taiV 0f %t\xi |ork l^^o. 58. IN" ASSEMBLY, February 27, 1863. MEMORIAL OF THE CHAMBER OF COMMERCE OF NEW YORK. RELATIVE TO THE DEFENCES OF THE HARBOR OF SAID CITY. Chamber of Commerce of the State of New York, ) New York, February 23, 1863. I Hon. T. C. Callicot, Speaker of the Assembly of the State of JVew York: Sir — In accordance with the instructions of this Chamber, I have the honor to transmit to you the memorial of the Chamber, on the insufficiency of the present defences of the harbor of this city, and^o request that you will lay it before the Assembly of the State for their notice and consideration. I have the honor to be, respectfully, Your obedient serv't, JOHN AUSTIN STEVENS, Jr., Secretary. CHAMBER OF COMMERCE OF THE STATE OF NEW YORK. To the Hon, the Legislature of the State of JVew York, in Senate and Jissembly convened: The memorial of the Chamber of Commerce of the State of New York, respectfully represents : That the defences of the harbor of New York are notoriously inadequate to the protection of the vast interests and wealth of a city which is at once the terminus of the great avenues of [Assem, No, 58,] 1 2 [Assembly western ' and northern trade, the storehouse of national and foreign products, the financial centre of American commerce, and the metropolis of a continent. Of the wisdom and necessity of making this great gateway of the State and nation absolutely impregnable, there can be no doubt. Until quite recently, but little effort had been made to place the existing fortifications in a state of efficiency, but your memo- rialists believe that under the supervision of that distinguished and energetic officer, native of this State, Major General Wool, all is being done that is at present practicable in this direction. It is of great importance that there should be no delay in the completion of the fortifications at Sandy Hook, which command the anchorage of the outer bay and the main channel of approach to the city, and your memorialists suggest that the State govern- ment may, with great propriety and in accordance with precedent, make appropriations for that purpose, and look for repayment at a future day from the General government. Other minor fortifications might be added, which would keep any vessels which succeeded in passing the main works under continuous fire. The report of Major J. G. Barnard (now Briga- dier General, commanding the defences of Washington), made to the Secretary of War in 1859, on the '* Dangers and Defences of New York,'^ and printed at the order of this Chamber, a copy of which is annexed to this memorial, points out the dangers and the remedy. In addition to these fixed works, your memorialists are of opinion further, that some floating defences, either iron-clad gun boats, rams, or batteries, armed with guns of the heaviest calibre, should at once be built. The present condition of the East river approach renders such kind of defence imperatively necessary. The exigencies of the naval service, in a war of such unex- ampled magnitude, render a dependence upon it, for home pro- tection, uncertain and vague. It is called upon to defend or obstruct a coast line of thousands of miles in extent. At times our harbor swarms with gun boats and ships of war, at others, hardly a solitary vessel is left for our defence. This Chamber has made such representations on this subject to the Navy Department as will, it is hoped, secure more certain protection, but it is not safe to rely on the heavily taxed resources of the General government. No. 58.] If, in time of peace, we have neglected the wise warning to prepare for war, at least, now in war let us not omit to provide against the contingency of foreign interference. This State and this city should be prepared for all the eventualities and acci- dents of war, whether of sudden and temporary attack, or of matured and declared invasion. To be thus prepared, the State and city of New York should, in the opinion of this Chamber, at once construct and own float- ing defences, in the possession of which there would be certainty and security. Your memorialists believe that it is only necessary to present this view of the subject, as the result of their deliberate and matured opinion, to secure early and effective action on the part of the Legislature and the approval of the Chief Executive of this great State. New York, February 21, 1863. A. A. LOW, 2d Vice President. JOHN AUSTIN STEVENS, Jr., Secretary. THE DANGERS AND DEFENCES OF NEW YORK. Addressed to the Hon. J. B. Floyd, Secretary of War, by Maj» J. G. Barnard, Corps of Engineers, U. S. A. PART L In a paper prepared nearly a year ago, but which from circum- stances unnecessary here to explain, has not yet gone out of my possession, I used the following language, which will now answer my purpose as a brief sketch of what I consider to be the ** dan- gers " to which New York is exposed, and as an introduction to what I shall say as to the defences required. ** * * * It seems to me proper to allude to the entire change in the nature of the problem to be considered in the de- fence of this city, since the system under which the existing works have been constructed, was adopted — or rather, since the defence of New York, as a part of the general system of coast defence, was decided upon by the Board of Engineers of 1816.'^ As late as 1840, I find the Chief Engineer, in describing the then existing works at the Narrows, (viz : the present Fort Ham- ilton, Fort Lafayette, on the Long Island side, and the old Forts Tompkins and Richmond, and Batteries Hudson and Morton, on ^ ? 4 [Assembly ^ Staten Island, reporting that (when these old works shall have been repaired) 'with the Narrows thus defended, and the works near the city in perfect order. New York might be regarded as pretty well protected against an attack by water through this passage.' And more explicitly he elswhere states, with regard to repairs of the old works just named, on Staten Island, 'nothing further, indeed, being contemplated for this position, except the construction of a small redoubt on a commanding hill a little to the southwest.' When it is borne in mind that since the quite recent date of the report from which these quotations are taken (1840), there has been constructed a new Fort Richmond, of three or four times the size of the old work — that a large new work in place of Fort Tompkins has been commenced — that a new water- battery, nearly equal to Fort Richmond, has been-recommended and planned by the present Board of Engineers — in fact, that an enormous increase of works has been decided to be necessary, over those thus cited by the Chief Engineer as sufficient to render New York ' pretty well protected by water through this passage,' it seems to me evident that the problem involved in this ' protec- tion ' has changed its character." " These remarks are not made as a criticism upon former Boards, or the Chief Engineer, but to show that a defensive sys- tem for New York such as is 7iow demanded, has never been con- templated as a whole, and that the problem, as it now presents itself, is a modified and enlarged one." " It has become so, owing to the immense developments which have been exhibited in the means of maritime attack within the last few years, and also to the rapid growth of the city itself, and of the nation of which it has become the commercial metro- polis. Indeed, the experience which the nation had had when the defensive system of 1816 was adopted, was not such as could prompt a system adapted to our present circumstances. While formidable invasions of our territory had been made by land, the small works then in existence on Governor's and Bedlow's islands, had proved sufficient to protect the city ; and such efforts as were made elsewhere against our maritime places, proved how weak were the powers of attack of that day against fortifications — how little was required to secure our seaports and maritime cities. While the means of maritime attack have of late years assumed a magnitude and formidableness not dreamed of when our defensive system was planned, and our country has so No. 58] 5 increased in population, wealth and military resources, that no enemy can hope to make any impression by an invasion of our territory — our great maritime places like New York, have, on the f other hand, increased in even greater proportion, in everything that could make them objects of attack." " The works deemed adequate in former years for the defence of New York, could not, therefore, in the nature of things, be adequate at the present day." " The recent war of England and France against Russia, may illustrate my meaning; for it has taught us what to expect were either of. these nations to wage war against