bers, Greenbaum & Chapman, and the other by some six or eight persons, all practical miners. These companies adopted the plan of gathering at low tide the richest por- tions of the sand, and packing it on animals up beyond the reach of high water, and there washing it in sluices. As each of them owned four miles of beach it seldom happened that they failed to find after a heavy surf, with a favorable wind, some rich sand at one point or another along this stretch of beach, and having grown expert at detecting these deposits when present, and being withal well pro- vided with the means for securing and removing them, these companies made the business pay handsomely. But the locality being remote and difiicnlt of approach, vessels of any kind rarely ever touching and making no regular landings there, only at long intervals have we been able to hear much about the operations of these companies, little exact information on the subject having, in fact, ever reached the public ear. From Mr. Allen Heald, of Oakland, who is familiar with this class of deposits, aud who, not long since, visited Gold BluflT, traversing the beach thence north, we have some recent and accurate infor- mation from this isolated but interesting section of our gold fields. Touching the history and operations of the two companies mentioned, it seems that they or their successors are still the only parties extensively engaged in gathering and washing the auriferous sands at or near the old Gold Bluff. The Greenbaum Company still consists of the two members who originally composed it. The shares of the other company hn.ving been bought up by Richard Furnald and Solomon Hall, this property was afterwards sold to Adson Adams, the real estate millionaire, of Oakland, Mr. Heald having examined the ground and negotiated the sale on behalf of Mr. Adams, who is now its sole owner. Each of these estates vields on an average about $40,000 per year, of which something like 65 per cent, consists of net profits. As Mr. Adams paid but $50,000 for his purchase, he natu- rally considers the bargain a good one. He has since. been THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 157 offered $100,000 for the mine, but declined to sell at any such figure, believing it agood legacy to leave to its children. Not only so — he finds the locality a pleasant summer resort, and is, at this time, sojourning at Gold Bluff" with his family. The manner of conducting the business of gold gather- ing at this point is as follows : After a heavy surf the super- intendent of the mine rides along the beach as the tide begins to ebb and carefully notes the condition of the sand, watching for evidence of gold having been thrown up by the waves. If he discovers that fresh deposits have been made he signals the muleteers to that effect, who then rush down their animals and pack out as much of the auriferous sand as possible before the tide again comes in and puts a stop to their work, covering up perhaps the rich streak with a heavy layer of barren sand or possibly sweeping it away altogether. It is a singular circumstance that when the surf comes square on the beach the gold brought up by it is covered under several feet of this barren sand, and that only when the surf strikes the beach at some other angle, is the gold left on the surface where it can be seen and readily gathered. After being so collected, this rich sand is washed in sluices, small streams of water having been brought in for the pur- pose. For saving the gold only copper silvered plates are used in the sluices, which are usually run with a light head of water. On the border of a small lagoon on the Greenbaum ground, a short distance back from the beach, occurs a large body of low-grade sand. This is run out on cars and washed in an old-fashioned " Jenny Lind " torn, being a sluice of one box widened out and supplied with a screen at the lower end. At one time it was thought that this gold was brought up out of the ocean, an opinion that some people still enter- tain. But this is clearly a mistake. It came from the bluff in the rear, which is made up of alternating strata of clay, gravel, and sandstone, the gravel strata, three or four in number, being all more or less auriferous. The action of the waves has broken down this bluff, which varies from 100 to 500 feet in height, and released the gold ; the latter having afterwards been by the same agency carried seaward at least as far as low water mark. After a very heavy surf breaking down, as sometimes happens, a portion of the bluff, the beach below is sensibly enriched, the gold by this new addition - being rendered somewhat coarser than before. This fact has suggested the utility of employing powder for breaking down and disintegrating these banks, an agent that will, no doubt, some day be used for that purpose. While the sand along this beach must under such steady and long-continued working, necessarily suffer a gradual impoverishment, this latter has not, as yet, proceeded far enough here to sensibly . affect practical results, a fact due, it may be presumed, to the great width of the beach at this point and to the replenish- ment which the stock of workable material is constantly receiving from the caving down of the banks above. Far- ther north, where these favorable conditions did not exist, the gold-bearing beaches have been so nearly exhausted, that hardly any work is now being done, where from fifteen to twenty-five years ago, thousands of men made good wages. That the sand, which is constantly covered by the sea, is not very rich has been proven by the trials made on it some years ago with steam dredgers, none of which found gold enough in it to warrant a continuance of these operations. Each of the companies above mentioned employ from ten to twelve men and about eighteen pack-animals the year round. Operations are kept up with but little interruption, the men being engaged a good part of the time, either in gathering sand or washing it. "What time they are not so employed is devoted to cultivating a patch of land in the neighbor- hood, on which the companies raise some fruit, hay, and vegetables for their own use. Adjoining the Adams claim, which covers the upper or northern half of the beach, a small company is washing these sands by the hydraulic method, using a limited amount of water under a pressure of eighty or ninety feet. From this point noith, clear into Oregon, a distance of thirty to forty miles, very little in this line'of mining is being done, though this was at one time along miles and miles of the beach in the vicinity of Whisky Run and the Coquille rivers, an active and profitable industry. Here and there a small company is still to be seen rework- ing the sands that have already been washed. In some in- stances several times over, and always with remunerative results, the first one or two washings having generally paid very large wages. From Mr. Heald, who is himself a successful miner, we learn that the present has been a prosperous year with hydraulic miners along both the Trinity and Klamath rivers, notwithstanding the water season there, as elsewhere throughout California, has been a very short one. Owing to its freedom from the vexatious dSbris question and to the presence of good conditions gen- erally, that region of country is strongly attracting the at- tention of capitalists and others inclined to invest in this branch of mining. Besides great quantities of good gravel, the Klamath country is especially well situated as regards water, which is not only abundant but can be brought upon the mines at small cost and under great pressure, the moun- tains, the sources of the supplying streams, rising to a great height directly over the mines. That but little trouble is encountered there from high-rim rock or cemented gravel, may be inferred from the fact that no bank blasting has ever been practiced nor has a single bedrock tunnel of any length ever been driven in Klamath county ; and this, not- withstanding hydraulic mining has been carried on there extensively and successfully for many years. For these and other reasons it costs comparatively little to open up and run a mine of this kind anywhere in this northern region. — QympHed from *^The Mining and Scietdific Press. " TIN MINING AND THE CALIFORNIA ORES OF TIN. THE importations of tin in bars, blocks and pigs into San Francisco have trebled within four years. From 656,752 pounds, valued at $83,870, in the year 1876-77, they have increased to 1,315,104 pounds, valued at $248,256, for the year ending June 30, 1881. This does not include the tin plate imported. The large increase is due to the fruit and salmon canning busi- ness. When it is considered that what is used on the Pa- cific Coast is only a small portion of the total quantity employed in the entire country, one will be better able to comprehend the importance of the tin trade, and to under- stand that if tin mines were discovered iu the United States they would prove a profitable investment. At present all the tin used comes irom Cornwall, Banca, and New 6outh Wales. The tin mines of Cornwall are connected with the earliest history of England. The Phoenicians imported tin from the white Island, the name given in their time to Great Britain. Under the Saxon dominion the Cornish tin mines were neglected, but when the Normans came they were vigorously developed. During the reign of John, the Jews got hold of them and worked them to their own profit. For over two centuries they continued to yield largely, when a lode was discovered in Bohemia by a Cornish tin miner who had been banished from England, but the yield from it was never at any time very great. About the middle of the last century discoveries were made at Banca, one of the islands in the Malay Archipelago, belonging to the Dutch, which promised to seriously interfere with the Cornish trade. Destructive competition was avoided by the action of the British Government, which interfered to prevent too rapid development of the Banca mines. The consequence was that the supply waS never at any time greater than the de- mand, and both countries continued to sell the products of their two mines at paying prices. The yield of the Corn- wall mines at the beginning of the present century was under 2,500 tons. It now exceeds 18,000 tons a year. The yearly yield of the Banca mines is in the neighborhood of 10,000 tons. Since the latter development tin has been discovered in New South Wales, Australia. The yield of these mines is about 8,000 tons yearly. The total tin supply of the world is from these three sources, the quantity obtained from other countries being of small moment. The Australian discoveries broke the English prices, and from £150 ($750) a ton, Cornish tin has sold as low as £60 ($300) 158 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. a ton. An understanding between the two countries was eventually arrived at, and at present the average whole- sale price of tin is about $500 a ton, or from twenty-four cents to twenty-five cents a pound. Taking the world's requirement at 40,000 tons, the total value of tin used, at the above rates, is $20,000,000. The American importation represents over $6,000,000 of this amount. Discoveries of tin have from time to time been made in the Southern part of California, notably in the Temescal Range of mountains about thirty miles from Riverside, and close to the San Bernardino county lines. The first of any note was made in 1860, and caused considerable excitement. The tin found was pronounced of good quality, and was said to exist in large quantities. It came principally from what is known as the Cajaica mine. A fuller examination of the lode was not satisfactory, the evidence being that it was not of any great extent. The increased demand for tin on this coast, and the high prices maintained, have been the means of again directing attention to the tin lodes of Southern Califojnia, with more satisfactory results. One reason of previous disappointment was due to the finding of a dark colored glossular garnet, quite common in the Temescal region, the crystals of which resemble the tin ores of Cornwall, Cornish and Australian miners have been frequently deceived by this mineral. A party of them that had worked in the Australian tin mines, and who were passing through San Francisco, visited the Temescal Range. On seeing a dark colored stone in the I'iver beds, they , immediately said that stream tin existed there in large quantities. They were, however, mistaken. Although closely resembling in appearance the stream tin ore of New South Wales, the Temescal specimens contained no tin at all. There is no stream tin in the Temescal mines as far as known, but it has been determined that there are consider- able quantities of tin ore in lodes. A peculiarity of the ore is that it does not look like tin ore. Clever assayers have been frequently deceived with it. Some years ago some of the ore was forwarded East for assay. The person; to whom it was sent, well competent to judge of tin ore, returned the specimens saying that the sender of them must have made some mistake, that the ore sent was not tin ore, and could not possibly contain tin. They were again sent to him with the request to assay them, and not to mind •whether they had the appearance of tin or not. He did so, and changed his opinion. Following upon this a company was formed to work them. A sufficient amount of capital was subscribed by the shareholders to make further in- vestigations. When prepared to go seriously to work the Company found that there was a difficulty in the way of obtaining a perfect title to the land. It formed part of one of the old original Spanish grants, with a floating title, and it was decided to abandon all further enterprise until the title to it was definitely obtained. In the opinion of some persons this fact has been determined, but not to the entire satisfaction of capitalists. It is still before Judge Sawyer of the United States Circuit Court in San Francisco. A letter lately received at the State Mining Bureau of California states that when a clear and settled title to the land in which the mines are situated can be obtained, all the money necessary to work and develop them will be immediately forthcoming. The prospects of obtaining such a title are said to be promising. The samples of tin ore obtained from the Tem- escal district gave thirty per cent, of oxide of tin under assay. If ore assaying that percentage exists in large quan- tities the value of the mines could hardly be overestimated. The sole matter of doubt appears to be the extent of the deposits. Investigations have never been pushed sufficiently far to determine that point. Experience in respect to the deposits in other counties teaches that wherever tin has been found in one locality it has led to the discovery of other de- posits in the neighborhood. An important point is to know how to prospect for it. A simple and good way is to pul- verize the ore in a mortar or any other vessel that will answer the purpose. Then wash it out in a pan or a horn spoon in the same way gold is prospected for. Dry the residue in the sun. Then again pulverize it as fine as possible. Fuse it with cyanide of potassium on charcoal before a blow pipe, and if the ore contains any deposit a button of metallic tin will be obtained. The miner will in course of time become familiar with the appearance of ore containing tin, and will be able to pronounce upon it at sight in the same way as would an expert Cornish miner. A peculiarity of tin mines, as was 6.hown in the celebrated Dolcoath mine, is that they may at first be worked as a tin, then as a copper mine, copper deposits underlying the tin ore, and finally at greater depth as a tin mine again. The Coneto tin mines near Durango, Mexico, on the Pacific slope of the Rocky Mountains, although comparatively unknown are said to contain im- mense deposits of tin ore. They have been worked for many years past, but are still only partially developed. This is owing to the cost of bringing the tin down on mules' backs. If railroad communication existed and capital were put in to develop them, it is believed, from what has already been accomplished, that they would yield as largely as any tin mines in the world. At the State Mining Bureau of Cali- fornia, there can be seen specimens of the Durango and Temescal ores. There are also specimens of tin ores from Cornwall, Bohemia and Australia. The cause why so little has been done to determine the extent and value of the tin ore deposits of Temescal is due to a prejudice arising from a misconception of the existing geological relations of the Pacific coast. The ore has been judged at the Cornwall standard, and failing to correspond to the English ore in ap- pearance, has been condemned. Tin ore yielding thirty per cent, of oxide of tin under assay, will give ninety-five per cent, under concentration, equal to about seventy-five per cent, of pure tin. There are over five hundred tin claims located in the Temescal Range. Of this number thirty-three are known to contain tin, but only one, the Cajaica, has been opened. An analysis of Temescal tin ore, made by F. A. Genth of Philadelphia, gave the following results : Silicic acid . . 9.82 Tungstie .22 Sianniu (oxide of tin) . 76.15 Oxide of copper .27 Oxides of iron, manganese, lime and alumina 13.54 Total ... . 100.00 — Son Francisco Sulktin. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 159 PART III GEOLOGY OF PROMINENT MINING CAMPS— THE DI8TRIBUTI0N OF IRON ORES— THE C0M8T0CK LODE AND THE 8UTR0 TUNNEL —FOREIGN FACT8 OF MINING INTEREST. 'HE study of geology in all its branches is fascinating at all times, more particularly however in the mining regions, where the skilful eye of the man of science enables him at a glance to gain the key to the region under observation, and to profit where the unlearned can see nothing but rocks. In Part III, The Mines, Miners and Mining Intekests of the United States, we have therefore in- troduced some information concerning two important min- ing regions. We have also in this Part embodied a mass of information of more than general interest, on many subjects connected with the metallic wealth of this country. Also, we have compiled for a place in Part III, some papers an European topics including some statistics upon the iron trade of Great Britain. Some statistics of foreign bullion product are also printed, which do not strictly pertain to the mining interests of the United States in 1882. Possibly this Part should have been headed Miscellaneous, rather than the titles bestowed, as the articles are such as did not admit of classification under any other head, nor belong ap- propriately with the other divisions of this volume. THE GEOLOGY AND VEINS OF TOMB- STONE, ARIZONA. THE mining district and the town of Tombstone are situated in Cochise County, Arizona Territory, at the northwest end of the Mule Pass range of moun- tains, in longitude 110°, and latitude abcftit 31 40 N., upon the right bank of the San Pedro River from which the town is distant 9 miles east. It is also 24 miles south ot Benson Station on the Southern Pacific Railroad of Arizona, and about 40 miles north of the Mexican hne. Its altitude above the sea is 4,600 feet. The Dragoon Mountains rise across a valley to the northeast, and the Huachuca range sim- ilarly upon the southwest. The country is open, without timber, and the suffape, where the mines are opened is, in general, gently rolling and accessible to wagons by natural roads, The first locations were made in the year 1878 by the Scheffelin brothers and Richard Gird, the latter being well known among the pioneers of Arizona as a surveyor and miner who contributed largely to our knowledge of the geography of the territory in early days, when the dreaded Apache dominated the region. There are now, probably, over one thousand locations or claims in the district, and upward of 2,500 inhabitants. The output of the precious metals, gold and silver, up to the first of January, 1882, ag- gregates $7,359,200, and over $3,000,000 have been disbursed in dividends. This product is distributed among the follow- ing-named mines and mills : Production of Tombstone Mines and Mills. Tombstone Mill and Mining Company, . . . . S2,704,936.S3 Contention Consolidated, 2.703,144.39 Grand Central, . . 1,060,875.30 Head Centre, 191,620.52 Vizina, 526,716.98 Ingersoll, 16,000.00 Sunset, ... 16,000.00 Corbin Mill, . 40,000.00 Boston Mill, . Dividends. 112,007.83 Tombstone Mill and Mining Company, . . $1,100,000.00 Contention Consolidated, . 1,376,000.00 Grand Central, . . . 600,000.00 Vizina, . ... 80,000.00 This will sufiice to show the importance of the locality for mining, and to indicate at the same time the principal claims. Geology of the District. — In going from the railroad at Benson to the mines, the traveler rises from the post- pliocene deposits along the San Pedro to a granite plateau. The rock is gray and highly crystalline, and is apparently eruptive. It weathers in places into gigantic rounded blocli and masses lying one upon another, as if piled there by some titanic force, rather than by the gentle and gradual effects of irresistible decay. This rock extends to within a mile or two of Tombstone, where stratified formations occur, over- lying the granite. These stratified beds consist of quartzites, limestones and shales, with frequent repetitions in an ascend- ing series several thousand feet thick, but all conformable and dipping generally at a low angle from 20° to 45° to Ihe eastward. The fossils which have been found in the middle and upper beds, consisting chiefly of Produetus and cya- thophylloid corals, show them to be Paleozoic, and probably lower carboniferous. The lower strata are probably older. A small shell, like Lingula, occurs in the shales of the Con- tention mines. In addition to the stratified formations, we find intrusive porphyritic dykes . cutting through the strata indiscrimi- nately, nearly at right angles, and trending approximately north and south, or a little east of north. This is the direc- tion of the general rift or breaking of the country and of the mineral veins. In the central portion of the district. 160 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. Ill n I II Fig. I.^Anticlinal Fold. Toughnut, I. Novaculite — under the limestone. II. Limestone — bending over the novaculite. III. Shales — bending over the limestone. UlM covering the claims known as the Toughnut, Good Enough, Way-Up, Vizina and others, erosion has exposed the out- cropping edges of many strata of limestone shales and " quartzites." Both the shale and so-called quartzite beds are of deep-sea origin, being very fine and compact in tex- ture, with scarcely any signs of granular structure. The lat- ter, particularly, is flint-like and very hard, and is more ex- actly described as a novaculite or honestone. In places, it passes insensibly into limestone. It is, no doubt, largely organic in its origin, and is a very fine sediment, totally dif- ferent from the typical quartzites, with granular structure, found in the higher parts of the series of strata. It evi- dently, in forming, accumulated slowly, beyond the influ- ence of currents, at the sea bottom. An abundance of iron pyrites in fine crystal- line grains, dissemina- ted through the layers of this rock, gives evi- dence of its organic ori- gin in part, at least This rock has special importance from the fact that the miners in the Toughnut and Good Enough claims find it fie^ow the chief ore-bear- ing limestone. It is regularly and evenly stratified for a thickness of about 140 feet, and rests upon a thickly-bedded dolomitic limestone below. The beds above it consist of dark, black or blue limestones, and of thick beds of dark argillaceous shale, alternating with black siliceous shales for nearly half a mile to the eastward. The black limestones above the novaculite are the chief depositories of the bedded masses of rich silver ore, as will be presently shown. The whole .series of beds in this central part of the district is thrown into folds, being regularly plicated in a series of wave-like flexures, the steepest and sharpest folds being on the north- west of the Toughnut and Good Enough claims, facing the granite region in that di- rection. These folds may be traced, but with difficulty, upon the surface, but are best seen in the cross-cuts of the mines and along the drifts. In the open cut upon the Toughnut there is a good exposure of soma of the beds at the crest of an anticlinal fold presenting an appearance in section, along a northeast and southwest cut, nearly as shown in the an- nexed drawing. This little section is along the upper level known as the "adit." It is directly below the place on the surface where ore was found cropping out, mixed with soil and vein-stufl!". At another place, upon the west- ern end of the Good Enough, we find a series of plications up and down at about the angles shown, and with rich ore lying in the folds. These folds are not large, covering only a few hundred feet in extent, but are beautifully regular and well- defined. As we pass up the hill, rising higher in the series of strata to the eastward, the dip becomes more regular, and coarse- grained quartzites, in thicker beds, take the place of the finer-grained deposits. All the formations named have not only been up- lifted as described, but have been much broken and faulted, either at the time of up- lift, or at long periods later. This is shown by the number of fissures and lines of fault, as well as by the outcrop of dikes of porphyry, and the dissimilarity of the stratified beds on each side of them, and the disjointed outcrops of the limestone beds. The Contention Mine.- -The chief fissure and ore- bearing vein of the district traverses the Grand Central and the Contention claims. These claims were located in a north and south direction, upon the somewhat obscure croppings of a dike of dioritic porphyry carrying ore in through and alongside of it. This location was made by Messrs. White & Parsons. The croppings were not remarkably well de- fined, consisting of the porphyry and a confused mixture of porphyry,chert and quartz, with masses of porous quartzite alongside ; none of these rocks rising high above the soil. There was, however, a considerable discoloration of the soil by iron rust along the line,and a little digging revealed good ore near the surface. The harder parts of the dike were the most prominent, and its direction governed the direction of location of the claim. This dike varies in width from a few feet to 50 feet or 70 feet, and dips to the westward at an angle of from 55° to 65°. It cuts indiscriminately through shales, quartzites, and limestones, and is evi- dently of igneous origin. The contact, however,with the abutting edges of the disrupted beds is not al- ways marked by any great change in their appear- ance or composition, though in places there is impregnations of silica, and some re. The dike itself has a distinct vertical lamination or structure through most of its sub- stance, and is more or less penetrated by veinlets of quartz. In some portions it is highly crystalline and nearly barren, and in otliers, consists chiefly of a feldspathic base, in which the feldspar crystals are obscure. It passes into a felsite, which, in the decomposed portions of the dike, and when slaty in structure, might be mistaken for the partly decayed shales or quartzites. Large portions of the dike are so pene- trated by quartz as to consist largely of it, and might be called quartz, although close examination will show the presence of feldspar. The accompanying cross-section of the chief part of the dike, taken on the first level of the Head Centre mine, upon the Contention lode, will convey a better idea than can be given in words. It shows the vertical structure and the general distribution of quartz in vertical seams or layers, and in one place a vugg or cavity, in which there are distinct obscure metamorphism modifications of structure, quartz crystals. In general, however, combs of quartz crystals are wanting; the quartz being in an amorphous, sub-vitreous state, or in the form of chert. A fragment ground down to a plane surface showed very plainly the lamellar arrangement of this quartz with the intermediate spaces filled with feldspar. This lamination is typical of the vertical structure of the dike. Another fragment, with less quartz, taken at a distance of about two feet from the first consists chiefly of a felsite base, with obscure crystals of foldspnr sparingly distributed. Examination shows it to be penetrated irregularly by veinlets of quartz, as shown by the accompanying sketches from ground and polished surface. There is also a considerable amount of mineralization of the dike by iron pyrites disseminated irregularly in its sub- stance in cubical crystals, most of which have dissolved out and left the cavities only to indicate their former presence, THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 161 making in some places a spongy mass of porphyry or of quartz. Although the mine has been worked to a depth of 600 feet, and there are some 12 to 15 miles of drifts, levels and winzes in the Contention and adjoining mines, the un- deuomposed ores below the water-line have not yet been reached and mined, and all the ores above are in the decom- posed and oxidized condition common to surface ores. A large part of the ore is highly charged with red oxide of iron, to such an extent that the clothing of the miners be- comes saturated with the rouge-like powder, and the tailings at the mills are blood-red. There has been an extensive de- composition of the porphyry, especially along the upper 300 feet of the dike, resulting in the formation of (quantities of white-clay kaolin, sometimes perfectly snow-white and pure, but generally more or less mixed with red oxide of iron. This kaolinization extends in places to the adjoining shales, and there are some white, clay-like interstratifled beds which may, on further examination, be found to be altered felsitic offshoots from the dike. It is not yet possible to say what the exact nature of the ore below the water-level will be found to be. The only metallic contents so far found, with the exception of the pyrites and some galenite and lead car- bonate, are gold and silver in a comparatively free state ; part of the gold, if not all, being free, and the silver occur- ring chiefly as chloride, or horn silver {with probably some iodide), in crusts and films, also occurring in minute crystals upon cleavage surfaces. The average value of silver and gold in the ores worked last year was about $70 per ton. The gold has of late increased "from 20 to 25 per cent, of the value of the product, the rest being silver. Gold in Porphyry. — One very interesting fact is the occurrence of free metallic gold together with chloride of silver, in the midst of the porphyritic rocks, at a distance of many feet from the portions of the porphyry-carrying quartz in veins, and dissemi- nated. This gold is found chiefly in a por- tion of the rock ap- parently dioritic, con- taining finely dissemi- nated hornblende. In decomposing, this por- phyry becomes steati- tic, and in places ap- pears to be changing to serpentine. The gold is found in thin sub-crystalline flakes and scales, chiefly in and along thin seams .^ . t j t, • ^i and cracks in the mass of the rock, as if it had been infil- trated and deposited from solution. This is probably the fact, and the magnesian nature of the rock has no doubt ex- erted an important influence in its deposition. Free gold is also found in quartz in the usual manner of association ; but even in such specimens the crystalline feldspar of the dike is found. „, . , c Metallization of the Dike.— The time and manner of the metallization of the dike may be considered as open questions, for a solution of which we must wait until the mining extends below the permanent water-level of the for- mation. It seems most probable that the rock, at the time ot its intrusion, was pyritous, and the strata ad)0ining it no doUbt were. It is not impossible that there may have been a concentration of the precious metals in the dike from the surrounding beds, the result of the decay and change ot the pyrites diffused in the strata. On the other hand we may suppose that the dike has been the source, of the silver and gold we find in and about it. , ..j. j. ,„ In either case, the vertical laminated or stratiform struc- ture parallel with the walls has been an- important tactor in the distribution of the metals, and in the changes and modi- fications of the original condition of the dike. We may readily conceive of such vertical planes of structure affording planes or lines of least resistance to yertica movements while the abutting ends of the strata, in contact with the walls of the dike, would offer great resistance by friction The condition of the dike along a great part of its course seems to sustain and verify this hypothesis. There has evidently been considerable movement of parts of the dike 11 upon itself, resulting in the formation of heavy clay seams and brecciated layers of porphyry and ciuartz, sometimes occupying a medial position along the dike, sometimes at one side or the other, and again along the line of contact with the country rocks. Such seams and brecciated ground are sometimes wanting, and the structure and condition of the dike remain unchanged. The whole of the dike with the adjoining strata has been subjected to extensive move- ments and displacements, shown not only by breaks of continuity, but by the brecciated cross-courses and seams traversing both the igneous and stratified formations. One of these faults resulting in a throw of the northern portion of the Contention lode 150 feet to the west, and partly out- side of the west side-line of the claim, has recently led to expensive litigation. The faulting seam or break has been drifted upon between the two ends of the disjointed dike. It consists of a heavy breccia of fragments of the adjoining strata, together with a strong clay wall, marking the plane of greatest movement and slip. Its direction is southwest and northeast. In addition to the lateral movement, there have been ex- tensive vertical displacements, and it is probable that the lateral shifting may be referred to them. It would be pre- mature to attempt an exact description of the numerous faults and mechanic-al changes to which the dike has been subjected. They require further study and surveys. Mr. Isaac E. James, so long and well known upon the Comstock lode as an accomplished mine engineer, is now in charge, and has the subject under investigation. We owe the first determination of the nature and position of many of Ihe vertical faults and throws to his careful observation and surveys. Without now entering into precise descriptions of particular displacements, it will suffice to give a sketch indicative of what has occurred, producing such a confused recurrence of ore upon certain levels of the mine as to lead at once to the sup- position that there were several dikes of porphyry and ore over a breadth of five or six hundred feet. The movement appears to have been from the west east- ward and downward, the top of the dike being carried off in successive blocks by the sliding of masses of the stratified formations partly upon the planes of deposition of the beds, these dipping eastward and affording surfaces of easy movement; and partly upon steeper planes of fracture, generally dipping eastward, partly as shown in the outline sketch section, which may be taken as typical. This disruption of the dike, with its attendant fracturing and brecciation of the country-rock, accompanied by the movement of the dike upon itself, and the formation of heavy clay seams, has provided favorable places for the accumulation of ore. It is generally fountt in the softer and most broken por- tions of the dike, coincident, no doubt, with the regions of greatest original metallization and subsequent move- ment, attended by clay seams. Such clay seams, with the accompanying ore, have by some been considered as marking the limits of a second or subsequently formed vein, following the dike and independent of it. This theory, formed under the inspiration of the necessity of narrowing down the vein and throwing it as far west as possible, in order to secure a greater length of it upon the Head Centre ground, would be more defensible, if in the stopes any vein structure referable to a later deposition could be found. Instead of the fragments of broken porphyry, shale and quartz being Cemented together by quartz, they are loosely aggregated, and show clearly that the formation is due to mechanical force and attrition. The clay seams are also not certain boundaries of the ore; it occurs on both sides of clay seams. The clay cannot, therefore, be taken as separa- ting ore from waste. The seams, moreover, are not contin- uous, but give out, and in some parts of the dike are absent. 162 THE MINES, MTNEBS AND MINING INTEEESTS OF THE UNITED STATES. The only place upon the lode where water has been reach- ed is upon the Sulphuret claim. At this point, the lode intersects strata of limestone, and there is a bedded layer of ore following the stratification and connected with the dike. This ore is chiefly galena and iron pyrites. Very little has yet been taken out. So also in the Head Centre ground, at a higher level, where the dike intersects limestone, a bedded or interstratified layer of ore occurs. But the best examples of bedded deposits in the district are in the Toughnut and Good Enough claims before referred to. Bedded Ore Deposits. — These also are associated with dikes and vertical fissures nearly parallel with the Conten- tion lode. One of the longest and best defined is the West Side lode, which may be traced for about two miles until it passes into the underlying granite. Its northern prolonga- tion appears to cut across the Toughnut claim, and to con- nect with the vertical fissure and quartz croppings at the discovery-shaft on the Good Enough. A second line of fissure cuts across the anticlinal line of the formations at the open cut on the Toughnut, and across the whole breadth of the Good Enough into the Way-Up claim beyond. This has been followed on ore from the open cut to the Way-Up, and is connected with the chief lateral bedded deposits. A lode has also been followed in the same general direction from the claim called the Defense, across the Toughnut into the Good Enough. This lode is marked by very heavy crop- pings of quartz and flinty boulders lying above the limestone oa the surface. In the fissure extending into the Way-Up claim, the ore was found in layers and bunches following the plane of the vein, extending upward and downward along its course in nearly vertical shoots or ore-bodies, but breaking off into the adjoining strata in flat bed-like layers, particularly where the vein intersects the lower limestone resting on the noviculite beds. These bedded offshoots from the vein are often of considerable lateral extent, following the planes of stratification on each side. We cannot yet state with confidence what the exact origin of these bedded deposits is. They may be due to the decomposition of nodular masses, but they are generally deposited in the limestone as if by replacement. They may be regarded as filling irregular cavernous spaces eroded from the strata by metalliferous solutions, and without any regular boundaries. These bedded massei do not have a symmetrical arrangement of the ore, except such as may be referred to stratification or deposition by gravity. It is to be observed that these beds occupy the limestones rather than the siliceous or ar- gillaceous strata, as we might expect from the greater solu- bility of the limestone. Inasmuch as these limestone strata are folded and turned up in different directions, the inter- section of the limestone with the vertical plane of the vein is an irregular line. At such intersections, the walls of the fissure are corroded away, and are obliterated or are farther apart than where the fissure cuts the siliceous beds, the shales, or the quartzite5. In this respect the formations are similar to many abroad. Moissenet reprejents bodies or shoots of ore corresponding in their pitch to the intersection of strata with the plane of a vein. Wallace describes a series of strata in the north of England, consisting of limestone and shales traversed by lodes productive in the limestone, but poor when passing through shales. Other examples might be cited. In extent, the bedded masses of the Good Enough and Toughnut claims have been much greater than the ore- bodies of the vertical fissures, and it may be said that the greater part of the productions have been from the beds or flats. They extend irregularly between the two fissures a distance of about 400 feet, measured diagonally along the dip. It is noteworthy that they follow the stratification, and then suddenly break across it vertically, following a crack or break of the bedding, and then expand again horizontally for some distance to another dropping down by a series of steps from one layer to another in and between the lime- stones. The ores found in these bedded deposits in the limestone? are much more plumbiferous than the ore of the feldspPothic dikes. Galenite, blende, and iron pyrites are abundant in masses, which, within the reach of oxidizing agencies, are largely converted into oxides and rarbonatos. Bedded ores of this nature are also found in the limestone of the Blue Monday claim contiguous to the verticid fi.s.siires in the western prolongation of the West Side lode, or vertical ore-bearing fissure. This contiguity of the bedded deposits of the camp to the vertical fissures and dikes, and the oc- currence of bedded ores where the dikes intersect limestone strata, lead me to the opinion that the metallization of the district is due to the igneous intrusions, and that these are the true lodes, or " leads, " that may be followed with con- fidence in the search for ores. — A paper by Professor Wm. P. BlaJie^ Transactions American Institute of Min- ing Engineers. GEOLOGY AND MINING INDUSTRY OF LEADVILLE, COLORADO. THE present city of Leadville is situated in the county of Lake, State of Colorado, on the western flank of the Mosquito or Park Range, and on the eastern slopes of the valley of the Arkansas, near its head. Its exact position is in longitude 106° 17' west from Green- wich and .39° 15' north latitude, and its mean elevation above sea-level is 10,150 feet, taken at the court-house, in the center of the city. In this latitude the Rocky Mountain chain is made up of three main and more or less parallel uplifts; the Colorado or Front Range, the Mosquito or Park Range, and the Sawatch Range. The first rises immediately from the Great Plains, and to the traveler from the East, who has just passed over £00 weary miles of unincidented and practi- cally level country, represents at first view the whole Rocky Mountain system. It is a broad, somewhat irregular chain, whose more prominent peaks rise to a height of over 14,000 feet above sea-level, and whose flanks are deeply scored by the tortuous ravines or canons cut by streams flowing out to join the Platte and Arkansas Rivers. Beyond this range lies the mountain valley known as the South Park, a broad, basin-like depression, sloping gently to the southward, hav- ing an elevation of 8,000 to 10,000 feet above sea-level. The next nu.untain uplift, which forms the Western border of the South Park, is the Mosquito Range, a narrow and abrupt ridge having a trend nearly north and south, and whose prominent peaks also rise above 14,000 feet, the average height of its crest being nearly 13,000 feet above sea-level. It is characterized in general by long, easy slopes on the east toward the Park, and broken, abrupt slopes, which are nearly perpendicular walls near its crest, on the west toward the Arkansas Valley, while either flank is deeply scored by amphitheaters and deep gorges or canons of glacial origin. The Arkansas Valley is a meridional depression, about 60 miles in length by 16 in width, bordered by the sharp peaks of the Mosquito Range on the east, and by the equally high but broader mountain mass of the Sawatch Range on the west. This valley is not only remarkable as presenting some of the grandest mountain scenery to be found in the Rocky Mountains, but also on account of the great mineral wealth found along its borders, and the scientific interest of its geological structure. To the upper 20 miles alone will at- tention be especially directed here. At about this distance from its head the foot-hills of the bordering ranges close together, confining the present bed of the stream within a narrow rocky caBon^a few miles above the town of Granite. Above this cafion the valley widens out in broad grassy meadow-lands, on each side of which flat table-like terraces rise for several miles, with a gentle, almost imperceptible slope to the foot of the more rugged mountain spurs. Such topography suggests at once to the thoughtful observer that this portion of the valley was once a mountain lake, and, as will be seen Later on, the present investigation proves this to have been the case. On the upper edge of one of these gently sloping terraces, between Big Evans and California Gulches, and at the base of Car- bonate Hill, the extremity of a western spur of the Mosquito Range, is situated the city of Leadville. Discovery.— Hhe. history of the discovery and development of the mineral wealth of Leadville, which well illustrates the uncertainties and vicissitudes attendant upon a life of search for the precious metals in these wild regions, can be here but briefly touched upon. Among the hundreds of weary gold-seekers whom the so-called Pike's Peak rush brought to Colorado in the fall of 1859, only to find them- THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 163 selves the victims of exaggerated and chimerical stories, a few undaunted spirits pushed still further on into the recess- es of the then unknown mountain regions. Gold was first discovered in the same year on Tarryall Creek, at the head of the South Park, and early in the spring of 1860 two parties of prospectors, pushing westward still, stumbled almost simultaneously upon rich diggings in California Gulch, near the present site of Leadville. The news of the discovery spread with wonderful rapidity, considering the diflSculties of travel and sparseness of population in those early days, and eager miners flocked rapidly in. tLarge amounts of gold-dust were obtained from tnis gulch, and the town which was built along its banks, known as Oro City, is somewhat freely estimated to have had within a year 10,000 inhabitants. A similar generosity of estimate, so readily accorded to by- gone times of which accurate information is not attainable, places the aggregate production of the gulch in gold-dust at ten millions, while more conservative and better grounded opinions would give it a maximum of $3,000,000. At all events the richer placers were soon exhausted, and the population of the ephemeral city of Oro gradually decreased, the thousands having dwindled within three or four years to hundreds. At that day miners had gained most of their experience in th« gold fields of California, and to them silver ores were comparatively unknown and worthless. Some prospecting was done for the gold veins from the croppings of which the gold of the placer diggings was originally de- rived, and resulted in the discovery of several gold mines, such as the Printer Boy, Five-Twenty, and a few others, whose working gave a fitful gleam of renewed prosperity to the camp, but of whose actual yield no accurate data are attainable. Few, if any, however, suspected the value of the so-called " heavy rock," fragments of ironstained car- bonate of lead, which obstructed their sluices, being too dense to be carried down by the force of water alone, and which had to be thrown out by hand. Although many now claim to have known of the existence of the rich argenti- ferous lead ores of Leadville in earlier days, its practical discovery is apparently due to Mr. A. B. Wood, an educated and experienced miner and metallurgist, who first came to this region in 1874, and at once recognized the mineralogical character of the miners' worthless heavy rock." In 1875 the titles acquired by the gulch-miners under local laws had lapsed by limitation, and Messrs. Wood and W. H. Stevens located, under United States laws, the claims which now belong to the Iron-Silver Mining Company, covering, with remarkable accuracy, when it is remembered that at that day little or nothing was known of the geological structure of the region, the croppings of the ore-bearing stratum over a distance of more than a mile. The first practical test of the value of the ore was made by Mr. A. R. Meyer, a graduate of the Freiberg Mining Academy, and agent for the Saint Louis Smelting and Refining Company, who shipped a small lot to Saint Louis in the fall of 1876. Development. — Active prospecting over the whole region maybe said to have coftimenced in the spring of 1877, and the development of rich and productive mines from that time on advanced with a rapidity that is truly marvelous. This can be more easily comprehended by a comparative statement of the econoriiical conditions of Leadville in the spring of 1877, and at this same period in 1880, after a lapse of three years. At the former time the nucleus of the present city, known as the town of Agassiz, consisted of a few log cabins, relics of the -palmy days of gulch-minmg, scattered along the edge of California Gulch with an estimated population of less than 200 persons; its business houses con- sisted of a ten-by-twelve grocery and two small saloons. Three of the now productive mines had been discovered, but were still scarcely more than mere surface scratchings. A single lead furnace was planned, but not as yet erected. Com- munication was had with the outside world by stage or wagon, either across the crests of two high ranges to Denver, or by an almost equally difficult road to Colorado Springs. The latter date finds a broad, populous, admirably situated city, of 15,000 inhabitants, with 28 miles of streets, in part lit by gas, and furnished with hydrants and over fave miles of water-pipes. It has thirteen schools, with an average attendance of 1,100 pupils ; five churches, and three public hospitals, supported by charitable contributions; an opera house and numerous smaller theaters; six banks, and block after block of business stores, many substantially con- structed of brick or stone. Its assessable property is esti- mated at $30,000,000, ifnd 81,400,000 were expended during the year 1880 in new buildings and improvements. To sup- port this population are over thirty producing mines, with innumerable smaller mines and prospects, which are either producing small amounts of ore or give promise of so doing in a comparatively short time. Ten large smelting works are in active operation reducing the ore of these mines, and the value of the aggregate annual production of the district in gold, silver, and lead amounts to $15,000,000. Two lines of narrow-gauge railway connect i*. with the East, the one by wav of Denver, across the Mosquito and Front Ranges, the other following down the valley of the Arkansas to Pueblo, and these find ample remuneration, even over the heavy grades which the mountainous nature of the region traversed necessitates, in the business its mines afford. General Geology of the Mosquito Range. — The area now occupied by the Mosquito Range and the Upper Arkansas Valley was once the littoral re- gion of an Archaean continent or island, whose area is approximately expressed by the Archaean expo- sures of the Sawatch Range. The Rocky Mountain chain or eastern member of the Cordilleran system, in this latitude consists of a series of Archaean islands or continents which have never been entirely submerged. Some super- ficial geological observers have reasoned, Irom the fact that the later sedimentary beds are here generally found resting on the flanks of the Archaean masses, and dipping away from them often at high angles, that these strata once arched entirely over the Archaean masses in anticlinal folds. Were this the case, however, wherever the edges of folded strata were exposed around the eroded crest of the anticlinal, beds of invariably the same geological horizon would be found resting dirtctly on the Archaean, and their angle of dip should be sufficiently steep to carry the strata, in an ideal reconstruction of the original arch, entirely over the present mountain masses. In point of fact, however, along the flanks of the Archaean of the Colorado Range Car- boniferous, Triassic, and even Cretaceous beds are found at different points directly abutting against the crystalline schists ; and, with few exceptions, the angle of inclination of the sedimentary beds is far too low to carry them up to any considerable height, even on the present surface of the mountains, which must have been considerably planed down by long periods of erosion and abrasion. The sedi- mentary deposits of the Mosquito Range were, as above stated, originally deposited, in the Paleozoic seas, along the shores of the Sawatch island, and have been lifted to their present position by dynamic forces, which have resulted in a series of sharp folds and longitudinal faults, in which the upward movement has been almost invariably on the east of the fault line. There is every reason to suppose that, like the Archaean masses of the Colorado range, the Sa- watch island was never entirely submerged. But the fact that in the limited region studied absolutely the same bed, with one single exception, is found resting upon the Archaean rocks, shows, that the bottom of the ocean in which they were deposited had a comparatively smooth and regular surface, and that no steep cliffs existed along the immediate shore line, as in the Colorado Range, or that if they did exist within this area, they, together with their bordering sediments, have been entirely removed by sub- sequent erosion. The dynamic movements which resulted in the elevation of Mosquito Range, and produced its present complicated structure, can be most readily ex- plained on the generally received contraction theory, as the result of tangential pressure exerted upon the upper portion of the earth's crust in a direction approximately at right angles to the shore line, or radial to the center of the Sawatch island. The primal effect of such pressure exerted against a comparatively unyielding mass of crj'stalline rocks would be to compress the series of conformable sedimentary beds into longitudinal folds, whose principal axis would be at right angles to the direction of pressure. In the region under consideration the pressure would act from the east westward. The upper beds being relatively more plastic than those beneath, the pushing force would tend to produce anticlinal folds having a gentle slope to the eastward and a steep or approximately vertical inclination on the west. 164 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. That sedimentary beds, even though formed of apparently rigid and unyielding material, may, under favorable con- ditions of pressure, be flexible and plastic, is abundantly proved by observation in nature. Such plasticity must, however, have a limit, and when such limit is reached the tension produced by pressure will result in a fracture of the beds and a vertical displacement, or faulting. After the deposition of the sedimentary beds in the area under con- sideration, there occurred, during Secondary times, an in- trusion of igneous or eruptive rocks, which spread themselves out in sheets between the strata, and became, as it were, an integral part of the sedimentary formation. It was after the eruption and consolidation of these masses of igneous_ rock that the dynamic movements in question occurred. Sedimen- tary strata are comparatively thin sheets of homogeneous and coherent material, whose plasticity, other things being equal, would be proportionate to the average thinness of the bads. An augmentation of the aggregate number of strati- fication planes in a given thickness would increase the possible movement of each on the other along such planes, and, as in the familiar illustration of folding a number of shests of paper, the sharpness and number of folds into which, under given conditions of pressure, they could be compressed without fracturing. The igneous rooks, however, which were spread out in irregular and comparatively thick masses, having no bedded structure, but fracturing with equal ease in any direction, would render the whole series more rigid, and favor the production of faults rather_ than folds. Such is the case in this region, where the action of faulting and displacement is predominant over that of fold- ing, and particularly prominent in those portions where there is the greatest concentration of eruptive rocks, as in the district immediately adjoining Leadville. Archsean Rocks.— All the sedimentary rocks found within this area belong, geologically, to the Archsean, Paleozoic, or Quaternary eras. The Archsean rocks are, as well as the present limited data enable us to determine, the very oldest of the crystalline rocks, and may be con- sidered as the Rocky Mountain equivalent of the Lauren- tian of Eastern geologists. They consist here of granites, gneisses, and amphibolites. Granites. — -The granites are, in most cases, distinctly stratified and of undoubted sedimentary origin. In other cases the evidence is less clear and at times they even have characteristics of eruptive granites. In composition they belong to the normal type of granite, viz., those which con- sist of quartz, two feldspars, biotite, and muscovite. They are generally very coarse-grained and contain large twin crystals of orthoclase porphyritically distributed. In color they are gray or red, the latter tint being more prominent in the coarse-grained varieties; but in some instances fine- grained, deep-red granites, not unlike the famous Aberdeen granites, occur. There is sometimes a foliated structure approaching that of gneiss, especially where found imme- diately adjoining sedimentary rocks. Within the mass of normal granite occur large, irregular, vein-like white masses of secondary origin, corresponding to the German definition of pegmatite. They consist of large, inter-grown crystals of white orthoclase, microcline, and quartz, with irregular masses of muscovite. Gneiss. — Among gneisses the mica-gneiss is the prevailing type; hornblende gneiss, which is so frequent in other Archaean masses to the north, being comparatively rare. Their composition is similar to that of granites. In struc- ture, however, they present a great variety of forms, from the normal gneiss structure, with fine, even grain and con- stant composition in the different layers, to a coarse-grained porphyritical structure, containing large twin crystals of orthoclase and approaching that of the coarse-grained granites. Amphibolites. — ^The amphibolites are of less frequent oc- currence than either of the previously-mentioned rocks, and occur interstratified with them in layers of varying thickness, and sometimes in large lenticular bodies. Under this name are included hornblende rocks of less marked schistose structure than is common in normal gneisses or schists. They consist mainly of quartz, two feldspars, and hornblende, with not infrequent biotite. Paleozoic Formations. — Among Paleozoic formations beds of the Cambrian, Silurian, and Carboniferous groups have been recognized, although, owing to the difficulty of obtaining distinct fossils in such a highly metamorphosed region, the limits of the two first mentioned have not been definitely fixed. The question of the existence or absence of Devonian beds is one upon which too little evidence has been gathered for a definite decision. Such as it is, it is purely of a negative character, viz., that no undoubted De- vonian forms have yet been found in the Rocky Mountains, and that in the area under survey a slight, though-not un- questionable, evidence of non-conformity by erosion exists between the horizons of the Carboniferous and Siluriai;i periods. A comprehensive idea of the relative thickness and general character of these beds will be given by the subjoined table of -the average section obtained in Mosquito Range, to which is added, for purposes of comparison, a typical section of corresponding beds in the Wahsatch Range,* and a section of the same in the region of the Lower Colorado, made by Mr. C. D. Walcott.f Mosquito section ; 4,050-5,600 feet; possible unconformity by erosion. Carboniferous . 3,700 ft. to 4,000 ft. Silurian . . . 200 ft. .Cambrian . . . 200 ft. Upper Coal measure . limestones . . . Weber grits . . Weber shales , . . , Blue limestone . . Parting quartzite . . White limestone Lower quartzite . , . 1000 to 1500 Usoo-! 40 160 160 to 200 Blue and drab limestones and dolomites, with red sandstones and shales. Mud shales at top. Coarse white sandstones, passing inti consilomerates and siliceous and highly micaceous hales, with occasional beds of olaclc argillite and blue dolomitic limestone. Calcareous and carbonaceous shales, with (juartzite. Compact, heavy-bedded, dark-blue dolomitic limestone, of Dlack chert. Siliceous concretions at top, in form White quartzite. Light-gray siliceous dolomitic limestone, with white chert concretions. White quartzite, passing into calcareous and argillaceous shales above. Kanab (Colorado River) section ; 5,000 feet ; unconformities by erosion. Permian . . 855 ft. Carboniferous . 3,260 ft. Devonian . 100 ft. Cambrian . 786 ft. Upper Permian . Lower Permian .. . Upper Aubrey Lower Aubrey . . . Red Wall limestone Devonian. ... Tonto Group . , . 710 115 835 1,455 970 235 550 H- Gypsiferous and arenaceous shales and marls, with impure shaly limestone at base. Same as above, with more mtissivo limestone. Massive cherty limestone, witli gypsiferous arenaceous bed, passing down into calciferous sandrock. Friable, reddish sandstone, passing dcvn into more massive and compact sandstone below. A ffiw fillets of impure limestone intercalated. Arenaceous and cherty limestone 235 feet, with massive limestone beneath. Cherty layers coin- cident with bedding near base. Sandstone and impure limestone. Massive mottled limestone, with 50 feet sandstone at base. Tliin-bedHedj motiled limestono in massive layers. Green arenaceous and micaceous shales 100 feet at the base. Geological Exploration of the 40th parallel. t American Journal of Science, Saptember, 1880, page 222. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 165 Wahsatch Beetlon ; 30,000 feet; conformable. Permian . . 650 ft. Carboniferous 15,000 ft. Waverley. Devonian . . 2,400 ft. Silurian . . . . 1,000 ft. Cambrian . . , 12,000 ft. Permian . . . . Upper Coal - measure limestone. Weber quartzite Wahsatch limestone. > Ogden quartzite . . Ute limestone . . Cambrian 650 2,000 6,000 7,000 1,000 1,000 12,000 Clays, marls, and limestones, shallow. Blue and drab limestones, passing into sandstones. Compact sandstone and quartzite, often reddish; intercalations of lime, argillites, and con- glomerate. Heavy-bodded blue and gray limestone, with siliceous admixture, especially near the top. Pure quartzite, with conglomerate. Compact, or shaly siliceous limestone. Siliceous schists and quartzite. NoTK.— Planes of unconformity by erosion denoted by doable dividing lines. Cambrian. — Lower quartzites. — The beds assigned pro- visorily to this horizon, are prevailingly quartzites ; to them, therefore, the local name of Lower quartzites has been given. Their average thickness is about 150 feet, of which the lower 100 feet are composed of evenly-bedded white saccharoidal quartzites, while the upper 50 feet are shaly in character and more or less calcareous, passing by almost imperceptible transition into the siliceous limestone aboVe. At the base a thickness of a foot or more is conglomeritic and stained with oxide of iron. Above this is a heavy white quartzite of re- markably uniform and persistent character, from 40 to 100 feet in thickness, always very readily distinguished as a white line in the numerous sections afforded by the cafion walls of the range. Primordial fossils belonging to the Potsdam epoch were found in the shaly beds above this quartzite. In its upper portion also occurs a remarkably persistent stratum, about a foot in thickness, of siliceous limestone, to which the local name Red Cast bed has been given, from the red concretions resembling casts of fossils which are constantly found in it. The siliceous dolomites near the dividing line between this and the overlying series contain local develop- ments of serpentine, resulting from metamorphic Action, which range in color from a dark, beautifully veined verd- antique green to a homogeneous mass of yellow tint re- sembling beeswax, not only in color but in texture. ■Silaria,n.^ White limestone.— The beds of this horizon, to which the above local name has been given from their prevailing light color as distinguished from the formation immediately succeeding, consist in the main of light-drab dolomites, containing, besides the normal proportion of lime and magnesia, from 10 per cent, upwards of silica. They are thinly .bedded, compact rather than crystalline, often with conchoidal fracture, and only rarely of absolutely white color. Their characteristic feature is the occurrence in certain beds of concretions of white, semi-transparent hornstone or chert. Their average thickness is about 150 to 160 feet. Parting quartzite.— Above the White limestone occurs a remarkably persistent bed of rather variable thickness, to which the local name of Parting quartzite has been given, and which, in the absence of any direct geological evidence, has been included in the Silurian group. It has an average thickness of from 10 to 40 feet, and is not to be distinguished lithologically from the numerous white quartzites found at other horizons. It is, however, of geological importance as determining the dividing line between the Silurian andCar- boniferous groups. The fossil evidence obtained as to the age of the above formation is rather meager, being confined to a few Niao-ara forms found near its base, and to fornis ot the Trenton and Calciferous epochs contained in float frag- ments which probablv came from this horizon. . , , , Carboniferous.— .Bfee limestone.