. Uttiata, ^tm ^atk fL/^.G: SQAuhmAJj^ arVISeSO*^"""" """'""'y Library Magnetism : Cornell University Library The original of tliis book is in tlie Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31 924031 285863 ^:2:^^?^ yjy^- MAGNETISM ITS POTENCY AND ACTION WITH SUGGESTIONS FOR A NEW COSMOGRAPHY AND A NEW CELESTIAL GEOGRAPHY BY GEORGE W. HOLLEY AUTHOR OF " NIAGARA, ITS HISTORY AND GEOLOGY." BOSTON : ARENA PUBLISHING COMPANY Copley Square \ F\42S\']'1 Copyrighted, 1894^ By GEORGE W. HOLLEY. All righU reserved. PREFACE. Fob many years the writer of the following pages has been much interested in, given much thought to, and made sundry notes on the subjects of which they treat. Not, however, until his re- moval to Ithaca, in 1882, where he could avail him- self of the facilities for further study and ex- periment afforded by Cornell University, has he been able to make a systematic attempt to formu- late his ideas and conclusions. Still he has been obliged to quote some author- ities at second hand, while some he wished to con- sult he could not procure. He has also been obliged to omit some experiments he would have been glad to perform. A slight fire in his room partially destroyed some of his notes, the result of which is that some passages appear in quotation marks for which his memory does not enable him to quote the authorities. The reader will observe that much consideration has been given to the subject of magnetism, a form of energy whose universal action, the various and 2 FBEFACE. numerous ways in whicli it is manifested, the sub- tle influences which it exerts and exhibits in dif- ferent conditions have not, as the writer believes, been accorded the importance they deserve. Ex- cept in its most striking manifestations in connec- tion with electricity — electro-magnetism — and in animal magnetism it has not been fully investi- gated. In its finer and more subtle form as man- ifested in animal and vegetable life, especially in the minutest bodies, it seems to have been still less studied. Those forms of energy, the universality, pervasiveness and constancy of their action, it is one object of the writer to set forth and demon- strate. The same form of energy that swings the stars in their well-ordered courses forever wings the flight of the tiniest moth that perishes in a day. The facts and observations concerning the influ- ences that prompt the action of animals, kine, dogs, birds and insects, the multifarious forms and con- ditions of animal and vegetable life, and the per- sistence of the life force are chiefly new so far as shown by the authorities we have consulted in the excellent reference libraries of Cornell University and Columbia College. The field is wide and fer- tile and we have entered into details that would be irrelevant except that they elucidate the varied forms of magnetic energy. Some of our readers may prefer to consider elec- tricity rather than magnetism to be the most effi- PREFACE. 3 cient o£ the natural forces. We have given our reasons for preferring the latter. Our views con- cerning magnetism will be held to be entirely un- tenable by those who believe it to be " only elec- tricity in rotation " and that electricity is not a " form of energy." After the writer had finished his notes on the properties of magnetism he saw for the first time Dr. Hodge's " Modern Elec- tricity " and was gratified to find that some of his (the writer's) views and suggestions are fortified by so acute a thinker and so vigorous a writer. He was also gratified to note the just tribute of- fered by Dr. Hodge to the memory of the late Prof. Joseph Henry, the first discoverer of Telegraphy. If the writer has seemed to express himself with undue earnestness and confidence in some portions of his work, he begs the reader to believe that it has been in no spirit of dogmatism. Further ob- servations and experiments with improved instru- ments and under favorable conditions may tend to prove the truth of our main hypothesis. If we have presented any new truth, or any new fact or suggestion of permanent value that may help other students to take other onward and upward steps in this sublime field of investigation, we shall be sat- isfied. The labor has been one of ever increasing love, admiration, and adoration. Ithaca, N. Y., July 18th, 1891. Explanation. The reader will note that the author in treating of " matter " in several portions of the work, has used terms not contradic- tory, but disconnected. Instead of rearranging and correcting them in order to present a more logical conclusion, he deeidbd to leave them, with this explanation, as they were copied from his original notes. Page 65, first line, read "an" instead of "and". Page 171, second line, «0|jt "pairjof"- Page 1 74, sixteenth line, omit " pairs of ". Page 128, twelfth line from the top, read "rhythmic" for " rhythmatic " Page 224, third line in first stanza of poem, for " story " read " starry ". The first three lines in the last paragraph on page 277 should read: " The hyperboloid that revolves about its transverse axis gener- ates half a nappe. The nappes are surfaces of double curvature. They are " etc. MAGNETISM. I. Subject Proposed. — Object to be Attained. Since Sir Isaac Newton's announcement and ex- position of the laws of gravitation, so called, and their application to all matter, but more especially to the stars and planets and all other celestial bodies, no other subject, probably, has so fully occupied and exercised the minds of investigators of natural phenomena. This is especially true in regard to the stellar systems, and what may be called the Geography of the Heavens. The profound and intensely interesting investigations of Swedenborg, the Herschels, Laplace, Kant, Struve, Father Secchi and others, large as is the store of knowl- edge they have supplied, still leave much to be learned. The facts concerning the stars, suns, planets, nebulae and other celestial bodies considered as things, as material bodies moving in space, their 5 6 SUBJECT PROPOSED. elements, motions, periods, their mass, volume and weight, their relations to and influence on each other, have been more or less fully and satis- factorily ascertained and described. But the system under which the whole mass, the grand aggregation of the celestial bodies is arranged, their common centre, if they have one, their pres- ent and future positions, the probable or possible changes to which they may be subjected and the probable or possible periods of their existence, are still undetermined. The object of this memoir is to consider the present state of our knowledge on the subject, to glance at the different theories of the stellar cosmography, and then, after classifying and collat- ing such truths and facts as observation — which is a mental act, — experiment — which is a physical one, — and experience — which is the knowledge gained by experiment — have supplied us, to con- sider what further progress may be possible in our explorations of this most extensive and sublimest field of human knowledge. From Prof. Newcomb's lucid and admirable work " Popular Astronomy " we quote a striking paragraph which will more fully suggest the range and scope of our design. It is as follows : " The widest question which the study of the stars presents to us may be approached in this way : We have seen in our system of sun, planets, and satellites, a very orderly and beautiful struct- OBJECT TO BE ATTAINED. 7 ure, every body being kept in its own orbit through endless revolutions by a constant balancing of gravitating and centrifugal forces. Do the millions of suns and clusters scattered through space and brought into view by the telescope, constitute a greater system of equally orderly structures ? and if so, what is that structure ? If we measure the importance of a question, not by its relations to our interests and our welfare, but by the intrinsic greatness of the subject to which it relates, then we must regard this question as one of the noblest with which the human mind has ever been occupied. In piercing the mystery of the solar system, and showing that the earth on which we dwell was only one of the smaller of, eight planets which move around the sun, we made a great step in the way of enlarging our ideas of the immensity of creation and of the comparative insignificance of our sublunary interests. But when, on extending our view, we find our sun to be but one out of unnumbered millions, we see that our whole system is but an insignificant part of creation, and that we have an immensely greater fabric to study. When we have bound all the stars, nebulse and clusters which our telescopes reveal into a single system, and shown in what manner each stands related to all the others, we shall have solved the problem of the material univerae considered, not in its details but in its wL iest scope." While most profoundly impressed with the 8 OBJECT TO BE ATTAINED. magnitude of our task we may say, varying and extending slightly the phrase of Bacon, that " if we shall succeed in effecting anything to the pur- pose, what led us to it was a true and genuine humiliation of mind " and a sincere desire to some- what enlarge the boundaries of human knowledge and manifest forth the Divine Glory. SPACE, MATTER AND TIME. II. Space, Matter and Time. Before considering the stellar systems and more particularly the planetary system of which our sun is the centre, it will be profitable to con- sider some preliminary and most important ques- tions which stand in direct and most intimate relation to the whole subject. They relate to Space, Matter and Time. It is not proposed to consider the abstruse metaphysical nor the elabo- rate physical definitions of these elements, but merely to define them in the simplest terms that will enable the general reader to understand their value. While we have many speculations and suggestions concerning them, we have no succinct, comprehensive and satisfactory definition of either. Still we know their functions, their uses, and dis- tinguishing characteristics. Space is the medium which contains all Matter and in which all forces are developed and manifested. It can be bounded only by itself, and, since any limit whatever must be contained within another limit, it follows inevi- tably that it has no limit. 10 SPACE, MATTER AND TIME. Matter is an accretion, larger or smaller, of atoms or molecules that exist in a gaseous, liquid or solid state. It cannot exist without Space. It can have no extension or motion without Time. The swing of a pendulum records a second of time ; it also passes, simultaneously, through a second of arc in space, and by friction at the pivot of the pendulum-rod a molecule of matter is dis- sipated. Matter may fill all space, or, in isolated portions, it may fill dififerent parts of space. It may exist under an infinite variety of conditions and forms, and consequently may be changed, transformed and transmuted, but can never be destroyed. It may have an infinite number of deaths, it must have an equal number of resurrections. It is interesting to note one of the earliest ex- pressions of this idea of the indestructibility of matter. Marcus Aurelius in Meditation V. 13, writes : " I am composed of the formal and the material ; and neither of them will perish into non- existence, as neither of them came into existence out of non-existence. Every part of me then will be reduced by change into some part of the uni- verse, and that again will change into another pai-t of the universe, and so on forever." Again, in Med. VI. 15, " Some things are hurrying into existence and others are hurrying out of it ; and of that that is coming into existence part is already extinguished. Motions and changes are forever SPACE, MATTER AND TIME. 11 renewing the world, just as the uninterrupted course of time is always renewing the infinite duration of ages." Again, in Med. IX. 28, " Soon will the earth cover all : then the earth too will change, and the things also which result from change will continue to change forever, and these again forever." Time is the element — Bacon and Kant called time and space " forms" — which marks the growth, development, continuance, change or decay of all things and of all forms and conditions of life, or- ganic or inorganic. In particulars it is limited ; in the concrete it is limitless. Strato of Lampsacus wished time to be called the " measure of move- ment and rest." Aristotle called it the " measure of duration." Newton would make " duration another name for absolute time." Condensing these suggestions we may say that Time is the measure of motion and rest. The motion of a point in space generates a line ; the motion of a line in the direction of its greatest dimension generates a plane ; the motion of a plane in the direction of its greatest dimension generates a solid. The infinitesimal quantity of space is a point ; the same quantity of matter is an atom or a mole- cule ; the same quantity of time is an instant. If we could conceive of the beginning of all things and at the same time imagine the existence at once and together, of a point in space, an atom of matter and an instant of time, then the addition of another 12 SPACE, MATTER AND TIME. atom of matter would require the addition of an- other point in space, and to make this addition would consume another instant of time. By the continuous and perpetual repetition of this process we should make an infinite accretion of the differ- ent constituents. Thus in this trinity we have the germ of a physical universe, and in it we also observe the direct, intimate and perpetual union of Space, Matter and Time, their perfect and abso- lute correlation. In and by and through them we become acquainted with the somatology of matter and all the forms, varieties, properties and uses of force or energy. THE STELLAR AND PLANETABY SYSTEMS. 13 III. The Stellar and Planetary Systems. In studying the stellar and planetary systems the first objects to demand our attention are the stars themselves, including both suns and planets ; and after these, asteroids, nebulae, comets and meteorites. It is not proposed to enter into any historical details concerning them. We know, as already stated, their position, their composition, their characteristics and the laws which govern their motions. Of the medium, space, that they occupy and in which all their motions are exe- cuted; of the force or forces which insure their stability; of the manner in which those forces act ; of the system and order in which they are arranged and distributed in space ; concerning all these we have much to learn. It is proposed to collect and collate such facts and theories as bear upon these points, and then to determine whether, from strict analogy and legitimate deduction, we are not en- titled to advance still farther from the known into the unknown. " I am," says Faraday,* " exceedingly adverse * Conservation of Force. 14 THE STELLAR AND PLANETAJiT SYSTEMS. to the easy and unconsidered admission of one supposition upon another, suggested as they often are by any imperfect induction from a small num- ber of facts, or by a very imperfect observation of the facts themselves ; but, on the other hand, I think the philosopher may be bold in his applica- tion of principles which have been developed by close inquiry, have stood through much investigar tion, and continually increase in force." FORCE AND MOTION. 1ft IV. Force and Motion. Let us now turn our attention to force and mo- tion. The chief forces of nature, so called, are magnetism, electricity, heat, light, chemical affin- ity and gravitation. From these, singly or in com- bination, all motion is derived, what are called the " mechanical powers " not, of course, being consid- ered. Since the general acceptation by physicists of the validity and efficacy of what Grove calls the " correlation," Faraday the " conservation " and Herbert Spencer the " persistence " of force, all meaning the same thing, th§ law which Faraday characterizes as " the highest in physical science which our faculties permit us to perceive," the progress of physical science has been unprecedent- ed in extent and never exceeded in importance. In the long and earnest endeavor to establish the principle of the correlation of forces some physi- cists entertained the idea, amounting almost to a conviction, that it might ultimately be proven that there is, if not an absolute unification of all physi- cal forces, which are differentiated only by varia- 16 FORCE AND MOTION. tion of conditions, at least a single force which should permeate all others, and connection with which should be indispensable for their efficiency. Says Faraday * (§ 2146), " I have long- held an opinion amounting to conviction, in common I be- lieve with many other lovers of natural knowledge, that the various forms under which the forces of matter are made manifest have one common origin, or, in other words, are so directly related and mu- tually dependent that they are, as it were, convert- ible into one another and possess equivalents of power in their action. Again, farther on, he says (§ 2702), " The long and constant persuasion that all the forces of nature are mutually dependent, having one common origin, or rather being differ- ent manifestations of one fundamental power, has made me often think of the possibility of estab- lishing by experiment a connection between grav- ity and electricity, and so introducing the former into the group, the (jhain of which, including also magnetism, chemical force and heat, binds together so many and such varied exhibitions of force by common relations." " All the non-magnetic metals," he says (§ 2295), " are subject to the magnetic power," and further after the discovery of diamagnetism he says (§ 2420), that " all matter appears to be subject to the magnetic force as universally as it is to the gravi- tating, the electric and the chemical or cohesive * Experimental Researches in Magnetism. FORCE AND MOTION. 17 forces ;" also (§ 3174), " that whatever idea we employ to represent the (magnetic) power ought ultimately to include electric forces, for the two are so related that one expression ought to serve for both. Magnetic and electric lines of force are analo- gous, and considering the existence of these lines of force he says (§ 3273), " The magnet is evidently the sustaining power. In every point of view, therefore, the magnet deserves the utmost exer- tions of the philosopher for the development of its nature both as magnet and a source of electricity." Such are the opinions of this distinguished philos- opher. They are more or less fully corroborated by many others. One of his most distinguished contemporaries, the late Prof. Maxwell, comment- ing upon his experiments in magnetism in its re- lation to the ether and the electro-magnetic rota- tion of light says (Address before the London In- stitution), " The vast planetary and inter-stellar regions will no longer be regarded as waste places in the universe which the Creator has not seen iit to fill with the- symbols of the manifold order of His kingdom. We shall find them to be already full of this wonderful medium ; so full that no human power can remove it from the smallest por- tion of space or produce the slightest flaw in its infinite continuity. It extends unbroken from star to star ; and when a molecule of hydrogen vibrates in the Dog-star the medium receives the 18 FORCE AND MOTION. impulses of these vibrations." Of similar purport is the following extract from Sir W. Thomson's Papers on electrostatics and magnetism : " It is often asked, are we to fall back on facts and phe- nomena and give up all idea of penetrating that mystery which hangs around the ultimate nature of matter? ... It does seem that the marvellous train of discovery, unparalleled in the history of experimental science, which the last years of the world have seen to emanate from experiments, must lead to a stage of knowledge in which laws of organic nature will be understood in this sense : that one will be known as essentially connected with all, and in which unity of plan through an in- exhaustibly varied execution will be recognized as a universally manifested result of creative wisdom." More emphatically accordant with the foregoing views are those expressed by Helmholtz in his "Aim and Progress of Physical Science " : " It has actually been established as the result of investiga- tions, that all the forces of nature are measurable by the same mechanical standard, and that all pure motive forces are, as regards .performance of work, equivalent." . . . . " Whether the foregoing considerations chiefly seek to elucidate the logi- cal value of the law of conservation of forces, its actual signification in the general conception of the processes of nature is expressed in the grand con- nection which it establishes between the entire processes of the universe through all distances of FOnCE AND MoTton. 19 place or time. The universe appears, according to this law, to be endowed with a store of energj'- which, through all the varied changes in natural processes, can neither be increased nor diminished ; which is maintained therein in ever-varying phases but, like matter itself, is from eternity to eternity of unchanging magnitude." Says Grove in " concluding remarks " on the " Correlation of Physical Forces " : " The convic- tion that the so-called imponderables are modes of motion, will, at all events, lead the observer of natural phenomena to look for changes in these affections, whenever the intimate structure of matter is changed ; and conversely to seek for changes in matter, either temporary or permanent, whenever it is affected by these forces. ... It is a great assistance in such investigations to be intimately convinced that no physical phenomena can stand alone ; each is inevitably connected with anterior changes, and as inevitably productive of consequential changes, each with the other, and all with time and space ; and either in trac- ing-back these antecedents or following up their consequents, njany new phenomena will be discov- ered, and many existing phenomena, hitherto be- lieved distinct, will be connected and explained. Explanation is, indeed, only relation to something more familiar, not more known, i. e., known as to causative or creative agencies. " In all phenomena the more closely they are 20 FORCE AND MOTION. investigated^ the more we are convinced that, humanly speaking, neither matter nor force can be created or annihilated, and that an essential cause is unattainable. Causation is the will, crea- tion the act, of God." " The natural philosophy of the future," says Tyndall (Heat as Motion, p. 351), " will certainly, for the most part, consist in the investigation of the relations subsisting be- tween the ordinary matter of the universe and the wonderful ether in which this matter is immersed." These citations are sufficient to indicate the cur- rent of scientific opinion on the point above re- ferred to, and also to convince us that there is an earnest, abiding hope and conviction that grand results are yet to be attained by further faithful work in this direction. In this chapter we have preserved the nomencla- ture of the distinguished scientists whom we have quoted, in order that we might show the change that has taken place in that nomenclature, by giv- ing the terminology finally adopted by modern scientists. The terms "correlation," "conserva- tion," and " persistence " of force are no longer used. It is now settled that energy, to which we have referred in the sequel, is the thing conserved, and forces are factors of energy, of which there are different kinds or varieties exhibited under differ- ent and varying conditions. Of the unity of what are called the " forces of nature " all physicists are practically convinced, but what term shall define FORCE AND MOTION. 21 tliat unity is not settled. The unity consists in reducing them all to modes of motion of which there is an almost infinite variety, many of which we have set forth in the sequel. 22 MAGNETISM AND ELECTRICITY. V. Magnetism and Electricity. We propose now to set forth in detail the more important results of observation and experiment which have been reached up to the present time, results of truths and facts in the grand curriculum of physical science which furnish the material for both the foundation and the superstructure of a new Cosmography and a new system of Celestial Geography. Let us begin with magnetism and electricity. To the strong, earnest, reverent genius of Faraday, science is indebted for the most original, extended, subtle and lucid exposi- tions of the properties, characteristics and effects of magnetism considered as a force, and also of those of electricity, though less fully. After fin- ishing his famous experiments in which he suc- ceeded in rotating a ray of polarized light by mag- netic and electric forces he says : * " Thus is established, I think for the first time, a true, direct relation and dependence betweeh light and the magnetic and electric forces, and thus a great ad- dition made to the facts and considerations which * Exp. Kes. in Magnetism, Vol. III. pp. 19-20. MAGNETISM AND JELECTEICITT. 23 tend to prove that all natural forces are tied to- gether and have one common origin." " A magnet placed in the best vacuum we can conceive acts as well upon a needle as if it were surrounded by air, water or glass, and therefore these lines exist in such a vacuum as well as where there is matter." * " All magnets first originate lines of magnetic force which other magnets under one .condition will receive and conduct, and, under another condition resist and repel, exhibiting the ordinary conditions of magnetic attraction and re- pulsion. But currents of electricity are competent to produce or induce collateral currents, and mag- nets are proved competent to produce like cur- rents, thus showing the identity of action of mag- nets and currents, in producing effects different from those of ordinary magnetic attractions and repulsions. External to the magnet, those concen- trations which are named poles may be considered as connected by what are called magnetic curves or lines of magnetic force, and which exist in the space around." " These phrases have a high meaning, and represent the ideality of magnetism. They imply not merely the directions of force which are made manifest by the smallest magnet, but also those lines of power which connect and sustain the magnetic polarities and which exist as much when there is no magnetic needle to show their presence as when there is." * Exp. Ees. in Magnetism, p. 415. 24 MAGNETISM AND ELECTRICITY. The earth, according to Gauss, is a great mag- net whose power is expressed by the utterly in- comprehensible sum of eight octillions of pounds. "Experiments prove that there is no loss, or destruction, or evanescence, or latent state of mag- netic power, caused by distance, nor in consequence of the convergence or divergence of the lines of force or obliquity of their intersection." (§§ 3110, 3112, 3113.) " Such an action (Magnetism, § 3075) may be a function of the ether, for it is not at all unlikely, if there be an ether, it should have other uses than simply the conveyance of radia- tions." " It may be a vibration (§ 3263) of the hypothetical ether, or a state of tension of that ether equivalent to either a dynamic or static con- dition." " A magnet presents a system of forces perfect in itself, and able, therefore, to exist by its own mutual relations." Let us especially note that there is no otJier force of which this, can be said. " It has a dual and antithetic character belonging to both static and dynamic electricity, as is demon- strated by the opposite powers of like kind formed at its poles. These poles are related to each other not only through or within the magnet itself, but also by external curves or lines of force, without which they cannot exist," * since it is impossi- ble to construct a magnet with a .single pole. " Though the physical lines of force of a magnet * Exp. Res., Vol. III., p. 441. MAGNETISM AND ELECTRICITY. 20 must be considered as extending to an infinite dis- tance around it, so long as it is isolated, yet they may be condensed, compressed into a very small local space by other systems of magnetic power." From ordinary magnetism, Faraday (Vol. I., § 157) developed electricity, and refers (Vol. III., p. 524) to Carnot's experiment with a revolving disk, in which he found currents of electricity com- petent to produce collateral currents and magnets proved competent to produce like currents. And notwithstanding the generally accepted impression that all metals lose their magnetism when raised to a red heat, he declares that the magnetic metals retain a certain amount of magnetic power, what- ■ ever their temperature. Arago discovered the fact that when a copper plate or disk is rotated below a freely suspended magnet, the* latter tends to follow the motion of the plate. This is the effect of a magnetic force pure and simple. And Faraday explains it as arising from electrical currents induced by the magnets in the rotating disk, thus proving, in this case at least, that the action of magnetism and electricity are identical. He also states (§ 2514) that " if a copper disk suspended by a long string is set whirling, and is then introduced into the field of an electro-magnet, its motion will be instantly arrested, and it cannot be further rotated in the field." In this case, also, it is the magnetic force that proves effective. 26 MAGNETISM AND ELECTBICITT. Again, Helmholtz * writes, a copper disk set in a wood frame, with multiplying gear, and rotated with great rapidity, was placed between two pieces of iron which did not touch it, being part of the armor of an electro-magnet. Turn the current of a 3-cell battery round this magnet, and the pieces of iron act like a break that entirely stops the rota- tibn of the disk, and it can only be started again by the application of a strong force. Here, also, the result is due to magnetism, or the magnetic force. Prof. Tait, also, a conservative and accom- plished physicist, notes f that " where a conducting body is made to move in the neighborhood of a magnet, the relative motion of the two produces currents of electricity in the conductors. If a copper disk be kept so moving, the faster it moves the stronger the currents become, until, finally, the disk is heated and melted ; " thus proving that in- tense heat is evolved from magnetism alone, there being no friction of surfaces. This is in conform- ity with Oersted's investigations, which linked to- gether magnetism and electricity, and also with Ampere's conclusion, that all the properties of a permanent magnet can be explained on the hypoth- esis of electrical currents circulating in a fixed direction around the magnet. If two polished disks of zinc and copper be brought into close prox- imity and kept there for some time, and either of * PhU. Mag., 1867. t Recent Advances in Physical Science. MAGNETISM AND ELECTRICITY. 27 them has irregularities upon its surface, a super- ficial outline of them will be traced by each upon the other, showing the action of magnetic force. If the disks be connected with a delicate electro- scope, and then suddenly separated, the electroscope is affected, showing that superficial radiation from surface to surface has produced electrical force.* " All substances conduct electricity in some de- gree." f " There are no bodies," says Daniel, J " which are absolutely non-conductors ; all conduct electricity more or less slowly. There are no bodies that are perfect conductors ; all offer more or less resistance to the fiow of electricity." One of the most important and comprehensive actions of magnetism is that manifested in chemic force. Its wide range of affinities and activities is marvellous ; its various combinations and mixtures are infinite in number. Every stomach, every ap- paratus for secretion and digestion in every living organism is a chemical laboratory in constant operation. Every vegetable growth, from the least to the greatest, is a product of chemic force. The earth is one vast laboratory for the produc- tion of germs, roots, stems, cells and protoplasm for every possible variety and form of plant-life. It energizes all living matter and reproduces new life from death and decay. Its most amazing ex- * Grove, Con. of Forces, p. 58. t Ganot's Physics, p. 566. i Principles of Physics, p. 537. 28 MAGNETISM AND ELECTRICITY. hibition is its selective faculty. The vast fertile portions of the earth are covered with innumerable forms and varieties of vegetation, of every shape and color, producing every variety of fruit to grat- ify the taste and of flowers to charm the eye. Plant organisms of different size, form, function, and color gvow side by side in the same soil, the same atmosphere and under the same conditions. The fruits and flowers that they produce are as various in flavor and in fragrance as they are al- most infinite in number. To the electro-chemic force we are indebted for all forms of crystallization — for gems and precious stones, for the agates and malachites, for the nu- merous variegated marbles, and, especially, for the lodestone, without which ocean navigation would be nearly paralyzed by day and entirely so oh star- less nights. We have in the sequel (p. 33) noted the fact that the greatest magnetic tensity in different bodies is manifested at their edges and pointed ends. In cylindrical bodies or any bodies with curved surfaces it is distributed more or less uni- formly through the exterior surface. In trees, shrubs and plants the character of the organism as to density, elasticity, color, graining, etc., is determined by the electrical and chemical action of the nutritive material with which, through the aid of light, heat and moisture the organism is built up. Miiller found that the electrical action in MAGNETISM AND ELECTRICITY. 29 growing trees and shrubs was most effective in the extremities of the roots and branches, thus con- firming Darwin's observation, as to the roots, that their irritability — sensitive growth — was local- ized in t)ieir tips. This also corresponds with the action of magnetism in solids. The dynamic energy of magnetism is very strik- ingly shown in the growth of shrubs, plants and trees. All these except air-plants derive their nourishment from the earth and the air. One of the most conspicuous exhibitions of at- mospheric magnetism, if we may so designate it, is seen in the growth of trees standing in groves in an open country. All the branches of the trees growing on the edges of the grove are strongly drawn outward by the magnetism in the atmos- phere and in the unshaded earth, while the inward growth, towards the shaded earth and shadows of the trees, is exceedingly limited, except near and at the tops which are fully exposed to the light on all sides so that the branches stretch out equally in all directions. This characteristic of tree- growth is especially exhibited in trees that stand isolated in open fields. They present broad, beau- tiful, bushy tops, and attain a larger growth than the same class of trees standing in forests. Young trees of any kind, .but especially fruit trees standing on either side of a thick grove, will be stunted in growth, and after reaching a certain height the branches will be drawn toward 30 MAGNETISM AND ELECTRICITY. the light and in due time will be so curved as to stand nearly at right angles with the bole. No branches will grow towards the grove. Light, the magnetic force that compels all these branches to grow in one direction, is as efficient as any me- chanical force could be, though slower in action. One of the most beautiful exhibitions of tree- growth is the graining of the wood. The word is not found in the best text-books in botany, and the fact is only slightly indicated in the description of the stratified gi'owth of the organism. The principal elements in building up the organism are the roots and stems, the former drawing from the earth the substantial ingredients that furnish the protoplasm of the stem with its branches and leaves. The nutriment of different kinds utilized in tree-growth is stored in cells. These cells are of different form and size and are disposed in different positions in the tree trunks and branches. Some of them stand upright, nearly parallel to the axis of the stem. But much the larger number of them stand at different angles with the axis, as may be seen when they are strongly magnified. Each cell has its own wall, and as the tree advances in age their composition is changed. When the cells are small, thin, short and narrow and lie parallel with the trunk-axis, the grain of the tree will be straight, fine and uniform. When the cells are longer and broader with thicker and more porous walls and MAGNETISM AND ELECTRICITY. 