U THE LIBRARY OF THE UNIVERSITY OF CALIFORNIA PRESENTED BY PROF. CHARLES A. KOFOID AND MRS. PRUDENCE W. KOFOID .2.2 5~ THE HUMAN BODY. THE HUMAN BODY CONNEXION WITH MAN, ILLUSTRATED BY THE PRINCIPAL ORGANS. JAMES JOHN GARTH WILKINSON, " HE cried with a loud voice, Lazarus, come forth. And he that was dead came forth, bound hand and foot with grave-clothes : and his face was bound about with a napkin. Jesus saith unto them, Loose him, and let him go." LONDON: CHAPMAN AND HALL, 193, PICCADILLY. 1851. > LONDON: WALTON & MITCHELL, PRINTERS, WARUOUR STREET. fc- CONTENTS. Page Dedication vii Preface ix The Human Brain 1 The Human Lungs 74 Assimilation and its Organs 136 The Human Heart 183 The Human Skin 286 The Human Form 336 Health 404 Appendix 485 To Henry James, 22sq., of New York. MY DEAR JAMES, THIS .book is indebted to you for its appearance ; for without you, it would neither have been conceived, nor executed. I dedicate it to you as a feeble tribute of friendship and gratitude that would gladly seek a better mode of expressing themselves. It may remind you of happy hours that we have spent together, and seem to continue some of the tones of our long correspondence. Valeat quantum ! It could not lay its head upon the shelf without a last thought of affection directed to its foster parent. That prosperity may live with you and yours, and your great Commonwealth, is the prayer of, My dear James, Your faithful friend, JAMES JOHN GARTH WILKINSON. St. John's Wood, London, May 25, 1851. PREFACE. AT the end of a work, an author writes the preface or beginning, unable to neglect the law which urges that extremes shall meet. Prefaces need no apology, and a reader intending to study a book, does not do himself justice unless he peruses them. A preface gives the author's last conception of his aim, the most compre- hensive eye with which he sees it. And unless the reader looks through this eye, he cannot enter into the author's mind. The study of a book is the temporary putting on of the faculties and insights of another ; and the sooner the assumption takes place, the sooner the reader begins to read aright. To assist this we have a few remarks to make that may prepare in some measure for the following pages. We labor under difficulty in procuring the right audi- ence for the present discourse. The subject of which it treats has been so much narrowed to a class, that on the one hand that class, the medical profession, claims it as an exclusive knowledge ; and on the other hand, the public mind is in abeyance with regard to it, and looks upon it as b PREFACE. a property for ever alienated from its possession. We therefore run the risk of finding no readers, unless we can persuade the public that the knowledge of the human body belongs to every man, woman and child, and has no more necessary connexion with physic, than with art, industry, philosophy, divinity, or any of the other occupations that we do in the body, and by the body. To write a treatise on the subject through which this persuasion shall run with vigorous consequences, has been a leading motive with us in the present work. Persons for the most part have no idea that the sciences belong to the great world in the first place, and that the classes who are actively cultivating them, are but little bands of pioneers that are contending with difficulties at the out-posts, and slowly winning a new magnitude of knowledge, which as soon as it is settled, belongs afresh to the large country of popular common sense. On the con- trary, they allow each party of settlers to hoist the flag of a petty kingdom of their own, without insisting, as ought to be done, that the adventurers shall at once become the colonies of the mother state. Thus it is that professors of all kinds have kidnapped the sciences, and the people fear to take so much as a walk under the walls of these bris- tling strongholds. But scientific feudalism is evidently about to pass away. This desirable result will be accomplished by the growth of large towns, that is to say, popular doctrines, of the sciences, which will belong to the broad industry and in- sights of mankind, and will not contest, but swallow up, PREFACE. XI the castles of the present chiefs, and reverse the feodal direction of duties and fines. Already we have seen the process going on in the history of civilization, and we are about to witness the same thing in the progress of science and of thought. It may take place somewhat as follows. The masters of science will pursue their own way, warm in their little senates, and cheered by their subjacent schools ; satisfied with perfectionating the chairs into which they have been inducted. They will gather useful facts, and more and more comprehensive formulas, and appealing to rarer and rarer qualities in their scholars, be most out of sight when they are most at home, until at length, by extremity of cleverness, they will become invisible to all but adepts. Lords of the last ether of things, they will only exist as influences, and not as appreciable substances. In the meantime the people, happily unconscious, will listen to flesh and blood, which seems to talk to them about them- selves. Abstractions will have sailed away to the flying island of the professors, who will exert a strong attraction upon the whole wealth of the world's inanitions. A clear stage and sward of common sense will then be at the popular disposal, and the problem of universal education may be conceived upon new grounds. The safeguard of the people will be this, that when the learned have done their best, it is no matter to them; their hearts will be unseduced, and their brows unterrified, by the lordliest and most captivating formulas. One or two plain Johnsonian stampings on the ground, will be sufficient to convince b 2 Xll PREFACE. them that their ignorance and carelessness on these scores is most invulnerable and sublime. But here comes a knot claiming Deus intersit. Nor can the difficulties of man be without a response from the mercy-seat: new thoughts and new persons will come speeding to make new things possible. Already we see that the whole of the sciences may reappear on the popular side. The waning moon of the schools gives place to the full-orbed Dian of a more generous light. All the common truths that have been neglected since the foundation of philosophy ; the stones that the builders have rejected ; that great orthodoxy that has bided its time while ages of conceit were cuffing against its serene face, will rise out of land and sea, and out of the graves of the hearts of many generations, and come in hosts such as no man can number to the people in their hour of need. The doctrine of final causes, which is God in the sciences, and which atheism hates, will ramble over the pleasant fields, and teach them to childhood as a book j and out of its mouth will come lessons of order and fitness, which will make the world as familiar as a father's and a mother's house. We find it to be a law, when a branch of knowledge has been cultivated for ages, and still remains inaccessible to the world at large, that its principles are not high or broad enough, and that something radically deeper is demanded. If it does not interest universal man, that is sufficient to prove the point. This law is illustrated by many things, and particularly by the history of the arts. Once upon a time all books were perpetuated by copying PREFACE. Xlll with the hand ; whoever would possess a volume, must undergo the toil of transcribing it, or pay the price of that toil to another. This was the narrowness of the circle of the learned. The perfection of the copyist's art was soon attained, but the utmost rapidity and cheapness in this mode of multiplying books, could not render them to the mass of the public. How was the seeming impossibility to be surmounted? By some meaner process, which should deteriorate the appearance of books to a degree commen- surate with the humble fortunes of the poor ; so that if the rich man's Bible cost him 30, a copy of but one sixtieth the excellence should be produced for one sixtieth the sum ? Far from it indeed ! The means of making the poor man a proprietor of books, lay in a glorious new art that clothed all literature in a bodily