— The beds included under this local name, and which, from the fact that they form the ore-bearing rocks par excellence ot the region, it is most important to be able to trace accurately, are fortunately marked by persistent and characteristic features. iney have an average thickness of 150 to 200 feet. Their compo- sition, which is remarkably regular, is that of normal do o- mite, cOBtaining a very ^all percentage of silica. I" color they are of a deep grayish blue, often nearly black above, while some of the lower beds are lighter, approaching the drak and, where locally bleached, difficult to distinguish lithologically fro-u the underlying White hmestone. The upper bed is well marked by characteristic concretions of black chert, frequently hollow in the center, and often Con- taining within their mass distinct casts of fossils. ,T}ie typical rock is generally granular or coarsely crystalline, and has a characteristic ribbed structure produced by irregular lines and spots of white crystalline dolomite, resulting from the dissolving out and redeposition of this material. The principal characteristics, therefore, which distinguish the ore-bearing limestone from the underlying White limestone are, first, its color ; second, its composition, the latter being invariably more siliceous ; third, its texture, which is gener- ally crystalline, while the latter is more frequently compact ; fourth," the chert secretions, which in the former are always black and in the latter light colored or white ; to which may be added the fact that the Blue limestone is generally more heavily bedded than the Whit«. The fossils obtained, which were comparatively abundant in the upper beds, contain, among prevailing Coal-measure forms, some which belong to the Lower or Sub-carboniferous of the East. Weber grits. — The rocks included under this head form a series of relatively great thickness and of prevailing sili- ceous composition. At their base, immediately above the Blue limes'.one, occurs a series of shales and quartzites of very variable thickness and composition. The thickness may be roughly estimated at 150 feet. The quartzites are not to be distinguished from other quartzites of the region, while the shales are sometimes green, more frequently black, and highly carbonaceous argillites which are generally impregnated with pyrites, and contain at times beds of impure anthracite coal. Locally there are developments of impure dolomite, which, as well as the shales, are often very rich in coal-measure fossils. The Weber grits proper, which have an average thickness of about 2,500 feet, consist of coarse white sandstones, passing into conglomerates, containing pebbles of Archsean rocks, most frequently white or pinkish quartz. They have a varying admixture of finely-dissemijiated carbonaceous ma- terial, which at times gives them an almost black color. Besides the sandstone there are abundant schists, generally siliceous, and always rich in brilliant white mica. At irregular intervals through the horizon are found beds of compact black argillite, sometimes calcareous, and about the middle of the series two persistent beds of blue-gray dolpmite, frdm ten to fifty feet in thickness. tipper Coal-measure Limestone — ^Less favorable opportu- nities were offered for studying this group than either of the preceding, and its limite are therefore less defi- nitely determined. It consists mainly of calcareous beds, alternating with coarse reddish sandstones and quartz- ites, more or less micaceous, and sometimes passing into mica-schists. Its lower limit is drawn at the base of the first important limestone bed above the siliceous series of the Weber grits. This limestone, locally called the Robin- son limestone, from the fact that it forms the ore-bearing horizon of an important mine of that name in the Ten-mile district, is noticeable from the fact that it is the only true limestone observed among the calcareous beds of the re- gion; the others are all practically dolomites of varying purity. As developed in this mine it is of a drab color and of peculiarly compact texture, resembling a lithographic stone. These textural characteristics are apparently not persistent, however, not having been recognized in other portions of the region. Several beds of blue-gray limestone, and one of a very fossiliferous black limestone, were ob- 166 THE MINES, MINERS AISD MINING INTERESTS OF THE UNITED STATES. served on the western flanks of Mount Silverheels, and in the upper horizons of the Ten-mile district were found mud shales, recalling the Permo-Carboniferous beds of the Wah- satch. No fossils other than coal-measure forms were found, however. The red sandstones of this group are dis- tinguished from the overlying Triassic rocks by a deeper color, approaching a Venetian red, whereas in the latter it is rather a light brick-red. Quaternary. — The Quaternary formations are the Lake Beds and the Recent formations, including drift and moraines. The former were deposited in the bed of a fresh-water lake at the head of the Arkansas during the in- termediate flood period of the Glacial epoch. The material of which they are composed is therefore not essentially difierent from that of the moraine material, but it is dis- tinguished from it by its bedded structure. These beds consist at times of fragments, more or less rounded, of various rocks which make up the range, frequently with calcareous cement, and at other times of a mixture of clays resulting from the decomposition of porphyry, and of de- composed granite, and still again of earthy marls. In the recent beds are included not only the later alluvial deposits, where these are accumulated in sufficient depth to obscure the underlying rock, but also moraines and rearranged mo- raine material, for which the local name of " Wash " has been preserved. The Paleozoic rocks described above have an aggregate thickness of between 4,000 and 5,000 feet. In the seas in which they were deposited, however, a continuous sedimen- tation went on through the successive Triassic, Jurassic, and Cretaceous periods, it being at the close of the lat- ter that the dynamic movements took place which resulted in the folding and fracturing which raised the Mosquito Range to its present position. From data available their thickness may be estimated at not less than 7,000 feet. Probably the greater part, if not the whole, of these sed- iments were already accumulated at the bottom of the ocean before the intrusion of the Secondary eruptive rocks now found in the region, and which will be next de- scribed. An explanation of their exceptionally crystalline structure may therefore be found in the fact that they solidified under the pressure of a thickness of at least 10,000 feet of superincumbent beds. Eruptive or Igneous Rooks. — The eruptive rocks of the district are mostly of Mesozoic age, and belong to the general types of porphyries* and diorites, or those in which * In the ab52nce of any universally accepted classification and definition of eruptive rocks of Secondary agj, it seems important to state here the system adopted and the reasons therefor. To the use of the term porphyry, as applied to a type of rooks of definite a'e and composition, the very valid objection may be brought that in its original acceptation it simply defined a certain type of structure, viz., that of a fine-grained or amorplious groundmass containing larger crystals porpnyritioally imbedded. On the other hand, the custom of applying this term to orthoclastic porpliyritio rocks of Secondary age has become so firmly established by long-continued usage that it would seem unwise to abandon the present use of the term until a satisfactory substitute were found which would be re- ceived by all lithologistB. The normal quartz-porphyry is a por- phyritic compound of quartz, prevailing ortnoclase, and sgme plagioelase feldspar, with mica or hornblende, in which the ground- mass contains more or less isotropic amorphous material. A granite- porphyry, on the other hand, is a porphyritic rock of similar composition in which the groundmass contains only cry.stallinE and no amorphous material. It is distinguished from granite, structur- ally, by the fact that it has a porphyritic rather than an evenly crystalline texture, but, like granite, it contains microscopically only fluid and no glassy inclusions. The rocks described above are, however, essentially crystalline as viewed under the microscope, though certain specimens contain a limited amount of amorphous material, and glassy inclusions are found in them, but less fre- quently than fluid inclusions. Strictly defined, therefore, they cannot be considered as granite-porphyries, though frequently indistinguishable from them in the hand-specimen. Rosenbusch has proposed (Jiosenbitsch, Muss. Gesteine, pp. 85-87) to separata all such rocks from the quartz or felsite-porphyries, and call tlK'in micro-granites. To call the rooks in (luestion micro-granites, linw- ever, would be to add a new and .sjinewhat ambiguous term to the already suffieiently confused lithological nomenclature, without gaining thereby in clearness of definition, since although they approach granite in microscopical structure, they are widely diver- gent from it in geological habitus. It has been judged best there- fore, to preserve the tsrm quartz-porphyry, which is sanctioned by local usage, and of which they form the extreme crystalline type. monoclinic or triclinic feldspars are relatively predominant. Of Tertiary eruptive rocks, which are closely allied to. the products of modern volcanoes, the only representatives are andesites, which occur at Biiifalo Peaks, and rhyolite of the crystalline variety classed by Richthofen as Nevadite. White or Leadville Porphyry — Constitutes the most distinct and well-characterized variety of the porphy- ries. It is a white, homogeneous-looking rock, composed of quartz and feldspar, of even, granular texture, in which the porphyritical ingredients, which are accidental rather than essential, arp small rectangular crystals of white feldspar, occasional double pyramids of quartz, and fresh, hexagonal plates of biotite, or black mica. More frequent than either of the above are aggregations of fine leaflets of muscovite, or white mica, which are a secondary product resulting from the decomposition of feldspar. The rock is always in a more or less advanced state of decomposition, which is first shown by the opaqueness of its feldspars and the develop- ment of spots of muscovite, and in its extreme stage in the neighborhood of the ore deposits results in a general soften- ing of the mass, due to the kaolinization of the feldspar. Among the miners of Leadville it is known also as " Block Porphyry," on account of its tendency to split up into angular blocks ; and also as " Forest Rock," from the depo- sition of dendritic oxide of manganese on the surfaces of such fragments. Its composition is that of normal quartz porphyry, containing about 70 per cent, of silica. Other Porphjrries.^-All the other forms of porphyry found, which, though presenting a number of varieties in the field, have essentially the same general composition, both mineralogical and chemical. They consist generally of quartz, two feldspars, and biotite ; hornblende occurring as an essential ingredient in only one variety. The crystal- line ingredients are easily distinguishable by the eye, and there is, therefore, no danger of confounding them in the field with White porphyry. This crystalline structure, on the other hand is often so far developed that they are not readily distinguishable by the nntechnical eye from granites ; . as such, indeed, they are generally classed by the miner. A careful examination, however, readily reveals their struc- tural difference, which is that in them the larger crystals are enclosed in a finer-grained groundmass, whereas between the crystals of granite there is no such intervening and ap- parently structureless material. Lincoln porphyry. — The principal subdivision of this group has been called Lincoln porphyry, from the fact that it is typically developed in the mountain mass around Mount Lincoln. It consists of quartz, orthoclase and plagioelase feldspars, and biotite. Its most striking peculiarity is the frequent occurrence of large crystals of rather glassy-looking orthoclase feldspar about one inch in length. The quartz, which occurs in double pyramids, appears to have a rounded outline, and frequently a delicate rose tint. The mica is found in hexagonal plates, generally decomposed and of greenish color. Although the type-rock does not occur in the immediate vicinity of Leadville, a variety known as Gray porphyry, which does not differ in its essential constituents, and occupies generally the same stratigraphical position, is a prominent feature in the geology of that region. It has a prevailing dark greenish-gray color, due to the alteration of the constituents of its groundmass ; but when found in the mines, where it is more thoroughly decomposed, it is quite white, and only to bo distinguished from the White porphyry by the traces left of outlines of former crystalline ingredients. The large feldspars are often finely developed, but the groundmass is relatively more prominent than in the Lincoln porphyry proper. The Sf)ecimens analyzed yielded 66 per cent, of silica for the Lincoln porphyry and 68 for the Gray. Sacramento porphyry. — The second important variety of quartz porphyry receives its name from the locality of its typical occurrence, which is at the head of the Sacra- mento Gulches. At first glance it does not differ from the Lincoln porphyry, except in the absence of the large feld- spar crystals. It contains the same large rosy quartz-grains, two feldspars and biotite, but is distinguished fr6m it by carrying hornblende also. It is in general comparatively- fresh, and perhaps more likely to be confounded with granite than even the Lincoln porphyry. This rock does not opcur on the surl'ace within the Leadville region, although the THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 167 variety next to be described, which occupies a nearly equiv- alent stratigraphical position there, may be allied to it. Pyritiferous porpkyry.^-This rock, which forms an extreme- ly important mass in the Leadville region, is found in such a universally decomposed condition that its original con- stituents cannot definitely be determined. It is generally of a white color, with grayish-green or pinkish tints, com- ?aratively fine-grained, with no traces of the large crystals, a it can be distinguished small grains of white feldspar, quartz, biotite . which is generally altered to a chloritic sub- stance, and pyrite. The latter ingredient, from which it derives its name, is found abundantly scattered through the rock in crystals, often so fine as to be indistinguishable by the naked eye. They occur at times within the crystals of quartz and biotite, and are hence supposed to be an original constituent of the rock. They are frequently con- centrated along cleavage planes, sometimes associated with finely disseminated crystals of galena. Pyritiferous por- phyry is readily distinguished from the White porphyry by Its crystalline constituents. It differs from the Sacramento and Gray porphyries by a relatively small amount of plagio- clase feldspar, and from the former by the absence of horn- blende. Its most strikingly distinctive feature is the amount of pyrites which it contains, wliich is estimated to constitute, on the average, 4 per cent, of its mass. Besides the above- mentioned varieties are the Silverheels, the Mosquito, and the Green porphyries, only the former of which is found in any considerable mass. The others are generally fine-grained, of a greenish tinge, and present no important typical features, having approximately the same ultimate composition as those already mentioned. Dioritic Kocks. — DioHte. Of the rocks in which plagio- clase feldspar is the characteristic ingredient the crystalline ■ type or diorite, which is the structural equivalent of granite, is of comparatively rare occurrence. Porphyrite. — Its porphyritic variety, known as porphyrite, is, however, extremely well developed in the region, so that an excellent opportunity was aiforded for its study. As the rocks themselves do not occur in the Leadville region, nor have any economic bearing, no further men- tion of them need be made here. Rock Formations— Distribution.— The superficial distribution of the various sedimentary formations, or the relative area covered by their outcrops, being a function of, or dependent upon, erosion, are intimately connected with the existing topographical structure of the region. Were erosion the only factor to be considered, the Archaean rocks would be found exposed continuously on the west side of a line, approximately representing the old shore line, and in the deeper drainage valleys and anticlinal axes of the east- ern side. The displacements of the numerous faults which run through the region have, however, considerably modi- fied this normal distribution. In point of fact, the central portion in the latitude of Leadville is mainly covered by the outcrops of Paleozoic sedimentary beds and intruded masses of porphyry ; the Archaean exposure being confined to deep glacial amphitheatres near the crest of the range, and to minor masses which represent the eroded crests of anticlinal folds. In the northern portion of the area, Arch- £ean rocks are exposed along the main crest of the range and in the deep cafion valleys and glacial amphitheaters of the streams which flow into the Platte ; the Paleozoic beds being found only on the easterly sloping flanks of the in- cluded spurs. On the western side of the range, owing to the displacement of the great Mosquito Fault, the area adjoining the valley of the East Fork of the Arkansas is covered by beds of the Weber grits formation, while a bor- dering fringe of outcrops of Lower Quartzite, and White and Blue Limestone beds is found on the northern and eastern rim of Tennessee Park. The western limit of the Paleozoic beds is a line running southeasterly from the forks of the Arkansas to the crest of the range at Weston s Pass, and southward along the crest approximately in a north and south line. West of this line are found only the a-ranites and schists of the Archrean, and irregular dikes and intruded masses of porphyry. In the area included be- tween this line and the crest of the range are triangular zones of easterly-dipping sedimentary beds, in some cases formini- a continuous series from the Cambrian to the Upper Coal-measures, cut off abruptly by fault lines, and suc- ceeded again on the east by Archaean exposures. On the west of the crest the Paleozoic beds slope regularly back beneath the floor of the South Park, the Archaean rocks being found only in the deeper hollows at the head of the streams. Beyond the limits of the map the outcrops of the more resisting beds of Mesozoic age form parallel ridges, running across South Park from north to south. Eruptive — Distribution. — The most .striking fact con- nected with the distribution of the Secondary eruptive rocks is that an east and west line drawn through'Leadville repre- sents very closely the limit of the two main varieties of porphyry recognized above. South of a line drawn through Empire and Horseshoe Gulches, the White porphyry is absolutely the only one which has been found within the limits of our exploration, while it is practically wanting north of the line through Evans and Mosquito Gulches, the only exceptions being dikes of comparatively insignificant size, and not absolutely identical in structure. Mode of Occurrence. — In their mode of occurrence the type feature is that of intrusive masses, which are developed on a scale of unprecedented magnitude, and follow certain horizons with remarkable regularity. These inter-bedded sheets are found to have a maximum thickness at certain points, or along certain lines, and to become thinner in pro- portion to their distance from such central point, which is probably near a vent or channel through which they were erupted. This form resembles the structure of the intrusive masses of the Henry Mountains, which have received from Mr. G. K. Gilbert the name of Laccolites. Nor is the resemblance confined to external structure, but extends also to internal texture and mineralogical composition. It is probable that this mode of occurrence of eruptive rocks, viz., as intrusive masses, which originally did not reach the surface, but were forced up to a certain horizon and then spread out between the beds, is far more common than has hitherto been suspected by geologists. It is difiicult to conceive of the conditions under which a fused mass could pry open strata to a width of 1,000 feet or more, overcoming the weight of 10,000 feet of superincumbent rocks, and spread itself out in a continuous sheet between the beds to a distance of ten miles from the point or line of eruption. That they did exist, however^ can be clearly demonstrated in this region, thanks to the intense action of folding and faulting, and the enormous amount of erosion which has taken place since such eruption, and afforded exceptional opportunities for a study of their form and extent. Intrusive Masses. — The main sheet of White porphyry which lies upon the suriace of the Blue limestone had its principal vent at the head of Four Mile Creek, where it can be seen breaking through the underlying beds, and forming the main mass of a hill 2,000 feet high. The gradually thinning outcrops of this sheet can be traced southward continuously along the east slopes of the ranee nearly to Buffalo Peaks, and back again on the west side from Weston's Pass to Empire Gulch. The continuity of the outcrop on an east and west line is broken by faulting and erosion, but wherever the Blue limestone is found this sheet occurs, with some unimportant exceptions, directly above it, following all its undulations. Of less uniform extent are sheets of White porphyry at lower horizons, generally between the Blue and White limestone, whose principal development is in the vicinity of Leadville. One important mass can also be seen on the south wall of Horse- shoe Creek, breaking up across Weber grits beds and then spreading out between the strata. Intrusive masses of the other porphyries are found devel- oped on an even greater scale than those of the White por- phyry. Although no single sheet has been traced over so great an area as in the case of the former, they have a much greater vertical distribution, extending up to tlie Jurassic and possibly even into Cretaceous beds. In one single sec- tion over fifteen sheets, many several hundred feet thick, were counted between the Blue limestone and the top of the Carboniferous. The great aggregate thickness of beds thus added to the conformable Paleozoic sediments must have given them in their original position an arched form, which is now seen in a very marked change in the strike of out- crops, where there has been the greatest accumulation of intrusive masses, as on the line of Mount Silverheels on the east, and of Sheep and Jack Mountains in Ten-Mile District 168 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. on the west of the range. In many cases quite thin sheets show most remarkable uniformity of thickness and position over comparatively large areas ; for instance, along the walls of Mosquito Canon a twenty-foot bed of porphyrite, occurring between the Blue and White limestone, can be traced continuously several miles. While these intrusive sheets follow by preference one definite plane, they not in- frequently change their horizon, crossing an intervening bed ; in one case also a second sheet is seen to have forced itself horizontally through the mass of an already interbed- ded sheet. Dikes.— While by far the greater mass of igneous rocks occurs in the form of intrusive beds, the dike form is by no means uncommon, although the normal dike with regular parallel walls, generally figured in text-books, is seldom seen ; on the other hand, large masses, of no regular form and apparently quite independent of stratification lines, which are intermediate between the normal dike and the in- trusive sheet, are quite common. Dikes are generally ibund in the crystalline or Archaean rocks, and may be best ob- served in the glacial amphitheaters. They are generally narrow sheets from 20 to 50 feet in thickness, and of no great longitudinal extent. A not uncommon form is the " inter- rupted dike," a succession of outcrops of porphyry or por- phyrite on the same general line, separated by short inter- vals of the enclosing rock mass. These may be projecting points of one main sheet, or independent chimneys, the for- mer seeming more probable from their close proximity and identical composition. Dikes within dikes are found as well as intrusive sheets within intrusive sheets. Dikes are also found extending up through the crystalline rocks into the overlying Paleozoic beds ; wherever observed on canon walls they were found to end abruptly at a definite, although not always the same, horizon. Opportunities for actually tracing the dike as the feeding-channel of an intrusive sheet were comparatively rare. Relative age. — The evidence as to the relative age of the different varieties of porphyry, though generally satisfac- tory, offers some apparent contradictions ; these 'may, how- ever, be explained on the supposition that the eruption of any one variety was not strictly confined to a single definite- ly marked period, but was intermittent. In other words, after a main eruptive mass had consolidated and been suc- ceeded by eruptions of other rocks or from difierent mag- mas, a renewed activity took place in the magma of the first rock, which resulted in later intrusions of less magnitude. Thus the White porphyry is definitely the oldest of the Secondary rocks. The great mass of the Sacramento por- phyry, whose main vent apparently adjoined that of the former, between the head of Little Sacramento and Big Evans Gulches, contains caught-up portions of the White porphyry and of the Weber grits. The main sheet of Gray porphyry in the Leadville region occurs above, sometimes replacing the White porphyry, while other intrusive masses of this rock are found cutting across both White porphyry and the sedimentary strata which enclose it. It is also signi- ficant that the White porphyry is the most thoroughly crys- talline of all the Secondary eruptive rocks, and generally occupies a lower geological horizon. On the other hand, dikes of White porphyry have been found cutting across interbedded masses of Lincoln porphyry, which seems to be the equivalent in age and position of the Gray. Contact phenomena. — There is a notable absence in the region of strongly marked contact phenomena in the sedi- mentary beds, that is, changes which have resulted from the contact of a fused mass, such as a baking or vitrification. The changes which are found in them near intrusive masses are evidently rather the result of the action of percolating waters. Within the eruptive rocks themselves the usual phenomena observed near the outer surface of cooling mass- es are found here along their contact with the enclosing rock, viz., a finer grain and different relative distribution of mineral constitutents as contrasted with the average charac- ter of the rock, and a tendency to development of laminated structure at the actual contact. Angular fragments ot the enclosing rock are, morever, so abundant at times along the contact as to form a regular breccia. Glacial phenomena. — Of the forces of erosion and abrasion which have removed an aggregate thickness of about 10,000 feet of sedimentary beds, together with an unknown amount of eruptive rocks, from a great portion of the area examined, only the latter phases, viz., those which have acted during and since the Glacial period, come "directly under observa- tion. As already stated, the present investigations afford evi- dence of the existence during the Glacial period of two epochs of maximum cold, separated by one of higher tem- perature. In its general bearing this fact presents no nov- elty, but is merely confirmatory of observations already made by American, as well as European geologists, who have arrived at the same conclusion by reasoning from dif- ferent classes of phenomena, astronomical as well as terres- trial. The warmer intervening period here was, owing to the melting of enormous ice masses and great precipitation, I one of great floods, which caused a rapid degradation, as well as the removal of existing detritus, and where, as at the head of the Arkansas Valley, conditions were favorable to the formation of a lake, by the damming up of the waters, the coarse detrital material was deposited in regular beds, of relatively great thickness at its bottom. While, therefore, the actual outlines, as here given, might be modified by more complete data, the information obtained is quite sufficient to establish the following important facts: I. That the present moraines have been deposited over the Lake beds; consequently that the glaciers by which they were formed existed after the deposition of the latter and the draining of the lake in which they were deposited. II. That since the latter epoch there has been an elevation of the mountain, mass, relatively to the adjoining valley, amount- ing in one place to over 1,000 feet. This is proved by the existence of Lake beds at an elevation, on the spurs adjoin- ing Iowa Gulch, of 11,000 feet; by the angle at which they now stand on the ridges adjoining the Arkansas Valley, and by the fact that where they are nearly horizontal, in the center of the basin, they have an average level of less than 10,000 feet. Valleys. — In studying the configuration of the present surface the valleys may be separated into three classes as regards their age and manner of formation: I. Glacial valleys. II. Valleys of erosion. III. Surface valleys. The first, which owe their main outline to the carving of glaciers, have in cross-section a characteristic U outline, head in a glacial amphitheater, and have a comparatively straight course. This original form is always more or less modified by the same action which has formed the other two kinds of valleys. To this class belong all the large canons or valleys on the east side of the range, and the East Fork of Arkansas, Evans, Iowa, and Empire Gulches on the west. The second class, formed exclusively by the action of ruiining water, which has cut through surface accumula- tions into the hard rock mass, have a V shape; that is, the sides are proportionately less steep, and the bottom narrower than the former, while their course is generally tortuous, being affected by the unequal resistance offered by different positions or textures of rocks. They also want the amphi- theater-shaped head. The third class are also valleys of erosion, but cut out of surface accumulations, such as drift or Lake beds, which have not yet become solid rock. They are in consequence relatively wide and shallow, and have a straighter course than the second class. The most striking difference between these and ordinary valleys of erosion is seen on a geological map, where the outline of outcrops crossing the latter would have a re-entering angle in the direction of the dip, whereas the former would cause no divergence in the course of such outlines. This class wovild be anywhere of more recent origin than the other two, and in this region the second class is younger than the first. As instances of surface valleys may fie mentioned. Little Evans, Georgia, and Thompson's Gulches. The former drains the amphitheater on the south face of Prospect Mountain, being separated from Big Evans Valley only by a moraine ridge formed by the glacier of the second epoch. It is thus proved thatthe amphitheaters were carved out by the earlier set of glaciers, since that from the Prospect Mountain amphithea- ter was originally a branch of the main glacier from the Evans amphitheater, and it was the moraine of the second Evans glacier which, being placed across the mouth of the Prospect Mountain amphitheater, necessitated its seeking a new outlet for its waters. That at one time ice must have THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 169 filled the amphitheaters to their brim, and been in places over 2,000 feet thick, is proved by their configuration and the position of erratic blocks. Ore Deposits. — A brief outline having thus been given of the geological structure of the region, it will be next in order to show the general characteristics of its ore deposits, and give a brief rfisumi of the conclusions which have been arrived at with regard to their origin and mode of formation. Clasaification. — To a scientific description of natural objects, the most valuable aid is a rational and universally accepted system of classification. The first obstacle one encounters in attempting a description of mineral deposits is the ab- sence of such a classification. A rational system should take account, not only of the present outward form of the deposits, but also of its origin and manner of formation. Mining geology in the United States has hereto found its principal discussion in the courts of law ; and the authority there generally accepted is the classical though now some- what antiquated work of B. von Cotta. This book, which is a most excellent compilation of what was known about the ore deposits of the world twenty-five or thirty years since, though containing manypreviously unrecorded observations, presents no claims as a work of original scientific investiga- tion ; and the classification adopted by Von Cotta takes ac- count only of the external form of the deposits. It divides them into four classes of veins or lodes : 1. Ordinary. {Gewohnliche-gdnge.) 2. Bedded. {Lager-gdnge.) 3. Contact. [Contact-gdnge) 4. Lenticular. [Lenticular- gdnge.) The terms most current among mining men, which are probably derived in great measure from the above seem to be : True fissure veins. Contact veins or deposits, Pipe or rake veins. Blanket Veins or Deposits. — ^The first are popu- larly supposed to be the most valuable, since they occupy, in general, a nearly vertical position, and may extend in- definitely in depth. The term blanket deposit, on the other hand, which is probably derived from the manias of the Spanish miners, seems to be generally applied in rather a derogatory sense to any horizontal sheet of ore. The last,whoseproper definition has given rise to some discussion, is derived from local usage in a small district in the north of England, where valuable lead deposits are found in the Car- boniferous or mountain limestone. According to Mr. West- garth Foster this local usage classes as Rake veins fissures analogous to the faults in the Coal-measures, but which con- tain lead ore. When these are wide above and gradually contract below they become Oash veins. Pipe veins, on the other hand, are irregular deposits in the limestone, in shape like the cavern so often found there. When these occupy a nearly horizontal position between the strata they become Flats, or flat veins. Since Von Cotta's time the most im- portant general treatises on mineral deposits are those of Joh. Grimm, of Pribram, and of Dr. A. von Groddeck, of Claus- thal, which includes not only the ores of metals, but all minerals useful in the arts, such as coal and salt. Grimm's classification is very thorough, and takes account of the origin of the deposits, but is too complicated for general ap- plication. Von Groddeck divides all mineral deposits into four general classes : 1st. Bedded deposits [geschichteten Lager stdtten), including those which have been deposited at the bottoms of seas or oceans, whether mechanically, or as chemical precipitates- coal, gypsum, salt, etc. 2nd. Massive deposits (massigen Lagerstdtten), a rather ill-defined division, including large masses of metallic minerals impregnating a particular rock. 3rd. Deposits filling pre-existing cavities (Hohlraums-ful- lungen), which include all veins or deposits, whatever their .shape, whose vein-material is essentially difierent from the enclosing rock. ' , , r j^-u \ 4th. Metamorphic deposits (meiamorphisc/ie Lagerstatten,) including those which result from a more or less complete metamorphism of the rock itself by metallic combinations. In the last edition of Johnson's Encyclopaedia Prol. R. Pumpelly, in his article on ore deposits, proposes the lol- lowino- six divisions, in which the first two are based on the texture or mineralogical composition of the enclosing rock; and the three following considered as due chiefly to pre- existing open cavities or fissures : I. Disseminated concentrations. 1. Impregnations. Fallbands. II. Aggregated concentrations. 1. Lenticular aggregations. 2. Irregular masses. 3. Reticulated veins. 4. Contact deposits. III. Cave deposits. IV. Gash veins. V. Fissure veins. VI. Surface deposits. 1. Residuary deposits. 2. Stream deposits. 3. Lake and bog deposits. Undsr gash veins Pumpelly would include those fissures which are limited to a certain bed or rock mass, while, his fissure veins extend across difierent rock masses, without any definite limit. A discussion of the above systems of classification, which have been quoted simply as aids in the subjoined description, would exceed the limits of the present abstract. That the difierence of origin and manner of formation should be a more important factor in the classi- fication of ore deposits than has been the case hitherto is generally admitted, but, owing to the fact that the definite determination of such origin requires more laborious and. expensive investigations, especially from a chemical point of view, than .geologists are in general able or willing to make, trustworthy data: are as yet too meager to form a basis for a general classification from this standpoint. The ut- most that can be claimed by this memoir is to contribute to the general store of knowledge reliable facts in regard to an important group of ore deposits, and to point out the bearing of those facts upon the generally received theories of ore deposition, and the modifications which they may suggest in present classifications. The earlier geologists devoted much speculation to the subject of the origin of metallic minerals in ore deposits, and arrayed themselves on the side respectively of the Neptunists or Plutonists, according as they believed them to have been brought to their present position by descending or ascending currents, whether gas- eous or liquid. As pure theory has been gradually modified by the results of actual investigation, the upholders of the two opposing schools have come to concede, in this, as in other questions of general bearing in geology, an element of truth even in the views of their opponents. Only extremists maintain that any series of geological phenomena admit of but one explanation, or are due to one universal immediate cause. It is generally agreed that subterranean waters, how- ever deep-seated their apparent source, came originally from the surface. It is moreover proved that no rocks are ab- solutely impermeable to water, but as on the earth's surface, so within its solid crust, there is a constant circulation either through capillary pores, where it is not readily visible, or through the larger and more apparent channels formed by joints, cleavage planes, faults, dikes, and stratification lines, the direction taken by such waters varying with difierent local conditions. In the case, therefore, of ore deposits which are derived from aqueous solutions circulating within the earth's crust, a class which is constantly augmented by scientific investigation, the question as to the immediate source of the metals in the solutions from which they were deposited, whether above or below the present position, is one which must be determined independently in each in- dividual case, and to which no general answer can probably ever be given. Leadville Deposits. — The present investigation has proved of the ore deposits of Leadville and vicinity as re- gards their origin — I. That they have been derived from aqueous solutions. II. That these solutions came from above. III. That they derived their metallic contents from the neigh- boring eruptive rocks. IV. That in their original form they were deposited not later than the Cretaceous epoch. And as regards -their mode of formation — I. That the metals were deposited from their solutions main- ly as sulphides. II. That the process of deposition of the vein-material wa3 170 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. a chemical interchange, or actual replacement of the rock-mass in which they were deposited. III. That the mineral solutions or ore-currents concentrated along natural water channels and followed hy preference the bedding planes at a certain geological horizon ; but that they also penetrated the mass of the adjoining rocks through cross- joints and cleavage planes. And with regard to distribution — I. That the main mass of argentiferous lead ores is found in calcareo-magnesian rocks ; II. That the siliceous rocks, porphyries, and crystalline rocks contain proportionately more gold and copper. As regards classification it is more difficult to make a de- finite statement. Von Groddeck's term " metamorphic de- posits" would include all the deposits of the district, with the possible exception of certain veins in the Archsean which have riot as yet been sufficiently developed for thorough investigation. These veins would, in any event, come under the popular definition of true fissure veins, even though they should prove to be metamorphic, or the result of the alter- nation of country rock in place. Those not in the crystalline rocks would, in the main, come under the popular definition of contact veins, but they not infrequently pass directly into pipe veins, as in England; while, on the other hand, the fissure veins, which some have considered true fissures, cor- respond to the English pipe or rake veins. They would, however, be excluded from Pumpelly's class of gash veins, inasmuch as they do not fill pre-existing fissures. There is no evidence that the deposits in limestone were made in pre-existing cavities ; on the contrary, the caves, which are not infrequently found, are plainly due to the action of sur- face waters, and are sometimes hollowed out of ore bodies as well as of limestone. When ore is found in them it is through the accident that surface waters have followed or crossed a previous ore-channel. Moreover, the thickness of the original limestone bed, or the distance between the en- closing strata, is found to be proportionately reduced if the amount of replacement has been exceptionally great. Secondary Deposition. — As in the deposition of minerals from percolating waters the process is a practically continuous one, and by changes in the character of the waters, minerals already deposited may be redissolved and deposited again in another place or form, the statement that a mineral is in its original form or position may be only relatively true. The action of surface waters, that is, those which have penetrated the rock masses directly from the surface during recent geological time, is, however, one that can be readily traced by the preponderance of combinations of oxygen and chlorine with the metals of an ore deposit in those portions which are near the present surface. To such combinations, therefore, the term secondary may be safely restricted in speaking of our deposits. The deposits of the Leadville region are peculiarly exposed to the action of surface waters ; first, because of the relatively great precipi- tation ; and, second, because of the geological structure, the numerous faults and displacements bringing the ore-bearing horizon near the surface in a great number of points, and erosion having largely removed from above them the more impermeable sedimentary beds, and left a covering of rela- tively permeable porphyry. This is more especially the case in the immediate vicinity of Leadville, the value of whose ores is greatly enhanced by the predominance in them of oxides and chlorides. It may also be observed, in con- sidering the distribution of minerals, as shown by present developments, that the proportion of secondary products is less in the higher altitudes, where the waters are imprisoned by frost during a comparatively . larger portion of the year. Composition. — The prevailing and by far the most im- portant ore, from an economical point of view, is argen- tiferous galena, and its secondary products, ccrussite or carbonate of lead, and kerargyrite or chloride of silver. Lead is also found as anglesite or sulphate, as pyromorphite or phosphate, and occasionally as oxide in the form of litharge or more rarely minium. Silver frequently occurs as chloro-bromide, less frequently as chloro-iodido, occasion- ally as sulphuret, and very rarely in the native state. Che- mical investigation has failed to detect sufficient regularity in the proportions of chlorine, bromine, and iodine com- bined with the silver to justify the determination of distinct mineral species. Gold occurs in the native state, generally in extremely small flakes or leaflets. It is also said to have been found in the filiform state in galena. As accessory minerals, are: Zinc blende, and silicate of zinc or calamine. Arsenic, probably as sulphide and as arseniate of iron. Antimony, probably as sulphide. Molybdenum, in the form of wulfenite, and locally copper, as carbonate or silicate. Bismuth as sulphide, and its secondary product, a double- carbonate. Tin has been detected in furnace products. Iron occurs as an ore, though in the Leadville deposits it may be considered as an essential part of the gangue or matrix in which the valuable ore is found. In the former case it occurs in considerable bodies, as pyrite or sulphide, and anhydrous oxide, or red hematite with a little magnetite. Gangue. — The other components of the ore deposits, which may be considered as gangue, although this term is perhaps more strictly applicable to non-metallic minerals, are : Silica, either as chert, or a granular cavernous quartz, and chemically or mechanically combined hydrous oxides of iron and manganese. A great variety of clays or hydrous silicates of alumina, generally very impure, and charged with oxide of iron and manganese, the extreme of purity being white normal kaolin, containing at times sulphuric acid in appreciable amount. Sulphate of baryta, or heavy spar. Carbonate of iron, pyrite, and sulphate of lime, are comparatively rare in the deposits of Leadville itself. The miner's term, "Chinese talc,'' has been preserved for a sub- stance which is found with singular persistence along the main ore-channel, or at the dividing plane between the White porphyry and underlying limestone or vein material, and also at times within the body of the deposit. It is com- posed of silicate and a varying amount of sulphate of alu- mina, to which no definite composition can be assigned. It is compact, semi-translucent, generally white, and very soft and easily cut by the finger-nail. It is very hygroscopic ; hardens and becomes opaque on exposure to the air. Paragenesis. — The metals were all brought in as sulphides. The evidence of this is found in the fact that they form the interior or unaltered kernels of masses of lead ore, that sul- phurets already increase in proportion as the more unaltered portion of the deposits is reached, and in the fact that a basic sulphate of alumina is left as the result of the action of sulphurous waters on porphyry along the main ore- channel. The silver was without doubt originally con- tained in the galena, and where now found as chloride free from lead is a secondary deposition. While the sulphide of lead was undoubtedly deposited as such, it seems more likely that an actual chemical interchange took place be- tween the sulphide of iron and the carbonates of lime and magnesia, the latter being carried away as soluble sulphates, and the former deposited either as carbonate, or directly as oxide. As regards the relative age of lead and iron, it is difficult to determine definitely whether galena was ori- ginally deposited in the dolomite, and the process of re- placement of the latter by oxide of iron went on around it later, or whether the two were deposited at practically the same time, as sulphides, the pyrites being in so much greater amount as practically to enclose the galena, so that, being thus first exposed to oxidizing action, and perhaps also more susceptible to it, they are now completely oxidized, while the galena is only partially so. That the replacement of dolomite by oxides of iron and manganese has been going On in comparatively recent times is quite evident. With regard to the immediate source from which the vein materials were derived, chemical examinations of the vari- ous rocks of the region made on specimens taken from portions at a distance from ore deposits, and in a compara- tively unaltered condition, show that while the sedimentary and crystalline rocks contain no precious metals, appreciable .imounts of gold, silver, lead, and baryta may generally be found in the eruptive rocks. An ii'lea of the amount of material available in these rocks may be obtained from the following estimate of the possible contents of a sin- gle variety of porphyry of the licadville district, the Pyritiferous porphyry. The figures are deduced from the superficial area of its outcrop, as shown on the map, its probable thickness, and the average percentage of metals contained in it, deduced from chemical examination of THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 171 eleven specimens taken from different parts. They are, in round numbers, 250,000,000 ounces of silver, 9,000,000 tons of galena, and 100,000,000 tons of limonite, whicii repre- sent fairly the average proportions of each in Leadville ores as a whole. As regards the agents of secondary depo- sition, chloride was found in the surface waters, and also in all the dolomites and limestones ; traces of bromine were also detected in the latter. Phosphoric acid is found in the White porphyry, and in comparatively large amount in the Lingula shales which overlie the Blue limestone. Carbonic acid, as is well known, exists everywhere in the air and water ; it is chemically combined in lime and magnesian rocks, and mechanically in siliceous rocks. Distribution. — Tke principal ore-deposits of the region are found at or near the contact of the Blue limestone with the overlying porphyry. The contact of the main sheet of White porphyry has, whenever it has been examined, shown evidence of the passage of ore-currents, and in the region of Leadville, al- though not every inch, or every foot even, yields an appre- ciable quantity of silver, no considerable area has yet been examined without finding bodies of valuable ore. The ore is, however, by no means confined to the surface of the limestone, but often extends into its mass, pinching out however in depth; sometimes the bodies thus developed show no visible connection with the surface, but it is evi- dent that they originally came from it. While for some as yet unexplained reason the horizon of the Blue limestone was exceptionally favorable to the deposition and concen- tration of ore, valuable deposits are occasionally found else- where, generally along bedding planes or contact surfaces, less frequently on jointing planes. The deposits in crystal- line rocks, which are popularly supposed to be true fissure veins, have, as before stated, been but little studied. A brief mention of a few of the best known mines will, per- haps, give a better idea of the geological distribution of ores than any general statement. On the east side of the range the Monte Oristo deposits, which occur on the east flank of Quandary Peak, consist of galena impregnating one of the upper quartzite beds of the Cambrian horizon. The Phil- lips mine, in Buckskin Gulch, is a concentration of gold- bearing pyrites along a bedding plane of the Cambrian quartzite, in the neighborhood of a dike or intrusive mass of quartz porphyry. The Criterion mine, now deserted, had large renticular bodies of ore replacing this quartzite, ad- joining which are natural caverns hollowed out of such bodies by surface waters, while the ore channels extend up into the" White limestone above. The Orphan Boy, in Musquito Gulch, is also apparently an impregnation or re- placement of quartzite beds of this horizon. In the mas- sive of Mounts Lincoln and Bross the Blue limestone has been the scene of the most extensive ore deposition. Here it is overlaid by a sheet of Lincoln porphyry, while innu- merable dikes and cross-bodies of other porphyries exist, which could not be accurately traced oat in the limited time that could be given to this region. The ore bodies of the Russia, Moose, and other mines extend irrei^ularly from the surface into the mass of the limestone, while in the Dolly Varden mine, on Mount Bross, the ore is found in that portion of the limestone which immediately adjoins a vertical dike of White porphyry. In the Sacramento mine, on the spur between Sacramento and Four-mile Gulches, rich galena and carbonates are found in irregular bodies in the Blue limestone ; the Sacramento porphyry, which origi- nally overlaid it, has been largely removed by erosion, and the connection with the contact surface, if it existed, is not to be seen. On the main crest of the range the Peerless, Bado-er, New York, and other mines find their ore at or near the contact of the Blue limestone and White porphyry. West of the crest, the Dyer mine, near the head of Iowa Gulch, has long been worked on rich bodies of galena, asso- ciated with some copper, which occur in the White lime- stone. The Colorado Prince and Miner Boy have a gash vein carrying gold in the Lower quartzite. The Black Prince has veins of sulphurets extending up into the White limestone. The Dania, J. B. Grant, and other shafts on Yankee Hill have found small bodies of iron on the White limestone contact. The Great Hope found the Parting quartzite impregnated with gold to such an extent that it -cGuld be profitably Worked. The Ocean is said to have ob- tained gold from the lower quartzite and the Nevada tunnel has found ore bodies, possibly belonging to a similar hori- zon, though, as it is on a fault line, it is difficult to say what was their original position. The Ready Cash gets gold ore from a vein in the granite, while above the horizon of the Blue Limestone, the Green Mountain, Ontario, Tiger, and others, have found ore in gash veins in the Pyritiferous porphyry and at its contact with the Weber grits. The most valuable ore bodies, however, are those which occur as a replacement of the Blue limestone. At times the original dolomite has been so largely removed that its geological position canonly be recognized by the bounding beds. In the subjoined de- scription, however, the horizon is spoken of by its geological name, whether it be represented by dolomite or a mass of iron-stained clay, granular quartz, or chert. The reader must also bear in mind that when outcrops are spoken of not the actual surface of the ground is referred to, but the _ surface of rock in place under the Wash or other superficial' detritus. In a great portion of the shafts mentioned this rock is only reached after passing through a hundred feet or more of detrital matter. Iron Hill Mines. — Of the three principal groups of mines those of Iron Hill present the simplest type, both in geological structure and in the character of their ore de- posits. It is that of a block of easterly-dipping beds, capped by porphyry, with a fault on its western side, by whose dis- placement these beds have been lifted over a thousand feet above their western continuation, and in which the ore de- position has taken place on the surface of the upper lime- stone bed, at its contact with the overlying porphyry. This simple type obtains only on the southern end of Iron Hill, and even then only in a somewhat modified form, the north- ern presenting, as will be seen later, the extreme of compli- cation. The southern face of the hill has, by the erosion of the deep V-shaped valley of California Gulch, been left so steep that its surface is but thinly covered by detrital material, and east of the Iron fault, which is marked by slight depression, the outcrops of the succeeding beds can be readily traced up its slopes from the Lower quartzite, immediately overlying the granite, to the main sheet of White porphyry, which forms its summit. Besides this normal senea of beds are two intruded masses of porphyry of later age, and allied to, though not absolutely identical with, the Gray porphyry. One occurs near the base of the Blue limestone, and has its greatest thickness at the fault line, thinning out to the eastward, and disappearing midway between it and the point where the Blue limestone reaches the bed of the gulch. The other has its greatest thickness at this point, where it cuts across the upper portion of the Blue limestone at so small an angle with its stratification planes that it forms the contact between it and the White porphyry for some distance up the slope on either side, and then passes up into the White porphyry, also gradually thinning out and disappearing. The average strike of the formation in this vicinity is a little west of north, and the beds dip to the eastward at an angle of about 12° at the outcrop, which shallows to 7° and even less under the sum- mit of the hill. Iron fault. — The average direction of the line of the Iron fault is a little east of north, but its course is very crooked, as proved by actual development in shafts and winzes in the Garden City, L. M., Lingula, Iron, and Codfish-Ball claims. It has an average inclination to the west of 65°, and its movement of displacement, though no shaft has yet reached the Blue limestone to the west of it, is probably more than one thousand feet. Were the Carbonate Hill beds carried back at the angle of dip thus far determined it would give a still greater thickness of White porphyry above the limestone immediately adjoining the fault, but such thickness cannot be calculated on, since there are good grounds for assuming that the dip shallows, and even that the beds basin up before reaching the fault. Dome Hill. — South of California Gulch the structure is more complicated, and the opportunities for accurate study of the rock surface diminished by great depth of Wash and underlying Lake beds, on the ridge which separates it from Iowa Gulch. Its expression will be made clearer if the displacement is considered as a downward movement of the beds on the west of the fault, instead of an upward move- ment of those Qn the east, as is. actually the case. - The 172 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. downward movement of the western block has, then, south of California Gulch, been distributed between the Iron fault proper, and a second fault further east, just below the Rock and Dome mines, whieh is connected with the former by a cross-fault following the bed of California Gulch from the Garden City shaft up to within 600 feet of the Montgomery quarry. Moreover, between these two faults is a third, run- ning below the Robert Emmet tunnel, in the gulch, to con- nect with the Iron fault, and enclosing thus a wedge-shaped piece of ground, which has been lifted up and compressed into an anticlinal fold. As a result of the upward move- ment of this wedge-shaped piece of ground, Blue limestone is found outcropping on the south side of the gulch directly opposite the Lower quartzite on the Globe ground, and the Columbia, Ben Burb, and others, have been enabled to strike the contact comparatively near the surface; on its west side the beds dip steeply towards the Iron fault. It is probable that before reaching Iowa Gulch the Iron fault merges into the axis of a synclinal fold, in which case the normal con- tinuation of the Iron fault might be considered to be formed by the California Gulch and Dome fault, since the latter becomes beyond Iowa Gulch the axis of an anticlinal fold, as does the northern extremity of the Iron fault. Moreover, evidence of a westerly dip in beds between the Dome and Iron faults is found in the relatively greater depth at which the Blue limestone was reached in the Coon Valley shaft near the latter than in those fiirther east. This region is worthy of being systematically prospected, being within the principal ore-bearing area of the district. Mineral deposits. — As shown by present developments the principal deposition of ore has taken place along the con- tact plane between the Blue limestone and overlying White porphyry, and extended to greater or less depth into the mass of the limestone; in several instances large deposits have been formed within the body of the limestone, being probably on the line of some natural cleavage plane or fissure, which caused a deviation of the ore-currents from their normal course. Gangue. — ^The vein material or gangue consists of hydra- ted oxides of iron or manganese, silica, and clay. The iron varies from a hard, compact, more or less siliceous, brown hematite to a simple coloring matter of the clay. Manga- nese is found sometimes in fine needle-like crystals of pyro- lusite, but mainly occurs in a black clayey mass, known to the miners as " black-iron." Silica occurs either as a blue- black chert, or as a granular, somewhat porous mass, hardly distinguishable from quartzite. Clay is found in greatly varying degrees of impurity, from a white kaolin down, and is a product of the decomposition of porphyry. It occurs either in place or as an infiltrated mass. Besides this should be mentioned the "Chinese talc" of the miners, found mainly at the actual contact. Ore.^-The ore is principally argentiferous galena and its secondary products, viz., carbonate of lead or cerussite, and chloride of silver; as accessory minerals, or those of less frequent occurrence, are sulphate of lead or anglesite, pyro- morphite, minium, zinc blende, and calamine. Native sul- phur is found in one instance as a result of the decomposi- tion of galena, and native silver, from the reduction of the chloride. Mine worlcings. — The principal mine workings may be divided into the following groups, commencing at the north : 1st, the main Iron mine workings, including the north Bull's- Eye; 2nd, the Silver Wave and Silver Cord workings, in- cluding south Bull's-Eye; 3rd, Lime and Smuggler work- ings. Beyond California Gulch: 1st, the La Plata work- ings; 2nd, the Rock and Dome workings. Iron mine.— This group has an area of about 25 acres of underground workings, being the most considerable of any single mine in the district. They have been driven a dis- tance of over 1,500 feet along the contact from the outcrop of the Blue limestone. Here the contact hag been found productive over an unusually large area, the main ore body extending diagonally through the claims in a northeast di- rection from the croppings, with an average width of 200 feet. In this area the ore currents have penetrated irregu- larly into the body of the limestone, and ore bodies of 30 and 40 feet in thickness have been developed. It is found that the limestone, while keeping its general inclination to the eastward, is compressed into -lateral folds which have produced a series of troughs and ridges within the mass. The relation of the distribution of rich ore bodies to these minor folds is not, however, as clear as in the deposits of Carbonate Hill. In the lower part of the mine, oetween the sixth and seventh levels, is a body of Gray porphyry, cutting up across the strata into the AVhite porphyry, which would appear to have influenced a concentration of ore on its flanks. The developments here have been pushed al- ready to a sufficient depth to show an increase in the pro- portion of sulphurets in the ore and a decrease in the tenor of silver, which would be naturally expected from dimin- ished action of surface waters. Silver Wave group. — In the Silver Wave group the con- tact surface has been found relatively unproductive, but large amounts of rich ore have been found in irregular lenticular bodies, standing nearly vertical, and extending downwards 60 to 100 feet from the surface of the limestone. That these are along water-channels isprovedby the discovery of recent caves washed out of the ore bodies themselves, or immedi- ately adjoining them, which have evidently been formed by the percolation of surface waters at a comparatively recent date. The general direction of these bodies is also north- east, buton a line convergent with that of the main Iron body. Smuggler and Lime. — On the south end of Iron Hill, adjoining California Gulch, there is evidence of another zone where the limestone has been largely replaced by vein material, in which, however, present limited developments have disclosed no large bodies of very rich ore. La Plata. — The La Plata mine has been developed by a tunnel run in near tiie contact, but with a direction a little west of that of the strike. As in the Silver Wave, but little rich ore has been found on the contact, but large lenticular bodies standing in a nearly vertical position have been found within tlie limestone extending to a depth of 100 feet below the tunnel level. The Rock and Dome. — Near the mouth of the Rock tunnel once stood a huge outcrop of "hard carbonate" from which came the first silver ore that was discovered in the region. The main workings of these two mines are in a bonanza which is near tlie croppings, and which, like those on Iron Hill, has a general northeast direction. The ore in this body occurs mostly near the contact, extending at places to a considerable depth into the limestone. It is much more siliceous than that of the Iron mine. A second more or less parallel body, on a line with that of the La Plata body, may be looked for in the lower working of either mine. Future explorations. — It is difficult to oifer suggestions as to manner of exploration to those who so well understand the character of their deposits as do the managers of mines in this region. Practical experience has already proved to them that not only should the contact be thoroughly ex- plored, but indications of ore bodies extending into the mass of the limestone should be carefully followed. They should also look for bodies of porphyry which may cross the for- mation, either as dikes or irregular sheets, since they are likely to be accompanied by a concentration of ore at no great distance ; the Gray porphyry forms such bodies more commonly than the White. It is probably a fruitless task to search for valuable ore deposits below the horizon of the Blue limestone, although there is always a remote possibility of finding veins in the underlying granite. Ore indications on fault planes are also likely to prove deceptive; the evi- dence afforded by present developments goes to show that, while small fragments of ore are found which have probably fallen into the fissure, and a certain amount of secondary deposition from waters which have passed over the original deposits has taken place there, the ore to be obtained from them will at the best no more than pay the expenses of exploration. To the west of the fault line, however, the contact un- doubtedly exists below the porphyry and probably contains valuable bodies of ore, which, however, as present expe- rience abundantly shows, are not continuous over the whole surface. In locating a shaft for such exploration the proba- ble continuation of already existing bodies should be care- fully calculated, taking into consideration the apparent lateral movement that would be caused by the fault-displace- ment. Directly opposite the Iron mine it may be calculated that at least a thousand feet of unproductive rock will have to be passed through ; this thickness is probably less as one THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 173 goes south, and the least depth will probably be found on Dome Hill, or beyond in Iowa Gulch, with the disadvantage in going south that the centre of ore developements as at present known is further removed. North Iron Hill. — Explorations in the Adelaide- Argen- tine group of mines on the northern end of Iron Hill overlooking Stray Horse Gulch, have developed a geological structure of an intricate and complicated nature. Only a brief sketch of its main outlines will here be presented. Along a line running southeast from Fryer Hill toward Mount Sheri- dan, the sheet of White porphyry cuts across the Blue lime- stone, or splits into two bodies, there being on the northeast of this line one body of White porphyry above the Blue limestone, and one below, between it and the White lime- stone. On Iron Hill this cutting across occurs in the region under description, in which, morever, two minor sheets of White porphyry were forced in, the one in the- middle of the Parting quartzite, the other in the body of the White lime- stone near its base ; furthermore, two bodies of Gray por- phyry were afterwards introduced, the main one into the mass of the White limestone above the lower sheet of White porphyry, and a smaller one above the Parting quartzite, be- tween it and the offshoot from the main general sheet of White porphyry. In the movements of folding and displace- ment these beds were lifted by a fold and cut off by the Adelaide cross-fault, which runs diagonally from the Iron to the Mike fault. The whole upper part of the fold was then planed off by erosion, which entirely removed the por- tion of Blue limestone above the cross-cutting mass of White porphyry. During the period of ore deposition the currents followed" the under surface of the porphyry body, and in these mines the main deposit of pay-ore has consequently been found at its contact with the Parting quartzite, although some replacement probably took place also along the basset edges of the Blue limestone. In the Argentine tunnel, which is driven in a direction nearly at right angles to the strike, the beds are found with a dip at first of 25° southeast, which shallows as one proceeds. One crosses in succession from the mouth inwards, or ascending in the geological scales ; 1. Lower White porphyry. 2. White lime^storie. 3. Offshoot from Gray porphyry body. 4. White limestone. 5. Main Gray porphyry body. 6. White limestone. 7. Offshoot from Gray porphyry body. 8. White limestone. 9. Parting quartzite. 10. 'White porphyry. 11. Parting quartzite. 12. Ore horizon. 13. Blue limestone. 14. White porphyry (overlying). The supposed contact of White porphyiy over the basset edges of the Blue limestone is not seen, being above the tun- nel level. The actual contact between the upper surface of the Blue limestone and White porphyry is barren in the tun- nel, but has produced ore in the Hynes shaft on the Camp Bird claim to the south. The main ore body extends above the tunnel level, on the surface of the Parting quartzite, westward into the Camp Bird Claim, and east and south on the dip into the Adelaide claim. Small bodies of carbonate of lead were also found in the Adelaide ground, at the con- ■tact of a small body of Gray porphyry which does not cross the tunnel, and the main White porphyry. Moreover, be- sides the surface of the Parting quartzite, replacement is found to have gone on to a considerable extent in the White limestone also, without, however, developing much rich ore. In the Discovery tunnel of the Adelaide, on Stray Horse Gulch, a small body of Blue dolomite was found immedi- ately over the Parting quartzite, which is apparently a por- tion of Blue limestone which had not been separated from the overlying rocks by the cross-cutting White porphyry. In such a complication of intrusive bodies the only maxim for the miner is, to follow all productive contacts so long as there are signs of ore or vein material. Carbonate Hill Mines.