31 when they are disposed at different angles with the axis of the trunk then the fibrous stratification is more manifest and tiae curved, wavy and forked lines and veins of the grain are more fully devel- oped. In some species of trees the cells are vario- late, presenting an appearance similar to the pit- tings of small pox ; others are verticulate, dis- posed in sworls. These two classes of cells are strongly developed in the curl and spotted maple, the graining of which is often very beautiful. In all trees the laminated structure that forms the rings which mark the annual circumferential growth of the tree is most rapidly developed while the tree is young. The width of the rings is always greatest next to the centre of the stem and they grow nar- rower each succeeding year. We have seen the butt of a white oak the annular rings of which proved it to be more than four hundred years old, and after being sawed some axe- marks near its centre were showi> to have been made more than one hundred and fifteen years before Columbus discovered America. That the density and strength of the cell walls is greater than that of their contents may be de- monstrated by applying an acid of proper strength to the clean surface of the heart-wood of any tree. The contents of the cells will be eaten out and the cell walls will appear like a collection of small pits, as indicated below. If these be rubbed hard with a bit of polished steel a smoother aijd harder 32 MAGNETISM AND ELECTRICITT. surface will be made than can be made in any- other way. The rapidity of growth and graining of the tree varies with the season. In the spring, after the winter's rest and after the rain showers have thoroughly moistened the earth and the rays of the sun have become more ardent, then the roots are most active and the growth of the tree is most rapid. And the graining is then also most rapidly developed, being aided by strong winds and gales which sway and bend the stem in all directions, resembling what would be the action of a wet cylindrical sponge when bent, in forcing the moist- ure to the surface of the inner curve. There is also absorption of what Sachs calls the " nutrient fluid " from without. Thus the growth progresses rapidly until the autumn when the leaves fall and the sap descends through the roots to the earth. Then follow the colder months of the autumn and winter. During this period the bole and branches undergo a hardening process, making the wood more dense, tough and strong. In tropical climates they are hardened by heat, by baking as it wei-e. To this high temperature also, is due the gigantic vegetable growths of those climates. Says Sachs, * " Chemical processes in the interior of the growing body is always connected with these (micellse) processes of growth. The nutrient fluid which penetrates from without contains in fact the * Text Book of Botany, pp. 666-7. MAGNETISM AND ELECTRICITY. 33 material for the formation of micellae of a definite chemical nature; but the material is chemically different from the micellae which it produces. Thus starch grains are nourished by a fluid which clearly does not contain any starch in secretion, and again the cell wall grows by the absorption of substances out of the protoplasm which are not dissolved cellulose Growth by intussus- ception is therefore connected not only with a con- tinual disturbance of the molecular equilibrium, but also with chemical processes in the interior of the growing structure. Chemical compounds of the most various kinds meet between the micellae of an organized body so that they act upon and decompose one another. It is certain that all growth continues only so long as the growing parts of the cell are exposed to the atmospheric air. The oxygen of the air has a decomposing effect on the chemical com- pounds contained in the organized structure ; with every act of growth carbon dioxide is produced and evolved. The equilibrium of the chemical forces is also continually disturbed by the necessary produc- tion of heat and this may also be accompanied by electrical action. The movement of the atoms and molecules within a growing organized body repre- sent a certain amount of work, and the equivalent forces are set free by chemical changes. The essence of organization and of life lies in this : that organized structures are capable of a constant internal change, and that so long as they are in contact with water 3 34 MAGNETISM AND ELECTRICITY. and witli any oxygenated air only a portion of their forces remains in equilibrium even in their interior, and determines the form and framework of the whole, while new forces are constantly being set free by chemical changes between and in the molecules, which forces in their turn oc- casion further changes. This depends essentially on the peculiarity of micellar structure, which per- mits dissolved and gaseous (absorbed) substances to penetrate from without into every point of the interior and to be again conveyed outwards." From this extract we learn that in all growing plants the moisture of the atmosphere exercises an important function. It acts like a balance wheel in an engine ; it secures uniformity of action, of energy, and this secures uniformity of growth. The atmosphere is never entirely free from moists ure as was abundantly demonstrated by Tyndall. To this fact is due the abundant juiciness of tropi- cal and semi-tropical fruits, melons, oranges, pine- apples, etc., that grow on light soils with infrequent rains. Says Grey,* "The color in trees is owing to special vegetable products, or sometimes to alter- ations resulting from age." Chemical action and electricity, as noted above, also exert an influence. This is true as to single, separate trees. But why trees of different species growing in the same soil, the same climate and the same atmosphere should » Text Book of Botany, Sec. 147. MAGNETISM AND ELECTRICITY. 35 differ entirely in grain and color, one being of a pui-e white like the outer layers of rough-bark hickory, another the dark shade of the black oak, another with the deep red of the mahogany, another with the soft, bright j'ellow of satin wood, we do not know. Through some subtle alchemy of nature the roots and sap seem to be endowed with a selec- tive faculty that enables them to supply the par- ticular protoplasm necessary for each variation of wood, form and color. This selective faculty must be mainly due to chemical afSnity and combination. There are also various nutrient vegetables grown beneath the earth's surface. There are others that are rank poisons. All these are indebted to the selec- tive faculty of the roots, especially to what the old botanists called the nib, for their distinctive charac- teristics. It is the chemic force that dyes the foli- age of tree, shrub and flowers, that paints the neck of the dove and the breast of the robin. The red rose and blue violet are as red and as blue at mid- night as at mid-day. Light is the subtle and potent alchemist that reveals them to our con- sciousness. 36 ELECTRICITY. VI. Electridty ; Magnetism; Vacua; Radiant Seat; The Universal Force. In some experiments made by Mr. John Hop- kinson, quoted by Sir Wm. Thomson,* he found that the electric current traversed witli difficulty a partial vacuum, and that the more perfect the vacuum became the more effectually the current was im- peded, until, in a vacuum as perfect as it is possible to create by artificial means, the current was entirely checked. M. Pliicker employed Geissler a skilful glassblower of Bonn, to make permanently ex- hausted tubes for experiments in electric discharges in vacuo. In his experiments Pliicker found that the luminous strata developed by these discharges and also the streams and glows after the discharges, obeyed magnetical influences in a remarkable way. Here we are reminded of the Aurora and the Zodiacal light, and still farther by the fact that, in one case — the discharge between two aluminium balls, — the striae nearest the negative ball were * Proceedings of Royal Society, Dec. 11, 1863. VACUA. 37 truncated and of a pale green color, the color observed in those lights through the spectroscope, as we shall see in the sequel. These discharges were also studied by Gassiot by- means of a galvanic battery and other forms of elec- tric generators. We also learn from Ganot * con- cerning Geissler's tubes that, " at the moment of being closed these tubes are exhausted and before sealing them a small quantity of gas or vapor and potash is introduced, so that its pressure does not ex- ceed half a millimetre." Hence they were not perfect vacua. "When a tube three inches long and one inch in diameter, provided with very thin platinum electrodes five-eighths of an inch apart, was employed no discharge passed till the potash which it con- tained was heated, when a faint luminosity appeared, and immediately afterwards one and then two cloud-like striae came from the positive wire, while round the negative a large brilliant glow was pro- duced ; as the discharge continued the negative wire became red-hot." In this experiment proof is obtained that the discharge will not pass in a very perfect vacuum, the presence of a certain amount of matter being indispensable, and then heat is developed. Of course the " heated " potash supplied the " matter " which destroyed the vacuum and was " indispensable " before the discharge could pass. Faraday demonstrated that the magnetic force freely traversed the same kind of vacuum, also * Ganot's Physics, p. 733, Atkinson's Translation. 38 VACUA. that similar electrical currents placed side by side add their quantities together and similar magnetie lines of force do the same, hence electric lines of force are analogous to magnetic lines of force (§§ 268, 269). As indicating the compressibility of magnetism — a term repeatedly employed by him and other scientists— is the fact that a helix-carrying current can develop in an iron core a magnetic force of a hundred fold greater power than that possessed by itself (§ 3273). " All bodies are affected by helices as by magnets, and according to laws which show that the causes of the action are identical as well as the effects " (§ 22869), thus confirming the correctness of the opinion of Ampere as to the identity of the action of helices and magnets. We also know that when the plane or square ends of a bar magnet are made conical or pointed their intensity and power are much increased. And we are led still further in the same direction by the experiments of M. Plantd who constructed some powerful secondary batteiies by connecting the secondary elements side by side or in series. By thus connecting four or five elements and dis- charging them through a short, thick iron wire, he heated it to what may be called the boiling point, the centre of it being fused into a ball with bub- bles of gas bursting from the interior. He also found that the secondary currents would magnetize electro-magnets much more powerfully than the RADIANT HEAT. 39 primary currents from which they were derived. The miiximum magnetization which a steel bar can acquire depends not only on the nature of the steel and its mode of tempering, but also on the dimensions of the bar. It is greater as the bar has the form of a longer and thinner cylinder. By working very thin rods Kohlrauch observed that the magnetic moment of steel may attain 100 units per gramme, which would give a strength of magnetization . . . nearly 10,000 times that of the earth.* Joule proved that bars of iron, nickel and cobalt were lengthened by magnetization and that when the action of the field is suppressed the bars shorten without returning to their original length. The elongation of cobalt is nearly twice that of iron. I The blacksmith would find it necessary to apply many sturdy blows of his sledge hammer in order to elongate a bar of cold iron ; but here is a silent, invisible, irresistible force that accomplishes this work, in a longer time, perhaps, but with equal efficiency. It is also proved that a bar of soft iron becomes heated when subjected to suc- cessive magnetizations and demagnetizations or to magnetizations in opposite directions, J The elongar tions by heat and the shortening by frost of iron * Marcart and Joubert : Elect, and Mag., translated by E. Atkinson, t Joule's Scientific Papers, Vol. I., pp. 235-264. X Grove : Art. VI. Magnetism. 40 RADIANT HEAT. rails and other bars of iron exposed to tlie alternar tions of the weather are familiar facts. Prof. Crookes, by means of what he calls radiant matter, operating in vacuum tubes or bulbs of glass, pro- duced the shadow of an aluminium cross on the phosphorized end, so to speak, of a bulb. The radiant matter thus projected not only made the glass phosphorescent, but also warmed it, a very remarkable result, indicating that if the strength of the induction coil were increased and its action longer continued the temperature of the glass would have been raised even, perhaps, to the melting-point.* The mechanical action of this radiant heat is shown by the glass railway bulb, within which, on a pair of glass rails, a small wheel with wide mica spokes is propelled. This mechanical action is further exhibited in the beautiful electrical ra- diometer which carries within the bulb a fly — as Crookes calls it — with four square vanes of mica supported on aluminium arms, having beneath a ring of fine platinum wire, the ends of Avhich pass through the glass and may be connected with an induction coil. On this being so attached as to make the platinum wire the negative pole the vanes were rotated with great velocity. Now as Faraday and Hopkinson demonstrated that elec- tricity cannot freely traverse a vacuum, it follows that these and all similar results obtained by means Gorton : Electricity and Maj;., pp. 121, 123. RADIANT HEAT. 41 of these tubes must have been produced by magnetism or a magnetic force, since it has also been demonstrated that magnetism easily traverses a vacuum. Further, in regard to vacua we may note that Morgan, quoted by Grove, — Art. Light — "found no conduction by a good Torricellean vacuum," and that Masson found that the barom- etric vacuum does not conduct a current of elec- tricity, or even a discharge, unless the tension is sufficient to detach particles from the electrodes;" and further that Gassiot " by adopting a plan of Dr. Andrews, viz. : absorbing carbonic acid by potash, succeeded in forming vacua across which the powerful discharge from the Rhumkorf coil will not pass." The old Realists — so called — spake more wisely than they knew when they de- clared that "Nature abhors a vacuum." This is sufficiently demonstrated by the fierce alacrity with which it hastens to fill one that has been produced by the operation of its own laws. When a vacuum is created in the air by the explosion of a thunderbolt the vast pressure of the whole terrestrial atmosphere instantly rushes in to fill it. Now, if it be true, according to the abundant evidence we have cited, that electricity cannot traverse a vacuum, it must be particularly noted that there can be no electricity in the medium or force that fills that vacuum, for all the electricity in the vicinitj- had been exhausted by the dis- charge of the bolt, and even if electric currents 42 THE UNIVERSAL FORCE. could have been present they would been ineffec- tive. But magnetic currents or lines of force freely traverse a vacuum, and these must have supplied the force which restored the atmospheric equilibrium. Leibnitz saj-s, " The ultimate source of all motion is the original force lying in all bodies which may be restricted or limited in various ways by the conflict or collision of other bodies. This force lies in all substances and a certain action always arises from it." This was written nearly 200 years ago, and is a very good description of the magnetic force as we know it to-day. Kant claims that Leibnitz founded the dynamic conception of nature which has since continued to prevail. The following may be accepted as a free translation of a significant passage in his (Leibnitz's) doctrine of Monads : " Matter must be always the same, since the monads are always the same ; and force can never be destroyed since the monad can never be destroyed. The whole interchange of forces is simply the result of a greater or less degree of movement on the part of the universal force which every atom' possesses, and all forces are, therefore, correlated with each other through motion." "And," continues Kant, " if the student of nature at the present day, in all his experiments and inferences, starts from and returns to this idea, if in all the varying phenomena and manifold magic of the outer world, his endeavor is always to grasp the one natural force and bring it into subjection to THE UNIVERSAL FORCE. 43 thought and law, this mode of viewing things traces its origin to Leibnitz." And in summing up the doctrine of Leibnitz he argues that it was based " partly upon errors and partly upon truths," both of which he specifies. Among the truths is his express belief in " the animation of all things ; the recognition of an inner, active principle co- operating or rather operating in everything which stirs or moves."* Magnetism may be imparted to different metals and other substances by slight contact, by friction, by induction and by impact, gentle or smart raps. The latter method was suggested by Sir Isaac Newton when one of his contemporaries informed him that he could not succeed in repeating Sir Isaac's experiment of magnetizing by friction with a magnet, small bits of paper under glass, the two being slightly separated from each other. He in- formed his correspondent that if after duly applying friction, the paper did not rise to the magnet, he would gently rap the glass he would succeed, as he did. In this direction, after successfully re- peating Sir Isaac's experiment, we further tested the method in the following manner, using flat- headed, soft, bright iron French nails, three inches long, i inch in diameter, a lodestone hammer weighing four ounces and a small pocket compass. Making a rest for the nails in a bit of wood we treated them as follows, the head of each being * Kant : Crit. of Pure Eeason, pp. 379, 299. 44 THE UNIVEBSAL FORCE. presented to the positive pole of the needle im- mediately after contact. Wire No. 1 slight contact for ^ second deflected the needle 34° " " 2 " " " a seconds" " 44° " " 3 one light rap " " 30° " " 4 one smart rap " " 38° " " 5 ten •' " " " 55° We have used these facts, as will be noted in the sequel, when treating of hunting dogs. LIGHT AND BEAT. 45 VII. Light, Heat and Magnetism; Chemical Action; , All Natural Forces Equivalent. * We know that light and heat are easily developed from artificial magnets. " Heat," says Bacon,* "is an expansive motion whereby a body strives to dilate and stretch itself to a larger sphere or dimension than it had previously occupied. Cold contracts or narrows most substances so that in in- tense frosts nails fall out from walls and brass cracks." Few residents of New England seventy years ago can have failed to hear, on a bitter cold morning, the sudden, sharp report that followed the starting of some of the wroughl>iron nails that were used at that time in the erection of wood buildings. When a bar of soft iron is held in the hand in a temperature of 60° F. no inconvenience is felt whether the hand be dry or moist, but let the iron be exposed in the open air over night when the temperature is 30° F. below zero, if it then be touched with a moist finger, it cannot be removed without abrading the flesh. A small horse-shoe * Novum Organum, App. XX. 46 LIGHT AND HEAT. magnet, as was proved by the writer, Lad its magnetic power very materially increased by out- side exposure for 12 hours in a temperature of 10° F. Mr. Coxhall relates that, in the famous balloon ascension made by himself and Glashier in 1862, just before they had reached their greatest altitude and while Glashier was lying exhausted in the car, he wished to let out the gas, and on remot^ing the thick glove from his hand to do so, his fingqfs were frozen the moment they touched the wire. It is definitely proved that the temperature falls as we ascend above, and rises as we descend below, the surface of the earth, and that the magnetic in- tensity is least at the equator and greatest at the poles ; also that the tensity in the magnetism in different bodies varies according to their form or shape. If the body be oblate or an oblong spheroid, the intensity is greatest at the poles, and still greater if it be of a cylindrical form with conical or pointed ends, as we have before noted. The depth of the electric fluid on an angular conductor increases in rapid proportion on approaching the edges, is still further augmented at the corners, which may be regarded as two edges combined, and is a maximum if the conductor have the form of a point, thus exhibiting at each change a greater condensation of the fluid.* When a fine point is used to produce a dis- * Noad : Text Book of Electricity, pp. 18, 19. LIGHT AND HEAT. 47 ruptive discharge from a positively charged con- ductor the brush discharge (from the conductor) gives place to a quiet, phosphorescent, continuous glow covering the whole end of the wire and ex- tending into the air. Faraday covered, with a beautiful and luminous glow, a brass ball one and a quarter inches in diameter.* Several instances are reported in which the electric spark has been drawn from a natural magnet. It was done by Faraday and also by Prof. Forbes of Edinburgh in 1832. By the use of a powerful lodestone he succeeded, repeatedly, in producing the sparks, f This experiment is important as further proving, if such proof were necessary, the identity of the action of natural and artificial magnets. The identity or oneness of condition of the electric and magnetic forms of power is abundantly manifested. Thus, unlike magnetic lines when end on, and when similar poles are face to face, repel each other ; unlike electric currents when in the same relation, also repel each other ; like magnetic forces when end on coalesce ; like electric forces do the same ; like electric currents end to end, do not add to their sums, and like magnetic lines 'of force do not increase each other ; lastly like currents side by side add their quantities together, and like magnetic forces do the same,"f all of which we have before set forth. * Noad, p. 36. * \ Id. p. 303. % Id. p. 271. 48 CHEMICAL ACTION. Has magnetism any dynamic, mechanical force? Faraday reminds us that when a magnet, either artificial or natural, is in a quiescent state or state of rest the magnetic force exists, is latent in the magnet itself and in the surrounding space just as decidedly and efficiently as when the magnet is excited by any exterior influence. The moment it is so excited its mechanical power is at once manifested. If the like poles of two magnets be approached to each other each repels the other. Metallic contact may be forced but it is not possible to force a contact of the opposing, polar forces. If the positive pole of a natural or artificial magnet be moved at a right angle toward the positive end of a magnetic needle, the needle will be deflected more and more as the approach is nearer. If opposite poles are approached to each other they will draw themselves together and finally clasp and cling to each other with a force that cannot be overcome except by the application of a still greater force. A horse-shoe magnet will draw its keeper to it across a certain distance in space and after contact they cannot be separated except by a force ^eater than the potential of the magnet. Ganot's disk placed in a certain position iii the magnetic field requires a very strong force, com- paratively, to move it. In all these cases a mechanical force is as perfectly exhibited as in the application of steam to the piston of a steam engine. The tail of a cat is a perfect illustration CHEMICAL ACTION. 49 of the mechanical action of magnetism. When the animal is quiet its inertia, its state of rest is perfect. The moment the animal becomes excited by fear, fright or friction, the magnetic force, the mechanical action, is immediately and strongly manifested. The relation between magnetism and chemical action, light and sound has been abun- dantly established by Dr. Thomas Young, Sir Humphrey Davy, Prof. Tyndall, Ganot and others, and Prof. J. W. Draper concluded " that electrifica- tion exercises an apparent control over all the phenomena of capillary attraction." "There are," says Grove, "few if any chemical actions which cannot be made experimentally to produce electricity." In relation to gravitj^ the last of the natural forces we proposed to consider and which Faraday so earnestly but vainly strove to co-ordinate with magnetism and electricity, we can only define it under our hypothesis, as a magnetic force operat- ing constantly in one direction, that is, toward the centre of all suns and planets and the centre of the stellar systems to which they belong. Grove,* can conceive of no other relation be- tween gravitation and other forces, than that it is identical with pressure or motion. Mosotti con- sidered gravitation as identical with cohesive at- traction, and cohesive attraction is closely allied to, * Correlation of Physical Forces, Youman's Edition, pp. 171-3. 4 50 batuhal forces. if not identical with, chemical attraction or affinity. The identity of cohesive and magnetic attraction is strongly indicated by the fact, shown in so many instances where death has resulted from accidental contact with strongly charged electric wires, that if a person seizes such a wire with the bare hand the hand and the wire will be at once so strongly glued, stuck together, that they can only be separated by detaching, tearing the flesh from the hand. We have already noticed a similar effect produced by clasping with moist fingers, an intensely cold wire charged, according to the new theory, with negative magnetism. Pliicker showed that crystalline bodies are definitely affected by, magnetism. " There is scarcely any doubt that the force which is con- cerned in aggregation is the same which gives to matter its crystalline form ; indeed, a vast number of inorganic bodies, if not all, which appear amorphous are, when closely examined, found to be crystalline in their structure. We thus get a reciprocity of action between the force which unites the molecules of matter and the magnetic force, and through the medium of the latter the correla- tion of the attraction of aggregation with the other modes of force may be established." Considering gravity as a form or modification of magnetism we may repeat and add to, the reasons that induce the conclusion that it is so. We repeat the fol- lowing extracts: — I., from Helmholtz : "It has actually been established that all the forces of NATURAL FORCES. 51 nature are measurable by the same mechanical standard and that all purely motive forces" — of which gravity is one — " are, as regards performance of work, equivalent." This is not identity, but it is equivalence, which is of nearly the same value and is more significant than analogy. II. From Leibnitz : " The ultimate source of all motion is the original force lying in all bodies which may be restricted or limited in various ways by the conflict or collision of other bodies. This force lies in all substances and a certain action al- ways arises from it," and also that " the whole in- terchange of forces is simply the result of a greater or less movement on the part of the universal force which everi/ atom possesses, and all forces are there- fore correlated with each other through motion." The very definition of gravity, the attraction of gravitation, indicates its co-relation to magnetism, for there is no other natural force-chemical affinity, cohesion, aggregation and capillary attraction being recognized as correlatives of magnetism — that at- tracts or repels other bodies. The earth, according to Gauss,* as before noted, is an enormous mag- net of immense power. Were not the magnetic force the dominating force of gravitation the planets and their satellites — to revive a very ven- erable idea — could not be retained in their orbits. " The force by which the earth dominates the moon is the same force by which the sun dominates the * Gauss : Intensity of Magnetic Force. 52 NATURAL FORCES. earth and the moon and also all other planets and satelites connected with our system." * To these ex- tracts from Helmholtz and Leibnitz and Gauss we add the declaration of Sir Isaac Newton, made in his famous 3d letter to Bentley, to wit : " Gravity must be caused by an agent acting constantly accord- ing to certain laws ; but whether this agent be mat- erial or immaterial I have left to the consideration of my reader." There is but one force in nature " act- ing constantly " and freely and that is the magnetic force which is the all-sufficient " agent " to cause the constant action of gravity. " However if by this or any other argument you have proved the finiteness of the universe, it follows that all matter would fall down from the outsides and convene in the middle. Yet the matter in falling might concrete into many round masses like the bodies of the planets ; and these by attracting one another, might acquire an obliquity of descent by means of which they might fall, not upon the great central body,. but upon the side of it and fetch a compass about, and then ascend again by the same steps and degrees of motion and velocity with which they descended before, much after the manner that the planets revolve around the sun, but a circular motion in concentric orbs about the sun they could never acquire hy gravity (doner The Italics are ours, emphasizing the fact that * Gauss : Intensity of Magnetic Force. NATURAL FOECES. 53 " gravity alone," in Newton's opinion, could not give the planets a " circular motion" " about the sun." It is evident that the action of gravity con- sidered as mere avoirdupois is zero, except in one direction, and this entirely independent of rotation. We can satisfy ourselves of this fact by the fol- lowing considerations : Let us suppose the sun and all the planets, in their normal condition, to be inclosed in a metallic cylinder, say ten octillions of miles long and standing perpendicular to the plane of the ecliptic, so that up and down shall be above and below that plane. Then let us suppose the space within the cylinder to be converted into a perfect vacuum, and that, at the same instant, the ends of the cylinder shall be hermetically sealed, and further, that the enclosed bodies shall be at once deprived of their magnetic energy and become simply inert. From what we know of vacua, it is certain that the enclosed bodies would begin to fall and would continue to descend until they reached the bottom of the cylinder. If the centre of gravity in each body were below the centre of figure, as it neces- sarily would be, then no rotation or change of direction would be possible. Let us now imagine that, just before reaching the bottom, the cylinder should be instantly re- moved and the magnetism and atmospheric air that had been temporarily removed should be 54 NATURAL FORCES^. instantly restored. Then the released bodies would resume their usual proper motions, rotating on their axes and revolving in their orbits. The tides are a perfect demonstration of the ex- istence of an attracting, drawing, levitating force. Without the direct action of such a force they could not exist. Gravity as mere weight can pro- duce no such effect. Now, since it is certain that unlike magnetic poles attract each other and that we neither know, nor can excite, in matter, any other force that may be inherent in, or can be im- parted to, them that can attract or draw them towards each other, we can only conclude when we see two material bodies so attracted or drawn, that the acting force must be magnetic. Treating of comets, Sir John Herschel says : " Beyond all doubt the widest and most interest- ing prospect of future discovery which their study holds out to us, is that distinction between gravi- tating and levitating matter, that possible and in- disputable demonstration of the existence of a repulsive force co-extensive with, but enormously more powerful than the attractive force we call gravity, which the phenomena of their tails affords." " These forces are specially polar in their action between particle and particle of indefinitely minute dimensions.* We have no knowledge of diUj polar forces except those that are magnetic. * Familiar Lectures, p. 140. NATURAL FORCES. 55 " Solfir light and solar heat," says Tyndall, * " lie latent in the force-gravity — which pulls an apple to the ground." But light and heat are both forms of magnetic force ; hence, if Tyndall is right, the three forces are correlative. | " Created simply as a difference of position of attracting masses the potential energy of gravitation was the original form of all the energy in the universe." If this be true, then magnetism is a correlative of all natural forces. According to KirschofE the sun consists of a solid or partially liquid nucleus in the highest state of incandescence. The number of dark lines measured by Angstrom and Thalen amount to 1000 in which they found a coincidence with the Fraunhofer lines, of more than 460 bright lines of iron. This large preponderance of the most magnetic of substances indicates the strong mag- netic power of the sun. — From the foregoing facts and considerations there seems no alternative left but to conclude that the sun is a magnet. If we concede the sun to be a magnet and gravity to be a form of magnetic force, we have at command an easy solution of all physical phenomena. We are hardly at liberty to suppose that the two last statements above were intended to be of a * Heat as Motion, p. 453. f Thomson and Tait, in Good Words, quoted by Tyndall : Heat as Motion, f). 453. 56 NATURAL FORCES. mere general character, without specific meaning. The distinguished and most competent physicists who made them were specially treating of forces in a most comprehensive manner, Prof. Tyndall of Heat, and Messrs. Thomson and Tait of Elec- tricity and Magnetism. They certainly would not forget a force so conspicuous and important as gravity. TRANSCENDENTAL MAGNETISM. 57 VIIL Transcendental Magnetism; World System; God in Creation ; Swedenborg ; Kant ; Nebular Gonr glomeration ; World-stuff ; Semi-spiritual Sub- stance ; Attributes of God ; Spiritual Effluence ; Primordial Matter ; Rotary Motion ; Spirit, Mind and Matter ; Extra-stellar space. Let us now consider magnetism in what may be termed its transcendental relations, in which we may define it as the connecting link between mind and matter, or rather as the medium by aild through which the Divine Energy is imparted to all matter, is made effective in the outer-stellar spaces when and as far as the Divine Mind shall direct. "We know that magnetic energy is influenced by distance ; that is to say, having a stationary magnet at any given point if we place a magnetic needle near it, two of the opposite poles will be drawn together. Now if we move the magnet away from the needle the magnetic force is dimin- ished as the distance between the two is increased, until, finally, the magnet ceases to attract the 58 WORLD SYSTEMS. needle. The energy of the magnet reaches its limit. If, now, we substitute a more powerful magnet, it will influence the needle at a still greater distance ; and so on indefinitely. Hence if we have a magnet of infinite potency it will influ- ence a needle placed at an infinite distance from it. If we have an infinite spiritual energy influencing any other form of matter than a magnetic needle the result will be the same. We may suppose that the primary exhibition of this energy was an exercise of God's will ; a divine effluence from in- finite power, an emanation from pure spirit. The origin of this, and some cognate ideas, is very old. According to Anaxagoras, B. c. 500, the primitive condition of things was a heteroge- neous commixture of substances which continued motionless and unorganized for an indefinite p^iod. Then Mind began to work upon it, com- municating to it motion and order. The Mind first effected a revolving motion at a single point ; but ever increasing masses were gradually brought within the sphere of this motion, which is incessantly extending farther and farther the in- finite realm of matter." * A little later Leucippus and Democritus — " maintained that space was eternally filled with atoms actuated by an eternal motion. The •weight of the larger atoms forced them down- ward, while simultaneously the lighter ones were * Alex. Winchell : World Life, etc., p. 553. WORLD SYSTEMS. 