frame of surpassing beauty and usefulness, and placed it in the hands of the common people in a form that before the invention of print- ing the greatest kings would have envied ; and which even Virgil or Cicero would not have disdained as the material pedestal of their immortality. This art, simpler and more universal than writing, was not lower but immeasurably higher than its predecessor, whose services were for the noble and the learned. Another illustration : The means of locomotion or mate- rial progress, what is their history ? Up to a recent date the coaches and high-roads furnished nearly the only mode of land travelling. Journeys by them were restricted to a small portion of the community. The more the coaches were perfected, and the better horsed, the more expensive XIV PREFACE. and select they became. How shall we popularize travel- ling? By a viler expedient, of canals, carts, and the like ? This too existed, but it was used merely for neces- sity, and did not attract, or tend to make all men into travellers. To effect the latter result, an invention grander and cheaper than had then traversed space was required. To move the rich needed only a four-horse coach running in an agony of ten miles an hour ; but to move the poor required cars before which those of the triumphing Csesars must pale their ineffectual competition. Thus though the problem was the enfranchisement of the meaner classes from the fetters of pedestrianism, yet the only solution of it lay in the increased convenience of all ranks from the noble to the peasant, and not in the degradation but the elevation of the locomotive art. And so it must be, as we apprehend, with human know- ledge ; the arts of education that will summon the people to learn, are toto ccelo different from, and greater than, those which have been sufficient for the schools. A petty magnet is sufficient to take up a few hundreds of isolated persons ; but when the nations are to be attracted, there is nothing less than the earth that will draw their feet. Here we touch the gist of the matter ; for it is in fact powers of attraction in knowledge that are demanded for the new education. There are three heads to this, which form one. In the first place, attractive knowledge gains the learner and keeps him. In the second place, it enlarges his genius, and out of that, his memory; whereas dry knowledge cultivates his memory at the expense of his PREFACE. XV mind. In the third place, (or in the first again,) such knowledge is coherent with itself, and tends to be all known whenever a part of it is known, giving the learner a constant sensation that he is developing it for himself, which lets him into the legitimate delight of mental power. But only that is attractive which is allied to our busi- ness and bosoms, and seems to have a life that understands our life, and vice versa. On the other hand, repulsion is the effect of death and unkindness. Hence, to limit our- selves now to the human body, no popular science of it can exist, but one that fills it with at least as much life as its pupils feel throbbing in their bodies. Knowledge draws them never until they are forced to cry out : " Ah ! I see myself more than myself in that wonderful glass 1" If to their curiosity about themselves any dead body near them mutters " germ-cells,"* they feel dusty, degraded, and abhorrent. They must be rendered better, bigger and worthier for every look they give, or their eyes will be averted from their books. Knowledge, however, is progressive, or its cars are of different sizes. It will only be by slow degrees that we can accommodate the world with seats in the trains of science. New inventions will be requisite for each new * The intellectual correspondence of the doctrine of cell-germs and convertibility of forces, is found in the doctrine of subjectivity, which implies in the first place that you are shut into yourself ; and in the second, that whatever comes to you, puts on your state, and is nothing but your own walls vibrating. This is the philosophical, as the other view is the physical, jail. The way out of it is by walking through the walls, which look granite, but are impudent mist. XVI PREFACE. population that is to be drawn. In the meantime it is good to see this, and to place as an end the education of the universal people, because that education will require the largest and noblest principles of common sense. To educate a Mechanic's Institute demands far greater princi- ples and more prolific love, than to do the like for a Royal Society : you have to bring things down and to incarnate them, to connect them with material and substantial uses, and to give them both souls and bodies, for the former ; whereas in teaching them to the learned, you escape into laws and formulas, and shirk the problem of realizing the subject to the audience, by insisting that it is the fault of the audience where it does not comprehend. This is ac- cording to a vice common in schools, of neglecting the dullards, and petting the clever pupils. On the other hand, public education is for the publicans and sinners of the brain, the stupid and the quick alike, both of whom are constructed for the largeness of a common understanding. But if to inform the Mechanics' Institutions be already so much vaster a task than to propagate learning to the learned (who are the people that can take it easiest), what a much ampler knowledge still is required for the educa- tions of clowns and sempstresses, and those great classes of society who have almost no organs but hearts and hands. Knowledge must be like music and nursery songs before these clodhoppers can dance to it. We have attempted, but most imperfectly, to begin a discoursing on the human body which goes somewhat in the direction of this great outlying population ; being con- PREFACE. XV11 vinced that to win them to the truths of the creation is a mission enjoined upon the future time. In doing this, we have felt that there was no condescension implied, but the strain of all our faculties into the most universal sphere. And although, by the law of things, there is more to be done than when we commenced to do, yet shall we be satisfied if we have struck a single cord of that instrument whose earliest notes portend to us the grand Hallelujah choruses and symphonies that are to be. The matter of universal education may well claim the serious regard of all classes of society. It is indeed a panacea, though not as it is at present conceived. To teach superior artisans and savans a few sciences, and by all means to stimulate the love of property, may keep things together by giving a large army of " specials " an interest in what is called order ; but the great mass is not touched by such motives or informations. The facts prove that it cannot learn these lessons, or care for these objects ; because, like the old coaches, they are not big enough to carry it on its voyage through time. There is nothing for it but a new method and kind of knowledge ; an Or- pheus who can thrill into dance not the present nimble figurantes, who can dance to any tune, but stocks, stones, birds, beasts, and fishes, who had no fantasy in them before. That method must take the best common sense of all these people, and shew them that just that, when carried to its highest stages, is the very truth of all the arts and sciences. As soon as this can be done, all stories will move one degree higher ; the kitchens will be parlors, b 2 XV111 PREFACE. and a new drawing room will flower out of every house for the great reception days. The order which will then conserve all things, will not be solely that of the police- man, but it will be like the order of creation, or like that of the notes in a good harmony, where each keeps the rest to their posts. We have selected the human body to make a trial of the above method, on account of its central importance and significance, and because it is already the theatre of our common sense : nevertheless, any other object of science might have been chosen, and with the same results. For wherever we go, we find that common sense comes first ; and when the subject is completed, again comes last. First glances are always charged with it, in a more or less latent form : the business