the United States." "No invasion of territory, no attempt at territorial conquest was made, or thought of ; for it was well foreseen that no decisive results would- flow from such means. The war consisted exclu- sively in attacks upon maritime places — great seaports — seats of commercial and naval power. Such places by their vast import- ance to the well-being and prosperity of a nation — -by the large populations and immense amount of wealth concentrated in them, and by their exposure to maritime attack, offer themselves at once as points at which the most decisive results may be produced. Crondstadt, Sebastopol, Sweaborg, Kinburn, Odessa, Kertch, Petropauloski, and other places of less note, were in succession or simultaneously objects of attack , while such as the first named became, indeed, the true seats of war." Around Sebastopol assailed and assailant gathered their re- sources, on the result of the arduous struggle may be said to have turned the issue of the war. Had it not been so decided there, Cronstadt would have been the next field of combat — for which, indeed, the Allies had made the most enormous prepara- tions." " Is it not certain that in future all war of maritime powers against the United States, will take a similar course ? All ter- ritoral invasion being out of the question, it is against our great seaports and strategic points of coast defence — such as New York, New Orleans, and San FranciscO' — pre-eminently New York — that an enemy will concentrate his efforts. Against these he will prepare such immense armaments — against these he will call into existence special agencies of attack — which (unless met by an inexpugnable defensive system) shall insure success." The mere defence of the city against ordinary fleets is no longer the question ; but through the defensive works to he here 6 [Assembly erected, the nation is to measure its strength against the most lavish use of the resources of a great maritime power, aided by all that modern science and mechanical ingenuity in creating or inventing means of attack, can bring against them; in short, in fortifying New York, we are really preparing the battle-field on which the is- sue of future momentous contests is to be decided.^' I most respectfully invite your attention to the last paragraph here quoted. No language that I could now use, would convey a stronger idea of my profound sense of the real dangers of New York. If the conclusion that I arrive at is well founded, it de- mands the instantaneous attention of the War Department, and of Congress. If this conclusion is well founded, then there is no topic connected with the question of national defence which will have a stronger bearing upon these constantly recurring issues with foreign nations, in which we see the war-cloud gathering, which may yet, ere long, burst upon us, than this same topic of the ** defence of New York." I will say more specifically, that on the alternative whether, on the one hand. New York is open to the attack of a maritime force, or liable to be sacked by the sudden dash of an army landed in the vicinity ; or, on the other, is so securely defended by water and land, that it may hurl the invader back to the ocean — will depend greatly the issue of peace or war. It is a species of folly approaching to insanity, for a nation so constantly holding up to its neighbors the momentous issue of war — so unavoidably liable to constant entanglements with the most powerful nations on the face of the earth, to leave this great commercial metropolis liable, the very day almost that war is declared, to the most fearful blow. It is estimated that the great fire of 1835 destroyed $17,000,000 of property. Yet its ravages were confined to a very limited erea. How, in money or in words, could we estimate the loss of property, the destruction of military and naval armaments and stores, the paralysis of the nation's commerce, the shock upon our warlike power, the disgrace upon our scutcheon, which would or might result from a successful attack, and a more or less pro- longed occupation of the port or harbor ? I trust, sir, I have succeeded in impressing you with a vivid idea of the " dangers " to which New York is exposed, and of the importance of its perfect defence. If so, then I am sure you will concur with me in the opinion that, not as a local question con- No. 58.] 7 cerning New York merely, nor the State of New York, nor any sectional group of States, but as a great national question, one in which the issues of peace and war, of national triumph or na- tional disgrace are involved, the prompt organization of a com- plete and adequate system of defences for New York, is de- manded. To say what this-defensive system should be, will, perhaps, be more difficult. I have said before, that the subject as a whole^ had not yet been discussed in the new lights in which recent years have presented it. I could, therefore, on many points give only individual opinions, and, of course, these must be very general in their nature. But even in attempting to give such opinions, I am met by the embarrasssing fact that the shadow of doubt has been recently thrown over even the elementary principles which have generally governed our defensive works, by high authority ; even yourself, sir, seem to have found reason to entertain such doubts. Far be it from me to desire to.withhold from the freest discus- sion anything connected with this great question. I have assum- ed the problem of the defence of New York to be a modified and enlarged one. I am willing if you choose, sir, that it should be discussed even in its simplest elements ; and, still further, as every species of battery, armed with such artillery as we now have, whether it^be the simple earthen parapet, or the massive castel- lated structure, lifting its numerous guns, tier upon tier, are con- fessedly inadequate (without auxiliary aid of some kind) to the perfect sealing up of a channel against the rapid passage of a hos- tile fleet, I shall be the first to hail the inventor, be he one whose "functions are confined to the most elevated branch of military science," or to the workshop of the mechanic, who will provide us with something which will do this. In attempting to discuss the merits of our coast defences, one is met at the very outset by the opposing characters of the cri- ticisms by which they have been assailed. It is now scarce twenty years since the entire system was subjected to severe animadver- sion from the, then, highest military authority of the government, from one whose public services, military and civil, and high posi- tion and character, gave great weight to his strictures.* It was maintained by the authority to whom I refer ; " 1. That, for the defence of the coast, the chief reliance should be on the navy." * See Senate Pocument No. 293^ page 1, 24th Congress, 1st session, vol. 4. 8 [Assembly " 2. That, in preference to fortifications, floating batteries should be introduced wherever they can be used." "3. That we are not in danger from large expeditions, and, consequently," "4. That the system of the Board of Engineers comprises works which are unnecessarily large for the purposes they have to fulfill." It was owing to these strictures that the House of Represen- tatives, by resolutions of May 9th, 1840, called upon the War Department " to lay before this House as soon as practicable, a report of a full and connected system of national defence," &c. The subject was referred by the War Department to a board of officers of the army and navy, among whom was the present Chief Engineer. The report of that board (see Doc. 206, H. R. 26th Congress, 1st session), fully endorsed by the Secretary of War, Mr. Poinsett, is universally admitted to be one of the most able and comprehensive expositions of the whole subject of coast defence extant, and, generally^ as a complete refutation of the strictures upon our actual system. This discussion has become now somewhat out of date. I al- lude to it, however, to call your attention to the two last strictures there made against our system, viz : " That we are not in danger from large expeditions, and, con- sequently," " That the system of the Board of Engineers comprises works which are unnecessarily large for the purposes they have to ful- fill ;" and to ask you to bear in mind that the engineers are now censured (whether deservedly or not is not the question) for having been for the last twenty years carrying on its constructions under this very assumption, that we are not ''in danger Irom large ex- peditions." I do not discuss, at present, the accuracy of this proposition twenty years ago, or whether if true then^ it has ceased to be so now. The report which I have mentioned may be said to have silenced opposition for the next ten years ; but it will (as I have said before) be considered out of date, at present, owing to the rapid developments since made in means of maritime attacks. I therefore pass to more recent animadversions upon the system. In 1851 the following resolutions were adopted by the House of Representatives : No. 58.] 