59 thrust upward. Mutual collisions produced lat- eral movements. Thus rotary motion was gen- erated which, extending farther and farther, occasioned the formation of worlds." These views, somewhat varied, were extended by Epicurus and the Roman poet Lucretius. At a much later date — 1733-1734 — we have the voluminous and complicated speculations of Swedenborg. A very fair summation of them is given in a letter of Mr. T. F. Wright to Prof. WinchelL* as follows : " You will there notice that the idea is that creation is by the self-sub- sisting God ; that His infinite love and wisdom demanded the universe ; that its production was not by extension of the infinite nor by the exten- sion of nothing, but by the determination of the infinite into recipient forms produced by itself by degrees, each of which was the medium of creative energy to that next below ; that this process ter- minated in matter ; that this gradation was, is and always will be, the vehicle of transmission of life from the Divine ; that the preservation exemplifies the creation ; that the production of forms of life on earth was through the production of their spir- itual prototypes when the time came for it in the process of development ; thus, that the evolution was subject at every point to the creative process." Omitting the views of Mr. Thomas Wright, referred to by Kant, we come to the grand the- * World Building, etc., p. 571. 60 WOULD SYSTEMS. sis, the sublime speculations and reflections of Kant himself, to which we have before made slight reference. We make a few quotations from a summary of them given by the late Prof. Alexander Winchell.* " I assume," h-e says, " that all the matter in the solar system, in the beginning of all things, exist- ed dissolved into its elements, and filled the entire space of the system. Its existence is an outcome of the Divine Mind. It was endowed with a ten- dency to form, through natural development, a more perfect constitution." ... " The cosmical fabric, through its immeasurable magnitude and the end- less variety and beauty which shine forth from it on all sides, impresses us with silent amaze- ment. . . ." The stars are centres of other systems like our own. They are composed of the same elementary particles. Like the planets of our zodiac, they are arranged in a limited zone which we style the Milky Way. " The Milky Way is the zodiac of the higher world orders." But even beyond the bounds of the system of the Milky Way, are other firmameutal systems — other Milky Ways. We contemplate with amazement their faint figures pic- tured on the concave vault of heaven. One might * World Building or Comparative Geology, the most excellent and exliaustive treatise on the subject extant, from the standpoint of the advocates of the nebular and vortex theory. GOD IN CREATION. 61 well conceive an endless succession of mutually disconnected world systems ; but such a plan would not provide for the perpetuity of order; and unless the common principle of attraction extended through the entire universe of matter, there would be wanting that character of persist- ence wliich is the mark of the choice of God. But a universal co-ordinating principle implies one com- mon centre, and one vast central mass of matter. Here the process of creation began. From this middle point it has extended continually outward over the infinite chaotic waste of unorganized material atoms. I know of nothing that can lift the soul of man to a nobler amazement than the outlook over this boundless field of Almighty power. Worlds rise into being upon worlds in endless prog- ress ; and beyond other bounds of the widest realms of order, confusion and chaos forever con- tend on a field as limitless as if the work of crea- tion had not already attained an endless develop- ment. Assign whatever diameter we will to the completed creation we are always near the middle point ; beyond the periphery of the sphere, over the infinite expanse, lie buried, in the stillness of the night, the germs of order awaiting the progress of eternity to be quickened into active life. So the process of cosmical organization extends itself. " Creation is not the work of a moment." Millions and mouiitain-ranges of millions of ages will flow away and " the creation never will be complete. 62 GOU IN CREATION. It was indeed once begun, but it will never end." . . . . " Whatever has origin and beginning has in itself the characteristic of its finite nature ; it must decay and come to an end. The infinitude of creation is wide enough to spare a world or a Milky Way as easily as a flower or an insect. Meanwhile eternity is adorned by ever-varying manifestations, because God remains active in the unceasing work of creation." But the vastness of objects and events so enstamped with the charac- ters of change and mutability leaves the soul unsat- isfied ; " it feels a desire to know more intimately that Being whose intelligence, whose greatness, is the 'fountain of that light which, as if from a central source, illuminates the totality of nature." " Happy soul if, amid the tumult of the elements and the ruin of nature, it can look down always from its lofty position, and see the current of desolation which brings ruin to all finite things sweep by, as it were, beneath its feet." " When then the fetters which hold us bound to the vanity of created ex- istence, in the moment appointed for the transfor- mation of our being shall have fallen off, then will the undying spirit, freed from dependence on finite things, find the enjoyment of true happiness in communion with the eternal existence." .... Thus there exists a Being of all beings, an in- finite Understanding and a self-existent Wisdom, from which nature, in the whole aggregate of her correlations, derives existence. nebulah conglomeration. 68 Winchell in discussing nebular heat adopts the general impression that it arises from the aggre- gative process (pp. 93-4) " that the process of con- glomeration affords an explanation of the intense heat which vaporizes " the nebular matter. " But," he says, " even yet the mystery of beginnings hangs over us. We have not yet seen molecules rolling themselves up into visibility. We have never, even in imagination, seen atoms emerging from the dread abyss of nothingness. Let us explain all we may ; let us seek out all antecedent conditions possible, enough still remains to pique our curios- ity and awe us by its mystery. Nay, the farther we trace the links of the chain of causation, the more palpably we feel the need of some support which is not one of the links in the chain, but is superior to the principle of finite causation, and is self-sufficient, existing out of relation to succession, time and space." " It thus appears that the hypothesis of nebular conglomeration explains two otherwise inexplicable phenomena — nebular amorphism and nebular heat. A third phenomenon hitherto mysterious and un- explained is equally accounted for. That is the rotary motion which sometimes arises in nebular masses. This difficulty has often balked belief in the nebular theory of the origin of the solar system." According to Hemholtz,* " the general attractive force of all matter must, however, com- * Interaction of Natural Forces. Youman's ed. p. 331. 64 WOBLD-STUFV. pel these masses to approach each other and con- dense so that the nebulous sphere became incessantly smaller, by which, according to mechanical laws, a motion of rotation originally slow, and the exist- tence of which must be assumed, would gradually become quicker and quicker." Thus he assumes what Winchell claims is unexplained. In a " cosmical speculation " Winchell writes : " The universal world-stuff is scattered generally through boundless space Out of this semi- spiritual substance germinate then the molecules of matter." The dominant ideas set forth in the last few pages are : I. That, scattered through boundless space is a universal world-stuff, a semi-spiritual substance out of which germinate the molecules of matter. II. That from these are formed nebular con- glomerations or masses, accompanied by intense heat. III. That hence resulted rotary motion, a phe- nomenon hitherto assumed and unexplained. IV. That the " mystery of beginnings " still hovers over us. Let us consider them in reverse order. Deity in its essence is inscrutable, in its action not wholly so. We have (supra') referred to the attributes of God, His omnipotence, omniscience and a qual- ified omnipresence. This latter we conceive to be SEMI-SPIRITUAL SUBSTANCE. 65 a quiet cognizance, an elementary consciousness ever and instantly responsive to the Divine Will. It is not nothing, it is an emanation from the God- head, an effluence from the Divine embodiment, the spiritual, personal magnetism of Deity. We have its analogue in the Saviour's life. " And Jesus said. Somebody hath touched me, for I perceive that virtue hath gone out of me.* As many as touched his garment's hem were made perfectly whole." f It is the infinitesimal something from which primordial matter is evoked or evolved, it is the primary element of creation, it is the germ of every material growth from the atom to the molecule, from the molecule to the mountain, from the mountain to the star. It is the life principle of every living oi'ganism since no such organism can exist independent of its agency. There is but one force or form of energy that can fulfil these conditions. It is magnetism. As bearing upon this point we make an extract from the interesting work J of Dr. James R. Nichols, noticing the death of a patient of the late Dr. Clark of Boston, as described in an essay entitled " Visions," to which Dr. Oliver W- Holmes wrote an introduction. Dr. Clark says that the lady " after saying a few words, turned her head upon her pillow as if to sleep ; then unexpectedly turning it back, aglow, brilliant and beautiful exceedingly, came into her features, her eyes opening, sparkled with singular vivacity ; at the same moment, with * St. Luke viii. 46. t St. Matthew xiv. 36. t Whence, What, Where, Boston, 1883. 5 66 SEMI-SPIRITUAL SUBSTANCE. a tone of emphatic surprise and delight, she pro- nounced the name of the earthly being nearest and dearest to her, and then, dropping her head upon her pillow as unexpectedly as she had looked up, her spirit departed to God who gave it. The con- viction forced upon my mind that something departed from her body at that instant of time, rupturing the bonds of flesh, was stronger than language can express. " Dr. Holmes referring to this case says, " Dr. Clark mentioned a circumstance to me not alluded to in the essay. At the very instant of dissolution, it seemed to him, as he sat there b}' the dying lady's bedside, that there arose something, — an undefined yet perfectly apprehended somewhat, to which he could give no name, but which was like a depart- ing presence." Dr. Holmes further says, " I should have listened to the story less respectfully, but for the fact that I had heard the same experi- ence almost in the same words from the lips of one whose evidence is to be relied upon ; with the last breath of the parent she was watching, she had the consciousness that something arose, as if the spirit had made itself cognizable at the mo- ment of quitting its mortal tenement." Let us now express in our human phraseology the condition and action of the primary forces. Deity is the grand centre and positary of all forces, all forms of energy, a force and energy that are immanent, ominant, positive. Here then is our omnipotent magnet. Its spiritual effluence goes out and is diffused in all directions. As its dis- tance from the grand centre increases, its potency, SEMI- SPIRITUAL SUBSTANCE. 67 by a divinely imposed condition, is diminished; it grows less and less until it becomes a negative force. As the distance between the asymptote and curve of the hyperbola constantly diminishes but never becomes zero, so this divine effluence constantly diminishes as it retreats from its central source but never reaches zero, although it ceases to be luminous. Sir Isaac Newton -wrote as follows, Principia, Book III., p. 314. " And now we might add some- thing concerning a certain most subtle spirit which pervades and lies hid in all gross bodies, by the force and action of which spirit the particles of bodies mutually attract each other at near distances and cohere if contiguous ; and elective bodies operate to greater distances, as well repelling as attracting the neighboring corpuscles ; and light is emitted, reflected, refracted, inflected and heats bodies ; and all sensation is excited, and the mem- bers of animal bodies move at the command of the will, namely, by the vibrations of this spirit, mutually propagated along the solid filaments of the nerves, from the outward organs of sense to the brain and from the brain to the muscles." His theory of the emission of light, however, has been superseded by the undulatory theory. We have quoted the views of Swedenborg and Kant concerning the evolution of matter through the agency of the Divine Will, which all philoso- phers and physicists admit to be the sole and cen- 68 ATTRIBUTES OF GOD. tral source of all power. The nidus of the natural forces is magnetism. Its action and functions are regulated by fixed laws. A distinguished poet and essayist * writing without a scientific purpose sets forth some important scientific truths, namely : " Everything in nature is bipolar or has a positive and negative pole. There is a male and a female, a spirit and a fact, a north and a south. Spirit is the positive, event the negative pole. Will is the north, action the south pole." Let us imagine Deity, Infinite Power, as occupy- ing alone infinite space, a condition that is conceiv- able. Says Sir Thomas Browne : f — " Before the creation of the world God was really all things." " Before the mountains were brought forth or ever the earth and the world were made, thou art God from everlasting and world without end. J If this condition had continued and God had remained inactive there would have been no entity inde- pendent of his personality. A limited portion of space could have been occupied only by the radi- ant undulations of the Light Ineffable. How, then, came matter? By the action of God's will upon the spiritual effluence from the Godhead. Matter is the incarnation of Spirit, as is irrefutably proved by the birth of the Saviour, who was con- ceived by the Holy Spirit and born of a Virgin." * R. Waldo Emerson : Essay, Character, t Religio Medici, p. 374 Bohn's Edition. i Psalm xo. V. 2. SPIRITUAL EFFLUENCE. 69 Treating of " Life in Matter " Lotz writes : • "With this hypothesis of unextended atoms, we have removed the only difficulty that could prevent us from giving ourselves up to the thought of an inner mental life pervading all matter. The in- divisible unity of each of these smiple'l&eings, that in it the impressions reaching it from without are condensed into modes of sensation and eiijoyraent. All that stirred our interest in the content of sen- tience may now have a place of objective existence in these beings, and numberless events ascertained, not directly by sensation, but on the circuitous path of scientific investigation, need not now be lost, but may, within the substances in which they occur, be converted into much glow and beauty of perception to us unknown. All pressure and ten- sion undergone by matter, the rest of stable equili- brium and the rending asunder of former connec- tions, all this not only takes place, but also in tak- ing place gives rise to some enjoyment, each several being entwined with various reciprocal actions into the whole of the world, is, in the words of our greatest national thinkers, a mirror of the universe, from its place feeling the connection of all things and representing the special view which it yields to that particular place and standpoint. No part of being is longer devoid of life and animation ; only a certain kind of activity, the motions which adjust the states of the one to those of the other, * Microcosmos, Vol. I. Book III. Chap. IV., p. 360. 70 SPIRITUAL EFFLUENCE. are twined like an external mechanism through the fulness of the animated oration, conveying to all, opportunities and incitements to the various development of the iimer life. " In this sketch," he says, " we indicate a concep- tion of whose spiritual truth we are convinced, yet to which we can hardly expect any further concession . than, that among the dreams of our imagination it may be one of those which do not contradict actual facts." * How completely and admirably the spiritual, transcendental magnetism fulfills these condi- tions and energizes the vital links of the chain that binds every organism to the Omnipotent Will. Hence the evolution of the universe. Hence also, by the further exercise of the Divine Will' organic laws were established in accordance with which every combination of matter, solid, liquid and gaseous, and every form of life, animal and vegetable, was developed. Says Hegel : f " The whole normal process of history, to which all the life of man, in Family, in Civil society and State, is organic, consists in the progressive realization of concrete human freedom, that is, of the essential spiritual nature of man through the conscious recognition of God as the *Microcosmos, Vol. I. Life in Matter, Book III. Chap. IV. p. 360. t Ethicality, § 270. SPIRITUAL EFFLUEXCE. 71 foundation of all the true life of the human spirit, and of the Divine Will as the true substance or content of the human will. In the whole process of history or of the ' ethical world,' humanity is progressively learning, and showing that it is learning, that its true language is ' Lo, I am come to do Thy will, God.'" He also writes : * " History is the formation of spirit into deed, into the form of immediate actual- ity. Hence the phases of the development as im- mediate natural principles." Star-dust, world-stuff, suns and planets were first developed. In due time, after these last were sufficiently matured, the various forms of life were evolved, the lower forms first and these succeeded by the higher, the last and highest being man, who derived his spirit, his mentality, direct from Deity. " The spirit of man is the candle of the Lord." Prov. XX. 27. " The spirit itself beareth witness with our spirit that we are the children of God." Romans, viii. 16. " There is a spirit in man and the inspiration of the Almighty giveth them understanding." Job, xxxii. 8. " And I will put my spirit within you and cause you to walk in my statutes." Ezl. xxxvi. 27. " — for the spirit searcheth all things, yea, the deep things of God." I. Cor. ii. 10. After referring to birds, fishes, other aniinals * Ethicality, § 346. 72 MIND AND MATTER. and man, the Psalmist says (civ. 30). " Thou sendest forth thy Spirit, they " (men and animals) " are created." The mental power in man is called reason, in brutes, instinct. They are the same in kind, dif- ferent only in degree. Man exercises his instinct before he does his reason. He first gains knowl- edge by experience and afterward by observation and instruction. If this were not true he could exercise no influence, could gain no control over other animals. He could establish no friendly re- lations with them. He could not even teach a dog his name. There could be no trained ele- phants, no trick horses or mules, no tame lions or tigers, nor any talking birds. There are innumer- able authentic records of the reasoning, logical capacity of animals, of their friendly and disinter- ested actions. Thus in relation to mind and matter we have given a conceivable explanation of the " mystery of beginning " referred to (supra) in paragraph IVi" It will also serve to elucidate paragraph If as to "world stuff" and " semispiritual substance." Paragraphs lit and III+ relate to the intense heat produced by the conglomeration of nebular masses and the resulting "rotary motion." In our own stellar system we know that outside of the atmos- pheres of the sun and the planets the space is totally dark and intensely cold. This must also be true in the intei.stellar space in all stellar systems. EXTItA-STELLAR SPACE. 73 And this condition must be more emphatically true of the extra-stellar space, since there is there, no matter, nothing to be consumed or to be sub- jected to frictional force except the spiritual efflu- ence above noted. Necessarily it is impossible that any heat should be evolved. The darkness and the cold are at their maximum. Neither is there any rotary motion except as we will endeavor to explain. Sir Isaac Newton inferred "from some crude observations " that the power of a magnet decreases in the triplicate ratio of the distance. At a more recent period Coulomb has shown that the law of attraction and repulsion is inversely proportional to the square of the distance. Magnetism, how- ever, as a terrestrial force is very eccentric in its action and is manifested in many ways and under many peculiar conditions by reason of its connec- tion with the densest forms of matter. In the celestial space it is more uniform in its action. How then did the Divine mind secure the develop- ment of " a more perfect constitution " and subject it to the " working of a single general law ? " We know that the potency of a given magnet is dimin- ished according to a fixed law. When the potency has reached its limit it becomes negative. If now a stronger force be applied to the border-limit of this exhausted force its action will be renewed and this action will be directly proportional to the force applied. 74 BOTABY MOTION. Let us now suppose that the divine effluence is diffused in all directions to such limit as God chooses to assign and that, when by His Will it is energized into matter, he then imparts to every atom of matter its potency, its affinities and its function. Some of the atoms are positive, some negative, some diamagnetic and some of them, like nitrogen, are neutral. Although all matter is more or less magnetic, still in all forms of matter some molecules are more highly charged, are more potent than others. So also there is a wide differ- ence in the chemic force of different molecules and the faciUty with which they unite. Some require more or less time to effect a thorough combination, less time for a simple mixture. Consequently when two molecules are attracted to each other the instant they come in contact a gyratory motion ensues the direction of which is determined by the most potent molecule which is almost invariably positive. Thus motion is set up, friction occurs and heat is developed. The two tjombined atoms in their course meet with a third atom having an affinity for one of them ; it at once unites with the pair and joins in the gyratory evolution. Thus agglomeration is effected, motion and heat increase and finally, under the operation of fixed laws and with the lapse of time, worlds are developed. Suns and planets are formed. They are moving in space in obedience to a single form of energy and all of them in one direction, from left to right and with ROTABT MOTION. 75 a rotary motion. Thus we have shown the origin of that motion which, according to paragraph III. (^supra) has been "hitherto assumed and unex- plained." We will now state the facts that furnish irre- fragable proof of the truth of our conclusion. All the planets revolve in their orbits from left to right. The sun rotates on his axis in the same direction. All the planets except Uranus and possibly Nep- tune rotate on their axes in the same direction. All the satellites revolve in their orhits in the same direction, those of the planets Uranus and Neptune excepted. The moon rotates on its axis in the same direc- tion and no satellite is known to have an axial rotation in a contrary direction. If a magnetic current is made to descend, from the North Pole a magnet placed vertically, it will rotate the pole from left to right. If a magnetic line of force moves from the North Pole along the path of a polarized ray of light, it will rotate the ray in the same direction. Water discharging from faucets or other aper- tures, or escaping from funnels, wash-bowl or bath-tubs, invariably gyrates from left to right, provided the edges and inner surfaces are smooth ; and it is immaterial what the shape of the aper- ture is. If two different liquids or gases, having mutual 76 BOTART MOTION. affinities, are presented to each other they unite and rotate from left to right. The gyration of liquids may be shown by drop- ping a tablespoonful of dark-colored French brandy into a tumbler of water. When molecules of oxygen and hydrogen — both permanent gases — come in contact, combination is readily effected, aqueous vapor is formed, and by the high diffusive power of hydrogen is rapidly diffused in every direction, resulting ultimately in rain-drops and fresh-water rivers and seas. The addition of sodium — one of the most abundant of the natural elements — and chlorine develops the salt seas and oceans. Oxygen being strongly magnetic, determines the left-to-right gyration of the compounds. ROTABT MOTION. 77 IX. Experiments in Magnetism. — Effects of Cold; San- itary Effects; Effect on Crroiving Plants; On a Steel Spring ; Hunting Bogs; The Sense of Smell ; Birds of Prey ; Vis-viva of Soaring Birds ; Keenness of Vision ; Sense of Touch ; The Horse. Having a small horse-shoe magnet, and wishing to test the effect of temperature upon it, I attached to the keeper — a small thin piece of bright iron — by a silk thread, a small basket, in which I put as many shot as the magnet could sustain, the basket and shot weighing ten ounces. The thermometer in the room standing at 70° F. in a cold January evening I put the magnet outside on the window- sill, where the mercury stood at 10° F. Taking it in early the next morning it. sustained 4 oz. addi- tional weight. I tried this experiment repeatedly, the volts always increasing as the temperature decreased. Possessing a Kidder battery of 5 cells by the use of three and four of them when troubled with catarrh and weakness of voice, both were re- lieved and strengthened at once by application of the electrodes, covered with moist sponge, to the 78 EXPERIMENTS IN MAGNETISM. throat. Weakened vision was also strengtliened by application of the same electrodes to the eyes. Desiring to test the effect of magnetism on growing plants, I selected in a conservatory two pots of colias, the plants of the same age and size, with variegated leaves in high colors. Having thoroiighly pulverized a strong lodestone, the plants were removed from the pots, fresh earth put in, and a cavity scooped out in the centre. The roots were placed in this cavity in each pot, one of them properly packed with a mixture of six parts of rich earth with one part of com- minuted lodestone, and the other with the rich earth only. They were placed on the bench in their usual position and treated alike. In three months the first was more than one-third larger than the other, and the color in the leaves was brighter. I then selected four pots of the same size, filled them nearly full of rich earth and scooped a cavity in each one. In the first I put 6 grains of wheat, in the second 6 grains of rye, and covered both with a mixture of 1 to 8 of rich mold and pulverized lodestone. In the other two I put wheat and rye in the same way and covered them with rich loam only. The four pots were set to- gether in the open air and treated alike. The grain in the lodestone pots germinated earliest, grew most rapidly, was tallest and of brightest color. As the pots were not large enough to mature the stalks, no grain was produced. EXPERIMENTS IN MAGNETISM. 79 Two years after our experiments, we found the following item in a public journal : " M. SpechnefE, a Russian agriculturist, electrified the seeds of peas, beans and rye, for two minutes, by passing a current through them. The result was that the plants which sprang from the seeds thus treated were much more vigorous than those from unelectrified seeds. He also electrified the soil by burying plates of zinc and copper in it so as to make what is called an " earth battery." The plates were connected above ground by an iron wire. The result was an astonishing crop. A radish grew over seventeen inches in length and five and one-half inches thick ; a carrot grew ten and one-half inches in diameter, and weighed six and one-half pounds." Another of our own experiments was made with a steel spring 21 inches long, f of an inch wide and 1-64 of an inch thick. It was marked off into 3-inch spaces. Each division mark was lightly touched with the positive end of a lode- stone hammer 2i inches long and weighing i of a pound. The needle of a small pocket compass responded to each division mark. After a touch of each mark with light pressure the needle vi- brated more actively, and after a small tap on each mark the needle was rotated entii'cly around at each division line as the compass was moved from end to end of the spring. After several smart raps in quick succession, the needle was still more 80 EXPERIMENTS IN MAGNETISM. vigorously rotated. I treated both arms of a car- penter's iron square in the same manner with the same result. This experiment in connection with the experi- ments recorded on page 39 suggested the probable action of hunting dogs in pursuit of game. The earth and all vegetable fibres are conductors. The fox or the hare when not alarmed travel leisurely- over the roads, across the fields and through the woods, making an impact on the surface such merely as their weight would give. When alarmed they start upon a run and a smart blow is given at every leap. So, when the hound first starts out for the game he moves cautiously in different directions until he gets the clew, then he advances a little more confidently until he recognizes the stronger track, when with his utmost vigor, he runs rej-nard or the hare to cover or the ground. The terrier does the same for the rodent and the pointer and setter secure their game by the exercise of the same faculty. We know that both the dog and the cat are very magnetic animals, as we may readily infer from their physical constitution. Oxygen, the most magnetic of all gases, is found in the blood of all animals, and Speilman found in the ash of brain — substance particles of matter that were attracted by the magnet-iron or manga- nese — and Laer found peroxide of iron, 0.5 to 1.85 in hair, indicating its magnetic character. We also know that the sense of smell in some dogs is EXPERIMENTS IN MAGNETISM. 81 very acute. Every one who has had experience with hounds and terriers, pointers and setters has observed this fact. He has seen a hound or terrier in full chase on a certain line, halt instantly, change direction and pursue the new course with the same speed and confidence, even when he doubles on tire track of the game. There seems no explanation of this except that their nasal organs are most sensitive magnetic poles, and that, with the wisdom of unerring instinct they " follow their noses." " Reason," says Burke, " often errs ; instinct never." But there is a perception, an instinct still more acute than this. We know with what rapidity and how extensively odors are diffused through the gases and through the atmosphere, many gases being themselves highlj' odoriferous and penetrat- ing. Here we have, apparently, a key to another of nature's secrets ; that which enables birds of prey to find their game and animals to seek each other's society. The eagle, the hawk and the raven follow, with unerring certainty, the track of death and decay. It is an impressive sight to watch the eagle, as we have repeatedly done,' when he leaves his eyrie to seek food for himself and his royal mate, wlro is attending to her domestic duties while incubating the eggs that are to furnish the heirs to the lofty throne. Leaving his perch ])e sweeps from it as a centre in a wide liorizon'^'il curve, perhaps ten miles in diameter, wliicli serv(3s 6 82 EXPERIMENTS IN MA GNETISM. as the base of a spiral in which he continues his flight constantly ascending, each curve being more contracted than its predecessor until he suddenly leaves it and strikes a tangent downward for a distant point. One of two reasons has determined his course. He has two senses of great penetrat- ing power in his eyes and nostrils. In his upward flight both are intensely active, the first in search- ing for fields where lambs, hares, fowls or other small game may be seen ; the other to detect odors that are in the air. If he sees the game he starts directly for it ; if he detects an odor he follows it to the carrion from whence it emanates. The soaring flight of the condor, the eagle and other birds of prej"^ furnishes peculiar and interest- ing evidence of an inherent energy that produces motion without apparent action. The eagle while performing his spiral ascent vibrates his wings only in the first few curves of the spiral, after which by some magnetic vis-viva he literally soars upward with outstretched wings. When he first turns on his tangential flight he vibrates his wings for a moment, then bringing them to a poise, he rushes down with a constantly accelerating ve- locity. The condor's long-sustained soaring and floating capacity is well known. No more delight- ful, exhilarating and less fatiguing mode of motion can be imagined. It is not surprising that the popular fancy should suppose wings to be the motors of the angelic host. EXPET! IMEN TS IN M A G NETISM. f i ?, The hawk is apparently more indebted to his eyes than to his nostrils for his supply of food. I saw an interesting instance of this while standing on the bridge over the rapids of the American channel in the Niagara River just above the Falls. A fish hawk soaring some 1200 feet above, suddenly descended into them, seized a mullet some six or eight inches long and rose again into the air. After reaching an altitude of eight or nine hundred feet he lost his hold on the fish, which, of course, began a fall of constantly increasing velocity. The hawk instantly turned in pursuit and recap- tured the fish before it struck the water. As his .wings were folded this violation of the laws of gravity must have been due to the fact that the bird, the living matter, exerted some inherent power, some natui'al vim that enabled it to accele- rate its downward motion while, at the same time the distended air bladder of the fish may have slightly retarded his motion. St. John de Creve ■Coeur in his "Travels " in upper Pennsylvania in 1798, describes a similar scene and gives a pictorial representation of it. A hawk, having risen in the air with a fine pike, is set upon by an eagle and compelled to drop his game, whereupon the eagle starts for and secures it before it reaches the water. In these cases the birds may have been aided by a magnetic vis viva different from mere gravity. The horse gains knowledge both by touch and 84 EXPERIMENTS IN MAGNETISM. smell. If he fears, or has an aversion to any- particular object, as a buffalo-robe or open umbrella, let it be carefully, gently presented, to him so that he can touch it with his lips and smell it at the same -time, and his fears will be quieted, never after to be excited thereby. His lips are his fingers. If he fears a pokerish stone or stump, let a man sit upon, or stand near it, and make any motion that will indicate his presence, and the horse can at once be led up to it, as we have proved experimentally. The inter-cranial organ of smell is more largely developed in the lower animals than in man. In birds, however, it is very small and hence its acuteness with them is the more remarkable. It is also remarkable in some aboriginal races. Humboldt informs us that the Peruvian Indians know by smell when a stranger is approaching, and before he is sufficiently near to note his complexion, whether he is a European, or an Indian or a Negro. Late experiments in hypnot- ism prove that the sense of smell is greatly intensi- fied in those who are subjected to its influence. The experiments of Charcot and Bernheim in France and of Braid in England have shown some astonishing developments. In one case a visiting-card was torn into strips and given to a lady who was hypnotized, her eyes being closed as in sleep. After she had smelt repeatedly of one of the strips, they were all hidden EXPERIMENTS IN MAGNETISM. 