of investigation is simply to eliminate it as pure as possible from its accidents. In no science does the present state of knowledge ap- pear so manifestly as in physiology : in none is the hand- writing on the wall so plain. Great is the feast of profes- sors here ; but Mene, Mene, Tekel, Upharsin, is brighter than their chandeliers. Chemistry and cell-germs are the walls on which the lightning writes. Well may we call them walls ; for it is impossible to conceive anything more limitaneous : prison stares us in the face while we are in that company. Who of woman born can go further than to distil himself into gas, or to pound himself into cells ? Annihilation, which God forbids, must be the next stage of smallness. These respective doctrines are the last solid points which are possible, and by nature itself there is no PREFACE. XIX passage beyond them. After these, the scientific men themselves must evanesce ; for already their watchword to each other is, " Hail, Bubble Brother ! Hail, Nucleated Cell!" Before it came to this chaos, there was everything to shew that physiology, studied with the present objects, had completed its rule. Its great outlines had long been traced, and its general problems had ceased to occupy attention. It had become more and more complicated and microscopic, and leaving the human frame, it was gradually slipping down into the brute creation. Meanwhile the leading questions that a child would ask respecting struc- ture or function, were forgotten, or postponed indefinitely. The connexion of the science with our living sympathies, which was never strong, had ceased altogether. The function of its hierophants, to enlighten the ignorant, had become impracticable, for want of vitality and attractive- ness in their knowledge. These were signs that its king- dom was moved from the midst of it, and was about to be given to another. Be it observed, however, that we do not blame the existing sciences for what they are not ; our task lies only in recording that they have had their three sufficient warnings. Their state is like that of us all birth, growth, and decline ; and like us in due time they are to be supplanted by their sons, when the world's busi- ness requires further workmen. For the sciences become immortal in their generations ; solid in the general subor- dination of the past to the present ; and living, in the per- petual aspiration and appeal from the present to the future. XX PREFACE. I know that even the chemistry is all right in its own way ; and I cannot help admiring the thoroughness of the Liebigs, who after having analyzed the rest of things, put men and women into the retorts, and with pen and ink ready, write down so much dirty water and foetid oil, and so many ounces of scientific dust, as the future state which comes over. This is positive fact, if not for the physiolo- gists, at least for the candle makers. I ask nothing more than that it shall be in its place. And who can quarrel with the microscopists ? When Leeuwenhoek, in the seventeenth century, determined that everything that was too little to be seen, was his em- pire, he really laid his hands upon the whole of things, in a certain small sense. And whenever our great duties and rights are tolerably well fulfilled, little things will be intellectually and morally magnified into a new importance. Ultimate structure will then coincide with primary struc- ture. But until then, the microscope is before its time in physiology, and must wait upon lower callings. While the reasons of minute forms are so totally unseen, it is their prettiness chiefly, their scenic charm and glow, which is of use to human eyes. I have often wondered why, in the difficulties of the artists who make patterns, they have not resorted to Mr. Queckett and the Microscopical Society, for the exquisite traces which they can shew. Solomon was not arrayed like the lilies of the field. The Manches- ter manufacturers would do well to dress out the ladies of this generation in the spoils of the colors and forms of these brilliant creatures. There would be something new as well PREFACE. XX as charming in rhinoceros -kidney mousseline-de-laines ; in shawls according to the inner splendors of the burnished beetle's wing in veils worked to represent the many- eyedness of the blue -bottle; or in a mantilla on the back of a professor's wife glorious with mimic cell-germs. Here would be a mission for the microscope, and a final cause for the corporation which represents it, which would then take rank as a sub-committee of Drapers' Hall. It would be good to be small, when it enabled you to dive into little cracks and holes whence real beauty could be fetched. And by gaining this practical object, of ornamenting out- sides, the Lilliputian people would cease to infest phy- siology, and leave Gulliver's inside alone. Such, we believe in our hearts, would be the art cor- responding to the present state of this science. For we notice that every little discovery is so straitly held and claimed by the finder, and the label of " My Truth " is so decisively pinned to each fresh zig-zag of cell work as though the man had not only seen that special quirk, but made it that we cannot help thinking that Show is the fire which is heaving under this uneasy stratum of the Small Seers. Our proposition, which we hope to see adopted long before the next " World's Exhibition " in London, exactly jumps with this passion for display, but by carrying it over to our ladies renders it both beautiful and harmless. Let " my " family wear the blazon of " my truth " as they walk before me to church. There is one part of our work which we think it right XX11 PREFACE. to mention, but for which we do not apologize. Through- out the following pages, we have taken for granted the Divinity of Christ and the truth of Christianity, and with this tacit assumption we have labored to connect the whole of our general views. There is no escape from some step of this kind : the atheist takes for granted his atheism, and works in its darkness ; he sees no God because he looks from none, and for none : and in every sect, that most comprehensive aspect of nature which is its depen- dence upon Deity, colors and shapes the whole of the sciences which that sect elicits. We would undertake in many instances to assign to particular Christian deno- minations, the scientific views which have been contributed by each, and to pin their insights into matter, space, time and history to their prayer-books and hymn-books. In short, science is always impregnated with either religious, or irreligious life. By virtue of this it is, that the coldest treatises end in some kind of sermons, and the nodus of every theory of the world is a corresponding god. In presence of this necessity, it occurred to us long ago, to assume openly our own creed as the supreme key of knowledge to which we could arrive, and to peril our faith so far as our readers are concerned upon the success of the experiment. And here we seemed to be truly scientific according to the common rule. For after some facts are found, the method of science consists in assuming a hypo- thesis to account for them ; and if that hypothesis serves the purpose, it passes over to a theory, and in time is received as the truth of the case. And though the hypo- PREFACE. XX111 thesis might seem unlikely, and be liable to many ugly reasonings against it, yet if it answered to the facts, it was justified, and all ratiocinations to the contrary died. By pursuing this method, we have convinced ourselves, that our Lord is written down in the pages of nature her- self as the truth of her whole creation. This is the method of tolerance. For while we work from this point of view, it is our own fault if we meddle with others who are trying to settle the same problem from different grounds. There is a prize to be won by the religions of the earth ; they are so many accounts of God : the order and laws of creation and spirit are the check which adopts, or rejects, these accounts at some certain point. The book is closed, and who shall open the seals and read it ? The same is the method of scientific persistence and unity of aim. For no one lifetime can be expected to measure the adjustments of the problem. To