— The geological structure of Carbonate Hill is very similar to that of Iron Hill, in that it is formed by a series of easterly-dipping beds, broken on the west by aline of fault or displacement. Outcrops are also exposed on its southern face by the erosion of Cali- fornia Gulch, but in a less complete series owing to its being shallower and proportionately wider, in consequence of which its bounding slopes, being less steep, are more thickly covered by surface dibris. The fault is nearly parallel to that of Iron Hill, and, like it, merges into the axis of an anticlinal fold on the north. In the southern half of the hill, however, the movement of displacement is distributed in part to a secondary nearly parallel fault, a short distance to the west. Of the southern continuation of these faults less satisfactory data are available, but they are supposed to merge together before crossing California Gulch, and proba- bly pass into an anticlinal fold under the Lake beds to the southwest like the Dome fault, the normal continuation of the Iron fault. As on Iron Hill, also, there is evidence of a basining up, as they approach the fault, of the beds of the relatively downthrown mass on the west ; in other words, of a synclinal structure. Formations. — The series of beds of which it is composed is essentially the same as that given in the Iron Hill section, but the distribution of the latter intrusions of Gray or Mot- tled porphyry differs somewhat in detail. Where these cross the beds, either as dikes or sheets, there is a noticeable en- richment of the ore bodies. One main sheet of Gray por- phyry is found at or near the base of the Blue limestone, which apparently cuts up to a higher horizon in different portions of the hill. A second sheet is found in the White limestone in California Gulch, but as none of the under- ground workings have penetrated as yet to this depth, there is no evidence to show whether this is a distinct sheet or merely an offshoot from the main body. Vein material. — The materials composing the ore deposits of Carbonate Hill are essentially the same as those of Iron Hill ; they may perhaps be said to be less rich in bases of iron and manganese, and proportionately more in silica, therefore less favorable for the smelter, but this characteris- tic is rather one to be confided to individual mines, or parts of a mine, than in such a general way. Silica occurs less frequently as chert and more commonly as a very finely granular and somewhat porous quartz rock, than on either Iron or Fryer Hills. The ore is either galena or its second- ary products, carbonate of lead and chloride of silver. In one instance native silver has been found. Exceptionally good opportunities are offered for observing the action of re- placement, and the gradual passage from dolomite into earthy oxides of iron and manganese. The workings not yet having reached the great distance from the surface that they have on Iron Hill, no such definite evidence is found of decrease in the action of surface waters, producing oxida- tion and chlorination of the original deposits. The limit of the zone of oxidation would morever be expected to be fur- ther from the surface, on account of its lower altitude. Mine workings. — ^The underground workings of Carbonate Hill may, for convenience of description, be divided into three groups. 1st. A southern, including the Carbonate, Little Giant, and Yankee Doodle claims to the east of the main fault and the .S^tna and Glass-Pendery claims below or to the west of it. 2nd. A central group, including the Crescent, Catalpa, and Evening Star claims east of the fault, and the minor workings of the Lower Crescent, Catalpa No. 2, Lower Evening Star, Niles & Augusta, and Wild Cat west of it. 3rd. A northern group, consisting of the Morning Star, Waterloo, Henriette, Maid of Erin, and other claims above the fault line, and the Forsaken, Halfway House, and Lower Henriette below it. Carbonate group. — In this group of claims, the principal developments have been made on what is practically one main body, running in a northeasterly direction from the outcrop in the Carbonate claim. A noticeable feature ol the structure is a prominent fold in the limestone, which bends down sharply to the east, and rising again forms a narrow trough. This is best seen in the main Carbonate in- cline at about 350 feet from its mouth, and can be traced through the adjoining Little Giant and Yankee Doodle claims, running parallel to the ore body, of which its crest forms the southeastern limit. Approximately parallel to this, several minor folds or complications can be seen in the Car- bonate workings. The ore body is narrower in the Yankee Doodle and Little Giant claims, but widens out as it ap- proaches the surface in the Carbonate ground, having bar- 174 THE MINES, MINEES AND MINING INTEEESTS OF THE UNITED STATES. ren streaks corresponding to the minor folds mentioned. From the actual cropping of the southeastern portion of this body was taken the first ore discovered on Carbonate Hill. The region to the southeast of the fold has thus far proved barren of rich ore, but the explorations are hardly sufficient to warrant the conclusion that another bonanza does not exist in that direction. The influence of the fold as determining the deposition of ore may be ascribed to the compression of the beds produced by it, and the consequent partial arresting of ore currents, giving them time to deposit their metallic contents'. Carbonate fault. — The Carbonate fault runs nearly on the dividing line of the Carbonate and iEtna claims, cutting acrosa the extreme southwest edge of the former and the northeast corner of the latter. It is well shown by a shaft sunk on this claim which has followed its plane ; as thus developed, it stands with an inclination of about 60' west, shallowing somewhat in depth, and having a movement of displacement of only about 250 feet. Within the opening were found some fragments of ore, and the fault material was slightly impregnated with chloride of silver. The slickensides surfaces are smooth and clearly defined, and the beds on either side have the same angle and direction of dip. In the jEtna and Glass-Pendery claims the contact has thus far proved practically barren, the principal ore extracted having been obtained from lenticular bodies within the limestone, lying mostly within the former claim. Judging from the few points at which its level has been determined, the general surface of the limestone would appear to slope westward, although as before stated, at the actual fault line it dips east. Pendery fault. — A short distance west of the Glass shaft a second fault, apparently nearly parallel and having the same angle of inclination with the Carbonate fault, cuts off the limestone, no explorations west of this line having reached below the White porphyry. It is to be regretted that the persistent refusal of the owners of the Glass-Pen- dery to permit an examination of their mine renders the data with regard to this fault, which has such an important bearing upon future explorations, less full than could have been desired. Its probable continuation has been traced, however, southward to a connection with the Carbonate fault, and northward through the Washburne and Saint Mary workings, where it appears to be a combination of minor folds and faults, and into a probable anticlinal fold north of the Niles & Augusta, and west of the Halfway House. Evening Star group. — In the second group of mines the workings above the fault have developed a second bonanza or ore body, nearly parallel to the one already mentioned, and separated from it by a comparatively barren belt of ground. In the Crescent claim it is rather thin and spread out somewhat irregularly, but concentrates and becomes deeper in the Catalpa, reaching its maximum, iDoth of breadth and thickness, in the Evening Star claim. In the upper portion of the latter the entire body of limestone hai been replaced by vein material, a remarkably large proportion of which is pay ore; but to the eastward the ore currents have penetrated to less depth, and in the lower workings unreplaced dolomite is found, at times only separated from the overlying porphyry by a few inches of clay and " Chinese talc." The actual southeastern limit of the bonanza has not yet been reached, however, and present explorations, exten- sive though they are, cover such a comparatively small proportion of the possible area of ore bodies, and afford such meager data for generalization, that it is with extreme reluctance that I speak of even possibly barren ground. A fact worthy of mention here is the occurrence of a narrow dike of Gray porphyry, standing nearly vertical, and having a northeasterly direction, cutting across the ore horizon at the western edge of the bonanza. This may be an offshoot from the heavy sheet of Gray porphyry which has been proved by the lower workings of the mine to underlie the main ore body, and has probably influenced the great concen- tration of ore in this mine. A second fiict worthy of note is the occurrence of ore in the White porphyry near the main shaft of the Evening Star mine. Such instances of the diver- gence of ore-currents into the mass of the overlying porphyry are extremely I'are. In this case the deposit consists largely of pyromofphiteaad carbonateof lead, with a little sulphide, and forms the binding material of small angular blocks of porphyry. It is therefore in part certainly, and possibly altogether, of secondary origin. The ground west of the main or Carbonate fault in this central group has been com- paratively little explored, as no considerable ore bodies have yet been developed in it. The fault itself has nowhere been cut by underground working, and its existence is only proved inferentially, both here and on the more northern portion of the -hill, by the relative difference of level of the contact above and below its assumed line. Its displacement in the Crescent ground, where the workings on either side most nearly approach each other, viz., those of the Crescent in- cline and the Lower Crescent shaft, are not more than 170 feet. In the Catalpa pay ore is found to extend nearly to the sur- face above the fault line; its existence below has, however, not yet been thoroughly tested. In the Evening Star the new No. 6 shaft has been sunk through a body of iron into a remnant of unreplaced dolomite, and is probably in the lower half of the Blue limestone or ore-bearing horizon. The lower Evening Star shaft is said to have developed a small body of ore, which would not be more than 100 feet below the bottom of the former, but in calculating the amount of displacement it must be borne in mind that in one case the ore is near the bottom, in the other probably at the top of the Blue limestone horizon. In the Niles & Augusta ground, immediately adjoining the Evening Star on the west, there is evidence of a westerly dip in the forma- tion, so that between the two would be the crest of the anticlinal fold into which the Pendery fault is supposed to merge. Morning Star group. — The continuation of the Evening Star bonanza has been traced in a northeasterly direction through the upper workings of the Morning Star mine, but too little systematic exploration has been done to give a satisfactory idea of its outlines or limits. It apparently decreases in thickness, and the acid character of its gangue, which is a porous granular quartz containing very little or no iron, is very noticeable. Ore has been found on the same line in the workings of the upper Henriette claim, but the adjoining portions of the Waterloo and Henriette be- tween this and the fault, in which ^re bodies may be reasonably looked for, are as yet practically untouched. Ore has also been found on the dip in the Big Chief, indica- ting a possible widening out of the ore body in that direction. In the Lower Morning Star, but still above the line of the fault, is a singular combination of fault and fold, by which the ground opened by the lower shaft has been lifted up, relatively to that nearer the main shaft. There is here also a body of Gray porphyry, which is probably an offshoot from the lower main sheet of Gray porphyry cutting up across the strata. The descent of the strata to the east of ■ this fault is evidently comparable to that in the sharp folds noticed in the Carbonate and Crescent inclines, and the actual faulting movement, so far as could be observed, was very slight. As in these, also, the ground for a certain dis- tance beyond is comparatively barren. Below the line of the main fault, whose existence here, as already stated, is only proved inferentially, important ore bodies have been developed, and the probable structure as revealed by their exploration is so complicated that its explanation is difficult. The Carbonate feult is supposed to pass between the Lower Morning Star and Waterloo shafts, and extend northeasterly across Stray Horse Gulch (there being evidence of a slight displacement in the ridge beyond) in . the direction of Upper Frver Hill, where, in the Dunkin ground, it has passed into a flat anticlinal fold. To the northwest of this line is a flat synclinal fold, which would be a continuation of the syncli- nn,l of Fryer Hill. In the ground of the Foraaken, Half- way House, and Lower Henriette, where are at present the principal ore developments, a body of Gray porphvry has cut up across the Blue limestone into the overlying White norphyry, and on cither side of this body the dolomite has been replaced by vein material rich in iron, and often carry- ing pay ore. , The edges of the strata, which rise from the bottom of the synclinal toward the fault line, have been planed off" by erosion, the overlying White porphyry being left only in the trough of the synclinal. The Lower Henri- ette and Half-way House shafts, then, have been sunk through a. portion of this remaining White porphyry to THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 175 contact, and their workings have followed an ore body on an eastern dip, over which lies, not the White porphyry, but the cross-cutting Gray porphyry. The new shafts sunk to the eastward, to meet these workings in depth, have passed first through an iron body, the replacement of the dolomite adjoining the Gray porphyry on the east, and through this Gray porphyry to the productive contact, now below, formerly on the west side of this sheet. This explanation is founded mainly on analog drawn from observations in other parts of the district, since, at the time of visit, no body of unreplaced dolomite had yet been penetrated, from which the dip of the bedding planes could be actually determined. The Jolly shaft, below the Half-way House, finds ore at a lower horizon, and passes through a much greater depth of Wash. This greater depth of Wash denotes the edge of a former shore-line, which may be traced southward along the western flank of the hill, through the Forsaken, Niles & Augusta, Lower Crescent, Pendery, and Glass shafts. Above this line there is no accumulation of Wash, the rock surface being only covered by angular debris resulting from the disintegration of the rocks forming the actual surface above, and locally known as " slide." Wash, on the other hand, as already stated, consists of rounded fragments of rocks, a large proportion of which must have come from considerably greater elevations on the range, and have been brought down by glaciers. Fryer Hill Mines. — Thegeological structure of Fryer Hill has always seemed a puzzle to Leadville miners, and with good reason, since the Blue limestone has here been almost entirely replaced by vein material, the only relics remain- ing, besides two considerable masses of unreplaced do- loinite, being occasional blocks or boulders, and small ir- regular bodies of dolomitic sand scattered through the ore bodies. Moreover, the White porphyry, instead of confining itself to the horizon above the Blue limestone, as on Iron and Carbonate hills, has formed a second distinct body be- tween this and the underlying White Ihnestone, and forced itself into the mass of the Blue limestone, splitting it into two and sometimes three sheeis, which, being replaced, form as many different bodies of iron or vein material. In ad- dition to these are irregular bodies of Gray porphyry, evi- dently of later eruption, which have been intruded in different places, and an interrupted dike which traverses the whole hill in a direction East 18° South. Nevertheless, _ the structure and manner of ore deposition are here strictly analogous to those already described for Iron and Car- bonate Hills, with the difference that the folding of the beds has been more complicated, the intrusion of porphyry bodies more extensive, and the replacement of limestone by vein material and ore more complete. The simplest ex- pression of the structure is tha,t of two parallel folds, the one a synclinal, the other an anticlinal, whose axes have a north- east and southwest direction. All the beds which are in- cluded in this folding partake also of the prevailing north- east dip of the region. When, therefore, the upper portion of the beds thus folded was planed off, as it was in Glacial times by the great glacier which flowed down Big Evans Gulch, the resulting outcrops have an S-curve, if one looks in a southeast direction, or at right angles to the direction of the axes of the folds. ' The apex of the upper re-entering curve of the S indicates the axis of the anticlinal fold, which, as has been already stated, is a continuation of the line of the main Carbonate fault, now become a fold, while the convex lower curve is the outcrop of the flat synclinal. In actual fact this simple structure is complicated by minor irregularities within the folds, so that the dip at any par- ticular point may not always be found to have its normal direction. • • i Mine workings. — The general disposition of the principal mines, or rectangular blocks of ground which represent their claims, which is familiar to many from maps already pub- lished, is, proceeding eastward or up the ridge from its western edge, first, the various claims of the Chrysolite Company, and the New Discovery, then the Little Chief, Little Pittsburg, Amie, Climax, Duukin, Matchless, Big Pittsburg, Hibernia, and E. E. Lee. The claims of the four first mentioned cover the outcrops of the lower portion of the S or synclinal fold, their side lines running nearly North and South, or North 10° West, while the triangular wedge of the Dives claim, belonging to the little Pittsburg, gives to the eastern side line of the latter a northeast direction parallel to the anticlinal axis. The Amie claim covers the intermediate arm of the S, the Dunkin and Climax the re- entering curve or apex of the anticlinal, and the Matchless, Dee, and Hibernia its rather irregular top. White porphyry bodies. — Throughout all this area the exis- tence of an overlying and underlying body of White por- phyry, enclosing the main ore horizon, is well proved, the former having been, however, in great measure removed by erosion, and when found above the ore bodies, being very much decomposed. Intermediate bodiesof White porphyrj', splitting up the ore-bearing bed into several sheets, are also found. The most important of these are : 1st. In the west- ern Crysolite working ; here a second or horizon has been proved in the west drift from Roberts shaft second level, immediately under the Wash at Vulture No. 2 shaft, and in a winze sunk a short distance south of Vulture No. 1 shaft. In the two latter points it was further separated from the main ore body by a sheet of Gray porphyry within the White porphyry. The value and extent of this lower ore-body still remain to be proved ; it may cover a considerable area, but it probably does not extend as far east as the Roberts chaft. 2nd. In the Amie, and extending somewhat irregu- larly into the Climax and Dunkin ground, are found two lower sheets of vein material in the Lower porphyry. The dividing porphyry in all these cases belongs probably to the Lower porphyry body rather than the upper. White limestone. — The outcrops of the underlying White limescone have been proved on the west by Crysolite No. 6 shaft, and various outlying shafts of the Fairview, Kit Carson, and All Right claims; in Little Stray Horse Gulch on the south, by New Discovery No. 6 shaft,' and those of the Gambetta, Big Pittsburg, Eudora, Little Daisy, and others ; while the shafts Amie No. 2, Climax No. 5, and Dunkin No. 1, have sunk down to it through the overlying beds ; likewise New Discovery No. 6, on Stray Horse ridge, which has passed through Gray porphyry. Lower Blue lime- stone, and Parting qnartzite into the White limestone. The coming to the surface of these lower beds proves that the overlying ore-horizon has been eroded off, and cannot be looked for to the west and south, unless a distinct southwest dip is developed, which would bring down the Blue lime- stone on the other side of a fold under the Wash and Lake beds which form the present site of Leadville. The probabi- lities in favor of this supposition will be discussed else- where. Ore in lower horizons. — The question, whether the White limestone and lower quartzite contain ore deposits of com- mercial value, is one of special moment to owners of claims in this region, since its affirmative answer would greatly enlarge the horizontal as well as vertical extent of possibly productive ground. W^hile a priori there seems to be at present no valid reason why ore should not have been secreted in the White limestone, especially when, as here, it is directly overlain by a body of porphyry, the fact that the many points where it has been explored, have,with few unimportant exceptions, disclosed no ore deposits of value, renders it safer policy to assume a negative answer and confine explorations to the horizon of the Blue lime- stone, which is proved to have been more or less replaced by ore over its entire extent, until the labors of those who are leading the forlorn hope of exploring for unknown ore bodies in a vertical direction shall have met with some prac- tical return. Blue limestone horizon. — The valuable ore deposits of Fryer Hill, thus far developed, have been found either at the out- crops or comparatively near the surface ; that is, with but little or no covering of rock-in-place, the maximum thick- ness of overljdng White porphyry remaining being but 80 feet. The existing surface is formed of Wash which has an average depth of 75 to 100 feet, and at no point on the hill is there an actual outcrop of rock-in-place. It is a rather singular fact that the first discovery of ore by A. Rische, and his partner was made, by pure chance, at the point where the rock-surface and the surface of the "Wash most nearly approach each other. This was at the No. 1 shaft of the little Pittsburg claim, where a boss of iron, a portion of an immense iron body very rich in silver, projected to within 30 feet of the actual surface of the ground. The outcrop of the ore-bearing stratum has an average width on 176 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. the surface (meaning always the rock-surface under the Wash, not that of the hill) of from 100 to 150 feet. From the point of discovery in the Little Pittsburg it extends nearly due west through the Little Chief and New Discovery claims, bending to the Northward in the latter ; through the Vulture claim at Silver No. 2 and Vulture No. 1, and then again to the northeast through Carboniferous No. 5, the cropping of the lower iron sheet, which is here split off from the main ore body, being found still further west in Vulture No. 2. Eastward from the same point it extends through the Amie ground a little south of Amie No 4, where it has not been much explored, to Climax No. 4, and then bends to the northeast through the Climax claim into the Dunkin. The outcrops thus outlined form a semi-circle, convex to the southwest, and a cord drawn through Carboniferous No. 5 and Amie No. 3 shafts in a southeast direction, would prac- tically define the northern limit of present exploration. Within this area the oil-bearing material has a maximum thickness of about 90 feet, becoming in places extremely thin. Its definite limits, however, cannot always be de- termined ; these are defined above by a thin bed of quartzite, the base of the Weber shales, and below by the Parting quartzite, which is here generally about 10 feet thick. These siliceous beds which would be less changed by the action of mineralizing solutions than the included limestone, afibrd when found a definite horizon, but are often not seen, being separated from the ore body by intervening masses of por- phyry through which developments are not pushed; fre- quently they are merely loose quartz sand, only distinguish- able from decomposed porphyry by a more gritty feel. Vein Material. — The vein material of this ore body con- sists mainly of a hydrated oxide of iron, in which the iron is frequently replaced by its interchangeable base, manga- nese ; with silica, either combined with the iron, or as chert ; small irregular masses of sulphate of baryta, or heavy spar; and a mechanical admixture of clay, resulting from the in- filtration of decomposed porphyry ; with this are unreplaced dolomite masses, either in the form of fine blue sand, Or as solid blocks of varying dimensions. The extreme form of the iron is a hard, compact, though generally somewhat cavernous hematite, or, when manganese prevails, a soft, black, clayey material, known as " black iron, " often form- ing large masses, and generally barren of pay ore. Ore. — Within this mass, which may be considered as a gangue, the pay ore occurs in its original state as argenti- ferous galena, the secondary products of which are carbonate of lead and chloride of silver, with a varying amount of bromide and iodide ; as accessory minerals are anglesite, pyromorphite, and wulfenite. " Hard carbonates " are masses of more or less siliceous iron oxide, in which crystals of carbonate of lead fill cavities in the mass, and the chloride of silver occurs generally in leaflets of such minute size as not to be visible to the naked eye; under this head are also included the masses of unaltered galena, which are more likely to have escaped oxidation in a hard, comparatively impermeable mass. " Sand carbonates " are portions of the ore mass in which silica and iron are not present under con- ditions favorable to consolidating it into a compact form,and which consequently crumble into sand on removal. As ex- ceptional occurrences are masses of pure, transparent horn silver, one of which in the Vulture claim weighed several hundred pounds. Distribution of bonanzas. — ^The distribution of the bodies of pay ore, or bonanzas, is extremely irregular, as is their shape and size. Their vertical dimensions are often 30 or 40 feet, and have in one instance reached 80 feet, but this great thickness seldom extends over any large horizontal area, the lower limits of the pay ore streak generally rising and falling with great rapidity. In general the form of in- dividual bodies is not unlike that of those found within the mass of the limestone in other parts of the region. The rich ore masses are more common in the upper portion of the ore- bearing stratum. In horizontal distribution the larger bonanzas form two longitudinal bodies, rudely parallel with a dike-like mass of Gray porphyry, which has evidently in- fluenced their deposition. The northern of these is practi- cally continuous from the Climax south-workings to the Crysolite west-workings ; the southern extends from Little Pittsburg through New Discovery and Vulture, being con- nected with the former in the Little Chief ground, and again around the west end of the dike, near the outcrop in Vul- ture and Crysolite. Gray porphyi-y dike. — The Gray porphyry dike is a some- what irregular body about 30 feet in thickness, standing at an average inclination of 50° to the north. Its mass is so thoroughly decomposed that it is with difficulty distinguished from the White porphyry except where the large feldspar crystals still remain. Nevertheless, it has been traced con- tinuously through the Crysolite, Little Chief, Little Pitts- burg, and Amie workings, and found again on the same line in the Big Pittsburg, Hibernia, and Lee mines. As shown by the outcrops, it is what we call an interrupted dike. It is supposed to have acted as a dam, causing an interrup- tion of the ore-currents ; these currents having flowed from the northeast toward the southwest, the stagnation thus produced has influenced a first deposition on its northeast flank, leaving a barren portion immediately under its south- west side ; but through the gaps above mentioned the cur- rents passed slowly depositing as they went, and in the eddy beyond was formed a second accumulation of ore. DunJcin mine. — In the Dunkin mine, and the adjoining workings of the Climax and Matchless, the richest ore mas- ses have been found near the outcrops, and in these are the principal developments. In the north end of the lower level of the Dunkin, a considerable body of unreplaced Blue limestone has been cut, showing the characteristic markings of this formation. The southern lower workings in both Climax and Dunkin are below the ore-horizon. A slight fold at the south end of the Dunkin claim brings the iron body down again for a short distance in the Little Dia- mond. Matchless mine. — The rich ore body developed in this ground adjoining the Dunkin has not yet been thoroughly explored, but probably connects with the upper part of the Lee body. In the southeast corner of the claim, as in the northern edge of the Big Pittsburg and Hibernia claims, work is being done Upon a western continuation of the re- markable ore body of the Lee mine. This is the very lowest portion of the ore horizon, the Parting quartzite being found in considerable thickness immediately under the ore. As the formation dips a little north of east the full thickness of the body is found in the Lee ground ; whereas on the bound- ing line of the Matchless and Big Pittsburg claims, there remains only a wedge-shaped remnant of the ore body, in- cluded between the actual rock surface and the lower bound- ing plane of the ore horizon, which is cut oflf on the south by the dike. B. E. Lee mine. — The Lee ore body is on a direct lirie with the northern body in the mines first described, and like that bounded on the south by the Gray porphyry dike ; it may therefore be considered an eastern continuation of that body, the intermediate portion on the crest of the fold having been planed ofi" by erosion. It still remains to be proved by future exploration whether or not the ore sweeps around the eastern end of the dike, and another large body exists to the south, as in the western group. The existence of such body is rendered probable by the dis- covery in the Surprise and other claims on the south side of Little Stray Horse Gulch, of pay ore near the out- crop, which is, like that in the Big Pittsburg, near the base of the ore-bearing stratum. Mineralogically, the Lee body differs very essentially from those thus far described ; its gangue_ is principally silica and clay, containing only suf- ficient iron to color the mass in places a bright red, and little or no manganese. The ore is in the form of chloride of silver and contains practically no lead, either in the form of galena or carbonate ; it is also exceptionally rich. It is, therefore, a secondary product, being the redeposition and probable concentration of material resulting from the decomposition of another ore body, now removed by erosion. As it is fol- lowed in depth to the east and north, it will probably con- tain more lead and proportionately less silver. Denver City fcorfi/.— South of the above claims, the con- tinuation of the ore stratum is next proved in Denver City, under a great depth of Wash and porphyry, and about 6ti0 feet east of its probable outcrop. In this region the lower body of White porphyry is cutting diagonally across the ore- bearing stratum, which is now largely unreplaced dolomite, and gplits it into two wedge-shaped masses, the upper one tapering off to- the south, the lower one thinning to • nothing THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 177 on the north. The northern extremity of the latter is proved in the Stonewall Jackson, Pearson, Joe Bates, and other shafts , southward it stretches across the Stray Horse claim, on to Carbonate Hill, soon embracing the fiill thickness of the body. The upper body is proved southward in the Robert Emmett, Agassiz, Gone-abroad, Cyclops, Mahala, and Greenback shafts, in the latter of which it has thinned out to seven feet of dolomite, and is separated from the rest of the Blue limestone body, which crops on the west face of Carbonate Hill, by a probable thickness of over 600 feet of White porphyry. Future explorations and ore prospects. — Within the actu- ally developed area yet unopened ore bodies may still be looked for. Practical experience has already taught miners that no part of the ore-bearing stratum can be considered barren until it is proved so by systematic exploration. Systematic exploration means a definite system of drifts, cross-cuts, and winzes, controlled by accurate surveys in such a manner that the mine superintendent may know that no considerable block of ground has been left untouched, either by himself or his predecessors. The system of bur- rowing, so much in vogue in the early days of mining in this region, is especially reprehensible in such rich ore deposits. Future explorations in as yet untouched ground must be carried on in the direction of the dip, not of individual ore bodies, but of the ore-bearing stratum as a whole ; that is to the north and east of present developments. The whole northern and eastern portions of the hills are as yet practi- cally untouched ground, the Virginius and Little Sliver being the only important shafts which have penetrated the ore-horizon, besides the Buckeye, which is on its western outcrop. The reason for the non-exploratidn of this ground lies mainly in the fact that whenever the ore-bearing stratum has been reached, the volume of water pouring in was so great that it could not be controlled by the pumps used. The laws of hydrostatic pressure, and the fact that we are here on the lower rim of a synclinal basin or trough, across whose edges the drainage of both Big and Little Evans runs, amply account for the great volume of water found. It can- not be assumed that the ore bodies, as at present developed, will necessarily be found to extend continuously, or in equal richness to the north and east ; indeed, the few develop- ments as yet made have been in comparatively low-grade ore. Still the promise of ore is amply sufficient to justify the expenditure of a large amount of money in exploration. Under the present conditions of ownership of the ground, however, whoever puts in pumping machinery of power sufficient to lower the water-level in his own ground, will probably do the same thing for his neighbors. The ex- ploration must, therefore, be accomplished by a combination of property owners, and the putting down of one or more large union shafts, provided with powerful machinery, such as are in use on the Comstock lode, from which explorations may be carried out into the grounds of all belonging to the combination. These shafts should be located so as to reach the ore-bearing stratum as nearly as possible at the lowest point at which it is expected to be worked. For definitely determining such point, it would be wise to obtain more ac- curate data than have been available in this work, by sinking additional exploring shafts. Judging from what is now known, a union shaft for the claims on the western half of Fryer Hill should be sunk along Big Evans Gulch, at the southern extremity of the dividing line between the Little Pittsburg and Amie claims ; say at the Little Amie shaft. For the eastern portion of Fryer Hill and the claims in Little Stray Horse Park, the union shaft should be placed near the gulch about midway between the Tip-Top shaft and Lickscumdidrix bore-hole. There will always be the element of uncertainty in regard to the complete efficiency of this system of drainage that as yet unknown bodies of porphyry may cross the beds in such a way as to interfere with the regular circulation of water in the basin ; but in spite of this uncertainty the experiment should be tried, since portions which were thus cut oflF from the benefits of the common pump might easily be connected with it by a drainage level. Conclusions. — The most important facts of general bearing are ; I. Sedimentary formations. — That the Paleozoic and Mesozoic beds are a littoral deposit around the Sawatch Arch- 12 £ean island, and were consequently formed in comparatively shallow water. II. Intrusive bodies. — The occurrence, on an enormous scale, of intrusive bodies of eruptive rock of Secondary or Mesozoic age, and of exceptionally crystalline structure, which are so regularly interstratified as to form an integral part of the sedimentary series, and yet which never reached the surface, but were spread out and consolidated before the great dynamic movement or mountain-building period at the close of the Cretaceous. III. Ore deposits. — That the original ore depositions took place after the intrusion of the eruptive rocks and be- fore the folding and faulting occasioned by the great dynamic movement. IV. Plication and faulting. — ^That the plication and faulting which resulted from this dynamic movement were intimately connected with each other, the latter being, in most cases, a direct sequence of the former, when the limit of flexibility of the plicated masses had been reached. V. Duration of dynamic movement. — That while the close of the Cretaceous is properly considered the mountain-build- ing period of this region, being that in which the greater dynamic movements were initiated and their major effects produced, these movements have continued, though on a probably much smaller scale, to recent times, as evinced by the movement proved to have taken place in the Lake beds since the Glacial period. Evidence, though of less definite character, has also been obtained of movements since the opening of the Leadville mines. Facts which bear directly upon the ore deposits have a more practical application, and will therefore interest a larger class of readers. The main conclusions may be briefly summarized as follows : Formation of ore deposits. — The minerals contained in the principal ore deposits of the region were derived from cir- culating waters, which in their passage through the various bodies of eruptive rocks took up certain metals in solution, and, concentrating along bedding planes, by a metamorphic or pseudomorphic action of replacement, deposited these metals as sulphides along the contact or upper surface, and to greater or less depth below that surface, of beds generally of limestone or dolomite, but sometimes also of siliceous rooks. VII. Distribution of ore deposits. — That in the region immediately about Leadville the principal deposition of silver-bearing minerals took place at the horizon of the low- est member of the Carboniferous group, the Blue limestone formation, commencing at its contact with the overlying White porphyry. But that, while this particular formation has been peculiarly susceptible to the action of ore currents in this region, it is not admissible to assume, as some have done, that in general the beds of any one geological epoch are more favorable than those of any other to the formation of this important type of silver-bearing deposits ; since, al- though they are generally found in greatest abundance in calcareous beds of Paleozoic age, the horizon of such beds is by no means identical in the various mining districts in which they have been thus far developed. VIII. Dikes. — That in this, as in many other mining dis- tricts, dikes of eruptive rock, cutting the ore-bearing forma- tion transversely, seem to favor the concentration of rich ore bodies or bonanzas in their vicinity. IX. Faults. — ^That on fault planes, on the other hand, no considerable ore bodies have been deposited, as might have been assumed a priori from the fact that their origin is later than that of the original ore deposits. X. Value of these deposits as compared with fissure veins. — The superior estimation in which true fissure veins aie held, as compared with this class of deposits, is, as far as valid scientific reasons go, largely a popular preju- dice. While fissure-vein deposits may be more regular and continuous, the bonanzas in this class are genertdly larger and more easily worked ; morever, I consider that additional and more definite evidence is required before it can be as- sumed as proven that fissure veins extend indefinitely in depth and are filled directly from below, and consequently see no reason why the area of ore deposition, other things being equal, should be greater in that class than in this. A rough comparison of the relative areas of ore deposition in the famous Comstock lode and in the Blue limestone of Leadville, which was once as continuous as the former, will 178 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. illustrate my idea. The Comstock has been worked on a length of 20,000 feet and to a maximum depth of 3,000 feet or over an area of 60,000,000 square feet. In Leadville, if we take, as the limits within which the Blue limestone has been found productive, a square of which Fryer Hill, Little Ellen Hill, and Long & Derry Hill should be three of the corners, we have an area of over 225,000,000 square feet, or about four times as great as that of Comstock. Too small a portion of the latter area has yet been explored to attempt any comparison between the relative proportions of produc- tive and unproductive ground in the two cases. XL Legal aspect. — From the point of view of legal owner- ship, however, there is an undoubted advantage in favor of the fissure vein, since the owner of a certain number of feet on the outcrop can, under the United States mining law, establish his title to that width as far as the vein extends. In the case of the Leadville deposits, on the other hand, late legal decisions made under the system of trial by jury have practically reversed the law, and given effect to the system of square locations, which, however much may be said in its favor, was certainly never intended by the legis- lators who made it. XII. Practical suggestions to prospectors. — In general, deposits of this type are to be looked for in regions where sedimentary beds are found associated with numerous dikes and intrusive masses of Mesozoic or Secondary age. In such regions valuable deposits would be first sought in limestone beds, and in preference on their upper surface, or at the contact with overlying eruptive rocks or sedimentary beds of essentially different composition. It should also be borne in mind that limestone deposits are generally irregular in their distribution, and often found within the mass of the rock with relatively few surface indications to guide the explorer. In the region here treated of the Blue limestone is essentially the ore-bearing bed, and while, owing to the favoring condition of the presence of large masses of in- trusive rock impregnated with precious metals, ore has locally been concentrated at other horizons, this particular bed offers the best promise to the prospector. Experience has shown, moreover, that ore deposition has been most active where the Blue limestone is overlain by White porphyry. In the area covered by this intrusive mass, ex- ploration has not yet thoroughly tested the horizon ; but within these limits it seems to be well proved that no con- siderable portion of it is altogether barren of useful metals. On the -Other hand it must be remembered that it is only bonanzas or exceptionally large concentrations of ore which yield a great reinuneration to miners, and these are, in the nature of things, limited to comparatively small areas where conditions have been favorable to their concentration. Such portions can here be readily recognized by the presence of large amounts of vein material, either ferruginous or silice- ous, replacing the dolomite. By the aid of the U. S. geolog- ical survey maps the prospector can therefore determine with approximate accuracy where the Blue limestone horizon has been removed by erosion and where it still exists, and in the latter portions, by the further aid of sections and descriptions herein, where it may be looked for under the surface, and at what probable depth it may be found. He should bear in mind that, it is sometimes bleached so as even to be confounded with porphyry, from which its effervescence with acids is then the only safe dis- tinction, and that even the porphyry is sometimes so impregnated with carbonate of lime as to effervesce slightly. Also that the Parting quartzite is the formation which marks its base, but that in the decomposed state prevalent in the mines it is often to be distinguished from porphyry only by its gritty feel; that, if for any reason the Parting quartzite is not definitely distinguishable, the finding of White lime- stone beneath, with its characteristic secretions of white hornstone or chert, is an unmistakable evidence that he is below the horizon of the Blue limestone. Area under Leadville. — The determination of the existence or non-existence of the Blue limestone beneath the city of Leadville, or the area immediately west of Carbonate and Fryer Hills, is of prime importance, for the reason that so many rich bonanzas have already been developed at that horizon on its eastern borders, which it is reasonable to sup- pose once extended farther west, and that thus far the rich- ness of the horizon seems to increase with its distance from the crest of the range. The evidence gathered upon this: point will therefore be given in considerable detail. It is sufficiently well proved by the general geological structure of the region that the Blue limestone originally extended to the west of Leadville, its probable limits being a line drawn from the mouth of the East Fork of the Arkansas in a south- east direction to a point just west of Weston's Pass. If, then, it has not been removed by erosion, it should still be found there, and the question resolves itself into the deter- mination of the amount of erosiou over the triangular area included between that line and the known outcrops, and the probable elevation or depth below the present surface at which the Blue limestone was left by the folding action and faulting of the Paleozic series. Of the amount of erosion, or its practical exponent, the depth of surface accumula- tions of Wash and Lake beds over the actual rock surface, no data are attainable, except along the eastern shore-line of the ancient lake, or the western edges of the present hills, where rock in place has been actually reached in a few shafts. As it may be reasonably assumed that this was a shelving shore, the only deduction to be drawn from the data thus afforded is that farther west the thickness of Wash and Lake beds is probably greater. With regard to the depth below the present surface at which the Blue limestone was left by folding and faulting, it may be assumed from analogy with the structure of other similar areas in the region, which the few available facts confirm, that this area is occupied by a shallow synclinal fold, cut off in part on its eastern edge by a fault. If, then, the shore of the Glacial lake was not very much steeper than has been assumed in the sections, and there exists no anticlinal ridge within the basin, it is probable that a con- tinuous sheet of Blue limestone still exists west of the pre- sent known outcrops, and probably at no point over a thou- sand feet below the present surface. The evidence obtained with regard to its form may be very briefly stated. On the North. — The existence of the Cambrian quartzite dipping southeast at the mouth of the East Fork of the Arkansas, and of Blue limestone on the ridge north of this stream, proves a basining-up in that direction, and that out- crop of the Blue limestone on that side of the basin runs nearly parallel to the river, and one or two thousand feet south of it, with a shallow dip southeast. East Side. — On the west slope of Prospect Mountain it comes to the surface, as already shown, in the Little Evans anticlinal. South of this the Oolite shaft cut the overlying Gray and White porphyries, and found Blue limestone dip- ping steeply west at about 165 feet. About 1,100 feet west of this the Sequa shaft and bore-hole was sunk 280 feet through porphyry without reaching the contact, proving the western dip to be continuous so far. Still further south, at the foot of Fairview Hill, a number of now abandoned shafts have struck the White limestone under only sixty to ninety feet of Wash, in one of which, the American Eagle, it is said that the beds dipped both east and west. This would be the axis of the Big Evans anticlinal fold. About 600 feet west of this shaft the Bob IngereoU drill, after passing through 360 feet of Wash and lake beds, has been driven from 100 to 150 feet in White porphyry. This proves definitely a western dip here, since no considerable sheet of White porphyry is known to exist below the White lime- stone. Whether this is the one which occurs above or below the Blue limestone will be determined only when the under- lying bed is reached. On Carbonate Hill, as stated in Chapter VIII, the downward movement was distributed be- tween two faults, the amount of that in the westernmost, the Pendery fault not having been proved. The fact that the shafts which have been sunk through' the Wash along the lower slopes of the hill have invariably struck White porphyry, is satisfactory evidence that the ore horizon is still below them, since in this region the only known sheet of White porphyry is that which overlies the Blue limestone. There is some evidence of a western dip, as there shown, but whether the formation descends to the westward in a regular slope or in a series of short folds or faults is yet to be proved. The former would be more favorable to fiiture developments. The facts that the displacement of the Car- bonate fault is so small and that the Pendery fault probably passes into a fold are presumptive evidence that immedi- ately west of the latter line the depth of the Blue limestone THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 179 below the present surface is not great, and that it probably increases toward California Gulch and decreases toward Stray Horse Gulch. On the south slope of Carbonate Hill the California Tunnel passes through White porphyry west of the fault, which here had an inclination of only 30° to the west, and a shaft and bore-hole near the bed of the gulch, opposite the Harrison smelter, has been sunk 200 feet also in White porphyry. South side. — ^The main fault crosses California Gulch in a southwest direction, about 500 feet above the Gillespie & Ballou sampling works, and west of it the Blue limestone may probably exist for some distance further south. Theo- retically, it should extend, if not eroded, as far as the con- vergence of the fault line with the western rim of the basin. Practically, as the Lake beds probably deepen rapidly in this direction, its actual extent is likely to remain a matter of pure speculation for some time to come. West side. — The western limits of the basin are equally a matter of speculation. The outcrops of the Blue lime- stone, run just west of the city limits. Within the limits thus rudely outlined the probabilities of the existence of the ore horizon below the Wash and Lake beds seem sufficient to justify the expense of an experimental shaft. This expense must necessarily be great, from the thick- ness of loosely agglomerated material to be passed through, which will almost certainly admit an enormous amount of water, the drainage of the surrounding hill surface. It must therefore be undertaken with the intention of risking a large sum of money, and as its result, if favorable, will increase the value of property in the whole area, the risk should be shared proportionately among them, as far as possible. From a purely geological standpoint, the most conservative method of exploration would be to reach the Blue limestone horizon somewhere near the eastern rim of the basin, say on the lower slopes of Carbonate Hill, and follow it westward. Other influencing motives may proba- bly make it advisable to sink the experimental shaft further out on the fiat, and in this case some position on a north and south line through Capitol Hill, would be a safe loca- tion to choose. While there might be advantage in going still farther west, inasmuch as the nearer one approaches the actual outcrop the less will be the overlying porphyry that will have to be passed through, on the other hand, once that outcrop is passed, the shaft would reach only the compara- tively barren Silurian, Cambrian, or Archaean ; it is there- fore advisable to keep within safe limits until more definite data as to the probable breadth of the basin can be obtained. ALhough the Blue limestone may extend half way to Malta, in a region so complicated by unexpected folds and faults the regular slope of the basin, which would give it that width, cannot safely be counted on. Other unexplored areas. — Present developments show that on a line running eastward from Fryer Hill replacement action has been exceptionally active. The Blue limestone horizon along this line is therefore worthy of thorough ex- ploration, first in the synclinal basin of Little Stray Horse Park, and again in the area between the Yankee Hill anti- clinal and the Weston fault. In either portion, as it is covered by thick porphyry masses, it would be more eco- nomical to conduct the exploration, from some common . shaft, and only sink actual working shafts after the exist- ence of valuable ore bodies had been definitely determined. In either of these basins the ore horizon extends northward beyond Big Evans Gulch and under Prospect Mountain, and may prove productive there, but it is relatively more difficult of access, and the few points at which it has been reached give less promise of widespread ore deposition than in other regions. Southeastward from the crest of Yankee Hill the Blue limestone horizon might be expected to be productive from the presence of the cross-cutting body of Gray porphyry; on the other hand it may be more difficult to trace, on account of the probably complicated geological structure. Under the Pyritiferous porphyry of Breece Hill it must exist, but at an as yet unknown depth. On the north slope of this hill the contact eastward from the High- land Chief mine has not yet been thoroughly explored, as prospectors in this region have been hopelessly confused by the complicated structure, and have sunk_ their shafts indis- criminately above and below it. On Little Ellen Hill it has been found productive, as already mentioned, but not explored in the valleys to the north and south. East of the BallMountain fault, again, the contact crosses South Evans Gulch, but has been opened at comparatively few points. The prospects of as yet undeveloped ore bodies under Fryer, Carbonate, and Iron Hills have already been dis- cussed. South of California Gulch the extension of the line of the Iron fault probably coincides nearly with the axis of a synclinal basin, east and west of which the formations should rise. The generally shallow depth at which the Gray porphyry sheet between the White por- phyry and Blue limestone was found, just west of the Dome fault, affiDrded an indication that the latter would be found here comparatively near the surface, and this indication has been confirmed by explorations since the completion of field work. East of the Dome fault the out- crop of the Blue limestone is found in the Nisi Prius and adjoining shafts in Iowa Gulch, and its southern continua- tion has thus far only been struck by the Hoodoo and Echo shafts at the head of Thompson Gulch, leaving a consider- able extent entirely unprospected. Under Printer Boy Hill, east of the Pilot fault, the geological indications are favor- able to the existence of ore bodies in the Blue limestone. Its outcrop on the Iowa Gulch side is clearly marked, but on the northern slope toward California Gulch it is obscured by surface debris, or slide, and when last visited was un- prospected between the Lovejoy shaft and the Eclipse tun- nel. East of this it extends at a depth as yet unprofitable for exploration, until cut ofi' by the Ball Mountain fault; while on Long & Derry Hill it is cut off earlier by the Weston fault, and is wanting in the areas further east. The outcrop of Blue limestone can be traced from the western shoulder of Mount Zion northward, gradually descending the hill slope, crossing the mouth of No Name Gulch and Piny Creek to Taylor Hill, at which point the El Capitan mine has developed a valuable body of gold ore. Through- out this extent it is as yet but little prospected. Metallurgical Notes. — The smelting of lead in Lead- ville, upon a careful and prolonged investigation, prompted Mr. A. Guyard, who had undertaken the subject for the Government, to the following conclusions : 1. That smelting in Leadville is a profitable operation, but that the aggregate smelting capacity of the working smelters is about equal to the present mining product of the camp. 2. That lead smelting, in Leadville, has, on the whole, been brought to a state of great perfection, with regard both to the plant adopted, which is constructed on the most approved principles, and to the manner in which fuel, fluxes, and ores are mixed for smelting, giving slags which are remarkable for their fluidity, not too highly charged with either silver or lead (especially when it is remarked that the bullion produced is very rich) ; and from which bye-products, such as speises and mattes, are easily de- tached. 3. That the quantity of bye-products, other than lead fumes, resulting from smelting in Leadville, amounts to but little. ■ 4. That the camp is provided with the necessary plant to work profitably such bye-products, which are generally rich in silver, and either completely neglected, or treated imper- fectly and with a considerable loss of silver. 5. That the mode adopted at a great many smelters, of mixing and re-smelting with caustic lime the flue dust form- ed in considerable quantity, is the best that could have Tjeen devised, and that it would be advisable to substitute pure lime for the dolomitic lime used in Leadville for this opera- tion. 6 That the numerous imperfections noticeable at various smelters are mostly intentional and based on economical grounds, and are not on ignorance, for smelting is conducted in Leadville by very clever superintendents and smelters. 7. That the smelting of lead ores, in presence of iron- stone, has here been brought to a state of great practical perfection, and is carried on most successfally, from one year's end to the other, with the greatest regularity at a dozen smelters, and that superintendents of smelters do not hesitate to introduce in the charges sometimes very large quantities of galena, which are reduced with the greatest facility. 8. That owing to the peculiar nature of the Leadyille 180 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. ores, and to the great altitude at which smelting is perform- ed, which increase the volatility of lead compounds, at- tempts ought to be made to substitute caustic lime, free from magnesia, for the raw dolomite universally used in Leadville, in order to avoid as much as possible the forma- tion of volatile lead compounds. 9. That coeteris paribus, dolomite forms as good a flux as calcitic limestone, so far as the actual working of the blast furnace is concerned, and that the fluidity of the slags thus formed is not only irreproachable but quite remarkable. 10. That besides the substances existing in large quanti- ties in the camp, such a.i silica, sulphur, carbonic acid, lime, magnesia, alumina, oxides of iron and manganese, lead, sil- ver, chlorine, and phosphoric acid, the following substances exist in small quantities : sulphuric acid, titanic acid, bro- mine, iodine, zinc, baryta, gold, nickel, molybdenum, arsenic, antimony, and copper ; and that traces of the fol- lowing substances may be detected : tin, bismuth, cobalt, iridium, selenium, tellurium, cadmium, and a new metal which has been imperfectly studied .is yet, and which ap- pears to be intermediate between the metals of the iron group and those of the lead group. 11. That ores of Leadville are either rich in lead and poor in silver, rich in silver and poor in lead, or equally rich in both silver and lead, and very variable in composi- tion ; but that by judicious admixtures of various ores, ore beds of sensibly the same composition are made at the smelters, which are needed to insure regularity in the smelting operations. 12. That the quantity of lead completely lost in the at- mosphere is sensibly twice as large as the quantity of lead caught in the dust chambers generally used. 13. That the crude bullion extracted in the blast furnaces of Leadville by the process referred to in ? 7, is of very fair quality, and that a little of its silver and some of its lead exist there in the state of sulphurots. 14. That matte9-(both-iron and lead mattes) which had hitherto been considered as entirely formed of sulphurets are crystallographic compounds of sulphurets of iron and lead, and crystallized magnetic oxide of iron. (This last observation, however, interferes in no way with the fact that in various smelting operations mattes entirely formed of sulphurets are produced.) 15. That slags cannot very well be compared with min- erals, from which they differ essentially; that they contain minute quantities of carbonates which have escaped destruc- tion, and small quantities of carbon or carburets, two prod- ucts which hitherto had not been generally known to exist. That slags are formed of crystallographic compounds of sili- cates of iron, manganese, zinc, lead, lime, and magnesia, on the one hand, and on the other of a peculiar matte which is designated by the name of calcium matte, and which like its congeners is formed of a sulphuret (sulphuret of calcium) and magnetic oxide of iron, which can be isolated in the pure crystalline state. 16. That at least three distinct metallurgical kinds of speises, containing two distinct chemical arsenio-sulphurets of iron, are formed in lead smelting, and that they always contain small quantities of nickel and molybdenum entirely concentrated in them, showing that the metallurgy of molyb- denum could be conducted jointly with that .of lead, with ores containing only traces of molybdenum. 17. That a very curious and a hitherto unsuspected reac- tion takes place in the blast furnaces of Leadville, by means of which cobalt is completely separated from nickel (nickel being concentrated in speises and cobalt in the skimmings of the lead pots of blast furnaces), and showing that the metallurgy of both metals and their separation could be effected in lead furnaces by operating under conditions sim- ilar to those observed in Leadville. 18. That iron sows are a variety of speise and present a great analogy with the latter products. 19. That lead fumes are very complicated products, char- acterized in Leadville by the presence of no inconsiderable amount of chloro-bromoiodide of lead and phosphate of lead, and that they contain, contrary to the opinion formed in Leadville, but small quantities of arsenic and antimony. 20. That owing to that erroneous notion, the practice of roasting the dust in order to free it from arsenic and anti- mony, as adopted at one smelter, is a useless and costly one. which is unnecessary and ought not to be generalized in Leadville. 21. That accretions are products of sublimation, and that these products, which line the shaft of the furnaces and interfere seriously with a regular run, might be, to some extent, avoided, or made less troublesome, by a slight mod- ification of the manner of charging the furnaces, and by the adoption of caustic lime, instead of raw limestone, in smelting. 22. That some accretions are characterized by the concen- tration, in sometimes large quantities, of metals such as tin, arsenic, antimony, and zinc, which exist but in small quan- tities in the ores. 23. That the charcoal used in smelting is of very good, and the coke of bad quality; but that the fuel obtained by mixing them contains 20 per cent, of ash, and that it re- quires a maximum amount of 32 to 33 parts of this fuel for 100 parts of ore, and 24 parts for IOC parts of charges to ef- fect smelting ; but that at several smelters these percentages are considerably lowered. 24. That for every 100 parts of carbon thrown in the fur- naces with the smelting charges, only 52.25 parts reach the zone of combustion at the tuyeres, the balance being con- sumed chiefly by carbonic acid formed in the zone of com- bustion, involving, as is well known, an absorption of heat. Compiled from an article by S. F. Emmons, C. E., Beport of U.S. Geological Survey, 1881. THE COMSTOCK MINES. THE known limits of the lode cover a space of 22,546 feet, in a nearly due north and south direction (magnetic). At the time the existing mine maps were laid out, the variation of the needle in that locality was 16^ degrees east. The northern half of the lode has a direction a little more to the east than the magnetic meridian, and the southern half a strike which again is slightly more to the east than its neighbor. Great irregu- larities in the course occur locally, the strike varying in fact from north-east to north-west within short distances. Still the mean direction of the lode is almost coincident with the line of magnetic north. Upon this extensive seat of metal- liferous deposition, the following mines have been opened, the list beginning at thje northern end, and being divided into the Virginia, Gold Hill, and American Flat groups in accordance with the geological separation of the ore bodies. The names given these divisions are those of the towns which have been built upon them, and which rank in popu- lation in the order here given : Virginia Gronp. Length of Claim. Utah 1,000 feet. Sierra Nevada 3,650 " *Union Consolidated . . 675 " *Mexican . 600 " Ophir 675 " California , . 600 " Consolidated Virginia ... , . , . . 710 " *Best Sc BelohPr 640 " Gould & Curry ... 612^ " Savage . 771% " Hale & Roroross .... . . . 400 " Chollar 700 " Potosi . . . 700 " Bullion . ... 9435- " ♦Exchequer . . 400 " *Alpha . . .... 306 " Imperial Consolidated . . ... 406 " 13,649^6 feet. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 181 Gold HUl Group. Length of Claim. •Challenge 90 feet. •Confidence • 130 " Yellow Jacket 953^^ " •Kentuok 93}^ " CrownPoint .... Mlfj " Belcher 1,040 " •Segregated Belcher 160 " Overman 1,200 " Caledonia 2,188 " 6,3971^ feet. American Flat Group. Length of Claim. Maryland 900 feet. Baltimore Consolidated 1,200 " American Flat SOO " 2,600 feet. ' The mines above mentioned are followed by a number of others which from their position may have good reason to place themselves among the acknowledged mines of the Comstock Lode. The three series of mines occupy a total length on the lode of 22,546 feet, as follows : la the Virginia Group . . 17 mines. In the Gold Hill Group ... " In the American Flat Group . . 3 " 13,549 feet. 6,397 '• 2,000 " 22,646 feet. the Comstock has become the greatest gold and silver mine in active operation in the world. It is extremely difficult to ascertain its true yield in the nineteen years of its history, and estimates vary from $300,000,000 to $350,000,000. During the earlier years very little effort was made to give accuracy to the statistics, and even the fuller data now obtainable must be regarded as a minimum, because they represent only that portion of the product which is extrac- ted in the interest of the mine owners. In addition to this there are the battery slimes and the tailings, which are the property of the mills, and from which a large amount of bullion has been obtained. In the following table the annual product is given from the best sources at command. For the most part it covers only that portion of the product which is accounted for to the mine stockholders; but it includes also about $6,500,000 obtained from tailings and from mines that are not on the Comstock, though in its immediate neighborhood. This addition probably com- pensates nearly for the omissions due to imperfect records, and the benefit to stockholders from the Comstock lode has probably been not far from $290,000,000. The length of the claims now (1877) included in the lode is more than one thousand feet greater than it was in 1866, the additions having been made on the extreme southern end in the American Flat district. The division of the lode among the mining companies also is not now what it was when the table quoted by Mr. Hague (" Survey of the For- tieth Parallel," Vol. III., p. 99) was compiled by Mr. K. H. Stretch, State Mineralogist of Nevada. That contained the names of forty-six claims, many of which were less than a hundred feet long. Several of these have been consolidated within late years, and one company, the Chollar-Potosi, has divided its ground between two companies, the Chollar and the Potosi. A practical consolidation has been accomplished by working two or more mines through one shaft. Thus the Union, Mexican, and Ophir are all worked through the Ophir shaft ; the Best and Belcher is managed by the Gould and Curry officers, and the Imperial and Empire shaft is a point from which the Exchequer, Alpha, Impmal, Chal- lenge Consolidated, and Confidence claims, covering 1392 feet of ground, are all explored. The Kentuck is worked through the Crown Point shaft, and the Segregated Belcher through the Belcher. The number of working shafts distri- buted along the length of the lode in 1877 was twenty ; to which must be added the air-shaft of the Belcher. Nine mines had no shaft, and some of them were among those of the first importance. This consolidation of interests is a favorite method of reducing the cost of exploration while the mine is in barren ground, and it can be and frequently is abandoned as soon as ore is reached. The great and in- creasing depth of the mines is no bar to this method of con- ducting the search for ore, because the energetic methods of mining practised on the Comstock allow the sinking of a deep shaft with extraordinary rapidity if the discovery of ore makes it advisable. Mining began in the Comstock region in 1850, when gold was found by some Mormon emigrants in Gold Cafion, which leads from the immediate locality of the lode to the Carson River. The discovery was made near the Carson, and the work was confined to surface diggings. As these were pursued from one point to another, the Cafion was ascended until, in 1859, Gold Hill at the head of the Canon was reached, and the surface claims were staked out close to and probably including, the croppings of the great ledge. During the same period Six-Mile Canon, which runs from the northern part of the Comstock to the Carson, as Gold Canon runs from the central part, was worked, and in the same vear, 1859, the Comstock Lode was discovered by a pit sunk "for a water-hole. This was on the ground of the Ophir mine. Milling the ore began in October of the same year ; but progress was slow, and the amount of bullion taken out in 1860 is estimated at only $100,000. Since then • Worked through the shaft of a neighboring mine. jold and Silver. 