85 in different places in another room, more than forty feet distant. She then found them all, smelt of each piece, placed them together in proper order and read correctly the name on the card. 9.Q EXPERIMENTS IN MAGNETISM. Force; Unergy. In treating of the influence to which matter is subjected in order to produce changes in its posi- tion, condition or action, we use tlie term /oree, not because, in all cases, it is most appropriate, but because it is appropriate in the greatest num- ber of cases, and for the further reason that it is already habilitated in the vocabulary of scientific terminology. Mayer's definition of " force " is " something which is expended in producing motion." English physicists propose to condense this into the single word " energy " and to allow the word " force " to retain the meaning which it bears in common language. Energy, however, is, scientifically, more exact. In our citations we have set forth quite fully the strong conviction entertained by the most eminent physicists that there must be a unification, so to speak, of forces, and that there must be one predominating force of which all the othei'S are modifications or variations, and we quoted the FORCE, ENERGY. 87 arguments and facts designed to establish this postulate. Of course the grand, primeval origin and source of all power, of all force, is the everlasting, al- mighty, omniscient God. Says Meyer — " Force of Inorganic Nature " — " The first cause of all things is Deity — a Being ever inscrutable by the intellect of man." All other powers and forces of every kind, form and degree are derived from this one supreme force, and are differentiated from it by certain fixed, unchangeable laws — unchange- able except by the will of the Lawmaker. Among these are the forces of nature, so called, which we are permitted to investigate, analyze and utilize. In treating of magnetism, we specialized and emphasized its power, its condition and its action, and particularly its correlation with other forces, We showed its universality, its presence and in- fluence over all forms of matter, its constant, in- herent energy, attractive and repulsive, accretive, disruptive and explosive ; the amazing and in- dissoluble connection between its poles, the im- possibility of producing one of them without at the same moment producing the other, and the marvellous range of activity between these two extremes from the faintest spark of the Leyden jar to the thunderbolt that rends the mountain and shakes the earth ; from the slight chill that con- denses the dew-drop to the intens.e temperature that solidifies the mountain torrent and builds up 88 FORCE, ENERGY. the resistless glacier that plows its rocky furrow dovm the mountain side. The conclusion at which we arrive is that all the other forces of nature are, more or less, de- pendent upon this force, whether considered as a monad or a dyad, and that all the other natural forces, electricity, light, heat, gravity, sound, chemical affinity, capillary attraction, repulsion, attraction, disruption amd explosion are modifi- cations of it, or are influenced by it. Some physicists prefer to assign this predomi- nance to electricity. It matters little what we name the first term of the series provided we get correct results. Faraday proved the actions of magnetism and electricity to be alike and calls them " analogous." Grove proved the same fact and calls them "correlative but not identical." " But," says Helmholtz,* " there are still other natural forces which are not reckoned among the purely moving forces — heat, electricity, magnetism, light, chemical forces, all of which stand in manifold relation to mechanical processes. There is hardly a natural process to be found which is not ac- companied by mechanical actions or from which mechanical work may not be derived.'' The agency of heat in nature is almost universal, and it either primarily occasions or materially in- fluences all the different changes that take place upon our globe. * Popular Sci. Lee. translated by E. Atkinson, p. 163. FORCE, ENERGY. 89 " It is capable of altering most of the colors of bodies, and it is perpetually producing numerous decompositions and new combinations upon every part of the surface of the globe. * We have before shown (p. 70) the action of magnetism on vegetable colors. There are results that can be produced by magnetism that cannot be produced by electricity. But there are two other cardinal facts which effectually differentiate the two forces. The first is, that electricity, except in its modified form of heat or light, cannot traverse a vacuum. It may be forced through, but cannot freely traverse it. This magnetism does in any vacuum however perfect." The second grand fact is that we can get no electric action unless we manufacture it so to speak. [This will be deemed utterly erroneous by those who claim that " electricity is never created or destroyed " but " is simply moved and strained like matter." Is it then matter or analogous to it ?] Two or more substances are indispensable and must be used to secure electric action. If it is desired to obtain currents of frictional electricity the amber, the sealing wax, the glass rod, the silk and woollen fabric must be procured, and then the necessary physical force must be applied to develop the currents. Another method of producing the electric current is through the proper arrangement and physical manipulation of the Voltaic pile. * Sir H. Davy, Works, Vol. II., pp. 393-97. 90 FORGE, ENEBGT. If the static or Faradaic current is sought, the me- tallic cylinder, the iron core, and the silk-covered copper wire to form the coil must be prepared and properly arranged, then the manufactured battery must be connected before the current can be gen- erated. With a little less labor, but still labor, a current can be obtained by induction or by impact. In all these cases it has been necessary to manur facture the electric action, or obtain it by artificial appliances. But the magnetic force, magnetism, is self-exist- ent, constant, alwaj^s readj'-. From the sun, the lodestone, the atmosphei'e, the earth, it leaps in- stantly into life under proper conditions, manifests its presence and performs its work, on the land, in the sea and in the sky. The sphere of its activity is everywhere, in everything, in all conditions of life and in all forms of matter. It pilots the mari- ner safe through the stormiest seas in the darkest nights ; utterly blind itself,-it safely leads all who see ; it clicks the seconds on the clock of time and with invincible power and unfailing constancy it swings the pendulum of eternity and wlieels the planets in their orbits and the stars in their courses. With its mighty arms extended from a common centre, with its positive right hand and its nega- tive left, it rotates around each other, orbs that are billions of miles apart. And yet, for centuries men have debated whether it "acts at a distance " or can be considered as a physical force. Faraday, FORCE, ENERGY. 91 having the courage of his convictions, pronounced it a force and demonstrated the existence of " phys- ical lines " of " magnetic force." His great con- temporary, Mr. Clerk Maxwell, who demonstrated mathematically the correctness of Faraday's pro- positions, advanced a step farther and hints at its existence, in a certain sense, as matter. These are his words : " lu fact a theory of magnetic matter, if used in a purely mathematical sense, cannot fail to explain the phenomena (of magnetism) under cer- tain conditions." * If it is not matter it is inher- ent in all matter. If it is not force, or energy, it is absolutely essential to the efficiency of all force or energy. " In heat of varying temperatures different de- grees of magnetic force are manifested. It is al- ways magnetism either active or latent." Faraday showed that " iron and nickel, when heated to a degree far above that required to render them in- sensible to an ordinary magnet, still pointed axially between the poles." And we may again call to mind Faraday's declaration that oxygen is- a mag- netic substance, its magnetic force being in propor- tion to its density. Hence if it were absolutely solid it would be the most perfect of lodestones. " In warm-blooded animals it is more or less active ; in cold-blooded animals more or less latent." If our conception — mark the if — of the nature of magnetism be accepted as correct, we may study * Elec. and Mag. Vol, II. p. 6. 92 FORCE, ENERGY. the correlation of other forces with it. Light is reflected magnetism. Projected from the sun it passes through the total darkness of the ether and the partially rarefied gases lying between the at- mosphere of the sun and the earth and is only made manifest when it strikes the earth, whence it is reflected back, makes our atmosphere, and the hemisphere of the earth exposed to the sun is al- ways luminous — solar light. Electricity is coiv- densed magnetism. It is identical with light dur- ing its passage through the ether. The resistance of friction condenses it and converts it into caloric. The more obstinate and complete the resistance the more intense is the caloric produced, as is abundantly demonstrated by the electric arc light. The intensest power of magneto-caloricism is ex- hibited in disruptive dischai'ges. We have stated in our preface that, after finish- ing our notes on the properties of magnetism, we had seen, for the first time, Hodge's Modern Elec- tricity, in which he says, p. 123 : " The commonest way in which electricity makes its way through a gas, setting aside the mere mechanical conveyance by solid matter, is that of disruptive discharge." This is especially true of nitrogen. Further, he says : " The atoms of a particular substance — iron, for instance, or zinc — have an electric whirl " — magnetic, we should call it — " of a certain strength circulating in them as one of their specific physical properties." (P. 149.) We FOnCE, ENERGY. 93 can predicate nothing concerning physicality, if we may use the term, nor of materiality independent of matter. All matter can be infinitely ex- panded and rarefied, or compressed and condensed. We know that magnetism, light, sound and elec- tricity, since Hertz's experiments, can be com- pressed, condensed, and reflected or refracted. 9i DISRUPTIVE FORCE. xr. Disruptive Force. The most terrific results of the magneto-calo- rific force are manifested in disruptive discharges. The " freaks of lightning," as they are veiy appro- priately called, are of frequent and familiar occur- rence, and often of a most singular character. At times, several persons standing near each other are all instantly killed. Again, a mother, sitting with a child in her arms, is instantly killed, while the child remains uninjured. A large mass of material in a building or other form is, in a few moments, reduced to ashes. Again, another mass of matter is instantly shivered into fragments, without a sign of ignition on any of them. Harris reports the case of an English ship, whose main-mast, weighing 18 tons, was three feet in diameter, 110 feet long, and strongly bound with iron hoops, some of which were half an inch thick and five inches wide, yet it was shivered to pieces by an electric bolt, and the hoops burst asunder and scattered around amidst the fragments of the mast. DISRUPTIVE FORCE. 95 We were once within a few rods of a beautiful pine tree, 50 feet high, with a bole 16 inches in diameter, a wide-spreading, ovate top, standing near a rustic walk. A thunderbolt, that shook the buildings in the vicinity, reduced it instantly to fragments, not one of which was equivalent to a piece a foot long and an inch in diameter, and not one of them was even scorched. The bolt sometimes produces clairvoyant effects. There is an authentic account of an intelligent farmer, who, in a cloudless day, was leading his saddled horse across a pasture. A thunderbolt burst suddenly over his head, instantly killing his horse, gave him a shock that threw him to the ground, but did him no injuiy. His eyes were closed, but his mind was perfectly clear. Through thtf back of his head he saw the horse fall, and could see objects all around while the shock lasted. The fact that nitrogen, in some form, is the chief ingredient in artificial explosives seems to confirm the belief that it is largely present in thunder- bolts. Confirmatory of this view is the fact stated (^seq., p. 129), that, the higher we ascend from the earth, the more nitrogen and the less oxygen we find. Earthquakes, tidal-waves, cloud-bursts, cyclones and hurricanes, all are results of the disturbance, greater or less, of the earth's magnetic equilib- rium, external and internal. When sun-spots are 96 DISR UP TIVE FOR CE. largest and most active, and when the sun and moon are then in conjunction with the earth, this disturbance is at its maximum and its effects are most destructive. And there is every reason to believe that this disturbance is increased by the vast number of iron and steel rail-tracks, telegraph, telephone, electric and trolley wires running in all directions over the land and under the water in all parts of the world. Very strong, almost conclu- sive evidence of this fact, is found in the greater frequency of magnetic storms, cyclones and hurri- canes, and the less frequent displays of the Aurora Borealis. These two last phenomena — cyclones and hurricanes — are exhibited more frequently by day than by night. It would be interesting and useful if the Weather Bureau would systemati- cally note their recurrence, as also the auroral displays. LIGHT— WHAT IS IT f 97 XII. Light — What is it f Light is the most wonderful, beautiful and use- ful of all the phenomena of the universe. The an- nouncement of its origin is the most sententious, sublime utterance in any language. Gtod said, let there be light, and there was light. There could be neither tree nor shrub, neither bud nor blossom nor fruit, without light ; the earth would become a desert without light; there can be no color re- vealed to us without light ; the seven-fold glory of the prism could not be developed without light ; the richest odors are born of light. The fragrance of hot-house flowers is far inferior to that of those which lift their fragrant palms to the cloudless blue. Light paints the lily, perfumes the violet, and gives its blush to the rose ; it flashes in the diamond and nestles in the ever-changing tints of the opal ; it reveals the bloom on beauty's cheek, and beams in the love-light of her eyes ; it glows in the early dawn, and robes in a blaze of glory the sunset hour; it portrays, actinically, each feature 7 98 LIQB T— WBA T IS IT? of the warm summer landscape, and glorifies the foliage of the autumn woods ; it fills, like a bene- diction, all the air of a sweet Sabbath in June ; it fairly revels and dances in the gorgeous plumage of birds and the brilliant scintillations of insects' wings ; it sparkles in the morning dew-drop, and, with all the rich, prismatic hues, it portrays upon the rain-drop screen the sign of God's eternal cove- nant of peace with man. We know it in more phases and it blesses us in more ways than any of the other phenomena of nature. And yet, what is it? If an individual could be miraculously endowed with a body that he could move in any direction by his own will, and a mental power that could continue active and efficient under all conditions and that could endure all possible alternations of temperature, if such a person at noon, on a cloud- less day were to start directly toward the sun, shining in all its meridian splendor, what would be his experience ? After leaving the earth he would feel the pleasant excitement of a bird on the wing until he reached an elevation at which the air, becoming more rarefied by the loss of one proportion of its oxygen, would become converted into exhilarating gas, since the higher we ascend the more nitrogen and the less oxygen we find. Breathing this in the mild radiance and soothing serenity of the charming temperature, he might believe that he had reached the Elysian fields. LIGHT— WHAT IS ITf 99 But as he pursued his upward journey, the air, according to the present theory, would become still more rarefied, and if he were in his normal condition, the blood would ooze from every pore in his flesh and dissolution, with swift descent earthward, would follow. But, preserved by his miraculous endowment, he would continue his ascent and soon reach a region where the air is still more rarefied and the light would begin to fade out of it, turning first to a ghastly white, then to a steel blue, then to a violet, then to in- digo and finally to the blackness of darkness. Then too, being marvellously sustained, he would find himself intensely cold, in an atmosphere in which Icarus might have safely used his waxen wings. Nevertheless he would be cheered by a faint gleam of light, because the dark rays which are streaming towards the earth from the sun would be intercepted by his body and he would be surrounded by a halo, a slight luminous atmos- phere. " However intense a beam of light may be," says Tyndall (743, Heat as Motion), " it re- mains invisible unless it has something to shine upon to reflect it." Again (753), "the blue light of the sky is reflected light, and were there nothing in our atmosphere competent to reflect the solar rays, we should see no blue firmament, but should look into the darkness of infinite space." Our aerial traveller will soon find himself within the resplendent atmosphere of the sun. What 100 LIGHT-WHAT IS IT? force carries the light rays through the " darkness of infinite space ? " Let us emphasize this su- preme, cardinal fact ; that there is but one indepen- dent self-acting force that can accomplish this result. That force is the magnetic force. If the light of all suns were extinguished the planets would still continue, for a time, to rotate on their axes and revolve in their orbits. The magnetic energy is as potent in total darkness as in the most brilliant sunlight. It guides the ship as safely at midnight as at noon-day. THE EXPERIMENTS OF M. HERTZ. 101 XIII. The Experiments of M. Hertz. " The great interest," says M. Joubert, " of M. Hertz's experiments lies in the accurate informa- tion that we gain from them concerning the inter- vention of the external medium in electrical phenomena. The idea of this intervention is not new. After Faraday's experiments and Maxwell's theories, there remained no doubt on this point in the minds of physicists ; but the experimental proof was wanting. This has now been given by M. Hertz. His experiments show particularly that the medium which intervenes in electrical phenomena is the same ether that forms the seat of luminous phenomena ; that the disturbances in both kinds are set up under the same conditions and with the same rapidity ; and lastly that there is identity between certain electrical phenomena and the luminous phenomena," a grand fact that almost fully answers the long and earnestly pon- dered question " what is the ether ? " " The effect of an electrical current may be represented as follows : Suppose a conducting 102 THE EXPEItlMENTS OF M. HEBTZ. wire to be connected with any number of elastic cords of indefinite length, radiating from all parts of its surface. By the passage of a current through the wire its force will be exhibited diamagnetically and will be imparted to all the cords at their points of connection, and they will be drawn forward in the direction of the main current and will be placed obliquely to it and will so continue as long as the current is maintained. When the cuiTent is withdrawn the cords assume their normal position. As the cords are of indefinite lengths the electrical effect is extended to any distance. ... As we know that time is a function in the transmission of currents, the current in this case is transmitted to the different cords succes- sively." M. Hertz estimates that it would require eight minutes to reach the sun, about the velocity of light. Continuing and varying his experiments M. Hertz found that the magnetic electric waves traversed walls of stone and passed through the closed door of a partition ; that the propagation of the current was the same as that of light and that the current was subject to the same laws as those of light, another grand fact that will aid us still further in solving the great mystery as to the nature of the ether. As the currents are sent through these cords to distances proportioned to the power applied, it must follow that with infinite power they would traverse infinite distances. THE EXPERIMENTS OF M. IIEUTZ. 103 This action of the currents may be accurately- represented by the tail of a cat, a highly magnetic animal as we have before noted. When the ani- mal is in a quiet condition the filaments or fibres of fur make a slight angle with the axis of the tail, but when the animal becomes greatly excited, these fibres immediately assume a position nearly at right angles with the axis ; and when the ex- citement ceases they assume their normal position. Here again, is a natural magnetic force absolutely identical in its character and in its action with the magneto-electrical force. Another of the most singular or rather unique discoveries of Hertz, was an electro-dynamic shadow, cast by an iron post, showing that elec- tricity, like light, may be refracted. This dis- covery may remove ghosts from the category of myths, and place them in that of visible but in- tangible realities. Perhaps the next step in this direction will be the construction of a magneto- electro-dynamic lens with which, properly arranged in a Kodac case, we may secure counterfeit present- ments of the wandering spirits of the night. The most significant lesson we learn from M. Hertz's experiments, is the very intimate relation between, if not identity of, the ether, the mag- neto-electric and the luminous forces. Concerning the peculiar vibratory discharges of the Leyden Jar, which were long such a mystery to physicists, and which have been so well shown 104 THE EXPERIMENTS OF M. HERTZ. in the recent beautiful experiments of Prof. Hertz, it is notable that the late Prof. Joseph Henry- recognized and demonstrated their action. They touch directly the long mooted question of " action at a distance," and also the still longer mooted question " what is the ether ? " Says Henry,* " In extending the researches relative to this part of the investigations, a remarkable result was obtained in regard to the distance at which induc- tive effects are produced by a very small quantity of electricity ; a single spark from the prime con- ductor of a machine of about an inch long, thrown on to the end of a circuit of wire in an upper room, produced an induction sufficiently powerful to magnetize needles in a parallel circuit of iron placed in the cellar beneath, at a perpendicular distance of thirty feet with two floors and ceilings each foui'teen inches tliick intervening." The author, Henry, is disposed to adopt the hypothesis of an "electrical-joZewMm." (Ether, magnetism?) Emphatically a plenum, all stellar space being per- meated with it and all matter amenable to it. In the sequel we give some further illustrations of the prevalence and value of magnetic forces. * Soientiflo writings of Joseph Henry, Smithsonian Insti- tution, 1886. ANIMAL MAGNETISM. 105 XIV. Animal Magnetism. We are well aware that scientists, particularly Electricians, do not recognize animal magnetism as a legitimate branch of science. Nevertheless, there is no branch of science the truths of which have been more thoroughly demonstrated by long and patient investigations and by almost innu- merable and varied experiments. In the sequel we have quoted many cases and authorities that establish its verity. Our own experience, related in the sequel, is a perfect demonstration of its existence and action. We are familiar with the action of magnets and magneto-electricity, and therefore speak confidently and understandingly on this subject. This form of magnetic force — animal magnetism — differs somewhat from that exhibited by cata- leptics, and the victims of delirium tremens. For some years past this force has been most remarka- bly manifested by Mrs. Abbott, the Georgia won- der, so called, a young woman of petite, delicate physique, but sanitarily sound, intelligent and 106 ANIMAL MAGNETISM. modest in demeanor. Of course, she can give no explanation of the amazing force manifested through her slight frame. We give a few incidents of her exhibitions which have been witnessed by thousands of in- terested spectators in all parts of the world. At the commencement of an exhibition six or eight of the most healthy athletic men in the audience are invited on to the stage to act as judges and subjects. Any one or all of these may attempt to resist the mysterious force under various condi- tions. A single person may hold out at arm's length a cane or umbrella, and brace himself as strongly as possible to maintain his position. By sim^y putting her hands on the cane or umbrella, and apparently without making the least physical effort she pushes him all about the stage and he cannot by any exertion stand still if he wishes to. Per contra, Mrs. Abbott will hold out, in the same manner, a cane, or in order to make room for more persons to grasp it, a billiard cue. Then, standing on one foot only she invites them to move her. Four stout men, two on each side of the cue, make the most determined effort to push or pull her from her position. The struggle is vain. Appar- ently they could as easily move an iron lamp-post. Three strong men hold a chair between them, and Mrs. Abbott asks them to press it to the floor. They cannot do it. The judges balance them- selves on the hind legs of a chair without touch- ANIMAL MAGNETISM. 107 ing it with their hands. Mrs. Abbott with a hand on each side of the sitter's head lifts him and the chair from the floor. Each sitter declares that he feels no hand pressure on his head, and it will be borne in mind that he has no hold of the chair. These performances were successfully varied. We have related them for the purpose of suggest- ing an explanation. We have, heretofore quoted Faraday's statement that, " if a copper disk, sus- pended by a long string, is set whirling, and is then introduced into the field of an electro-magnet, its motion will be instantly arrested and it cannot be further rotated in the field." Further ro^tation is impossible except by the destruction of the ap- paratus. We have also quoted Helmholtz's state- ment, that a copper disk, set in motion in a wood frame with multiplying gear and rotated with great rapidity, was placed between two pieces of iron which did not touch it, being part of the armor of an electro-magnet. Turn the current of a three-cell battery around the magnet, and the pieces of iron act like a break that entirely stops the rotation of the disk, and it can only be started again by the application of a strong force. In both these cases the resistless force that con- trols the disks is a magnetic force, pure and simple, since there is no contact, no impact, no friction. These disks are said to have weighed from one quarter to half a pound. They were amenable to the magnetism of the earth and the atmosphere 108 ANIMAL MAGNETISM. only. We know the great potency of the terres- trial magnetism and that the high magnetic condi- tion of oxygen makes atmospheric air a magnetic medium of no small power. The emphatic point connected with these disks is their fixity under the conditions in which they are placed. And in this fixity they furnish a striking analogy to the phenomena exhibited by Mrs. Abbott. As a mass of matter she weighs, instead of a quarter or half a pound, about 110 pounds. The hair of her head, and every hirsute appendage of her body ; all the nerves, muscles and tendons of her body, her blood highly charged with oxygen, all these are magnetic conductors, more or less effective. In the case of the disks, when the magneto- calorific current is discontinued, their fixity is at once removed and their freedom of motion restored. What is the motor force that enables the living machine to manifest its power? The dynamo that does this must be her will. She stands on one foot with the billiard cue held, with both hands, directly to the front ; it is seized by four powerful men who strive desperately, but in vain, to move her from her position. She ceases to exercise her will, and then either of the men could toss her out of the window. One man holds a chair horizontally to the front, and two others add their strength to his in an effort to force the chair to the floor. They do not sue- ANIMAL MAGNETISM. 109 ceed while she wills that they shall not. She ceases to do so and the chair can be dropped at once. A heavy man tilts himself back upon the hind legs of a chair with his hands folded on his breast. She gently places her hands on the sides of his head, and without exerting any recognizable press- ure, she lifts him, with the chair, nearly breast- high from the floor. If she were to remove her hands and fully relax her will, if she were to shut off the magneto-calorific current, both man and chair would at once fall to the floor. There is no opportunity here for legerdemain or connivance. The subjects do not know what is expected from them until they go upon the stage. The conditions for the exercise of the brute force — the strength of the men — ^are of the most favor- able character. There is no contact with the cor- ners or sides of the room. The abnormal power of the woman is exhibited in visible, open space. In one case she stands on one foot, like a light column standing on one end. And yet the brute force applied to the opposite end cannot move it. 110 THE BRAIN, STRUCTURE, ACTION. XV. The Brain, Its Structure, Functions and Action. In addition to the effects of animal magnetism heretofore described, we propose now to consider the operation of that force as connected with the most perfect organism known to us, and especially with that most marvellous piece of mechanism which dominates it — man and the human brain. Since the experiments of Gall and Spurzheim, and more particularly of David Ferrier, the structure of the brain has been very satisfactorily delineated and its functions described. A general indication of its parts and their functions is all that is necessary for our purpose. Concerning a certain " conception " as to the " place of the soul," Lotze writes, * " According to it, the soul would, at a single point at which its activity had reached its maximum, extend its in- fluence directly over all, but with diminished force over different parts of the body. Supposing this diminution to take place rapidly indeed, yet with * Microcosmos, Vol. I. pp. 297, 398, 399. TTIE BliAiy, STBUCTUBE, ACTION. HI SO moderate an acceleration that its effects were still perceptible at a sensible distance from the maximum point, there is no actual phenomenon that favors such a supposition. The afferent oper- ation of the sensory, the efferent activity of the motor, nerves always cease however near to the central organs their connection with these is severed, and no trace is ever to be found of any direct action of the soul extending outwards even so far as to pass over the trifling interval created by a fine cut between two immediately adjacent elements of a nerve. . . " Any one, however, cherishing the hope that more minute observation would find some such limited seat of the soul could not but acknowledge that it has been sought for in a wrong waj'. Slend- der as is a single nerve-fibre, a point of common intersection for all could not be an indivisible point, must be a cubic space with a diameter of quite appreciable magnitude. This space must be under the soul's direct control ; within it we would not expect to find isolated nerve-filaments con- tinued ; their isolation could only serve to bring the physical processes taking place in them, with- out any intermingling, into the soul's sphere of action. When they have arrived there, their farther separation is unnecessary ; for in the soul itself there are no partition-walls dividing the dif- ferent impressions, and it must be capable of hold- ing their multitudinous variety, without confusion, 112 THE BKAIN, STRUCTURE, ACTION. in the unity of its being. This cubic space, the seat of the soul (by our supposition, seq., the pineal gland), would then have to be conceived either as filled up with a parenchyma without fibres and somehow homogeneous, throughout which nerve-stimulations are propagated in all directions, or as a cavity along whose sides, and within the distance to which the soul's immediate efficiency extends. All the nerve fibres — or a suf- ficient select number of them — ^require to pass though not to terminate. . . It — the soul — is in direct reciprocal action only with the brain ; there accordingly, it has its seat, in the sense which the word ought to have." In response to this we give the following expo- sition of the brain which indicates the pineal gland or conai'ium as the seat of the soul and supplies the conditions necessary to its activity. The brain fills the whole cavity of the skull. It is divided into four principal parts, the cerebrum, the cerebellum, the pons-varolii and the medullar oblongata. The cerebrum, the upper part of the encephalon, occupies the largest part of the cranial cavity ; its two halves are called the cerebral hemispheres, and are connected by the great transverse commissure known as the corpus-callosum. The cerebrum covers the cerebellum and the olfactory lobes. Its exterior surface is deeply convoluted, and is trav- ersed by many deep furrows or fissures. In some THE BEAIN, STRUCTURE, ACTION. 113 of these furrows the arteries are securely imbedded. Nature here furnishes us an instructive lesson : she puts her pipes underground. The interior of the brain is also supplied with an elaborate system of connected cavities called ventricles or cceliEe. The cerebellum lies below the posterior portion of the cerebrum, by which it is entirely overlapped, and it occupies the lower part of the cranial cavity. By certain peduncles it is intimately connected with the cerebrum. It is globose in form, and its exterior surface, like that of the cerebrum, is con- voluted and furrowed, though less deeply and more systematically. The brain is covered by three membranes, the outer — dura, the middle — arachnoid, and the inner — pia. The substance of the brain is of two kinds, gray, gangliose or cellular nerve-tissue, and white, commissural or fibrous nerve-tissue. The gray matter forming the outer layer of the cere- brum and the cerebellum is also called the cortical substance to distinguish it from the white or medul- lary substance that constitutes the deeper portion^. The brain may be designated as a collection of ganglia united by white commissures. Besides the cortex there are several ganglia or collections of gray matter in the interior, as the corpora-striata, the optic thalami, the optic lobes or corpora-quadri- gemina, the corpora-dentata of the cerebellum and the corpora-olivaria of the medulla-oblongata. The cortex of the cerebral hemispheres is the 114 THE BRAIN, STRUCTURE, ACTION. portion of the brain in which the most complex mental co-ordinations are effected, and which is most directly involved in mental acts. Certain parts of the cortex are called sensoiy or motor centres. But in fact, the cortical or gray sub- stance is the principal and beginning of every motion in both the cerebrum and cerebellum. The corpus striatum is shown to be connected with the nervous force passing downward, and the optic thalamus with that passing upward; among the latter that of sight is connected with the pos- terior part of the thalamus. The anterior optic lobes are also involved in the sight function and the posterior in the auditory. The cerebellum is connected with the muscular and voluntary actions, while the meduUa-oblongata contains numerous centres whose functions relate to vaso-motor action, cardiac action, respiration, deglutition, etc. According to Winslow,* the medulla-oblongata embraces all that part of the brain which occupies the middle portion of the base of the cerebrum from front to rear — anterior and posterior — and also the middle portion of the cerebrum. It forms a medullary base between the cerebrum and the cerebellum, common to both and generated by the reciprocal continuity of these medullary substances and separated from both by the transverse process * The Brain, by Swedenborg, quoted by Tafel, p. 302. THE BRAIN, STEUCTUBE, ACTION. 115 of the dura-mater. The meduUa-oblongata maj' therefore, he says, be justly considered as the third general part of the whole mass of the brain, or as the common production of the whole medullary substance of the cerebrum and the cerebellum. Heister (p. 304) considered it as giving origin to the* spinal marrow and the nerves of the biain. The pons-varolii occupies a central portion of the base of the brain near the substance of the spinal cord, and connects together the three larger parts of the brain. Says Quain, " It forms a prominence marked by transverse fibres above and in front of the medulla-oblongata and between the lateral hemispheres of the cerebellum." In the lower part of the brain, in the sellartur- cica, lies the hypophysis or pituitary body, a small oval, vascular gland having two lobes, its function being connected with the lymphatic system in purifying and regenerating the blood in its change from the veins to the arteries. "We have reserved to the last a notice of the pineal gland, the smallest member of the cranial system, but whose importance we believe to be inversely proportional to its size. Its location is given as follows : * " Between the globose bodies of the cerebrum and cerebellum and the medulla- oblongata which extends beneath, there is a kind of a triangular, medullary space thrust in be- * The Brain by Swedenborg, ed. by Tafel, p. 16. 