all argumentation we can scientifically reply, that we have not yet concluded our experiments. In so great a cause, ages of ages are allowable times for operation. Religions are a vast social matter ; no man has a right to declare the trial done, until the success of creation-reading warrants him. Thus we gain indefinite time against the sceptics, allowing them also their own time for doubting. If God permits them leisure, why should we feel bound to hurry them ? But then they must be equally patient with us. The same also is the justification of causes and missions. For these are to action what theories and hypotheses are XXIV PREFACE. to science. And every man is not only justified, -but bound, to plead his religion ; and if it contains that force, to send it forth over the world. He is trying his scientific problem on the practical side. The same again is a criticism upon criticism. For in a working science, we do not desire to know what a priori probabilities or improbabilities may attach to our hypo- thesis, excepting in so far as they determine our choice of it at first ; after this we have simply to apply it, and to test it in all convenient ways. There is only one objection which not only slays but buries principles ; which is, that they break down in fair practice, and are disowned by the nature of things : other objections are impertinences, which may, or may not, be true. For this reason, the modern criticisms upon Scripture have nothing to do with the question : whether miracles are likely or unlikely, possible or impossible ; whether God would have dictated a Book which contradicts itself; whether the attribution of human passions to Deity is consistent ; whether Christ as God could have died upon the cross ; whether the Gospels were written in the first century or the third ; whether Christen- dom be not a wide mistake of which Chapmandom is the correction : all these are matters which we postpone, from our extreme inability to do two things at once. If it be found that Christianity is the theory of the world ; that the Divine Man is Lord of the sciences ; that the biblical Revelation is the truth of truths, which opens a Shekinah of light to the later races more than to the first ; that the Gospel alone can rule the nations with a rod of PKEFACE. XXV iron j then the finding of this from age to age will suffi- ciently conserve the text against the stings of the Straus- sian school. The more so, because if their principle of criticism first, and faith afterwards, were admitted, the result must be atheistic confusion. For if, on account of what contradicts our notions of convenience in Scripture, the Bible be untrue, then for the same reason, nature, being full of contradictory essences, tigers and lambs, men and vermin, is no work of God ; but a single flea is enough to trip over the nature-textuary into the abysses of denial. The armour of these greatest truths is, however, not so ill-jointed as to let in such lances. It demands that the critic shall try his criticism by not only accounting for, but ruling the world. If he cannot do these two things, his rack of texts proves as good as nothing. This method also is a defence against books. For were we not entitled, as children of science, to take for granted our Revelation, and to make our lives, and if need be, our eternity, into its trial, we should be bound on a quest over the whole universe, to listen to what everybody said. The sandals of this terrible flight would soon reverse us, and take the place of our heads. By nature however we make up our minds very soon, malgre the possibility of meeting some one who shall one day upset us : there is a quick hour when every man burns his Alexandrian Library as heartily as the Kalif Omar. And thus we limit ourselves to a particular walk, and like cobblers, " stick to our last." The atheists do this just as much as other people; the vacancy of the air of their studies, suffices them for the XXVI PREFACE. induction that " God is nowhere." Why should not the Christian professionally accept this necessity of not roam- ing through all books, but work from the Best to his vocation ? We were forced upon this track of thought, by noticing that the Rationalists had got to nothing as punctually as if nothing had been their aim ; and that their inductions were of no consequence, supposing them to be true ; which however concluded against their truth. We found also that they were like the fellow who claimed Virgil's " Sic vos non vcibis " to himself, but could not complete the line which the great poet had left half finished. In the whole company of them, and in all their promise of offspring, there was not a spark of revelation ; though to hear them talk one might have imagined, that they knew the way of making myths, and that writing bibles was their forte. For these and a thousand other reasons, we left them on one side, and took another tack. Here also we quitted those two little parties who think that they are the only two, namely, the contenders for the principle of authority on the one side, and for that of reasoning on the other ; and taking some gold and silver from both, we determined to choose the party of science, as that to which the Lord of science was about to commit the kingdoms of the earth. And as eyes are the great faculties of sciences, we determined thenceforth to pray for eyes above all other powers of that kind ; that we might not have to appeal to either of those effete parties, autho- rity, or criticism, but might terminate some of our per- PREFACE. XXV11 plexities by sight. The more we have proceeded, the more convinced we are, that this ground of science is the coming earth of a new and more glorious time, and that He whose feet burned like fine brass in a furnace, will pour His love through it, and give to it to conquer and to heal. At the same time we have no faith in the present state of the sciences, excepting as the ministers of some industrial arts. For educational purposes they are almost worthless, because they terminate the first plain questions with un- satisfactory replies. For spiritual purposes they are equally negative. And hence we regard them, with all their seemingly large retinue of facts and colleges, as only pro- visional occupants of the mind. Indeed they are in so rapid a flux, that it is hard to say what they are from one year to another. But when science becomes Christian, we may have some natural theology upon the face of the earth. And here again our views depart from those of many good men. If Christ be the God of the Christian, then natural Christ- ology is the only theology of this kind which is possible in a Christian state. In Mahommedan countries, natural theology, or the culmination of the science of nature in Deism, or what is the same thing, Theism, must be per- mitted as an inevitable growth ; but this is plainly not the case where Christ is worshipped. We feel it necessary to insist upon this, because even those who accept Christ's Godhead, strangely pass Him by when they are attempting to trace up all nature to their God. The consequence is, that it is only the truths of mere development and creation XXV111 PREFACE. that occur in the sciences, and not those of love and re- demption j whence moral and spiritual life is banished from the book of nature. The church must look to this ; and bishops and clergy whose place it is to give prizes for natural theology, must consider whether as at present taught, it is not an active branch of Deism. We venture to express a hope, that in the distribution of laurels to the successful candidates for the great Glasgow prize, this Christian exigency will be remembered ; and the award-be made not to those treatises that so easily trace the paral- lelism between certain views of science and the God of fancy, but between the integral sciences themselves and the God of Revelation. If the judges upon the important occasion referred to, adopt the standard which we suggest, the end of natural theology will be altered, and the effects upon science may be of the most considerable kind. At present, natural theology has undertaken the impossible task of " finding out God," Who can only be found in so far as He has been pleased to reveal Himself. The