9 *'lst. Resohed, That the Secretary of War be directed to report to this House, the second Monday in December next, on the subject of the land defences of the country, in which he will review the general system adopted after the w^ar with Great Britain, and since pursued, in regard to the permanent fortifica- tions then deemed necessary for the national defence ; and that he report, whether the general plan may not be now essentially modified, by reducing the number of works proposed to be erected, and by abandoning some of the forts now in progress of construction." *' 2d. Resolved, That the Secretary of War also report the number of fortifications which have been built, including those nearly completed under the general system, the number in pro- gress of construction, and the number not yet commenced, but proposed to be erected, and in such form as will conveniently show the States and Territories in which the several forts are situated, or to be located ; when the work was commenced ; when completed, or expected to be finished ; the number and calibre of the guns mounted or to be mounted ; the estimated cost, the amount expended, and the sums yet required to finish or construct, as the case may be, each work and the Secre- tary of War, to carry them into effect, addressed the following queries to several distinguished officers of the army and navy :* "1st. To^what extent, if any, ought the present system of for- tifications for the protection of our sea-board to be modified in consequence of the application of steam to vessels of war, the invention or improvement of projectiles, or other changes that have taken place since it was adopted in the year 1816 ?" " 2d. What reliance could be placed on vessels of war, or of commerce, floating batteries, gun-boats, and other temporary substitutes for permanent fortifications ?" " 3d. Is it necessary or expedient to continue the system of fortifications on the nothern lakes?" The character of the strictures with which the defensive sys- tem was then assailed, may be judged from the resolutions of Congress, and from the queries proposed. Essentially they were the same which we are constantly hearing now, the same which * These oflScers were Commodore Stewart, Commodore Morris, Commodore Perry, Com- mader Cunningham, Commader Dnpont, Lieutenant Lanman, Lieutenant Maury, Lieu- tenant Dahlgren, of the Navy ; General Totten, Colonel Thayer, Colonel De Russy, Major Chase, Major Delafield, of the Army. [Assem. No. 58.j g 10 [Assembly forever will be heard to the end of time, upon all established systems, viz : that it was behind the times, that railroads, tele- graphs, increase of population, war-steamers, and steam ocean- navigation generally, and Big- Guns, in particular, had render- ed the system of defence quite obsolete. As to the replies of these several army and navy officers, it may be briefly stated that the defensive system was sustained by Commodores Stewart and Morris, Commanders Cunningham and Dupont, Lieutenants Lanman and (with qualifications) Dalhgren, of the navy, and by General Totten, Colonel De Russy, and Major Delafield of the Engineers.* That it was opposed or cen- sured as requiring modifications by Commodore Perry and Lieu- tenant Maury of the navy, and Major Chase of the Engineers. Now, it must be borne in mind that all the recent " changes which are now supposed to have rendered our maritime defensive works obsolete, or " old fogyish," viz. : increase of population, great concentration of wealth, population, and national resources in our great cities, railroads, telegraphs, ocean steam-navigation, and the consequent facility of bringing upon our coasts suddenly large armies in steam fleets, improvements in calibre, and carac- ter of seacoast and naval ordnance, horizontal shell-firing, &c., were then well known, and, indeed, formed the foundation of the strictures of that day. What has happened since, has been but the realization of what was then foreseen. If there is any exception to the broad statement just made, it is found in the recent improvement in small arms; but this is a matter which I conceive to have very little bearing on the topic in hand. A few quotations, .therefore, from the replies of tho? officers who opposed or demanded modifications in the system, will be interesting for colnparison with the views of objectors of the present day. Commotdore Peray says, " and besides, we have the experience of history to show that extensive military works are alike des- tructive of the prosperity and the liberties of the people, saying nothing of the enormous cost of construction, and the keeping them in condition for service. I may instance the fortresses of Spain, of Portugal, and of the former republics of Genoa and Yenice, as gigantic works, now of little use, and looked upon by the voyager only as monuments of the extravagance and peculat- * Colonel Ttayer did not respond ; his opinions, however, >vcre weU known. No. 58.J 11 ing spirit which, at the time of their erection, characterized the people of those governments." Experience, moreover, shows that while the fortifications of San Juan de Ulloa at Yera Cruz, the Moro of Havana, the Castle protecting the harbor of Carthagena upon the coast of Columbia, the Venetian fortress of Xapoli de Romania in Greece, the Castle of St. Elino in Malta, and many others of similar extent and character, are considered by some impregnable, they command only a circuit embraced within the range of their guns, and can- not in any manner prevent a landing of the en*emy upon the coast beyond the extent of such range : in a word, these works are useful only to command the entrances of the ports which they were intended to defend, ^^nd to cover, with their guns, vessels anchoring in their immediate vicinity. The celebrated fortress of Gibraltar neither commands the passage of the Straits, nor the anchorage on the Spanish side of the bay of that name. They are, in truth, like chained monsters, harmless beyond the reach of their manacles ; not so with steam batteries : they have the means of locomotion, and their power can be made effective at any point upon the coast capable of being reached by an enemy's vessel." " Of all the coasts of Europe, that of Great Britain is the least provided with fortifications; and yet her soil has not been trodden by a successful enemy since the conquest ; solely pro- tecting he/ military and naval arsenals by perfect and well- garrisoned works. She depends mainly for defence of her coast upon her navy, and the warlike spirit of her yeomanry ; and the very absence of fortified works prevents a deceitful reliance upon such defences, and keeps alive the more gallant and more certain dependence upon their own personal prowess." "And thus it should be with us. Man to man, the Americans are at least equal to any other race : and they are fully capable of driving back to their ships or capuring any number of troops that might have the termity to land upon our soil." Lieutenant Maury says : " Now were it possible for an enemy with the greatest army that ever was led into battle by the greatest captain, to take the country by surprise, and to land at Long Island Sound, or in Lynn Haven bay, and to be disem- barking hfs last piece of artillery before he was discovered, these railroads, the power of steam, with the aid of lightning, would enable the governmeiit, before he could reach the heights of li [Assembly Brooklyn, or the outskirts of Norfolk, to have there in waiting, and ready to receive him and beat him back into the sea, a force two to one greater than his, however strong." "Suppose that in 1847 there had been in active operation, be- tween Vera Cruz and the city of Mexico, a line of magnetic tele- graph, and such a railroad as is the Erie road of New York, — Can it be supposed that our generals, being cognizant of the facts, would have so much as entertained the idta of landing there as they did, and laying siege to the town?" " All the world knows where our railroads are, and that the Country is protected from military surprise and invasion from the sea, by a net- work of telegraphic wires ; the mere knowledge of the fact that Norfolk and New York can bring to their defence such 4-esources, will forever prevent the thought in the mind of an enemy of landing in force at Lynn Haven Bay, or on Long Island." *' Those, roads, therefore, render