116 THE BRAIN, STRUCTUBE, ACTION. tween, which embraces the corpora-quadrigemina, the pineal gland, the passages underneath and some striated medulla. This space by the ancients was called " isthmus." It is, in a certain sense, the uniting medium between those three bodies : above it thrones the cerebrum with its two hemispheres, below it rests the cerebellum, and around it, afrthe sides as well as behind, extends the meduUa-ob- longata. It will be remembered that these are the three major and most important members of the brain, whence, it will be observed, that the gland occupies the crowning position in the encephalon, the centre of its nervous parts with all which it is intimately connected, especially with that most important pair of masses the optic thalami. And its location in respect of the cerebrum, the royal member of the cranial system, is precisely similar to that of the oculus fundus of the eye, the most sensitive and delicate point in the retina. In size, the gland is larger than an average pea, and is slightly conical in form, whence it is some- times called the conarium. It consists of a num- ber of follicles lined by epithelium and connected together by ingrowths of connective tissue. Lancisi, quoted by Tafel, says that its least glandular follicles secrete a lymph and a liquid peculiar to the nerves, such that they seem to con- stitute a peculiar cortex of a diminutive brain, and that, for this and other reasons, we may, without THE BRAIN, SmUCTURlS, ACTION. 117 any injustice, call the pineal gland the cerebellum of the cerebrum itself. While the functions of all other parts of the brain have been satisfactorily determined, such is not the case as to the conarium. In late researches by H. de Graff and Mr. Baldwin Spencer they en- deavor to show that, in certain animals, it repre- sents part of a rudimentary visual apparatus. The gland is so diminutive in size, so difficult to reach, so impossible, successfully to vivisect, if we may use the term, that little has been learned of its functional character. The only other method of learning something about it, is by post-mortems. But even this field is wonderfully barren. We have been unable to add to the two cases reported by Tafel. One was that of a man in middle life, a simpleton who stammered. The cerebrum was found to be white and compact like curd, the col- losum a little hard and the gland shrunken to the size of a hemp seed. The other case was that of a virgin twenty years old, who, after six months of great suffering from pains in the head became blind, was gradually deprived of all her senses and died in great agony. The gland had grown to the size of a hen's egg and was petrified. Now, from what we know of rudimentary bodies in otlier animals, they possess no such facility of extreme contraction or expansion, nor are they permeated with follicles charged with an abundance of nerve matter and nerves. Nature has already 118 THE BBAIN, STRUCTURE, ACTION. reduced rudimentary members to their least dimen- sions and their minimum activity. Their nerves are as rudimentary as their physical substance and cannot be subject to acute pain such as was suf- fered by the young woman whose gland was en- larged and ossified. From its peculiar position, its abundant supply of nerve matter and nerves, and its firm attach- ment to the sensory centres of feeling and emo- tion, we may be permitted to conclude that the pineal gland is more effective in developing feel- ing and emotion than any other portion of the brain, that indeed, its special function is to develop and express the sublimest emotion of which the soul is capable, that of adoration, worship. Its intimate attachment to the optic thalami is pecul- iarly indicative of this emotion, the first prompt- ing of it being to raise the eyes heavenward as in the act of devotion. " Prayer is the burden of a sigh, The falling of a tear, The upward glancing of an eye When none but God is near." This gland may, furnish another illustration of the correctness of Sir Isaac Newton's statement that small magnets are more powerful in propor- tion to their mass than larger ones. The conarium is the smallest of the cranial bodies ; it may be capable of producing the siiblimest emotions. It THE BRAIN, STRXTCTURE, ACTION. 119 was a reasonable conjecture of Galen and Descartes that the conarium was the seat of the soul. In the domestic animals which have the cona- rium fully developed and are still entire strangers to the feeling of reverence, that feeling may he superseded by a sentiment of terror. When such animals are greatly frightened, prompted by fear, they seek safety in flight, but when they are stricken with terror they are incapable of volun- tary motion and may be easily slaughtered. They are so overcome with a feeling of awe that they are entirely helpless. We have almost daily ex- perience of the difficulty of removing horses or any other domestic animals from burning build- ings. In wild animals, beasts of prey which are savage and fearless, the feeling of awe or terror may be superseded by feelings of hatred or vindic- tiveness. Their controlling desire seems to be to attack and destroy every living creature they encounter. In no case do we find reasonable evi- dence that the conarium is a rudimentary organ. The chief substance of the brain is the white and gray matter, constituting nerves, nerve-cells, fibres, corpuscles, vesicles, ganglia, etc. The nerve fibres are principallj' of the class termed white or tubular nerve fibres. The number of them forming the white substance of the brain is counted by hundreds of millions. The nerve cells, vesicles or ganglionic corpuscles are little bodies 120 THE BRAIN, STBUCTUBE, ACTION. of a variety of forms. The corpuscles occurring in the nervous substance must also, like the nerve fibres, be numbered by the million. The gray matter of which these corpuscles is composed is considered as the seat of nervous energy, which is conveyed to all parts ef the system.* All portions of the brain are united by innumer- able nerves, fibres, fascicules, processes and com- missures which anastomose through and inosculate with each other in the most thorough manner. " There is," says Ferrier,f " practically no limit to the number of associated combinations of sensory and motor elements. Sensory centres form organic association with other sensory centres ; motor centres with motor centres ; sen- sory centres, simple and in complex association, with simple or complex association of motor centres. In this variety and complexity of perma- nent modification and organic cohesions between the sensory and motor centres of the hemispheres, we have the basis of all intellect and volitional acquisitions. Each motor centre may enter into organic associations with each and every sensory centre, each definite association being the repre- sentation of some consciously determined act." The sensori-motor functions of the brain have been quite accurately determined. Those parte upon which the five senses depend, sight, hearing, * Bain, Senses and Intellect, pp. 13, 14. t Functions of the Brain, pp. 437, 438. THE BRAIN, STRUCTURE, ACTION. 121 taste^ touch and smell, are well known. We have ventured to suggest the distinct and supreme function of the conarium, the latest scientific term for the pineal gland. Permeating certain spaces between different constituents of the brain and indispensable to its action is a fluid that Quain calls " a very limpid serous fluid which occupies the subarachnoid space," and Magendie states that this "subarach- noid fluid exists not only in the cerebral canal but also within the cranium, in which it fills up all the space between the brain and the dura-mater.* Furthermore as we learn from Bain,f "both the nerve fibres and the nerve cells are largely sup- plied with blood, without which they would be lifeless and incapable of action. An important function of the corpuscles of the nerve cells is that they form the grand junction or crossings where the fibres communicate with each other and establish a vast system of lateral and forward connection necessary to the co-ordinating and con- centrating movements and sensations in the bodily mechanism associated with mind. J " The machine-like nature of much of the struct- ure and movement of the human body," says Ladd, § " does not escape the most ordinary ob- * Tafel : The Brain, p. 350. f Senses and Intellect, p. 16. :|: Brain, Senses and Intellect, p. 17. § Elements of Physiological Psychology, pp. 214, 215. 122 THE BRAIN, ETC. servation. When this body as a whole or in re- spect of some of its parts, changes its position in space, its variouB masses support and act upon each other in essentially the same manner as the masses which compose the parts of any machine constructed by human skill. Such movement is possible for it because its frame-work of bones has a rigidity sufficient to sustain the less rigid organs ; and because the bones are so divided and yet articulated that they can assume different rela- tions toward one another in accordance with the simplest principles of mechanics. The laws of the lever, of the puUej^ the ball and socket joint, etc., need no modification when applied to this particular machine of the human body. The action of certain other of its parts which do not belong to the bony framework, but which are of muscular or epithelial structure, is also plainly of the same machine-like character. The move- ment of the heart, for example, is in part to be explained as that of a pump with chambers and valves, and the flow of the blood through the arteries is that of a fluid pumped through conduits of unlike and changeable sizes. So, too, the lungs may be, with considerable propriety, compared to bellows which alternately suck in and expel the surrounding atmosphere." The optical and audi- tory nerves are mechanical in their action, and the distribution of fluids through the tissues of the body is also a mechanical process. Another THE BRAIN, ETC. 123 mechanical apparatus is exhibited in the system of secretory organs by which the joints and artic- ulations of the bones, tendons and muscles are constantly and effectually lubricated. We have thus described in a very general way, the arrangement of nerves, muscles, tendons, fibres, tissues and ganglia, and the frame-work of articu- lated bones which constitute the human body, the human machine. But they would all be ineffect- ive, useless, as before noted, without the presence of the blood. And the most efficient elements of the blood are iron ajid oxygen, the two most mag- netic substances known. Thus the blood may, not inappropriately, be called fluid magnetism. By virtue of that fluidity it permeates and physi- cally vitalizes every part of the human structure. The functional activity of the brain, the nerves, and in fact of every portion of the system is de- pendent upon it. What is the psychic force, the motor power that operates this wonderful machine ? By our hypothesis it is the will of God operating through certain agencies in pursuance of certain laws. There is an inherent, inherited divinity, a spiritual force in our nature. It is fundamental, under- lying, comprehensive, stimulating and directly aid- ing the development of the will and all our con- sciousness, all our feelings, emotions and senti- ments. Primarily it is entirely independent of 124 THE BBAIN, ETC. experience, but experience is a cardinal factor in its growth and activity. We have seen that all parts of the brain are con- nected with each other by innumerable nerves, fibres, fascicles, ganglia and tissues, and that all the members of the body are connected with the brain in a similar manner, and with each other by the ad- dition of muscles, tendons and sinews. The most important of the brain nerves are those connected with the cortical system which are distributed from the brain through the cerebellum and the cerebro- spinal axis to the extremities and all other parts of the body. " The structure of the nervous substances, " says Bain, * " and the experiments made upon the nerves and nerve centres, establish beyond doubt certain peculiarities as belonging to the force that is ex- ercised by the brain. This force is of a current nature ; that is to say, a power generated at one part of the structure is conveyed along an in- tervening substance and discharged at some other part. The different forms of electricity and mag- netism have made us familiar with this kind of action. . . . This portable or current character of the nerve force is what enables movements dis- tant from one another in the body to be associated together under a common stimulus." The evidence is overwhelming that all the nerves, muscles, tendons, sinews and tissues of the body are * The Senses and the Intellect, p. 48. THE BRAIN, ETC. 125 good magnetic conductors. , The currents which traverse them are differently designated as afferent — in-carrying ; efferent — out-carrying ; inhibitory — intermitting or checking; accelerating — constant or increasing. These conductors are excited and stimulated in like manner with any others, and in like manner, and under the same conditions, they respond. Says Perrier,* among the foremost of craniologists, " Galvanic stimulus gives shocks ; the faradic stimulus continuous stimulation. If the chief object be to secure efficient stimulation, to call forth in a decided and distinct manner the functional activity of the part to which the elec- trodes are applied, it would matter little whether we used the galvanic or faradic stimulus, provided they were both equally suitable for the purpose. But this is not the case. Not only a certain in- tensity but a certain direction of the stimulus is necessary to produce the characteristic effect." Concerning the summation of stimuli in the nerve tract " the law" says James,f " is this, that a stimulus which would be inadequate by itself to excite a nerve centre to effective discharge may, by acting with one or more other stimuli (equally ineffective by themselves alone) bring the dis- charge about. . . . Single stimuli entirely in- efficacious when alone may become efficacious by sufficiently rapid reiteration." This is precisely * Functions of the Brain, p. 235. t Psychology, Vol. I., p. 83. 126 THE BRAIN, ETC. what occurs in artificial currents. Single con- ductors placed side by side accumulate strength, and a given current is increased in power by rapid impact. Ferrier also notes the fact that the gray matter of the cortex, like nerve centres in general, is capable of storing up and responding to a suc- cession of stimuli individually insufficient to excite action. " With respect to neutral molecular disturb- ances," writes Ladd, "all nerves ai'e excitable, conductors of excitation and exciters of nerve cells and muscle fibres." According to our hypothesis the most potent " exciter " in all cases is the mag- netic force. We have abundant evidence that all nerves, muscles, tendons, sinews, fibres and fluids in all living organisms are amenable to and directly acted upon by this force. Instead, then, of attributing the vis-viva of the brain and the body to the influence of " nerve ex- citers," " muscle stimuli," " afferent " or " effer- ent," "inhibitory " or " accelerating " currents, how much more accordant with the facts would it be to recognize by its proper name the force that pro- duces the result, — the magnetic force, and hence magnetic currents. THE HEART, ITS ACTIOJSI. 127 XVI. The Heart, Its Functions and Action. The arrangement of the brain, bones, flesh and blood exhibited in the healthy man present a most perfect and admirable model of a magneto-calorific machine. And it is interesting to trace out its physical modus operandi. We begin with the heart as its dynamo. By its protected nerve-wires it is connected with the brain and with every part of the body. The nerves of the cortical system are the largest and longest, ex- tending mainly up and down from the brain through the trunk and to the extremities of the limbs. From their responses to the magnetic force we conclude that they are paramagnetic, and that the innumer- able commissures and fibres that traverse the brain and the ganglia which compose its substance are diamagnetie and diffuse the force in all directions. The heart furnishes the kind and degree of stim- ulus necessary to operate the machine. " But the rate of the heart beats " says Ferrier,* " is subject to variation through certain nerves connecting it * Functions of the Brain, p. 98. 128 " TBE HEART, ITS ACTION. with the medulla oblongata ; one set of nerves in- hibiting or restraining, the other accelerating or increasing the heart's action." Thus these inhib- itory nerves of the heart which " run in the trunks of the vagi or pneumogastric nerves " serve as a rheostat to produce rhythmic, respiration " The accelerator nerves reach the heart through the last cervical and first dorsal ganglia of the sympathetic." Both these sets of nerves can be excited by various stimuli. By the joint action of the two sets the heart becomes a veritable rheotem with its systematic and rhythmatic diastole and sistole. In artificial conductors we know that the mag- netic force can be intensified so as to produce warmth, heat, flame, fusion and gaseous dissipation, the effect being proportioned to the intensity of the friction. In like manner when the magnetic force is coursing through the various nerves of the system, if it is checked, if a lesion occurs, the troubled nerve at once signifies it to the brain. A slight interruption may produce some uneasiness ; one more decided, more or less depression, mental anxiety ,■ one still still more emphasized, a severe lesion, produces pain ; as this increases it is com- municated to other adjoining nerves until finally great distress and agony are experienced. On the other hand, when the whole system is in perfect order, all the members, nerves and muscles working healthfully and harmoniously, THE MEABT, ITS ACTION. 129 the blood flowing free and pure, the mind agree- ably and sedulously occupied, then the exaltation of spirit is at its maximum; a genial flow and glow of feeling quickens the pulse, stimulates the senses and gladdens the heart. Magnetic action is induced in several ways ; by friction, induction and impact or rapping. Man being a magnetic animal every step he takes, every motion oi his body or limbs, every movement of his joints excites the magnetic stimulus. We have quoted Ferrier's statement that the gray mat- ter and nerve cells are capable of storing up this stimulus. This is done when mind and body are at rest, and especially in sleep. In healthful sleep the mind, body, nerves and muscles are com- paratively at rest ; the circulation of the blood is slower, as are also the pulsations of the heart which become more regular, rhythmic. Every throb acts as an impact or rap that increases the magnetic force and stores it up in the body. When the physical frame is sufficiently rested and fully re- charged with magnetism the subject awakes. Then the first motory prompting is to yawn and stretch his limbs. Thereby the pulsations of the heart and the circulation of the blood are both quickened and he rises refreshed and invigorated in body and mind and with renewed elasticity of spirit. And no person can deprive himself of this needful rest and recuperation of mind and body without consequent suffering and abridgment of 9 130 THE HEAET, ITS ACTION. the period of life. The heart-dynamo will be stead- fast and faithful in the performance of its duty so long as its powers are not .overtasked. And in this connection it may be interesting to consider the task that the living heart accomplishes in a stated time. In mechanics the work done by a machine is usually estimated — by Grove's method — in foot- pounds, that is the number of pounds the machine can raise through one foot, or the number of feet that the machine can raise one pound, i. e., the work equals the weight multiplied by the height. The work accomplished by the heart in twenty-four hours can be estimated approximately in the same way. It amounts to 138 foot-tons, that is, the heart performs in twenty-four hours an amount of mechanical work equivalent to that of a machine that will raise, during the same time, 138 tons through one foot, or one ton through 138 feet.* In closing it may be well to correct some erro- neous impressions concerning the function of this cardinal organ. In every civilized language the heart is characterized in many phrases with many adjectives. They are incorporated, embalmed as it were, in the literature of every nation. There are " feeling," " generous," " bold," " brave," " kind," "warm," "cold," "faint," " true," " false," » bleed- ing," " broken," " confiding," " doubting," and " ravished," hearts, besides an innumerable multi- * Chapman. Human Physiology, p. 281. THE HEART, ITS ACTION. 131 tude of loved and loving hearts. Indeed love and loving hearts are the invariable constants in the varying phrases and phases ol every tongue. They are all very fine, very expressive, very poetic, very romantic. Romance would perish and love would go into perpetual mourning if they were expurgated from the literature of the world. Nevertheless, they are intrinsically only poetic and romantic. The heart is not a seat of conscious- ness. It has no sense, no feeling, except of a neural character. Its sensitiveness is intense by reason of its near and strong connection with the brain. It is easily and strongly affected and agitated. It is literally and emphatically a stout heart, since we learn from Ferrier * that " the heart muscles contract rhythmically on stimula- tion apart from all nerves and ganglia. It will beat rhythmically after complete severance of all its cerebro-spinal connections, or even after being removed from the body." Hence it may happen that the faithful heart may continue to beat after the brain is dead, * FunctioiMi of the Brain, p. 98. 132 GASES. XVII. Hitherto in considering the nature and proper- ties of magnetism and electricity, we have confined ourselves mainly to their relation to and their action with liquids and solids. It is now proposed to consider them in their connection with a very different form of matter — the gases. As early as 1823, Faraday liquified various gaseous bodies by pressure alone, and later, in 1845,* he condensed still others that were more refractory, by cold and pressure. According to Boyle's law, the pressure exercised by a given mass of gas varies inversely as the volume of the space within which it is confined, or, the space occupied by a given quantity of gas varies inverselj' as the pressure. All gases, except one, are unsaturated vapors since they can all be condensed by simultane- ous application of sufficient cold and sufficient press- ure, confirming Faraday's conclusion that " every gas could probably be liquified by the combined influence of cooling and pressure, could we extend *Phil. Trans., p. 155. GASJES. 133 them sufficiently far." "No man," says Boyle,* " perhaps yet knows how near to an infinite com- pression the air may be capable of if the compress- ing force be competently increased" Independent of the sudden changes produced by the action of chemical affinity, gaseous and liquid forms of matter may be transformed into one another by a series of continuous and unbroken changes.! Careful experiments in condensing gases were made by Cailletet and Pict^t in 1878. The latter, after liquifying oxygen at a pressure which became constant at 475 atmospheres, on opening the stop-cock at the end of the tube con- taining it, saw a lustrous jet of liquid oxygen issue with great violence, whilst around it was a haze of particles oi solid oxygen. In a subsequent experi- ment, the presence of solid particles in the jet of liquid oxygen was confirmed by illuminating it with polarized light. After subjecting hydrogen gas to a pressure of 650 atmospheres, on opening the stop-cock a steel-blue colored, opaque jet of liquid hydrogen rushed out with a hissing noise, and at the same time a rattling was heard, as if small shot or hail had fallen on the ground. If the gaseous form of a substance be com- pressed or cooled so far that any further condensa- tion or cooling will cause the disposition of some of it in the liquid form, it is said to be a vapor. * Tait, Prop, of Matter, p. 163. f Andrews's Scientific Papers, p. 317. 134 GASES. The tei-m vapor is often applied in a wider sense to the gaseous form of a liquid or solid substance — as, for instance, ether-vapor, chloroform-vapor and others.* If hydrogen can be condensed into a liquid or solid it would seem that it can be expanded into ether or some infinitesimal element. Bancalari first discovered the fact that, on the interposition of a gas or candle flame between the poles of an electro-magnet, the flame was instantly- repulsed when the electric current was closed, to return to its first position the instant it was broken. The same result would have followed if natural magnets had been substituted in the place of elec- tro-magnets. Zantedeschi, in verifying Bancalari's experiments, found that this repulsion of the flame happened with contacts of both solid and hollow soft iron, and he was convinced that it was an im- mediate action of the magnetism on the flame ; " a fact," declares Faraday, " of the greatest impor- tance to science," as it truly is ; for it proves, in this case, that the action of the natural magnet and of the electro-magnet is precisely the same, and this further proves, if such proof were neces- sary, that they are identical in character.f Another most important and abundant of the gases, the lightest of them except hydrogen, is am- monia. Its specific gravity is -76, that of hydrogen * Daniel, Principles of Physics, p. 216. tExp. Res., pp. 491, 492. GASES. 135 being "TO. It may be extracted in great abundance from gas-liquor, and largely, also, from all urinary and organic secretions and excretions, as well as from decayed animal and vegetable matter. When pure, it will not only not support combustion, but its hydro-carbonate, carbonate and sulphate read- ily yield incombustible gases which possess the positive quality of extinguishing combustion; of course, it is opaque to heat. If inhaled pure, it is fatal to animal life. One volume of water will absorb or dissolve 500 volumes of it. Hence its abundance, under certain conditions, in aqueous vapor. Hydrogen also occupies an important place in nearly all organic substances. It constitutes, by volume, two of the three parts of water. Water, as vapor, occupies 1,700 times more space than when in the liquid state at ordinary temperatures. Aqueous vapor is continually ascending into the air, and, by reason of its solvent pi'operties, parti- cles of many other substances are carried into the air and distributed over the earth. The spectro- scope reveals hydrogen largely in the corona and chromosphere of the sun, and Father Secchi holds that it constitutes the principal element of a nu- merous class of stars, and is also found in me- teorites. Nitrogen is another important constituent of animal and vegetable life, and it also occurs, though not abundantly, in the mineral kingdom. It pos- 136 GASES. sesses no active properties; is, like ammonia, in- combustible, and does not support combustion, and, consequently, will not, when pure, support respira- tion. It does not enter into direct combination with any element except oxygen, and, by the elec- tric spark, with titanium, tungsten, and one or two other substances. It is a remarkable fact that two gases, neither of which will support life contir.- uously, yet, when mechanically mixed in certain proportions, compose the healthful air we breathe, and without which we could not live : and, in a certain other slightly varied proportion, form " laughing-gas," the breathing of which affords the most deliglttful sensations. As to its magnetism, Faraday characterizes it (§ 2860) as being a very indifferent body, neither paramagnetic nor diamag- netic, but zero or neutral. Among the important results concerning the diffusion of gases, as reported by Tait,* is the fact that, the higher we ascend from the earth, the more nitrogen and the less oxygen we find. Another most essential element both as a gas and in its denser form of charcoal or graphite, is car- bon, which occurs in great abundance and in a great variety of forms and combinations. It is the only element always present in animal and vege- table substances. Cook — Chemical Philosophy — describes it as " one of the most widely diffused and one of the most important elements in the scheme * Recent Advances in Physical Science. GASES. 137 of terrestial nature. United to the three aeriform elements, oxygen, hydrogen and nitrogen, it forms the chief solid substance of all oi'ganic structures. Combined with oxygen it forms the carbonic dioxide of the atmosphere which is the food of the whole vegetable world." In the crust of the earth it is found in large measures of coal and petroleum, and is an essential constituent of the limestones and dolomites. The spectroscope also reveals it as one of the most important constituents of comets. It is a good conductor of electricity in all its forms except as crystallized in the diamond, which is a poor conductor. But by far the most interesting, most indispen- sable of all gases in its properties and its predomi- nant eiScacy in all the processes of nature is oxygen. " The magnetic constitution of oxygen," says Fara- day (§ 2966) " seems to me wonderful. " It is in the air what iron is in the earth. Its power in specific magnetism is plus 1.181. Hence oxygen in the air exercises a remarkable amount of mag- netic force, especially since its magnetic condition is greatly altered by variations in its density and in its temperature" (§ 2796). It is stated by Prof. Dewar * that he placed a quantity of liquid oxygen in the state of rapid ebullition in air (and therefore in a temperature of 181° C.) between the poles of the historic Faraday magnet in a cup-shaped pan of rock salt (which is *" Notes," Nature, Dec. 17, 1891. 138 GASES. not moistened by liquid oxygen and therefore keeps it in a spheroidal state), and to his surprise Prof. Dewar saw the liquid oxygen, as soon as "the magnet was stimulated, suddenly leap up to the poles and remain there permanently attracted until it evaporated." Though a gas it is apparently like the solid metals, iron, nickel and cobalt, when they are in the range of temperature which affects their magnetic forces, and it may, like them, perliaps, rise by cool- ing to a very high state. It is a singular fact that iron can only be permanently/ magnetized with the aid or in the presence of oxygen, as in steel. It is a little more than one-tenth heavier than air, and ice-cold water will hold in solution more than four per cent, of its volume while water at 68° F. will only hold less than three per cent., a fact that proves that lowering its temperature increases its density. " It is to an enormous degree the most abundant, as it is in many respects the most important, of the elements of matter upon the earth. The only other element that can compare with it in abun- dance is silicon, the special element of mineral silicates. It constitutes nearly, if not quite half the total weight of known matter, and silicon not far from one-third. Of water, the liquid part of the earth, oxygen forms a still larger proportion or eight- ninths. Of living matter, vegetable and animal, oxygen also forms by far the largest element.* * H. Wortz, Johnson's Cyclopedia, Art. Oxygen. GASES. 139 As the question of color may have some interest as connected with the final development of our scheme we may note some of its more important characteristics as revealed in the spectrum of tlie solar rays and also in the spectra of some of the gases. From Mosotti we learn that the greatest il- luminating power is found in the yellow, the cen- tral color of what were formerly called the three primary colors, blue, yellow, and red, and that the intensity declines systematically on either side. Its penetrating power is also greatest making it serviceable for signals. Incandescent metals, and rarefied gases enclosed in glass tubes (Geisler's) when made luminous by the electric spark, re- vealed hydrogen as purple red, chlorine, magnesium and thallium different shades of green, and sodium yellow, and nitrogen blue or purple. Some recent experiments have shown the color of liquid oxygen to be a beautiful blue. The substance that pro- duces a peculiar green line in the aurora, the zodi- acal light and the corona of the sun is, as yet, un- known. It may here be noted that Langley and Very * found the spectrum of the Italian firefly — Pyrophorus Noctilucus — to be of maximum brill- iancy in the green. The luminous power of gases increases in proportion to the pressure to which they are subjected, by which their density is in- creased, f as we have before noted. * SiUiman's Journal, Vol. 40, 3d Series, p. 102. t Schellen, Spec. Anal., p. 15. 140 STELLAR SYSTEMS. XVIII. Stellar Si/stems and Celestial Geography. Having thus studied the forces of nature and ascertained their various forms and properties we have now to consider their application and use in the construction of stellar systems and a celestial geography. From the earliest dawn of human intelligence the stars have furnished the most absorbing and fascinating iield of study and speculation. Both in tradition and recorded history their influence has been recognized, and they have been supposed to be potent in their courses in deciding the desti- nies of individuals and nations, whether striving against the enemies of Israel among the hills of Judea or guiding the shepherds to the birthplace of the Saviour. Supposed to be infinite in number and unchange- ably fixed in their positions in the celestial vault, it has also been supposed that they were arranged in some orderly system and subjected to some dy- namic laws. Hence many hypotheses concerning STELLAR SYSTEMS. 141 the structuie of the universe have been suggested. All hypotheses fill space with some form of matter, of atoms or molecules. These are supposed to be constantly in motion ; some in all directions like snowflakes in a whirlwind, some in fixed direc- tions like drops of rain in a gentle shower; that they possess certain affinities, that they attract or repel each other, and that they are forced into different forms and conditions, gase9us, gelati- nous, aqueous, viscous or solid. The stellar system which has been most favor- ably received is that of Laplace, Kant and Herschel, founded on the nebular theory, that all suns and planets are agglomerations of nebulous matter, the nebulse themselves being aggregations of molecules or atoms in the most attenuated possible forms of matter, which are subject to certain attractive and repulsive, cohesive and dis- ruptive forces, which decide their shapes and con- trol their motions. Some years after the publication of Kant's sys- tem an original and more elaborate one was set forth by Johannes H. Lambert, a lucid synopsis of which — not being able to find his original work — I copy from Prof. Newcomb's Popular Astron- omy. "He supposes the universe to be arranged in systems of different orders. The smallest systems which we know are those made up of a planet with its satellites circulating around it as a centre. 142 STELLAR SYSTEMS. The next system in the order of magnitude is a solar system, in which a number of smaller systems are each carried around the sun. Each individual star which we see is a sun, and has its retinue of planets revolving around it, so that there are as many solar systems as stars. These systems are not, however, scattered at random, but are divided up into greater systems which appear in our tele- scopes as clusters of stars. An immense number of these clusters make up our galaxy and form the visible universe as seen in our telescopes. There may be yet greater systems each made up of gal- axies, and so on indefinitely, only their distance is so immense as to elude our observation." " Each of the smaller systems visible to us has its central body, the mass of which is much greater than that of those which revolve round it." This feature Lambert supposed to extend to other systems. " As the planets are larger than their satellites and the sun larger than its planets, so he supposed each stellar cluster to have a great central body around which each solar system revolved. As these cen- tral bodies are invisible to us, he supposed them to be opaque and dark. All the systems from the smallest to the greatest were supposed to be bound together by the one universal law of gravita- tion." This system is adversely criticised, quite decid- edly by Prof. Newcomb, and more mildly by Father Secchi, criticisms which we hope to show 8TELLAB SYSTEMS. 