1860* . . $100,000 1861* . . 2,000,000 1862*. . 6,000,000 1863* . 12,400,000 1864*. . . . 16,000,000 1865*. . . 16,000,000 1866* . . 11,739,100 1867* . 13,738,618 1868* ... . . 8,479,769 1869*. . . . . 7,405,578 1870t. . . . . 8,603,175 Unclassified $102,466,240 Gold. Silver. 18711 $4,077,027 }8,230,587 lS7i! 6,310,035 6,611,943 1873 10,493,796 11,037,023 1R74 12,579,825 11,881,000 1R75 11,739,873 14,492,360 1876 18,002,906 20,570,078 1877? . . 16,130,996 17,760,702 1878J. . . 9,357,040 9,694,940 $88,691,498 $98,278,623 Total .... . . . 186,970,121 18771 Unclassified . . *901,790 187811 " . . 826,064 1,725,844 $291,162,205 From the mines in the Comstock region but not on the Comstock Lode, 1877 and 18781 . $2,635,042 How much these figures should be increased to account for the bullion extracted from the battery slimes and tailings, is impossible to estimate with accuracy ; but if an allowance of $5 per ton of ore is made on these two items, the above sum total would be increased by $32,500,000 and the entire product of the lode would be placed above $320,000,000. The quantity of ore extracted is even more doubtful than its value, for no record of it has been kept in earlier years. It consists of two general classes, the rich ore, obtained when the mines are in bonanza, and the low-grade ore, which is worked during the intermediate periods of comparative barrenness. The former ranges usually between $40 and $108 returned to the stockholders, and the latter between $20 and $35. A good authority on this subject estimates the average value of the Comstock ore in the past at $45 per ton of 2000 pounds, and this includes only the return to the companies. At this rate the above total of $201,161,205 represents about 6,500,000 tons of ore. To this must be added from two to ten per cent, for slimes, which vary quite as much in value. In the earlier years of this region, the slimes and tailings were not always worked over, and that was also for some of the mines the period of richest yield. Taking all these circumstances together, it is probable that the allowance above made of $5 per ton of ore mined would cover the amount actually extracted from the slimes and tailings. It is very much in excess of the quantities re- ported to the Controller of Nevada for taxation. * From J. D. Hague's Report on Mining Industry of the Fortieth Parallel, 1870. f From the Report of the U. S. Commissioner of Mining Statistics, 1871, corrected by data received from some mines. t From Report of the U. S. Monetary Commission, 1877. I Reported by the mining companies with minor amounts taken from the Tax List. 1 Prom State Tax List of Nevada. 182 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. The quantity of precious metals which has been allowed to run off with the exhausted tailings is unknown ; but $40,- 000,000 is probably a minimum estimate for this item. Estimates of this kind are necessarily inexact. Summing up these estimates, we have for the gross contents of the lode as worked up to the end of 1878 : Ore extracted ' 6,500,000 tons. Per Ton. Total. Bullion from the ore $44.80 1291,161,205 Bullion from tailings and slimea . . . 6.00 32,500,000 Lost in tailings 6.20 40,300,000 Total estimated assay value of ore $363,961,205 If the percentage yield in the mills were accurately known, it would of course be possible to determine the value of the ore from their returns. But this yield has varied constantly, increasing with the improvement in machinery and practice from sixty-five per cent, to seventy-two per cent. Seventy per cent, is probably a somewhat high average, and adding three per cent, for the amount extracted from tailings, which is also slightly in excess of the reported amount, we have a total yield of 73 per cent, from the ore. Therefore the $291,000,000 which has been obtained from the lode re- presents a mass of ore containing a little less than $399,- 000,000 worth of silver and gold. Adding to this sum $9,- 000,000 for the value of the slimes, or a little more than three per cent., we obtain a grand total of $408,000,000 for the original contents of the ore taken from the Comstock mines in twenty years, ending with the year 1878. These two methods of computation therefore give results that differ by no less than forty-five million dollars. Most of the bullion yield of the lode has been obtained from sixteen ore bodies or "bonanzas," and from low-grade ore which most of the mines continue to extract in large quantities after the rich quartz that furnish the rich ore, but is left in the mine until that has been removed. The bonanzas which have been found are as follows, beginning at the north end of the lode : One in Sierra Nevada. Two in Ophir. One in Con- solidated Virginia and California. One in Gould and Curry and Savage. One in Hale and Norcross. Two in Chollar- Potosi. One in the Imperial and adjacent mines. One in Yellow Jacket. One in Yellow Jacket, Kentuck, and Crown Point. One in Crown Point and Belcher. One in Belcher. One in Segregated Belcher. One in Overman. One in Caledonia. The number of these bodies is variously given by autho- ground, has produced no less than thirty-seven per cent, of the whole product of the lode, or $108,861,230. It is now too late to attempt an accurate summary of the in- teresting facts connected with these remarkable collections of ore. The published records have always been of doubt- ful value, and the fire which destroyed so many mine offi- ces in Virginia, in 1875, swept away nearly all the original notes and maps which could supply means for their cor- rection. The following table is therefore given merely as an approximation to the truth. It was compiled by the San Francisco Chronicle in August 1877, and its statistics are brought down to June 30th of that year. In some re- spects it is obviously incorrect. It gives the dimensions of the '' great bonanzas " as 500 feet high, 700 feet long, and 90 feet wide ; and every one of these figures could be suc- cessfully disputed as being too small. But a mass of that size would yield 81,500,000 cubic feet of quartz, which at thirteen cubic feet to the ton would weigh 2,423,000 tons ; a quantity which is nearly twice as much as this ore body has supplied. Doubtless the other dimensions shown are equally inaccurate. Nevertheless the table may give to persons unaccustomed to mining some idea of the scale upon which the metalliferous depositions of the Comstock lode have been made. It is copied with no change except the insertion of the true yield to date from the California and Consolidated Virginia mines. The sum total, it will be ob- served, does not agree with that given above, a fact which illustrates the conflict of authorities on the question of yield ; but is also partly accounted for by the yield from low-grade ore which is not included. The number of bonanzas named in this table is twenty, or four more than I have accounted for. The discrepancy is due to the fact that the Chronicle tabulates the returns from mines rather than from bonanzas, and one of the latter may stretch through two or three of the former. The proportion of silver and gold in the ore, is another point which suffers considerable obscurity from the want of accurate book-keeping, though it has lately been the subject of careful calculation. It varies in different ore bodies and in different parts of the same bonanza. In the Crown Point and Belcher, the Belcher, or southern end, was richer in gold than the other half of the mass. In the Consolidated Virginia & California, the California or northern end had the larger proportion of gold. In the latter case the ore bodies were absolutely distinct and occupied different quartz masses which were nowhere united together, though closely adjoining. The Consolidated Virginia had produced up to Bonanza. Date of Discovery. Position. " Depth Length. Width. Tons. Average Yield. Bullion. Ophir, No. 1 . . . . Gould & Cun-y . . t Savage . . J Gold Hill .... . ... Yellow Jacket . . ) Kentuck. ... . . > Crown Point ) Belcher .... Chollar-Potosi . . Overman Seg. Belcher 1859 1860 1863 1864 1864 1866 1866 1866 1866 1866 1868 1871 1873 1874 1874 Totals. . Surface. Surface. Surface. 100 feet. Surface. Surface. Surface. Surface. Surface. 400 feet. 900 feet. 1100 feet. 1300 feet. 200 feet. 200 400 450 360 160 300 200 80 100 360 200 500 300 300 500 200 900 1000 600 200 500 250 50 100 350 300 600 700 800 400 40 30 30 35 30 60 30 20 26 35 40 60 90 30 10 109,168 777,783 1,037,412 418,051 55,288 653,958 110.669 4,961 16,613 313,270 111.497 1,374,528 1,090,360 264,000 112,964 $48 00 39 70 25 39 32 02 34 39 26 39 14 26 20 49 12 89 24 97 7 89 42 40 93 65 20 70 21 38 $5,210,000 30,881,397 26,340,762 13,389,068 1,901,117 13,985,716 1,578,388 101,453 212,761 Hale & Norcross Sierra Nevada 7.822,233 883,108 Consol Virginia California Ophir, No. 2 Justice 104,007,652 5,548,055 2,395,974 6,360,520 42 89 272,367,624 rities, the doubt not resting upon denial of reported ore dis- coveries, but being caused by the difficulty of distinguishing bonanzas which are enclosed in the same mass of quartz, and only separated by low-grade ore which may be mined out afterward. The subject is not important ; and no pains have been taken to form a decided opinion upon it. The Justice lode, lying near and opposite the southern end of the Comstock, has also produced one large ore body. The freat difference in the importance of the bonanzas is in- icated by the fact that one of them, the last found and lying in Consolidated Virginia, California and Ophir December 31st, 1878, 26,141,851^^ ounces, or 1101 tons, 861 pounds of bullion, and the California 10,000,770^ ounces, or 615 tons, 524 pounds. The California iDullion was worth $2.56 per ounce, and the Consolidated Virginia $2,246. The profit and loss account of the mines is probably quite as difficult to arrive at as the dimensions and yield of the bonanzas. All the facts which have been attainable are shown in the following table which relates to those com- panies that were in existence April 1st, 1879, and gives an account of their capital stock, dividends and assessments, since the date of their incorporation : THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 183 Name of Mine. Length Qaim. Shares of Stock Number. Value per Share. Capital Stock. Total ABBessmcnts. Date of last AseesBment. Total Dividends. Date of last Dividend. Date of Incorporation, Yjeoinia Geocp. 1. Utah 2. Sierra Nevada ... Feet. 1.000 3,650 676 600 675 ■600 710 640 700 700 943M 400 406 408 20,000 100,000 100,000 100,800 100,800 640,000 540,000 100,800 108,000 112,000 112,000 112,000 112,000 100,000 100,000 30.00 600,000 8100 100 100 100 100 100 lOO 100 100 100 100 100 100 100 100 100 100 8 2,000,000 10,000,000 10,000,000 10.080,000 10,080,090 54,000,000 54,000,000 10,080,000 10,080,000 11,200,000 11,200,000 ll,ZuO,009 11.200,000 10,009,000 10,000,000 3 000,000 60,000,000 9 780,000 2,650,000 46(J,000 221,760 2,340,744 None. 474,600 438,692 2,945,600 4,196,000 3,026,000 1,760,000 None. 2,802,000 380,000 240,000 876,000 February, 1879. April, 1879, April, 1879. May 16, 1878. September 10,'78. June, 1873. April 16, 1878. March 1879. February, 1879. March, 1879. September, 1878. January 22, '70. January 17, '78. March 21, 1878. February, 1879. November, 1878. April 10, 1878. January, 1879. August 7, 1878. December, 1878. April 14, 1879. April, 1876. January, 1879. April 11, 1879. None 8102,500 None. None. 1,394 400 30,240,000 41.810,000 None. 3,826,800 4,460,000 1,898,000 3,080,000 None, None. None. None. January 16, 187i. March 7,1864. ' January, 1879. April, 1879. April 9, 1872. 3. Umon Consolidated . . 4. Mexican 6. Ophir ... 6. California 1 7. Consol. Virginia . : . 8. Best & Belcher . . . January 23, 1865. 1874. December 31, "73. June 7 ,1867. 9. Gould & Curry, . . 10. Savage 11. Hale & Noroross . . 12. ChoUar. . 13. PotBsl October, 1870. June, ;1869. April, 1871. February, 1871. June 27, 1860. October 14, 1862. March 19, 1860. April, 1805. 14. Bullion 15. Exchequer . 16. Alpha 17. Imperial Consol. . . April 13, 1876. Total GoLTi Hill Group. 18. Challenge Consol . . . 19. Confidence 20. Yellow Jacket . . 21. Kentuck 22. Crown Point 23. Belcher 24. Segregated Belcher 26. Overman . ... 26. Caledonia . . . . 13,711^ 90 130 i,gS^ 160 1,200 2,188 2,888,400 30,000 24,960 120,000 30,000 100,000 104,0110 6,400 38,400 100,000 673,760 64,000 84,0 JO 30,000 8100 100 100 100 100 100 100 100 100 8288,840,000 8 6,000,000 2,496,000 12,000,000 3,000,000 10,000,000 10,400,000 1,020,000 3,840,000 10,000,003 823,480,296 8 10,000 266 320 3,912.000 300;000 2,053,370 1,692,040 244,800 3,066,800 1,646,000 886,011,700 None. 8 78,000 2,184,000 1,252,000 11,898,000 16,307,200 None. None. None. May', 1865'. August, 1871. March 10. 1870. January, 1875. April 10, 1876. November, 1873. August 11, 1866. February 16, '63. August 22, 1865. February 8, 1861. November 2, '68. July 18, 1866. April, 1866. May 2, 1871. Total ... American Flat Group. 27. Maryland ■ . 28. Baltimore Consol.. . . 29. American Flat .... 6,397}^ 900 1,060 500 $100 100 .100 858,666,000 8 6,400,000 8,400,000 3,000,000 $13,080,600 8 64,000 936,000 172,600 May 9, 1877. April 30, 1878. May 18, 1877. 830,809,200 None. None. None. March, 1875. July 3, 1872. April, 1872. Total 2,450 168,000 816,800,000 81,162,500 Summarized, the account stands as follows : Number of Companies .... Shares of Stock ... Par value Total dividends ... Total Assessments Dividends less Assessments , 29 3,630,160 $.364,296,000 8116,820,900 837,623,886 879,097,014 A large part of this assessment account has accrued during the last four years, which has been a period remarkable for the continuance of barren ground in all but five of the mines. The financial consequences of this misfortune have been increased by the depth of the workiuffs, the flioding of two mines in the most favored part of the lode, the con- struction of new pumps of the heaviest and most expensive pattern, and the sinking of several new shafts designed to strike the lode at still greater depths. From all these causes combined, the assessments in Storey County in 1878 amounted to $8,561,600. This sum includes the levies of a large number of mines not on the Comstock lode, but the amount to be deducted on their account would be only a small portion of the whole. In the third volume of Mr. Clarence King's report on the Fortieth Parallel Survey, Mr. James D. Hague, of San Francisco, has given a very thorough description of the methods of mining and the machines employed on the Com- stock. That admirable treatise is still a trustworthy guide to the main features of the work and also to many details, most of the recent changes consisting in expansions of the former methods. In fact the plan followed, necessitated by the nature of the ground, has been quite uniform since the true eastward inclination of the lode was discovered. Since that time the works have differed more in magnitude than in plan. No attempt will be made here to repeat the infor- mation given by Mr. Hague, which will also be constantly referred to, and only a few of the additions to the mode of work will be described. The Comstock is an example of an inclined deposit which is reached by shafts sunk through the hanging wall. The extreme rapidity with which the ground is worked out necessitates the frequent removal of these shafts in the direction of the inclination, and to avoid the sinking of so many new and expensive openings a system of combined vertical and inclined works has been introduced. On account of the moderate dip (30 to 60 degrees) of the lode it is not practicable to work a large number of levels from a vertical shaft, and no attempt is made to do this. As soon as the vertical or " straight" shaft reaches the lode its further construction is abandoned, and an incline is opened usually on or near the foot wall, but not conforming clofeely to it. The vertical shafts have three or four compartments, disposed in a parallelogram, the only departure from this system being in the deep Forman shaft, which is L shaped. The inclines are mostly built for one track. From the in- cline a main drift is run north and south at those depths where it is desired to establish a level, and which are one hundred feet apart in promising ground, but may be three hundred feet apart in a barren zone. It is quite common now to maintain a practical uniformity in the position of these levels in neighboring mines, so that the main drift is fi-equently part of a gallery that may reach from one end of the actively worked ground to the other. While this is not true for every level, care is taken to make these connections at such distances as will secure good ventilation and the safety of the men in case of accident. The deepening of the mines frequently amounts to 150 feet vertical in a year, and this corresponds to about an equal advance eastward, and about one half more excavation, following the inclina- tion of the lode. For this reason the depth which can be worked from one point is rather rapidly exhausted, and in the nineteen years during which the Comstock has been worked upon there have been three principal bases of ope- ration, as follows: 1. Surface works, consisting of "dig- gings," tuunels, and shallow shafts or inclines. 2. A line of deeper shafts, but not often exceeding 500 or 600 feet in depth. 3. The first line of deep shafts sunk through the hanging wall and reaching the lode at the depth of about one thousand feet or more. The surface works were mostly operated about 1860-62, the line of shallow shafts about 1862-65, and the first line of deep shafts was begun in 1864 by the construction of the Bonner shaft of the Gould & Curry. All the other mines followed this example, and the entire line from the Mexican to the Overman was probably complete by 1869 or 70. The average life of these shafts has Deen somewhat more than ten years, and the mines have deepened in this time from about the 700 to the 2000 level, and in some cases a greater depth. None of these data are exact, but they illustrate fairly the rapidity with which the respurces of the lode are exhausted. Within the past two or three years all the principal mines have attained the 2000-foot level, and many have passed several hundred feet beyond it. The depth named requires a hoisting cable about 2500 feet long, and for every foot further an increased length of cable amounting to a foot and 184 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. a half is necessary. Such extreme lengths require very powerful machinery, and increase the chances of accident. A barren zone in the lode has also been reached where the ore deposits are not numerous enough to require the use of so many shafts, the intervals in the present line being often less than 1000 feet. A new line considerably removed to the east has therefore been occupied, and several shafts are now under construction, most of which are designed to supply the ■wants of two or three mines. The Union Consolidated mine, which has been hitherto worked through the Ophir shaft, now has a new shaft nearly 1500 feet further east. The Gould & Curry mine have a new shaft, about 2300 feet east of the existing point of extraction. It is known as the Osbiston shaft, from the superintendent of the mine. The Savage, Hale & Norcross, and Chollar Potosi mines united in sinking a shaft known as the Requa shaft. It is about 3100 feet east of the lode croppings, and about 1700 feet east of the line occupied by the present shafts of those mines. South of this is the new Jacket or Taylor shaft, 2545 feet east of the -present shaft. Finally, at the extreme southern end of the Gold Hill group of mines is located the important new Forman shaft, named after Mr. Forman, the superintendent, the fourth in the history of that mine, and the deepest mining work which has been projected in America, if not in the world. It is no less than 3100 feet east of the present shaft. At what depth it will strike the lode cannot be positively foretold, but it is expected to be 4500 feet in vertical depth. The Caledonia mine joins with the Forman in this great work. Of these new undertakings, the Requa, Forman and Osbiston shafts have four compart- ments each, and the Taylor has three. The Forman shaft is L-shaped, having three compartments 5 feet wide and 4J feet, 4J feet, and six feet long respectively. The pump shaft on the short arm is 6 by 7 feet. Work upon the Comstock mines is unusually irregu- lar, even for such irregular subjects of industrial opera- tions as mines mostly are. The absence of a vein and the occurrence of large ore masses and perfectly barren ground in a succession that cannot be foretold, gives to mining in this lode the most extreme alternations of good and bad fortune. The ground in which lay the great bonanzas of the California and Consolidated Virginia mines yielded some ore above the 200 foot level, and then was practically barren down to the 1200 level. From the next four hundred feet of depth a million tons of very rich ore has been taken. Such vicissitudes necessarily in- duce irregularity in working, which is further increased by the differences which exist in the length of the various claims. It is matter of course that the progressive increase in depth should be less when a great ore body is removed, than when works of exploitation are carried on in a barren and unpromising part of the lode. But the extraordinary vigor of operations in these mines somewhat counteracts this cause of fluctuations. When ore is at hand in large quantities the extraction is pushed with such speed that a deposit containing $150,000,000 worth of metal may be mostly removed within four years from the time of discov- ery; the whole work of laying out the levels and extracting the ore being done in this time. The Consolidated Virginia mine yielded 144,400 tons of ore in 1877, or 400 tons daily for 362 days ; and the California had probably about the same yield from the neighboring ground. With such energetic management it is not strange to find the mines deepening at the rate of 100 feet a year, even when in bonanza. The New Jacket shaft, begun October 7th, 1876, was car- ried to the depth of 2250 feet in twenty-eight months, an average progress of 81 J feet per month. For some time the work was retarded by swelling ground ; but pumps were not required for the first half or two-thirds of the sinking, the water being bailed out with the ore-skip. The work was not pressed with unusual vigor but carried on as steadiljr as the ground permitted. This rapid work is the result partly of high wages, admirable organization, and the lavish use of machinery. The administrative vigor which characterizes the management of these mines has made the employment of machinery for drilling a success wherever tried. The drifts are pushed forward at the rate of three to eight feet a day, and shafts at three to five feet. The higher rate is usually the result of machine- work ; but hand-work also produces results that would be considered extremely rapid, even for machinery elsewhere. Rapid progress is obtained here, as it is in most mining works, by the use of heavy powder charges and high-grade explosives. Picking and gadding are not much encouraged when the ground will blast well. For softer ground, where these modes of breaking down are advisable, shallow holes, three or four inches in depth, are sometimes made over the face of the header, and cartridges about an inch long, called "gophers," without tamping, are exploded in them. In ground which has been shattered in this way, excellent pro- gress can be made by picking. Black powder is little used; nearly all the work being done with the nitro-glycerine compounds. Electricity is not used for firing, a fuse being inserted into the exploder. At the Sutro Tunnel the elec- trical mode of ignition was in use, and caused some very serious explosions. In spite of all precautions, the use of the electric exploder was found to be dangerous in the dry air of Nevada. The high rate of progress is partly due to favorable ground. All the rocks encountered in the mines blast well, and the details of the work in excavation show that the rapid ad- vance is obtained without resort to those strenuous efforts which are necessary in some other places. Comparing the Comstock drifts with the railroad tunnels, which seem to be the only rivals to them in swiftness of execution, it is im- mediately evident that decided differences exist in the details of work. In the tunnels, drill-holes of eight to eleven feet deep are common ; but on the Comstock five feet is usually the maximum depth, even of machine-drill holes ; and more frequently they are thirty to forty inches deep. Hand-worked holes vary from ten to thirty inches. This comparative shal- lowness is an inevitable consequence of the narrow quarters in which the machines work. All these details have come gradually into use, and though the mines have never enjoyed a common direction, the practice is essentially uniform throughout the district. While it is never safe to say that efficiency can go no further, it is probable that drilling and blasting are near their maximum of excellence in Comstock mining. These parts of the task involved in the extraction of subterranean rock have in fact reached a state of excel- lence that is much in advance of some other divisions of the labor. The removal of freshly blasted material is as slow here as it is in all single-track drifts, and greatly retards the progress. Probably one-half the time required for breaking down is spent in filling the rock into cars and running these to the shaft ; and any means for hastening this work would be a valuable addition to the mining methods of the Com- stock. The cars used are now always made of iron ; but the con- struction otherwise has not been changed from that which Mr. Hague described and illustrated. The load carried is still somewhat less than one ton, the large cars taking not more than 18(10 or 1900 pounds. The disposition made of the car-load varies with the position of the level. When this runs out from a vertical shaft, the car is pushed upon a cage and hoisted ; but when the level connects with the in- cline, the load is tipped into a shoot excavated over the incline. From this shoot the ore is loaded into the " giraffe," while the car returns for a new load, not leaving the leve'l. This mode of extraction was barely introduced in Mr. Hague's day, but is now the prevalent one in the deep shafts. The name giraffe is given to the large car, holding twelve or fourteen tons, which runs in the incline. The principal in- novations which have been made in the machinery of the mines since Mr. Hague's description was published in 1871 are: 1. Introduction of compound pumping-engines, with the Davey differential valve gear, modified by Mr. W. H. Patton. 2. Introduction of a direct-acting hoisting-engine, and in- crease of hoisting-speed to 1100 feet per minute. 3. Inven- tion of the " skeet " by Mr. I. L. Requa, Superintendent of the Chollar-Potosi mine. This name is given to a large skip or ore-bucket, the use of which replaces the cage and avoids the necessity of hoisting the cars. Holding 4J tons, it will raise more than a cage with four decks, and very much diminishes the dead weight to be lifted. It is self-dumping. This apparatus has been placed in the Requa, Taylor and other shafts, and if it approves itself upon extended trial, it may have an important effect upop Comstock mining aind COMSTO CK DISTRICT N EVADA Xo.l. -Drawn and Engraved /or the Mines', Miners and Mining Interests of the United States. ^«E^^Mt. Davidson ''"'lioi'JSa? above S :: OMSTOCKBISTRICT N EVADA. TSro.2 Drawn and Engraved for the Mines, Miners and Mining Interests of the United States. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 185 play an excellent part in removing some of the difficulties of deep mining. 4. Tlie use of galvanized iron air-pipes instead of the old red-wood boxes. Small as this detail is, no step can be taken in the management of ventilation in these mines without producing important results ; and this has no doubt greatly improved the efficiency of the air sup- ply. These points of distinctively engineering features will not be ftirther touched upon ; but there are others which concern the physics of the lode that will be described. They relate to ventilation and water supply. Ventilation is secured by a combination of natural and artificial means ; but underground the latter is mostly em- ployed. Some also employ forced air-currents from the sur- face ; but the apparatus is entirely inadequate to the supply of the large quantities of air required in these hot mines. Brattices are sometimes found in main air-ways, and es- pecially in the inclines ; but the conditions of the ground are such that this mode of guiding air-currents is trouble- some and costly in the vertical shafts. All the shafts on the lode lie in a hanging wall that has been undermined by extensive excavations, and even when this ground has set- tled to a firm condition, there is always local movement in the country rocks. The stratified condition and varied character of the material, the vast masses of soft clay or rock that decompose, swell, and flake away under the action of the atmosphere, with which this ground is filled, makes every opening insecure. Pressure and crushing are simply questions of time in every shaft, and the mode of tim- bering which has come into use, is designed to meet these pe- culiar exigencies. It consists of heavy timber frame work, Unfastened and held together entirely by the pressure it sus- tains. This timbering is the invention of Mr. Phillip Deide- sheimer. It allows considerable movement in the rock with- out losing its value as a safeguard, and this quality is so im- portant that there is strong objection to placing stiff brattices, sscurely fastened, in the works. Air-currents from the sur- face, when forced, are therefore always sent down by pipes of galvanized sheet-iron eleven to twenty inches in diameter ; and it is probably owing to these difficulties that the artifi- cial ventilation of these mines is so unimportant. This re- mark does not apply to the local movement of air from one part of a mine to another. That is in use everywhere, and is accomplished by small engines which will be spoken of hereafter. Even tlie natural ventilation of these mines is remarkably small considering the vast heating powers of the hot rock, and the fact that evgn in summer an addition of from twenty to thirty degrees is made to the temperature of the air passing through the mines, while in winter the difference is greatly increased. In nearly all cases a shaft is exclusively down-cast, or up-cast, and the mines are di- vided into six down-cast and ten up-cast. In addition, the Gould & Curry had air-currents both ways in its shaft, and the Belcher has a special air-shaft for down-cast. On the 2d of July, 1877, the amount of air rising from eleven up- cast shafts (including the Gould & Curry), with its tempera- ture, was as follows : Cubic Feet Temperature of Upcast per Minute. ■ Top of Shaft. Utah 4,000 ... degrees Fahr. Sierra Nevada 7,700 76 " " C. &C 21,600 84 " " Consolidated Virginia . 48,750 89 " " Gould & Curry 12,000 ... " " Savage . . ." 68,500 100 " " Choirai>Potosi . . . 18,000 77 " Bullion 10,080 89i " " Imperial Consolidated 28,80D 9.5 " " Belcher . . . 52,0ii0 89 " " Overman . . . . 27,000 63 " " Total cubic feet per minute 288,630 This is probably to be considered as near a minimum quantity. A great difference is discernible in the ventila- tion of the mines on different days, due perhaps to the di- rection of the wind. This day (July 2d, 1877) was not a bad one, and the outside temperature, taken in the shaft-houses (and therefore in the shade) of those mines which were down-cast, averaged about 73 degrees F. from 10 a. m. to 4 p. M. The supply of air may be taken at eleven and a quarter tons or 300,000 cubic feet per minute, as the old Chollar and Kentuck shafts, both up-cast, were inaccessible. Probably 10,000 feet of this quantity is supplied by the numerous air compressing machines in use, and 30,000 feet by the blowers. The up-cast shafts had an aggregate suction of about 750 square feet, the area of which was diminished by an unknown quantity due to the presence-of the cages, at various stages of their paths. The minimum average velo- city was therefore 400 feet per minute. Considering the straight course and excellent condition of the air-passages, and the short paths of most of the currents, this result can- not be regarded a very successful utilization of the great working powers of this extremely hot lode ; but the causes of the deficiency, aside from the small section of the drifts as compared with those of coal mines, are not understood. The velocities actually observed (with a Byram anemome- ter) varied from 200 to 900 feet per minute, the lower rate being obtained in those mines which have unusually long air-ways. The Savage, Bullion, Imperial, and Overman gave a velocity of 550 feet to 590 feet ; the O. & C. 400 ; Consolidated Virginia, 620 ; and Belcher 900 feet per min- ute. Though ventilation is the life of all mines, the air- current is an especially beneficent visitor in the Comstock works. Nevada has a dry climate, and its atmosphere must have very high powers of hygroscopic absorption, which are further increased by the elevation of temperature which the air experiences in the mines. All of this is utilized, and the up-cast is so loaded with steam that it rises in a solid body of vapor thirty or forty feet above the shafts. The vaporiza- tion of this great amount of water must have a very marked effect in cooling down the drifts, aided as it is by the expan- sion of about 10,000 cubic feet per minute of air which has been compressed to one-fourth its usual volume, and the absorption of the heat which raises the whole current to a temperature of more than 90° F. The unusual importance of the air-current in these mines is illustrated by the history of the 1850 level of the Bullion mine. This level was first opened from the Imperial shaft and attained a length of 1700 feet before any attempt to es- tablish an air connection in the Bullion mine was made. The thermometer is reported to have ranged between 130° and 140° F., and work in the drift was extremely difficult and costly; but the State Mineralogist says that when a through current of air was established, the thermometer fell from 138° to 100° F. Here was an increase of thirty-eight de- grees merely from the mode of working. At the time the ob- servations given here were made, there were about 2700 men working underground in the mines in Virginia & Gold Hill. They worked in three " shifts " of eight hours each, and the allowance was therefore 300,000 cubic feet per minute to 900 men, or 330 cubic feet per man. This is very much in excess of the theoretical requirement, the amount required by law in the coal mines, where vast quantities of gas are discharged, not being above 100 cubic feet per man per minute. This quantity is itself a maximum designed to cover all possible contingencies, including the effective dilu- tion of the coal gases. But the three times greater quan- tity which the Comstock mines receive is not sufficient to keep them cool nor to secure really comfortable conditions for them. In another place it is shown that the heat of these rocks is probably due to the condensation of atmospheric water in the process of kaolinization, or transformation of the felds- pathic rock to clay. By this action currents of gas, of which carbonic anhydride probably forms a principal part, are dis- charged, and take their way through the dry portions of the rock, conveying the heat produced to any opening by which they escape. It is probably to this agent in part that the nauseating effects which are sometimes felt even in the pre- sence of a fair amount of ventilation are due. When the Sutro Tunnel reached the Savage works, in July, 1878, and a current of air was established through the tunnel into the mine, and thence 1600 feet upward to the surface, the air from the tunnel was said to be " sickening," though men had been working in it, with fair ventilation, and without unusual inconvenience for years. In this case the more vigorous movement of the air seems to have swept out the gas accumulated in the irregularities of the tunnel walls, and several days passed before the purity of the current was restored. The steaming atmosphere of the mines may con- tribute to the exhaustion which work in them induces; but whatever the causes, it is certain that the work is trying, and its severity is less dependent upon the temperature than upon deficient quantity of the air-current. This was cout 186 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES." stantly proved by leaving thermometers with the men who would not, without experimental proof, believe that the places which they sought for cooling off were sometimes hotter than those where they worked, and frequently had precisely the same temperature. It is true that an increase of a few degrees in the temperature of a drift will sometimes bring with it an exhaustion which is out of proportion to the heat change alone. This is explainable on the supposi- tion that the increased heat is due to an unusual access of gas, and such places frequently become more comfortable after a few days. For this reason they are sometimes abandoned for a short time, "to cool off." It was invariably observed that while the men wanted constant change of air, they did not enjoy too strong a draft. They would complain if the fan engine was run too fast. On one occasion this fact was proved to me by the foreman of a mine, who quietly opened the throttle of the fan engine enough to speed it a little above its usual rate, though not to an ex- cessive degree. My impression was that the change would be an improvement, for the drift to which the pipe led was probably 500 feet long, and quite hot. But in a few minutes one of the men came to the station and turned the valve back, saying it was " cold ! " In this case the air at the fan had a temperature of 88° F., at the end of the air pipe 108° F., and in the drift about midway of its length 112° F. The latter was probably about the temperature of the at- mosphere in which the men worked. These conditions which are due to the character of the ground in which the mines are excavated, are supplemented by the requirements of vein mining. Labor is performed in narrow quarters, only a small portion of the lode material being moved in the work of exploration. Long stretches have to be excavated before a connection with a distant air- shaft can be established and a special mode of ventilation must be employed to supply the men working in these culs de sac, which are particularly subject to the peculiar condi- tions of the locality, for the reason that they are continually advancing into fresh ground. In these points which are re- moved from the line of the natural air-currents, ventilation is obtained by forced blast, and the machines which supply it are mostly placed below ground. They are ordinary upright engines of two to five horse power worked by compressed air at 60 pounds' pressure, supplied from the surface. Connected with each engine is a four- vane fan of simple construction, made in the shops of each company ; and the air which these machines supply is taken to the end of the drift, or " header," by galvanized iron pipes eight or eleven inches in diameter. The engines are placed at some point in the main air-way, and take air of 75° to 95° F. temperature, the quantity being usually from 700 to 1000 cubic feet per minute to each fan. This may furnish three to seven men with air. Contrary to the usual practice in mining, the air is supplied by pressure instead of exhaus- tion ; and this feature of Comstock engineering, which seems to be a matter of criticism to those who are not initiated in the peculiar requirements of work in these mines, is really one of the points most essential to the comfort of the men. The air-pipe terminates within twenty feet of them, and the current of fresh air is directed immediately upon their half- naked bodies, assisting in the rapid removal of the streams of perspiration which pour from them in quantities sufficient to soak their garments, fill their shoes, and even moisten the rock under their feet. The men drink copiously of ice- water, which is supplied without stint, and an allowance of three fallons per man is probably a minimum estimate for eight ours' work. All this is removed through the vigorous ac- tion of the skin, and the main condition for comfort to the men seems to be the quick removal of that part of the per- spiration which is vaporized. If this hangs about the per- son, or if the vaporization is insufficient, there is a sense of suffocation ; and this may take place either with deficient ventilation or even in a fair current of air if it is humid. Heat which increases the capacity of air for absorbing aqueous vapor may be in this way favorable to comfortable working, a fact which explains the relief so constantly ob- tained in a current of warm air. Throughout the mines it was observed that the men did not seek coolness, but quan- tity of air, and probably quality also, that is, capacity for absorbing moisture. For tne latter reason, the air which is taken from a current having a temperature of 85° F., and is sent through a long pipe where it is heated to 100°, has its capacity for aqueous absorption increased so as to act with the highest eflSciency when thrown upon the men. If the contrary method were used, and the air were drawn from the end of the drift through the pipe, as the managers are sometimes advised t> do, the men would inevitably be put to great discomfort. Instead of a velocity of 100 feet per minute, the air would not have a greater movement than 40 feet per minute, and in passing through the drift it would pick up all the deleterious gases and all the moisture in its path. It would have no force of projection upon the men, and the constant exchange of atmosphere which is now ob- tained in the header would be lost. Without making radical and probably impracticable changes in the quan- tity of air supplied, there can be little doubt that the method of ventilation by exhaust fans would almost cause the closing of the mines. Still, the day is approaching when the present means of ventilation may be found insufficient, and a change of plan be necessary. It is probable that an intelligent study of the conditions under which personal comfort is secured will establish methods of ventilation that will allow the triumphant accomplishment of mining at depths of four and five thousand feet, even in these extraor- dinaiy natural furnaces. In another chapter it is shown that the most active centres of the heat are small and often can be avoided in planning the drifts, or confined by tight lagging, devices which may permit mining in much hotter ground than that of the existing levels. As the heat of the rock increases, the temperature and capacity for aqueous absorption of the air-current also increases, and the latter advantage can perhaps be heightened by drawing the air-cur- rents direct from the surface. Thus in addition to improve- ment from increased care in management, the evil of in- creasing rock temperatures tends to correct itself by making the cooling and sustaining effects of the forced ventilation more vigorous. Of course there may be a point where the air will be too hot for the lungs to receive without injury ; but the existing experience shows that a temperature of 123° and above this can be borne successfully, provided the action of the skin is properly maintained. Pumping. — The country rock which encloses the Com- stock is divided into distinctively wet and dry portions, arranged in a series of alternations parallel with the lode. The dry ground is in large excess over the wet, and it is so dry that the usual seepage, which takes place in all rocks, is quite insignificant. It is most often solid, but fissured portions are met with. Fissuring and decomposition are, however, the distinctive characteristics of the wet ground which occupies comparatively narrow bands, two or three hundred feet being probably a maximum thickness. Their vertical extent and their length are probably very great, for they pour out immense volumes of water, and for several years it was supposed that there must be large chambers in the rocks holding water, so great was the quantity yielded by some of the "water bonanzas." No such chambers have ever been encountered in the exten- sive explorations in the country rock, and there is no doubt that the seat of the aqueous stores is the soft and fissured seams which are constantly met with. The quan- tity of fluid which these shattered bands will hold is im- mense. Three years ago the Savage & Hale and JS'or- cross mines were flooded by water, which entered on the 2200 foot level, and rose to about the 1750 level, flooding also the 2400 level which had been partly opened. The water therefore had a head of 450 feet, which must have been due entirely to hydrostatic pressure, and the freedom of movement within the seamy magazine is shown by the fact that here, as well as on other similar occasions, the miners had to fly for their lives, so rapid was the influx. New pumps, capable of throwing about 10,000,000 gallons per month to the surface, were immediately built for both mines, and have been working with great vigor ever since, but had not been able by the middle of December 1878 to reduce the water to a greater depth than 50 feet below the 2000 foot level, where it remained for several months longer. Great difficulties were experienced in the Savage by the breaking of the pump rod, and it is not probable that the pumps of the two mines have averaged more than three quarters of their full working capacity. Still that ratio would give for thirty months 450,000,000 gallons, or THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 187 1,800,000 tons, estimating the gallon at 8 pounds. This represents the quantity of water supplied by about three hundred feet of head. Two hundred feet remain to be overcome, and what amount of the fluid this represents cannot be foretold. The reduction of the water level is by no means very rapid nor uniformly continuous, and it is not possible to say how much the fissured water-bearing seam extends below the 2200 level. The Sutro Tunnel, which has been carried through to the 1640 foot level of the Savage mine, offers an opportunity for reducing the lift of the pumps, and increasing their size. The third anniversary of its appearance (March, 1879) found this flood in full possession of the two mines, and the height was near still the 2000 foot level. Considering the depth at which it lies, and the character of the mines it has overcome, this " water bonanza" may fairly take po- sition among the historic floods, which have defied the intelligence and determination of man. The Sutro Tunnel offers another example of the immense quantities of water which the rocks of this region locally contain. The quan- tity flowing from it has of course increased steadily with its progress, and now appears to be about 1,250,000 gallons a day, the tunnel being 20,489 feet long. Whenever wet f round was encountered the flow increased, reaching its ighest point in October, 1876, when it was 24 miner's inches, or more than 4,000,000 gallons daily. This great work of engineering offers the best evidence of the banded nature of the water reservoirs. They have been repeatedly cut and passed in the tunnel, and always found to be soft and shattered seams of rock, and never vacant spaces. The next two or three years of experience in the tunnel will have great interest from its bearing upon the important question of what amount of atmospheric water reaches the tunnel level yearly. At present it is impossible to say how much of the floods which enter the mines is due to constant sup- ply, and how much to the exhaustion of stores accumulated in the rocks. Upon the Comstock the impression is com- mon that the current supplies from the atmosphere are very small, and it is in fact an ordinary occurrence for almost overwhelming floods to dwindle away to insignificant streams ; but it is also true that some supplies are quite constant, as in the Ophir mine, which has pumped from its upper levels for years since they were worked out and abandoned, the lower levels meanwhile remaining remarkably dry. It is noteworthy that while the country rocks contain these immense accumulations of water, the lode itself is tolerably free from them. Often it is quite dry, but some- times contains a considerable amount of water, lying in the loose " sugar quartz " as in a sandstone bed. As a rule, these accumulations drain away rather rapidly, and are never so persistent as the great bodies from outside the lode. It is the country rock and not the lode that is distinctively the water- carrier, a fact which is probably due to the entrance of siliceous waters on the line of the lode, and the deposition of quartz in the crevices which elsewhere are free to store up water. It should be mentioned however, that a flow of water is looked upon as a favorable sign and promise of ore by the miners. Such indications of course depend upon position for their value, since floods of water have frequently been struck away from the lode, in points where there could be no sound expectation of ore. It is also possible that the value of water as a sign of ore, even within the just limits of the lode, has passed away as the mines have gained depth. In the upper portions the barren quartz was distinguished for its hardness and close structure, while the ore quartz was porous and loosely coherent. There was a well marked dif- ference in the storing capacity of the two kinds of material, and water was no doubt often a true sign of the quartz that usually carried ore. But in the lower levels the strength ot these distinctions is much diminished. Hard quartz is met with, but in proportion it is much diminished, and a now ot water in the lode is no longer a sign that a neighboring body of quartz is an ore carrier. The liability to overwhelming floods of water compels the mines to maintain pumps ot the largest size, even though m extraordinary amount ot water is encountered for years. They are all Cornish pumps, and the underground arrangements are still in the mam what they were when Mr. Hague figured them in 1870, with ex ception of the size, which has been increased; * ^""'' "••"""- great chattgeS have tateh pkce. '^^'^ "''^ ' Above ground The old cog geaiiog has given way to direct action in all the new pumps except that of the Jacket. Compounding, and the Davey differential cut-off", with a modification by a Mr. W. H. Patton, have been applied to all new constructions, and the Comstock now pre- sents a line of powerflil pumps constructed after the latest models. Beginning at the south end of the lode, we find the following new machines. The table also gives the number of strokes at which they were running in the autumn of 1877 ; but the maximum speed possible is about the same in all of them. This is lower on the Comstock than in cooler and drier mines. The difficulty of maintaining long pump-rods in a steaming atmosphere and over shifting rock surfaces, does not permit a higher speed than eight and a half strokes per minute. Overmau Belcher ... Yellow Jacket . . Requa Shaft . . . Hale and Norcross G-ould & Curry . 0. & 0. Shaft . . Pump. Stroke. feet. 8 8 10 8 Diameter. inches 14 14 14 Two barrels, each 15 in, 13 14 in. vertical shaft. 13 in. inclined " 14 & 13 12 ^Strokes per minute. IK (registered), 3j|(regi9tered;. 6J4 to VA 6J4 to ^i4 4 to 414 7 to8 Hours of Daily run. .* 24 24 24 •24 24 24 Six of these pumps, together with the old ones, were in the summer and fall of 1877 raising 350,000 to 400,000 tons, of water monthly. The efficiency of the new form of pump- ing-engine is shown by the record of the Hale & Norcross pump for eight months, from October 1st, 1876. This mine being flooded, the pump was worked continuously. Total Strokoa 2,040.938 Strokes per Minute, including stops 6,85 Stoppages 9 days, 16 hours, 48 minutes. Strokes per Minutes, excluding stops 6.119 Water pumped 84,436,192^ gallons. Wood consumed . 3,027 oorda. Cost ««,T-21 Stroke of Pump (actual) . 6ft5in. Gallons per Stroke • ■ -tt/i The cost per gallon was not quite half a mill, 20.24 gal- lons costing, one cent. The height of the lift varied as the water fell from a depth of 1670 feet to 1945 feet, the lowest point reached in this period. Probably the average lift was near 1800 feet. From October 1st, 1876, to March 1879, or in twenty-nine months, his pump made 7,432,054 strokes, and raised 306,572,228 gallons, at a cost of 8649 cords of wood, valued at $10.50 per cord. The stoppages amounted to 903 hours, 44 minutes. The Hale & Norcross, Savage and C. & C. pumps were working at their full capacity ; the Belcher, Overman, and Gould & Curry pumps were working at re- duced speed ; the Kequa, had no spear-rod, and the Jacket was not built in the fall of 1878. Three of the series were therefore run at their full capacity, three others at diminished speed, and two were idle. The total capacity of these new- pumps may be taken at about twice the amount of water they were actually throwing at the time mentioned, or about 80,000,000 gallons, or 320,000 tons a month. Of the old geared pumps there were six at work raising about one-third the water of the lode. This does not include either the number of pumps in idle mines or in those mines which, like the Julia, do not claim to be on the Comstock proper. The latter lie so near that lode as to drain the same rocks, and in any complete computation of drainage they should be accounted for. The spear-rods are always of Oregon pine, and vary from 11 to 14 inches in diameter. The extreme variation in quantity of water to be raised ia not usually met by especial arrangements, but by slowing the engine or stopping it entirely for short intervals. Most mines increase the diameter of the pump cylinders in the upper part of the shaft, but not all. The Eequa shaft has pump cylinders placed on each side of the rod, which in ordinary conditions of drainage are worked singly, but can be doubled on requirement. For single working, the suc- cessive cylinders on alternate sides of the rod are used. All the pumps on the Comstock are single acting ; but the Alta mine at Devil's Gate has two spear-rods and pumps at both strokes, an arrangement which saves the use of balance- bobs. The cylinders of this engine also are compounded. ' Though, the cultivation of the soil requires artificial ir- 188 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. rigation in this region, the vast quantity of mine waters are but little used for this purpose. Running into the gulches of Six-Mile Canon and Gold Canon, they serve to carry down the tailings from the mills where the ore is treated, and on their way are employed to operate a considerable number of blanket tables and pans for concentrating and treating the tailings. Finally they take their way to the Carson River, about seven miles distant by their route. Looking to the future, it is not improbable that the problem of deep mining will meet its greatest difficulty in drainage. The heat of the mines can be controlled sufficiently to afford even better conditions for work at great depths than have been enjoyed hitherto. But the deepest points of excavation are already 1000 feet below the Carson, the drainage area has greatly extended, and must now interfere seriously with the natural channels of relief to surface waters over wide districts. The extraordinary persistence of the Savage water and its return nearly to its highest level during a three months' rest of the pumps, after losing more than 2,000,000 tons by pumping, has not been explained. Still it is true that the resources of engineering have by no means been exhausted in the present mode of drainage, and_ the new shafts will undoubtedly offer great advantages in this respect over their predecessors, — From "The Oomstock Lode bj John A. Church, E. M, Ph. D." THE GEOLOGY OF THE OOMSTOCK LODE AND THE WASHOE DISTRICT. THE CoMSTOCK LODE lies on the east slope of the Virginia Range, a northeasterly offshoot from the range of the Sierra Nevada. The region is a desert, supporting scarcely any vegetation besides the sage- brush. Portable water is found only in quantities too small to supply a settlement, and the town now depends for its supply on a point in the Sierra Nevada, thirty miles away. The mines were first opened in this inhospitable region in 1859, but have since been pushed with such vigor that their product is supposed seriously to have affected the silver market of the world. They have produced about $31 5,000,000 worth of bullion, of which $175,000,000 was silver (at the rate of one ounce equal to $1.2929). Qf the total yield, $115,- 871,000 has been disbursed in dividends. The last great ore body discovered yielded $111,707,609.39, of which $74,250,000 was paid in dividends. The number of men employed in the mines on June 1, 1880, was 2,770, and the sum annually dis- bursed in wages is now $4,550,000. The aggrega,te horse power of the machinery of the mines is 24,130. The total length of shafts and galleries exceeds 150 miles, and the greatest depth reached is above 3,000 feet. As has long been known, the Comstock lode presents scientific questions of an interest commensurate with its economical importance, and a number of famous geologists have written more or less fully on the subject. Besides numerous scattered papers, several important memoirs have been printed. Baron von Richthofen made an examination in 1865, the results of which were printed by the Sutro Tunnel Company, but were not published in the proper sense of the word. It is a very remarkable paper, and the portions relating to the geology are reproduced in this report almost in full. In 1867 Baron von Richthofen also published a paper entitled " A Natural System of Volcanic Rocks," as a memoir of the California Academy, in which the system proposed is avowedly based to a great extent on the geology of Washoe. At the date of these papers microscopical lithology was still in embryo, and Mr. Sorby's experiments were attracting attention as possibly promising important results. It is not wonderful, therefore, if the present inquiry, in which the microscope has been used as a field instrument, has led to different lithological results; while, so far as the structure and vein formation are con- cerned, the greater part of this geologist's views are confirmed in a remarkable manner. In 1867-'68, Mr. Clarence King, who was in charge of the exploration of the 40th parallel, made an examination of the lode, down to the 800-foot level.* He accepted von Richthofen's propylite, though stating a * Exploration of the 40th Parallel, Vol. III. doubt whether it might not eventually prove identical with andesite. The. quartzose rock of the district, which von Richthofen had determined as a pre-Tertiary quartz-por- phyry, King regarded as quartz-propylite. The most promi- nent feature of this memoir is the graphic description of the vein phenomena from the surface down. In 1875, Prof F. Zirkel examined the lithological collections of the 40th parallel.! Among the slides which he describes are thirty- three from the Washoe district. He confirnjed the indepen- dence of propylite and quartz-propylite as lithological species, regarded the quartzose rock as dacite, corrected the deter- mination of the granular diorite (it had been considered syenite), and added augite-andesite, rhyolite, and a strange variety of basalt to the list of rocks previously recognized. In 1877, Mr. J. A. Church, in connection with the United States Surveys West of the 100th Meridian, under Captain Wheeler, examined the workings down to the 2,000-foot level. Mr. Church accepted the lithology of his predecessors, with some exceptions a little difficult to follow, but though he mentions slides of the rocks, describes none. His memoir contains a number of ingenioiis hypotheses, prominent among which are the following : That diorite was a thin flowing lava, and spread over the country in successive thin horizontal beds ; That propylite and andesite were laid down in the same manner on the diorite, and the whole bedded mass was tilted or folded in such a way that the eruptive strata assumed their present position with an inclination of about 45° ; That the ore was deposited by substitution for propylite, regulating the Com- stock to the class of Fahlbands ; That the heat of the Comstock is due to the kaolinizing action of surface waters on the feldspar of the country rock. A topographical map of the district was published by the Expedition of the ^Oth Parallel, but a more detailed contour map, on a larger scale, was made, in 1879, under orders of Captain Wheeler, by Mr. A. Karl. Decomposition of Rocks. — The economical impor- tance of the district, the obscure character of some points in its geology, and the great weight of the authorities whose investigations had already been published made it essential that the work done under the new United States Geological Survey should be supported by the strong- est and most detailed evidence In laying down the va- rious formations the microscope was in constant use, slides being ground as the occasion arose, and the results obtained from them finding immediate application in the extension of the work. . The area in which the Comstock lies is characterized by a wide-spread and profound decom- position of the rock masses, and a study of the lithology of the district resolves itself primarily into an investigation into decomposition. In spite of the most painstaking choice of specimens, there is not one in fifty of those col- lected underground which contains a particle of any of the characteristic bisilicates, secondary minerals replacing them throughout. Even the feldspars are rarely intact, and are sometimes wholly decomposed. AVhen the steps of these processes of degeneration are once understood, it is com- paratively easy to infer the original composition and struc- ture of the rock. Some of the results obtained concerning the decomposition of the Washoe rocks are the following : Hornblende, augite, and mica generally pass into a chloritic mineral, which, so far as can be judged by any optical tests now known, is almost without exception the same, from whichever of the primary bisilicates it may have originated. This chlorite is generally green, but in especially compact masses appears greenish-brown under the microscope. It is strongly dichroitic, but, except in dense masses, appears nearly black between crossed Nicols. It is fibrous, often spherolitic, and invariably extinguishes light parallel to the direction of the fibres. It thus bears a considerable resem- blance to fibrous green hornblende, but the cases are very rare, if they actually occur, in which a careful examination will not serve to discriminate between the minerals. This chlorite is decidedly soluble. It occurs in veinlets and diffused through the ground mass and through other min- erals when these have become pervious through decomposi- tion. It is especially striking as an infiltration in the feldspars, where, of course, it is readily visible. All the . t E.'cploration of the 40th Parallel, Vol. VL . ' THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 189 stages can be traced, from the first inconsiderable attack of the biailicates, through rocks in which chlorite occurs wholly, or almost wholly, as admirable pseudomorphs alter the bisilicates, and up to cases in which the secondary mineral is wholly diiiused through the mass of other pro- ducts of decomposition. Epidote is usually in Washoe a product of the decomposition of chlorite. Comparatively very few occurrences of epidote are explicable on the sup- position that the mineral is the direct result of the decom- position of the primary basilicates ; none are inexplicable on the supposition that chlorite represents an intermediate stage in the alteration, and hundreds of cases show beyond question epidote developing in chloritic masses, and sending characteristic denticles and fagot-like ofishoots into the comparatively homogeneous chlorite. A considerable num- ber of drawings, which are photographic in their fidelity, have befen made, illustrating these processes. Epidote, too, appears to be soluble, but to a much slighter extent than chlorite. The veinlets of epidote are often, though proba- bly not always, a result of the alteration of chlorite. No evidence has been obtained that feldspars are ever con- verted into epidote, and the dissemination of fresh horn- blende particles in feldspars in any considerable number has not been observed. In many cases, on the other hand, it can be shown that feldspars have been impregnated with chlorite, from which epidote has afterwards developed. Chlorite does not always change to epidote, and appears often to be replaced by quartz and calcite. This is fre- quently visible in slides, which also show its alteration to epidote. No certain evidence of the alteration of epidote has been met with. In the decomposition of the feldspars, the first stage appears to be the formation of calcite. This sometimes leaches out, leaving small irregular cavities, and these cavities are not infrequently filled with liquid, sometimes carrying a bubble, which is commonly stationary, but oc- casionally active. Thus secondary liquid inclusions are formed, which may mislead in the diagnosis of a rock. Pri- mary liquid inclusions are either more or less perfect nega- tive crystals or vesicular bodies. The vesicles often assume strange forms through pressure, such as are often observed in air-bubbles in the balsam of a slide, but their outlines are composed of smooth curves. The secondary fluid inclusions are bounded by jagged lines. Inclusions of this kind are never met with unaccompanied by other evidences of decomposition, and thus are abundant in the altered outer crust of andesite masses, the inner portions of which show none of them. There is every reason to suppose that the same secondary inclusions would form in older rocks, and similar occurrences have been noticed. Kaolin possesses so few characteristic optical properties that it is not identified with ease or certainty under the microscope. No kaolin has been identified in the Washoe rocks, and while it is by no means asserted that they contain none, it seems hardly possi- ble that, had it formed a prominent constituent, it would have eicaped observation. The presence of enormous masses of " clay" on the Comstock does not prove the existence of much kaolin, for so-called clays are largely attrition mix- tures. But of this later. An increase of volume appears to accompany the decom- position of the Washoe rooks. This is perceptible where dense masses, such as the more compact andesites, are sub- jected to the process. Angular blocks are then converted into a series of concentric shells of comparatively soft matter, which approach the spheroidal shape more and more as the diameter diminishes. Often the nodule of undecom- posed rock is found at the center, and such masses afford the very best opportunity for studying themacroscopical appear- ances resulting from degeneration. When the attacked mass is large, erosion often exposes the fresh core, which then, ofibring greater resistance, projects as a "cropping' or, if it has an elongated form, like a dike above the surrounding country ; and as the tendency of the mere action of atmospheric agencies is to the production of ferric hydrate rather than chlorite from the bisilicates, the first impression which such a mass produces is that of an older and younger rock in conjunction. Nevertheless, suflaciently thorough examination will reveal a transition. When the rock is not soHd, but brecciated or loose-grained, sufficient ^ ^^ ^^^^^ ^^ ^ _ ^ ___^^ ^ ^^ _ ...space seem.s often available to permit the requisite increase . porphyritis. rook, of which the main constitu^ts are plagioolase of volume without disintegration. Large and often promi- nent masses of very strongly cohesive decomposition-pro- ducts derived from breccia are common in the district. The mineralogical character and the microscopical phenomena of decomposition seem to be identical in the different rocks. Those refined manifestations of physical character by which it is so often possible to discriminate between older and younger rocks, and between the various rock species when fre^h, are nearly or quite obliterated by the decomposition process, which impresses its own character on the product. PropyKte. — The present investigation of the geology of the Washoe District has failed to establish the existence of propylite. Fnll proof of this responsible statement cannot of course be given in this summary of results. It consists in a process of exhaustive elimination. A study of each of the rocks of the districts, in all stages of decomposition, has led to the identification of all of them with other and previously recognized species. The reduction of rocks of originally difierent aspect to apparently uniform character by chlorite decomposition is strikingly evinced by a mere list of the species in the district, which have been grouped under the terms propylite and quartz-propylite. These are granular and diorite, porphyritic diorite, diabase, quartz- porphyry, hornblende-andesite, and augite-andesite. The peculiar " habitus " which is always referred to in descrip- tions of propylite appears to consist in the impellucidity of the feldspars, the green and fibrous character of the horn- blende, the greenish color which often tinges feldspars and ground-mass, and a certain blending of the mineral ingredi- ents. The impellucidity of the feldspars (which surprisingly alters the appearance of rocks originally containing trans- parent unisilicatesj.isdue to incipient decomposition, espe- cially, as it seems, to the extraction of calcite. The " green hornblendes" are simply pseudomorphs of chlorite after hornblendes or augite, as the case may be. Excepting the granular diorite, not one of the rocks from which propylite forms have ever been found in the Washoe District containing green hornblende, (barring uralite). The other character- istics are due to the diffusion of chlorite and the formation of epidote from it. The description of propylite as a species arose from the erroneous determination of chlorite as green hornblende — a very natural mistake before the microscope was brought to bear on the subject, since even with that instrument the same error may be committed if color and dichroism are exclusively relied upon as diagnostic tests. The microscopical characteristics of propylite are illusory. Finely disseminated hornblende in the. ground-mass of a Washoe rock is very rare, and far rarer is the presence of particles of hornblende in feldspars. The propylites contain glass inclusions and primitive liquid inclusions, or not, according to the rocks from which they are derived. Base is rare in propylites; where it originally formed a constituent of the rock, it has for the most part undergone devitrifica- tion, and the writer does not hesitate to affirm that there is no proof yet known of the existence of a pre-andesitic Tertiary eruption in the United Soates. The term propylite should not be retained in the nomenclature of American geology even to express, certain results of decomposition, for the equally loose term greenstone seems to cover the same ground and has priority. The Rooks of the Washoe District. — ^The rocks occurring in the Washoe District are granite, metamorphic schists, slates, and limestones ; eruptive diorite of three varieties; metamorphic diorite, quartz-porphyry, an older and a younger diabase, an older and a younger hornblende- andestite, augite-andesite, and basalt.