a siege to any of the works of defence before those places, out of the question." "To lay siege to any place along our sea-front involves not only the disembarking of an army, but the landing also of the siege train. This requires time." " From the time that the head of our invading column jumped out of the boats up to their waists in the water, at Vera Cruz, till General Scott Was ready to send his summons to the city, was thirteen days, and it was four days more before his heavy artil- lery drew overtures from the besieged, — total, seventeen days." "Imagine an army, the best equipped, it may be, the world eVer sawj that should attempt to beleaguer one of our strong- holds for seventeen days 1 Within that time, we could bring against him by railroads and steamboats, millions of the freemen which this cdUntry evel* holds in reserve to light its battles. It might be Boston before which this imaginary army is supposed to sit down in imaginary siege ; or it may be New York, Phila- delphia, Norfolk, CharlestoUj or New Orleans, — it is immaterial where. In less thian half the Yera Cruz time, we could throw millions of men into any one of these places, and subsist them, in the meantime, by a daily market-train of cars and steamboats catering for them in the abundant markets of the Mississippi Val- ley." " It is impossible that any army, however brave, spirited, and daring, should over think of invading a country like this, and at; No. 58.] 13 tacking us upon our own ground, when we have under our com- mand such powers of concentration, and such force in reserve as twenty millions of freemen, the electric telegraph, the railroad car, the locomotive, and the steamboat." . And again, alluding to an invasion of Washington : "Now, is it not obvious, supposing the country to be in a reasonable state of preparation at the commencement of war — supposing this much — is it not obvious, by sending telegraphic messages, and using the powers of steam for conveyance, the American general might sight down here, in Washington, and at daylight the next morning commence an attack upon that enemy, both in front and in rear, with almost any amount of force, consisting of regulars, volun- teers, and militia, that can be named ? Retreat for such a foe would be out of the question, and re-embarkation an impossi- bility. " Therefore, so far as the system of 1816 was intended to defend the country from invasion along the Atlantic sea-board, steam, railroads, and the telegraph, have rendered it as effete as did the invention of fire-arms the defences which the military science of that age had erected against the shafts of the archer.'- "Suppose the system of 1816 to have been completed ; that the fortifications therein contemplated had all been built, provis- ioned, eqijipped, and garrisoned. Now, saving only those which protect the large cities from the guns of men-of-war, suppose the alternative should be presented to our military men, whether they would undertake to defend the country from invasion with such a complete system of fortifications, but without the assistance of railroads, steamers, and telegraph ; or with the assistance of rail- roads, steamers, and telegraph, but without the aid of fortifica- tions. " I suppose, could such an alternative be submitted to every of- ficer of the army, from the oldest down to the youngest, that there would be but one answer, and that would be, * Down with the forts, and give us the railroad, the locomotive, the steamboat, and the telegraph.' " But, Lieutenant Maury does not dispense entirely with forts; he says further, *' It is chiefly to keep such ships {i. e., ships of war) yVom burning our cities and havens within reach of their broadsides, that we want forts and castles." Exactly so. It is just for that, and if he had said " burning our 14 [Assembly cities and occupying our havens," (using the term forts and castles" technically,) I might almost say, only that^ that we want them. But, as we have seen before, the cry " Down with the forts, and give us the railroad, the locomotive, the steamboat, and the tele- graph," does not mean "Down with all forts," but only such as we do not want to protect our " cities and havens ;" a very im- portant qualification certainly. Furthermore, he says, " The forts already completed, or well advanced towards completion, are believed to be sufficient for this." At the date this was written, the great port of the Pa- cific, San Francisco, had not a fort even begun ; the great port and commercial metropolis of the Atlantic, New York, had not on its great avenue of approach, the Narrows, works at all capa- ble (see the opinion of Dahlgren, a brother officer of the navy, and one of the very ablest officers of the navy, printed in juxta- position to Lieutenant Maury's) of protecting this great city from "burning" by the broadsides.or curved fire of ships of war. But this is but a specimen of the accuracy and soundness of criticism with which our defensive system has usually been assailed. Lieutenant Maury, however, argues that " if one gun, in open battery on the shore, * whether mounted on a tower or not,' be superior to ' one or two' ships of war, surely our seaport towns of second and third rate importance (the italics are mine) may safe- ly rely upon open batteries on the beach to protect them from * British' or any other ' men-of-war.' " I make one more citation from Lieutenant Maury, that you may compare with opinions more recently expressed : ' The fortifications of the coast,' says the board of army offi- cers, whose able report of 1840 quieted the public mind, and fastened for ten years longer upon the country the eff'ete system of 1816, ' The fortifications of the coast,' say they, ' inusthQ com- petent to the double task of interdicting the passage of ships and resisting land attacks — two distinct and independent qualities. The first demands merely an array in suitable numbers^ and in proper proportions^ of heavy guns, covered by parapets, proof against shot and shells.'' " ** Now, I propose to show that the railroads, and the means of locomotion in this country, sufficiently defend our fortifications from land attacks ; and that, consequently, the principal requisite henceforward in a system of fortifications for the coast, is merely No. 58.] 15 an array, in suitable numbers and proper proportions, of heavy guns along the beach, to cover the approaches of ships from sea to seaport towns." And particularly I call your attention to his recommendation, " That no further expenses be incurred for pre- paring our fortifications along the Atlantic sea-board to with- stand sieges by landJ^ Having given, I think, a fair view of the arguments of the ob- jecting naval officers, I now proceed to give a few citations from Major Chase's response. As an engineer officer of rank, connected with the present system of coast defence from its initiation, his objections, or demand for modifications, deserve careful consid- eration. After giving a history of the rise and progress of the present system of coast-defence, referring to the experience of our last war with Great Britain, reviewing the " new and important ele- ments in the national defence and security w^hich have been rap- idly, almost magically, developed in the last thirty -five years, such as the increase of population, the progress of improvement in agriculture, manufactures and commerce, and in facile lines of intercommunication," he says : "In view, then, of all these things, and especially of the new elements — moral, political, and physical — claimed to have been developed, and to have greatly increased the power of the United States, and which must be considered in relation to the future ar- rangement of the national defence^ the undersigned thinks that the general plan adopted thirty-five years ago should be essentially modified, by reducing the number and size of the works proposed to be constructed, and by abandoning some of the defences now in progress of construction, or which are about to be constructed under existing appropriations made by Congress." " The undersigned is also of the opinion that the best interests of the country require that the subject of modification should be submitted to aboard, composed of artillery and engineer officers, and some eminent civilians; that no new work should be com- menced, even if it has been appropriated for by Congress ; and that no appropriation should be made by Congress for the com- pletion and repairs of existing works, until the whole subject of the national defence has been considered and reported upon by the said board." And he further advances the opinion, "Suf- ficient has been said to show that railways and the electric tele- graph contribute largely to the national defence ; th^t the works 16 [Assembly covering' our large sea-ports, and other important points, placed in connection with the railways and telegraph, if they were now to be constructed, might be much reduced in size and cost, if not in number ; that the facility with which these works could be re- lieved in" case of an attempted siege, would have rendered it only necessary for them to be made secure against a coup-de-main.