Deity thus elicited, or as Fichte rightly says, " constructed," is a scientific abstrac- tion answering to the concrete figure of the Vulcan of the Greeks, that is to say, a universal Smith. The course of the natural theologians is as follows : they see in the human body and the world the principles and applications of the arts in a surpassing degree : the skull displays the virtues of the arch, and the hand embodies wondrous pulleys and levers ; whence they infer that God is ac- quainted with mechanics. And from all the other parts of PREFACE. XXIX man, the clay patronizes the Potter in the same way, and the Deity which arises out of the whole is at best an infi- nite handicraftsman. This is anthropomorphism, or the distillation of God out of our own limits and thoughts, our own space and time. The Paleys, Broughams, and the authors of the Bridgwater Treatises, seem to have been satisfied with this vulgarity of heathenism. We hold, on the other hand, that a scientific natural theology is different, and that it accepts the living Lord of Revelation, and consists in tracing the correspondency of His revealed attributes in the sciences ; being in effect the synthesis of the knowledge of the real God with the sciences of real nature. In this case it leads the waters of life into science, and is the most indispensable of all the single studies of the natural world. As for the evidences which it affords of God's existence, these do not consist in demonstrations of artistry and carpentry, but in symbols of spirit and love pervading creation, and reconstructing the natural mind of man upon spiritual models. The proof that nature is full of Deity, lies in its power, when rightly seen, to soften the heart and moisten the eyes of the unbe- lieving world, and without a controversy to send the scoffer to his knees. In that affecting moment, genius and devo- tion are twin-born. But no demonstration of Vulcan, even though approved by bishops and clergy, has any effect of this kind. Many of the thoughts in the present work may seem new : yet the larger portion of them is not our own. We XXX PREFACE. believe implicitly that " the stone which the builders re- jected " will be "the head of the corner." It has become therefore a scientific canon with us, to look out for this stone in all quarters. Hence we have been led to many discredited sources of information ; and if borrowing good things be plagiarism, we are guilty of it to the utmost of our powers. Wherever it can be shewn that we are not original, so much the better : we desire for ourselves and others to enter the circle of the great dependence of things, secure that there is no independence of heart or mind upon any other terms. And now our task is done. The style of it differs some- what from the common, because our creed differs ; and we disbelieve for the most part in what is called the severity, strictness and dryness of science. We hold that nature is the drapery of spirit, and that analogy is the cement of things, and the high-road of influences. We are therefore afraid of nothing, however fanciful, on this ground : nature is more fanciful than any of her children. Besides which, we have found practically that metaphor is a sword of the spirit, and that whenever a great truth is fixed, it is by some happy metaphor that it is willing to inhabit for a time: and again, that whenever a long controversy is ended, it is by one of the parties getting hand on a meta- phor whose blade burns with the runes of truth. For these reasons we dare speak in parables. Yet is it fearful to disagree so widely with our friends and fellows. We love them, but crave space to breathe PREFACE. XXXI where they are not. Difference makes the world larger ; and without a quarrel with the old modes, we have emi- grated to another country, where we hope for peace; particularly as we trust not again to come forth with the pen. THE HUMAN BODY. CHAPTER I. THE HUMAN BRAIN. OUR first conception of the human body is that of a living subject ; life is the dim personality which animates it, as well as the atmosphere in which it moves and breathes. Upon this lowest floor of our existence there rises an edi- fice of many stories ; upon simple life, which is the vege- table in the animal, there is founded a life of life, which is mind. The mind is many-chambered and many-storied. Life dwells in the body, but the mind or superior life inhabits the head, or according to anatomy, the brain. The brain then is presumably the body of the mind, and what- ever is wisdom or faculty in the mind, is furniture or ma- chinery answering to faculty, in the brain. And as the mind is the man, the brain is his representative, or the man in another degree. This is the solid voice of the head, or the most general truth of consciousness, which lies in the head, and speaks from the head. Arid our plan is, to accept as oracles these gifts of our instinctive sense : to regard them as the ele- ments of knowledge : and not to question until we have accepted them. It is then the consciousness or instinctive natural history of the organs, from which we commence : B 2 THE HUMAN BRAIN. not what man says of the. brain, but what the brain says of itself in man. Thus we shall first endeavor to gain the impressions which the organ under discussion makes upon the mind, or begin from natural experience. We shall then briefly consider its anatomy, or pass to scientific ex- perience. Next we shall attempt to give life to the part by considering it in motion and emotion. Lastly we shall pursue the analogical method, where it is not too difficult ; and assuming that every principle runs quite through the world, we shall endeavor to shew that each organ has kindred in every sphere ; and thus out of the consanguinity of things we shall try to deduce the fact of a native coher- ence in the world, whose links are a real logic, and which when transplanted into knowledge will spontaneously con- stitute the association and unity of the sciences. But this will be better understood in the sequel. We now proceed to the facts of the present case, to visit the mind which we have found, in its proper mansion, the brain. At the outset we would guard the general reader against an error which requires to be removed. It is commonly supposed, because anatomy has been cultivated by a class, that it is difficult to learn. On the contrary, any one with a common understanding, and of course industry and atten- tion, may possess himself of the leading parts of anatomy. Ladies may learn them as well and as harmlessly as the other sex. Plates moreover are satisfactory means of ac- quiring a view of the human frame which is enough for public education; for although insufficient for the sur- geon, the knowledge derived from plates will enable the public to enter upon the study of organization, both with cleaner hands and clearer heads than if they busied them- selves with the ever-varying detail of dissections. It has indeed been usual with practical anatomists to decry ana- DESCRIPTION. 3 tomical plates ; and yet they are a degree better and truer than the dead body; for they contain the mind of the artist, and are superior to any single subject, being not mere copies, but carefully collected from many subjects ; and as they are generalizations, they are adapted to be ve- hicles of general knowledge.