* The report contains * The signification attached to these names has varied somewhat as the science of llthology has progressed. Some of the main points of their definitions as here understood are as follows : Granite, pre-Tertiary non-vitreous crystalline rock, of which the principal constituents are orthoclase, quartz, and mica or hornblende. Diorite, pre-Tertiary non-vitreous crystalline rock, of which the main constituents are plagloclase and hornblende. It may or may not contain quartz. Quartz-porphyry, pre-Tertiary glass-bearing porphyritic rock, of which the main constituents are orthoclase, quartz, and hornblende or mica. Diabase, pre-Tertiary, more or less porphyritic rock, of which the main constituents are plagioclase and augite. AudesitCj Tertiary or post-Tertiary, glass-bearing, more or less 190 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. a discussion of each of these rocks, embracing a detailed de- scription of about seventy-five slides well illustrated. Here they can be dismissed with a very few remarks. Concerning the granite and basalt there has scarcely been a question. They are eminently characteristic occurrences. The metamorphic diorite sometimes resembles eruptive diorite, and has been taken both for diorite and granite ; usually it bears some resemblance to augite, andesite or basalt, and has been determined microscopically as an un- usual variety of the latter rock. It is composed essentially of oligoclase and hornblende. The hornblende was originally colorless, but through some change (perhaps absorption of water) it is in large part converted into an intensely green variety. The hornblende polarizes in unusually intense colors. The quartz-porphyry underlies both hornblende, andesite and diabase. The microscope, Thoulet's method of separation, and analysis show that the predominant feld- spar is orthoclase. It is characterized by the association of liquid and glass inclusions usual in quartz-porphyry, to which also the ground-mass corresponds. In one locality, near the Red Jacket, the quartz is nearly suppressed, and the rock is excessively fine-grained. It is a felsitic modi- fication of the ordinary variety. This rock, which Baron v. Richthofen determined correctly, has since been called quartz-propylite, dacite, and. in its felsitic modification rhy- olite. Most of the quartz-porphyry is greatly decomposed. The eruptive diorite is sometimes granular, sometimes por- phyritic. In the porphyritic diorite mica sometimes predominates over hornblende. Quartz is irregularly dis- seminated through the rock. In the granular diorite the hornblende is sometimes green and fibrous, sometimes brown and solid. In some cases it can be shown that the latter variety of hornblende is altered to the former, and possibly this is ordinarily the case. Augite is not uncommon, and a part of the fibrous green hornblende is very likely uralite, but in the granular rock the outlines of the crystalline grains are rarely sufiiciently regular to determine this point. In the porphyritic diorites the fresh hornblende is always brown. Even in this latter variety of the diorites well-developed feldspars are rare. The porphyritic diorites have for the most part been regarded as propylite, and some occurrences of the granular rock have been classed in the same way. Some of the fresher porphyritic diorites have been mistaken for andesites, the resemblance to which is sometimes strong. The older diabase is porphyritic. Almost the whole of this ■rock is in a very advanced stage of decomposition, and when fresh considerably resembles an augite-andesite, but its ground-mass is thoroughly crystalline ; it contains no glass inclusions, but frequent fluid ones ; the augites show both pinacoidal and prismatic cleavages, and a tendency lo urali- tic decomposition. It is also manifestly older than the other diabase. An important characteristic is the lath-like deve- lopment of the porphyritic feldspars, for in cases of extreme decomposition of the bisilicates this characteristic at least serves to suggest whether the rock is dioritic or diabasitic. The older diabase has been considered as propylite or ande- site, according to the stage of decomposition. The younger diabase ("black dike") is very highly crystalline and not porphyritic. It is bluish when fresh, but in course of a few hours turns to a smoky brown. It is identical with many of the diabases of the New England and the Middle States. The older hornblende-andesite and the augite-andesite where fresh are typical rocks macroscopically and microscopically. When decomposed they have been taken for propylite. The younger hornblende-andesite which overlies the augite- andesite is a cross-grained, soft, reddish or purplish rock, with large glassy feldspars. It has always been supposed to be trachyte; but, when endeavoring to determine the dif- ■ferent species of feldspar under the microscope, the writer was unable to include any satisfactorily determinable ortho- clases in the list. Dr. G. W. Hawes was kind enough to undertake the separation of the feldspars by Thoulet's method, and the analysis of the resultant feldspars. The specimen selected was the most trachytic in appearance, ' and hornblende, mica, or augite. The andesites in which an'^Mu is the characteristic bisilicate appear to be separate eruptions, while mica and hornblende replace one another to a variable extent in the same eruption. In the andesites feldspar predominates. Basalt, Tertiary or post-Tertialry plagioclase augite rook, with ' pjfe^DOimant augite; ustially-charactenzeaby thepreeen6«of.oiiviip. that of Mount Rose, but no feldspar whatever was found corresponding either physically or chemically to orthoclase. There is much reason to believe that trachyte occurs less often than had been supposed in the Great Basin area. Structural Results of Faulting. — The evidence oi faulting on the Comstock is manifold, and has been re" cognized by all observers. The irregular openings in the vein, the presence of horses, the crushed condition of the quartz in many parts, the presence of slickensides and of rolled pebbles in the clays, are all conclusive on this point. Both to the east and west of the vein, too, the country rock shows a rude division into sheets, and along the partings between the plates evidences of movement are perceptible, decreasing in amount as the distance from the vein increases, according to some law not directly inferable. All the evi- dence points to a relative downward movement of the hanging wall. The question of the character of the contact surface, whether it is a faulted surface or a continuation of a former exposure of the east front of Mount Davidson, is not to be settled by mere inspection. A cross-section to scale takem from Mr. King's maps shows immediately that while the dip of the lode is 45° or more, the maximum slope of Mount Davidson is about 30°. This fact, taken in connection with the character of the west wall when exposed, indicates that the surface is the result of faulting. A natural surface' sloping for a long distance at an angle of above 40°, too, is very unusual. On the other hand, the coincidence between the contours of the west wall and those of the exposed sur- face has been notorious from the earliest days of mining on the lode, and it seems a less violent supposition that the steep flank of the mountain passes over into the still steeper wall of the vein than that the range has experienced an erosion modifying its angle 15° and more, and has still retained the details of its topography otherwise unaltered. It is plain that the elucidation of the faulting action on the Comstock is a very important structural problem, and that it is most desirable to account quantitatively for the results, as well as to prove the existence of a notable dislocation. The most striking and wide-spread evidence of the faulting is the apparent relative movement on the contact surfaces between more or less regular sheets of the east and west country rocks for a long distance in both directions from the lode. Each sheet appears to have risen relatively to its eastern neighbor, and to have sunk as compared with the .sheet adjoining it on the west. The consideration of a sheet or plate of rock under the influence of friction of a relatively opposite character on its two faces, therefore, forms the natural starting point for an examination of the observed conditions. It will be shown in the report, that if a country divided like the Comstock area into parallel sheets ex- periences a dislocation on one of the partings under a com- pressive strain equal at each parting, a vertical cross-section will show a surface line represented by two logarithmic equations : y^A [m—x — 1) — X tan i? y^A (1 — mx) -\- X tan 9 in which A is one-half of the throw of the fault, and i9 is the angle which the a;-axis makes with the original surface. The y-axis coincides with the dip line of the parting on which the fault occurs, and the origin is at the cropping of the fault-fissure. The coordinates are rectangular. The correctness of this equation is confirmed by a very simple and satisfactory experiment. Fig. 1 shows a cross-section such as might result from a fault on the line Y A, supposing the original surface to have been level. The discussion is also extended to the case in which the compressive strain is not uniform, but varies proportionally to the distance from the fault-plane. This case also results in a logarithmic equation of a more complex character. A discussion of the logarithmic equation as an expression of faulting action leads to some very interesting results, some of which are as follows : AVhere a fault of the class under discussion has occurred, and where the resulting surface has not been obscured by deep erosion, the original surface can be reconstructed or calculated, and the amount of dislocation determined. This is also true where more than one rock is involved. Where; as is nearly always the case, the niove- inent on the- fault-plane is- equivalent to -a rise of-thefbot THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 191 wall; the hanging wall seen in cross-section will assume the form of a sharp wedge, and this wedge will be very likely to yield to the compressive strain, and break across. If the movement of the footwall on the fault-fissure were down- ward, a surface line would form, which is scarcely ever met with in nature, and the inference is that faults of this kind are of extreme rarity. This not only confirms the observa- tions made in mines, but places the fact on a wide basis of observation. If a fault, accompanied by compressive strain, takes place on a fissure in otherwise solid rock, the walls are likely either to be distorted, if they are composed of flexible material, or to be fissured into parallel plates if the material is rigid. In the latter case the sheets of rock will also arrange themselves on logarithmic curves. If the intersection of a fault fissure with the earth's surface is not a straight line, but is sin- uous or broken the se- condary fissures will be parallel to the original one, and in the resulting surface each inflection of the trace of the fissure on the original surface concave toward the lower country will be repre- sented on the faulted sur- face by a ravine, and each inflection convex towards the lower country will result on the faulted sur- face in a ridge. This is illustrated in Fig. 2, which is a contour map of the country represent- ed in Fig. 1, if the fault- fissure is supposed to have intersected the original surface on the undulating line A B. There is also a direct relation between the con- tours of the footwall of such a fissure and the surface contours. If the original surface was a horizontal plane, the surface contours will be identical with the footwall contours. A fault may be the result of a single extensive movement, or of suc- cessive slight movements in the same sense, with intervals of quiescence. It can be shown, with a high degree of pro- babrlity, that the result of an intermittent dislocation will be sensibly the same as that of a continuous one. Fig. 1.— Fault Curve. Fig. 2. — Faulted surface. The theory, though worked out independently of the Comstock, applies to it with much precision. Equations can be given representing very closely the surface line of a cross-section, the amount ofthe'fault can be determined, etc. It can be shown that the erosion since the beginning of the fault is very slight, that the cations of the range were pro- duced by faulting, and have been only slightly modified by erosion, whence the correspondence of the contours of the footwall with those of the surface. The east fissure is a re- sult of the faulting, and the ore has been deposited since Washoe became a region of insignificant rainfall. The sheeted structure of the country is, in all probability, due to the fault. It is^of course, most unlikely that the Comstock is the only vein in which the deposition of ore is recent and has been accompanied by faulting, and some conclusions as to the occurrence of veins in such cases may be welcome to some of the readers of this paper. In a locality modified by faulting action under pressure the fact will appear in the parallelism of the exposed edges and faces of rock sheets. If erosion had not seriously modified the surface resulting from the faulting action, the logarithmic curve will be recognizable to the observer looking in the direction of the strike. The main cropping of the vein is to be sought at the point of inflection of the curve, which will be found nearly or exactly midway between the top and bottom of the hill- side. One or more se- condary vein-croppings should be looked for be- low the main cropping, and these, so far as yield is concerned (but not in regard to location of claim), may prove even more important than the main fissure. The dip of the vein will be to the same quarter as the slope of the surface, but of course greater in amount. The flatter the surface curve the smaller the angle of dip will be. The mean strike will be nearly or quite at right angles to the direction of the spurs andravincsofthefaultcd area. If, besides the movement of one or other wall in the azi- muth of the dip, there has been a dislocation in the direction of the strike, chimneys will open, all of them on the same side of the diflerent ravines. Surface evidences will often enable the prospector to determine on which side the chimneys are to be found. On the barren sides evidences of crushing and of closure of the fissure are probable. The fissure is more likely to have a constant dip (barring the secondary ofP- shoots than a constant strike, but, of course, irregularities of dip, like those in a strike, will open chambers which may be productive. Offshoots into the hanging wall may occur at any depth, but none, except those near enough to the main cropping to reach the surface where it has a very con.sid- erable slope, are likely to be continuous. Finally it is shown that the law of land slips is also capable of expres- sion by logarithmic equations, and that a large part of the details of the topography of grassy hills is formed in obedi- ence to this law. Occurrence and succession of rocks. — Granite oc- curs on the surface only in a very limited area near the Red Jacket mine, but it is certain that it has considerable underground development, for it has been struck at the Baltimore, the Rock Island, and by a tunnel to the south- west of the latter. The granite is overlaid by metamorphic rocks, which, however, are less metamorphosed close to it than at a distance from it, and the probabilities are that the sedimentary strata were laid down upon the massive rock. The sedimentary rocks are limestones, crystalline schists, and slate. They are badly broken and highly al- tered, and the search for fossils was not rewarded by success. The general geology of this part of the Great Basin, however, leaves little doubt that they are Mesozoic. A considerable area of metamorphics has been exposed in the southwest of the region by the erosion of the overlying eruptive masses. North and east of Silver City, however, the surface shows scarcely any metamorphics, while they play a large part in the underground occurrences as far as the Yellow Jacket. In the Gold Hill mines black slates form the footwall of the lode. They are intensely colored with" graphite, and often very highly charged with pyrites; 192 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. They are frequently mistaken for " black dike," but a mo- ment's inspection in a good light shows their sedimentary origin. The presence of such carbonaceous rocks at greater depths would explain the formation of hydrogen sulphide. There is also an obscure occurrence of metamorphic lime- stone in the Sierra Nevada mine between granular and mi- caceous diorite. It appears to be conformable to the face of the granular diorite. The metamorphics in and about Gold Hill appear both to overlie and to underlie diorite, and there is little doubt that sedimentary strata were present at the period of the diorite eruption. Between the metamorphics and the quartz porphyry in the southwest portion of the area is a considerable extent of a black, crystalline rock, the relations of which are some- what obscure. It has already been referred to as a meta- morphic diorite. Cases of transition into distinctly meta- morphic rocks no doubt occur, but none of an indiibitable character were discovered. On the other hand, in some oc- currences the rook is a distinct breccia, and bears a strong resemblance to augite-andesites or basalts. The point to which most weight has been given in determining its orgin is its association with the quartz-porphyry, and the distinct- ly metamorphic rocks. It appears to be exposed wherever the quartz-porphyry is eroded, and is frequently also associa- ted with underlying metamorphics. Its resemblance to a volcanic rock, too, is greatest on its upper surface, and its analysis shows a composition which would be strange for an eruptive diorite. Besides the surface occurrences, it is found particularly well developed in the Silver Hill mine. The principal exposure of diorites is on the west of the lode through Virginia City, but there are several outlying occur- rences about the Forman Shaft,, and again far to the east at the Lady Bryan mine, which show that the underground development of the rock is a very extensive one. It forms the footwall of the lode from the Tellow Jacket north. The diorite is excessively uneven in its composition, and in al- most any area of a hundred feet square several modifications are to be found. This fact, taken in connection with the microstructure of the rock, is pretty conclusive evidence that it has never reached a higher degree of fluidity than the plastic state. The varieties can be roughly classified as granular diorite, porphyritic-hornblendic diorite, and por- phyritic-micaceous diorite. But intermediate varieties are of constant occurrence. There seems, nevertheless, to be a certain amount of order in the disposition of the different varieties. Mount Davidson, from Bullion Ravine to Spanish Ravine, is almost altogether granular on the west of the LODE, but to the north and south of these limits porphyritic forms prevail. In the neighborhood of the Utah mine mica becomes the predominant bisilicate, and the last variety is also the one which occurs in the neighborhood of the Formin Shaft. How this orderly disposition of the various diorites came about is a somewhat obscure question. The diabase appears but to a very trifling extent upon the sur- face, though it is by no means unlikely that an exposure of this rock occupied the position now covered by Virginia City. Underground it is extensively developed from the Ooerman to the Sierra Nevada, and from the lode to the Combination Shaft, as is seen in the cross-section on the Sutro Tunnel line. Its great importance is due to the fact that all the productive bodies of the Comstock have been intimately associated with it, as, indeed, are many of the famous silver mines of the world. This diabase is of a rather unusual character, being more than com- monly porphyritic, and containing comparatively little au- gite, a trifle less than twenty per cent. In appearance it is often not dissimilar to the andesites, but the resemblance does not extend to details. Almost the whole of this dia- base is greatly decomposed, and has hitherto escaped recog- nition on that account. Between the east country diabase and the west wall of the Comstock occurs a thin dike, which has long been known as " black dike." It is only in the lower levels that fresh oc- currences of this material have been met with. The " black dike" appears to be identical with the Mesozoic diabase of the Eastern States, from which it is scarcely distinguishable microscopically, or chemically. This younger diabase forms a remarkably microscopically thin and uniform dike, nowhere more than a few feet in thickness, extending from the Savage southward to the Overman, and the branching off to the southwest as far as the Caledonia shaft. This is the only dike in the district, in spite of the prevalence of eruptive rocks, Its presence shows that- the fissure on which the Comstock lode afterward formed was first opened in pre- Tertiary times, and its uniform thickness shows that its in- trusion antedates any considerable dislocation on the con- tact. This inference receives strong confirmation from the evidence already explained that the faulting is a compara- tively recent phenomenon. The occurrence of the two dia- bases also goes a long way toward demonstrating the nature of the fork in the vein, which has always been a mysterious point in the geology of the lode. The prolongation of the " black dike" beyond Oold Hill is toward American Flat, whereas the older diabase extends in the direction of Silver City. Much the larger part of the surface of the district is oc- cupied by audesites,of which there are three varieties distinr guishable both lithologically and geologically. .These are a younger and a later hornblende-andesite, the latter of which has hitherto been considered a trachyte, and an augite- andesite intermediate in age. The older hornblende-andesite has in part long been recognized as such and is deceptive only when highly decomposed. It occupies a belt immedi- ately east of the older diabase {seeSutro Tunnel section), a large area on the heights immediately west of the diorites, and a considerable area at and north of Silver City. The latter occurrence is noteworthy for the unusual size of the hornblendes, which are sometimes several inches in length. The augite-andesite occupies a second belt of country east of the lode and beyond the earlier hornblende-andesite, and is also extensively developed to the north and south of the diorite. The Forman Shaft penetrates 1 ,200 feet of this rock before passing into the hornblende-andesite. The reasons are given elsewhere for considering the rock heretofore regarded as trachyte to be an andesite. It is rough but soft, and its red and purple colors and large glassy feldspars made the mistake an easy one. The Flowery Range, the Sugar Loaf, Mount Emma, and Mount Rose, are all of this rock, which also occurs in two little patches close to the Sierra Nevada mine. These latter have been cut off from the quarry above the Utah by the erosion of Seven-Mile Cafion. The patches of rock near the Combination Shaft and. the new Yellow Jacket Shaft, which have sometimes been regarded as trachyte, are merely decomposed older hornblende-andesite. The occurrence of basalt is exceedingly limited. It is a .fine, fresh, and typical basalt, but there is no evidence of any direct connection between its eruption and the vein phenomena. Chemistry. — The chemical history of the Comstock is no doubt a very complex one, nor are there by any means suflicient data to trace it in detail. All that can be attempted here is to show that the results observed might naturally follow from highly proba-ble causes. The decomposition of the rocks shows three important features. The formation of pyrite from the bisilicates, the decomposition of the bisil- icates into chlorite (which is in part further altered to epidote), and a partial change of the feldspar. The pvrite appears to have formed at the expense of the bisilicates. The really fresh rocks contain no pyrite, but minute crystals often occur in or attached to partially decomposed bisili- cates. Sometimes distinct pseudomorphs of pyrite after augite or hornblende are visible, but this is not common because the average size of the pyrite crystals is about one- half that of their hosts. A macroscopical comparison, too, of series of rocks increasingly decomposed shows that the pyrite is to all appearances associated with the bisilicates, and in extreme cases replaces them with an entire corres- pondence of distribution, so that the cumulative evidence is all in one direction. It is well known that ferrous silicates in contact with waters charged with hydrogen sulphide produce pyrite. The transformation of the bisilicates into chlorite is not obscure in its general features, though its details are far from clear : like those of most similar decom- positions chlorite is essentially a silicate of aluminium, iron, and magnesia. Chlorite contains nearly equal quantities of alumina and magnesia ; whereas augite, for example, con- tains nearly four times as much of the protoxide base. If the amount of alumina is supposed to remain unchanged, the alteration must be accompanied by a separation of all the lime and of the greater part of the silica and the magne- sia. The relations of the other bisilicates to chlorite are THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 193 similar and their conversion to chlorite is a familiar fact, particularly in the neighborhood of silver ores. The triclinic feldspars of the Washoe District retain their strise and optical properties in a recognizable form much longer than the bisilicates. Among the mine rocks it is very rarely that bisilicates occur undecomposed, but it is the exception when a slide 'of a tolerably hard rock does not show recognizable feldspars. When the feldspars are altered they are replaced by an aggregate of polarizing grains, which appear to be quartz and calcite with some opaque particles, but with no transparent amorphous material. Two generically distinct processes of decomposition of feldspar have hitherto been recognized. The one results in the formation of kaoline, or a less hydrous aluminium silicate. The other is character- ized by the introduction of magnesia and a little water, and the separation of soda and lime. Everything seems to point to the latter change as the characteristic one in the Washoe District. Kaolin could hardly be present in large quantities without being recognized microscopically. The analyses of the clays, too, show that when allowance is made for the presence of hydrous chlorite there is not enough water to correspond with any large percentage of kaolin. In fact the analyses of the clays so exactly correspond to the compo- sition of the firm rocks that the great masses of clay evidently represent only equal volumes of disintegrated rock. On the other hand, the magnesia, which plays a part in the alter- native decomposition of plagioclase, is furnished by the conversion of the bisilicates to chlorite, the microscopical phenomena are just what might be expected, and the analyses correspond. On the whole, therefore, it appears improbable that there has been any large amount of kaoli- nization in the Washoe District. Epidote is very common on the surface, while under ground it .seems rare and con- fined to the neighborhood of the fissure. The conversion of chlorite to epidote must be accompanied by a substitution of lime for magnesia, and by the conversion of ferrous to ferric oxide. It might very readily occur in the presence of solutions containing carbonic acid and free oxygen, or when surface waters mingled with waters rising from lower levels; for epidote is far less soluble than chlorite, and under these circumstances would form in obedience to the general law of precipitation. Its occurrence is usually compatible with this supposition, but it is not so decisive as to warrant a positive assertion that the conditions of its formation are those in- dicated. As is well known. Prof. F. Sandberger has very ably maintained what is known as the lateral-secretion of ore deposits.* With a view to testing the probabilities of this theory, with reference to the Oomstock, the rocks of the dis- trict have been essayed with all possible precaution. The rocks found to contain precious metals were also separated by Thoulet's method, and the precious metals traced to their mineralogical source. The results of this investigation show many interesting facts, among which are the following : The diabase shows noteworthy contents in the precious metals, most of which is found in the augite. The decomposed dia- base contains about half as much of these metals as the fresh rock. The relative quantities of gold and silver in the fresh and decomposed diabase correspond fairly well with the known composition of the Oomstock bullion. The total exposure of diabase is sufficient to account for far more bul- lion than has been extracted from the mines. The gangue on the Oomstock is almost exclusively quartz, though calcite also occurs in limited areas. The ore mine- rals elude investigation for the most part because they are so finely disseminated as merely to stain the quartz, but it is fairly certain that they are principally argentite, and na- tive silver and gold, accompanied in some case by sulphu- ric antimonides, etc. The chloride has rarely been identified. Where ore is found in diorite, or in contact with it, it is usu- ally of low grade, and its value is chiefly in gold. The no- tably productive ore bodies have been found in contact with dialiase, and they have yielded by weight about twenty times as much silver as gold. It would perhaps be legiti- mate to infer from the chemical phenomena enumerated that waters charged with carbonic acid and hydrogen sul- phide had played a considerable part on the Oomstock. This is not, however, a mere inference, for an advance boring *Berg und Huttenmansohe Zeitang, vol. 30, 1880, 402 et ante.' 13 on the 3,000' level of the Yellow Jacket struck a powerful stream of water at 3,065 feet (in the west country), which was heavily charged with hydrogen sulphide and had a temperature of 170° F., and there is equal evidence of the presence of carbonic acid in the water of the lower levels. A spring on the 2,700' level of the Yellow Jacket, which showed a temperature of above 160° F., was found to be depositing a sinter largely composed of carbonates. Baron V. Richthofen was of opinion that fluorine and chlorine had played a large part in the ore deposition on the Oomstock, and this the writer is not disposed to deny ; but, on the other hand, it is plain that most of the phenomena are sufficiently accounted for on the supposition that the agents have been • merely solutions of carbonic and hydrosulphuric acids. These reagents will attack the bisilicates and feldspars. The re- sult would be carbonates and sulphides of metals, earths and alkalies, and free quartz ; but quartz and the sulphides of ^ the metals are soluble in solutions of carbonates and sul- ' phides of the earths and alkalies, and the essential consti- tuents of the ore might, therefore, readily be conveyed to openings in the vein wliere they would have been deposi- ted on relief of pressure and diminution of temperature. Some of the physical conditions of the process will be else- where considered. It has been claimed that the ore and quartz have been deposited by substitution for masses of country rock. This hypothesis is exceedingly doubtful on chemical grounds, but there is also at least one insuperable physical objection to it. In all processes involving the so- lution of angular bodies, it is a matter of common observa- tion that points and corners which expose a greater surface than planes are first attacked, consequently masses exposed to solution, substitution, weathering, and the like, always tend to spheroidal forms. Now, nothing is more common than to find masses of country rock included in the ore-bear- ing quartz. These masses are, in all cases which have come under the observation of th« writer, angular fragments, in form precisely such as result from a fresh fracture ; not a single instance has been observed in which a spheroidal rock was surrounded by more and more polyhedral concentric shells of quartz and ore. Heat Phenomena of the Lode. — One of the famous peculiarities of the Oomstock Lode is the abnormally high temperature which prevails in and near it. This mani- fested itself in the upper levels, and has increased with the depth. The present workings are intensely hot. The water which flooded the lower levels of the Gold Hill mines during the past winter had a temperature of 170° F. This water will cook food, and will destroy the human epidermis, so that a partial immersion in it is certain death. The air in the lower levels more or less nearly approaches the tem- perature of the water, according to the amount of ventila- tion. The rapidity of the ventilation attained in the mines is something unknown elsewhere, yet deaths in ventilated workings from heat alone are common, and there are drifts which, without ventilation, the most seasoned miner cannot enter for a moment. Except where circulation of air is most rapid, and in localities not far removed from downcast shafts, the air is very nearly saturated with moisture. It is a serious question how far down it will be possible to push the mines in spite of the terrific heat. The relation of the temperature to the depth from the surface is evidently one of great interest, but not entirely simple. If the rock were wholly uniform in character and unfissured the relation of temperature to depth would be wholly regular, and would be represented by a curvilinear focus. As the source of the heat was approached the rate at which the temperature rose would rapidly increase, and under the ideal conditions supposed, it would be possible to deduce the constants of the equation and to calculate the position of the source of heat. . But unless the source of heat were so close to the surface that the errors introduced by the presence of fissures, the lack of homogeneity of the rock, and the percolation of surface water, were insignificant in comparison with the rate of increase of the temperature, such a calculation would not be possible. A careful record of temperature has been kept at three of the newer shafts to a depth of 2,000 feet. On plotting these records as ordinates and the depths as abscissse no indication of regular curva- ture appears, being wholly obscured by the fluctuations due to the disturbing causes mentioned, tn other words, there 194 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. is as yet nothing in the observations to show any but local divergences from a strict proportionality between depth and temperature. The source of heat must, consequently, lie at a very great distance from the surface as compared with the depth yet reached, and the curve is to be regarded as still sensibly coincident with its asymptote. In order to elimi- nate the fluctuations of temperature as far as possible, Mr. Reade and Dr. Barus have computed the observations made at the Forman, Cumbination, and New Yellow Jacket shafts by the method of least squares, and also, for comparison with them, the observations of Mr. J. A. Phillips at the Rosehridge Colliery. Here it is sufficient to state that the mean data for rock and water on the Comstock result in the equation <=53.7-l-0-0327d while the Rosehridge Colliery observations result in the equation i=56+0.0150d t representing degrees F., and d the depth from the surface in feet. Since no evidence of curvature can yet be traced in the locus representing the relations of temperature to depth, these equations may be expected to hold good for depths greatly exceeding the present, but if more than local variations occur at any depth they will be in the sense of a more rapid increase of temperature. Boiling water will probably be encountered on some parts of the Comstock before the mines reach a depth of 5,000 feet, while the water of the Rosehridge Colliery will not boil before twice that depth is attained. Two causes have been suggested in explanation of the high temperature of the Comstock — the kaolinization of the feldspar contained in the country rock, and residual volcanic phenomena. Tlie theory that kaolinization is the cause of the heat appears to rest upon two positive grounds — that the solidification of water liberates heat and that flooded drifts have been observed to grow hotter. It is also claimed in favor of the kaolinization hypothesis that there is no evi- dence of any other chemical action proceeding with suffi- cient activity to afford an explanation, and that the reten- tion of igneous heat in the rocks is a sheer impossibility; while the hypothesis that the heat is conveyed from some deep-seated source to the mines by means of currents of heated water is characterized as somewhat violent and un- necessary. So far as the present writer is aware, there are no theoretical grounds upon which the heat involved in kaolinization can be estimated. The decomposition of feld- spar into kaolin and other products (supposing kaolin to result from the decomposition of plagioclase) involves sev- eral processes, of which some are more likely to absorb than to liberate heat. But supposing an anhydrous aluminium silicate formed without loss of heat, the thermal results of its combination with waters are by no means certain. Were the water contained in kaolin not water of hydration, but chemically combined, it would be possible from known ex- periments to compute approximately the heat which would be produced. It will be shown in the report that the cor- responding temperature would be so high as to be utterly at variance with known facts. The water is therefore the water of hydration. Of the heat involved in the hydration of salts we know that it is usually small, that it is some- times negative, and that the different molecules of water combine with differing amounts of energy, but of the heat of hydration of kaolin we know nothing. With a view to testing the theory of kaolinization as far as possible, Dr. Barus, at the writer's request, undertook some very difficult experiments presently to be described. The result of these experiments, in a word, was that finely divided, almost fresh cast country diabase, exposed to the temperature of boiling water and the action of saturated aqueous vapor for a week at a time, and for several weeks in succession, showed no rise of temperature perceptible with an apparatus delicate to the TnjVir of a degree C. It is by no means certain that kaolinization was affected by this experiment. The parti- cles of rook were indeed coated with a white powdery sub- stance, but in such small quantities that its nature could not be determined. It is still possible that when kaolinization oc?ur§, heat is liberated. It is also possible that at temper- atures above the boiling point and pressure greatly exceed- ing 760™m, feldspars are kaolinized ; but it appears no longer reasonable to ascribe the heating of drifts, which are at nearly normal pressure, to the reaction on the rocks of water below the boiling point. The scene of active and heat-pro- ducing kaolinization, if it exists at all, must, therefore,be at re- mote depths. As was explained in a previous paragraph, the present examination has not resulted in tracing any con- siderable amount of kaolinization on the Comstock ; while, had the heat of the lode been maintained ever since its for- mation at the expense of the feldspars, but little undecom- posed feldspar could now remain. In short, while it cannot be demonstrated that the heat of the Comstock is not due to the prevalence, at unknown depths and pressures, of a chemical change of unknown thermal relations, the writer has failed to find any proof that the heat of the Comstock is due to kaolinization. Of the origin of the heat of solfataras not very much is known ; yet, as they commonly occur either as an accom- paniment of volcanic activity, or in regions characterized by the strongest evidences of past volcanic activity, it is usual and seems rational to connect them as cause and effect, or as difierent effects of a common cause. There seems to be no special opportunities on the Comstock for an elucidation of the whole theory of vulcanism, but considerable grounds for connecting the heat there manifested with that chain of phenomena. That solfataric action as commonly understood, once existed on the Comstock is certain. That the time at which the lode was charged with ore is not immeasurably removed from the present, appears to be demonstrated by the trifling character of the erosion which has since taken place. The water entering the bottom of the New Yellow Jacket shaft in the winter of 1880-81, at a temperature of 170° F., was highly charged with hydrogen sulphide. The steam- boat Springs, only a few miles west of the Comstock, lie in a north and south line like the Comstock, close to the con- tact of ancient massive rocks and andesites. Some of them are boiling hot, are charged with solfataric gases, and are now depositing cinnabar and silica as at the time of Mr. Phillips' visit many years ago. Finally, there is reason to suppose that the hot waters of the Comstock come from great depths. No meteorological station exists at Virginia City, but the rainfall is so small that the country is a sage- brush desert, and the precipitation is insufficient to account for the water met with on the lode. The main influx of water, and especially of hot water, is from the west wall, and when encountered it is found under a head often of several hun- dred feet. Between the Comstock and the main range of the Sierra Nevada, the whole country is covered by massive rocks, principally andesites, with occasionally croppings of granite. The general structure of the country, and the ex- posures of sedimentary rocks in the mines, lead to the sup- position that the underlying strata dip eastward, and the in- ference is that the Comstock fissure tops water-ways leading from the crests of the great range. If the heat is conveyed to the lode by waters of great depths, the variations in tem- perature are readily explained. The distribution of the heated waters would be determined by the presence of cracks, fissures, and clamy-seams, and the uniformity of distribution of heat would further be disturbed, even at considerable distances from the surface, by the infiltration of surface water. One published observation, which is important in this connection, is that a large proportion of the rocks in the Virginia mines are dry. This is very true in the sense in which dry is used in mining, i. e., there are many places where water does not drip from the walls ; but the present examination has failed to reveal rocks which are not moist. Indeed the occurrence of really desiccated rock thousands of feet below the surface, near vr.st quantities of water, would disprove the generalization of the perviousnessof rocks,which is one of the best established in geology. Unless, therefore very strong proof to the contrary can be adduced, the con- duction of heat on the Comstock must be considered as tak- ing place in moist rock. •irne Lode. — The detailed structure of the upper portion of the lode was minutely and graphically described by Mr. King, and Mr. Church has followed the vein phenomena down to the 2,000-foot level. Below this point only one very small ore-body has been found, and the position of the. vein is marked only by barren quartz or by a mere clay seam. The old upper workings, and many of those visited .by Mr. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 195 Church, are now wholly inaccessible j and the present writer's task, so far as the mere description of the vein is concerned, is limited to showing what light is thrown on the recorded phenomena by the present investigation. The Comstock from the surface down is a remarkably regular fissure. This is shown by the close correspondence between the contours of the west wall and the lower levels with those of the sur- face near the lode, and when the presence of a large fault is taken into consideration, is also indicated by the closeness with which the east wall follows the west in many parts of the mines. A most important feature near the surface was the existence of the east fissures, or, so called, Virginia vein. This was referred by v. Eichthofen to its proper cause, a fracture through the hanging wall, caused by faulting ; and the present examination has shown how the edge of the east country came to assume a sharp wedge-like form, es- pecially favorably for a formation of a cross fracture. Above the junction of the primary and secondary fissures both were largely occupied with quartz, but while the quartz of the main fissure carried but little metal, concentrations of ore or bonanzas were plentifully distributed through the east fissure. Below the junction of the two the east as well as the west wall became regular in dip, and both have con- tinued so ever since. The secondary fissure and evidences of great fault extend from the lower portion of Gold Hill to the Sierra Nevada mine, as may be seen by reference to Mr. King's sections. Beyond these points the signs become less marked, and the dislocation has been distributed. The true vein is probably to be considered as limited to the contact between diabase and the underlying rocks. To the north of the Union shaft a considerable extent of this contact seems to be still unexplored. The fissure which has been followed on the Sierra Nevada upper levels appears to be wholly in diorites, though a small stringer of diabase also occurs here, and a similar one still further north, in the Utah mine, while the main contact between the diorite and the diabase swings off to the northeast in Union ground. So, too, to the south of the Overman there seem to be two fissures. While the main productive ground has been at or close to the dia- base contact, ore has been found at many other points in the district. The gold quartz mines of Cedar Hill stand in such relation to the Comstock as proves, almost beyond aquestion, that they owe their existence to the same dynamical and chemical phenomena, modified only by the lithological char- acter of their walls. The Occidental lode is evidently re- ferable to the same causes which produced the Comstock, and it is probable that the numerous occurrences of ore on vari- ous contacts in the district (though they have seldom proved remunerative) have the same origin. It is possible that this may even be the case with the east and west veins in horn- blende-andesite (at their croppings) which occur just north of Silver City.- If is the combination of dynamical and lithological conditions, and of the chemical relations de- pendent upon ,the latter, which, taken together, separate what is unanimously conceded to be the Comstock Lode from the other ore-bearing formations of the district. From the surface down, the filling of the vein has consisted es- sentially of more or less metalliferous quartz, with here and there a'little calcite, broken and decomposed rock, and clay. The presence of rock and clay is easily Accounted for when the method of formation of the vein is considered. The great horses near the top were masses broken from the east country, but innumerable smaller fragments must have form- ed at the same time, filling or more or less obstructing the fissure. It is certain that openings formed in this way would have been held open to a greater or less extent, at least within moderate distances below the surface, but it is also certain that a large amount of the rock would have been triturated. When decomposition set in, conversion of the finely-divided rock into clay would have followed. The de- composition of all the fragments, too, would be likely to be more energetic on the fissure than elsewhere, on account of the activity of circulation. It may not be superfluous to repeat here that clays by no means necessarily contain any considerable perceiitage of kaolin. The quartz was found to a very large extent in a highly crushed condition, resemb- ling nothing so much as ordinary commercial salt. Some doubt has been . thrown on the manner in which this fine division has been produced, though it has ordinarily been assumed to be the result of crushing. Samples mounted in balsam and examined under the microscope show that the material is composed of fractured crystalline quartz. The edges and points of the spiculseare sharp, and of course the crystalline character is perfectly evident in polarized light, while crystal faces as well as fractures are recognizable. Be- sides crushing, the only action which could have produced this state of division is some internal force such as tension produced by heat. That such is not the cause, however, is demonstrated by the fact that bunches of crystals of con- siderable size often occur, through each individual of which the same crack can be traced, showing a common and an external force. Small vugs must have formerly existed where these crystals occur. Taking into consideration the brittle character of this mineral it can readily be shown that there was force enough available during the dislocation of tlie country to effect its comminution. The eastern bodies are much more generally reduced to " sugar quartz, " as it is commonly called, than the masses which lie near the west wall. This is as would be expected. As has been seen,there is good reason for believing that the decomposition of the east country has not been effected by surface waters. Grant- ing this, it is almost necessary to suppose that at some depth or other there is a zone on the fissure which is closed water- tight ; for were it otherwise the waters ascending from great depths would rise along the open fissure. Even at the levels already reached, the vein is in pla&s only represented by a clay-seam, practically impervious to water, and as the liabi- lity to stoppage will certainly increase with the depth it is by no means an extravagant supposition that further down on some straight Or sinuous line the fissure is impenetrable by water from one end to the other. As the east country is penetrated throughout by capillary fissures, of which those parallel to, the lode probably possess great continuity, the heated waters entering the fissures below the stoppage would rise through the broken east country, but higher up would again tend towards the fissure as offering the path of least resistance. The ore-bearing solutions must have taken the same course as those which decomposed the east country rock, and the vein must therefore hare been filled through the east wall, even if the diabase is not regarded as the source of the metals. Had the vein been filled through- the fissure from great depths, " comb-structure " must have been visible in the ore on both walls, for while "comb-structure" may not be in- compatible with lateral secretion, it can hardly be maintained that minerals would crystallize out from ascending solutions otherwise than on the sides of the fissure and on included fragments. This structure is actually visible on the Com- stock, where narrow intervals between rock masses have in- duced such a method of deposition in miniature. On the other hand, a flow of mineralized solutions from the east country into the fissure would be exceedingly apt to inter- fere with the definiteness of the east wall, both mechanically and chemically. In point of fact, as is well known, although the east wall is well defined in some places, it is often ill de- fined and sometimes indistinguishable. At the intersection of the Sutro Tunnel with the Savage claim nothing could be more perfect than the east wall, but this also happens to be the only spot discovered where a considerable mass of diabase exists in an undecomposed condition. Unless, contrary to the conclusions to which this examination has led, a great mass of material has been eroded from the surface since the deposition of the ore, the ore-bearing solutions must have taken an upward course, since remunerative ore was com- paratively well distributed in the first thousand feet of the lode. If precipitation was the result of the decrease of tempera.ture and pressure, the tendency to precipitation must evidently have been greater near the surface. In this connection it is worthy of note that the character of the ores in portions of the croppings differed from that of those found at greater depths, being to a much larger extent galena, blende, and sulphur salte. Collectively, the various observations made, if they are correct and the inferences from them sound, throw consider- able light on the history of the lode. After the eruption of the diorite the first event of importance, so far as the vein is concerned, was the outburst of diabase, which involved a rupture and dislocation of the earlier diorite, leaving a smooth contact between the two rocks at an angle of about 43°. The contact was afterwards slightly opened to admit the younger diabase, or black dike. Eruptions of earlier 196 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. hornblende -andesite and of augite-andesite afterwards oc- curred, whi^h. probably produced fractures and dislocation in the eastern portion of the diabase, but have left no traces of action on the Comstook fissure. The country was sub- sequently so eroded as to reduce the surface of these four rocks to a gently sloping plane, with an inclination of a little more than two degrees to the west. After the commence- ment of the dry period (dry, that is to say, so far as this region was concerned) a great movement began, which may possibly have been a sinking of the hanging wall, but was more probably a rise of the foot wall. This dislocation in- volved an enormous friction, one result of which was a separ- ation of the foot wall and the hanging wall for a long dis- tance from the fissure into sheets parallel to it. A secondary effect of the same force was to form innumerable cracks in these sheets nearly perpendicular to their partings. The edge of the east country necessarily assumed the form of a wedge, and was broken completely through at a point a few hundred feet below th.at at which the primary fissure reached the surface. The total dislocation amounted to a little less than 3,000* feet, measured on the dip of the fissure ; but the movement was not effected continuously. After the secon- dary east fissure had been opened, large masses of ore-bearing quartz were deposited by alkaline solutions of carbonates, sulphides, and silica flowipg in from the east country. These were subsequently crushed by renewed movements of the walls. The nature of the ore-bearing solutions and of their contents no doubt varied from time to time. It is evident that currents following the same channels would gradually exhaust either the metalliferous minerals exposed to their action or the supply of the necessary alkaline solvent, and that a renewed movement would open up fresh material to attack. Pressure, too, if not temperature, may have varied from time to time. This necessary variation in the process of extraction sufficiently accounts for the great variety in the grade of the ore. Most of the ore-bodies which have hitherto been discovered are situated in the east fissure. From the very nature of the case this opening must have been exceedingly irregular. Above it lay only the shattered edge of the east country, approximately retaining its position only by gravity, while the mass of the east and west country were both in motion. The deposition of ore in this fissure was no doubt dependent upon the disposition of openings, and it appears to the writer a hopeless attempt to reduce to order, either a posteriori or a priori, the openings which may have been left in this fissure at different stages of the fault. In a very general way they would have been more likely to occur opposite ravines than opposite ridges. And in an equally_ general way such was the distribution of the ore- bodies in the east fissure. Two of the most important bo- nanzas have been found below the junction of the east fissure and the lode.' One of them was in the Crown, Point and Belcher, and the other was the famous body of the California and the Consolidated Virginia. The former appears to have been deposited in one of the ordinary lens-shaped openings which so frequently occur in all veins from a slight noncon- formity of the walls. The latter appears to have had a some- what different origin. A pDrtion of the foot wall seems to have given way at this point, carrying a large amount of rock from the hanging wall with it, and the ore has been deposited in the space thus formed. Of course, the space referred to was not actually empty but was filled with frag- ments, leaving considerable interstices between them. These fragments, however, after decomposition, acted as absorbents for the mineralized solutions, and became charged with argentiferous minerals. For the most part (with entire pro- priety) they have been mined and milled as ore. No warning can be had of approach from above to a body of this character, because the attendant phenomena will be found below the ore, as in this case ; and such bodies may occur at almost any point on a vein of which the hanging wall is like that of "the Comstook. Openings of a related character, however, may not improbably occur at the bottom of masses of broken and dislocated rock. An enormous volume of such material exists at the contact of the diabase * This is distributed both in east and west country. At and near the Sittro Tunnel section, any point on the hanging wall of the fis- sure was originally opposite a point about 1,600 feet higher up on the foot wall, the distance being rasaaurei on the dip. and the diorite all the way from the Gould & Curry to the Sierra Nevada; and nothing would be less surprising than the discovery of one or more ore-bodies at the lower portion of this mass. Perhaps the quickest way to reach them, if they exist, would be to sink immediately to the lower portion of the mass, where they are most likely to be found. Atten- dant upon the ore-bodies, and to the east of them, though perhaps somewhat below them, there will probably be areas of the east country more heavily charged with pyrite than usual, as has been the case opposite former bodies. The flooding of the Gold Hill mines during the past winter un- fortunately prevented an examination of their lower levels, and nothing can therefore be said as to their probabilities. The Comstock is likely to be an ore-bearing vein as long as it continues to be the contact between a large body of diabase and the older rocks. Should a point be reached at which the diabase contracts to a narrow dike between diorite walls, the prospects will be less hopeful ; but such a point, if it exists, may be many thousands of feet below the present workings. On the Occidental lode scarcely any work was done during the progress of this investigation, and no considerable examination could be made of it. Its croppings are laid down on the map mainly to exhibit their remarkable parallelism to the Comstock, and for the sake of consequent inferences as to the structure of the whole inter- vening country. That the Occidental lode dips to the east at an angle similar to that of the Comstock is certain, but whether the barren stringer cut by the Sutro Tunnel is really the Occiilental lode is perhaps not unquestionable, nor are there any means known to the writer of settling this point until it has been more extensively explored. Physical Investig'ations. — It is well known that Fox, Reich, and others made experiments of great interest upon the electrical phenomena of oj-e-bodies. Bernhard von Gotta earnestly recommended* that the experiments should be further pursued, as they seemed to him likely to lead to results of practical importance in the discovery of ore- bodies. If this recommendation has ever been followed out, no account of the investigation has been published. It was the writer's earnest desire to see the subject pursued, and Dr. Barus was invited to join the survey on account of his special fitness for this inquiry. All the plans and details of the electrical survey are due to Dr. Barus, the general scope of the work and the localities only being prescribed ; and a rSsume of his results is given below in his own words. Neither of the localities chosen were the best possible for the purpose. It was evidently necessary in such an inquiry to begin by the examination of the ore-bodies already exposed. At the date of the examination there was very little ore in sight on the Comstock. At the Eureka large bodies of ore were exposed, but being in an oxidized condi- tion would be likely to give weaker currents than sulphides of similar quantity and distribution. These two localities, however, were the only ones practically available, and at thesame time accessible through extensive workings. The results are nevertheless of great interest, and a considerable advance has been made towards a solution. It is one of tho plans for the future to repeat these experiments under more favorable conditions. Dr. Barus also gives a summary of the e.xperiments which he carried out on the subject of kaoli- nization, and which have been sufficiently alluded to in a foregoing paragraph. On the Electrical Activity of Ore-Bodies.— The discovery of local electrical currents in metalliferous veins is due to Fox. The remarkable results contained in his original paper (1830) suggested a series of subsequent ex- periments made by Fox himself and Henwood in England, von Strombeck and Reich in Germany. In all of these, however, the results contained refer principally to the cur- rents observed on joining with the prolonged te'rminals of a galvanometer two points lying at diflfercut distances apart on the same or different metalliferous veins. Special mention is due to a second paper of Reich (184-i), insomuch as the author assumes that lode currents are hydroelectric, that contiguous ore-bodies (or different kinds of ore in the same body) and the country rock have the same relation to each other as the metals and licjuid of an ordinary galvanic cell, and that therefore — this is his main point — currents must * Erzlagarstaetten, pai't I, p. 203. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 197 exist in the rock itself. It would follow herefrom that im- portant practical inferences might be drawn from a careful study of the latter, and it was with this conviction that Reich made a number of experiments. Unfortunately he did not pursue his argument into its full consequence. After this, further study of the subject seems to have been altogether abandoned ; at least a published account of an attempt to advance our knowledge in this direction, could not, without some pains be found. We can hardly suppose, however, that during this long interval of upwards of 37 years no experiment should have been made. The matter is rather to be ascribed to the necessary non-concordance of interpretations made from purely qualitative results, with facts. * ** * » * * »«- * The problem offered is not apparently a difficult one, and consists simply in determining the variation of earth-poten- tial at as many points within and in the vicinity of the ore- body as may be desirable; or, in other words, of tracing the equipotential surfaces in their contour and position relative to it. We are, however, able a priori, to systematize the method of research. In the first place, the hypothesis that lode-currents, if present, are due to hydroelectric action is quite a safe and natural one. It is known that a number of ores — especially sulphides — -possess metallic properties. The presence of two or more of these in the same ore-body is not an uncommon occurrence, and we are justified in anticipating electric action at their surfaces of contact. The currents thus generated have a very close analogy to those technically known as " local currents " in batteries, and which are due to impurities in the zinc. In the second place, it is obvious that if currents are met with in a region of ore deposits, such currents, insomuch as electrical action has been going on for an indefinite period of time, must be Constant, both in intensity and direction. The equipotentials corresporfding to this flow, will, therefore, have fixed and invariable positions relative to the ore body. Suppose, now, that from a point remote from the ore-body a line has been drawn towards it and prolonged beyond to about the same distance. It is not necessary for the present consideration that this line should actually pierce the de- posit ; only that certain of its parts are sufficiently near ore, and more so than its extreme points, and that it lies wholly within or upon the surface of the earth." Suppose, moreover, that the ores are so associated as to generate electrical cur- rents. If, then, we commence at one end of our line and determine the values of earth-potential at consecutive, approximately equidistant points, it is obvious, insomuch as we pass hy the seat of an electromotive force, or, in other words, through the field of sensible electrical action, that our progress from one extremity of the line to the other must be accompanied by a passage of the values of earth-potential corresponding, through a maximum or minimum, or both, or a number of such characteristic variations. In short, we may regard the earth-potential at any point as a fraction of the distance of this point from the assumed origin of our line. The assertion that this fraction will pass through a characteristic change of the kind specified is only another way of expressing that our line may be chosen so long, that in comparison with its extent, the field of sensible electrical action will be local, or its linear dinaensions in the direction in question small. Maxima in a general sense are, therefore, to be regarded as criteria, and as indicating the part of the line nearest to the electrically active ore-body. This is about the idea underlying the experiments made in the bonanza mines on the Comstock Lode, Nevada, and in those of the Richmond Company, Eureka District, Nevada. Practically, since we possess no means of measuring poten- tial absolutely, it will be sufficient to assume a value (zero) for one of the points of our series. The electromotive force between this and any of the other points is then the poten- tial of the latter. In making the actual measurements, the simple problem above enunciated became quite complicated, because the small lode-electromotive forces were distorted by a number of errors, which in the aggregate might possibly produce an effect in the same order. On the Comstock, where the mines at the time were, without exception, work- ing in very barren parts of the vein, no definite evidence of currents due to the lode itself was obtained. But even at Eureka, in spite of the enormous ore-bodies in sight, the range of variation of potential, corresponding to a distance of 2,000 feet, in the underground experiments very rarely reached 0.1 volt ; whereas usually the variation lay within a few hundredths volt. These limits, in a case where we have to do with such disturbances as action between termi- nals, polarization, earth currents (normal), bad insulation of circuit at any point, difference of potential between liquids in contact, incidental effects due to masses of metal — machines, tracks, turn-tables, water and air pipes, etc. — dis- tributed throughout the mine are to be considered as com- prehending a rather dangerously small interval. This matter is to be attributed to the earthy character of the Eureka ores. By way of example, the results obtained on the 600-foot level, west drift, Richmond mine, where the circumstances were particularly favorable, will be graphically given. The consecutive points tapped may be regarded as lying on a horizontal straight line, extending in an east-westerly direc- tion. In the following figure, distance .in feet is given as abscissa, the corresponmng value of earth -potential in volts. as ordinate. The line of points lay completely out of the ore-bodies, the latter occupying positions above and to the south of it, at a mean distance of several hundred feet, and extending from east to west about as far as is indicated by the heavy black line below Uie curve. This line of electrical survey passes from shale, probably free from ore, at its westernmost extremity, into limestone, encountering therein a region of electric action to be attributed to the ore-bodies ; but it does not pass through this region, local circumstances preventing. If we pass from west to east on the dotted pro- longation of the heavy black line just mentioned, we shall find ore all along our path and finally get into the immense deposits of the Eureka Consolidated Mining Company. Contact with the earth was secured at the pointe tapped by means of a closed bag of beefgut, containing a solution of zinc sulphate into which a strip of amalgamated zinc, form- ing the terminus of the metallic circuit, had been introduced. The bag during the experiments was placed in a suitable cylindrical hole drilled in the rock and filled with water. These terminals were exchanged twice for each observation. It is to be especially borne in mind that with the exception of the first, in shale, the holes were in solid rock, in lime- stone throughout— a matter which has been indicated by the dotted line above the curve. The results for earth-poten- tial, now to be given, are the means of two independent sets of observations, the second of which was made at an interval of 130 days after the first, and agreed fairly with it. A variety of methods of measurement were employed. The irregular progress of curve is not due to such errors as might be supposed to result from the accidental condition of the holes in the rock. It was proved by using suitable terminal (bladders, otherwise like the above), which were allowed merely to recZine against the walls of the drift, that the progress of the values of earth-potential in passing from hole to hole is continuous. It is safe to regard this curve as containing an unknown disturbing effect, superimposed on the larger electrical effect, due to the ore-body itself. In the experiments thus far made the variation of potential along a single line of electric survey only has been deter- mined. It is obvious, however, that in order to derive the full benefits from such a method a number of these surveys must be co-ordinated. We should endeavor by passing toward and from the ore-body, in all directions, actually to determine the contours and position of the equipotential surfaces. It is not improbable that the interpretation of these results would give us clews for the economical exploi- tation of the mine, comparable in value to those of a purely geological character. Both should go hand in hand. Un- der ground, this general method of research is not always feasible, as it presupposes the mine to have been already widely exploited. On the surface of the earth, however, it may to some extent be applied. We here endeavor to ob- tain the traces of the equipotential surface on the former. Suppose, for instance, that the potential at every point of a given part (several square miles) of the earth's surface were known. Then let this surface be projected on a fixed hori- zontal ("X Y") plane, and thef value of earth-potential cor- responding to each of the points be constructed as "Z." In this way_ we will obtain a new {potential] surface, coexten- sive horizontally with the first. Terrestrial electrical action 198 THE MINES, MINEES AND MINING INTERESTS OF THE UNITED STATES. , _/5_^ J^- _ ^ A l?, r' 8l_ , ■* [0 it '^" - - - -1 ^ - _«-_ -i)- i- ^ TV _ t_ „ j: > .^ _ ? 1)- Ai i _ -.^ A_i^ ^ jS^ 2- li - my-~--if-- - tF - mr "":"°"~"i°'j""i - - t ' _, ( ^ -4 - -J , -44 I -\ i _ . ^s, ~ £2-.--. ■ -_„_ = 3 _ = - b, ^ _ — : £5 2p : -_ 1 m ^ ^^ :~ . .. 1 -- ai — J. - - % t^ - X ■ rr ^^ _s. ± _.ri" : , _ s « I-- -.i_--^ ___. ;„„„ i„_lJl^ _„„-„3E_„ S: .=„„ — g _=. 3 aJ t5 / _&J f ~ ._ _ _ _ 12 ~l L- .- - _ y/ L l— 4-4 { Ic J ff ^_ — ■ 7 s :: — 3 4 _ .- - i _ ^ ° ZL. :life^ P^ tW ::~ : " ^ _ -r E "T 3C _j^_ __^i sif: 1 ! r~ * " ^^ -S- ~^ s 1 i m ;&_ / * £ S' i |~ J ::^3:=:: ■= *=>=*r' o I -[-- III { :: :2 : '" "^ ll *-- —1 -S- 1 -J;- 1 1 \ 1 ] T^ IgI J-| ; _ t . _ t , ~t_ - - $ — — ,e " — g_ 1 1 £:_ 1 -- 202 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. table growth. The acorn of the oak and the grass alike be- come the food of animals, and the gathered phosphates pass into their bones, which are nearly pure phosphate of lime. In like manner the phosphates from organic waste and decay find their way to the sea, and through the agency of marine vegetation become at last the bony skeleton of fishes. These are, in turn, the prey of carnivorous birds, whose exuvias form on tropical islands beds of phosphatic guano. A history not dissimilar will explain the origin of beds of coprolites and other deposits of mineral phosphates. But again, these plants or these animals may perish in the sea and be buried in its ooze. The phosphates which they have gathered are not lost, bnt become fixed in an insolu- ble form in the clayey matter ; and when in the revolutions of ages, these sea-muds, hardened to rook, become dry land, and crumble again to soil, the phosphates are there found ready for the wants of vegetation. Most of what I have said of phosphates applies equally to the salts of potash, which are not less necessary to the growing plant. From the operation of these laws it results that neither of these elements is found in large quantities in the ocean. This great receptacle of the drainage from the land contains still smaller quantities of iodine ; in fact, the traces of this element present in sea-water can scarcely be detected by our most delicate tests. Yet marine plants have the power of separating this iodine, and accumulating it in their tissues, so that the ashes of these plants are not only rich in phosphates and in potash-salts, but contain so much iodine that our supplies of this precious element are almost wholly derived from this source, and that the gathering and burning of sea-weed for the extraction of iodine is in some regions an important industry. When this marine vegetation decays, the iodine which it contains, appears, like the potash and phosphates, to pass into combinations with metals, earths, or earthy phosphates, which retain it in an insoluble state, and in certain cases yield it to percolating saline solu- tions, which thus give rise to springs rich in iodine. In all of these processes the action of organic life is direct and assimilative, but there are others in which its agency, although indirect, is not less important. I can hardly con- ceive of an accumulation of iron, copper, lead, silver, or gold, in the production of which animal or vegetable life has not either directly or indirectly been necessary, and I shall begin to explain my meaning by the case of iron. This, you are aware, is one of the most widely difiused elements in nature ; all soils, all plants contain it ; and it is a necessary element in our blood. Clays and loams contain, however, at best, two or three hundredths of the metal, but so mixed with other matters that we could never make it available for the wants of this iron age of ours. How does it happen that we also find it gathered together in great beds of ore, which furnish an abundant supply of the metal ? The chemist knows that the iron, as diffused in the rocks, exists chiefly in combination witli oxygen, with which it forms two prin- cipal compounds: the first, or protoxide, which is readily soluble in water impregnated with carbonic acid or other feeble acids, and the second, or peroxide, which is insoluble in the same liquids. I do not here speak of the magnetic oxide, which may be looked upon as a compound of the other two, neutral and indifferent to most natural chemical agencies. The combinations of the first oxide are either colorless or bluish or greenish in tint, while the peroxide is reddish-brown, and is the substance known as iron-rust. Ordinary brick-clays are bluish in color, and contain com- bined iron in the state of protoxide, but when burned in a kiln they become reddish, because this oxide absorbs from the air a further proportion of oxygen, and is converted in- to peroxide. But there are clays which are white when burned, and are much prized for this reason. Many of these were once ferruginous clays, which have lost their iron by a process everywhere going on around us. If we dig a ditch in a moist soil which is covered with turf or with decaying vegetation, we may observe that the stagnant water which collects at the bottom soon becomes coated with a shining, iridescent scum, which looks somewhat like oil, but is really a compound of peroxide of iron. The water as it oozes from the soil is colorless but has an inky taste from dissolved protoxide of iron. When exposed to the air, however, this absorbs oxygen, and peroxide is formed, which is no longer soluble, but separates as a film on the surface of the water, and finally sinks to the bottom as a reddish ochre, or, under somewhat different conditions, becomes aggregated as a mas- sive iron ore. A process identical in kind with this has been at work at the earth's surface ever since there were decaying organic matters, dissolving the iron from the porous rocks, clays, and sands, and gathering it together in beds of iron ore or iron ochre. It is not necessary that these rocks and soils should contain the iron in the state of protoxide, since these organic products (which are themselves dissolved in the water) are able to remove a portion of the oxygen from the insoluble peroxide, and convert it into the soluble pro-, toxide of iron, being themselves in part oxidized and con- verted into carbonic acid in the process. We find in rock formations of very different ages beds of sediments which have been deprived of iron by organic agencies, and near them will generally be found the ac- cumulated iron. Go into any coal region, and you will see evidences that this process was at work when the coal-beds were forming. The soil in which the coal-plants grew has been deprived of its iron, and when burned turns white, as do most of the slaty beds from the coal-rocks. It is this ancient soil which constitutes the so-called fire-clays, prized for making fire-bricks, which, from the absence of both iron and alkalies, are very infusible. Interstratified with these we often find, in the form of ironstone, the separated metal ; and thus from the same series of rocks may be obtained the fuel, the ore, and the fire-clay. From what I have said it will be understood that great deposits of iron ore generally occur in the shape of beds ; although waters holding the compounds of iron in solution have, in some cases, deposited them in fissures or openings in the rocks, thus forming true veins of ore, of which we shall speak further on. I wish now to insist upon the pro- perty which dead and decaying organic matters possess of reducing to protoxide, and rendering soluble, the insoluble peroxide of iron diffused through the rocks ; and reciprocally the power which this peroxide has of oxidizing and con- suming these same organic matters, which are thereby finally converted into carbonic acid and water. This last action, let me say in passing, is illustrated by the destructive action of rusting iron fastenings on moist wood, and the effect of iron-stains in impairing the strength of linen fibre. We see in the coal formation that the vegetable matter necessary for the production of the iron-ore beds was not wanting; but the question has been asked me, where are the evidences of the organic material which was required to produce the vast beds of iron ore found in the ancient crystalline rocks? I answer, that the organic matter was, in most cases, entirely consumed in producing these great results; and that it was the large proportion of iron diffused in the soils and waters of those early times, which not only rendered possible the accumulation of such great beds of ore, but oxidized and destroyed the organic matters which in later ages appear in coals, lignites, pyroscbists, and bitu- mens. Some of the carbon of these early times is, however, still preserved in the form of graphite, and it would be possible to calculate how much carbonaceous material was consumed in the formation of the great iron-ore beds of the older rocks, and to determine of how much coal or lignite they are the equivalents. In the course of ages, however, as a large proportion of the once diffused iron-oxide has become segregated in the form of beds of ore, and thus removed from the terrestrial cir- culation, the conditions have grown more favorable for the preservation of the carbonaceous products of vegetable life. The crystalline magnetic and specular oxides, which con- stitute a large proportion of the ores of this metal, are almost or altogether indifferent to the action of organic matter. When, however, these ores are reduced in our furnaces, and the resulting metal is exposed to the oxidizing action of a moist atmosphere, it is again converted into iron-rust, which is soluble in \vater holding organic matters, and may thus be made to enter once more into the terrestrial circulation. There is another form in which iron is frequently concen- trated in nature, that of sulphide, and most frequently as the bis\ilphide, known as iron-pyrites. This substance is found both in the oldest and newest rocks, and, like the oxide of iron, is even to-day forming in certain waters, and in beds of mud and silt, where it sometimes takes a beauti- fully crystalline shape. What are the conditions in which THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 203 the sulphide of iron is formed and deposited, instead of the oxide or carbonate of iron? Its production depends, like these on decaying organic matters. The sulphates of lime and magnesia, which abound in sea-water, and in many other natural waters, when exposed to the action of decaying plants or animals, out of contact of air, are like peroxide of iron, deoxidized, and are thereby converted into soluble sul- E hides ; from which, if carbonic acid be present, sulphuretted ydrogen gas is set free. Such soluble sulphides, or sul- phuretted hydrogen, are the reagents constantly employed in our laboratories to convert the soluble compounds of many of the common metals, such as iron, zinc, lead, copper, and silver, into sulphides, which are insoluble in water and in many acids, and are thus conveniently separated from a great many other bodies. Now, when in a water holding iron oxide, sulphates are also present, and the action of organic matter, deoxidizing the latter, furnishes the reagent necessary to convert the iron into a sulphide ; which in some conditions, not well understood, contains two equiv- alents of sulphur for one of iron, and constitutes iron-pyrites. I may here say that I have found that the unstable proto- sulphide, which would naturally be iirst formed, may, under the influence of a persalt of iron, lose one-half of its com- bined iron ; and that from this reaction a stable bisulphide results. This subject of the origin of iron-pyrites is still under investigation. The reducing action of organic matters upon soluble sulphates is well seen in the sulphuretted hy- drogen which is evolved from the stagnant sea-water in the hold of a ship, and which coats silver exposed to it with a black film of sulphide of silver, and for the same reason discolors white-lead paint. The presence of sulphur in the exhalations from some other decaying matters is well known, and in all these cases a soluble compound of iron will act as a disinfectant, partly by fixing the sulphur as an insoluble sulphide. Silver coins brought from the ancient wreck of a treasure-ship in the Spanish Main were found to be deeply incrusted with sulphide of silver, formed in the ocean's depths by the process just explained, which is one that must go on wherever organic matters and sea-water are present, and atmospheric oxygen excluded. The chemical history of iron is peculiar ; since it requires reducing matters t(5 bring it into solution, and since it may be precipitated alike by oxidation, and by farther reduc- tion, provided sulphates are present. The metals, copper, lead, and silver, on the contrary, form compounds more or less soluble in water, from which they are not precipitated by oxygen, but only by reducing agents, which may sepa- rate them in some cases in a metallic state, but more fre- quently as sulphides. The solubility of the salts and oxides of these metals in water is such that they are found in many mineral springs, in the waters that flow from certain mines, and in the ocean itself, the waters of which have been found to contain copper, silver, and lead. Why, then, do not these metals accumulate in the sea, as the salts of soda have done during long ages ? The direct agency of organic life comes again into play, precisely as in the case of phosphorus, iodine, and potash. Marine plants, which absorb these from the sea-water, take up at the same time ■the metals just named, traces of all of which are found in the ashes of siea-weeds. Copper, moreover, is met with in notable quantities in the blood of many marine molluscous animals, to which it may be as necessary as iron is to our own bodies. Indeed, the blood of man, and of the higher animals, appears never to be without traces of copper as well as of iron. In the open ocean the waters are constantly aerated, so that soluble sulphides are never formed, and the only way in which these dissolved metals can be removed and converted into sulphides is by fixing them in organisms, either vegetable or animal. These, by their decay in the mud of the bottom, or the lagoons of the shore, generate the sul- phides which fix their contained metals in an insoluble form, and thus remove them from the terrestrial cir- culation. It is not, however, in all cases necessary to invoke the direct action of organisms to separate from water the dis- solved metals. It often happens that the waters containing these, instead of finding their way to the ocean, flow into lakes or inclosed basins, as in the case of the drainage waters of an English copper mine, which have impregnated the turf of a neighboring bog to such an extent that its ashes have been found a profitable source of copper. Under certain conditions, not yet well understood, this metal is precipitated by organic matters in the metallic state, but if sulphates are present a sulphide is formed. Thus, in certain mesozoic schists in Bohemia, sulphide of copper is found incrusting the remains of fishes and in the sandstones of New Jersey we find it penetrating the stems of ancient trees. I have in my possession a portion of a small trunk, taken from the mud of a spring in Ontario, in which the yet undecayed wood of the centre is seen to be incrusted by hard metallic iron-pyrites. In like manner the old trees of the New Jersey sandstone became incrusted with copper- sulphide, which, as decay went on, in great part replaced the woody tissue. Similar deposits of sulphides of copper and of iron often took place in basins where the organic matter was present in such a condition or in such quantity as to be entirely decomposed, and to leave no trace of its form, unlike the examples just mentioned. In this way have been formed fahl-bands, and beds of pyrites and other ores. The fact that such deposits are associated with silver and with gold leads to the conclusion that these metals have obeyed the same laws as iron and copper. It is known that both persalts of iron and soluble sulphides have the power of rendering gold soluble, and its subsequent deposition in the metallic state is then easily understood. I have endeavored by a few illustrations to show you by what processes some of the more common metals are dis- solved and again separated from their solution in insoluble forms. It now remains to say something of the geological relations of ore deposits, which are naturally divided into two classes ; the first including those which occur in beds, and have been formed contemporaneously with the inclosed earthy sediments. Such are the beds of iron ores, which often hold imbedded shells and other organic remains, and the copper-bearing strata, already mentioned, in which the metal must have been deposited during the decay of the animal or plant which it incrusts or replaces. But there are other ore deposits, evidently of more recent formation than the rocky strata which inclose them, which have resulted from a process of infiltration, filling up fissures with the ore, or diffusing it irregularly through the rock. It is not always easy to distinguish between the two classes of deposits. Thus a fissure may in some cases be formed and filled between two sundered beds, from which may result a vein that may be mistaken for an interposed stra- tum. Again, a bed may be so porous that infiltrating waters may diffuse through it a metallic ore or a metal, in such a manner as to leave it doubtful whether the process was contemporaneous with the disposition .of the bed, or posterior to it. But I wish to speak of deposits which are evidently j)osterior, and occupy fissures in previously formed strata, constituting true veins. Whether produced by the great movements of the earth's crust, or by the local con- traction of the rocks (and both of these causes have in dif- ferent cases been in operation), such fissures sometimes extend to great lengths and depths ; their arrangement and dimensions depending very much on the texture of the rocks which have been subject to fracture. When a bone in our bodies is broken, nature goes to work to repair the fractured part, and gradually brings to it bony matter, which fills up the little interval, and at length makes the severed parts one again. So, when there are fractures in the earth's crust, the circulating waters deposit in the openings mineral matters, which unite the broken portions, and thus make whole again the shattered rocks. Vein-stones are thus formed, and are the work of nature's conservative surgery. Water, as we have seen, is a universal solvent, and the matters which it may bring and deposit in the fissures of the earth are very various. There is scarcely a spar or an ore to be met with in the stratified rocks that is not also found in some of these vein-stones, which are often very heteroge- neous in composition. In certain veins we find the elements of limestone or of granite, and these often include the gems, such as amethyst, topaz, garnet, hyacinth, emerald, and sapphire ; while others abound in native metals or in metal- lic oxides or sulphides. The nature of the materials thus deposited depends very much on conditions of temperature and of pressure, which affect the solvent power of the liquid, and still more upon the nature of the adjacent rocks and of the waters permeating them. The chemistry of mineral veins is very complicated. Many of these fissures penetrate 204 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. to a depth of thousands of feet of the earth's crust, and along the channels thus opened the ascending heated subterranean waters may receive in their course various contributions from the overlying strata. From these additions, and from the diminished solubility resulting from a decrease of pres- sure, deposits of different minerals are formed upon the walls, and the slow changes in composition are often repre- sented by successive layers of unlike substances. The power of these waters to dissolve and bring from the lower strata their contained metals and spars is probably due in great part to the alkaline carbonates and sulphides which these waters often hold in solution ; but the chemical history of the deposition of the ores of iron, lead, copper, silver, tin, and gold, which are found in these veins, demands a length- ened study, and would furnish not less beautiful examples of nat'ire's chemistry than those I have already laid before you. The process of filling veins has been going on from the earliest ages ; we know of some which were formed before the Cambrian rocks were deposited, while others are still forming, as the observations of Phillips have shown us in Nevada, where hot springs rise to the surface and deposit silica, with metallic ores, which incrusts the walls of the fissures. These thermal waters show that the agencies which in past times gave rise to the rich mineral deposits of our Western regions, are still at work there. Let us now consider the beneficent results of the process of vein-making. The precious metals, such as silver, are so sparsely distributed, that even the beds rich in the products of decaying sea-weed, which we have supposed to be de- posited from the ocean, would contain too little silver to be profitably extracted. But in the course of ages these sedi- ments, deeply buried, are lixiviated by permeating solutions, which dissolve the silver difiused through a vast mass of rock, and subsequently deposit it in some fissure, it may be in strata far above, as a rich silver ore. This is nature's process of concentration. We, learn from the history which we have just sketched the important conclusion, that amid all the changes of the face of the globe the economy of nature has remained the same. We are apt, in explaining ,the appearances of the earth's crust, to refer the formation of ore-beds and veins to some distant and remote period, when conditions very unlike the present prevailed, when great convulsions took place, and mysterious forces were at work. Yet the same chemical and physical laws are now, as then, in operation ; in one part dissolving the iron from the sediments and forming ore-beds, in another separating the rarer metals from the ocean's waters ; while in still other regions the consolidated and buried sediments are permeated by heated waters, to which they give up their metallic matters, to be subsequently deposited in veins. These forces are always in operation, rearranging the chaotic admixture of elements which results from the constant change and decay around us. The laws which the first great cause imposed upon this material universe on the first day are still irresistibly at work fash- ioning its present order. One great design and purpose is seen to bind in necessary harmony the operations of the mineral with those of the vegetable and animal worlds, and to make all of these contribute to that terrestrial circulation which maintains the life of our mother earth. While the phenomena of the material world have been looked upon as chemical and physical, it has been customary to speak of those of the organic world as vital. The ten- dency of modern investigation is, however, to regard the processes of animal and vegetable growth as themselves purely chemical and physical. That this is to a great extent 'true must be admitted, though I am not prepared to concede that we have in chemical and physical processes the whole secret of organic life. Still we are, in many respects, approximating the phenomena of the organic world to those of the mineral kingdom ; and we at the same time learn that these so far interact and depend upon each other that we begin to see a certain truth underlying the notion of those old philosophers who extended to the mineral world the notion of a vital force; which led them to speak of the earth as a great living organism, and to look upon the various changes in its air, its waters, and its rocky depths, as processes belonging to the life of our planet. Since this lecture was delivered, I have seen the results of the researches of Sonstadt on the iodine in sea-water, which appear in the Chemical News for April 26, May 17, and May 24, 1871. According to him this element exists in sea-water, under ordinary conditions, as iodide of calcium, to the amount of about one part of the iodate in 250,000 parts of the water. This compound, by decaying organic matter (and by most other reducing agents), is changed to iodide, from which, apparently by the action of carbonic acid, iodine is set free, and may be separated by agitating the water with bisulphide of carbon. The iodine thus lib- erated from sea-water by the action of dead organic matters, however, slowly decomposes water in presence of carbonate of calcium, and is reconverted into iodate, the oxygen of the air probably intervening to complete the oxidation, since, according to Sonstadt, iodides are readily converted into iodates under these conditions. He finds that the in- solubility of the iodides of silver and of copper is so great that by the use of salts of these metals iodine may be sepa- rated from sea-water without concentration, provided the iodate of calcium has first been reduced to iodide. By this property of iodine and its compounds to oxidize and bo oxidized in turn, Sonstadt supposes them to perform the important function of consuming the products of organic decay, and so maintaining the salubrity of the ocean's waters. Their action would thus be very similar to that of the oxides of iron, as explained in the present lecture. Still more recently the same chemist has announced that the sea-water of the British coasts contains in solution be- sides silver an appreciable quantity of gold, estimated by him at about one grain to a ton of water. This is separated by the addition of chloride of barium, apparently as an aurate of baryta adhering to the precipitated sulphate, which yields by assay an alloy of about six parts of gold to four of copper. Other methods have been devised by him for separating these metals from their solution in sea-water. The agent which keeps the gold of the sea in a soluble and oxidized condition is, according to Sonstadt, the iodine lib- erated by the action already described. The views maintained by Lieber, Wurtz, Genth, and Sel- wyn, as to the solution and redeposition of gold in modern alluvial deposits seem to be well grounded, and we are led to the conclusion that the circulation of this metal in nature is as easily effected as that of iron or of copper. The transfer of certain other elements, such as titanium, chrome, and tin, or at least their accumulation in concentrated forms, appears, on the contrary, to require conditions which are no longer operative at the surface of the earth. It should here be noticed that Prof. Henry Wurtz, of New York, in a paper read before the American Association for the Advancement of Science in 1868, expressed the opinion that the ocean-waters contained gold, and urged experi- ments for its detection. According to his calculations the total amount of gold hitherto extracted from the earth, and estimated at two thousand million dollars, would give only one dollar for two hundred and eighty million tons of sea- water, while from the experiments of Sonstadt it would appear that the same quantity of gold is actually contained in twenty five tons of water. —A paper bj T. SUrry Hunt, LL.D., F. R S\, Trar.faciions AmericaK Institute of Mimng Engineers. THE ORES OF IRON ; THEIR GEOGRAPHICAL DISTRIBUTION. MENTION has been made by several observers that iron has been found in certain localities as native or pure iron. It is probable, however that iron is never found of terrestrial origin in a pure state, and that in the instances referred to, the material was of meteoric derivation. In meteoric masses, nearly pure iron 13 not uncommon, but the iroa of meteorites is usually associated with certain proportions of nickel, cobalt and other elements, and sometimes considerable amounts of oc- cluded hydrogen. Magnetite or the magnetic oxide {Fefi, THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 205 +FeO=Fe30^), is the richest of all the known ores of iron, and when perfectly pure contains 72.41 per cent, of iron, and 27.59 of oxygen, though commercially it rarely exceeds 55 to 60 per cent, of iron. It is found crystallized in octa- hedra, crystalline, massive, or as sand ; color black ; is mag- netic, and some varieties possess polarity — the loadstone. The great deposits are in the Russian Altai and Ural Moun- tains, Sweden, Norway, and Lapland, and in North America. In America it is found solely in the metamorphic crystalline rocks — Archaean — the great deposits being in the Canadian highlands and the Alleghany Mountains from the St. Law- rence to Georgia. Besides these, other deposits of less present importance are found in Arkansas and at various points in the Archaean rocks of the Rocky Mountains. Certain deposits in all of these great iron regions are found to be contaminated by titanium in the form of the mineral men- accanite (Ti.Fe)j,03. In the Eastern United States, Canada, Tasmania, New Zealand, Japan, etc., a sand of magnetic oxide, often titaniferous, is found as the result of the destruc- tion of large masses by wave action, in all of which places it has been used in the manufacture of iron. In Sussex County, New Jersey, there is found a unique deposit of mag- netite — Franklinite — in which part of the protoxide of iron is replaced by protoxides of zinc and manganese, and part of the peroxide by peroxide of manganese. This mineral when pure contains about 65 per cent, of peroxide of iron, 12 per cent, of manganese oxide, and 20 per cent, of zinc oxide. It is a doubly valuable ore, first, for the production of zinc white, and secondly in the production of spiegeleisen. hematite, red hematite, specular iron, etc., (Fe^Oj). When pure it contains 70 per cent, of iron and 30 per cent, of oxy- gen, though as used by the iron master it rarely surpasses 60 to 66 per cent, of metallic iron. It is distinguishable from the other ores of iron by its red streak ; is found nearly black to brick -red in color, crystallized, crystalline, massive, .fibrous, oolitic, botryoidal, ochrey, etc. The great deposits of this ore are crystallized on the island of Elba ; massive and botryoidal in Lancashire, England, and certain places in Western Europe ; massive and crystalline. Lake Superior, Pilot Knob, and Iron Mountain, etc., Missouri ; oolitic in the stratified ore of the Clinton group of the Lower Silurian in the Eastern United States, the " dyestone " or " fossil ore." Limonite, brown hematite, brown iron ore, hydrated per- oxide, bog ore, pipe ore, etc., (2Fe203,3IIO), contains when pure 59.9 per cent, of iron and 14.4 per cent, of water. Under this ore may practically also be included the other per- oxides of different degrees of hydration, Gothite and Jfan- throsiderite, or yellow iron ore, which sometimes largely compose masses of limonite. Limonite is found nearly black in color to brown, yellowish-brown, or yellow, and is distinguished by its yellowish-brown streak. It occurs mas- sive, botryoidal, stalactitic, granular (bog ore), ochreous, etc. In richness it varies greatly, but the ore as used rarely contains more than 45 to 50 per cent, of iron. Of all the ores of iron it is one of the most widely distributed. Usually it is found as surface deposits in basins or depressions, which are of very uncertain extent, and while there is scarcely a country or state that does not contain some de- posits, as an ore, though valuable, it is of inferior impor- tance. Sometimes it is found as the result of the oxidation of the outcrops of mineral veins containing iron {gossans) of the stratified carbonates or crystalline ores, and as de- posits on the surface or in cavities, pockets, or fissures in the rocks from ferruginous springs or waters. In Sweden large quantities are found in the bottom of the lakes as grains of ml sizes up to that of peas or beans, and is known as lake ore. Carbonates of the protoxide (FeO,COj) the different forms of which are: (a) Spathic iron ore siderite or chalyhite, the crystallized carbonate of iron, when pure containing 48.22 per cent, of iron, crystallizing in rhombohedra. Though a very valuable ore of iron, it is of little importance in the United States, and is found in but small deposits in Roxbury, Conn., and Southern Vermont. In Carinthia and West- phalia in Europe, the spathic ore is of great importance and is the foundation of large industries. (6) The clay ironstone or argillaceous carbonate of iron, is the great ore of the coal measures, but is, however, found in considerable quantities in the cretaceous formation of both the East and West United States. It occurs as stratified deposits, though more commonlylas. rounded, masses, kidneys or nodules, otaU. sizes, which are sometimes, however, so closely compacted as to form regular strata. In richness this clay ironstone contains commonly from 33 to 40 per cent, of iron. It has been the principal ore used in Central England and Wales, and is also found in several of the European coal basins. While the carbonates of the coal measures are of considerable importance in the United States, they are greatly overshadowed in value by the richer and more abun- dant crystalline ore. Clay ironstone is also found granular and oolitic, as the oolitic ores of the Jurassic (Lias) in Ger- many and France, which are also of the same age and gen- eral character as the celebrated ore of the Cleveland Hills of Northeast England, where they are the foundation of an immense iron industry. When the argillaceous carbonate is associated with bituminous matter it forms (c.) hlachhand or bituminous clay ironstone, which is a bituminous shale impregnated with sufficient iron to render it valuable as an ore. Usually it contains frona 25 to 50 per cent, of iron. It is the ore of the famous blackband iron district of Scotland, and is found to some extent also in Central England and Wales, also in some of the German coal basins. The United States contains deposits of little importance in the Triassic coal basin of North Carolina, in the metamorphic coal measures of Pottsville, Pa., and in the bituminous coal basin of West Virginia. The only deposits of value now known, however, are found in the coal measures of Eastern Ohio. Ores are rarely used which contain lees than 25 per cent, of iron, and they may be roughly divided according to their richness into poor ores, those between 25 and 35 per cent. ; ordinary or average ores, between 35 and 50 per cent. ; and rich ores, those containing more than 50 per cent, of metallic iron. To show the distribution of the ores of iron, and the locations of the great iron producing regions of the world, the chief iron-making countries of the world may be passed rapidly and briefly in review. England. — It requires no argument to show that Eng- land's position, as one of the highest civilized countries, arises mainly from the extent of her manufactures and her commercial intercourse with the rest of the world, which are due almost exclusively to the great magnitude of her iron industries. Thus in 1871, of the total of 13,315,500 tons of pig iron made in the world, England produced about one-half, or 6,500,000 tons. Her facilities for iron manufac- tures are almost unsurpassed, for all the materials necessary, the iron ore, coal, etc., may be drawn from very limited areas, and often from the same mine, thus being in marked contrast with the condition in the United States where such long and expensive transportation is necessary. The dis- tricts of manufacture are five in number: the Scotch, Cleve- land, West Coast, Central England, and South Wales. 1st. The Scotch region is limited by the extent of the Scotch coal measures, and is included in the shires of Fife, Lanark, Linlithgow, Stirling, and Ayr, extending across from the Frith of Forth to the Frith of Clyde. The ores are the blackband and clay ironstone of the coal measures, which are found in beds of limited extent and thickness, varying from a few inches to a couple of feet, but on an average only about ten inches. The amount of ore mined in 1872 was 3,270,000 tons. The ftiel employed is the dry open-burning coal of the Scotch fields used raw in the fur- nace, similar in character to our own block coals of Ohio and Indiana. The pig iron produced is mainly for foundry use, and though not of first quality, has a reputation over all parts of the world for its exceeding uniformity and adapta- bility for foundry purposes, and is known by the familiar names of "Coltness," Gartsherrie," etc. 2d. The Cleveland district, though the newest, ranks first in production and in the application of skill and boldness in the manufacture. It is situated on the northeast coast of England, around Middlesboro', in Durham, and the North Riding of Yorkshire. The ore used is an oolitic clay iron- stone from the Jurassic formation, occurring in immense beds 12 to 17 feet in thickness, and containing about 35 per cent, of iron, with commonly 1 per cent, of phosphoric acid. The production of ore in 1872 was 5,539,000 tons. During the last few years, however, some ores have been imported for mixtures from Spain and Sweden. The fuel used is coke from the Durham coal-field, the coal of which ap- proaches more nearly our typical coking coals, than that. of the other English coal areas. 206 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 3d. The West Coast district is one of the newest centres; but as the repository of the only ore used in Great Britain in making iron for the Bessemer steel process, is of great importance. It is located along the west coast of Cumber- land and Lancashire, at Barrow, Workington, etc. The ore is a very pure red hematite found in pockets in the moun- tain limestone, and containing about 50 per cent, of iron. The ore is shipped largely to other parts of the country, Wales, Central England, etc., and in 1872 there were raised 1,769,000 tons.* The fuel employed is coke from the coals of the Cumberland coal-field, but principally from the Dur- ham coal measures. The iron produced is specially adapted, from its purity, for making Bessemer steel, and large quan- tities are transported to Germany, France, and the United States for that purpose. 4th. The Central region of Staffordshire, Derbyshire, etc., including the famous towns of Birmingham, Derby, and Sheffield, though one of the oldest in the country, is being overshadowed by the newer districts. The ores worked for so many years are now becoming less abundant, and more difficult to mine. They are the argillaceous carbonate, and some black band of the coal measures, besides which brown hematites are imported from the adjoining country. Forest of Dean, etc. The fuel is the dry bituminous coal of the underlying coal formation, which is used both in the raw state and as coke. 5th. The South Wales region is embraced in the shires of Glanmorgan, Monmouth, and Brecknock, and is limited by the area of the Welsh coal-fields. The ores are similar in character to those of Staffordshire, besides which considerable quantities are brought from Cumberland, Ireland, Spain, etc. The fuel is, the dry bituminous coal and anthracite of the region, and the iron produced is used chiefly for forge and mill purposes. Sweden. — ^The ores of Sweden are specular, some brown hematite and bog ore, but principally magnetite. The char- acter and geological position of the latter is peculiarly similar to that of the magnetites of the Eastern United States and Canada, though they are generally more free from sul- phur and phosphorus. While abundantly provided with iron ores, and producing a large amount of iron celebrated for its excellent qualities, Sweden has made but little ad- vance in her production, because of the absence of ready means of communication, but more especially from the want of an abundant supply of fuel, the only fuel being charcoal, amd the quantity of this is fast becoming reduced, though its production is controlled by law. The principal deposits of magnetite in Sweden are in the southern part, around Lake Wenern, and in' the counties of Wermland, Westman- land, and Dalecarlia. The mines of Dannemora, north of Upsala, also produce large quantities of iron, which is made into the celebrated brand of that name. There are also lar^e deposits of magnetite in North Sweden and Lapland, and in Arendal in Norway. The chief product is wrought iron made from the pig iron almost exclusively in low fires, holding the first rank in all countries of Europe. Consider- able amounts of cast iron and steel are also produced, and some quantities of ore are now being sent to the coal-fields of England and Northern Europe. Russia. — Russia contains immense and almost inex- haustible deposits of iron ore, principally magnetite, with some hematite. While producing iron of the highest grades, her advance in the manufacture is retarded, like Sweden, by the want of mineral fuel ; and though in some of the govern- ments coal is known to exist, charcoal is the only mel em- ployed, its consumption reaching 1,500,000 tons per year, and large areas being laid waste to furnish the supply. The scantiness of the population, the vast areas possessing limited and precarious means of communication, and the great distance from the works to the markets are also great ob- stacles to its progression. The principal iron regions are: 1st. Those of the Ural and Altai Mountains, which are the great mineral storehouses of Russia. Large and valuable * Quite large amounts of ore are imported from Ireland, which Is also sent, to a considerable extent, into Staffordshire and Wales. The ore is a pisolitic limonite, particularly free from sulphur and phosphorus, but remarkable for its large percentage of alumina, being, in fact, almost a bcmmte. It has been found to add much to the case of smelting the pure hematites of the Cumberland region, and to mix well with the other English ores. deposits are found in the Altai Mountains, around Nert- sohinsk, in Eastern Siberia, and Barnaul, in Western Siberia. The great deposits and works are, however, situated in the Urals, in the government of Perm, and the magnetic depo- sits of the mountains of Blagodat, 150 versts north of Jekaterinburg, of Nijni Tajilsk, etc., are celebrated for their magnitude and richness. Beside the magnetic ores, con- siderable quantities of red hematite are found near Barnaul, Jekaterinburg, 'and the South Urals. The vast establish- ments of Prince Demidoff at Perm, Nijni Tajilsk, and Jekaterinburg have a world-wide reputation. 2d. The region of Central Russia around Moscow, Nijni Novgorod, etc., in the governments of Nijni Novgorod Vla- dimir, Kaluga, Penza, Orel, and Tambov, in which the principal ore, the red hematite, is found in great abundance, containing usually from 45 to 48 per cent, of iron, together with carbonate ores. In addition to these two principal regions, considerable iron is produced in Russian Poland from carbonates and bog ores, and Finland is particularly rich in magnetites, though producing but litle iron. In- formation is limited concerning the magnitude of the Russian iron industry, but it is estimated to be between 200,000 and 300,000 tons per year. France. — France is quite abundantly supplied with iron ores, but the manufactures have been much retarded from a want of a good supply of coal. A large part of the iron has been made from charcoal, but the introduction of a better system of communication has enabled the ironmaster to more thoroughly utilize the coals of the few and scattered coal-basins, which are neither of very superior quality, nor of great extent, and to very largely increase her production. Very considerable amounts of coal are also annually im- ported from England. The principal ore of France is the oolitic ore (similar to the Cleveland ore of England), which occurs scattered on the surface and in the rocks of the Ju- rassic formation, extending across the country from the Pas de Calais, on the northwest, to the Jury Mountains on the southeast. There are also found very abundant deposits of limonite in the tertiary and alluvium ; some spathic ores, red hematites, and a little magnetite, besides which quite con- siderable quantities of magnetite and hematite are imported from Algiers, Elba, Sardina, and Spain, especially into the southern regions. The iron districts of France have been divided into nine groups, viz. : 1st. Group of the Southeast, or of the Rhone and Saone, including now the principal district of France, and the celebrated works of Le Creusot, Terrenoire, St. Etienne, of Petin, Gaudet & Co., at St. Cham- ond, etc. The ores are mainly oolitic and brown hematite, and imported ores from the Mediterranean, the fuel being coke from the coals of the basins of the Loire, Gard, etc. The production in 1867 was 28.8 per cent, of 1,380,422 tons, the total production of the country. 2d. The Compte district, situated in the east, along the Jura and Franche Compt6, employing charcoal with oolitic and brown hematite ores, and in 1867 producing 5.6 per cent, of the production of the country. 3d. Region of the Alps, in the southeast, in Is§re and Savoy, using charcoal and principallv spathic carbonates, and in 1867 producing only 0.4 percent, of the total produc- tion. 4th. The Champagne district, on the northern border, in Ardennes, Haute Marne, and Meuse, in which the fuel is charcoal and coke, from the coal-basin of du Nord and Pas de Calais on the west, and the bordei-s of the Belgian coal- field on the east, with oolitic and hydrated peroxide ores, the production in 1867 being 12.8 per cent, of the national production. 5th. Group of the North, in Pas de Calais, basins of the E3cant and Sambre, employing coke from the coals of the underlying coal measures as fuel, and granular limonites, etc., and producing in 1867 13.6 per cent, of the total pro- duction. 6th. R.egion of the Ceraifre, comprising the manufacture in the provinces of Berry, Bourbonnais, Nivernais, etc., using charcoal mainly, and some coke, from the Allier basin, and alluvial with some little Spanish and Mediterranean ores The proportion of the production for 1867 was 10.4 per cent. 7th. Region of the Northwest, north of the Loire and west of the Seine, in Bretagne, etc., using charcoal and a little coke, with limonites, little magnetite, and some ores THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 207 from Spain, prodncing in 1887 1.6 per cent, of the iron made in France. 8th. Southeast group, or group of the Pyrenees, in which the fuel ia charcoal, with some coke, and the ores hematite, spathic, limonite, oolitic carbonate, etc., with a production of 5.6 per cent, in 1867. 9th. Region of the Moselle and Meurthe, in the northeast, where the fuel is from the Prussian coal-hasin of the Saar, and the ores oolitic carbonate from the Lias, with a produc- tion in 1867 of 20.8 per cent. In 1870, by the annexation of Alsace and Lorraine to Prussia, twenty-five establish- ments out of thirty-seven were taken from this group, which represented 75 per cent, of the production of this region. Belgiuin. — Belgium, though only about the area of the State of Maryland, by the devel6pment of the comparative- ly small coal-basins of LiSge and Charleroi, and of the abundant iron ores, produced in 1871 nearly 900,000 tons of iron, which ranks her as fifth among the iron-producing countries of the world. The ore most important in her manufacture is the minette, psammite, or oolitic limonite from the Grand Duchy of Luxembourg. This is a hydrated per- oxide of iron, the result of the oxidation of oolitic carbon- ate of the Lias, the equivalent of the Cleveland ironstone of England. Formerly the red hematites occurring in the limestone at the base of the coal measures, in the eastern provinces of Namur and Li§ge, were the main source of supply, but they became insufficient for the d'?mand, and have been supplemented by the minette, which in many cases has to be transported a hundred miles or more. Be- sides these ores there are found considerable quantities of brown hematite in the eastern provinces, and some bog ore mainly from the northeast low countries. The iron manu- facture is conducted chiefly around the cities of LiSge and Charleroi, the fuel employed being coke made from the coal of the adjoining coal-basins. The usual inferior character of the Belgian and French coals, compared with the Eng- lish, have neccessitated their most careful preparation, to enable them to be successfully used in the blast-furnace, and hence to these countries we are indebted for the develop- ment of and the best forms of coal-washing machines and coking apparatus, now in use. Austria. — Austria, though one of the largest states, and containing some of the most valuable ores in Europe, ranks but sixth among the iron-producing countries, and in 1871 the make of pig iron, 450,000 tons, wa.s but little more than half that of the small kingdom of Belgium. The cause of this is mainly to be found in the wide separation of the great ore deposits from the coal-fields, and the want of cheap and ready means of transportation. In 1870 84 per cent, of iron made was produced with charcoal, and 16 per cent, with mineral fuel. The only valuable coal-fields are found along the northwestern border of the empire, in Bohemia and Silesia, the coals of which are much inferior, as smelting fuels, to the coals of France and Belgium. Brown coal, or lignite, and peat, are found in considerable abundance in many places, especially in Hungary and Bohemia, and when dried, or charred, they have been used to a small extent for smelting purposes, though they are more commonly em- ployed in puddling and working iron. The most important iron ore deposits are found in the southeast, in Styria and Carinthia (the Noricum of the Romans), where charcoal is the only fuel, and as the manufacture has been pursued in these countries for several centuries, the production has been limited on account of scarcity of fuel. More perfect communication, however, is stimulating the industry, and permitting the transfer of mineral fliel from the northern coal-fields to these southern deposits. The ores are principally rich and pure spathic carbonates, the iron from which has long been famous for its excellent quality. The spathic ore deposits of the Erzberg and Eisenerz, in Styria, are cele- brated for their great magnitude, being found in beds from 200 to 600 feet in thickness, while in Carinttiia are similar deposits of less extent. The ore raised in Carinthia and Styria in 1858 was 15 and 20 per cent, of the total raised in the empire, and in 1870 the make of pig iron was respect- ively 11 and 37 per cent, of that made in the empire, ex- clusive of Hungary. Next in importance to the manu- facture in Styria and Carinthia is that of Bohemia, Moravia, and Silesia. The principal ores of Bohemia are red hematite from the bordering mountains, and brown hematites, with clay ironstone, of the coal measures. In Moravia and Silesia the ores are mainly clay ironstone from the Carpathian Mountains. The proportion of ore raised in these countries was, in 1858, in the above order : 19.36, 12.43, and 2.09 per cent, of that raised in the empire, and the production of pig iron in 1870 was 28,11, and 2 per cent, of that made in the empire, excluding Hungary. In Hungary the ores are chiefly spathic carbonates, with some magnetites, limonites, etc. In 1858 Hungary raised 18 per cent, of all the ores produced in the empire, and in 1870 yielded about 133,000 tons of pig iron, while Carinthia and Styria produced 178,- 000, Bohemia 130,000, and Moravia and Silesia 33,000 tons. The German Empire. — In the Empire of Germany the principal iron production is confined to the Prussian states, in which there are two great iron-making sections, viz., in the east, in Upper Silesia, and in the west in the region bordering the Rhine, or the Rhine provinces; besides a manufacture of less importance in the central and northern parts. Saxony and Hanover. These sections also contain all the coal-fields of any importance in the Empire, as those of Silesia, of the basin of the Saar, on the Upper Rhine.and of the basin of the Ruhr or Westphalia, and the adjoining basins of Aachen in Belgium, in the Lower Rhine, with the smaller and less important one of Saxony. The ores of the Prussian states are in the order of their importance as fol- lows : The brown hematites, which furnish 40 per cent, of the ore used, are very widely distributed, and probably the most valuable of all the ores. The spathic or sparry car- bonate forms nearly 20 per cent, of the ore used, and is mainly obtained in the Rhine provinces, especially in the Bonn region, where are the celebrated deposits of Musen, Siegen, etc., which furnish large quantities of Bessemer iron, and Spiegel eisen, the latter of which is exported to all parts of Europe and America for steel purposes. The red hema- tite deposits yielding 19 per cent, of the total ore produced are found chiefly in the Rhine provinces west of Bonn, where it is a continuation of the similar deposits of Belgium in the carboniferous limestone. Black band ore forms 10 per cent, of the ore used, and is exclusively obtained in the coal-fields of Westphalia. Limonites, — " bean ore, " — ^to the extent of 7 per cent, of the total ores, is used in the Clausthal or Hanoverian region. Clay iron.stone, including the oolitic carbonate of the Belgian frontier, is used to the extent Of 1.75 per cent., and is found mainly in the Silesian region and the Rhine provinces. Bog ore is found in con- siderable quantities in the plains of Northern Germany,and to the extent of 1.75 per cent., is mined and used in Silesia and Northern Germany. The manufacturing districts are divided by the Prussian authorities as follows : The Silesian region around Breslau, Oppeln, etc., where the Silesian coal-field and the brown hematites, with clay ironstone and bog ores, produced in 1870 24 per cent, of the pig iron made in the Prussian states. The Halle region of Saxony, at Magdeburg, etc., of little importance, producing only 0.12 per cent, of the total pro- duction of pig iron. The districts of the HMne, which are divided into : 1st, the region of Dortmond, the most impor- tant iron region, producing 36.76 per cent, of the iron made, containing part of the Westphalian coal-field, and using black band, brown hematite, spathic, and red hematite ores. In this division are included the celebrated works of Krupp at Essen — the largest iron establishment in the world — and a considerable manufacture at Dusseldorf, Osnabruck, etc. 2d. The Bonn region, which ranks next in importance, pro- ducing in 1870 33.67 per cent, of the pig iron made, and including portions of the -Westphalian and Rhine provinces around Bonn. Fuel is accessible from the basin of the Ruhr on the north, and Aachen on the west, besides the celebrated lignite beds of the Rhine. The most important ore is the spathic carbonate, of Devonian age, which is found in the famous district of Siegen, where the most noticeable deposit is that of the Stahlberg or Steel Mountain, near Miisen, besides which large quantities of brown hematite and red hematite are also employed. The Clausthal region of Han- over, etc., using mainly limonite ores, is of smaller impor- tance, producing in 1870 only 5.22 per cent, of the pig uron made in the Prussian states. The annexation of Alsace and Lorraine, after the war of 1870, has transferred to Prussia 25 blast-fiirnaces, producing in 1870 205,679 tons of pig iron. The principal ore used is the oOlitic, minette of the Jurassic, 208 THE MINES, MINEES AKD MINING INTERESTS OF THE UNITED STATES. the continuation of the same formation producing the valuable ores of Northeastern France, and Southeastern Belgium already mentioned. The fuel is all obtained from the basin of the Saar near Osnabruck, already alluded to. The other states of the Zollverein besides the Prussian— Wurtemberg, Bavaria, and the coal-basins of Zwickau in Saxony— hold but an unimportant position in the iron manufacture. Spain. — We have but little accurate information concern- ing the mineral resources of Spain, but we know that she possesses many large and valuable deposits of iron ore with coal-basins of no mean extent. While, during the last half century, the iron manufacture in the other European states has advanced to a most wonderful extent, from inherent national conservatism, political uncertainty, etc., the iron industry of Spain has been far behind them, and her pros- perity is still further checked by the present civil war. In former years a considerable industry was maintained in the production of charcoal iron on the Biscayan coast, etc,, and of wrought iron by the Catalan direct process in the Pyre- nean provinces, Catalonia, etc., but from the causes men- tioned her present iron production is small, being in 1870 but 54,000 tons. Within the last five years, however, very earnest attention has been directed to the Spanish ore deposits by English and German iron masters, principally in seeking ore sufficiently pure for producing Bessemer pig iron. Many companies nave been formed for working the deposits, with an aggregate capital of several million dollars, and large amounts of ore have been and are being constantly shipped to England, Belgium, and Germany. The principal deposits yielding these ores are situated on the Biscayan provinces of Oviedo, Santander, Biscay, Guipuzcoa, etc., and the deposits now most extensively worked are near Samorrostro (Santander), and especially in the vicinity of Bilbao (Biscay). The deposits of the range of mountains along the Biscayan coast, have been examined by Mr. David Forbes, who pronounces them to be of Cretaceous age. The ore is a hydrated peroxide, occupying veins or lodes in the rocks of this age, is quite rich, and particularly free from sulphur and phosphorus. It is an ore well adapted for making steel iron, and for such purposes is principally employed. The ore, as greater depths are reached in the veins, is found to be only a gossan or oxidized outcrop, the mass of the unchanged deposit being spathic iron or car- bonate ores, containing, however, a greater proportion of sulphur than the gossan ore. North European capital has also been at work developing the iron mines of the southern provinces, particularly in Murcia (near Cartagena), in Malaga, Seville, etc. The ore in these districts is principally magnetic and specular. The great addition this entails upon the expenses of sea transportation is, however, against their competition with the product of the Biscayan coast. In the coal-fields of Villanueva, the ore deposits of Seville, etc., find a ready fuel, and it is not unlikely that it will soon be the foundation of a prosperous local manufacture. Statistics of the yield of the Spanish mines are very meagre. According to some authorities the total annual production in 1870 was 436,000 tons, while from other sources the importation of England alone was in 1868 only 88,000, which had, however, risen in 1872 to 631,000 tons. Africa. — Deserving of mention also are the rich and pure deposits of iron ore in Algiers, which have a growing importance in the iron manufacture of Europe. The ores are mainly spathic carbonates and limonites the result of the decomposition of the former. They are quite rich in iron, and particularly free from sulphur and phosphorus, and are now largely exported for the manufacture of Besse- mer irons. France has heretofore been the chief importer of these ores, but owing to the Spanish difficulties consider- able quantities have been sent to England and Germany. Some cargoes have also been shipped to the United States, and have been used by. the Bethlehem, Pa., Bessemer Steel Works. This ore is said to have been sold in New York for $24 per ton. The principal export has been from the Mokta mines which produced in 1872, 335,000, and in 1873,404,000 tons of ore. Attention has recently been directed toward smelting in Algiers, and works are said to have been erected to use coal brought by the ore vessels on their return voyage. Wood, though abundant, consists mainly of cork, mahogany, and other woods too valuable to make charcoal from. North Araerica. — In the abundance, purity, and wide distribution of iron ores, and their accessibility to the largest coal areas in the world, the United States possesses facilities for an iron industry unexcelled by those of any other land. Along the eastern coast, the magnetic ores are found as an almost constant associate of the older metamorphic rocks,- the gneiss, hornblende, and mica schists of the Appalachian Mountains, in nearly continuous lines of outcrop from the borders of the St. Lawrence Eiver and Lake Champlain in Northern New York, to their terminations in the northern part of Georgia. The ore occurs in beds interstratifled with the other members of the Archsean system, following the severe contortions of that series, usually in lenticular-shaped deposits, and though limited in extent and thickness, are often of great magnitude. The thickness is subject to very great variations, and while sometimes occurring in beds 150 to 200 feet thick, they are usually of much less size. In the character of the ores, the mode of occurrence, and their associations, they bear a very close resemblance to the mag- netic deposits of Sweden already mentioned. In Northern New York in the Adirondack Mountains, in Essex and Clinton Counties, immense beds are found, which have long been worked, and supply much of the ore consumed in Eastern New York and on the Hudson Biver. The great beds of the Moriah district in Essex County are remarkable for their great size, in some cases nearly 200 feet in thickness of solid ore. These ores often contain large proportions of titanic acid, sometimes from 12 to 30 per cent., which renders many deposits of little present value. Phosphorus and sulphur, especially the former, are quite generally present, and often in a damaging proportion. In the high- lands of Eastern New York, and portions of the adjoining State of Massachusetts, in the same belt of metamorphic rocks, valuable deposits of magnetite also occur, which are of special importance in Orange, Putnam, and Dutchess Counties. In direct continuation of these deposits are those of the northern counties of New Jersey, Passaic, Sussex, Morris, and Warren, a belt of this same series passing across the State from northeast to southwest, and contains some of the most valuable ores of the Eastern United States. In this region is also included the unique deposit of Franklinite, a manganiferous magnetite containing zinc, which is of great importance in the production of zinc and manganifer- ous pig iron or spiegeleisen. The ores west of the Hudson, in New York and Northern New Jersey, have been wrought from_ a very early period, and contain but little or no titanium, but are commonly contaminated by sulphur or phosphorus, generally to so great an extent as to unfit them for the manufacture of steel-irons. In Pennsylvania, the only really important deposits of magnetite are found in the southeast part of the State, at Cornwall, in Lebanon County, where they occur near the junction of the Mesozoic sandstone and metamorphic Silurian slates. They are quite sulphurous and are associated with copper minerals, but particularly free from phosphorus, and are altogether one of the finest and most important deposits in the country. In other places in Eastern Pennsylvania, magnetites are found, and are remarkable often for an association with chrome and alumina. Following this Archaean belt of the Appalachian Moun- tains, through Maryland and Western Virginia, magnetites occur in numerous places, but their importance is not yet fiilly known. In Western North Carolina they have been fully investigated, and occur in an abundance and of a purity unsurpassed by any other of the well-known regions of the country. They are found in several nearly parallel belts, passing across the western part of the State in a southwest direction into Northern Georgia, where thev still retain con- siderable importance. Some of the North Carolina ores are quite titaniferous, others aluminous or chromiferous, while others again are of very exceptional purity, as the celebrated Cranberry ore of Mitchell County. These ores are found often m beds of 300 or 400 feet in width, and are destined to assume a great value in the development of the iron industry of that region, especially as thev are not far distant from the valuable extensions of the Alleghany coal-field in the Cum- berland region of West Tennessee, the Black Warrior basins etc., of Alabama, and the Deep and Dan Rivers Triassic THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 209 coal-fields of North Carolina. These magnetites of the Eastern United States flank the great Alleghany coal-basin along its entire eastern margin, and must form the most im- portant store-houses of ore for the iron industry of that part of the country. Analyses ot magnetic Iron Ores. Northern New Jersey. North Carolina New York. {Ormtberry ore). Magnetic oxide of iron, . . 