^' " Under these views of the subject, it is at once perceived that, whilst the extension and invention of railways (and the electric telegraph) do not supersede, they greatly diminish the necessity of adding to the number and cost of the fortifications on the sea- board ; or, in other words, that the future prosecution of the system of defence by permanent fortifications, should be on a very reduced scale in comparison with the magnificent one adopted thirty-five years ago." And, in relation to the influence of steam-navigation and im- provements in artillery, he says : " The navigation of the ocean by steam, and the application of steam to vessels of war, have certainly added to the facilities of naval operations in making attacks and transporting troops. But such operations are necessarily confined to short lines, like those between France and England, in the Mediterranean, or on the lakes between Canada and the United States." " Attacks by steamers can only be formidable when they are numerous, and filled with troops destined for a grand attack ; but when they are thus filled with troops, munitions of war, pro- visions, armament, and their regular crews, little room is left for the fuel necessary to propel them to the scene of action and in retreat. Such steamers cannot be propelled either conveniently or rapidly until the propelling power can be produced at a less outlay for fuel. At the rate supposed to be the maximum of speed of war steamers, lines of operations over one thousand miles (five hundred in advance and five hundred in retreat) cannot be occupied advantageously, or with the efficiency necessary to a great movement of strategic or direct attack. Numerous trans- ports would be necessary to convey supplies of coal to conve- nient places on the coast, where depots for the same would have to be established and defended at great cost, for they would be constantly in danger of attack by sea and land by enterprising assailants. Besides, the great loads of men, munitions, arma- ments, provisions, and fuel, that war and transport steamers would be obliged tQ carry, u^ultiply the d£i,ng§rs of navigation." No. 58.] n Certainly, steamers could make sudden and brief attempts to enter harbors and destroy towns ; but fast-sailing ships, with fa- vorable winds, could do the same if this kind of marauding and piratical warfare was carried on by any Christian nation calling itself civilized, and if not opposed by the same machines of war as those used by the enemy and by acts of retaliation." " Such attempts might be successful in attack and retreat if made in the night, even if the harbor was strongly fortified, if the fortifications were unaided by rafts and hulks lying across the channels." *' But a demonstration on a large scale against the important ports and arsenals, for the purpose of taking possession and levying contributions, requires considerable land forces, even against such points as were not defended by batteries ; for at such points, in time of war, earth erections would be made and easily supplied with cannon of heavy calibre, that would do great damage, by direct and vertical cannonade, to the enemy's vessels and forces afloat, after they had entered the harbor, and proba- bly compel them to leave it, and force them to select a more distant point for the initiative of attack." If the enemy, strong in ships and soldiers, could be driven from Boston by the erection of some redoubts in the course of one night, it is hardly to be supposed that he would attempt to recapture i^e position, or to attack any other position similarly situated." " Any such demonstration at the present day would be checked by the means just enumerated, and be met on its flanks and in front by the mobile forces rallied by the telegraph to the point of attack." " The improvement in artillery, as regards size and efiiciency, has been, of late years, very great ; but it inures more to the benefit of the defence than the attack. In the same way that, if steam, applied to ships of war, aff'ords any advantages to the at- tack, steam, applied on railways, combined with the electric tele- graph, affords greater advantages to the defence, by reason of the greater facility with which forces may be moved by the lat- ter means." From all which it may be safely asserted, that the navigation of the ocean by steam, the application of steam to vessels of war, and recent improvements in artillery and other military inven- tions, do not exhibit the attack of forts on the sea-board superior [Assem. No. 58.] 3 18 [Assembly to the defence, when those forts are connected with railways, and are brought within succor of the surrounding population ; nor do they render additions to the present fortifications in number, size or cost, in any wise necessary. But, on the contrary, the im- provement in artillery, if those fortifications had now to be built, would enable their plans to be reduced one-half'm size, and the armament one-fourth in amount." In what precedes, I believe, I have given a fair and complete view of the "objections " to the system of coast defence, as they were urged scarcely eight years ago. I do not pretend that our views of the problem of coast defence should be exactly the same that they were at that date ; for I think, in relation to some of our great sea-ports at least, the developments of the recent war of the Allies against Russia, has made the problem quite a new one. But I do affirm that that war exhibited but a development, or realization rather, of the changes which form the basis of these criticisms of 1851. Let us, therefore, sum up these objec- tions of 1851. Our forts need no longer be so large; " forts and castles " may even be dispensed with, and a few powerful guns, "in open bat- teries," substituted. The idea of strength against land attack (or siege) is by one critic scouted. "Now, were it possible for an enemy, with the greatest army that ever was led into battle, by the greatest captain, to take the country by surprise, and to land at Long Island Sound or in Lynn Haven Bay, and to be dis- embarking his last piece of artillery before he was discovered — these railroads, the power of steam, with the aid of lightning, would enable the government, before he could reach the heights of Brooklyn, or the outskirts of Norfolk, to have there in wait- ing, and ready to receive him, and beat him back into the sea, a force two to one greater than his, however strong." While another thinks that " the facility with which these works could be relieved, in case of an attempted siege, would have rendered it only necessary for them to be made secure against a coup de main,^^ And his opinions, as to "demonstrations on a large scale, against the important ports and arsenals," will be found in the passage already quoted. I pass now from " objections" of 1851 to " objections" of 1858. These are found in a "Letter," addressed to yourself, Sir, by Lieutenant Morton, of the Engineers, which has been published, and which, as it appears to have not only had much influence No. 58.] 