* They may be regarded as translations of the body, available for those who cannot read the original. And indeed those who can only see and not touch anatomy, as they have all power of destruction removed, are favorably situated for constructive truths, for the theories of bodily motion, proportion and gravita- tion ; just as the astronomers are indebted to the distance of their view, and the superficiality of their objects. Good science then, we repeat, will not refuse to attend upon anatomical plates, though not the science of the surgeon. The brain is an oval mass, filling and fitting the in- terior of the skull, and consisting of two substances, a grey, ash-colored or cineritious portion, and a white, fibrous or medullary portion. These substances occupy different positions in different parts of the brain. The grey portion constitutes the circumference of the large and front division, which is called the cerebrum ; it also enters into the inte- rior of the same in various parts, and forms both the centre and circumference of the cerebellum, and the centre of the spinal marrow. The white portion makes up the greater share of the brain. Besides these divisions of sub- stance the brain also presents divisions of form. It is parted into two great masses, viz., the cerebrum and cere- bellum, and at its base there are two other portions, named the annular protuberance and medulla oblongata. These * Many of the current anatomical plates have descended through books for centuries, improving on the way, and may be traced from the masters of the Italian and Dutch schools of anatomy to the pre- sent manuals : a plain sign of their truth and serviceableness. B 2 THE HUMAN BRAIN. are the four primary divisions on the surface of the organ. The spinal marrow, which runs down through the vertebrae or back bones, is the continuation of the medulla oblongata. The above parts collectively are the bed and trunk of what is called the nervous system. From all those already mentioned there arise certain white cords, the nerves, which come out through holes in the skull, and through notches between the back bones, and run to all parts of the body, gradually splitting into filaments, which at length become invisible by reason of their fineness. There are generally reckoned to be eleven pairs of nerves arising from the brain, and thirty-one pairs from the spinal marrow. Be- sides this great nervous plant which continues the life of the head and its appendages, there is also another proper to the body, as it were a creeping or parasitical system, which weaves its meshes among the branches of the former : this is the system of the sympathetic nerves. It is not obviously referable to a centre, like the system just de- scribed, but it has many small centres, scattered throughout the body, but especially near the important organs, the heart, the stomach, &c. These centres are called gan- glions, and are said to consist principally of grey matter. Innumerable fine nerves radiate from them to the viscera, and to the great blood-vessels ; and also fibres pass to com- municate with the capital nervous system. From the general tenor of these two systems it appears that the cerebral is the engine and representative of the mind, and of the body as constituted in the hierarchy of the mind, while the sympathetic system is the nervous engine and representative of the body considered inde- pendently, as possessing a life or mind in itself so far as this system can arouse it. Consciousness does not here come in question. Many of our impressions are uncon- scious, nay perhaps all through the longer part of their DESCRIPTION. O course, though travelling along the cerebral lines. And again, the bodily organs, as the liver or the kidneys, require to exercise processes of selection, and acts of com- position and elimination, to which nothing less than a stu- pendous bodily judgment is adequate. Mental judgment would not be fine enough for the work; and it is only mental judgment and faculty which are conscious. The brain and its parts, including the spinal marrow, are clothed with three membranes or skins. That next the brain is the pia mater, which not only encloses the brain, but dips down into its folds, and probably ramifies more and more finely through its minute divisions, acting as a framework to the nervous substance : it is full of deli- cate vessels which supply the brain with blood. The next membrane is the arachnoid, which is said to form a shut bag like a double nightcap, in the inside of which a lubri- cating fluid is given out, the whole constituting a kind of " water bed "* on which the brain may undulate. The next membrane is the dura mater, lining the moveable arachnoid on the side towards the brain, and lining the bony skull on the other side, and being separable into two layers to suit these two situations or offices. It is the strongest of the membranes of the brain, and gives off membranous pipes which receive and envelop the nerves at their exit from the skull and spine : it also sends down tight sheets or processes between the two halves of the cerebrum, and between the cerebrum and cerebellum, whereby it supports the larger divisions of this soft and tender organism : and between its layers it contains the * Water beds of this kind, i.e., serous membranes, are prepared for all the viscera ; and bursse or water cushions are frequently ap- posed in the joints : where these are. met with they are the means and evidences of some motion performed. 6 THE HUMAN BRAIN. great channels of venous blood known as the sinuses of the brain. We see then that the consciousness is physically nour- ished from without, as the brain is nourished by the blood of the pia mater ; that it is physically moveable, or can assume varieties of shape and state, as the floating brain can move its person upon its fluids, and specifically upon the arachnoid bed : we also observe that the consciousness, like the brain, is limited, the dura mater and the skull being the emblems of that limitation. The brain is supplied with blood by the carotid and ver- tebral arteries. The carotids are the first great vessels which issue from the stem of the arterial tree, and they supply the cerebrum with the first blood of the heart. The vertebrals are the first streams from the subclavians, which supply the arms with blood. Thus the first blood of the body and the lirnbs is alienated to the brain. Its veins, which bring back towards the heart the blood that has passed through the before-mentioned arteries to the pia mater and substance of the brain, empty themselves into certain peculiar channels contained in the layers of the dura mater, and termed the sinuses of the brain ; which sinuses communicate with each other at last, and pass out of the skull by a bend or curve where the carotid enters ; there constituting the internal jugular vein, which carries the first considerable stream that is returned to the heart. The cerebral globe is divided into two halves, and each of these into lobes ; the lobes again being subdivided into convolutions, which have furrows between them that dip down into the brain, and are covered by the pia mater. By means of these foldings, the surface of the cerebrum is much increased, and space is economized ; this folding of surfaces into solids being one of the principles of the DESCRIPTION. 7 S body, whereby distances are brought together, and asso- ciation or organization is promoted. In proportion to the number of these twists or convolutions is the power of the brain. The mind's revolvings are here represented in moving spirals, and the subtle insinuation of thought, whose path lies through all things, issues with power from the form of the cerebral screws. They print their shape and make themselves room on the hard inside of the skull, and are the most irresistible agents in the human world. At a considerable depth the two hemispheres unite to- gether, and below their union, if the cerebrum be opened, w r e come to certain cavities termed the ventricles of the brain. Of these there are four, all communicating with each other ; and a fifth is enumerated, but of small size, and disconnected from the rest. The four cavities form a continuous chamber, and always contain more or less fluid. Thus the brain, far from being prepared for rest, is con- stituted internally upon the moveable pivot of this fluid cushion of the ventricles. The cerebellum lies behind and underneath the cere- brum, of which it is said to be one-eighth the size, and it is divided into lobes and lobules. It consists of grey and white substance, not disposed in convolutions but in thin plates. There is said to be no direct communication be- tween the cerebral hemispheres and the cerebellum. The latter is evidently not a revolving, thinking or spiral organ, but a battery of determination and power : thoughtful con- sciousness does not connect itself with the back of the head, or with the cerebellum. Its form too, double fisted, does not answer to the cerebral functions. Its visceral or hidden situation also brings it into analogy with the other viscera, in which there is no freedom of thought, but fixed