143 are erroneous, and that, on the contrary, the hy- pothesis contains the germ of a far more sublime stellar cosmography. As science, in the department of magnetism and electricity, is more indebted to Faraday than to any other physicist, so it is in the department of astronomy more indebted to the investigations and labors of Sir William Herschel than to those of any other astronomer. The Columbus of the skies, with his telescope-ship he traversed with per- sistent zeal and keen intelligence the celestial seas of space, and discovered for mankind its first new world, together with the numerous nebulous island- groups scattered in all directions around it. He taught us how other worlds may be built up, how we may watch their birth and growth and proxi- mately determine their age, from the youthful star that has not yet reached the period of scintil- lation to the adult sun that, with resplendent glory, "sweeps in triumph through the signs of heaven." He insisted on the existence of matter diffused through space, out of which the nebulae were prob- ably formed; and he noticed the fact, which all astronomers have done, that the southern hemi- sphere is less richly provided with stars than the northern ; and we are led to the conclusion that not only in appearance but in fact the stars are more dense near the galaxy. Among the multitude of nebulae revealed by his telescope he believed that 144 STELLAR SYSTEMS. every stage of the process (of growth) might be considered as displayed to our eyes, and in every modification of form to which the general principle might be conceived to apply. The more or less advanced stage of a nebulae towards its segregation into discrete stars, and these stars themselves towards a dense state of aggregation round a central nucleus, would thus be in some sort an indices tion of age.* These changes were especially notable in the Magellanic clouds or nubeculse — note wMbeculse, not webulae — the former being immense fields of Stardust in which the latter appear in a more con- densed form. These remarkable regions of cloud- light lie in the southeastern portion of the firma- ment, and present almost every stage of stellar development from the motes of star-dust floating in space to the largest and most resplendent sun.f The spectroscope has very materially enlarged our knowledge of the nebulse by showing that the spectra of some of them have characteristics belonging to the spectra of gases ; others have the equally characteristic spectra peculiar to glowing solids; M'hile in a third class may be placed all those whose spectra combine the characteristics of both the preceding classes, J * Sir J. Hersohel, Outliaes of Astronomy, p. 504. t Sir J. Herschel, Outlines of Astronomy. \ H. Abbe, Art. "Nebulse," Johnson's Cyc. COMETS, DUST OF TIME. lib XIX. Zodiacal Light. — Comets, Dust of Time. — Spec- trum of Cras Flame. "It is generally agreed," says Mr. Alexander Winchell,* " that this phenomenon * arises from a ring of meteoroidal bodies encircling the sun, nearly in the plane of the ecliptic and probably rotating like the rings of Saturn. But considering that the phenomenon has been so frequently witnessed in the east and west at the same time, it is necessary to assume that while most of the mat- ter lies within the earth's orbit, some portion ex- tends beyond that limit. Accordingly the earth moves within this assemblage of particles. Conse- quently, unless they have the same velocity as the earth, they must by their collisions offer a resist- ance to the earth's motion." COMETS. " Whence comes the ' Dust of Time ' ? There is nothing around which the dust of time does not * In his admirable and exhaustive work, "World-Life or Comparative Geology." f The Zodiacal Light. 10 146 COMETS, BUST OF TIME. gather. It accumulates among the shelters of mountain cliffs. It falls upon ivy-mantled towers and ruined walls, and creates a rooting-place for many a hardy herb and a nidus for countless living germs. It clogs the water-passages from our roofs, and fills our cisterns with soils yielded by the atmosphere. It gathers about deserted structures ; it buries the foundations of columns and temples, and new temples are built upon foundations be- neath them Whence the dust which has buried walls and towers and cities ? . . . . Much of the soil which gathers upon roofs and in the crevices of old walls has been lifted by the winds from bare field and dusty street. Even the snowy summits of the Alps become stained by terrestrial particles borne by upward currents into the mountain air. And yet I will venture the opinion that some dust comes to the earth daily which had never belonged to the earth before. Out from the depths of space — beyond the clouds — beyond the atmosphere — from a granary of mate- rial germs which stock the empire of the blue sky, comes a perpetual but invisible rain of material atoms — like the evening dew, emerging from the transparency of space into a state of growing divisibility." .... Among the first to produce evidence in support of the theory of the cosmic origin of certain portions of the atmospheric dust was Baron A. E. . Nordenskjold. He reported large patches of arctic ice covered with a gray COMETS, LUST OF TIME. 147 diatomaceous powder mingled with grains of mag- netic iron surrounded by iron-dioxide, and con- taining also probably carbon. Stmilar deposits were reported from snows from the neighborhood of Stockholm, from the interior of Finland and from Spitzbergen. " M. Tissandier," continues Prof. Winchell, "has made quite extensive re- searches on atmospheric dust, and has put beyond question the meteoric origin of certain portions of it. Many grains and minute globules of iron are met with in these dust-falls, which appear to have been fused These grains of magnetic iron have been collected from a great variety of situations — from the summit of Mont Blanc, from rains recently fallen, from the towers of Notre Dame Cathedral in Paris and many other cathedrals, from the borders of Lake Lehman, from the hos- pice of St. Bernard and from many localities in distant countries." Prof. Winchell gives a num- ber of highly magnified figures of these iron globules and afterward says, " Thus the evidence of the perpetual arrival of foreign matter from the interplanetary spaces seems conclusive." Dr. Huggins demonstrated the existence of carbon in the comets of Brorson and Wiimeke in 1868. We hope in the sequel to get better ac- quainted with their tails. The orbits of most of the comets are elliptic, and when subjected to the sun's attraction they are drawn towards it with a velocity which constantly 148 COMETS, DUST OF TIME. increases as the radius-vector diminishes, a velocity at perehelion distance which, for Donati's comet Sir J. HerscMIl estimates at 200,000 miles a minute. Notwithstanding this tremendous velocity with which comets are projected towards the sun they are repulsed and turned aside in a different direc- tion. The terrific force which resists these fierce attacks is the magneto-electric force. Says Father Secchi, " It " (gravity) " is not the sole force which rules the universe ; perhaps it is itself only a con- sequence of disturbed equilibrium in the ether. But the comets have given indications of some other force, not yet well defined, operating in space. The rapid development of the tails o^' these bodies is not explained by heat alone, nor by that of gravity. Magnetism, electricity have been evoked, but as yet nothing as to this is certain." Langley also suggests that " it is doubtful whether gravity is sufficient to account for the velocity of all comets," and that " it seems certain that it can, in no way, explain some of the phe- nomena of the tails." Prof. Lockyer in his recent " History of a Star " says oJ the tails of comets, " It looks as if these tails may consist, to a large extent, of the gases which exist in meteorites, and which can be driven out of them at not very high temperatures. See- ing that these are thrown off with great velocity, and shine through millions of miles in the depths SPECTRUM OF GAS FLAME. 149 of space, it is not likely that we are dealing with any such considerable substances as the vapor of iron, magnesium or any other metal. This con- sideration may help us in the chemistry of the re- pelling body " (ether). Sir J. Herschel states that " the matter of the secondary tail in Donati's comet was evidently darted off from the nucleus with incomparably greater velocity than that which went to form the primary one." Our explanation of this is, that the enormous resistance encountered by the comet as it ap- proached the sun was constantly increasing, and when the material, " consisting," according to Schelling,* " of innumerable solid particles sepa- rated one from another," which composed tlie secondary tail, was, by reason of the intensfe heat, separated from the nucleus or head of the comet, it was projected into space with increased and con- stantly increasing velocity due to its nearer ap- proach to the sun. Hence, when near the perehelion change of direction the tail would seem to be driven back upon the nucleus. " Considerable discussion has taken place as to the origin of the spectrum seen at the base of a candle or gas flame. At first, observation seemed to point to the fact that it was due to a hydro- carbon. It has been ascertained, however, that sparks taken in cj'-anogen gas, even when dried * Spectrum Analysis, p. 568. 150 SPECTRUM OF GAS FLAME. with all care, show the spectrum, and a flame of cyanogen and oxygen gives the same bands brill- iantly. These facts have convinced the majority of observers that the spectrum is a true carbon spectrum."* Prof. Tyndall has made us acquainted, not only with the peculiar properties and the marvellous distribution of aqueous vapor, but also of the most infinitesimal dust-particles that so thoroughly per- meate our atmosphere, and are made manifest when it is agitated or disturbed. These particles are utterly impalpable, and are only made visible in sunbeams. Their existence may be made manifest in an extraordinary manner by means of the blue flame. We have noticed the brilliancy of the field when charged with finely comminuted charcoal, lodestone or iron. To vary the experiment we resorted to friction, rubbing briskly the brass tube or wick of a com- mon Bunsen burner with a two-pound lodestone, the ventilator in the bottom of the tube being left entirely open so that only the blue carbon flame escaped from the top. Immediately bright coni- cal streaks appeared in the flame, intermittent and disappearing when the friction ceased. By sub- stituting raps for friction the brilliancy of the whole flame was greatly increased and its volume slightly enlarged. For the moment the result was startling since it seemed to show that magnetism * Art. Spectroscopy, Cyc. Brit., 19th Edition. SPECTRUM OF GAS FLAME. 151 was matter that was being consumed by the car- bon flame. But continuing and varying the ex- periment, it was found that rubbing or rapping the tube with any solid substance would produce the same effect, much less forcibly, however, with fric- tion than with rapping. Another singular effect was, that by rapping the rubber tube that conveyed the gas into the Bunsen wick, at a little distance from the base of the burner a similar but less con- tinuous and brilliant effect was manifest. Projecting moisture into the flame by the elastic force of a damp tooth-brush rubbed across the fingers also increased the brilliancy of the whole volume of flame. This shows that water, when first projected into a burning building, adds fuel to the flame. When the heat is sufficiently intense to convert the water into steam the flame is extin- guished. Every person who has used a clothes or hair brush knows that after use, by rubbing them across the fingers or any other substance, particles of dust and other visible matter are expelled from them. After these particles have ceased to be visible, turn the brushes toward the carbon flame and rub them as before. The brilliancy of the flame is at once increased. Rub one piece of iron quickly across another towards the flame. A most brilliant flame is exhibited. Rub a stiff tooth-brush across the flat surface of a lodestone towards the flame. A still more brilliant flame filled with incandescent 152 SPECTRUM OF GAS FLAME. sparks will rush up from the tube. We had made a steel tube or wick to fit an ordinary Bunsen burner and repeated these experiments with it, in some cases with more brilliant effect than with the brass tube. The steel was necessarily magnetized both by friction and rapping during the experi- ments. With both the brass and steel tubes, by scraping off particles of lodestone on the upper edge so that they came in contact with the flame, a yellowish green color appeared at the base of the flame from the brass tube which we attributed to the copper in its composition, but a bright green appeared at the base of the flame from the steel tube, which the spectroscope may show to be the spectrum of the lodestone flame. With a slightly moistened tooth-brush take up some •floured lode- stone that has been sifted through flannel and pro- ject it into the flame. A scintillating blaze of glory will be the result. After handling lode- stones, iron, charcoal and other substances, brush the fingers of the right hand briskly across those of the left and toward the flame ; it will become more brilliant intermittingly, and incandescent sparks will appear. As there can be no combustion except through the agency of matter, whence comes the matter that illumines the carbon flame '? We can trace that from the water, the iron, the lodestone, the charcoal, and the particles of dust. But whence comes that from the flesh of the hands ? Since SPECTBUM OF GAS FLAME. 153 flame is incontestibly the product of the combus- tion of matter, how infinitely infinitesimal, in this case, must be the particles of that matter ? Is it possible that the ether can be more ethereal than this ? If not, the resistless logic of the question seems to be that ether is matter. Another argu- ment in favor of the same conclusion may be cited. We know that nothing but matter except magnet- ism can resist matter in motion. In a perfect vacuum all substances light or heavy, fall with the same velocity. In the atmosphere they fall with unequal velocities, the feather less rapidly than the leaden bullet. Now it is held that the ether resists the motion of the planets in their orbits and at the same time helps to support them as they revolve on their axes. If this argument is sound it is a further indication that ether is matter. A very good illustration of the above conditions is furnished by the flame of a Bunsen gas-burner when the ventilator at the bottom of the tube is left entirely open so that the air may be admitted to the lower part of the flame. The faint fringe of light that borders the outer and upper edge of the flame produced by the combustion of the oxy- gen from the air with a slight portion of hydrogen, represents the coma; the denser yellow flame produced by the combustion of the " solid bodies," both of the gas and such as may escape from the inner surface of the tube, represents the nucleus, and the beautifully transparent slightly blue flame 154 SPECTRUM OF GAS FLAME. that immediately follows is tlie carbon flame that forms the tails of comets. To illustrate this more effectually we prepared a single tube or metallic wick to receive the gas from two Bunsen burners. The orifice for the escape of the concentrated flame of both burners was three inches wide. When the gas was turned on full head with the ventilators entirely open we had a splendid jet of flame three inches wide and about eight inches high at the centre of the flame arch. We thus had a curtain of light-blue trans- parent flame equal to a parallelogram about three inches wide and four inches high. With a glass blow-pipe we sent a current of air through the curtain. The heat was carried be- yond arm's length. With a small nozzle attached to the rubber tube of an air-pump, and turning on a strong current of air a conical volume of heat was developed, the heat being quite strong at its apex near the blue curtain, and detected by the hand some twelve to fifteen feet distant. Counter-cur- rents from any source should be excluded. When the Bunsen flame was ascending undis- turbed, a fine effect was produced by sprinkling or ejecting into it finely comminuted particles of any metal or mineral. Particles of carbon gave a profusion of brilliant sparks. Thoroughly pulver- ized lodestone and iron yielded copious volumes of bright flame. If this be a true synthesis of comet's tails, then every lighted candle and gas- MAGELLANIC CLOUDS. 155 flame has been manufacturing them for centuries past. Says Sir John Herschel, " The constitution of the nubeculse — the Magellanic clouds — especially that of nubecula major, is found to be of astonish- ing complexity. The general ground of both con- sists of large tracts and patches of nebulosity in every stage of resolution, . . . nebulae in abun- dance both regular and irregular ; globular clusters in every state of condensation ; and objects of a nebulous character quite peculiar, and which have no analogue in any other region of the heavens." These objects of a nebulous character may possibly be masses of glowing gas similar to those discovered by Huggins in the nebula of Draco. Whatever may be their constitution they appear to be per- manently fixed in the far south-eastern portion of the heavens. Remembering that by our hypothesis there are several stellar systems in each of the hyperboloids, we may assume that two of these systems are adjacent to each other in two adjoining hyperbo- loids, but not in the same latitude, so to speak, in space, and that they are also within telescopic reach of each other. Let us further assume that the system to which our earth belongs is within telescopic reach of the system that lies next east of it. We know that our telescopes reveal to us many celestial bodies lying far beyond the planets connected with our system, that many of these 166 MAGELLANIC CLOUDS. bodies are suns, and that each sun is supposed to be the centre of another system. All these bodies revolve in the same general direction. Hence it may happen that, from our earth, moving along the eastern side of our system, we may, with the aid of the telescope, observe the celestial bodies moving — or rather existing, for they can hardly be said to move — in the western side of the neigh- ' boring system. The Magellanic clouds may belong to this neighboring system and be at an immense distance from their primary in the direction of our primary, and so within reach of our telescopes. This seems to be a satisfactory explanation of their position. The eccentric motions of the stars in the celes- tial vault may also be satisfactorily explained by our hypothesis. While the stars are all moving in one general direction some of them appear to be moving in opposite directions. This may be shown by the two supposed neighboring systems. Place two celestial globes of equal size side by side with their axes horizontal, parallel and standing north and south. Note a star on the meridian of one of the globes and another star on the opposite side of the meridian of the other globe. Now, rotate both globes from west to east. While the first star sinks to its horizon the other star will rise to its horizon, and then as they continue to revolve they will appear to be moving in opposite directions. By destroying the parallelism of their ECCENTRIC STAB MOTIONS. 157 axes an obliquity of rotation will be apparent. In like manner we may suppose the telescope will reveal to our view other stars of different magni- tudes belonging to other neighboring systems. The inclination of their axes of rotation may greatly vary and every kind of motion be ex- hibited. We may here notice a peculiar optical illusion connected with the motion of double stars. Im- agine two stars of any magnitude made easily vis- ible by our telescopes, to be so situated in space as to be nearly in range with each other, and suppose their rotary motion to be in the same direction, but with different velocities. Under these condi- tions the two stars will appear to be moving in opposite directions, the star that moves slowest appearing to move in a direction contrary to that of the other. If the spectator could have a lateral view of the pair, he would recognize the immense distance between them. 158 AGE OF THE EABTH. XX. The Age of the Earth. We are less interested in what may be the age of the earth at the present time, than we are in what may be its future term of existence. Some authorities suppose it to have existed about ten millions of years and that it may possibly continue to exist for about eighteen millions more. Its future life depends, primarily, on the heat derived from the sun and secondarily on what Helmholtz calls certain " physico-mechanical laws." ■ Every decrease in the temperature of the sun is followed, ultimately, by a decrease in the tempera- ture of the interior of the earth. When this tem- perature reaches a point so low that the earth's surface will not support vegetable life then all life, both vegetable and animal, will cease to exist. The operation of the tides and winds, the resist- ance resulting from the inequalities in the depth of the oceans and seas and the elevation of mount- ains are mechanical forces which, it is claimed, will slowly but surely retard the rotary motion of AGE OF THE EABTH. 159 the planet, and finally reduce it to a condition of utter barrenness and desolation. Laplace, how- evei', says : * " Tlie currents of the sea, the rivers, earthquakes and winds do not alter the rotation of the earth," and also that " For the last 2000 years the sun's mass has not varied the two millionth part." t Under our hypothesis a very different result may be anticipated. That hypothesis provides an abundant and constant supply of fuel for all suns in the future. We know that our sun is rated as a star of about the 4th magnitude. There are a great number of stars in the firmament of vastly greater size and intenser brightness. We have before referred to Alpha Centauri, Sirius and Ca- pella. Our sun would cast a shadow on either of them if placed between the two with Sirius serv- ing as a screen. We also know that the stars vary in intrinsic brightness as well as in size. Now, in view of the infinite supply of fuel poured into the stellar systems from outer space we may legitimately assume that all suns may in- crease in size and also in intrinsic brightness and calorific force. Hence it may follow that no planet will ever perish from diminution of the heat-sup- ply, but, on the contrary, may melt with fervent lieat or be destroyed by the operation of " physico- mechanical laws." Indeed we may with reason- * Mec. Cel. Vol. II., Book V., Bowditch's Translation, tld. Vol. IV., p. 622. 160 -^GE OF THE EABTH. able confidence believe that, from this cause, all planets will ultimately cease to exist as planets and that their elements may be transformed into other ponderables and imponderables that may furnish fuel for distant suns or supply material for new planets to revolve in other spheres. Suns also, may wax and wane and perish and be resurgent in other suns. But there is no neces- sity that they should do so, since there is never a lack of fuel for their flame. There may be varia- tion in the intensity of their radiance and calores- cence as the proportions of hydrogen, oxygen and carbon or nitrogen and ammonia may vary in the fuel supplied. SUN AND AUMOMA. 161 XXI. The Sun and the Aurora. That we may better understand the character of the fixed stars, all of which are supposed to be suns, we may briefly study that of our own. The generally accepted theory of its constitution is that its centre is composed of partially if not wholly liquified solids, of which the spectroscope has re- vealed the following: iron, nickel, copper, zinc, sulphur, and indeed, most of the substances of which the crust of our earth is composed ; that these are surrounded by the photosphere or visible surface of the sun, a kind of dense atmosphere composed of clouds formed by the combination and condensation of such of the solar gases as are suffi- ciently cooled off by their radiation into space. Outside of the photosphere, is the chromosphere, a layer of uncondensed gas which overlies it. The lower portion of the chromosphere is rich in all the vapors and gases which enter into the sun's composition. At a comparatively small elevation the heavier 11 162 SUN AND AUBOBA. gases disappear, giving place to the lighter gases, especially to hydrogen which extends beyond the surface of the sun to immense distances in every direction. Certain highly-colored prominences originating, apparently, in the chromosphere are considered by Young to be extensions of it pro- jected upward to great altitudes and forming enor- mous clouds as beautiful, variable and changeable as those which we see in our terrestrial sky. Proctor, discussing the corona and the observed association between these colored prominences and the inner and brighter parts of the corona says : " That in some way or otlier electricity is at work in the production of the coronal light, may well be believed ; and further, that electrical action is at work in some special manner above the prominence regions is far from impossible." * There is a difference of opinion as to the origin of the spots on the sun. We do not discuss this question since, for our purposes, we are only inter- ested in knowing that a close correlation has been proved to exist between them and the earth's mag- netism. The magnetic needle responds to their influence as readily and distinctly as it does to that of the aurora. The observations of Angstrom and Eespighi showed that the aurora and the zodiacal light are identical. The more rapid the motion of the rays or streamers of the aurora the greater is the excitement of the magnetic needle. * Orbs Around TJs, pp. 276-2'78. SUN AND AUBOBA. 163 In his monograph on the Aurorse Mr. J. Rand Capron mentions one observed in 1877 by Mr. Carl Bork, a Norwegian naturalist, and painted by him from nature, in oil colors. The painting is remark- able for the distinct but tender green of some of the streamers. It is claimed that the spectroscopic observations of the zodiacal light made by Angstrom from which he concluded that it developed the same green line that is exhibited in the aurora, are not verified by later observations. But if the zodiacal light and tlie aurora are identical as claimed by him and Respighi, then there is conclusive reason to believe that their spectra are identical. And the proba- bility is that if the vibrations or undulations of the zodiacal light were as rapid as those of the aurora, the green line would be distinctly developed in it. 1(54 AGE OF BTAES. XXII. The Age of the Stars. It will be remembered that Sir William Her- schel was the first to suggest that the nebulae may furnish us an indication of the age of the stars. This idea is repeated and more or less elaborated by Father Secchi, Prof. Tait and Piof. Langley ; by the first very slightly, by the two latter more fully. Says Father Secchi, " It is not very long since it was believed that the stellar spaces were peopled only by well-defined and compact bodies ; now there have been discovered those enormous masses of gas which are, perhaps, destined to con- stitute other solid bodies, if even already there are not some of them solidified, of which light has not yet brought us the announcement." Prof. Tait,* commenting on Fourier's great work on " Heat Conduction " says : " In astronomy it leads us to the grand question of the age, or perhaps more correctly of the phase of life of a star or a nebulse ; shows us the material of potential * Eecent Advances in Physical Science, p. 22. AGE OF STABS. 165 suns, other suns in the process of formation, in vigorous youth and in every stage of protracted decay. It leads us to look on each planet and satellite as having been at one time a tiny sun, a member of some binary or multiple group, and even now presenting an endless variety of subjects for the application of its methods. It leads us forward in thought, to the far distant time when the materials of the present stellar systems shall have lost all but their mutual potential energy, but shall in virtue of it form the materials of fur- ther larger suns with their attendant planets." Prof. Langley,* concerning the developments of the spectroscope says : " Again, in showing us the composition of the stars it has also shown us more, for it has enabled us to form a conjecture as to the relative ages of the stars and suns," and of the different features and characteristics of the stars, " that a succession in age is not improbably pointed at in these types. Yet if we admit this tempera- ture classification of the stars, we are not far from admitting that the spectroscope is now pointing out the stages in the life of suns themselves ; suns just beginning their life of almost infinite years ; suns in the middle of their course ; suns which are growing old and casting feebler beams." * New Astronomy, p. 238, 166 SOUTHERN HEMISPHEBE. XXIII. The Southern Hemisphere and the Magellanic Clouds. Wb have stated (^supra) that Sir William Her- schel was the first to emphasize the fact that the southern hemisphere is much less rich in the num- ber and magnitude of its stars than the northern. But it is richest in nubeoulae and nebulae. To Sir William and Sir John Herschel we are mostly indebted for our knowledge of the marvellous beauty and wonderful character of the nubeculse, the Magellanic clouds. " The constitution," says Sir John, " of the nu- becula,and especially of the nubecula major, is found to be of astonishing complexity. The general ground of both consists of large tracts and patches of nebulosity in every stage of resolution, from light irresolvable with eighteen inches of reflecting aperture, up to perfectly separated stars like the milky way, and clustering groups sufficiently insu- lated and condensed to come under the designation of irregular, and in some cases, pretty rich clusters. But besides those there are also nebulse in abun- SOUTHERN EEMISPHERE. 1G7 dance both regular and irregular ; globular clusters in every state of condensation ; and objects of a nebulous character quite peculiar, and which have no analogue in any other region of the heavens." Speaking of the glory of portions of the southern sky, Dr. A. B. Gould* says, that "in the region of the southern cross is indescribable. Theie where the milky way is crossed by the thick stream of bright stars which skirts the rim of light, its brilliancy is wonderfully increased, and it exhibits a magnificence unequalled in any other portion of the heavens." Humboldt writes that the lesser of the Magel- lanic clouds " is surrounded with a kind of desert, a desert of intensest darkness." We shall notice in the sequel the significance of the position and composition of these clouds. Swedenborg was first to note, in 1734, the varia- tion of the magnetic force from the equator to the poles, a fact afterward noted by La Perouse, in 1787, and still later by Humboldt, in 1798. " The intensity of this force," says Humboldt, " is least at the equator and greatest at the poles." Swedenborg also noted the fact that the southern magnetic axis is longer than the northern, a fact also noted by Prof. Hansteen, in 1819, and con- firmed by Sir James Ross during the cruise of the Erebus and Terror, in 1839-1843. It is one of the most interesting phenomena connected with the * Account of the Cordoba Observatory. 168 SOUTHERN HEMISPHEBE. motion of our globe. The position of the two poles is given as follows : South magnetic pole 75° 5' South Lat. North magnetic pole 75° 0' North Lat. Prof. Hansteen gives the following : Period of revolution of North Mag. pole, 1890 years, mean annual motion 11'425. Period of revolution of South Mag. pole, 4605 years, mean annual motion 4'69. Discussing the investigations of Sabine, Ross and Gauss, Humboldt writes,* " if the intensity near the south magnetic pole be expressed by 2.052, Sabine found it was only 1.624 at the North Mag. pole." Sir Isaac Newton proved that the preces- sion of the equinoxes was due to the preponder- ance of matter about the earth's equator as com- pared with its poles, whereby the former was more strongly attracted than the latter, thus producing a gyratory or wabbling motion of the poles of the earth around those of the ecliptic. If the fact that the southern magnetic axis is longer than the northern shows that the centre of gravity in the earth is not the centre of figure, this latter lying nearest to the north pole, then this fact would materially influence the precession of the equinox. *Kosmos, Vol. I. p. 197. NEW COSMOGRAPHY. 169 XXIV. A New Cosmography and Celestial G-eography. It remains for us to apply the facts and forces we have been considering to the Geography of the Heavens, the distribution and motions of the stars, the system or systems under which they are ar- ranged and the laws which govern their move- ments and influence their duration. Following Bacon and Kant who, as before noted, designated Time and Space as " Forms," Ave have assigned certain Forms to space in developing the new cos- mography and the new celestial geography. There are two ideas, or rather beliefs, that are strongly intrenched in the popular mind. One is that the stars are infinite in number and another is that they are infinite in duration, that they will never die. We sliall learn that they are not infinite in number and that all the planetary stars may cease to exist. There are certain curves and surfaces that we shall need to utilize and refer to so frequently that it will be well to understand their origin, forms and functions. All these curves, and none others, can be cut from a single right-angled cone. If we pass a plane through this cone perpendicular to 170 NEW COSMOGRAPBT. its axis it will cut out a circle ; if we pass it at any angle with the axis greater than 45° it will cut out an ellipse ; if parallel to the axis at any dis- tance below the apex, an hyperbola ; if parallel to the side, a parabola. If the plane be passed from the apex to the base along the axis, it will cut out an isosceles triangle. If we revolve a circle upon either of its diameters it will generate a sphere ; if we revolve an ellipse on either of its axes it will generate an ellipsoid ; if we revolve a parabola upon its major axis it will generate a paraboloid and if we revolve an hyper- bola upon its major axis it will generate an hyper- boloid. These curves have certain characteristics. A circular space or area is the largest that can be en- closed by any given line. The planets rotate on their axes in circles, they revolve in their orbits in ellipses. Periodical comets revolve round the sun in ellipses; unreturning comets in parabolic or hyperbolic curves. The trajectories of shooting stars are parabolic. In a solid cube of wood we can cut out or ex- cavate an hyperboloid from each of its sides. The straight lines joining the centres of each pair of opposite sides will pass through the centre of the cube itself and will form the major axes of the hyperboloids. The two hyperboloids opposite each other and having a common axis are technically called nappes. NEW COSMOGRAPHY. 171 As there are six hyperboloids there will be three pair of nappes. The straight lines passing at right angles to each other, through the point of inter- section of the two major axes of the nappes and tangent to the curve or surface at an infinite distance, are called asymptotes. The hyperbolic curve and the right line called the asymptote or tangent, bear a peculiar relation to each other for, although the latter is called tangent to the former, yet, practically, they never coincide, as is mathe- matically demonstrated.