93.236 73.20 91.89 Oxide of Manganese, . . trace. .50 .32 Alumina 0.595 4.40 1.03 Lime, . . .... .664 1.56 1.06 Magnesia, .... .119 1.59 .23 Sulphur, .ODT 0.11 .26 Phoapiioric acid, ... .050 0.38 trace. Silicic acid 4.697 r..03 4.02 Titanic acid 0.733 Water 6.58 1.15 100.000 99.95 99.95 Metallic iron, 67.61 53 00 66.53 Bearing a similar though more remote relation to the northweistern margin of the Alleghany coal-basin and the coal-fields of the Mississippi Valley in Indiana, Illinois, Missouri, etc., are the rich specular hematites of Missouri and Lake Superior. The specular ores of Lake Superior, admixed in certain localities with magnetite, are found on the south shore of Lake Superior, beginning about ten miles from the lake in Marquette County, Michigan, and extend- ing thence in a belt about eight miles in width, in a south and westerly direction, into Northern Wisconsin. Develop- ments, however, have only been made extensively in Mar- (juette County, Michigan. The ore occurs in distinct beds in the metamorphic rock of the Huronian age, which are chiefly quartzites, chloritic rocks, ferruginous schists, etc., in which the ore is often only a ferruginous stratum, rich enough to be valuable as an ore of iron. These beds are of great magnitude, in some instances 200 feet or more in thickness, and not unfrequently occur in lenticular masses, as men- tioned when referring to the magnetites of the Eastern United States. The ore varies from a very pure specular ore, often beautifully crystallized in lamellae, to a silicious ferruginous rock, of little value as an ore, and on the whole the ores are generally silicious and often contain much jasper. The ore is otherwise exceptionally pure, as may be seen from the following analysis from the Michigan State Geological Reports : (1) (2) (3) (*) Protoxideof iron, . . 11.87 Peroxide " " . . 74.93 86.70 74.69 93.75 Manganese oxide, . .05 trace. .42 trace. Alumina, . 4.15 1.64 .60 .73 Lime .62 .67 .37 .61 Magnesia, . .92 .24 .63 .23 Sulphur, ... .12 .01 .03 Phosphoric acid, .28 .14 .18 .32 Silica 3.70 9.82 16.44 3.27 Water .52 .61 7.16 1.09 100.06 99.74 100.39 100.03 Metallic iron, .... 66.04 60.69 62.28 65.62 1) Magnetic ore — Champion Mine. 2) Specular ore — Lake Superior Mine 3 ) '■ Hematite " — Foster Mine. 4) "Specular" ore— Jackson Mine. According to their richness, they are divided into three classes : 1st, containing 55 to 65 per cent, of iron ; 2nd, those containing 45 to 55 per cent. ; and 3rd, those ores below 45 per cent, of iron. The ore is mined almost entirely in large open quarries, and since the first openings in 1856- up to 1870 there have been produced 3,771,939 tons of ore, and in the year 1871 alone, the production was 1,073,979 tons, producing about one-quarter of the pig iron made in the entire United States. The great deposits of specular ore in Missouri occur in isolated peaks, or islets of the older Archaean rocks, pro- bably of the same age as the very similar ores of Lake 14 Superior, surrounded by the more recent sedimentary rocks. They are situated about 75 miles southwest of St.Louis, and appear in two principal localities, removed from each other by only a few miles, — Pilot Knob and Iron Mountain. Ad- joining Pilot Knob, are Cedar Hill, Shephard Mountain, etc., which are also ore-bearing. In both these localities, the characteristic associate of the ore is a porphyritic rock, which is usually very much decomposed. The Pilot Knob deposits form a regular bed, distinctly stratified, while the Iron Mountain ore is of a compact character and is found in veins in the porphyry more or less irregular. The ores of both localities have much of the character and purity of the Lake Superior ores, though the Pilot Knob ores are much more silicious than the Iron Mountain. The following analysis from the Missouri Geological Reports will show their composition : Silica Peroxide of iron. Protoxide '* Alumina, . . . Lime Magnesia, . Sulphur, . . . Phosphorus, . . Metallic iron, Iron Mountain. 3.99 91.45 2.34 1.40 ..51 .22 .262 1.67 95.04 2.67 •79 .17 .137 .005 .071 100.353 Pdol Knob. 13.27 84.33 .16 2.19 .21 .14 trace. .035 100.326 6.18 90.87 1.67 .89 1.76 .13 .078 100.647 From the purity of the Lake Superior and Missouri hematites, they afford the main source of supply in the United States for making iron for conversion into steel by the Bessemer process, and for this purpose they are very largely used. They are the main dependence of the iron industry in West Pennsylvania, Ohio, and the Mississippi Valley, and in the coals of these regions, the Lake Superior ores first meet an abundant supply of fiiel in which they are deficient at home. Magnetic ores have been found in the Archaean rocks of Wyoming Territory, Arkansas, etc., but they have not yet become au element in the iron industry of the country. The next ore of importance in the United States is the " fossil " ore, an oolitic red hematite, which is found as a member of the Clinton group in the lower Silurian forma- tion, and is known in different sections as the " Clinton," "fossil," "dyestone," and "flaxseed" ore. In the extent of its distribution, and the uniformity of its character and oc- currence, it is one of the most remarkable ores in the country. Following the formation wherever it outcrops, it is found in almost a continuous stratum over a very large area of the Eastern United States. In Dodge county, Wis- consin, it occurs as a bed 20 to 25 feet in thickness, of a soft gravelly character, and is there mined and known as " flax- seed" ore. Its next place of appearance is where the inclosing formation enters New York State at Little Sodus Bay, from which it passes eastward in a curved line through Oneida and Wayne counties, and southward into Pennsyl- vania at Danville. It is mined and largely used in New York State, where it is familiarly known as " the Clinton " or "Wayne county '' ore. From Danville, Pa., it passes south- ward, through Huntingdon and Bedford counties, and fol- lowing the flanks of the Alleghanies, it is found in all the intermediate States, disappearing finally in Northern Ala- bama. At Danville and numerous other places in Eastern Pennsylvania and in Maryland, it is very extensively worked and known as the "fossil" ore. In Eastern Tennessee and Northern Alabama, as the "dyestone" ore, it forms a very important element in the iron industry of that region. The ore occurs as distinct strata in the Clinton group, usually in two beds, and though varying considerably, is on an average from two to four feet in thickness. The character of the ore is peculiar, being an aggregation of grains of peroxide of iron, each seeming to have a nucleus of some organic re- mains, and the mass is filled with fossils, and usually cal- careous. It is probably the result of a deposition in shallow water in a manner similar to the accumulation of bog ore at the present day, and not a formation subsequent to that of the inclosing strata. Where, however, the beds have been highly tilted, the ore is not unfrequently found changed by 210 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. the percolation of atmospheric waters into a brown hematite or hydrated oxide. The ore very generally contains con- siderable phosphoric acid, from 0..') to 100 per cent., and the pig iron produced is wholly unfit for steel purposes and generally the better qualities of wrought iron, yet it fulfils excellently well foundry purposes and the ordinary grades of malleable iron. The following are analyses of this ore from three States : Tennessee. Pemwyluania. Wlacomin. Peroxide of iron, . . 81.2G 83.Y2 66 93 Oxide of manganese trace. 1.00 Magnesia .5U Magnesia carbo late, 3.48 Sulphuric acid, . trace. Alumina, 3.40 1.16 140 Lime, l.en .20 Lime carbonate, 6.82 Lime phosphate, 8.99 Silica, 6.50 2.96 4.80 Phosphoric acid, 1.45 .64 Carbonic acid, 1.50 Water, • ■ 4.00 11.20 7.60 100.21 99.87 100,02 Metallic iron, . 66.88 68.12 40 15 The ores of the coal measures of the United States are much less abundant and important than those of Great Britain, and while valuable, are insignificant when com- pared with the richer and more commonly used ores already mentioned. In the Alleghany coal-fields no important de- posits are found in the anthracite basins, and though some local accumulations of argilliferous ores are found at the base of the upper group of coals, as the Oliphant ore, etc., of Southwestern Pennsylvania and Northwest West Virginia, the chief deposits occur in the rocks of the lower group, of coals. Several horizons in the lower coals in the western part of the Alleghany coal-field are peculiarly marked as ore-bearing, especially that of the " ferriferous limestones " of Northwestern Pennsylvania and Eastern Ohio, and while they are of some considerable value in Northwestern Penn- sylvania, they become of particular importance in the Hanging Rock region of Southern Ohio and Eastern Ken- tucky, where they are the foundation of a large industiy. The ore resting upon a limestone is a carbonate of iron, more or less calcareous and argillaceous, though it appears more largely as a hydrated peroxide, the result of the de- composition of the original bed. Near the same horizon are also other deposits, of less interest, of nodular clay ironstone. In the Kanawha Valley of West Virginia important accu- mulations of ore are also found in the lower coal series, which are not yet, however, an essential element in the manufacture of iron in that region. At many horizons in the AUe^^hany coal-basin deposits of argillaceous shale occur, including scattered kidneys or nodules of clay ironstone, but they are of very uncertain character and are rarely of any importance as ores. The coal-fields of the Mississippi Valley have nowhere been found to contain any considerable deposits of iron ore. Black band iron ores have been found in the Trias- sic coal-basin of North Carolina, but Dr. Genth reports them to be valueless as ores, from the large proportion of phosphorus present, derived from fossil organic remains. At Pottsville, Pa., black band occurs metamorphosed by the same action that changed the accompanying coal into anthracite, but the deposits have not been found to be of great extent. The only important deposit of black band known in the United States is in the coal measures of Eastern Ohio, where it ex- ists as a local accumulation at the top of the lower series of coals, in limited portions of Stark and Tuscarawas Counties. The deposit varies greatly in thickness and character, and while ranging from 6 to as high as 16 feet, the average thickness is about 12 feet, though it not unfrequently thins out entirely, or passes into a non-ferruginous bituminous clay shale. The ore is generally less rich than the Scotch black band, and contains 25 to 40 per cent, of iron. The only deposits of crystallized carbonate or spathic iron ore known in the United States, are found at Roxbury, Conn., and in Southern Vermont, but they are of little economic significance. The brown hematites or limonites of the United States are very widely distributed, and are of great interest in the iron industry of the country, and while every State contains some deposit of ihcm, they are particularly abundant in the valleys and lowlands along the flanks of the Alleghany Mountains, which are so rich in magnetic ores, and in similar relations, though in less extent, to the great ore deposits of Missouri and Lake Superior. These ores are largely used in the Eastern States as mixtures with the richer crystalline ores, and the deposits of South Vermont, Salisbury, Conn., New York, and at other places, are well known, and contribute largely to the iron industry of that region. In Eastern Pennsylvania, they are very abundant, and at numerous other places in the southern extension of the Alleghany Mountains, in Tennessee, etc., but from the great uncertainty of the extent of the deposits, they rarely can prove the basis alone of any important iron in- dustry in our country.* The Laurentian rocks of Canada are very rich in magnetic ores, similar in character to those of Northern New York.^ The area including them stretches in direct continuation of the Adirondack region on the north side of the St. Lawrence River in a northwesterly direction, crossing the river about Ogdensburgh, and passing in a broad area along the eastern shores of G^eorgian Bay and Lake Superior. The ore occurs in numerous deposits, similar in character to those of Eastern New York, and often of great dimensions, as the celebrated bed of Marmora, which is 100 feet in thickness. They have been mainly developed in the vicinity of the Rideau canal, Marmora, Belmont, etc., in the region north of Kingston, from which they have been shipped to some extent to the iron centres of Pennsylvania and Ohio. Though selected ore of a fair degree of purity is obtained, it is generally largely contaminated with sulphur and phosphorus, and often con- tains very large proportions of titanium. But while Canada contaim very extensive deposits of ore, from the absence of mineral fuel it produces but a very small amount of iron. The immense deposits of magnetite, specular, and other ores which are found in the United States, and the facilities which our mode of transportation gives to their union with the great coal areas of the Alleghany and the Mississippi, must give to the United States the foremost position in the future iron industry, and consequently of the manufactures of the world. In theii* development we are yet but beginning to realize their importance, and the future must witnecs great advances in the manufacture in the Eastern States, but more particularly in the Virginias, East Tennessee, Northern Alabama, and in Western North Carolina, which are so abundantly provided ivith rich and pure ores. The manu- facture of iron in the Eastern States will undoubtedly be divided into two great regions, the northern centring in Pennsylvania, and the southern in adjoining corners of Ala- bama, Georgia, Tennessee, and North Carolina. Indepen- dent, however, of these regions in the east, the facilities offered by the valley of the Mississippi, in its valuable coal- basins, and the rich ores of Missouri and Lake Superior, must surely give materials to large iron industries, and all the attendant manufactures, and the rich and fertile valley of the Mississippi must be the home of a large, wealthy, and from its position, a united population. To complete this article, it may not be inappropriate to add a brief synopsis of the great iron regions of our country, with the peculiar conditions of each, and to this end they may be divided as follows : 1st. The ANTHRACITE and jiagnetic iron ore districts of New York, New Jersey, Pennsylvania, and Eastern Maryland. The establishments included in this division, with the exception of a few charcoal furnaces in New York and Pennsylvania, depend entirely upon the anthracite coal- basins of Northeastern Pennsylvania for their fuel, and produce all the iron made in the country with anthracite coal. This was, in 1872, 52 per cent, of the total production • Since the pi-eparation of these notes much light has heen thrown upon the distribution ani mode of occurrence of the brown hematites of Eastern Penn.<:vlvania, bv the able ami energetic in- vestigation of Prof. Fred. Prim, .Jr., of Lafayette Colletre. These studies form the subject of a very interesting paper " On the Oociu-- rence of the Brown Hematite Deposits of the Great Valley." It is replete with intere.sting facts, and is a long step toward an under- standing of the sequence of events in the' formation of those mos* puzzling deposits, the brown hematites. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 211 of the United States, or 1,197,000 out of 2,300,000 tons, being the yield of 209 blast-furnaces. The ores used are chiefly magnetic and commonly an admixture of brown hematite, and in some cases the Clinton fossil ore, the Rossie red hematite of St. Lawrence County, New York, and in Wes- tern New York some Lake Superior and Canadian ores, and in Maryland argillaceous carbonate from the Cretaceous clays. The districts may thus be subdivided by reference to the position and the character of the ore in each group. (a.) The group of Eastern New York, including the manu- facture in the Adirondack region, at Port Henry, and various places on the Hudson River and contiguous counties ; at Troy, Albany, Hudson, Poughkeepsie, etc., where the an- thracite is brought by canal and railroad from Pennsylvania, and the ores used are mainly magnetic from the Adirondacks and the southeastern counties, with an admixture of the brown hematites of the region. (6.) The group of Central and Western New York. — ^The ores used in the central counties, Chemung, Oneida, Wayne, etc., are mainly the fossil Clinton ore, and in some cases an admixture with magnetite or Rossie hematite, while in Wes- tern New York, at Buffalo, etc., Lake Superior and Canadian ores are generally employed. In 1872 New York produced about 16 per cent, of the anthracite, and about 9 per cent, of the total pig iron made in the United States, the greater part being produced in the eastern section of the State. The entire number of blast-furnaces in the State is about sixty- two. (c.) Northern Neio Jersey, though furnishing large sup- plies of magnetic ore to the neighboring State of Pennsyl- vania, produced in 1872 only 84,035 tons of pig iron, or 7 per cent, of the total anthracite pig iron made in the United States. The ores exclusively used are the magnetites already alluded to, occurring in the northern counties, while the anthracite coal is supplied by Pennsylvania. The manufac- ture is conducted principally at Phillipsburg, Boonton, Ring- wood, etc., and includes about sixteen blast-furnaces. {d.) Eastern Pennsylvania, so well supplied by its abun- dant stores of anthracite coal and the accessible magnetites of the eastern counties and New Jersey, and by the large and scattered deposits of brown hematite, and, near the Sus- quehanna River, the fossil Clinton ore, is the largest pig iron producing region in the United States. In 1872 it produced 893,375 tons, or 74.6 per cent, of all the anthracite pig iron made in the country. This region of Eastern Pennsylvania may be again divided into four groups. {a.) The Lehigh Valley, embracing the manufacture along and near the Lehigh River at Easton, Bethlehem, Cata- sauqua, Hohendauqua, Allentown, etc., producing about one- fifth of the total iron made in the country. The ores used are chiefly magnetites from New Jersey, with equal propor- tions of the brown hematite of the adjoining country. (/?.) The group of the Schuylkill River, embracing the manufacture in Schuylkill, Berks, Montgomery, Chester Counties, etc., where the ores are magnetic, obtained prin- cipally from the Cornwall mines of Lebanon County, with smaller proportions of brown hematite, smelted with anthra- cite coal from the Pottsville region. The manufacture is rep- resented by about sixty-five furnaces, the chief points of production being Reading, Pottsville, Conshohocken, etc. {y.) The group of the Upper Susquehanna, embracing the manufacture in Montour, Luzerne, Columbia Counties, etc., where the fuel is obtained from the neighboring anthracite basins, the ores being chiefly magnetite from New Jersey, and brown hematite, with some Clinton fossil ore ; the latter obtained in the vicinity of Danville. The chief points of manufacture are Scranton, Danville, etc., with a total of about twenty-five furnaces. (S.) The group of the Lower Susquehanna, in Dauphin, Lebanon, Lancaster Counties, etc., where the most impor- tant ore is derived from the magnetite mines of Cornwall, besides which considerable quantities of brown hematite and some fossil Clinton ore are also employed. Charcoal is used in some localities, the principal fuel being anthracite from the Pottsville basins. The furnaces of this group are about forty-five in number. (e.) The final group, which has been included in the re- gion of the Eastern United States, is made to contain the manufacture in Eastern Maryland, in Harford, Baltimore, Howard, and Washington Counties, which though-possessing a few anthracte furnaces, is rather an exception to the clas- sification, as it includes quite a number of furnaces using charcoal and coke, the latter derived from the great Cum- berland coal-basin, while the little anthracite used comes from Eastern Pennsylvania. The ores also are chiefly brown hematite, with some red hematite and argilliferous kidney ore from the Cretaceous clays of Eastern Maryland. The chief points of manufacture are near Baltimore, and the en- tire number of blast furnaces in the group is about twenty- one. 2d. The Mountain Region or Central Pennsylva- nia, lying on the eastern borders of the Alleghany coal- basin, and including also the manufacture depending upon the semi-bituminous coal-basins of Broad Top and Cumber- land, and containing between 45 and 50 furnaces, located chiefly in Blair, Huntingdon, Centre, Franklin, Cambria, and Bedford Counties. Nearly one-half of this number em- ploy charcoal as fuel, while the others use coke made from the coals of the eastern part of the Alleghany basin, and the semi- bituminous coals of the small Broad Top and Cumberland basins. The use of charcoal must soon be entirely superseded by coke, an abundant supply of coal being so accessible. The ore which occurs in greatest importance and regularity is the fossil Clinton ore, which is particularly abundant in Bedford and Huntingdon Counties, besides which large quantities of brown hematite are very generally distributed as surface de- posits, and decomposed fossil ore, which in some cases, are the main source of supply. Large quantities of coal-mea- sure carbonates are also used at Johnstown, and by the char- coal furnaces of Blair, Centre Counties, etc., while small quantities of Lake Superior ore have been imported to one or two localities, but at great expense. The chief points where the pig-iron manufacture is carried on, are at numer- ous places in Blair County, where charcoal is the fuel, and the ores clay ironstones, fossil, and brown hematite; at Johnstown, where are located the works of the Cambria- Iron Company, the most extensive rolling mills in the Uni- ted States — supplied with fuel by the underlying coal, and using the fossil, coal measure and surface limonitic ores. The Broad Top region of Bedford and Huntingdon Coun- ties, drawing its supply of fuel from the Broad Top semi- bituminous basin, has at present a limited manufacture. The presence, however, of vast deposits of the fossil or Clinton ore has destined it to be at no distant future a large pro- ducer. Near the latter, in Maryland, are a few furnaces bearing a similar relation to the semi-bituminous Cumber- land coal-basin. 3d. The Pittsbukgh eegion (which city being the great iron centre, may appropriately give a title to the eur tire region), including the maufactures of Western Pennsyl- vania, Eastern Ohio and Kentucky, and West Virginia; Though possessing much diversity in material and condi- tions in the various sections, all the different manufacturing points can with reason be included in one great iron district. While in some places charcoal is still an important fuel, the larger supply, and the entire future dependence must be upon the abundant deposits of coal of this part of the Alle- ghany coal-basin. The coals vary in character, as the cele- brated open-burning block coals of the Shenango Valley, Pa., and Mahoning and Hocking Counties, Ohio, the splint, coals of West Virginia, and the coking coals, which are widely distributed, and of which the celebrated Connells- ville coal, of Southwestern Pennsylvania, and the Pittsburgh coal are lypes. This region bears also an important relation to the rich deposits of specular and magnetic ores of Lake Superior and Canada, which first find here an abundant supply of fuel, and which are the chief source of supply for the northern districts of the region. Besides these, large quantities of Missouri specular Ores are also used, and in some parfa of Southwestern Pennsylvania, Southern Ohio, Kentucky, etc., the coal-measure ores become of great im- portance. This region may be divided into four districts as follows : (a.) The Pittsburgh district proper, embracing the manu- facture in Armstrong, Alleghany, and the southwestern counties of Pennsylvania, and at Leetona, Steubenville, Martinsburg, Bellaire, etc., in Ohio, and Wheeling in West Virginia. The fuel is exclusively coke, derived principally from the Pittsburgh coal-seam, the Connellsville coal fur- nishing considerable used in the district, though coke is alsp 212 THE MINES, MINEES AND MINING INTEEESTS OF THE UNITED STATES. made at each place from the local coals. The coal-measure ores are used in Armstrong and Lafayette Counties, but the main supply are the rich ores of Lake Superior, Missouri, and Canada. The chief points of the industry are Pitts- burg, which from the extent of its manufacturing industry has not been inaptly called the Birmingham of America, as it is undoubtedly the city of the largest iron manufacturing interest in the country. Steubenville, Ohio, and Wheeling, West Virginia, though much inferior in importance, are rapidly becoming the centres of an extensive industry, and the latter place, from the magnitude of its nail manufacture, is commonly known as the "Nail City." (6.) The Uock coal regions of the Shenango Valley, Penn- sylvania, and Mahoning Valley, Ohio, in Lawrence and Mercer Counties, Pennsylvania, and Mahoning and Trum- bull Counties, and Cleveland, Ohio, comprises 34 furnaces in Pennsylvania, and 25 in Ohio. The fuel is exclusively block coal, which is used in the raw state in the blast-fiir- nace, and as the "Briar Hill" or "Mahoning Valley" coal, has become celebrated as one of the finest known smelting fuels. The ores are almost without exception the rich spec- ular ores of Lake Superior, though sometimes small quanti- ties of Canadian or Lake Champlain ores have also been imported. The ores of the region are generally shipped by way of Cleveland, which is the most important iron market on the entire chain of the great lakes, it being the commer- cial centre for the chief Lake Superior mines. The chief points of manufacture in the region are Sharpsville, Sharon, Middlesex, and Wheatland, Pennsylvania, and Youngstown and Cleveland, Ohio. (c.) The black band district of the Tuscarawas Valley, in Stark and Tuscarawas Counties, Ohio, with furnaces at Massillon, Canal Dover, Port Washington, etc. Though but a small iron-producing district, from the exceptional char- acter of its conditions it merits separate consideration. The ore used is the black band ore, the only place in the United States where it is used in any quantity, and though the de- posits are of limited extent, it must be the foundation of a considerable industry, especially in the event of its mixture with the richer crystalline ores. The fuel now used is Mas- sillon block coal, similar in character to the Mahoning coal, though coke will eventually be very considerably employed. In the character of its product it more closely resembles the celebrated "Scotch pig," than any other iron made in the country. (d.) The Hanging Rock region of Southern Ohio and East- ern Kentucky, in Lawrence, Jackson, Vinton, etc., Counties of Ohio, and Boyd and Carter Counties, Kentucky, is the largest charcoal iron region in the United States ; but char- coal is rapidly giving way to the use of mineral fuel, which underlies the entire region in great abundance. The special characteristic of this region is the rich and valuable deposits of ore found in the rocks in the lower group of coals, which occur either as a bed of unchanged calcareous or argilla- ceous carbonate of iron, or as a hydrated peroxide, the result of the oxidation of the original bed, as well as some less important accumulations of kidney ore, etc. The iron made from these ores with charcoal has long held a superior rank as a peculiarly soft and tough iron, and has been largely used by the government for ordnance purposes. The substitution of coal for charcoal and the opening up of new avenues of transportation are rapidly increasing the impor- tance of the region, and permitting the importation of the Missouri and Lake Superior ores, which work admirably with those of native origin. Large and pure deposits of open-burning coal are accessible from the Hocking Valley region on the north, and have been long used from the Coalton region of Kentucky. The chief points of the man- ufacture are at Ironton, Ohio, and Ashland, Kentucky, which two places are the keys to the region, in their respec- tive States, Ohio being represented by 46, and Kentucky by 15 blast-furnaces. In West Virginia, beside the points al- ready mentioned, there are very large deposits of iron ore, as well as excellent fuel, both coking and open-burning, which must ere' long be the foundation of a large industry. The valley of the Kanawha Eiver has been characterized by numerous observers as particularly rich in such resources. 4th. The region of the Southern Alleghanies, in East Tennessee, West North Carolina, Northwest Georgia and Northern Alabama, or the Chattanooga region, though at present represented by but 52 blast-furnaces, some half dozen of which only use coke or raw coal, is still most im- portant in its resources and in the relation which it must bear to the future iron industry of the South, and the coun- try at large, when better means of communication are pro- vided and the region becomes more developed. In the Cumberland table-land of East Tennessee, the Black War- rior, Coosa, and Cahawba basins of Alabama, we have the southern prolongation and termination of the Alleghany coal-fields, represented here by numerous coal-seams of great value, and which, though at present very little developed, must be the key to extensive manufactures and great wealth. The extreme northwest corner of Georgia possesses also some coal— the overlapping edge of the Alabama and Ten- nessee coal-fields, and North Carolina contains in the Triassic coal-basins of the Deep and Dan Eivers, coal similar in character to those of Eichmond, Virginia, which may be of value in iron smelting. The great extent, purity, and im- portance of the magnetic iron deposits of North Carolina, which extend also into Northern Georgia, though not yet very largely opened, must make a chief source of supply in the future iron industry of the South. The ores at present mainly employed in Georgia, Alabama, and Tennessee arc brown hematites, which are very abundant, and the dye- stone or fossil ore, which latter is used in Georgia and Ala- bama. The fuel now employed is, with only a few excep- tions, charcoal, but the supply of wood is necessarily limited, and in the future expansion of the manufacture, the depend- ence will be upon the coal-basins already mentioned. Many of the coals of Alabama and Tennessee are dry or open- burning in character. At present the manufacttire in Ten- nessee is principally conducted in Eoane, Carter and Green Counties, by about 10 furnaces ; in Alabama, in Jefferson, Cherokee, Shelby, and Bibb CountieS; by 17 furnaces ; and in North Carolina, in Chatham and Lincoln Counties by 10 furnaces. 5th. The manufacture in Western old Virginia, along the flanks of the Blue Eidge Mountains, in Wythe, Pulaski, Page, Augusta, Botetourt Counties, etc., which, however, is not yet of great importance. The points of manufacture are widely scattered, the fuel with one or two exceptions being charcoal ; while the forests will furnish a long supply of fuel, the basis of large industries mnst be the mineral fuel, which is readily accessible in the adjoining coal-basins of the Cumberland on the north, and West Virginia on the west, the use of which will concentrate the establishments in such places as are accessible to both ore and fuel. The ores employed are at present almost exclusively brown hematites, with a small proportion of red hematite, produc- ing in 1870, according to the census returns, 17,200 tons of pig iron. 6th. The region of Western Kentucky and Ten- nessee, south and west from Louisville — in Lyon, Trigg, and Bullitt Counties, etc., in Kentucky ; west of Nashville, in Stewart, Dickson, etc.. Counties, Tennessee. Though containing, in Western Kentucky, part of the Illinois coal- field, this is an iron region of comparatively little interest. It is represented in Kentucky by 9, and in Tennessee by 14 blast-furnaces. The fuel is, with one or two exceptions in Kentucky, charcoal, the ore being brown hematite, which is found frequently in large deposits, mainly decomposed nodules of carbonate and sulphide of iron, from the lower carboniferous rocks of the region. This region is probably never destined to be of much importance in the production of iron ; the ore is scattered somewhat uncertainly in its de- posits, and too often quite silicious, but as a feeder of ores to the iron manufacture in the southern part of the Illinois coal-field it may meet a needed supply of raw material. 7th. The block-coal iron region of Indiana, ori- ginated within the past few years, and though at present represented by less than a dozen blast-furnaces — situated in Clay, Vigo and Martin Counties — is a region of peculiar in- terest. The southwestern part of the State is underlaid by the eastern margin of the Illinois coal-field, and in the counties named, the coal is extensively mined and used in iron smelting. It is an open-burning block coal of unusu- ally excellent and pure quality, resembling very closely the block coals of Eastern Ohio. Indiana contains no iron ores of economic value, and hence the supply is obtained from Missouri or Lake Superior, chiefly the former. The THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 213 iron made is of excellent quality, and has been successfully used in the Bessemer process. The manufacture is centred principally around Terre Haute and Brazil. 8th. The Missouri iron region, with St. Louis as a centre, includes the manufacture in Southern Illinois and Eastern Missouri. Considering the immense deposits of specular ore of Pilot Knob and Iron Mountain, and the great extent of the workable coal area in Missouri, Illinois, and Kentucky, this region has resources which when developed fully must make it the great iron centre of the Mississippi Valley. At present the manufacture is main- tained chiefly at and near St. Louis, Grand Tower, Pilot Knob, and in Franklin and Campbell counties, Illinois, the furnaces being about 24 in number. The ores are drawn almost entirely from Iron Mountain and Pilot Knob, while in the adjoing counties in Missouri, a small industry is supported by less iniportant deposits of red and brown hematites. The coals of the Missouri and Illinois coal- basin are as a rule much more impure than the coals of the Alleghany basin, and most of them require washing before they will make coke suitable for iron smelting, though from their general dry character some of the coals are used in the raw state, as the coal from the Big Muddy, Illinois. At St. Louis and Grand Tower, coke is made chiefly from the Big Muddy coal of Illinois, though no inconsiderable amount has been brought from Pittsburgh and Connellsville, Penn- sylvania. In the other works of Southern Missouri, char- coal is the only fuel used. The iron produced with these materials is of an excellent quality, and together with the iron mad3 from Lake Superior ores, ranks as the best in the country. 9th. The Northern Illinois or the Chicago region, is not large in the number of its establishments, but it includes, at Joliet, in Will county, Illinois, one of the largest pig iron and steel works in the West, and at Chicago and Milwaukee several fine blast-furnaces, beside a number of others in Southern Wisconsin, in Dodge, Sauk counties, etc. The ores that are the chief dependence of the indus' try of the region are shortly and easily transported by water from the Lake Superior region, via Escanaba, Some Mis- souri ores are used at Joliet, and in Central Wisconsin the celebrated fossil or flaxseed ore of Dodge county is largely smelted and exported, and to some extent used at Milwaukee and Chicago. In Wisconsin, charcoal is still used, while much of the fuel at the other places is coal and coke from the northern part of the Illinois coal-field. The coal is not of so good a quality as that of Pennsylvania and Ohio, and while at Joliet, etc., large quantities of Northern Illinois coal is consumed, there is still a very considerable amount of coke imported from Western Pennsylvania. At Chicago and Milwaukee, anthracite has been brought from Eastern Pennsylvania, and mixed with the native coals. The source of fuel supply, however, for this region must be the Illinois coal-field, and necessity will compel the use of more perfect methods of fuel preparation. 10th. The Lake Superior iron region comprises the manufacture of pig iron in the Lake Superior iron ore district, from the rich native hematites, which, from the entire absence of mineral fuel, is conducted with char- coal, with only one or two exceptions where Ohio or Penn- sylvania coals are imported by the ore vessels on their return trips from the lower lakes. The iron produced holds a deservedly high reputation in the Western markets, and is very largelv used for the manufacture of Bessemer steel in Pennsylvania, Ohio, and Illinois. In this group is included the manufacture in Marquette county, Michigan, and the counties adjoining Green Bay, Lake Michigan, and in Brown and Outagamie counties in northern Wisconsin. Though not properly included in this group, there is quite a considerable industry in Southern Michigan, depending on the supply of Lake Superior ores, and which belongs properly to none of the other groups mentioned. Thus the Lake Superior ores are carried from Escanaba across Lake Michigan to several counties adjoining Grand Traverse Bay, where°are vast forests of timber, also to the southern end of the lake to Van Buren county. At Detroit also, on the direct line of communication between the upper and lower lakes, a considerable industry is established, where the ores await the anthracite and bituminous coals of Pennsylvania and Ohio, as well as tlie charcoal of the adjoinmg country. In all, the furnaces in the places mentioned number about 50, and in the Marquette' region of Upper Michigan are located the greater proportion, nearly 40, producing in 1870, 60,000 tons of pig iron. The region to which this name is more generally applied is however, centered in Marquette county, where are located also the immense and valuable ore deposits. — A paper by Henry Newton, E. M., Transaciions American Institu'.e of Mining Engineere. IRON MANUFACTURE IN MEXICO. THE works of the Tula Iron Company are in the Re- public of Mexico, State of Jalisco, twenty-eight leagues southwest of Guadalajara, ten leagues north- west of the town of Sayula, through which passes the projected line of the Mexican National Railroad. Its geo- graphical position would be about : latitude, 20° 10' N., longitude, 4° 35' W. of Mexico City. The surrounding country is a rolling plateau, 6000 feet above the sea, en- joying the most magnificent climate in the world, the average temperature being about 70°. The works were commenced in 1860 by a company with a very small capital, having not the least idea of the undertaking. They soon fell into the hands of the money-lenders, and after changing owners three times, the works came, in 1870, into the present com- pany, and have been in a manner rebuilt. As they were originally commenced without any fixed plan, and each suc- cessive owner has pulled down and rebuilt acccording to his fancy, the result is a number of old machines and sheds, huddled together in the most inconvenient manner, which have cost about four times as much as an entirely new es- tablishment. Description of the Works. — Water-Power. — Being placed at the junction of two synclinal valleys, Atunajac on the north and Tapalpa on the south, the direct drainage of thirty square miles is partially received ; and for a trifling amount expended in straightening and removing the ob- structions of the various water-courses, the amount of water in the drye.st season (the month of May), which is now 3.6 cubic feet per second, may be doubled. The rainy season commences in June and ends in October. The present dam collects sufficient water to last until the end of April, or about ten months, more or less. This dam is of rubble masonry, built in form of an L, across the valley. It is 650 feet long and 20 feet high at the highest point. Here it is 7 feet at the base and 3 J feet at the top ; the back vertical and the face with a batter of 2 inches to the foot, or the base is equal to 0.35 of the height. A wall of this height (20 feet), to be just equal in resistance to the pressure of the water, should be at least 8.4 feet, or 0.42 of the height. The numerous retaining-walls added at inter- vals of SO feet protect it irom overturning. The back water extends half a mile ; the average width is 600 feet. The ground contiguous to the works is in the shape of a horse- shoe. At the apex or top there is a basalt dike,80 feet high, which being in the bed of the old stream, the water has eroded a deep ravine below, and caused the present topo- graphy. On one side is a water-tank, to be subsequently mentioned, on the other are the works. The Furnaces. — In a deep excavation in the hillside. No. 1 furnace was built. Stack (brick), 28 feet high; bosh, 6 feet 5 inches, inclination, 50° ; throat, 3 feet; heart 19 by 20 inches, rectangular ; two tuyeres, IJ inches and 17J inches above hearth-line; cold blast; pressure, 1 pound. The lin- ing above the bosh is of refractory stone, said to have been in use thirteen years ; the hearth is of stone. From the tuyeres to the bosh a composition is used, made of equal parts of clay, from a place called Capula, powdered stone, and powdered quartz. It generally lasts from four to six months. Blast is supplied by two double-acting wooden blowing cylinders, with clock valves ; diameter, 3 feet ; stroke 7 feet. These also furnish blast for four bloomary fires and two smith's forges. This machine is driven by a 30-feet overshot water wheel, which gives about 46 per cent, of the 214 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. power of the water used. This wheel drives also a small drill-press and turning lathe. In front of furnace No. 1 is the foundry, 40 x 60 feet, arranged with suitable cranes and apparatus. To the right in an excavated space, are two badly constructed cupolas and the exit gate. At the end is the carpenter shop, very small and crampy, beneath which is a storeroom for pig iron and billets. On the same level is the bloomary, twenty feet below the level of the foundry, to the left, which consists of four bloomary fires two trip ham- mers, operated by separate overshot water wheels of 15 feet diameter. In the same building are also an old single-pud- dling furnace and nine inch bar mill, both worthless and abandoned. About fifteen feet to the left of the foun- dry and furnaces is a reservoir, 50 x 80 feet, which catches the water from the 30-feet water wheel and delivers it to the water-wheels of the bloomary. Furnace No. 2 is immedi- ately behind or to the south of No. 1 about twenty feet, in a space excavated for the purpose. The stack was of cut stone, with ornamental cornices. It was erected in 18G9. Two horizontal wooden blast cylinders, 4x7 feet, were geared to the above mentioned 30-feet water-wheel. A Was^eral- fingen stove was constructed to supply hot blast. An at- tempt to blow in was made, and after two weeks' severe labor a gas explosion destroyed the stove, the machinery was found iuefiective, the work was abandoned, and the lining torn out. Such was the condition of the old works in 1870, which are said to have absorbed $400,000, without taking into consideration the hacienda, church, workmen's houses, and other improvements necessary for the existence of iron works. The Ne"w Works. — Blast furnace No. 2 has been re- constructed after plans furnished by Messrs. Taws & Hart- man, of Philadelphia. Hearth (round), 3 feet 6 inches dia- meter; bosh, 9 feet; height, 85 feet; throat, 3 feet; two tuyeres, 3 inches diameter and 30 feet above the hearth- line. It is lined from the mantle to the throat with the so- called refractory stone This is a white magnesian silicious stone, which, when first quarried, can be cut easily with a hatchet, but when dry it breaks. It is very heterogeneous in quality. Of several samples, apparently alike, some may be very refractory and the others utterly worthless. When gradually heated to the temperature of melting cast iron in a thoroughly clean bloomary fire, it swells, cracks, and glazes greenish, the interior being porcelain-white. At the end of an hour it melts to a pasty mass of dark-brown color. The trouble experienced with the fire-stone caused all the brick in the country to be tried, and those of San Pedro, near Guadalajara, were found to be the best, and although hj,ving to be packed thirty leagues on mule-back, were cheaper than the cut stone, and fullyequal, if not superior, to it in quality. These brick are badly burned ; on being heated they contract 20 per cent, of their length, warp, and crack. There is no quartz near San Pedro, so old brick and broken quartz were sent to be mixed with the clay, but as the brick are made by Indians, who tread the clay with bare feet and knead it by hand, they would only add quartz in fine powder, and claim that it is the only proper way to make good brick. Over four months were consumed before we could get a few experimental brick made, which were found to be an improvement on the old brick, but many months, or even years, will elapse before they will make what is wanted. It was finally decided to line the bosh and hearth with brick, 16 x 1 x 1 j inches, which is the size the Indians could make most readily. As there was already on hand a supply of water sufficient to run a thirty feet overshot water-wheel, consuming seven cubic feet a second, for ten months in the year, it was con- sidered far preferable in every way, and more economical, to use water-power than steam, provided that with the great fall near the works a turbine could be got guaranteed to do all the work and use only three and one-half cubic feet per second, in which case the old wheel, which was much out of repair, would be abandoned. Acting on this view, one of the owners of the company, relying implicitly on the assurances and reputation of a well-known manufacturer of turbines in the United States, bought a horizontal turbine of eighteen inches diameter, to use as a motor. Two double acting blowing cylinders, three feet diameter by two feet stroke, made by Naylor & Co., of Philadelphia, with shaftins;, jour- nals, and patterns for the gearing were bought and shipped. The housings, bed-plates, and cog-wheels (of brass) were made at the works. Twelve hundred cubic feet of air per minute, at two and a-half to three pounds pressure per square inch, and fifteen horse power, were required by the furnace. The turbine was expected to make six hundred to seven hundred revolutions per minute, or twenty-four revolutions to one of the blowing pistons. Considerable doubts were entertained about the turbine, but from re- peated assurances from the manufacturers that, with one hundred and fifteen feet fall, it would give thirty horse- power, or eighty per cent, of the power of the water used, and as all the machinery and fixtures were on the ground, it was decided to put it in. It was the intention to use a wooden or brick conduit for the blast, but as the distance was great, and it would have to be built over a stream and up a hillside at an inclination of thirty-five degrees, a wrought iron conduit pipe, twenty inches in diameter, was sent for, which was shipped in sheets and riveted on the ground. The blowing machinery was placed on a solid cut-stone foundation in the ravine in line with the hot- blast. The length of the conduit-pipe was 387 feet. It was provided with a suitable expansion joint, and properly secured to solid masonry pillars. A rubble stone canal, 1,000 feet long, capable of delivering nine cubic feet of water per second, was built from the dam, around the hill- side, to a small reservoir placed on the other side of the horseshoe, opposite the works. This reservoir, sixty by ninety by three feet, was intended to catch mud, and also to retain water for thirty minutes, in case of sudden stop- pages. Cast-iron pipes, twelve inches in diameter, conveyed the water two hundred and fifty feet from the reservoir to the turbine, having a fall of one hundred and fifteen feet. The' season was so far advanced that little water could be obtained to make a thorough test of the machinery, but by filling the reservoir and noting the time it took to flow through the turbine, it was found that about seven to eight feet per second were used, and that the turbine gave very little power even then. The manufacturers now say it was only an experimental wheel, and they thought that it would work. A modification of Kent's hot-blast stove, with twenty pipes, capable of heating two thousand cubic feet of air per minute up to 1,000° F., a bell and hopper, drop- valves, and all of the most recent and improved fixtures from the United States completed the outfit of this furnace. Bar-Mill.— This is placad on a hill, on a level with the top of furnace No. 2, the waste gases from which will heat, as desired, both hot-blast and boilers, which are also placed on the same level. The building is 150x40 feet, and fifteen feet in the clear, roof of tiles, supported by heavy wooden trusses resting on brick pillars ; only a portion of the sides are boarded in as a protection against rain. The end far- thest from the blast furnace, or east end, is allotted to the puddling furnaces, there being space for six ; one double furnace is completed. In the center of the mill there is a one-ton steam hammer, to shingle the puddle-balls ; it is from Ferris & Miles of Philadelphia, and works well. About midway of the building on the south side are the heating furnaces, one of which is in operation. Beyond the heating furnace is a three-high bar-mill, of the best work- manship, capable of making 2J inch bars, and all sizes of flats, IJ inch squares, and various sizes down to ,85- round. A set of puddle-rolls is provided, and an overhead rail- road connects them with the steam hammer and puddling furnaces. The- mill is driven by a twenty-inch leather belt from the fly-wheel of the engine, which is in a brick room on the north side of the building, opposite the heating fur- naces. The engine is one hundred horse-power, from Mackintosh, Hemphill, & Co., of Pittsburg. It rests on a solid cut-stone foundation, and is a particularly well built and smooth working machine. There are two boilers of the best Pennsylvania charcoal iron, forty-two inches diameter by forty-five feet long; they have been tested to 150 pounds hydraulic pressure, or double the working pressure allowed. They are provided with both injector and steam-pump ; the pump IS usually worked, and the injector kept for accidents ; a little water is always kept running from one of the cocks so that the fireman may know that the boilers are full. A steam-pump and shears were needed to complete the equipment. The mill has .be?a constnicted to work THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 215 towards the blast furnace, or west, where there is but little space ; it should have been made to deliver at the east end, where there is ample room. Foundry. — This requires no special description; castings are generally made direct from the blast furnace, but when the latter is not in blast the cupolas are used ; these are badly constructed and insnfBciently supplied with blast, and as much as sixteen hours have been consumed in getting a single heat from them. The fly-wheel of the engine, four- teen feet in diameter, and weighing over four tons was cast in a single piece direct from the blast furnace, as were also the bed-plates of the engine and blowing machinery, and various heavy castings of the hot-blast. Every description of castings can be made from five pounds up to four tons, but they nave no experience in making casting as thin as a quarter of an inch. Castings are generally made in the even- ing and removed in the morning. It seems to be a fixed custom to immediately remove the top covering as soon as the iron solidifies, and allow the top to cool, so the piece frequently warps and is generally so hard that it is difficult to cut with either file or cold-chisel. The workmen are spe- cially skilful in making baluster railings, ornamental rustic chairs, and sugar-boilers ; of this class of work few foundries of the United States or Europe can make neater or cleaner castings. There are several smith's forges scattered around, well supplied with tools, and a lathe and drill'press, in bad condition, driven by water-power. The carpenter shop.s, of which there are two, are fairly furnished, but no seasoned lumber is ever kept on hand even to make patterns ; in fact only a few boards are brought on mule-back, from time to time, from the saw-mill fifteen miles distance, as necessity demands. There was but one good monkey-wrench, after which boys were kept in perpetual pursuit. The shovels were of wood, and there was a general deficiency of picks, axes, and other small but absolutely necessary tools. Tram- ways with hand-cars should be substituted for the barbarous and expensive system of packing loads on men's backs ; but the most deep-seated and yet cunning prejudices exist against all labor-saving devices. The District of Tula.— The nucleus of the hills is green- stone, generally overlaid by a thin seam of a shaly disjointed sand-rock, the joints of which are highly discolored by oxide of iron. In some places may be observed a layer of stone, which, from its position and character, has evidently been formed from the disintegratien of the greenstone, and subsequently cemented. Amole Mne.— This is situated on the side of a ravine two and a half miles from the works ; it is the only mine in the district, but from the occurrence of iron outcrops in variou-. places, others will probably be found and opened up with advantage. On one side of it is a trap dike, on the other side the disjointed stone, and lower down the ravine the cemented stone. It is worked by an open cut extending horizontally seventy-five feet into the hill. So far it is only a pocket, but from the indications of float rock about; a small drift would possibly soon disclose a vein parallel with the dike. The ore and waste (the latter being thrown into the ravine) are packed on men's backs. A mine car is very much needed, since the farther the open cut penetrates the hill the more will be the waste and the greater the distance it will have to be carried. The ore occurs in bunches, a,nd is very variable, passing from a limonite to a crystalline specular hematite and a micaceous hematite, the one verging into the other without any apparent regularity ; it is broken and hand-picked at the mine. The gangue is clay mixed with decomposed hornblende. This ore is very unpopular with the furnacemen ; the micaceous ore they caW plumbacma (graphite) and throw away as worthless. The following are the analyses of two samples of the limonites such as they prefer to work, made by Kenneth Robertson, E. M., ot Eas- ton, Pennsylvania: ^^^ p^ (1) Silica, 293r Water, Alumina, .... Phosphoric acid, . . Ses'quidxide of iron, Protoxide of iron. Lime, ... Magnesia, . . ■ Metallic irf^n, Phosphorus, 2.19 1.16 ".21 03.74 2.66 0.66 0.25 100.00 46.68 0.092 27.50 6.21 2.10 0.46 63.38 0.26 0.10 100.00 44.36 0.20 The cost of mining is $0.9| per cargo of 300 pounds or $0.62J per ton; transportation to works $0.12J per cargo or S0.83| per ton ; or total cost of one ton of 2000 pounds delivered at the works 81.46. The Mineral District of Chiquilistlan. — ^This is twenty miles west of the works and is of very interesting character. The formation is limestone (probably Tertiary), greatly upheaved by volcanic action, and penetrated in various directions by trap dikes. The general trend is northeast by southwest. Comparatively near together are mines of iron, copper (both oxides and pyrites), silver, lead, coal, and, I am told, also, tin and graphite. Here, also, is the once famous cinnabar mine of La Manta, which caused the town to be a quite important place. It was worked by the Spaniards, who only employed prisoners, and it is said that any man who survived six months' work was given his freedom. The mine is now abandoned, but with machinery could easily be opened. The large excavations, and a pile of over ten thousand tons of dibris, attest the extent of the operations. A little mercury is distilled in Canteras, from a hydraulic washing in the neighborhood. There is an abundance of wood and water near this mine. Tacofes Mine.— Thii is the principal iron mine of the works, from which it is twenty-one miles distant, the trans- portation being effected as usual by pack-mules. It is situated in the southern portion of the district, on the side of a steep hill, about eight hundred feet above a ravine. The vein is what is termed segregated, occupying a space between parallel seams of limestone. Its outcrop may be distinctly traced from the top of the hill to near the bottom of the ravine, and I am told that it also extends to the other side of the hill, but that has not been proved. Half-way up the hill it is worked by an open cut, which now extends horizontally inward about two hundred feet by eighty feet wide, and exposes six seams of ore of an aggregate thickness of fifty to sixty feet. A little powder is occasionally used for blasting. The chief labor is in disposing of the waste, which is packed on men's backs, in raw-hide sacks, and dumped in the ravine. The natural way to work the mine would seem to be in benches or steps, using chutes and mine cars to carry off the waste to two small ravines which exist conveniently on either side of the vein, and down which water continually flows. The cost of exploration would thtis be diminished and the yield be increased to any desired extent. The present cost of mining is 4i cents per carga, or 28t% cents per ton ; transportation to works, 37^ cents per carga, or $2.50 per ton. Total cost per ton at the works, $2.78t%. The gangue is clay, with very hard sili- cious nodules of iron ore. The following are the analyses of the various seams, made by the above-mentioned chemist : Silica Water . Alumina .... Phosphoric acid . Sesquioxide of iron Pr' toxide of iron . . . Sesquioxide of manganese. Lime . Magnesia . . Metallic iron Phosphorus . ^t 1.14 0.90 0.76 0.39 95.97 0.32 0.52 loo.no 67.18 0.17 1.70 1.16 0..58 0.06 95.97 0.27 0.26 100.00 67.18 0.026 2.81 0..55 2.30 0.21 09.08 0.28 1.43 100.00 66.44 0.092 2.18 0.14 94.80 0.28 0.11 100.00 66.36 0.06 9.50 11.30 2.03 trace. 64.39 22.68 0.20 0.90 100.00 62.73 t-.o - a 4.T2 5. 1.20 0.47 86.67 0..52 0.48 0.26 100.00 60.67 0.20 3.73 1.43 1.62 0.21 84.68 7.66 0.09 0.30 0.58 lon.oo 6509 0.092 These ores, from No. 1 to No. 4, are brown hematites ; No. 5 is occasionally crystalline, and makes excellent fettling for the puddling fiirnaces; No. 7 is extensively sold to the numerous Catalan forges in the neighborhood, or exchanged for other ores that the forgemen dislike to work. La Mora Mine. — This is nine miles north of Tacotes, in a similar formation to the last, but more irregular. It has been worked from the time of the Spaniards, and extends about three hundred feet under ground in various directions. The ore has not been mined, but dug out. Several crosses are placed at the entrance of the mine, to encourage the 216 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. miner and insure him of safety. It is now only worked to a limited extent, to mix with other ores. It is much sought after by the Catalan-forgemen, and the blast-furnacemen consider it almost impossible to work without it. The fol- lowing analysis does not indicate any important difference from the other ores. It must, therefore, owe its good quali- ties to its molecular condition : Silica, 3.24 Alumina, 2.88 Pliosphoric acid, 0.37 Sesquioxide of iron 68.61 Protoxide of iron 22.73 Oxide of mangane.se, 0.52 Lime 0.34 lyiagnesia 1.31 Metallic Iron, Phosphorus, 100.00 . 05.72 . 0.19 It costs to mine, 16 cents per carga, or $1.15 per ton ; transportation, 43J cents per carga, or $2.92 per ton. Total cost at the works, $4.07 per ton. Las Animas Mine. — This is also a segregated vein in lime- stone, four miles west of La Mora mine. The outcrop can be traced without difficulty for over a thousand feet. The vein is well defined and regular, varying from three to five feet in thickness. It has been but recently opened and the exploitation is done in a very workmanlike manner. The property is not owned by the company, but the ore is ex- changed for that of Tacotes and delivered at the works for the same price. The forgemen do not like it. In the blast furnace it works well and makes a very fine-grained and very tough iron, which has not yet been analyzed. Within half a mile of this mine occur several pockets of cinnabar, that have been worked from time to time for the last two hundred years, yielding from one to five per cent, of mercury. Coal. — On the northern edge of this district, eight miles northeast of La Mora, occurs an outcrop of coal, occupying seams of limestone and shale, the latter being in contact with the volcanic rock. There are four distinct seams of bituminous coal, dipping conformably with the limestone, varying in thickness from eighteen inches to three feet. A shaft thirty feet deep on the largest, discloses a seam of bitu- minous shale interstratified with small seams of bituminous coal, with conohoidal fracture, bright surface, and very pyritiferous. When slightly heated it will burn with a bright flame. Before the blow-pipe it cakes and gives off a strong empyreumatic odor. It may be valuable some day for steam purposes, but will never be useful metallurgically and is probably a deposit that would not pay for prospecting. Limestone. — This occurs in an inexhaustible bed nine miles south of the works, in a prolongation of the Chiquilist- lan formation. It is delivered, calcined, at 75 cents per carga, or $5.00 per ton. The raw stone can be delivered at $1.40 per ton, but the calcined stone is used in the furnace because they are used to it, although the saving in fuel is in- considerable. The following is the analysis of the calcined stone, and calculated analysis of the raw stone : Silica, Alumina and oxide of iron, Lime, . . Magnesia .... CarDonic acid, . . Calcined. Eaw. 1.96 1.48 . 2.59 1.95 70.43 63.12 108 0.82 23.94 42.63 100.00 Fuel. — The company owns six and a half square leagues, or thirty-six thousand acres of land surrounding the works, one-half of which is already cleared; but for twenty' leagues around the mountains are covered with a magnificent forest of oak and pine, and several valuable leases or privileges are held for cutting timber at the most accessible points. The wood is burnt in piles con- taining about ten cords (one cord equal to one hundred and twenty-eight cubic feet), and yields charcoal of the best quality, weighing seventeen to twenty pounds per bushel, of two thousand seven hundred and forty-seven cubic inches. The charcoal-burners are Indians, who work by contract. To avoid hauling or packing the wood they built their piles where the wood falls. They are always very small ; some- times they are built about one hundred feet apart, with only one man to attend them all. During a windy day, which frequently occurs, some are necessarily neglected. It is useless to try to persuade them that this system is very waste- ful, and that experience elsewhere has shown, that it is far more economical in labor and yield of coal to haul Wood and burn it in kilns, or at least in piles containing thirty or forty cords. The charcoal is delivered in sacks, weighing one hundred to one hundred and twenty pounds, including waste, at twenty-three cents a sack, or about four cents a bushel. The coal should be forked, all brands, waste, and stones rejected, and be paid for either by weight or by measure ; but this is never done, being contrary to the " cos- tumbus, del pais." Cost Per Ton (2000 lbs.) of Pig Iron.— Boasting and Breaking. — The ores from the mines of Tacotes, Las Ani- mas, and Amole are roasted in piles, with wood and charcoal braize, and then broken by hand, whether they have been fused or not, to the size of a walnut ; about five per cent, is lost in this operation as waste. Cost of roasting per ton, . " breaking " .$04.0 . 0.20 Cliarges of Foraace THo, 1. Tacotes, ... . . 1.5 boxes = 118 lbs. Amole 0.6 " — = 33 " La Mora, 0.5 " = 33 " 184 lbs. Charcoal, .4 baskets =165 " Calcined limestone, .... . i shovel — 2.06 lbs. Number of charges a day, 50 to 60 ; yield of iron, about 55 per cent. ; loss of iron in slag, 7 per cent. ; average pro- duction per day, 3 tons ; charcoal consumed per ton of iron, 3228 pounds. In addition, about 20 bushels are consumed at the tymp (no clay or sand stopper being used), from which rises a bright flame two or three feet high, similar to that of the Catalan forges, as worked by the Indians in the neigh- borhood. Cost ofBIaterlal per Ton of Iron. Tacotes ore roasted and broken, 1.15 tons @ $3.38, . $3.89 Amole, " " " '• 0.33 " @ 1.35, . 0.44 La Mora, " " " " 0.33 " @ 4.27. . Lime, 41 lbs . . @^^ct, . Charcoal, 180 bus., ... @ 4 " . Total cost of material, . ... 1.41 0.10 7.20 $13.04 Cost ot liabor per Ton of Iron* First keeper, . . . Second '* 2 helpers, @ 50 cents, . 4 tillers, ®S1)4 " . . $1.25 per day . 1.12>^ ■■ . 1.00 . 1.50 " Total for labor, .... $4.87J^ Superintendence, repairs, etc.. for 3 ton.s, or per ton, $1.62 2.60 Total cost per ton $17.16 Cost per Ton of Iron Rcflnca In Blooniary and Hammered Into Billets. Labor of melter per quintal, . $0.4.3% TH ", „„„!!'?!]"""?■"'*" , " ■ ,"■'"' —$0,735^, or per ton, . . $14.75 Fuel, OOOOlbs. charcoal, or 333 bus., @ 0.04, , .; . 13 33 Iron 1.26ions@ 17.16, ...!..'.'' Zliis Repairs, superintendence, and foreman 2.60 Total cost per ton of billets, .... Loss of iron, from 16 to 35 per cent, .... $52.03 The hammermen are paid for other pieces as follows : Shafts, per quintal «i oo Cart axles, " .!!!.! .60 Cost of One Ton of Puddled Bar Iron, Shingled by Steam Hammer.- -This estimate is based on the few weeks' work of the double puddling furnace. MINING LIFE-A MINE SHAFT IN MEXICO. -FROM LA VIE SOUTERRAINE " BY L. SIMONIN. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 217 1.06 tons of pig iron @ $17.16 '. Packing " " top of hill to the furnace . 7 cartloads of wood (388 cubic feet) © 76 cents . Labor, per ton Shingling, " EoughingroHH ' ... Engine-drivers, steam, etc Superintendence, repairs, and foremen .... Coat per ton of puddle bar .... Capacity of furnace, 2 to 2.6 tons per day $18.02 AS 5.25 3.60 .00 2.60. 1.18 2.50 $34.00 Cost of One Ton of Ordinary Bar Iron, Boiled from Billets. 1.016 tons of billets @ $62.03 $64.36 Packing from bio )mary to mill 1.04 Heating (labor) l.oo Heating (fuel, 6 cartloa'is wood, .334 cubic feet, @ 95 cents), 4.60 Boiling, straightening, etc. . . 5,00 Engine-driver and firemen . . ^68 f Fuel for engine , .50 1 Superintendence, repairs, and foremen, . .' 