19 upon your own views, but on the minds of the public, deserves much more than a passing notice. They are summed up by the author in the following language : " The first objection I offer to the existing system is with respect to the size. It adopts, even in localities where there is plenty of room,* diflferent sorts of masonry casemated castles, of the smallest area that will hold the number of guns required, in from two to five tiers; the guns firing through embrasures in the scarp wall, which is exposed to its base, or nearly so, to the fire of flotillas. This remark applies to the sea fronts of all our sea-coast forts of importance. (Those not on this principle are small, and situated in localities where one sort of work will answer as well as another.) The works referred to have, in some cases, land fronts : that is, fronts which do not bear on the approaches of ships, or on anchorage ground. These are arranged sometimes on the bastion system, sometimes on the German ; but in all cases are contracted and weak,f owing to the dijQ&cultyJ of joining strong land fronts to casemated sea fronts, of small development." " The small area of these works will prevent them, in the first place, from holding any more ammunition and stores than they will need if exposed to protracted bombardment. As to a siege, those which are out of the reach of help, such as Key West, Fort Point,#8hip Island and Pensacola, will, probably, be short of supplies very soon, and be reduced from that cause. There will be, in no case, the interior space required to accommodate the magazines, &c., which must be located and protected, at the points I have specified, and where the plan of fortification is still to be decided upon." *' A second disadvantage springing from the contracted area is, that there is not enough room on the terrepleins to spare for temporary bombproofs, traverses, 3ning exceeding 10 or 11 square feet; and that the model embrasure of 1855 practically reduces the opening to that of the throat, which is hut square feet — an object not much larger than the muzzle of a large gun. The security of the gun- ners behind this embrasure is as great, probably, as it is practi- cable to give anywhere;"^ it is probably greater than in an open barbette battery. The question of the capacity — actual and possible — of ma- sonry -casemated castles" to resist the fire of a hostile armament, need not be pursued further. When we bear in mind that the hostile " floating batteries," of whatever description, will them- selves be exposed to the most formidable projectiles that can be * A simple expedient, advocated by one of our officers, and partially practiced in Eu- rope, to raise the embrasure so that all embrasure shot would pass over the heads of the gunners (as in the barbette battery), would, in a great degree, do away with the danger of the " embrasure shot" of all kinds, and with the necessity of grape -proof *• shutters," ap- plied to the new embrasure . [Assem. No. 58.] 6 42 [Assembly thrown from shore batteries — that when they choose to come to ^' close quarters" to attempt to breach, their " embrasures'' pre- sent openings (see Paper No. 6, before referred to) through which deluges of grape, canister, and musket balls can be poured upon the gunners;* and consider what experience has so far shown, and reason has taught us, with regard to the casemate, we need not be under apprehension that our casemated works will be bat- tered down; nor doubt that they will, as they did in Russia, answer the important purposes for which they were designed. It only remains to show the necessity of such works. It, in general, costs much less to place a gun behind an earthen para- pet than to build a masonry structure covered with bomb-proof arches, in which to mount it.f All authorities agree that an open barbette battery (GrivePs very forcible admission has been quo- ted), on a low site, and to which vessels can approach within 300 or 400 yards, is utterly inadmissible. It may safely be said that, in nine cases out of ten, the sites which furnish the efficient raking and cross fires upon the channels, are exactly of this character ; and indeed it very often happens that there are no other s.\ When such sites are found, it rarely happens that they aiford room for sufficient number of guns in open batteries. § Hence the necessity of putting them tier above tier, which involves, of course, the casemated structure. Such works furnishing from their lower tier a low, rasing fire, and (if of several tiers) a plunging fire from their barbettes, ofier as favorable emplace- ments for guns as can be contrived, and afford to their gunners a * Grivel seems to think that, as to embrasure shot, the floating and land battery are on equal terms; but the embrasure of the floating structure cannot be made as small as that of the casemate; nor can the expedient of shutters," or of raising tae embrasures above the heads of the men, be resorted to. t The discrepancy in cost is not, however, by any means, what this naked statement would make it appear. A gun behind an open parapet is exposed to being disabled or spiked by a mere boat's crew taking the battery by surprise. (Some degree of defensive strength is necessary in all cases; and in .sowie cases the necessary strength involves (inde- pendent of other causes) the construction of a regular fortification. The open earthen bat- teries of Lieutenant Morton rest on inclosed bastions of masonry, each of which is larger than most of our harbor works. X Take the case of Sebastopol, about which there are heights. None of them (Command- er Dahlgren's remarks have already been quoted) furnish proper sites for defending the harbor. Cronstadt offered no other sites whatever than artificial ones in, or islands almost level with, the water. Our own harbors generally ofi"er the same illustration of the ab- sence of favorable sites for open batteries. § Staten Island, at the Narrows, furnishes an apt illustration. The heights here are of about 120 feet. From the open batteries of Fort Tompkins, on the summit, heavy guns will rake the approach, and have a plunging fire upon passing vessels. The entire face of the heights (so far as the United States properly extends) is, or is to be, girdled with open earth batteries at heights of 60 and 45 feet. We have here about as many guns as ca'i be ranged in such batteries. But it is not deemed enough ; nor is the character of the fire such as to dispense with the numerous, and close, and rasing fires to be obtained from the sites at the water's edge, on which Fort Richmond is already built, and another similar pasemated castle" is to be built. No. 58.] 43 degree of security quite as great as can be given to men thus en- gaged.* On subjects which have a mere speculative importance, there is no danger in giving rein to speculation ; but on those of such real and intense practical importance as the s curity against hos- tile aggression of the great city and port of NcvV York, it is not admissible to set aside the experience of the past, or the opin- ions of the best minds who have devoted themselves to such sub- jects. A means of defence, sanctioned by its being confided into protect the great ports of Europe, which has protected the great ports of Russia against the most formidable naval armament that ever floated on the ocean, has a claim upon our confidence which mere criticism cannot diminish ; and a claim to' be adhered to in place of all new " systems, until time and trial shall have neces- sitated (not merely justified) the change. If, then, we refer to the practice of other nations to find what has been judged necessary for the defence of important ports — to experience, to find how such defensive systems have stood the test of actual trial, we may draw useful conclusions with regard to what is now required to defend New York. We shall find at Sebastopol — a narrow harbor, which OAved its importance to its being the great naval depot of Russia, on the Black seaf — an ar- ray of 700 guns, about 500 of which were placed in five mason- ry-casemated" works (several of them of great size), and the re- mainder ii) open batteries. t These defensive works fulfilled their object, and sustained the attack of the allied fleet on the 17th of October, 1854, without sensible damage. The facility with which sea-ports are attacked by fleets, the enormous preparations required, the great risks encountered in landing a besieging army on the coast of a formidable enemy (while, for protection against the former species of attack, costly works are necessary, and against the latter, field works and men can, in emergency, aff'ord protection), naturally caused the Rus- sians to make these water defences their first object. Yet, though almost unprotected on the land side, Sebastopol resisted for a * The criticism as to their capacity for men and stores is scarcely deserving of notice. When they are merely water-batteries (as most of them are), they require quarters enough for men to work the guns (5 or 6 to each piece), and ammunition storage enough for one or two protracted cannonades. In the mere service of the guns there is no crowding whatever. f An important point, surely; but how small its importance, and the interests involved in its defence, compared with iVeir York I X It is worthy to remark, that the only battery mentioned as silenced by the allied fire during the cannonade of the 17th of October, 1854, is that of the Quarantine Fort, an open barbette" — silenced, as Grivel says, malgre Pabride son parapet en terre" (notwithstand- ing the shelter of its earthen parapet.) [Assembly whole year an attack on that quarter ; and illnstrater! how, with plenty of men and material, an energetic and effectual land de- fence may be improvised, where the sea defence is provided for, as thoroughly as it was at that place.