* The spaces, cut out of our cube, which form the hyperboloids are hyper- boloidal spaces. The space between the hyper- boloids but exterior to them is an asymptotic space. For convenience we may call it an asymptoid. Now, concerning all these lines and spaces we notice one transcendent truth, that, as here combined, they all have their origin in one common centre and they are all injinite in extent. If a sun possessing infinite photometric power ivere placed at that centre its rays, if they met with no obstruction, would illuminate all space. If infinite space were illuminated by a vast number * Upon this fact is founded Addison's famous comparison of the spirit of man with the Divine spirit. {Spectator No. III.) " The soul," he says, " considered with its Creator, is like one of those mathematical lines that may draw nearer to another for all eternity without a possibility of touching it." 172 NEW COSMOGRAPHY. of suns attended hy their secondary orbs, an all- seeing eye, placed at that centre could survey and scan them all. If an omnipotent, inherent, self-acting force were placed at that centre it could sway, move, govern them all. THE NEW SYSTEM. 173 XXV. 77ie New Si/stem. — 2%e Asymptoid and the Hyper- boloids. — The Matter and Motion Within Them. All philosophers and astronomers have supposed space to be filled with matter which is, in part, systematically arranged, is subjected to certain forces and governed by certain laws, but no specific, original form iii which it exists and is conserved until needed for use in organic work has been proposed. As we have already stated, the stellar system that meets with most favor and is generally accepted as true, is that which is based upon the nebular hypothesis. The culmination of this system is the Milky Way accompanied by star clusters, young stars, nubec- ulse, nebulae and star-dust. Its most sublime and striking features have been described and mapped by the Herschels and by Father Secchi. A small section of it in which our sun is supposed to be located has been especially delineated. This system is very grand and im- pressive, but how small a portion, comparatively, of infinite space does it utilize, does it occupy ? 174 THE NEW SYSTEM. The only system which transcends this, which sweeps into wider areas and recognizes other Milky Ways with all their grand accompaniments is that of Lambert, which has been already noticed. The new system it is proposed to develop begins with the hypothesis that all space, by the action of certain laws, is divided into different forms or compartments in the manner we have already in- dicated ; that the chief central form to which all the others adjoin is the asymptotic which we call the asymptoid ; that this spreads out infinitely and embraces, but does not surround, the six hyper- boloidal forms or spaces which we designate as hyperboloids. These six forms, as before noted constitute three pairs of nappes. All the nappes ex- tend outward infinitely from the lines in which they adjoin the as3'^mptoid. The axes of these nappes intersect each other at right angles and are infinite in length. This point of intersection is the apex of the cone from which the hyperboloids were cut. These hyperboloids are all exactly equal to each other and, mathematically, their equations are identical. The points at which the axes of the nappes in- tersect the hyperboloids are in the centre of the hyperboloids themselves, and the positive poles of all the suns in all the hyperboloids also point to wards this centre, as the positive poles in all the planets point towards their suns. All the planets connected with all tlie suns in all the hyperboloids W0&:^3m*^:i^^if-.!:?f'i^:\ South. The X-shaped space represents the Asymptoid with Spheres. Hyperboloids with Planets, etc. E. The Earth. M. The Magellanic Clouds. AA. Asynnptotes. The other spaces are parts of TBE NEW SYSTEM. 175 revolye from west to east or from left to right, and possibly the whole omniverse may revolve in the same direction. We speak of " fixed stars." They are so approxi- mately in size and in intrinsic brightness and in re- lation to each other. But since the planets have a circular rotation on their axes and revolve in ellipses around their primaries, in both cases with vastly different velocities and in vastly different times, it is evident that not one of them occupies the same position in space during any two consecu- tive periods of time nor will any of them hereafter occupy any position that they have occupied here- tofore. Motion is the life of stars, stagnation their death. We must emphasize the cardinal fact that the arms, so to designate them, of the asymptoid grow constantly narrower as they recede from the vertex of the curve or form. The hyperboloids are six domes. The areas of these domes are constantly enlarged as their axes are more and more elongated. Considering them as spaces occupied by celestial bodies it seems clear that light must diminish as it recedes from their centres until it is lost in the utter darkness that envelops them all. Some of the gases after their formation under fixed laws as before noted which have strong affin- ities for each other may be combined in their partially condensed condition. Other and innu- merable combinations, adhesions and mechanical 176 THE NEW SYSTEM. associations may occur between them in all stages between the extreme poles. And by these varied and numberless combinations every possible form and kind of matter is produced. Hence we have stellar and planetary systems with all their accompani- ments and belongings ; suns of every size and kind and color ; planets, large and small, with or with out a single or several satellites ; asteroids, meteo- rites, star clusters, nebulae, nubeculse and star-dust. To the omnipresence of magnetism we must add its omnipotence, in the sense of its infinite and constant action, its persistent, pervasive vis-viva. It is always alive. There are various and simple ways of showing this. The simplest is the single thermo-electric pair formed by uniting bars of antimony and bismuth at one end and connecting the opposite, open ends, with a wire. By heating the united ends a direct current will be generated ; by cooling them the current will be reversed. Another simple method of exhibiting the magnetic force is the following. Place a magnetic needle in its normal condition when at rest standing north and south. From a distance outside, at right angles to tlie needle, present to it the poles of a magnet. As like poles repel and unlike poles at- tract, let us use the north pole of the needle and of the magnet. As we approach the magnet to the needle from the east the latter is deflected to the west. It is pushed out of its normal direction more and more the nearer the magnet approaches THE NEW SYSTEM. 177 it. This pushing is persistent so long as the rela- tive positions of the magnet and the needle are maintained. From month to month, year to year, these opposite forces will continue to act. With the least variation in the intensity of the magnetism either in the atmosphere or the magnet, motion is instantly manifested. It is not simply inertia, it is in fact a perpetual force and also practically, perpetual motion, for the invisible vibrations of force are constantly passing between the magnet and the needle, manifest mo- tion resulting, as we have stated, the moment there is any variation in the magnetic tension. " In the incandescent points which produce the electric light, when the current is turned off dark- ness ensues, but they do not cease to radiate. There is still a copious emission from the points." * It has been shown by Matteucci that, in living animals an electric current is perpetually circulat- ing between the external and internal portions of the muscles. If the physical elements of the body were imperishable and unchangeable, this motion would be perpetual. Any number of needles may be placed in the line of magnetic action and all of them will be more or less deflected according to their distance from the magnet. We placed four needles in this line, the first needle one inch, the second two, the third three and the fourth six inches long, which * TyndaU : Heat as Motion, § 306. 12 178 THE NEW SYSTEM. we designated in the same order as Mercury, Venus, the Earth and Mars. They were placed at distances from the magnet varying from 12 to 60 inches, the longest needle at the greatest distance. The removal of the three interior needles from the line of force did not cause the slightest varia- tion in the deflection of the outer one. As many needles, of any length, as the space would hold, could be placed in the line of magnetic force, and each would at once be deflected to the same extent that it would when it stood alone in the line, each needle contributing its own latent magnetism to the main line of force. It is this magnetic force, as we have indicated, that determines the condi- tions and motions of the matter in the hyperboloids. The next question is one of intense interest, name- ly : what are the contents of the asymptoid and to what conditions and motions are they subjected? Difficult as the question is we do not despair of its partial elucidation. Let us again note' more particularly the form and position of this space in reference to all space. We have already described its geometrical origin and figure, showing that it holds within its em- bracing but not surrounding curve as before stated, six exactly equal and homogeneous hyperboloids. Hence its centre may, for our purpose, be con- sidered as the centre of all space, since every ra- dius extending outward from that centre will be infinite. We have also pointed out the wonderful TEE NSW SYSTEM. 179 characteristics of this centre, the perfect equilib- rium of all space and matter around it and that from it, every adequate influence, energy or force could be easily, equably and systematically distrib- uted and extended in all possible directions. We have also noted the origin — Deity — of all power, energy and force. We may then consider this asymptotic space, from its peculiar and absolutely central position and its marvellous adaptability for the propagation of infinite action, to be the seat of infinite power or, as we may reverently suggest, the dwelling-place of God. 180 2--£f^ ASYMPTOin. XXVI. The Asymptoid. — Transcendental Matter. — Light without Heat. — Peculiar Function of Nitrogen. — Nitrogen Zones. — Exhilarating Atmosphere. — Ror diant Matter. What are the contents of this space ? We may reach some conclusions concerning them by an- alogy, by inference from what we know of those appertaining to the hyperboidal spaces. We have studied the character and properties of the various forms of matter which they contain, of the ponder- ables and imponderables, and of the various forces to which they are subjected. All this matter and all these forces are very substantial, very real and easily and effectively made manifest to our senses. It appears reasonable to infer that they must be analogous to those found in the asymptoid. But we may readily believe that the latter are of a more transcendental character. We know that matter exists here in an almost infinite variety of forms, and that some kinds of matter are allo- tropic, that they are capable of existing in two or more conditions which are distinct in their physi- THE ASTMPTOID. 181 cal or chemical relations. The most familiar and conspicuous of these is carbon, which occurs crys- tallized in octahedrons and other related forms, in a state of extreme hardness in the diamond ; it also occurs in hexagonal forms of little hardness, as black le'ad, and again in a third form of entire sofi> ness as lampblack and charcoal. In some cases one of the allotropics is peculiarly an active state and the other a passive one. Thus, among gases, ozone is an active state of oxygen and is distinct from ordinary oxygen which is the element in its passive state. There are several other substances that exist under conditions that are, chemically, quite distinct though not exactly allotropic. We also know that the spectroscope reveals to us in all the celestial bodies numerous forms of matter that are identical with those that we find in our own solar system. We may, therefore, legitimately conclude that entirely similar forms of matter exist within the asymptoid, and that they may be more eclectic, more transcendental in their properties and characteristics, that they may be less dense, more refined, more delicate in their structure. And the illuminating and calorific conditions of the asymp- toid may be as transcendental as its matter. " The sole difference," says Tyndall, " between light and radiant heat is one of period. The waves of the one are short and of rapid occurrence, while the waves of the other are long and of slow occur- 182 THE ASTMPTOID. rence." From the refinement and exaltation of everything pertaining to the asymptoid we may infer that the light and heat developed within it must be of the same character. That light will be, not sparkling, intermittent, dazzling, but the calm, steady, transcendent, eternal glow of the Light Ineffable ; the heat, not intense, scorching, oppress- ive, but gentle, radiant, glowing, illustrating, in its supremest state, that peculiar condition of light without heat of which nature furnishes us minia- ture examples in the firefly — Lamphyridge — and the glowworm — Elateridee. These two lights are a most interesting study. They are, considering the size of the living, fleshly forms in which they are developed, as brilliant as that of suns. When caught and held in the hand no sensation of heat is felt, whereas if a person held in the same way two bits of charcoal of the same size heated to redness, the burn would be most painful. The experiments of Mr. N. Tesla as reported in a lecture before the Electrical Engineers in London, show decided progress in the development of this kind of light. We may also mention his very sanguine expectation, twice expressed, that under certain conditions " telephoning could be rendered practicable across the Atlantic " and also that " ere many generations pass our machinery will be a power obtainable at any point intlie universe. .... Throughout all space there is energy. Is THE A 8 TMP TOID. 183 this energy static or kinetic ? If static, our hopes are in vain ; if kinetic, and this we know it is for certain, then it is a mere question of time when men will succeed in attaching their machinery to the very wheelwork of nature." The advice of the late Mr. R. Waldo Emerson was " hitch your wagon to ,7 star." Mr. Tesla apparently expects to accomplish this end by the aid of electric traces. However, it has been abundantly demonstrated by modern hypnotists that Telepathy — thought transference, thought ex- change — is practicable through thousands of miles and there is no reason to doubt that it may be achieved through much greater distances. An- swered silent prayer is successful Telepathy, whatever the distance necessary to secure that success may be. The gases, refined and purified, must be found in the asymptoid. The four most important of these are oxygen, hydrogen, nitrogen and carbonic acid. The three first are electric conductors, the more dense the more effective. Carbon, as we have seen, is a good conductor in all its forms except the diamond. Nitrogen is devoid of color, taste or smell, is mechanically mixed with oxygen in our atmos- phere and combined with it in nitrous oxide. Whereas oxygen is the most magnetic of all the gases, nitrogen is not at all so, it is entirely neu- tral or zero. 184 THE ASTMPTOID. Another remarkable property is its power to sustain life, which indeed cannot be continuously sustained- without it. It not merely helps to sus- tain life but under certain conditions, as we have before noted, produces its highest exaltation. Strangely antagonistic to this is its destructive, explosive power. It is an indispensable ingredient in the different forms of gunpowder and dynamite, is supposed to be, and undoubtedly is effective in the explosion of thunderbolts. Another of its marked peculiarities is its partial opacity to heat and transparency to light. While it permits the transmission of the radiant light of the asymptoid into the hyperboloids it partially absorbs the oppressive heat of the latter and pre- vents its passage into the former. Ammonia is composed of one part of nitrogen and two of hydrogen. Now hydrochlorate, car- bonate and sulphate of ammonia absorb heat and extinguish combustion according to their density. Leslie proved that heated bodies cool more rapidly in hydrogen gas than in our atmosphere, and Tyndall showed that a continuous spectrum of nitrous acid gas thrown on a screen developed, under certain conditions, numerous dark bands, the rays of which are intercepted by the gas while the intervening bands of light were allowed to pass. At this point we call especial attention to a peculiar function of nitrogen as connected, by our hypothesis, with the forms and divisions of the THE A8YMPT0ID. 185 new system, We know that of the three so called permaent gases, oxygen, nitrogen and hydrogen, the specific gravity of the first is greatest, of nitrogen next, while hydrogen is lightest. As we ascend from planets into space these gases occur in the same order, the heaviest gas, under normal conditions, being always lowest. We have supposed that all the forms of matter and force, all things within the asymptoid are more eclectic, more transcendental than the forms of matter and force and all things in the hyperbo- loids. Hence there needs be something to indicate the space which separates them, that lies between them. Now nitrogen, magnetically, is zero, neutral, neither attractive nor repulsive, while at the same time it may be thoroughly and easily permeated by the magnetic force. It also, as we have noted, transmits light and absorbs heat. With these peculiar and remarkable properties it is admirably fitted for a dividing curtain between the asymptoid and the hyperboloids. And that is the function we may suppose the nitrogen to ex- hibit, and, therefore, that a zone of gases of which nitrogen is the chief constituent, ammonia being another, fringes each of the hyperboloids. As oxygen is the most abundant and indispen- sable of the gases in the hyperboloids so in its eclec- tic state it must be most effective and pervasive in the asymptoid, and the oxygen and nitrogen which here form exhilarating gas may there be so 186 THE ASTMPTOID. refined, so transformed, and so exquisitely com- bined as to form an atmosphere, the mere respira- tion of which will be a perpetual delight. As indicating the extent rather than the charac- ter of the difference between the forms of matter in the asymptoid and the hyperboloids it may be suggested that the granite of that space may be diambnd ; and the gems may all be transfigured ; the flowers may be the shadowy embodiment of a perfume; the water, flowing volumes of radiant mist, and its bow of promise a transfigured iris. All good and beautiful things we know here may be transfigured and glorified there. And we may the more reasonably anticipate re- sults similar to these when we study the beautiful experiments of Crooke with "radiant matter" operating in vacuum tubes or bulbs of glass, par- ticularly 'the delicate shadow of the cross, the fanciful glass railway and the fairy-like wind-mill of the radiometer, heretofore noticed. It will be borne in mind that these tubes do not furnish a perfect vacuum. SPIRITISM, NE W MA TTEB. 187 XXVII. Spirits. — Spiritism. — Magnetism in the Inner and Outer-stellar Space. — The Ether, What is it ? — New Matter. — Creation and Evolution. Defining Spirit as the highest order of wisdom, of consciousness, we may define spiritism as the action of spirit on matter in a manner analogous to the action of thought on the brain or of the will on the muscles. In certain cases, " when we come to electricity," says Dr. Lodge,* " we find that some kind of mat- ter has more electricity associated with it than others, so that for a given electromotive force we get a greater electric displacement ; that the elec- tricity is, as it were, denser in some kinds of mat- ter than in others." We have shown (on p. 18) that magnetism can be condensed, compressed, and that, under certain conditions, what Faraday calls " physical lines of magnetic force," must be con- sidered as extending to an infinite distance. We know that magnetism can also be expanded. * Modern Views of Electricity, p. 349. 188 SPIRITISM, NEW MATTEB. Hence the magnetism of the asymptoid may be less condensed than that in the hyperboloids, to which, however, it must respond. We must further note that there are at the present time a certain limited number of solar systems containing a limited number of celestial bodies. Were there ever a greater number of these systems and bodies? Whatever may have been true in the past we know that, by the law of the conservation of forces and the indestructibility of matter, whatever changes there may have been in the number and condition of these systems and bodies there can never be any less or greater amount of force, nor any less or greater quantity of matter in them than now. These forces and this quantity of matter may be sufficient to sustain the present systems indefinitely in their numerous and varied changes. But it is impossible that they should furnish matter for any new systems. It is equally impos- sible to believe that the work of creation or evolu- tion is ended ; that no more radiant suns are to illumine the outer darkness ; that no other planets are to respond to their genial influence ; that the boundless realms of outer-space are to be shrouded in the blackness of darkness forever ; that the work of Deity is finished, and that God is hence- forth to rest content in the contemplation of a completed task, or rather in the suspension of the exercise of His omnipotent will. SPIBITISJU, NEW MA TTER. 1 89 Whence, then, is to be drawn the new matter for new worlds ? From the outer-stellar space. This infinite outer-stellar space is a reservoir containing an infinite supply of matter for an infinite number of solar systems. Since all matter is amenable to the magnetic force the latter becomes a carrier for the former, endless quantities of which it transports into the hyperboloids where it is transformed into all varieties of celestial bodies. The first form of transformation is " star-dust " or "world-stuff." As the magnetic force increases in strength the suc- ceeding forms are the nubeculae, nebulae, meteor- ites, comets, asteroids, planets and suns. These are constantly forming, growing, grouping accord- ing to the laws by which tliey are governed. While these laws are certain and persistent they are at the same time elastic, flexible, accommodat- ing in their action. No forces nor forms of mat- ter in any one hyperboloid can interfere vi^ith or derange the forces or forms of matter in any other hyperboloid. Every celestial body must revolve or move within the limits of the space in which it originated. Hence, by our hypothesis the illimitable stores of the outer-stellar space are constantly poured into the limited zones of the hyperboloids. Hence again, we have inexhaustible fuel for perpetual consumption, and hence also, we have in all the stellar and planetary systems the most perfect, the most sublime exhibition of perpetual motion. The 190 SPIRITISM, NEW MATTES. system is complete. All its forms are homogene- ous, harmonious. Its equilibrium is absolutely perfect. Its mechanism it seems impossible to improve. Its action is smooth, direct, orderly and systematic. Under it the grand processes of nature are carried forward and developed without haste and without hesitation, but with unerring purpose and absolute certainty. And it is auto- matic, self-supporting, self-sustaining. Neither its matter, its motion, or its force, or energy can be annihilated. And yet this grand system, admit- ting its actual existence, is as absolutely a creation as would be that of a single planet or a single organism. It is quite immaterial whether the ultimate end of that creation be consummated in six days or six millions of years. It is the result of a law established by an Infinite Power, an In- finite Will, and to such a Will, such a Power, instantaneous production is as easy as the most protracted period of evolution. We may here repeat our hypothesis concerning the origin, genesis and operation of all possible forms of energy. While it is no part of our design to discuss theological or teleological ques- tions, it seems necessary here to consider one point relating to Deity. The popular idea of God is that his chief attributes are omniscience, omnipo- tence and omnipresence. As to the latter, the Rev. Theodore Parker's characterization of it may be considered a fair expression of the popular no- SPIRITISM, NEW MATTER. 191 tion. In one of his " Ten Sermons of Religion," he says : " God must be omnipresent in space. There can be no mote that peojjles the sunbeams, no spot on an insect's wing, no little cell of life which the microscope discovers in the seed-sproule of a moss and brings to light, but God is there, in that mote, in that spot, in that cell." If God is in all these forms of things He must also be in the forms of all other things, all things good and beautiful, and all things vile and repulsive, all things lovely and clean, all things filthy and foul. What a very repulsive idea of God is this : a vague vastness, an incom- prehensible indefiniteness, filled with an agglomera- tion of all forms of matter, sheol included. God must have a personality, an individu- ality. It is impossible to love, worship, honor and obey a mystic immensity with everything in it. God is omnipresent by virtue of His omnis- cience. He comprehends, is conscious of every- thing that transpires anywhere and everywhere through the operation of His own laws and by the exercise of His own will. A being omniscient and omnipotent, infinite in wisdom and in power, is perfectly competent to fix the conditions of his own existence as well as the form of his own per- sonality. The Saviour informs us that God is a spirit.* Whatever His form may be, wherever it * St. John iv. 34. 192 SPIRITISM, NEW MATTER. is, whatever portion of space it occupies, that is the centre of all space, and from thence emanate all possible degrees and forms of energy. " XI. In the nature of the finite mind, as such, is to be found the reason why the development of its personal consciousness can take place only through the influences of that cosmic whole which the finite being itself is not, that is, through the stimu- lation coming from the Non-Ego, not because it needs the contrast with something alien in order to have self-existence, but, because, in this respect, as in every other, it does not contain in itself the conditions of its existence. We do not find this limitation in the being of the Infinite ; hence, for it alone is there possible a self-existence, which needs neither to be initiated, nor to be continu- ously developed by something not itself, but which maintains itsplf within itself with spontaneous action that is eternal and had no beginning. XII. Perfect .personality is in God only ; to all finite minds there is allotted but a pale copy there- of. The finiteness of the finite is not a producing condition of this Personality, but a limit and a hindrance of its development." Such is Lotze's exposition of God's Personality.* * Miorocosmvis, vol. II. pp. 687, 688. UNIVEBSES. OMNIVEBSE. 193 XXVIII. Universes.- — Omniverse. — Stellar Systems. — Spheres and Planets. — • Life in Them. — Degrees of Light. Otje new system is composed of seven forms of space, one, the asymptoid, holding in its bowl, as before noted, the six hyperboloids. Each of these latter presents all the features, forces, motions and actions of a universe. Hence we have six uni- verses. As indissolubly united each with all, we may call the grand aggregate system the Omni- verse, and this omniverse is enveloped by and per- meated with the infinite magnesphere, whose cur- rents of life and force, infinite in number, are for- ever coursing towards its vital centre. As each hyperboloid may contain a number of stellar sys- tems, so the asymptoid may contain several celestial systems and spheres that may be transcendental or transfigured forms of the stellar systems within the hyperboloids. By our hypothesis there is but one stellar system in the Asymptoid. In the hyperboloids there may be an indefinite number. The habitable orbs in the former we designate as 13 194 UNIVERSES, OMNIVEBSE. Spheres, those in the latter as Planets, and the sentient life existing within these supernal spheres may be more exalted, more spiritual, may approach nearer to the divine, eternal life and spirit. The vital, spiritual succession may be systematic, ex- tending from the centre outward through the asymptoidal and all the hyperboloidal spheres. The life-changes, ascending from the hyp.erboloidal spheres through those in the asymptoid to the supreme, vital centre, may be similar to the change that the mortal spirit experiences when it passes from earth to paradise. Thus there may be an endless succession of spiritual transformations, each change being from a lower to a loftier and nobler sphere of spiritual life, the constant en- largement of the hyperboloids and the asymptoid providing ample room for every new sphere with the ever-effluent Divinity permeating them all. These spheres may vary in dimensions and in- crease in number constantly as the asymptoid in- creases also in its dimensions. We may suppose that a vast number of the planets in the stellar systems are the homes of sentient beings and that all the spheres in the asymptoid are likewise so. It is utterly incredible that all these stupend- ous systems should have been created and set in naotion merely to exhibit the power or to gratify a passing fancy of their Creator. " Life," says Father Secchi, " fills the universe, and with life is associated intelligence; and as UNIVEBSE8, OMNIVERSE. 195 beings inferior to ourselves abound, so may there in different conditions exist others of capacity in- finitely greater than our own. Between the feeble light of that divine ray which glows in our frail structures, by the help of which also it is permitted us to comprehend so many wonders, and the lofty wisdom of the great Author of all things, there may possibly be interpolated grades of created beings infinite in number, for some of whom theorems which are to us the fruit of arduous studies may be simple intuitions." * We have remarked the differentiation of the contents of the asymptoid from those of the hyper- boloids. We can better appreciate this difference by considering the feebleness of the light of our sun when compared with that of stars of greater magnitude. Sir John Herschel informs us that the intrinsic light of Alpha Centauri, one of the stars nearest to us, is more than twice that of our sun. But the light of Sirius, a star of the first magnitude, is more than four times that of Alpha Centauri ; indicating that its intrinsic splendor is sixty-three times that of the sun. As the intrinsic brightness is supposed to afford some indication of their magnitude it follows that Sirius must be im- mensely larger than our sun. Its light is 26 years * Johnson's Cyo. , Art. The Universe, translated from the Italian by the late Pres. Barnard of Columbia College, one of the best polyglot scholars of our time, both in literature and science. 196 UNIVERSES, OMNIVERSE. ill reaching us. But the light of Capella requires 72 years, about three times as long, and its in- trinsic splendor is greater than that of Sirius. Its proportions are bewildering and if our sun were placed between it and Sirius and within photometric range of both, it would cast a shadow upon Sirius, acting as a screen for the light of Capella. ANIMAL MAGNETISM, PSYCHIC FORCE. 197 XXIX. Animal Magnetism ; Psychical and Physical Force / Spiritualism, ; Magnetic Men and Women / Subtle and Extraordinary Magnetic Energy ; Delirium, Tremens ; Love ; Devotion ; Saints ; Martyrs ; Procreation of Physical Life ; Hered- ity ; Pre-natal Impressions ; Seeds and Plants; Pre-experience ; Reminiscence ; Presentiment ; Dreams. We have indicated {supra) the relation between Spirit and Spiritism. We conceive that the magnetism of the hyperboloids becomes spiritism * in the asymptoid. With the aid of these two forces — spiritism and magnetism — using the former in its diviner sense, we may solve the problem of all life. The numerous proofs of the existence of animal magnetism presented by Matteucci, Du Bois-Ray- * It is unfortunate that the use of this term by charlatans and impostors should have made it offensive ; but we ought not to let the abuse of a good thing impair our faith in its value. 198 ANIMAL MAGNETISM, PSYCHIC FORCE. moud and others are well known and indisputable. Magnetic fish and birds are equally well known. Tlie correlation between spiritual or psychical, and physical force has been abundantly demon- strated by Charcot, Bernheim, Ribot and other hypnotists and psychologists. The remarkable and undeniable effects produced by so-called spiritualists are due to the same cause. If we may suppose that magnetism is — next to om- nipotence — the fundamental force, the living force, the force that furnishes the vis-vitoe of all the natural forces, we may, in the sequel, use this term instead of electricity in the further exposition of our theme. Dr. Hake sets forth * that " the chemical changes as they occur in the -blood system and (are) com- prised in the act of oxidation do not result in the evolution of heat hut force which becomes magnetic by the agency of the blood corpuscles ; and this is certainly consistent with what we know of cell life. On this hypothesis, the blood cells form chains and conductors for the magnetic current thus generated, and this is subsequently metamorphosed into heat at every point of the system. On , reaching the cerebro-vital centres it becomes vital force '' — another name for magnetic force — " and this becomes eventually heat, namely : when it is transmitted to enable the consummation of a vital act, such as sensation, muscular motion or secre- tion * Kingsett's Animal Cliemistry, pp. 180-181. ANIMAL MAGNETISM, PSYCHIC FORCE. 199 " The experiments of Du Bois-Raymond in par- ticulai- go to prove that nerve force is only mani- fested through media that are not yet met with out of living bodies. On Hake's hypothesis nerve force is derived from the common centre — the brain — where it is stored in the gray matter of which brain matter is partly composed and from which the nerve tubes spread everywhere." He further reasons that " when the cei-ebro-vital force is united in action within, in the same organic medium with other forces influencing us from without, viz. : light, sound, heat, etc., new results are attained aud phenomena of sense and intelli- gence are observed." "Electricity is produced," saj's E. I. Houston,* " during the growth of both animals and plants." During active growth plants form an appreciable source of electricity. Buff has shown that the roots and interior portions of plants are always negatively charged, while the flowers, fruits and green twigs are positively charged. " Electricity is produced in the bodies of all animals during life. Some animals in addition to this electricity, which is essential to their life, possess the ability to produce sufficiently powerful discharges to serve as a protection against their enemies. This is the case both with the electric eel and the electric ray." * Electricity and Magnetism, p. 67. 200 ANIMAL MAGNETISM, PSTCUIC FORCE. All animal tissues, molecules, cells, fibres, nerves, muscles and sinews are good or partial magnetic conductors. Their potential is proportional to the service they are required to perform in order to preserve the normal condition of the organism. When the organism falls into an abnormal condi- tion the change is due to or is follovi^ed by a dis- turbance of the magnetic equilibrium. We often hear of very magnetic men and women. It is not a mere unmeaning phrase. Very many have met such and acknowledged, without being able to explain, their influence. It is by one form of this force — magnetic — that the orator, the poet, the story-teller, hold and charm their audiences. It is this force that produces panics in excited crowds. It is by this force that the body, when the brain is in an abnormal condition, through delirium tre- mens or an epileptic fit, is charged with five-fold its normal strength, so that five men can hardly restrain one man. And yet, thei'e is no change in the mechanism. It is the stimulus that is applied to the brain that produces this vast "increase of power. This is also especially notable in men who are enraged or crazed. They perform wonderful feats t)f strength when excited of which they are utterly incapable in their sober moments. The extraordinary deeds of valor recorded as having been performed by the leaders and knights of the crusades and by heroes and their followers in every earnestly-contested defensive or aggre- ANIMAL MAGNETISM, PSYCHIC FORCE. 