accep- tation and permanent action. The nervous system, though apparently homogeneous, 8 THE HUMAN BRAIN. is constructed of distinct pieces, which are extraordinarily united, and extraordinarily capable of separation in their functions. The first piece is the proper spinal marrow, with all the nerves of the limbs, trunk and head which issue from it. This lowest pillar of the cerebral system is in a manner complete in itself, and receives impressions, and executes actions, on its own account. It consists of a running axis of grey matter of a peculiar form, and in front gives off the nerves that convey bodily motions, at the back receives those which carry bodily sensations. The circle of its operations is therefore as follows. When an impression appeals to it from the body through its quasi-sentient nerves, this mounts to the grey centre to which the nerve carrying the impression belongs : an in- stant organic determination then occurs in the centre, a decision takes place, and a motion is sent down through the corresponding motor nerve to the parts which the latter supplies. For example, a pinch applied to the leg lodges its complaint at the grey centre, which at once by its nerves sets the muscles and the limb in that motion which enables the part to escape the distress. This is now termed, reflex action, which means that an impression is communicated to a nervous centre by a set of quasi- sentient nerves, and a motion reflected from that centre by a set of motor nerves. It does not necessarily involve consciousness. A paralytic man, with no feeling in his legs, if the soles of his feet be tickled will move them away from the irritation, just as though he perceived it. In short, the spinal brain is unconscious, or let us rather say, we are unconscious of its feelings. We term its nerves therefore, not sentient, but quasi- sentient. We come now to a second and distinct piece of nervous system, of whose operations we may still be unconscious, viz., the medulla oblongata, whose nerves are connected THE SPINAL BRAIN. with the organs of respiration and the ingestion of food with the functions of breathing and of eating, which al- though they may be permeated by sensation and controlled by the will, may also occur independently of either ; as during sleep, when breathing still proceeds, and in various cases when the movements of eating and deglutition are performed without cognizance. All that is necessary for continuing the actions of the parts of the body supplied from these centres, is, that a quasi- sensation be communi- cated to them, which the centres act upon through the motor apparatus of nerves. The conception of so mere a machine in man, is perhaps difficult to realize ; the spinal brain, however, with its dependencies, represents an auto- maton man as the basement of the nervous system. It is the organization of routine or insect progress. By it we walk, work and eat when we are not thinking of those operations ; and thus the inherent properties of this routine system save us from much expenditure of attention, and allow the brain and the senses to be emancipated as neces- sity requires from the lowest wants. Had we to perform our animal functions by direct volitions, we should have no time for anything better : if each breath were a distinct voluntary act, breathing alone would fill our lives : nor in this case would walking or any other external function be possible, for the will does but one thing at once. As it is, however, a number of bodily acts are momentaneously and harmonically performed, each through the separate vigi- lance of its own agent in the recesses of the spinal brains. We have alluded already to the act of walking, which affords a good example of automatic function. When we are walking without attending to our steps, the foot com- ing down to the ground, conveys the quasi- sensation of its contact to the spinal centres 5 these are roused to a corre- sponding motion j in other words, they command the B3 10 THE HUMAN BRAIN. muscles of the other leg to put it into a forward movement. No sooner is this executed, than at the end of the move- ment, another manifest quasi-sensation is aiforded by the fresh contact with the earth, which contact reaching the centres, engenders a second motion : and so forth, through- out the walk. This is a simple circle, in which quasi- sensation excites motion at the centre, and motion pro- duces quasi-sensation at its extremes. Thus the foot on the ground represents sensation, and that in progress, mo- tion, and the two contemplated together represent the links in a chain of nervous fate. The next piece of the nervous system consists of the nerves of the special senses, and of certain central parts at the base of the brain, to which those nerves run. The latter are the sensual* brain, from which fibres emanate that ultimately become the olfactory, optic, auditory nerves, &c., which run respectively to the nose, the eye, the ear, the mouth and the skin. The central endowment of this nervous piece is sensation. In itself it provides a simple circle from sensations to motions. Impressions which are perceived by the senses mount to the sensual centres, which dictate suitable actions. The instincts of some animals low down in the scale, are to be referred to this class of mo- bilized sensations. Instances of purely sensual actions are comparatively rare in man, so rapid is the transit of feeling into desire, which is not a faculty of mere sense, but the gift of a mind in direct communication with the senses. The instinctive * We prefer the term sensual to sensory, which seems coming into use. The word sensory, if applied so low down, would exclude from sensation all above it, and the cerebral operations would fall into abstract forms : whereas by allocating the term sensual to the nervous centres of the external senses, we leave the term sensory for the inner senses, to which it has been appropriated from old times. THE SENSUAL BRAIN. 11 laying out of the body for pleasures, and its spontaneous avoidance of pains, are however cases of this order. More- over we feel that a strong vein of these actions runs through many of our habits, and executes them for us, contemporaneously with our desires. Habitual vices, in proportion as they become fixed, seem to roll upon this fatal wheel, by which low pleasure runs incontinently into motion. The bottle is hung round the neck of the drunk- ard by a simple sensual circle of the kind, as well as by a longer thong of which perverse desire is the neck-piece. By a similar yoke, of seeing and leering, is the voluptuary led by his objects. In short, whatever we do, good or bad, without being able to control it, appears to contain a sen- sual kernel. Sensuality, however, is a passive faculty, and we shall have to distinguish presently an active part belonging to it, and playing upon it, and which for the present we term animality. This then is the third of the nervous stones which construct us, sensation, which set a-moving is sensuality. It leads us to dance pleasantly but involuntarily to the music of the senses. Its seat is in the base of the brain. The fourth and remaining piece of the nervous system comprises the cerebral hemispheres, which reasoning by the method of exclusion we regard as the seat of the mind, or the properly human faculties ; and not only of these, but of all those powers which belong to consciousness, and are over and above the senses. These hemispheres are predominant in place and size in man, as well as in the higher animals. We have now chronicled three divisions of the nervous system,* which may be grouped into two, an animal and * The nervous system, or its functions, are sometimes dissected for us by diseases, as well as by narcotic agents, which benumb one part and leave the others free. For instance, during the administration of 12 THE HUMAN BRAIN. an automatic ; the lowest of these is a nerve machine, the higher in its twofold aspect is a nerve animal, with senses. We know nothing that expresses so physiologically the case between the automatic and the other part of this sys- tem as the ratio of the living creatures to the wheels in Ezekiel. " And when the living creatures went, the wheels went by them ; and when the living creatures