* Let Crondstadt be another example. Great as was the import- ance of its defence to Russia, it was not greater, it was by no means as great, as that of New York to our own country. This port and military and naval depot was defended (in its main ap- proach) by upwards of 600 guns,f 500 of which were mounted in five " masonry-casemated ^' works; the remainder in an open barbette battery, which enfiladed the main channel. This num- ber is formidable in itself; yet the same number mounted in New York harbor would not afford anything like such a formidable defence as was found at Cronstadt, owing to its great area, and long line of approach, compared with the latter.J These works fulfilled their object. They protected the great port and depot of Cronstadt and the capital of the empire from invasion. For two successive years did the mighty armaments of France and England threaten ; but they were overawed by the frowning array of " casemated castles which presented itself, and declined the contest. § Let us turn our eyes now to the great naval depot of France. After the almost incredible expenditure lavished here, in creating a harbor facing the shores of her great rival, England, and an equally profuse expenditure in providing all that constitutes a great naval depot, we may suppose that the best means, without regard to cost, which the science of man could devise, would bo employed here, to make this great seat of naval power secure against the formidable means of attack possessed by the great maritime power most likely to be the assailant. The means there employed are (so far as regards mere harbor defence) precisely the same (viz. : casemated works in several tiers, combined with open batteries, where the locations are favorable) ; and the appli- cation of means is the same as we have found so successful in Russia, the same which constitutes the system of harbor defence of New York. * See Appendix '«E." f Besides 120 guns on two ships of war, stationed so as to rake the approach. J For a more detailed account of the defences of Sabastopol, see Appendix "B." § A special armament was being fitted out in England, expressly to attack Cronstadt, had the war lasted another year. It consisted of several hundred " floating-batteries," gun- boats, mortar-vessels, ow whether there is any impossibility or impracticability in the construction of guns of this size ; but I cannot see why a gun of greatly superior calibre to anything we now have should not be made expressly for harbor defence. Such guns could not be fired with the rapidity of smaller ones; perhaps, too, like the Turkish guns, it would be found best to establish them on fixed lines of direction; but one such shot that hits would be worth a hundred smaller ones. A 30-inch hole could not he plugged ; and the explosion of a 30-inch shell would send a vessel to the bottom. Of the capability of such guns to inflict injury and of the efficiency of batteries mounted with them, an opinion may be formed by the single instance (so far as 1 know) that their quali- ties have been exhibited, viz : the retreat in 1807 of the fleet of Admiral Duckforth. " The defences of the channel had been allowed to go to decay ; but few guns were mounted, and the forts were but partially gar- risoned. In Constantinople not a gun was mounted, and no pre- parations for defence were made ; indeed, previous to the approach of the fleet, the Turks had not determined whether to side with the English or the French, and even the French am- bassador had the greatest difficulty in persuading them to resist the demands of Duckforth. The British fleet consisted of six sail of the line, two frigates, two sloops, and several bomb-vessels, carrying eight hundred and eighteen guns (besides those in the bomb-ships.) " Admiral Duckforth sailed through the Dardanelles on the 19th of February, 1807, with little or no opposition. This being a Turkish festival day, the soldiers of the scanty garrison were enjoying the festivities of the occasion, and none were left to serve the few guns of the forts which had been prepared for de- fence. But while the Admiral was waiting on the sea of Mar- mora for the result of negotiations, or for a favorable wind to make the attack upon Constantinople, the fortifications of this city were put in order, and the Turks actively employed under French engineers and artillery officers in repairing the defences of the Straits." Campbell, in his Naval History, says : " Admi- ral Duckforth now fully perceived the critical situation in which he was placed. He might, indeed, succeed, should the weather become favorable, in bombarding Constantinople; but unless the No. 58.] 61 bombardment should prove completely successful in forcing the Turks to pacific terms, the injury he might do to the city would not compensate for the damage which his fleet must necessarily sustain. With this damaged and crippled fleet he must repass the Dardanelles, now rendered infinitely stronger than they were when he came through them. " Under these circumstances, the Admiral determined to re- treat ; and on the 3d of April escaped through the Dardanelles, steering midway of the channel, with a favorable and strong cur- rent. " This escape, however," says Baines, " was only from de- struction, but by no means from serious loss and injury. In what instance in the whole course of our naval warfare, have ships re- ceived equal damage in so short a time as in this extraordinary enterprise ? In detailing the extent of this damage, we will take the ships in the order they descended. The first had her wheel carried away, and her hull much damaged, but escaped with the loss of only three men. A stone shot penetrated the second be- tween the poop and quarter deck, badly injured the mizzen-mast, carried away the wheel, and did other serious damage, killing and wounding twenty men. Two shot struck the third, carrying away her shrouds and injuring her masts ; loss in killed and wounded, thirty. The fourth had her mainmast destroyed, with a loss of sixteen. The fifth had a large shot, six feet eight inch- es in circuaiference, enter her lower deck ; loss fifty-five. The sixth not injured. The seventh, a good deal damaged, with a loss of seventeen. The eighth had no loss. The ninth was so much injured that, had there been a necessity for hauling the wind on the opposite tack she must 'gone down her loss was eight. The tenth lost twelve. The eleventh was much injured, with a loss of eight — making a total loss in repassing the Darda- nelles of one hundred and sixty-seven ; and in the whole expedi- tion, two hundred and eighty-one, exclusive of two hundred and fifty men who perished in the burning of the Ajax. " Such was the effect produced on the British fleet sailing with a favorable wind and strong current past the half-armed and half-manned forts of the Dardanelles. Duckforth himself says, that had he remained before Constantinople much longer — till the forts had been completely put in order — no return would have been open to him, and the unavoidable sacrifice of the squadron must have been the consequence. Scarcely had the 62 [Assembly fleet cleared the Straits before it (the fleet) was reinforced with eight sail of the line ; but, even with this vast increase of strength, the English did not venture to renew the contest. They had effected a most fortunate escape. General Jomini says that if the defence had been conducted by a more enterprising and ex- perienced people, the expedition would have cost the English their whole squadron.''* Truly, if half-dilapidated batteries (worked probably by un- practiced hands) could inflict these serious damages upon a fleet not engaged in actual contest, by merely trying to run by, under the most favorable circumstances of wind and tide, what might not such batteries be capable of? " In what instance," says Ad. Baines, " in the whole course of our naval warfare, have ships received equal damage in so short a time as in this extraordinary enterprise ?" It is to be remarked, however, that we have as yet had no fair instance of the power of modern shell guns from land batteries against ordinary ships of war. In the few direct contests which the Allies had with Russian fortifications, the modern armament does not appear to have existed ; and where shells were thrown from guns, they appear to have been of inferior calibre. Yet the Russians with the shell-guns of their fleet blew up two Turkish frigates at Sinope infifteen minutes. One of the main causes of inefficiency in coast batteries, which has given color to the idea that they may be passed, or even at- tacked with impunity, I conceive to be the want of skill and care in the use of the gun. The result is a prodigious smoke, and a prodigious throwing away of balls, and very little damage done. This has been, however, by no means peculiarity of coast defen- ces. The same system of randon firing has hitherto prevailed, both in the use of small arms in land and of heavy ordnance in sea battles ; nor has it occurred apparently to even the greatest masters of the art of war, to ask why, for one man wounded, or for one effective shot in a vessel's hull, so many thousands of shot should be thrown uselessly into the air. But this question is now asked, both in the use of the soldier's rifled musket and in the management of ships' guns, as well as of artillery of all kinds. It is at last discovered that it is of more importance to teach the soldier to direct his piece with accuracy of aim, than to per- » Halleck, " Military Art and Science." No. 58.J 63 form certain motions on parade with the precision of an automaton. The same idea is now infused into all the departments of military and naval science, and is a necessary result of the recent great im- provements in the construction of arms. In short, the truth has at last become apparent that the old-fashioned system of random firing, though perhaps like the " charge of the six hundred" at Balaklava, " bien magnifique, 7i^est pas la guerre.