2!60 Total cost per ton of bars $69.58 Average rolled per day, 6 tons ; maximum, 7 tons. Cost of One Ton of Ordinary Bar Iron, Rolled from Puddle Bar. 1.045 tons puddle bar, @ $34.00 . Heating, rolling, etc. . . . $36.63 14.18 $49.71 From the notes of Mr. Michael O'Neil, an experienced puddler from Bethlehem, Pennsylvania, I gather the follow- ing, which is added as an interesting description of the condition of the works. He found the small puddling fur- nace choked up and that it had been used for melting brass. After making proper repairs, using the refractory stone of the country, which he was assured was " perfectly infusible," it was started. The charges were first 350 pounds of iron, and, finally, 450 pounds; the iron melted in three quarters of an hour, and each heat lasted about an hour and a half; here a heat usually takes from two to two and a quarter hours._ The iron was very dry, but with plenty of good dry wood it worked perfectly. Balls of only 80 to 100 pounds were made, and shingled under a small trip-hammer of two and a half inch face. After every two or three heats, delays occurred on account of portions of the roof and stack melt- ing down, which would have to be removed. Two entire new roofs of the " refractory " stone were built from Nov. 1st to Jan. 31st, when so much of the stack fell that it was deemed useless to repair it, and puddling was postponed for a time. The time from February until May was consumed in building the heating furnace. The refractory stone was again used, the roof was twelve inches thick, and would last about three weeks, single turn, but the chimney, after three days, melted so much as to entirely fill the take-up and stop operations ; it was then lined with fire-brick, and has worked well ever since. The charge was 800 to 1200 pounds, ac- cording to the size of the billets, and took three-quarters of an hour to heat. The double-puddling furnace was com- menced in May, and completed about the middle of August. Here numerous drawbacks again occurred; from the con- traction of the fire-brick ; the bridge wall fell, damaging a portion of the fire-chamber. The wood was so wet that even though dried in strips on hot-iron plates, it would scarcely burn, so that the grate-bars had to be altered to allow the addition of charcoal. The hands were green, and from their little knowledge previously gained at the small furnace, were very conceited and impertinent, considering them- selves teachers rather than learners. The charges were 900 pounds, and six heats were made in eleven hours; the iron hammered under the steam-hammer, worked well, and was of fair quality. Work continued about two weeks, when fifteen feet of the stack fell on account of the contraction of the fire-brick, a portion being constructed of key-brick ; the work was then stopped. Mr. O'Neil's contract expiring at this time he came home, after having taught them all he could in a year. It is much to be regretted that they did not learn more, or rather that they concluded that they had learned everything, and allowed him to return so soon. His salary, travelling expenses and maintenance, amounted to about $4000. One may judge of the cost of this experiment, which may be taken as a type of the cost and difliculty of introducing new things into this country. We refrain from estimating the cost per ton of the iron he did puddle, but will mention the quality of that puddled in the small single furnace. The usual Mexican test is to hammer a rod cold into a nail : this it stood perfectly. Specimens of this iron were exhibited at the Centennial Exhibition, and tested on RiShle's testing machine. The tensile strength per square inch was as follows : 63,880 pounds ; 54,060 pounds ; 54,700 pounds; 58,930 pounds ; 58,590 pounds. The qualities of this iron are magnificent. Even with the present rude manu- facture, it fully equals the special brands of European and American iron, manufactured with the greatest care and skill. Present Production of the Works. — Active opera- tions are carried on from the first of July to the first of May, ten months, or while the supply of water lasts. During this period the furnace is in blast about two hundred days, pro- ducing about 400 tons of pig iron and castings. The bloom- ary fires are active, off and on, all the time ; but from stop- pages on Sundays, Saint's days, and break-downs, they may be said to average three and a half weeks' actual work du- ring the month, or thirty-five weeks for the year. Each bloomary produces 3 tons of billets a week, with a loss of iron of about 25 per cent. These three bloomaries, during the year, produced 315 tons of billets and consumed 394 tons of pig iron. The loss of heating and rolling billets in- to bar iron is 4i per cent., leaving a yield of 301 tons of bar iron. Castings are made direct from the blast ftirnace at a cost for patterns and moulding of three-quarters of a cent, per pound, or $15 per ton ; whence we have — To 206 tons of casting @ $32.10, " 301 tons bar iron @ $06.59, Db. $6,62496 20;843.68 Ce. By 607 tons C ' 10 cts. per pound, or $200 per ton, . . . $101,400.00 Balance in favor, . $73,931.46 $101,400.00 . $101,400.00 Estimated Production of the Works when Com- pleted and in Good Running Order. — ^We will assume that all the production is from No. 2, the puddling furnaces and rolling mill, though for four months in the year, when there is an excess of water, furnace No. 1 and the bloomaries might be employed. Assuming furnace No. 2 to be worked under the same conditions as furnace No. 1. as regards ore, fuel, and labor, and that it produces ten tons of pig iron daily, the price of labor per ton will be reduced to $1.13, and it will then cost $16.03. Supposing the furnace in blast 200 days per year at 10 tons per day, — -2000 tons ; of this is sold as castings, 500 tons, leaving to be puddled and rolled in- to bar iron, 1500 tons. Assume that the mill works 250 days a year, and each double-puddling fiirnace only produces 2 tons per day, or 500 tons per annum, then three puddling furnaces (allow one more for accidents), and two reheating furnaces will do the work. We have then as the production of the works the following : To 600 tons castings @ $31.02, " 1376 tons bar iron, $^.71, Do. . $16,516.00 . 63.400.96 Ck. By 1876 tons @ 8 cts. pr pound or $160 pr ton, . . . $299,160.00 Balance in favor, . $216,244.04 $299,160.00 $299,160.00 Such is the condition of the manufacture of iron in this portion of Mexico, and it may be taken as a type of its manufacture in other parts of the republic. It is obvious that the works were badly located in the beginning, and it is a question whether it would not have been more judicious, instead of adding to their new improvements, to have built an entirely new concern at the Tacotes Mine, using steam- power entirely. While the large ftirnace is in full blast the daily transportation of 15 tons of ore from the Tacotes Mine, will require 210 mules and 35 mounted drivers, a day being allowed them to return. A wagon road will have to be con- structed: then 6 wagons, 72 mules, and 12 drivers will do the work. Still these works possess advantages that few en- joy, and were their resources properly developed, they would make iron cheaper than anywhere in the world. They have the richest and purest of ores, that produce an iron only sur- passed by the best from Sweden, abundance of cheap fuel, and superabundance of cheap labor. This last, however, is not an unalloyed blessing, for double the necessary number, 218 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. and a host of decrepit old foremen are employed, and the "compadre" system all-powerl'ully reigns. The market for the iron extends throughout the States of Colima, Michoa- can, Jalisco, and Zacatecas ; covering an area of more than 103,000 square miles of the richest and most enterprising part of the republic, and the works always have more orders than they can fill, at prices ranging from eight cents to ten cents per pound. There is a slight competition from foreign iron in the towns near the coast, but as this has paid exces- sive duties and costs of transportation, it can be easily ex- cluded by the really superior Tula iron, which can always undersell it. There are many Catalan forges in the neighborhood operated by Indians, who eke out a meagre existence by selling, at three cents per pound, the plow-shares, axes, and billets they produce, to the shop-keepers, who advance them food. This manufacture does not amount to a competition; but a well-organized lot of forges throughout the country, and portable steam-engine and hammer to make nail-rods, which would require but very small capital, could offer very serious competition. In the face of numerous difficulties, and after the expenditure of immense sums of money and indomitable energy and pluck, Tula has been established, and fully contributed its share to the advancement of the independence and civilization of the country. — A paper by J. P. Carson^ TroTisacticns Avierican Institute of Mining Engineers. THE FORMATION OF GOLD NUGGETS AND PLACER DEPOSITS. IN the year 1874 I made some examinations of the hydraulic mines of California, and was very much struck with the distribution of the gold throughout these deep placers, which were almost invariably poor on the surface, while gradually growing richer towards the bedrock. The constant presence of fossil wood, and the large quantity of organic matter contained even low down in these beds, was also remarkable. Not being satisfied with the various theories advanced to account for the formation of these deposits, I began an investigation early in the year 1879 on the conditions of solubility of gold and the causes of the loss in working gold ore in a large way. The re- searches which I have undertaken show that gold must be considered a soluble rather than an insoluble metal, and that the conditions of solution are such as will be found anywhere where gold is likely to occur, and the solution may take place even under the ordinary circumstances of surface drainage, and may be going on freely even where the presence of gold has never been suspected, and that there are causes enough in nature to produce the solution of the gold in sufficient quantities to account for all the pheno- mena of both the vein and placer formations. Ths general theory with regard to the formation of these placer deposits and nuggets has been that they were the result of the destruction of pre-existing vein-matter, which d-)es not accord with the facts as shown in the deep placer deposits. The gold in such case would be distributed in layers of unequal richness throughout the bed, the richness depending on the amount of deposition taking place at any one time, and would not occur in increasing richness from the top to the bottom. Further, every particle of gold of whatever size would have a rounded form, resulting from its abrasion against the harder rocks, which is not the case, the small as well as the large grains being of very irregular shape. It must also be borne in mind that most of the veins from which the gold is supposed to have come had a gangue of quartz. The gold is much softer than the rock; the quantity of precious metal contained in the vein would also be very much less than the rock, so that in the destruction of the formations there would be a very small amount of gild bein^ abraded and ground in a very large quantity of rock. It IS therefore likely that the coarse particles of gold, which is so much softer, would be comminuted at least as fine as the rook, and the smaller ones much finer than the rock, so that the difference in density would hardly tend to make a concentration by any subsequent action of wind or water, since the small particles of gold would tend to float away and thus prevent the concentration. Where the large particles are not in suiBcient quantity to make an extended natural concentration possible, and where the deposition of the sediment of the rivers is taking place, the result would be a very small quantity of almost impalpably fine gold, distributed uniformly in a very large amount of comminuted rock, or a production of clays resembling that used to make brick around Philadelphia, which contains very sm.all amounts of gold uniformly distributed through it. The structure, too, of each one of these particles would be the same as that of the rock with which it was abraded, and would be uniform. It is, however, well known that the grains of gold found in the placers are not uniform ; some of them are flattened with rounded edges, others rounded, and most are mammillary, all of which forms are not pro- bable, and hardly possible, under the conditions suggested. A nugget rounded like a water-worn pebble is a great ex- ception in any of the placer deposits. While the theory of vein destruction might in some cases account for the presence of gold in small quantities through- out the sands in grains large enough to admit of concen- tration, it could never account for the presence of large nuggets, which if they had been transported any distance by water would have lost their mammillnry form. Admitting the greater size and force of the ancient rivers, it is impos- sible to conceive that such large and irregularly shaped nuggets as those from Australia, Siberia, and from this country could ever have been so transported by water as to be entirely relieved of all their gangue, without having themselves assumed much more regular surfaces and a moie uniformly cobble-stone shape. On the other hand, slow ac- cumulations from solutions of varying strength and a depo- sition of unequal rapidity continued for a great length of time, accounts perfectly both for the form and for all the attendant phenomena. It is a fact, moreover, that very large masses such as these nuggets have never been found in veins, and are confined exclusively to placer deposits. The detrital theory accounts still less for the fact that in many of the deposits, especially where the bed-rock is soft and porous, the gold often enters it to the deplh of nearly a foot, and it is frequently the richest part of the deposit. In 1867 Mr. Wilkinson, of Australia, made a series of researches with reference to the effect of organic material on the deposition of gold. Sonstadt* also made a series of researches on the presence of gold in sea-water, and found it to be present in the ratio of about one grain to the ton of water, or about 51 for every 25 tons of water. Up to this time gold had always been considered as a very insoluble substance, because it was insoluble or very nearly so in most mineral acids. Ingenious metallurgical processes based on this insolubility have been invented, and are still in constant use ; but it does not follow that because gold is not affected by the ordinary acids it is therefore not soluble in other substances much more likely to be found in nature. The action of organic acids and of the alkalies were left out of view, and also the fact that (he solution of infinitesimal quantities may acquire great significanc e in a geological sense. Bischoff found that sulphide of gold is slightly soluble in meteoric waters, and much more soluble in a saturated solution of sulphuretted hydi'ogen in water. It has also been ascertained that chloride of gold in minute quantity in an alcoholic solution may remain in solution in the presence of proto-salts of iron, and that metallic gold is slightly soluble in solutions of (he per-salts of iron. But the theories founded on these discoveries supposed that gold was much less soluble than it really is, and (hat the solution required peculiar agencies and a set of circumstances not likely to occur everywhere. Its diffusion in sea-water was accounted for by the presence of chlorine, iodine, bromine, and of alkalies, and these conditions were not thought to be of general application in the explanation of the phenomena exhibited in mineral veins. Mr. Selwyn, the government geologist of Victoria, proposed a theory of solution to account for the formation of nuggets and placer deposits, suggesting that the gold was dissolve d by the waters which filtered through the soil, was carried in solution until it met some nucleus around whieh it could deposit, and was then precipitated, and that nuggets and • Chem. News, vol. x.wi, p. 15n ; Am. Chemist, vol. iii, p. 206. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 219 placer deposits were formed in this way. He does not, how- ever, state what he supposed the cause of the solution to be, and suggests that the gold is undoubtedly deposited on par- ticles of gold previously existing in the sands. These re- searches and theories, however, did not attract very much attention, and the old theory of the destruction of pre- existing veins was still adhered to. It is to be observed, however, that when gold does come from the destruction of veins the surfaces are rounded and worn smooth, as is shown in the large boulder of quartz containing gold detached from a vein in Venezuela, which is now in the collection of the School of Mines. This is in entire contradiction to the mammillary structure of the nuggets. If they had been transported far by water they would have been rounded and water-worn to much more regular surfaces. These worn surfaces would of course hg,ve been confined entirely to the outside of the nuggets, any cavities existing in the interior of the piece would have been in the condition in which they left the vein, and the edges of any crystals found there would have been sharp ; while in the nuggets the mammillary form exists even in the cavities of the interior, and even where crystals or the commencement of crystallization is observed, the edges of the crystal are very often blunted or rounded, showing both deposition and solution on these edges. It is aho to be noticed that the analyses of nearly all the samples of gold taken from veins show it to be much less pur§ than the nuggets found in the placer mines of the same district. If the gold of the placers had come from eroded rocks it would be of the same composition as that of the veins of the district in which it was found. It is well known that most of the gold nuggets are pure, while the gold of the veins is of a much lower grade, containing considerable quantities of silver and other foreign metals. Thus the Ballarat nuggets are 992.5 fine, the Australian nuggets vary from 960 to 966 ; those from veins in California from 875 to 885 ; in Tran- sylvania 600 with 399 of silver, and in Nevada there are some of 554 of gold and 429 of silver, and others only 333 of gold with 666 of silver. It must be remembered also that the violence of the old placer currents was very much greater than that of the ordinary streams of these days. The rivers were not only larger and deeper, but more rapid, and the results of their action would have been an almost complete comminution of the gold by its rubbing against the harder rocks. If this were the whole of the process and no further action had taken place, the gold would be found in the sands in this comminuted condition exclusively, and few if any of the par- ticles would have escaped the battering and pounding process incident to long exposure to rolling rocks ; and the deposita resulting from it would be found on the bed of the stream. Gold is, however, also found as nuggets, and in small par- ticles in rocks which have never been disturbed from their original 'conditions, but which have been decomposed to a considerable depth ; and it then has the same rounded form, occupying positions which make it evident that it must have been in situ, and never have undergone any abrasive action. The nugget found in 1828, in Cabarrus county, North Carolina, which weighed 37 pounds, and also the one found in the Valley of Tasohku, Targanka, near Miask, in Siberia, which weighed 96 pounds, were both found under such circumstances in a decomposed dioritic rock. In some few cases it has been deiinitely ascertained that the gold has been dissolved and precipitated in the decomposed rocks, for it has penetrated only just so far as the decompo- sition has allowed it, the yield in gold ceasing entirely at the point where the rock allowed no further filtration ; while in other rocks of a more porous nature in the same district the gold has penetrated to a depth not yet ascer- tained. Such a condition of things is not uncommon in the gold belts of the Southern States. Admitting that heavier masses of gold did exist in the veins disintegrated by the ancient rivers, gravity alone cannot account for the bottom deposits (which are often 300 feet frem the surface) being the richest. It would have required greater agitation of the earth than we have any evidence for believing ever took place to sift the coarse particles even through 50 feet depth of earth, and there is no indication that these deposits after they were once made were ever disturbed. It is un- doubtedly true that in shallow placers, where the bed-rock comes near the surface, the surface-soil in rich ; but it is the invariable rule that in deep placers the richest deposits are near the bed-rock, and at a great distance from the surface. There is a tradition, which is prevalent in all the gold mines of the South, and in those of some other districts, to the effect that gold grows, so that every few years the tails of the old mines are reworked, generally with profit; the quantity separated each time, according to the local tradi- tion, being in proportion to the length of time the material has remained undisturbed. As there is no opportunity for the gold in these sands to accumulate by gravity, the people of the region believe that gold grows like a plant. It would not, however, be rational to deny a theory so easily ex- plained as the formation of placers by the destruction of vein-matter without having some other to replace it. If the theory of the destruction of pre-existing veins is not tenable, we are bound to examine carefully whether there are causes in nature sufficient to account for solution, and what are the agencies that render the gold soluble. A series of experi- '' ments have been made on this subject lasting over many months, both synthetical and analytical, which seem to be of considerable importance in the study of the origin both of placer and vein phenomena. In this investigation most of the known salts of gold were prepared ; but as the chlo- ride is most easily made, this was made the basis of almost all the solutions. While making the chloride of gold for the solutions some sponge-gold was placed in a tube and heated in a current of chlorine-gas until the chloride of gold formed was entirely sublimed. It deposited at the upper part of the tube directly over the gold, and as the tube cooled, on the gold also, in fine transparent crystals half an inch long. This tube, when cool, was closed while full of chlo- rine, by substituting for the glass tubes glass rods, and the joints made tight with parafiine. In five months the crys- tals were melted into a mass, and in a year the whole of the chloride had been transformed into metallic gold with occa- sional nodules of chloride through it ; but the whole of it could be readily amalgamated. In order to ascertain the effect of different organic substances on salts of gold in solution, five portions of fifty cubic centimeters each of a solution containing 50 grams of chloride of gold were treated in different ways. The first was covered with a cubic centimeter of petroleum. In the second a quarter of a gram of cork was placed ; in the third a quarter of a gram of peat; in the fourth half a gram of leather; in the fifth half a gram of leaves. These solutions were put in a dark place, and were left for three months before examination. When the solution containing the petroleum was brought to the light the liquid had lost its color, and there were sus- pended in it a number of very fine and long crystals of gold, distributed nearly uniformly from the top to the bot- tom, and floating almost perpendicularly in the water. They had the appearance of the hexagonal crystals described by Professor Chester.* As soon as the liquid was agitated they fell to the bottom. The solutions containing the cork, leather, and leaves had also been rendered colorless, but the gold had entered into these substances, replacing the organic matter, so that they were pseudomorphed into gold. The solution in which the peat was placed was also colorless, but the gold was precipitated in the form of very small mam- millary masses, recalling perfectly the form of nuggets. To ascertain the degree of solubility of gold a quantity of pure spongy gold was prepared, and placed in a variety of solutions ; some of these were left exposed to the air; others were sealed at the ordinary temperature and pressure of the air for periods of from six to eight months ; others were ex- posed to heat and pressure under varying conditions in an air-bath, arranged in such away that the temperature could be kept constant for a number of hours at a time. Many of these last tubes burst after the liquid had acquired a tint. Of some of these the contents were entirely lost, of others a sufficient quantity of liquid was left to test for gold. Solu- tions of salt, sulphate of ammonia, chloride of ammonium, chloride and bromide of potassium in sealed tubes, after eight months gave no reaction. Heated for five hours at temperatures varying from 150° to 200° C, none of them, except the bromide of potassium, gave any reaction, and that reacted very strongly. In the sealed tubes the solution of salt, in which a few drops of nitric acid had been placed, * American Journal of Science, 3d series, vol. xvi., p. 32. 220 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. reacted for gold ; the iodide of potassium gave no immediate reaction, but when evaporated to dryness left a purple residue, soluble in bromine, which reacted for gold. Heated to a temperature of from 100° to 170° C, the iodide of potas- sium tube gave a reaction for gold not much stronger than the solution before heating. A solution of commercial nitrate of ammonia, which contained some chloride of ammonium as an impurity, kept in an open tube at the ordinary temperature and pressure for four and a half months, colored the solution bright yellow, and reacted strongly for gold. Two solutions were made each contain- ing five grams of nitrate of ammonia and half a gram of chloride of ammonium in 200 cubic centimeters of distilled water. One of the solutions was left in an open room and the other put in a dark place, and left for eleven days. At the end of that time both reacted strongly and with equal intensity for gold. Pure sponge- gold was then placed in the following solutions, contained in sealed tubes at the ordinary temperature and pressure for three months. Sul- phide of ammonium produced no change and no reaction. With sulphide of potassium a black precipitate was formed, and a strong reaction for gold was given by the liquid. Sulphide of sodium gave a black precipitate and a strong reaction for gold. Cyanide of potassium gave a yellow solution, a brown precipitate and smell of ammonia, and a strong reaction for gold. Chloride of magnesium, after nearly three months, gave a gelatinous pi-ecipitate, but no gold. Sulphate of soda, after the same length of time, pro- duced no change and no reaction. The sulphate of copper produced no change after two and a half months. Spongy gold was then put into solutions of the following substances, and heated for six and a half hours between 145° and 180° C. Sulphide of ammonium showed no apparent change, but reacted strongly for gold. The solution of sulphide of potassium attacked the glass strongly ; it looked greenish, and the liquid reacted for gold ; a black precipitate was formed, which was dissolved in bromine, and reacted for gold. The solution of sulphide of sodium acted slightly on the glass, and acquired a greenish tint ; a pink film was found oil the glass, and a slight precipitate was formed. This film reacted slightly, and the solution very strongly for gold ; there was not enough of the precipitate to examine. The solution of chloride of magnesium attacked the glass strongly, from which scales fell, but no gold was dissolved. The solution of sulphate of soda gave a cloudy, flooculent precipitate, but no reaction for gold. Commercial sulphuric acid and solutions of sulphate of potash, iron, and manganese gave white scales, but no reaction for gold. Solutions of sulphate and nitrate of soda gave no change and no reaction. The solution of permanganate of potash produced no reac- tion. In the solution of cyanide of potassium the brown preoipitite which was formed in the previous experiment dissolved, reducing the gold in the solution so that no gold was found dissolved. A mixture of nitrate of silver and sulphuric acid produced no change after two months. A mixture of the sulphates of potash, iron, manganese, and commercial sulphuric acid produced no change after two months. The permanganate of potash and sulphuric acid gave a black precipitate and colored the liquid slightly pink, but gave no gold. In order to test the effect of organic matter in solution, half a gram of chloride of gold was placed in two liters of Croton water in two large bottles. One of these was left exposed to the sunlight, and from this all the gold was pre- cipitated in less than a week ; the other was placed in a dark room and left there ; at the end of eight months a small amount of gold was precipitated. When solid organic matter was placed in the bottle the precipitation was quite rapid, and when the bottle was then brought into the sun- light all the gold was precipitated in about forty-eight hours. To ascertain the effect of different soils on weak gold solu- tions half a gram of chloride of gold was dissolved in ten liters of filtered Croton water, and made to pass continuously over the three mixtures given below arranged in glass fun- nels. The apparatus was so arranged that the liquid would flow drop by drop on the filters. No. 1 contained 30 grams pf quartz sand, No. 2, 20 grams of sand and 10 of soil. No. 3, 30 grams of magnetic iron sand and ten of quaj-tz sand. The filters were left exposed in a room where there was con- siderable dust arising, and where there was also the smoke from passing trains. In two days most of the gold had been precipitated in the filters, and Ihe water had a greenish look. Half a gram of chloride of gold was then dissolved in ten liters of distilled water, and filtered in the same way over thirty grams of quartz sand, a mixture of twenty of sand and ten of soil and a mixture of ten of sand and thirty of mag- netic sand. These filters were carefully covered to prevent any dust settling on them ; so that they were protected from all or- ganic matter except such as was contained in them. At the end of two months the clean sand and the mixture of magnetic and clean sand had reduced a small quantity of gold (a little more in the latter than the former) in concretionary shapes, which, owing to the rapidity of the action,-were not coherent, but could be crushed with the pressure of the finger. In the mixture with the soil the whole had been reduced, and was distributed through the sand as an impalpable powder, no indication of any concretionary form being observed. The attempt was then made to dissolve gold in a manner similar to that which was supposed to take place in nature. For this purpose filters were prepared of thirty grams each of clean quartz sand ; in one of these 1.161 grams of sponge-gold was placed and carefully mixed with the sand; in each of the other two half a gram of very fine gold was mixed. Over the sponge- gold ten liters of distilled water, containing thirty grams of comnipn salt and five grams of nitrate of soda, was made to filter constantly for two months, but no observable change took place. For the second solution six liters of Croton water were taken, in which nine grams of nitrate of am- monia and one gram of chloride of ammonium were dissolved. This was made to filter constantly for one month, but no gold was dissolved. For the last experi- ment one gram of nitrate of ammonia and nine grams of chloride of ammonium were used, but no gold was dis- solved. It was the intention to continue these filtrations for six months at a time, and with all the conditions of natural waters, but the difficulty of making the experiments con- tinuous decided the abandoment of them after a number of the other results had been obtained. The failure to dissolve gold in this short time does not prove that there is no action, as the other experiments show. An amount equal to a little less than that in sea-water might easily escape detectiou. In these experiments there is lacking the certainty that all the conditions necessary to success are fulfilled. It was found in one of the experiments, made in the early stages of the investigation, that the fine dust circulating in the room was sufficient to precipitate the gold from a dilute solution. All these researches had to be made in a room to which many persons had access, and it is quite possible that the organic matter precipitated the gold in these last experi ments as fast as it was dissolved ; for in the experiments for the production of the placers the organic matter did deposit the gold in the sand. It is greatly to be regretted that these experiments could not have been made in the complete absence of dust. In order to test the effect of organic life in such solutions, a plant was watered with a very weak solution of gold, but as is often the case in such experiments, the plant died of too much watering. In the anxiety to produce the kind of absorption by plants described by Durocher and Malaguti, the experiment was made a failure by too much enterprise. The examination of the ashes of the plant showed a small amount of gold, but most of the gold precipitated was in the soil around the plant, being thrown down there by the or- ganic material in the earth. This experiment indicates the origin of the thin plates of gold which are sometimes found in the grass roots of certain placer countries. It will be observed that in almost all the cases where gold was dis- solved, chlorine and some nitrogenous substances were found together in the presence of alkaline watei-s. These same conditions are favorable also to the separation and solution of silica. It has been proven by these experiments that the alkaline sulphides act on gold as well as the substances enumerated above, and it is quite easy to imagine the con- ditions under which the gold, already in solution in exces- sively small quantities, coming in contact either with solid or liquid organic matter, may precipitate all the metal. In Grass Valley, California, I have known of gold being thrown down in the filter of a Plattner's vat by the organic matter contained in the very impure water used there for the THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 221 solution of gold rendered soluble by the action of the chlor- ine. The filter was full of metallic gold, and there was no means of ascertaining how much of it had been lost. Several ounces of a brown deposit were taken from it which was nearly pure gold. This cause of deposition, and of loss in large operations, has, I believe, been entirely overlooked. It is quite easy to explain the presence of gold in alluvial sands by the action of sunlight alone on the waters contain- ing the gold in solution, and to account for the g;old on the bed-rock, by the solutions coming in contact with organic or mineral matter, such as the lignites, fossil woods, or the pyrites, which is everywhere found in deep placer deposits. The waters not being able to pass the bed-rock, remain there in contact with the organic matter until all the gold is pre- cipitated. . The same would not be true of the decomposing rocks, or of slaty strata coming up to the bottom of the deposit at an angle. The deposition would be rendered much more rapid by any electrical currents that might pass through the strata. In all of these phenomena, time, which in the operations of nature is unlimited, is one of the chief factors. In any laboratory experiment the limit of time must of necessity be short, but there is no such limit in na- ture. That tills solution goes on on a large scale there is every reason to suppose. That this may be connected with vein phenomena the California nugget shows, since in this case both the formation of the quartz and of the nuggets are evi- dently posterior to that of the blue gravel. It will be seen from these reactions that many of the conditions favorable to the solution of gold are also favorable for the solution of silica, and that, as Professor Kerr shows,* the rocks may be actually decomposed and the gold deposited, forming in this way shallow deposits called veins, in which the gold disap- pears entirely beyond a few feet. Nothing is more likely than that the infiltration of water through rocks undergoing decomposition, of which there are enormous quantities in the gold region, should take up the alkalies, and, slowly passing over the gold, should dissolve it. The composition of these alkaline salts would depend on the nature of the rock through which the waters passed, but it is more than likely that they would be mixtures of many of the compounds likely to attack the gold and carry it off in solution, and not alkaline carbonates and sulphides alone, although these would be likely not only to be present, but to be powerful agents in carrying on the work of solution. In some cases the decay of the rocks is so rapid that the pheno- mena may, as it were, be caught in the act. The agencies producing the decomposition of the rock, penetrating it be- yond the limits of local drainage, and carrying ofi" the solu- ble parts, leave the debris in a condition easily penetrated by the infiltrating solutions, and ready to receive any deposit which these solutions may for any cause leave behind them. A source of these deposits in the deep placers of California is the trap which sometimes covers the old river deposits to a depth of 150 feet. In the deep placers these waters would be capable of holding the gold in solution until they niet some decomposing element, such as particles of metallic com- pounds, native metals or organic matter, which is always present in large quantities in the deep placers. If a nucleus of metal were present the gold would be precipitated on it, and if none were present then the gold would come down as a powder, each grain of which, however small, would serve as a nucleus for future aggregations. Admitting the solutions to be even more dilute than the sea-water near the coast of England, yet unlimited time and quantity would evidently •produce these efiects, redistributing the gold. Iodine, which is a solvent of gold, is found in many of the plants of the gold region, and in considerable quantities of sea-water. Sonstadtt supposed that gold is kept in solution in the water of the sea by the slow rate at which iodate of calcium is decomposed in the se.a-water of the temperate zones, but sug- gests that where the decomposition of the iodate, whose presence is necessary to keep the small amount of gold in solution, is very rapid as in hot countries, the liberation ot the nascent iodine, and consequent rapid solution of the gold, and subsequent precipitation by organic matter is quite sufficient to account for the great richness of the gold deposits of tropical countries. « Transactions, American Institute of Mining Engmeers,yol. 8, p. 462. •f-Chem. News, vol. xxvi, p. 161. Am. Chemist, vol. ui, p, 208. It seems, by the experiments already cited, to be clearly proved that gold is not only not insoluble, but that in nature it is constantly being dissolved out of the rocks and placers, the waters of filtration dissolving out of the rocks in their passage through them all the materials necessary for the solution of the gold, and carrying it in very dilute solutions until it meets some substance that precipitate it. It seems to be proved that when the action is slow and localized, we have the phenomena of placers with large or small nuggets and irregularly shaped pieces, and when the action is rapid we find the gold in small particles distributed through the sands. We have reason to suppose that these phenomena are now taking place in such a way as to concentrate the gold by infiltration and precipitation in the tailings of mines which cannot be concentrated by mechanical means. Some of these phenomena can be accounted for by the sim- ple action of sunlight, but others, mostly those of the deep placer deposits, have their cause in the large amount of organic material contained in them. The use of a charcoal filter to precipitate the gold from relatively concentrated solutions in one of the recently invented metallurgical pro- cesses, is a very suggestive idea of the means nature may have used on an immense scale on very attenuated solutions. The same conditions which cause the solution of gold in certain cases cause also the solution of silica. This explains the phenomenon of mammillary and apparently water-worn nuggets (like that from Placer county) encased in quartz, while both the gold and the quartz have been found posterior to the blue gravel. It also explains the presence of " putty stones," as the soft pieces of decomposed rock constantly found in placer deposits are called. Many of the causes which produce the precipitation of the gold would also produce the reduction of soluble sulphates to insoluble sulphides, the gold being detained in the mass. This would account for the almost constant presence of gold in pyrites, or the occurrence of some of the copper ores of Texas in the form of trees, the ore containing both gold and silver, and also for the constant presence of gold in the iron ores of Brazil, the so-called Jacotinga, and also for the presence of trees transformed into iron ore carrying gold in some of our Western States. In many of the deep placers of California the heavy cap of basalt is quite sufficient to account for many of the phenomena which occur not only beneath but around it. The fact that gold has not as yet been found iu potable waters may be simply due to the extreme difficulty attendant on its detection in minute quantity. It is more than likely that many of the geological, phenomena on a large scale were produced by very dilute solutions or very slight forces acting for a very long time. How far the elec- trical currents of the earth may have been a factor in these phenomena it is impossible to surmise. It is, however, more than probable that they were the result, not of one alone, but of all the causes mentioned, and perhaps many others which as yet have escaped our attention. No single agent is so powerful a solvent of gold as chlorine. Very few drainage-waters are free from some compound of it, and no soil is without the nitrogenous materials necessary to set the chlorine fi-ee, and therefore capable of attacking the gold and rendering it soluble. The experiments show that a trace of it is quite sufficient to dissolve enough gold to color a solution so that the eye can detect it after a few weeks' exposure. In the nugget of Placer county it would have been impossible for either the gold or the silica to have got into its position except by solution. The iron of the blue gravel in this case seems to have been the first cause of pre- cipitation, and subsequently the gold itself was an active agent in increasing its own weight. The general absence of crystals and of their rounded edges, where they are found, can be easily accounted for by the fact of the rapid action possible in the placers. The readiness of filtration through the easily permeated gravel causes the gold to precipitate so rapidly that there is no time for any but a mammillary deposit; while in vein deposits the extreme slowness of the deposition allows the gold to assume a crystalline shape. When we consider that two-thirds of all the gold produced in the world comes from alluvial deposits it seems difficult to account for its presence in the sands in any other way than by solution. ■^A paper hy T. ISjXeatan, Ph. D., Bchijol of Minea, Tranmctiona Amerienn IntsUtixU of Mining Bngvneers, 222 THE MINES, MINERS AND MINING INTEREST OF THE UNITED STATES. THE GEOGRAPHICAL DISTRIBUTION OF MINING DISTRICTS IN THE UNITED STATES. PROFESSOR W. P. BLAKE, in a note to his Cata- logue of California Minerals, pointed out that the mining districts of the Pacific slope are arranged in parallel zones, following the prevailing direction of the mountain ranges. This interesting generalization has been more fully illustrated and connected with the geologi- cal history of the country by Mr. Clarence King, who sums up the observed phenomena as follows: "The Pacific coast ranges upon the west carry quicksilver, tin, and chromic iron. The next belt is that of the Sierra Nevada and Oregon Cascades, which, upon their west slope, bear two zones, a foot-hill chain of copper mines, and a middle line of gold deposits. These gold veins and the resultant placer mines extend far into Alaska, characterized by the occurrence of gold in quartz, by a small amount of that metal which is entangled in iron sulphurets, and by occupying splits in the upturned metamorphic strata of the Jurassic age. Lying to the east of this zone, along the east base of the Sierras, and stretching southward into Mexico, is a chain of silver mines, containing comparatively little base metal, and frequently included in volcanic rocks. Through Middle Mexico, Ari- zona, Middle Nevada, and Central Idaho is another line of silver mines, mineralized with complicated association of the base metals, and more often occurring in older rocks. Through New Mexico, Utah, and Western Montana lies another zone of argentiferous galena lodes. To the east, again, the New Mexico, Colorado, Wyoming, and Montana gold belt is an extremely well-defined and continuous chain of deposits." These seven longitudinal zones or chains of mineral de- posits must not, in my opinion, be held to constitute a com- plete classification. The belts of the Coast Range and the west slope of the Sierra are well defined, both geologically and topographically ; but it is not so easy to separate into distinct groups the occurrences of gold and silver east of the Sierra. For instance, the gold of Eastern Oregon, Idaho, and Western Montana, together with such occurrences in Nevada as those of the Silver Peak and New Pass districts, and numerous instances of sporadic occurrence of particular ores of silver or argentiferous base metals, cannot be brought within the classification above given. Either more zones must be recognized,, or a greater mineralogical variety must be acknowledged in those already laid down. The" latter alternative is, I think, the more reasonable. According to the principles set forth in a discussion of mineral deposits in my report for 1870,* it appears evident that the agencies which affect the general constitution of geological formation are far wider in their operation than those which cause the formation of fissures; and that the causes influencing the filling of fissures are still more local in their peculiarities than those which form the fissures themselves. Thus, of the area covered by rocks of a given epoch, more or less uniform in lithological character, only a small portion may have been exposed to conditions allowing deposits of useful min- erals, even when such deposits are contemporaneous, as in the case of coal. Still more limited is the field for the for- mation of fissures ; but it must be freely confessed that in the case before us, the corrugation of half the continent into parallel mountain ranges offers good grounds for the expectation of vast longitudinal systems of fissures. When we come to consider the filling of these fissures, however, it is evident that the mineralogical character of the vein-ma- terial must vary, to some extent, as to the gangue, but to a still greater extent as to the nature of the ores. Even single mines, in the course of extensive exploitation, have pro- duced ores diflfering as widely as do those of the different zones enumerated by Mr. King. I am, in fact, strongly in- clined to consider freedom from base metals, for instance a peculiarity due in many cases to secondary processes, and not to be relied upon as characteristic for single veins even, to say nothing of whole groups, districts, and continental » Statistics of Minea and Mining in the States and Territories west of the Rocky Mountains, by E. W. Baymond, U. S. Gommis- sioner of Mining Statistics. zones. Nevertheless, the generalizations of Professor Blake and Mr. King on this subject are highly interesting and valuable. The criticism here made is not in opposition to their views so much as in qualification of a possible rash application on the part of the general public. The zonal parallelism does exist, though in a somewhat irregular way; and it is clearly referable, as these writers have shown, to the structural features of the country, the leading feature of which is the longitudinal trend of the mountain ranges. Subordinate to this trend (or, more strictly, resulting from the same causes as produced it) appear the predominant longitudinal strike of the great outcrops of sedimentary rocks, the longitudinal axis of granite outbursts, and final- ly, the longitudinal vents of lava overflows and the arrange- ment of volcanoes in similar lines. It is evident that in crossing the country from east to west we traverse a series of different formations, while, by following routes parallel with the main mountain ranges, we travel upon the continu- ous outcrops of the same general age. Mr. King distinguishes in the history of the entire Cordillera two periods of disturb- ance which have been accompanied by the rending of mountain chains and the ejection of igneous rocks. Such periods would atford the conditions of solfataric action, thermal springs, and the generation of acid gases and me- tallic sublimates and solutions, and thus favor the formation of metalliferous deposits. The first of these periods, he says, culminated in the Jurassic, produced over the entire system a profound disturbance, and is, in all probability, the da- ting-point of a large class of lodes. To the second, or terti- ary period he assigns the mineral veins which traver.se the early volcanic rocks. The expression j" culminated in the Jurassic," merely refers, no doubt, to the fact that the cre- taceous strata of California repose unconformably upon the upturned and metamorphosed Jurassic slates, having been themselves neither tilted nor highly metamorphosed. Per- haps it is well to remember, however, that the cretaceous is a weak point in the California series, at least, as determined by leading fossils ; and perhaps the results of more com- plete stratigraphical surveys will indicate that there are gaps of no little significance, dynamically and chronologi- cally, in this part of the geological record. At all events, the period of the folding of the Sierra Nevada (presumably that of the formation of many metalliferous deposits) was in some sense post-Jurassic, rather than Jurassic ; and proba- bly this is the meaning of Mr. King, who speaks of it in an- other passage as " late Jurassic. '' The lodes which are referred to this period are of two types: first, those wholly inclosed in the granites, the outburst of which accompa- nanied the upheaval of the earlier stratified group, or in metamorphosed Jurassic and sub- Jurassic strata; secondly, those which occupy planes of stratification or jointure, thus following in general the dip and strike of the country rock, while they present in other respects the indication of fis- sure-veins. In the veins of Reese River granite are exam- ples of the first type ; many gold veins of California, the Humboldt mines, etc., are given as illustrations of the second. The White Pine district, the mineral deposits of which are said to be inclosed conformably between strata of Devonian limestone, is declared to be " a prominent example of the groups comprised wholly within the ancient rocks. " We have hitherto supposed the strata immediately overly- ing the argentiferous limestone at White Pine to be deep- water Carboniferous ; but their Devonian character seems to be demonstrated by Mr. Arnold Hague.* More practically important is the assignment of these deposits to the earlier period of geological disturbance. Mr. King appears here to include in one group all the white Pine deposits, the "Base Range "as well as " Treasury Hill ; " yet the striking distinc- tion in mineralogical character is worthy of regard. The deposits of Treasure Hill are notably free from base metals ; .ind it seems to me that in their present form they must be due to a secondary action, which has concentrated and recombined the metallic elements of older deposits. It should be added, however, that although the chlorides of Treasure Hill are as pure as those of Lander Hill, they do not ap- pear, like the latter, to yield in depth to such silver ores as characterize the fissure veins of Reese River district— ruby » See Volume on Mining Industrv of the United States Geologi- cal Exploration of the Fortieth Parallel. THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. 223 silver for instance. Nor are they fissure-veins, so far as we can now decide. To tlie Tertiary period of orographical disturbance are referred the volcanic overflows and the veins wholly or part- ly inclosed in volcanic rocks. Under this head Mr. King classes many important veins of Mexico, several of those which border the Colorado River, in the United States, and, in general, that zone which lies along the eastern base of the Sierra Nevada. The Comstock lode is adduced as- the most prominent example of this type, and the Owyhee dis- trict in Idaho, is also referred to it, because, although in granite, it presents a series of volcanic dikes, which appear to prove, by the manner of their intersections with the quartz lodes, that the latter are of Tertiary origin. It will be seen that although the extent and number of the depos- its of this class are inferior to those of the earlier period, they include some of the most brilliant instances in the history of mining. As Mr. King, however, points out, many of the veins which are wholly inclosed in the older rocks may nevertheless be due to this later period of disturbance. Nor does he ignore the bearing of his thought on his deter- mination of the earlier period as Jurassic. He confesses that in more recent strata, formed from debris of Jurassic rocks, ore-bearing pebbles have not been found; but he regards this fact as a piece of negative evidence merely. The distribution of mineral deposits east of the Rocky Mountains follows somewhat different laws. Here we have but one longitudinal range, that of the Alleghanies, which is accompanied by a gold-bearing zone of irregular extent and value. In the Southern States the strata flanking this range present a remarkable variety of mineral deposits. On the eastern slope of the Rocky Mountains, again, occurs what may perhaps be denominated a zone or longitudinal series of coal-fields. But between these mountain boundaries the geological formations of the country cluster, as it were, around centres or basins. We have such a group in Michigan, another in the Middle States, and a third in the Southwest. The deposits of the different metals, ores, and useful min- erals, in the country east of the Rocky Mountains, vary widely in age. The ores of gold, copper, and iron, in the pre-Sil- urian schists of the south ; the galena and cobalt ores of the Southwest, and the copper ores of Lake Superior, in the lower Silurian rocks ; the argillaceous iron ores of New York, and other States west of New York, in the Upper Silurian, and the salines of the same group ; the bitumen, salt, coal and iron ores of the Subcarboniferous ; the coal and iron of the Carboniferous ; the coal, copper, and barytes of the Ttiassic ; the lignites of the Cretaceous, and the fossil phosphates of the Tertiary period, are instances which may serve to show how great is this variety. It is not within the province of this paper to discuss the mineral deposits of the Mississippi Basin, the Appalachian Chain, or the Atlantic Coast. I shall content myself with brief mention of two points. The first is the greater relative age of the metalli- ferous deposits as compared with those of the inland basin and the Pacific slope. On this side the period of greatest activity in such formations was over before it began in the West. The great gold and silver deposits beyond the Rocky Mountains appear to be post-Devonian, post-Jurassic, and even Tertiary in their origin. The vast volcanic activity which affected so wide an area in California, Oregon, Wash- ington, Idaho, and Nevada, is not represented in the East. The other point is the peculiar relative position of our coal and iron deposits. This was eloquently described by Mr. Abram S. Hewitt, United States Commissioner to the Paris Exposition, in his admirable review of the iron and steel industry of the world. I cannot do better than quote his forcible words : " The position of the Coal-Measures of the United States suggests the idea of a giganti-c bowl filled with treasure, the outer rim of which skirts along the Atlantic to the Gulf of Mexico, and thence, returning by the plains which lie at the eastern base of the Rocky Mountains, passes by the great lakes to the place of beginning, on the borders of Pennsyl- vania and New York. The rim of the basin is filled with exhaustless stores of iron ore of every variety, and of the best quality. In seeking the natural channels of water communication, whether on the north, east, south, or west, the coal must cut this metalliferous rim ; and, in its turn, the iron ore may be carried back to the coal, to be used in conjunction with the carboniferous ores, which are quite as abundant in the United States as they are in England, but hitherto have been left unwrought, in consequence of the cheaper rate of procuring the richer ores from the rim of the basin. Along the Atlantic slope, in the highland range, from the borders of the Hudson River to the State of Georgia, a distance of one thousand miles, is found the great magnetic range, traversing seven entire States in its length and course. Parallel with this, in the great limestone valley which lies along the margin of the coal-field, are the brown hematites, in such quantities at some points, especially in Virginia, Tennessee, and Alabama, as to fairly stagger the imagination. And, finally, in the coal-basin is a stratum of red fossiliferous ore, beginning in a comparatively thin seam in the State of New York, and terminating in the State of Alabama in a bed 15 feet in thickness, over wliich the horsemen may ride for more than one hundred miles. Beneath this bed, but still above water-level, are to be found the coal-seams, ex- posed upon mountain sides, whose flanks are covered with magnificent timber, available either for mining purposes or the manufacture of charcoal iron. Passing westward, in Arkansas and Missouri, is reached that wonderfiil range of red oxide of iron, which, in mountains rising hundreds of feet above the surface, or in beds beneath the soil, cul- minates at Lake Superior in deposits of ore which excite the wonder of all beholders ; and returning thence to the Atlantic slope, in the Adirondacks of New York, is a vast undeveloped region watered by rivers whose beds are of iron, and traversed by mountains whose foundations are laid upon the same material. In and among the coal-beds themselves are found scattered deposits of hematite and fossiliferous ores, which, by their proximity to the coal, have inaugurated the iron industry of our day. Upon these vast treasures the world may draw for its supply for centuries to come ; and with these the inquirer may rest contented, without further question — for all the coal of the rest of the world might be deposited wi+hin this iron rim, and its square miles would not occupy one-quarter of the coal area of the United States." This vivid description rests upon a geographical rather than a geological grouping. But it is none the less inti- mately connected with the underlying geological facts. Its strongest application is, however, economical. If any ma- terial thing may stand as the type of force, it is coal, the deposits of which may well be called vast storehouses of power — the product of solar activity through uncounted years — laid up for the use of man ; and iron, on the other hand, may symbolize the inert, dead matter, awaiting the touch of power to wake it into eificient life. These are prime elements in our universe of industry. Take them away and our present civilization is annihilated. Put them together in the hand of an intelligent and mighty nation, and that nation could recall the world from the chaos of barbarism. But they need each other, and it is in the wonderful com- bination of both, as well as the exhaustless abundance of each, that America finds sure promise of enduring power. Thus East and West bear witness of our great inheritance of natural wealth. Every period of geological change has been laid under contribution to endow with rich legacies some portion of our land. Our territory epitomizes the processes of all time, and their useful results to man. Divided, yet in a stronger sense united, by mountain chains and mighty rivers, our diversified mineral resources may figuratively re- present, as I firmly believe they will literally help to secure and maintain our characteristic national life, a vast commu- nity of communities, incapable alike of dissolution and of centralization ; one, by mutual needs and affections, as the continent is one ; many, by multiform industries and forms of life, as the members of the continent are many. — A paper by R. W. Raymond, Ph. D., Transaciwns American InatUvte of Mining Engineers. SILVER IN THE SEDIMENTARY ROCKS. WIDESPREAD interest has recently been de- veloped in the subject of the occurrence of silver ores in sandstones and related sedimen- tary rocks, by the success which has attended the developments of the famous Silver Reef mines in South- 224 THE MINES, MINERS AND MINING INTERESTS OF THE UNITED STATES. em Utah. These mines ship regularly between $70,000 and $80,000 worth of bullion per month, most of which is de- rived from ores taken from two or three strata of sandstone, a rock, which, like most sedimentary rocks, is continuous over many square miles of territory. This certainly must seem passing strange to the Pacific coast miner, who has been accustomed to consider that if there is any place where ores of the precious metals are not to be sought it is in the sandstones and related sedimentary rocks. The question is at once suggested, If precious metal is found in the sand- stone of Utah, may it not be found in the sandstone of other districts? Has the prospector, who has with such untiring energy explored the most inaccessible recesses of our highest mountain chains in search of silver and gold, entirely over- looked a source of wealth which may be hidden in the monotonous sedimentary rocks of our plains and valleys ? Finally, is there any practical consideration which guides the prospector which can tell him that in one locality he would seek fruitlessly for gold or silver, while in another he may hope to find it? I think it can be shown that there is. To the miner these are intensely practical considerations. If argentiferous and auriferous ores are to be sought indis- criminately in all of our sedimentary rocks, then there is scarcely an acre of the surface of the dry land but must be investigated to prove either the presence or absence of ore. I am the more desirous of presenting a few thoughts on this subject for two reasons. On the one hand, prospectors have more than once recently sent sedimentary material to the geological department of the university, with a query a9 to whether ore deposits of the precious metals might be sought in them. On the other hand, one of the leading geologists of the country. Professor Newberry, of Columbia College, New York, has announced a theory of the formation of the silver sandstone deposits at Silver Reef which, pushed to its legitimate conclusion, would necessitate the investigation, as I said before, of almost every acre of sedimentary rock ia„ every country before the miner could be satisfied that gold or silver did not exist in it. Now, I am aware that geology is far from being an exact science ; furthermore, that that particular portion of it which deals with the genesis of ore deposits is one of the least understood. It is truly aston- ishing, when one reflects, that some of the fundamental principles of an industry which yearly adds hundreds of millions of dollars to the wealth of the country should be so little understood. However, while it is true that we know comparatively little about the genesis of ore deposits, still we are not altogether in the dirk. In almost every mining district there are certain empirical laws which guide the miner in that particular district, but which are totally in- applicable, or at least not necessarily applicable, to any other district. The laws of the occurrence of gold and silver, which are of general application, are exceedingly few. The typical mineral vein, the " true fissure vein," as it is very properly called, is very simple in its structure and geologi- cal relations. It consists, essentially, of a fracture or fissure of a rock, varying from a fraction of an inch to many feet in width, of moderate length, rarely more than two or three miles, and of indefinite depth. This fissure becomes subse- quently filled from side to side with ore and veinstone, probably introduced in the form of solutions from below, very little obvious connection between the neighboring rocks and the contents of the fissure is observed. The bulk of the ore is confined almost entirely between the two walls of the fissure. It is often noticed, however, that the ore wanders out laterally into the wall rocks in suflicient quan- tities to render them worth mining, and, to a much less extent than this, even to very considerable distances. This takes place, too, under circumstances where the conditions would seem to be exceedingly unfavorable, as in solid granite and similar rocks. Special attention is called to this lateral impregnation of the country rocks, as it has an important bearing upon the genesis of the ore in the sedi- mentary deposits. The essential characteristics of fissure veins are, then, indefinite extension in depth, very moderate width (or thickness) and length, and subsequent formation to the inclosing rock. The structure and geological relations of sedimentary rocks are in many respects quite the reverse of these. Take sandstone as-a typical instance. It generally exists in the form of a widely extended horizontal deposit, covering many, often hundreds, of square miles, and varying in thickness from a few feet to thousands of feet. Other stratified rock often lie both above and below it, and it is always younger than the underlying and older than the overlying material. Suppose such a body of rock to be impregnated with silver ore, more or less, throughout its whole extent ; you at once comprehend the vast difference in mode ojf occurrence between such an ore body and the typical mineral vein previously described. Such in general is the mode of oc- currence of the ore at Silver Reef, Utah. I am indebted to Professor Newberry and to Mr. Rolker, for several years and until quite lately superintendent of the Stormont mine, for the facts concerning these mines; particularly to the latter gentleman, who has recently communicated a paper to the American Institute of Mining Engineers, upon the Leeds district mines, which was abstracted from the San Francisco Mining and Scientific Press, December 25, 1880. I have not been able to consult Mr. Rolker's original paper, but have been compelled to content myself with the above- mentioned abstract. I will not present a detailed descrip- , tion of the entire district and deposit, but will suggest only such points as bear more immediately upon the question to be discussed, namely. How did the silver get into the sand- stone ? -Let it be remarked right here, however, that no one can pretend to furnish a complete solution of the problem in all of its details without a most minute and accurate knowledge of every detail of structure and relation presented by the deposit in place. Such a knowledge can rarely be acquired at second hand, nor can it be attained even by investigation in the field until the mines have been much more thor- oughly opened than is the case at the present time. These mines have beenprospectedtoaslightdepth this year (1877). The Comstock lode has beeji pierced to a vertical depth of over 3,000 feet, and scientific men are to-day unable to demonstrate precisely how the ore came into its present position, and where it came from. The temptation to hasty generalization from insufl[icient data is, perhaps, nowhere so great as in geology. Instances without number can be cited where theorists have fallen into error by drawing hasty con- clusions from too few or imperfectly observed facts. I would prefer altogether to await the accumulation of observed facts and let them explain themselves, as they always will sooner or later, if properly recorded and collated. However, the average modern investigator in almost every department of science has found it necessary to have constantly in mind what he calls a " working hypothesis " concerning the sub- ject under investigation, which is to him the most- rational of the many explanations of the phenomena in question which suggest themselves. Since we must have these hypo- theses, it behooves us (particularly where practical considera- tion of great moment are involved, as in mining) to see that our hypotheses rigidly conform to observed facts, and that, as soon as this is not the case, we discard them for less ob- jectionable ones. It is in this spirit that we approach the present question, fully aware that at thi-s distance from the field, and with the few data in hand, a complete solution is impossible, but be- lieving that at least a rational choice from the two or three proposed hypotheses can be made. To return, then, from this digression to the facts of the case. The Silver Reef mines are situated iu extreme Southern Utah. The sand- stone containing the silver ore is of Triassic age, as recently determined by Professor Newberrv. They are not to any extent metamorphosfed from their primitive condition. There are two silver-bearing sandstone strata or "reefs," as they are called, overlying each other but separated bv beds of clay shale. The ore, which .above water line is mostly horn silver, and below it silver glance, is not homogeneously dis- tributed through the entire rock, but is largely concentrated in ore-channols, lying one above another in the different beds. Organic remains of plants, partially or wholly con- verted into ore, are very plentiful ; they make up, perh