201 sive war are not exaggerated. They are only re- ports of simple facts. It is this force that enables men to endure the severest hardships and trials, to defy, if not to conquer, fate. It is this force that awakens love at first sight. It is the vibration of this force through the eyes that thrills the hearts of the lover and the loved. It is this force that inspires the soldier's courage, the mother's love, the saint's devotion, the martyr's constancy and the bigot's zeal. By this force prayer is borne heavenward. It swells the anthem of praise, the song of joy, the shout of gladness, the carol of birds, and develops the weird notes of the singing flame. But the intensest manifestation of this force is the procreation of physical life. It is only neces- sary to suggest the immense intensity of the sexual passion, the delirium of love. Remove, eliminate entirely that sentiment and its concomitants, that irresistible magnetic attraction, from the physical constitution, and all animal life would soon cease from the earth. Mark the horse as portrayed by Job : " The glory of his nostrils is terrible. He paweth in the valley, and rejoiceth in his strength. He mocketh at fear, and is not affrighted ; he swalloweth the ground with fierceness and rage, and he smelleth the battle afar off." Observe the stallion when, in the season, he is led forth for exercise. Mark his expanded nostrils, his flashing eyes, his mobile 202 ANIMAL MAGNETISM, PSYCHIC FORCE. ears, his magnificent crest, his silken, shining coat, his distended veins and muscles, his lofty, elastic tread which seems scarcely to touch the earth, and his vigorous and graceful motions. What an emhodiment of passion and of power, and what a magnificent magneto-calorific machine ! The perpetuation of the human race involves the awful responsibilities of heredity. We know the inexorable fidelity with which parental traits, both physical and mental, are transmitted to the offspring. It is one of the most remarkable in- stances of the persistence of force. And one of the most extraordinary phenomena of hei'edity is the one by which any particular trait may be em- phasized by a pre-natal impression or influence, commonly known as the " birth-mark." In these cases a sudden and strong excitement of the brain and nerve-power of the mother causes great surprise or fear, such as seeing some very repulsive object or some scene in which certain objects, attractive or repulsive, are specially notice- able. The result is that an indelible mark or image is fixed upon the body of the unborn infant. This is an instance in which the psychical and physical forces act at once and together in perfect accord. "Sensations and ideas," says Lewes, "spring up in the mind as flowers spring up in the field. .... Science is prompted to seek out the con- ditions of their appearance, their changes and their ANIMAL MAGNETISM, PSYCHIC FORCE. 203 disappearance We know that a seed placed in suitable soil will throw out root and stem. We can trace its development as it draws certain materi- als from the soil and the atmosphere. But we know (also) that the seed itself is a product, and has its own special determinism. The forms which the seed assumes are partly peculiar to it and partly- common to myriads of others, nay, some of its forms are common to all plants whatever." Concerning the electricity of plants, the follow- ing conclusions were arrived at by Wartman (Bib- liothdque Universelle de Gendve, Dec, 1860), after an investigation continued for two years : — " 1. Electric currents are to be detected in all parts of vegetables but those furnished with insu- lating substances, old bark, etc., etc. "2. These currents occur at all times and seasons, and even when the portion examined is separated from the body of the plant, as long as it continues moist. " 3. In the roots, stems, branches, petioles, and peduncles, there exists a central descending and a peripherical ascending current; Wartman calls them axial currents. " 4. Lateral currents may be detected passing from the layers of the stem where the liber and alburnum touch, to the surrounding parts. "5. In the leaf the current passes from the lamina to the nerves as well as to the central parts of the petiole and stalk. 204 ANIMAL MAGNETISM, PSYCHIC FORCE. " 6. In the flowers the currents are feeble. They are very marked in the succulent fruits, and in some kinds of grain ; the cun-ents from fruits pro- ceeding in most cases from the superficial parts to the adjacent organs. The strength of the currents depends on the season, they are greatest in the spring when the plant is bathed in sap. " 7. Currents can also be detected proceeding from the plant to the soil, which is thus positive with relation to it, and currents are also manifested when two distinct plants are placed in the circuit of the rheometer." These results were confirmed by Becquerel (Comptes-Rendus, Nov. 4, 1850). He ascertained particularly the determination of electrical currents from the pith of the wood to the bark, which shows that the earth in the act of vegetation continually acquires an excess of positive electricity ; and the parenchyma of the bark and a part of the wood an excess of negative electricity, which is trans- mitted to the air by means of the vapor of exhaled water ; and the opposite electrical states of vege- tables and the earth give reason to think that, from the enormous vegetation in some parts of the globe, they must exert some influence on the electric phenomena of the atmosphere. Flashes of light have been seen to be emitted from many flowers, principally orange-colored flowers, soon after sunset on sultry days; this phenomenon was diligently studied by Zawadskl ; ANIMAL MAGNETISM, PSYCHIC FORCE. 205 he noticed that it occurred most frequently in the months of July and August, and he observed that the same flower discharged a number of flashes in succession.* From the bosom of the earth have been gathered, since the first appearance of man upon it, all the grains and other forms of vegetable nourishment that help to sustain his body and promote its phys- ical growth. The germs of the last year's growth of these numerous and varied forms of life were contained in the seeds of their generators of the preceding year, and thus it hath been, and thus it will continue to be in all the coming years. Whence cometh this vitality? And how is the peculiar and individual form of vitality secured to each of the myriad germs ? What was the origin of what has been happily designated as the " deter- minism " of these germs, the function which gave them their peculiar character ? That determinism is as much a creation of, or derivation from, the Omnipotent Power as is the soul or spiritual faculty of man. Is it the will of the plant ? Why should the infinitesimal germ perpetuate one form of life more than another, and this invariably, and with unfailing certainty through all ages ? Simply be- cause that determinism is a manifestation of the Will of God through fixed laws. Says St. Paul,f "And that which thou sowest, * Noad Text Book of Electricity, p. 13, 14, 15. t I. Corinthians, xv. 37, 38. 206 ANIMAL MAGNETISM, PSYCHIC FORCE. tliou sowest not that body that shall be, but bare grain, it may chance of wheat, or of some other grain : But God giveth it a body as it hath pleased Him, and to every seed its own body." " There are," says Lewes, " conditions and pre- conditions of experience as there are conditions and pre-conditions of plant life." Many persons who have experienced bodily suffering from wounds or from the loss of limbs have described, and in- sisted that they feel a return, a distinct reminder of their suffering on each anniversary of its occur- rence. An African traveller (Dr. Livingstone ?), was wounded by a lion in the interior of Africa. Annually on the return of the day on which he was wounded the pain of the wound was renewed. Many soldiers who have lost limbs in battle have insisted that on the return of the day when they were amputated they felt their presence with little or no suffering. Has the old Pythagorean doctrine of pre-existence a realistic foundation ? Are we subject to some persistent, subtle force that has a wave-length of twelve months' duration ? Are these indications or suggestions of those twi- light reminiscences of events and scenes of the long- ago and far-away that come back to us with a force and vividness that almost compel us to believe that they are the return, the resurrection of long-for- gotten realities, while at the same time we are cer- tain that they have never formed any part of our mortal experience? Are they Avave-motions of a ANIMAL MAGNETISM, PSYCHIC FORCE. 207 past existence which are to roll on through the endless hereafter? Are they connecting links between the mortal and immortal spirit, the sen- tiency that has lived through all the past and will live on through all the future ? These re-cognitions are beyond the reach of ex- periment, but there are few thoughtful persons with whom they have not been incidents of experience. The faculties of reminiscence and presentiment are among the most subtle and interesting phenomena of psychology. We can cultivate and strengthen the memory, and thereby increase our store of knowledge ; but no possible training can enable us to recall the vast number of scenes and events which have constituted the whole experience of our past lives. Yet the enduring and ever-sentient mental palimpsest may restore them to our cog- nizance when it is liberated from the fleshly taber- nacle. " Inasmuch as the idea of a movement is only an idea of a sensory impression," says Ferrier (Func- tions of the Brain, p. 389), " visual, tactile and others, which coincide with the particular move- ment, it seems quite possible that persons who have had a limb amputated may be able to picture a movement of the limb, just as a blind man may recall a scene when he can no longer see," then he quotes cases mentioned by Weir-Mitchell, of per- sons who have had an arm amputated and are able to write and apparently execute a movement of the 208 ANIMAL MAGNETISM, PSYCHIC FORCE. hand, and also to feel the pain of the amputation, the stronger the will the stronger the pain. Bvit these are yery different from the cases above re- ferred to. These last are wholly involuntary sen- sations impressed upon the mind or recalled to the memory entirely independent of the will, and ac-^ companied by a sense of pain that the will cannot inflict. We have a more or less acute sense of pain in our dreams, and so have the victims of catalepsy or delirium tremens ; but it is wholly involuntary. We know the marvellous activity, at times, of the brain when the body is asleep. We dream of exercising the five senses, of doing everything we are capable of doing when awake. And we dream of doing work in a few moments, of finishing tasks, of performing feats, mental and phj'sical, that would require days to accomplish during our waking hours. If the spirit is so wonderfully active when con- nected with the body, how intense must be that ac- tivity when it is disembodied, when it has shuffled off this mortal coil. Its intensified consciousness and power of perception must enable it to compre- hend, as it were, instantaneously a succession of acts and events which could only be the result of a comparatively long mortal experience occupying a considerable lapse of time. And this power of comprehension, this quickness of perception are to continue forever, constantly acquiring knowledge, constantly accumulating wisdom, constantly ap- ANIMAL MAGNETISM, PSYCHIC FORCE. 209 proaching DeitJ^ And this must be the supreme bliss of immortality, the perpetual inspiration of the " everlasting song." If the comprehension of the mortal spirit can be so intensely active, how intense, instantaneous, im- minent and effective must be the comprehension, the ever-consciousness, of God ! Dreams differ from presentiments in that they may present to the mind images and incidents both of the past and the future. In both dreams and presentiments the images, scenes and incideiits presented to the mind may be agreeable, joyous, delightful, or disagreeable, painful, torturing. In some cases the suffering is intense. It is doubtful whether the martyr at the stake suffers more agony bodily than does the victim of delirium tremens mentally. But far more subtle and occult is the faculty, if such it may be called, of presentiment. It is en- tirely beyond the possibility of ^re-experience. It is a presentment of something that lies in the future and is to be presented, made known to us. It is the psychologic analogue of inspiration, prophecy. Some years ago a writer in the Atlantic Monthly Magazine expressed himself as " curious to know whether the recurrence of the same dream or the same class of dreams for long periods is a common experience." I doubt not that it is a somewhat frequent, if not common, experience, and at that 14 210 ANIMAL MAGNETISM, PSYCHIC FOBCE. time I recorded, but did not publish, the following experience of my own : For nearly half a century, at intervals varying from six to twenty-four months and growing a little longer with the lapse of years, one remark- able dream has been impressed upon my mind with unusual force and distinctness. It is this : that I was endowed with an inherent force that enabled me to overcome the action of gravity and move through space in any direction but always in curves with a wave-like motion and with different veloci- ties. There was a constant, conscious and vigor- ous exercise of the will in controlling and direct- ing the motor-power, which seemed to have its origin in the brain and chest, and was as distinctly felt as what is called a thrill, differing from this only that it was continuous. The bodily investi- ture was a flowing robe of ample dimensions and graceful form. The arms were generally folded on the breast but the right arm sometimes waved in gestures to friends beneath. No particular use was made of the nether limbs except to pose them gracefully as the variation of the movements might require. During a number of the earliest of these visitations the predominant feeling was one of wonder and surprise that the subject of them had acquired such a novel and mysterious means of locomotion and with much pleasurable excitement he called attention to it. There seemed to be no particular end in view, no special purpose to be ANIMAL MAGNETISM, PSYCHIC FORCE. 211 accomplished. It was a condition of active, care- free enjoyment. It was not like flying, for the mechanism of wings was entirely wanting. The motion was produced and governed by an inherent energy, a latent, odyllic force that was perfectly controlled by the will. The sensation excited was like that which we may suppose is experienced by soaring birds as they traverse the air. For some years these visitations occurred within the walls of a room and in the presence of friends, the former growing larger in size and the latter increasing in number. But after a time there were changes. The first was this : The dreamer was with a large party of friends who had gone out in a beautiful June day to absorb the electric sunlight, to breathe the bracing ozonic air and to recreate with the birds, the flowers and the trees. The strange power became operative. The dreamer rose in the air and circled round in wide and wider curves — calm, serene, buoyant and happy in the exercise of this strange power ; regard- ing his friends who were looking up to him from below, with infinite interest and wishing that they might be similarly endowed and join him in his aerial flights. High and higher he soared, and fast and faster he swept around the widening hori- zons, returning again and again to his friends with increasing satisfaction and regard. The serene and pleasurable emotions with which he began his flights were soon changed to exuberant gladness, 212 ANIMAL MAGNETISM, PSYCHIC FORCE. exultant joy and profound gratitude for this mar- vellous gift. As is often the case in dreams, the matter was logically discussed with friends and it was settled that this was not a mere dream but a marvellous reality by which a mortal had been mi- raculously endowed. The vision at each return may have occupied ten minutes' time, but the dreamer seemed to have enjoyed some hours of great happiness. After having these remarkable visions at vari- ous intervals for more than forty years, the in- tervals growing longer with increasing age, an- other change occurred, the mode of motion changed. Instead of soaring upward the dreamer sat on a handsome hand-sled such as he used in his boy- hood. Seated on this with his feet on the front bar he seemed to be endowed with the same mar- vellous power with which he rose into the air and by the aid of which he propelled the sled with great velocity across ice or well-beaten snow-paths. There were no friends or spectators to witness these rides, and a singular circumstance was they did not terminate at any particular place, but both the dreamer and the sled seemed to vanish in the air. Now a word as to the origin of these visions. When a boy of twelve years, more than threescore and ten years ago, I went " to meeting " as all New England people did in those days, in the old- fashioned " meeting-house " with its two galleries with a high, arched ceiling between them and a ANIMAL MAGNETISM, PSYCHIC FOECE. 213 row of windows opening into each. On PLANETS. XXXIX. Number and Duration of Suns and Planets. We have noted the popular idea that the stars are infinite in number and duration. Treating of the stellar distances Father Secchi * says : " Im- mense as this space may seem it does not constitute the real limit of the creation, since our most pow- erful instruments fail to penetrate even all the galactic strata in all their profundity ; hence the firmament for us is unfathomable. Nevertheless it cannot be called infinite ; nothing composed of distinct and separate entities can be called infinite. It is said that the world ought to be infinite, in order that the work may be worthy of its infinite Creator. But if it were infinite and peopled to infinity with stars, the celestial vault ought to appear, in all its extent, as brilliant as the sun. Such is not the fact, and hence we must conclude that the stars are not infinite in number." This argument is conclusive. The conditions of our new Cosmography help us to comprehend, to a reasonable extent, what * Johnson's Cyclopedia, Art. " Universe." SUNS AND PLANETS. 271 has hitherto been considered incomprehensible. In that system all the celestial bodies are formed within the hyperboloids and the asymptoid which together constitute the omniverse. The divine, transcendent light proceeding from the centre of the asymptoid, enveloping and passing beyond the supernal spheres within it, will gradually diminish in intrinsic brightness as it recedes from that centre. In like manner, the solar rays, emanating from all the suns in all the hyperboloids and reflected from all planets, will also gradually fade out as they recede from the same centre until finally the whole omniverse will be enveloped in the utter darkness of outer space, thus presenting the appearance, from any point from which it could be visible, of a vast globe of mild radiance, flecked, as it were, with numerous shadows on a field totally dark. And although this omniverse is constantly increas- ing in size, we can comprehend its limits so far as to understand that it can never fill all space, and consequently that it can never contain an infinite number of celestial bodies. We have shown that the calorific rays of the sun after leaving its atmosphere are totally dark, and that they do not become luminous until they encounter some opaque or resisting medium by which they are reflected and refracted. This is conclusively proved by the fact that if the opaque body be of any considerable magnitude, like a planet, the side opposite the sun is totally dark, •272 SUNS AND PLANETS. and if the planet did not revolve on its axis, so that every part of its surface could be subjected, at short intervals, to the luminous rays, it would become intensely cold and perfectly desolate. On the contrary, if the hemisphere exposed to the direct rays of the sun were so exposed for any con- siderable period of time the heat concentrated upon it would be so intense that its waters, its moisture, would be entirely evaporated and all forms of life would perish. The moon is a sublime object-lesson that partially illustrates this condition of things. There is one supreme truth that we are com- pelled to recognize, that namely, that all life is the result of a, force. Another cardinal fact is that no force can be made manifest except through the in- strumentality of matter. Magnetism requires the lodestone, a metal, the air or a fluid or a gas to make its presence known. Electricity requires the proper machine, the in- ductive cylinders or coils, the amber, the wax, the clouds and moisture or a peculiar condition of the atmosphere for its development. The mental powers, the mind, the thought, the will, can only manifest themselves through brain and muscle and nerves. Equally true it is that there can be no life without the aid of heat and moisture ; also that there can be no life in the extremes of heat and cold, in other words, that there are degrees of temperature, calorific and frigorific, beyond which life cannot be sustained. SUNS AND PLANETS. 273 We know that there can be no vegetable life without light. In the mammoth cave of Kentucky and in all caves where total and constant darkness prevails, there is no least manifestation of vegetable or plant life. But light is not necessary for the development of animal life, as is abundantly demonstrated by the blind fish in the mammoth cave and the forms of life in the extreme depths of the ocean, as well as beneath the surface of the earth. Since matter and force are held to be indestruct- ible, and since force can be made manifest only through matter, it must follow that every organ- ism, animal, plant or vegetable, is a mechanical structure operated by some force. But these organisms are endowed with a force that enables them to perpetuate themselves indefinitely, each after its kind. Hence that force must be constant, pervasive, effective. As we have repeatedly noted, there is in nature but one force that invariably and perfectly fulfills these conditions, that is, the mag- netic force. Hence, if there be no error in our facts and no fault in our reasoning, the inexorable logic of the concept is that there can be no life without magnetism. And especially noticeable is the marvellous adaptability of this force to every organism, however immense or minute. The working of the brain of the little brown ant is as perfect and wonderful as that of man or the ele- phant, of the humming-bird as that of the condor. 18 274 CONCLUSION. XL. Conclusion. With the exception of some experiments designed to demonstrate the correctness of some of our most important propositions, but which we have not been able to secure the facilities for per- forming, our task is finished. Probably no student in astronomy or physics ever laid down his text- books without feeling that some of the most im- portant conclusions arrived at were not conclusive, that there was a hiatus, a something wanting that ought to be attained in order that our reason should be satisfied. He feels that he is very near the grand goal of truth, but has not quite reached it ; that, Moses like, he has had a charming view of the fair fields of the celestial Canaan, but still has not been permitted to wander through them nor to taste their grapes nor drink their wine. All the problems connected with our own solar system are so thoroughly elucidated that when we have mastered them we commence our explora- tions in the boundless areas of space with a cheer- ful hope and strong faith that the sublimest results will be soon attained. CONCLUSION. 21b We get into the Milky Way. It is an enchant- ing way to follow. New beauties and glories, aspects more and more sublime, are revealed at every step. But it returns into itself and we end where we began. We find that our stellar system is but a small part of this illuminated way, and that its primary — the sun — is only a brilliant point lost in a galaxy of other points far larger and more brilliant. Vast as is the extent of this galaxy, yet how small a portion of the firmament does it fill ! Con- cerning the Galactic Circle Sir John Herschel ^ writes : " It is to sidereal what the invariable eclip- tic is to planetary astronomy — a plane of ultimate reference, the ground plan of the sidereal system." It may be compared to the cross-section of an im- mense cylinder, populated with stars, in some parts so densely that the highest telescopic power of vision does not enable us to sound their utmost depths ; in other parts so sparsely that we look through them into " coal sac's " of impenetrable darkness. Looking north and south, so to speak, from the centre of this cylinder, we observe numerous groups of stellar matter twinkling and moving apparently in all directions, direct and retrograde, angular and oblique, with little or no system or order, like swarms of insects in a summer sky. From a careful review of the various facts and ' Outlines of Astronomy, p. 450. 276 CONCLUSION. conclusions which we have presented it seems cer- tain that the Galaxy is the grandest feature, the sublimest outgrowth of the stellar geography, the celestial cosmography;" that it forms a zone or group of stellar systems which occupies one of the hyperboloids ; the most perfect and the most brill- iant of these systems being nearest to the hyper- boloidal centre, while those which are less perfect, less complete, lie further from that centre; the nebulae and nubuculae lying still more remote, being the last and most minute forms of matter which occupy the border-land of the hyperboloidal space. The planets that are nearest their prima- ries are the oldest, and the north or positive pole of each stellar system points toward the grand, com- mon centre of them all. The centres and motions of individual solar sys- tems are well understood, but all effort to establish a common centre for all stellar systems has, thus far, failed. As the reader will have observed, our principal object has been to establish that centre and to show how all possible stellar systems with all possible forces and motions are inexorably con- nected with it. In developing our hypothesis we have, with an iteration and reiteration that may seem wearisome but that we have deemed essential, set forth, special- ized and emphEisized the properties and character- istics of one particular force, namely, magnetism. And in order to demonstrate more fully its mani- CONCLUSION. 277 fold virtues, offices and functions, we have ranged into the department of psychology. If the nature of this force in its normal and transcendental func- tions as herein unfolded and interpreted, shall, by the use of more perfect instruments and further observation be proved and accepted as true, then we have a reasonable solution of all psychological and physical problems. If it be asked why we have selected the asymp- toid, the hyperboloids and the hyperbola for the outlines of our celestial geography and the forms of space in which all matter can exist and all the natural and certain supernatural forces can be manifested, the reply is, because they are best adapted to accomplish the end proposed and that they possess peculiar properties and characteristics that are possible in no other forms. And while it is true that innumerable hyper- bolas can be cut from cones whose sides make any angle at their vertices from zero to 90°, yet it is also true that the hyperbola cut from what we have called a right angle cone is the only one that can fulfil the conditions of our hypothesis. The hyperboloid that revolves about its trans- verse axis generates a hyperboloid of two nappes. These are surfaces of double curvature ; they are conjugate, symmetrical, homogeneous, homologous and their equations are identical. If two conjugate hyperbolas are revolved about either axis they will generate a pair of conjugate hyperboloids of revo- 278 CONCLUSION. lution and their common asymptotes will generate a cone which separates the two. There are no other curves known that can possibly fulfil these conditions. How admirably and perfectly they are fitted for the construction of our new cosmography must be at once apparent. There are no hidden angles or corners connected with them. Perfectly, systematically, harmoniously they occupy all space. All forms of matter, all forms of energy, all pro- cesses of life and growth, all processes of decay and death, exist and are manifested within them. Finally we wish further to emphasize the fact that the supreme origin, centre, source, germ and root of the new System is Deity. All spirit, power, energy, force ; all life, matter, motion are the direct outcome of His will, the result of His laws. Ample material, ample ways and means are pro- vided for the execution of those laws, with endless space and time for their perpetual development. And thus the grand processes of nature are forever carried forward, and thus with ever-increasing reason, ever-growing emphasis, the firmament show- eth forth the handiwork and the heavens declare the glory of GoD. Such is the system which, with due humility but with an abiding faith in its substantial verity, is submitted for the consideration of investigators, and with some appropriate words from Grove we submit it to their criticism : " That the theoretical portions of this essay are open to objections I am CONCLUSION. 279 fully conscious. I cannot, however, but think that the fair way to test a theory is to compare it with other theories, and to see whether, upon the whole, the balance of probability is in its favor. Were a theory open to no objections it would cease to be a theory and become a law ; and were we not to theo- rize or to take generalizedviews of natural phenom- ena until those generalizations were sure and un- objectionable — in other words were laws — science would be lost in a complex mass of unconnected observations, which would probably never disen- tangle themselves." THE END. INDEX. A. Abbott, Mrs., 105 et seq. Aerial Music, 217. Age of Earth, \s,Z et seq. Age of the Stars, 164 et seq. Addison, 171, Note. Aqueous Vapor, 150, 76. Alpha Centauri, 195. Ampfere, 26. Ammonia, 184. Anaxagoras, 58. Andrews, 41. Angstrom, 55. Animal Magnetism, 197 et seq., 233etseq., 339. Animals, 239, 259. Answered Prayer, 183. Ants, 239 et seq., 246. Arago, 25. Aphides, 239. Attributes of God, 64. Asymptoid, 173, 178, 181, 185. Aurora, 96. Apostles, 227. B. Bacon, 11, 215. Bain, 121, 124. Barnard, President, 195, Note. Beginnings, 64, 72. Bancalari, 134. Bees, 239, et seq. Bernheim, 198. Birds, 239 et seq. Brain, no et seq., 199, 200, 208. Browne, Sir Thomas, 68. Burke, E., 81. Butterflies, 254 et seq. C. Capella, Light of, 196. Cat, 80, 234. Carbon, 136. Center of all Space, 192. Celestial Geography, 140 et seq., 169. Caterpillars, 250. Chemical Force, 27, 28, 34, 198. Chrysalid, 254. Cocoon, 254. Chapman, 130. Carnot, 25. Cicada, 58. Clark, Dr., 65. Conductors, 126. Coulomb, 73, 82. Cook, 136. Cosmography, The new, 22, 169. Color, 28, 78, 89, 35, 139. Comets, S4, 145. Condor, 82. Conarium, 116. Charcot, 198. Combustion, 152. Currents, Afferent and Ef- ferent, 126. Creation, 61, 62. Crookes, 40. D. Darwin, 29. Daniell, 27. Davy, Sir H., 49, 89. Diamonds, 137. Delirium Tremens, 197. Devotion, 197. Democritus, 58. Dewar, 107. Diastole and Sistole, 128. Dogs, 80, 234. Draper, J. W., 49. Dreams, 209 et seq. Dust of Time, 145. Descartes, 119. E. Eagle, 81, 83, 247. INDEX. Earth, Age of, 158 et seq. Effluence, 66, 68, 74, Electricity, 36, 89, 92, 199. Electricity of Plants, 203, 204. Emerson, R. W., 68. Electro-Chemic Force, 28. Epicurus, 59. Energy, 86, 91. Ether, 153, 187. Exhilarating Atmosphere, 185, 186. Evolution, 67, 187. Experiments in Magnetism, 43- F. Faraday, 22 et seq., 88, 90, 91, 134, 139. Fibres, iii, 115, 126, 80. Ferrier, no, 125-6, 131,207. Firefly, 18, 139. Flame, 150. Flowers, 204. Force, Disruptive, 94, 86, 91, 266. G. Gases, 132 et seq., 183. Gauss, 24. Gassiot, 37, 41. .Ganot, 49. Geisler's Tubes, 36. Gravity, 49, 53. Geography, Celestial, 140. Graining of Wood, 28, 30. Grey, 34. Grove, 19, 41, 49. Glow-worm, 182. Gould, 167. God, Attributes, 64. God, Dwelling Place, 179. God, 57, 68, 190, et seq. Gland, Pineal, 115 et seq. Glashier, 46. H. Harris, 94. Hawks, 81, 93. Hansteen, 167. Heart, 127 et seq., 247. Herschel, Sir Wm., 143, 166. Herschel, Sir John, 54. Heat, 88, 89,91. Heat, Radiant, 36. Hegel, 70, 71. Hertz, Experiments, 93, 102. Heredity, 202. Helmholtz, 18, 26, 63, 88, 267. Hair, 233 et seq. Hodge, 92. Horse, 83-4, 201. Hopkinson, 36, 40, 50. Holmes, Dr. O. W., 65, 66. Humble-bees, 249. Humboldt, 84, 167-8. Hydrogen, 76, 135. Hyperboloids, 173, 175. Hypnotism, 239 et seq. Huggins, Dr., 147, 155. I. Imago, 257. Instinct, 72, 259. Insects, 72, 239. J- James, Prof., 125. Jesus, 65, 68. Joule, 39. K. Kant, II, 42, 60, 67. Kirschoff, 55. Kolrauch, 55. L. Laughing Gas, 136. Laer, 80. Lambert, 141. Ladd, 121, 126. Langley, 139, 148. Larvae, 254. Leibnitz, 42, 51. Lambert, 141. Leucippus, 58. Light, 92, 97 et seq. Lepidoptera, 254 et seq. Light without Heat, 182. INDEX. Lucretius, 59. Lockyear, 148. Lodge, Dr., 187. Love, 201. Life Changes, 194. Lodestone, 47, 78-9, 150. Lotze, 69. Lost Articles Returned, 229 et seg. M. Magnetism, Compressible, 36, 38, 90. Magnetism, Animal, 105 et seq., 197. Magnetism, Transcendental, 57. 70- Magnetism, 24, 43, 47, 90, 198. Magnetism, 22 et seq. Magnets, Power of Large and Small, 262. Magnetic Poles, 168. Magnetic Men and Women, 200. Matter, 10, 64,68, 180 etseq. Matter, Transcendental, 180 et seq. Marcus Aurelius, 10. Martyrs, 201. Magnesphere, 193. Magellanic Clouds, I5S> 'S^- Milky Way, 60, 62, 273. Mental Conversatioii, 215. Mental Questions and An- swers, 215. Mind Reading, 215. Maxwell, 17, 91. Magendie, 121. " Mayer, 86, 87. Music, Piano and Harp, 218. Music, Piano Beating Time, 215. Motion, 19, 74, Rotary, 63, 64. Muscular Action, ig8 Miiller, 28. N. Nappes, 170, 174. Natural Forces, 267. Nebulie, 141, 143. Nebular Conglomeration, 63. Nerves, 124, 126, 128. Newton, Sir Isaac, 52, 67,73. Newcomb, Prof., 6, 141. Nitrogen, 135, 184, 185. Nordenskjold, 146. O. Ocular Spectrum, 235. Odors, 81. Oersted, 26. Omniverse, 193, 271. Ova, 254. Oxygen, 76, 80, 91, 137. P. Pain, 128. Perpetual Motion, 177, 189. Pineal Gland, 116 et seq. Physical and Psychic Force, 198. Pigeons, 241. Piano, Beating Time, 219. Place-sense of Animals, 240 et seq. Plants, 28, 78-9. Planchette, 221. Planetary Systems, 13. Planets and Spheres, Life in them, 193. Pliicker, 50. Poles, Magnetic, 168. Personal Experience, 233. Prayer Answered, 183. Procreation, 201. Prenatal Impressions, 202. Presentiment, 209. Preexperience, 207, 209. Primordial Matter, 65. Quam, 115, 121. R. Radiant Heat, 40, 181. INDEX. Radiant Light, 184. Radiant Matter, 40, 186. Raven, 81. Ribot, 198. Reminiscence, 197. Reappearance of Lost Arti- cles, 229 et seq. Reason, 72, 81. Rheotem. Ross, Sir James, 167. Rotary Motion, 63-4. S. Sachs, 32. Saviour, 68. Secchi, Father, 142, 164, 173, 194, 270. Selective Faculty, 259. Sinews, 124. Sirius, Light of, 195. Schelling, 149. Solar Light, 55. Seeds, 203, 205. Soul, 112. Southern Hemisphere, 166 et seq. Smell, Sense of, 80, 84, 240. Spectrum of Gas Flame, 149 et seq. Spiritual Transformations, 194. Spiritual Force, 262. Semi-spiritual Substance, 64. Spirit, 71, 187, 223, 262. Space, Centre of all, 192. Space, Extra Stellar, 73, 189. Spiders, 249, et seq. Solar Systems, 188. Space, 9, 13, 178. Spiritism, 187, Systematic Investigation, 215. Subtle Force, 229. Shell Life, 258. Stellar Distances, 270. Stellar Systems, 13, 72, 140 et seq., 189. Stars, 60, 156-7, Star-dust, 173. 176. Spheres, Celestial, Life in them, 194. Swedenborg, 59, 67, 167. Sun, 161. T. Telepathy, 183. Tesla, 182. Tait, 26. Time, 9. Thomson, Sir William, 18, 36. Thalen, 55. Thrills, 233, 236. Thought Transference, 215. Tissues, 200. Touch, Sense of, 83-4. Trance, Speaking and Writ- ing, 215. Tides, 54. Trees, 29. U. Universal Force, 36. Universe, 70, 30, 32. Universes, 193. V. Vacua, 36 et seq., 53. Vision, 23s, 239, 240, 247. W. Water, 138. Wartman, 203. Winchell, Prof. Alexander, 63, 145, 147. Winslow, 114. World Systems, 57, 61, 74. World-stuff, 64, 71, 72. Wright, T. F., 59. Y. Young, Dr. Thomas, 49. Z. Zantedeshi, 134.