^^ It is of the utmost importance that we should apply this prin- ciple to the management of our sea-coast batteries, and give it a practical effect. The volunteers of our cities will constitute mainly, in time of war, the gunners of our forts and manipulators of our sea-coast guns. In time of war they will probably be ex- ercised in these duties. But it is most desirable that we should have at all times a body of gunners practiced in these exercises. The result would be, not only to give to our citizens, as well as citizen-soldiers, confidence in the defences provided for their se- curity, but it would disseminate military knowledge, and an in- telligent idea of the bearing and objects of the different defensive works. To carry out this idea, it would be desirable that there should be at each considerable seaport town a sufiicient garrison oi artillery troops to aid in the instruction of the volunteers. In the present condition of the army this cannot be hoped, but per- haps it might, at least, be found practicable to detail an artillery officer or two for the purpose. [ E. ] On the relative value and strength of earthen and masonry revetted works, the following extracts will be read with interest. The first is from the Report of Capt. George B. McClellan, 1st Cavalry, one of the "Military Commission to Europe:" This would seem to be the proper place to notice a popular fallacy which, for a time at least, gained extensive credence. It was, that the siege of Sebastopol proved the superiority of tem- porary (earthen) fortifications over those of a permanent nature. It is easy to show that it proved nothing of the kind ; but that it only proved that temporary works in the hands of a brave and skillful garrison are susceptible of a longer defence than was gen- erally supposed. They were attacked as field works never were before, and were defended as field works never had been defend- ed. The main difference between properly constructed perma- nent fortifications (intended to resist a siege) and temporary 64 [Assembly works, is, that the latter seldom present an insuperable obstacle against assault, while the former always do. In addition, per- manent works have a better command over the adjacent country, and are more carefully and perfectly planned. The masonry walls which render an assault impossible, cannot be seen from the distance, and can be destroyed only by establishing batteries on the crest of the glacis, or the edge of the ditch ; the earthen parapet alone being visible beyond that point, they may, until the besiegers arrive there, be regarded .in the same light as field works, with the difference that the garrison are not harassed by the necessity of being constantly prepared to repel an assault. " Now, in the siege of Sebastopol, the trenches of the besiegers never reached the edge of the ditch ; so that, had the fortifica- tion been a permanent one, the most difficult, slow, and danger- ous part of the siege remained to be undertaken, viz : the crown- ing of the covered way, the establishment of the breach batter- ies, the descent and passage of the ditch, and the assault of the breach ; in other words, at the moment when the weakness of the temporary works became apparent and fatal, the true strength of the permanent defences would have commenced coming into play. " Assuming the progress of the attack to have been as rapid as it was under existing circumstances, the besiegers on the 8th of September would not yet have been in a condition to crown the covered way, the siege would certainly have extended into the winter ; and it may even be doubted whether the place would eventually have fallen, until the Allies were in sufiicient force to invest the north as well as the south side." These views are, I believe, fully sustained by the other com- missioners. Majors Delafield of the Engineers, and Mordecai of the Ordnance Corps. But a more remarkable confirmation is found in the recently published " Journal of the Operations of the Engineers " at the siege of Sebastopol, by the French Engineer-in-Chief, Gen. Niel, which I also extract. It furnishes, at the same time, a simple and intelligible expla- nation of the extraordinary length of defence of that place. " Struck by the length of the siege of Sebastopol, certain foreign officers have expressed the opinion that masonry-revetted scarps are not of incontestable utility in fortified places.'' " Sebastopol, a vast retrenched camp, defended by field fortifi- cations of strong profile, derived its principal strength from an 58.J 65 armament such as. could only exist in an aisive maritime arsenal, and from a large army which always preserved its free communications with the interior of Russia." " If the enceinte had been provided with good revetted scarps ; if it had been necessary to breach these, and subsequently have been compelled to penetrate through difficult passages, in rear of which the heads of our columns would have met an army, Sebastopol would have been an impregnable fortress." " When we compare, in effect, the Works of attack at Sebastopol with those of an ordinary siege, we will see that on the 8th of Sept., 1855, the day of the last assault, we had only executed, after the greatest effort, the besieging works which precede the crowning of the covered way : we had not then, as yet, entered upon that period of the works of a siege which is the most diffi- cult and the most murderous ; and there was no occasion to en- gage ourselves in them, since the ditches and parapets of the enceinte were not insurmountable, as the sequel has proved." " The difficulty consisted in conquering the Russian army upon a position prepared long beforehand for its defence, quite as much as in surmounting the material obstacle of the fortification." "Our places of arms being established at thirty metres from the besieged works, we were able to choose our own time for action, and to throw ourselves unexpectedly upon the enemy when the fire of our artillery had forced him to shelter himself, up to the last minute, behind his numerous blindages ; to have gone further would have been inviting the initiative in the attack on the part of the Russian army." " The absence of scarp walls, which would have secured the place from escalade, did not exercise a less influence upon the defence ; for the besieged were compelled to keep permanently at the gorges of the works, strong reserves, in readiness to repulse the assault, which they saw themselves menaced with from the commencement of the siege." " Finally, it can be remarked, that these reserves, which were decimated night and day by the concentric fire of our batteries, were able to issue out from the enceinte through wide debouches, without having to pass through the narrow defiles which are formed by the draw-bridges of revetted places ; they were, then, a permanent threat for the besiegers, who were exposed to seeing their trenches anexpectedly invaded by the greater part of the Russian army," [Assem. No. 58.] 9 66 [Assembly " Neither side, consequently, was in a position analogous to that which is presented in the siege of a fortified place, pro- tected from insult by good masonry scarps." (Note to page 443.) And again, page 423, the same authority remarks (the italics are mine) : " Now, it (the Russian army) is no longer able to escape from the concentric fires of our batteries ; for, not being protected by masonry scarps, it is obliged constantly to keep united strong reserves in order to repulse the assault with which it is at every instant menaced." Avery Architectural and Fine Arts Library Gift of Seymour B. Durst Old York Library