were lifted up from the earth, the wheels were lifted up. Whi- thersoever the spirit was to go, they went, thither was chloroform, first thought and will, and the fixity of sense which de- pends upon attention, become confused and waver: and shortly after- wards active consciousness is abolished. The cerebrum is detached from the train, and life goes on at slackened pace without its traction. The sense of pain however still continues. By degrees this too is lost : the second and feebler engine of sensation, the sensual brain, is also detached, and nothing but breathing is prefixed to the cars. This now becomes slower and more slow, and if the experiment be con- tinued, ceases. Life is then generally irrecallable. In natural and artificial trance the process of disconnection may proceed two steps further ; and the nervous function may be detached to a certain dis- tance from the organism, and yet be capable of reassuming its place. In the case of narcotism the separation takes place from above downwards : the mind is first taken away, then the senses, and lastly the breath : but sometimes the reverse process occurs, as at the hour of death, and first impressibility, and second sensibility are lost ; whilst the mind retains its clearness, or even enjoys additional powers of circumvision and forethought. These states are opposite, although the beholder may mistake them for each other. And not only disease, but the ordinary state, shews the separateness of the nervous pieces. Through the greater portion of life, thought and will are dormant, or the tops of the hemispheres are not in ac- tion, though the man is conscious. Many times also imagination and desire are completely at rest, although feeling is left ; the eye immits rivers of objects without stirring any motions but its own as it rolls magnetically after the pictures. And then again we experience nume- rous twitches and convulsive movements for which we cannot account, or in other words, which are originated in the circle below the sensual brain. THE CEREBRUM OR ANIMAL BRAIN. 13 their spirit to go ; and the wheels were lifted up over against them : for the spirit of the living creature was in the wheels. When those went, these went ; and when those stood, these stood ; and when those were lifted up from the earth, the wheels were lifted up over against them : for the spirit of the living creature was in the wheels."* On arriving in our upward course at the cerebral hemi- spheres, we have come to a group of functions which re- present the powers of the mind : consequently here we have no longer a simple centre to consider, but an organ with various essences. For the mind is evidently twofold ; at the first analysis it is a rational spring on the one hand, and an animal spring on the other. It may be devoted to the truth of things, and proceed from thought to judgment, and from judgment to will, and so give the dictates of rea- sonable actions. Or it may be spent upon gratifications, and run from imagination to choice, and from choice to desire, and thus stimulate animal actions. In short, there are two minds in man ; the one which he possesses in com- mon with animals ; the other which is properly human. But where do we find these two in the cerebral hemi- spheres ? To this we reply that the whole cerebrum is the general sensorium ; that is to say, the residence of the animal mind, or the mind of the senses. For the fibres coming up from beneath diverge to the entire cerebrum, and ter- minate in its cortex. This brain then, as related to the incitements of sensation, comprises the various powers which sensation stimulates, and into which it passes ; that is to say, it includes memory, imagination, desire, and again the corresponding series of animal determinations which give birth to their proper actions. To this general * Chap, i., verses 1921. 14 THE HUMAN BRAIN. sensory and motory head we also refer many faculties which go under the name of instinct ; its great tides of change are emotions, joy and sorrow, and the like ; and its general states we term moods. The passions are the lords of this worldly brain, by which man sympathizes with all nature in its own way, being governed by the moon and the weather, the circumstances of his society and his age, and whatever influences come from without. The absence of moral freedom characterizes its actions, when these pro- ceed from itself alone. Its faculties are vague and general, and move altogether in their mass. It gives the pervading temperament and tone to the animal body, and being the highest expression of animal life, and bulky and forcible with our whole nature, its actions animate the frame with prodigious vigour and universality, as we see in the case of the various passions and emotions. Contrivance, cunning, and a number of conjointly human and animal qualities belong to this general sensory, and put on the appearance of wisdom or reason, not only in animals but in men : so that whether such or such actions argue reason is an equal problem in both creatures. On the other hand the human mind, as distinct from its own animal mind, appears to reside in the cortical circum- ferences alone, and to play upon none but the very centres of nervous power, and not upon these in the gross, but with skill and discrimination. Thus it does not consist in new materials, or fresh parts, but in a fresh use of parts, and a new architecture of materials. The supreme superficiality of the cortex of the brain, its partition into convolutions, the separate moveableness of these, their brain-embracing wholeness, shew that a freedom is possible, and a uni- versality conceded, to these parts, which neither the fibres per se, nor the other groups of cineritious substance, can enjoy. These conditions agree with the requirements of THE MIND OR RATIONAL BRAIN. 15 thought and will, both of which are central and concen- trative ; are seated at the top of the mind ; work by sepa- ration and decision, seizing upon main points and govern- ing provinces therefrom ; and both of which finally can claim any portion of the domains of our animal nature, and control it, until its animal essence is reduced to har- mony with reason's will. These cortical substances, in their distinct use, are the factories of mental skill. It is their perfection to accept neither temperaments, nor wea- thers, nor the criminal influences of the stars, nor the imaginations, sensations, or apparent relations of things, as their allotted sphere j but they shape and cultivate things and ideas afresh ; they recast influences on their own principles, of truth or falsity : their reception of outward nature is the philosophy of the man ; their works are the creative arts of his mind ; and their judgment is his moral soul. All this, we remark, demands no second brain apart from the general sensorium, but the command of this in its highest parts, where it is free to obey, and the reconstitution of those parts by the usage and skill of the rational power. In this respect the brain may be likened to the hand, which is a coarse, general and animal tool in the savage, and for some operations, such as grubbing in the earth, disqualified by its division into fingers ; whilst in the civilized man it is extemporized by his mind and education into a running power of convolutions from which tools proceed and arts radiate, until nature is subdued and home is built : the separate use of the fingers being the sign and cause of this new essence in the hand. It is therefore in the mind and not in the brain, and in the rational mind and not in the animal mind, and not in mere ends but in moral ends, nor in mere determinations but in moral determinations, that man is different from animals. Or to keep within our present subject, man is 16 THE HUMAN BRAIN. human or hyper- animal because he has a mind extra, which uses, or can use, the top of his brains. The separateness of the animal from the rational brain is functionally more distinct than the separateness between the other parts of the nervous system. Do we not all perform vivisection upon ourselves every day in cutting reason off, and thinking and acting from animal motives ? in keeping the mind under, while vague imagination, desire and pleasure over-ride it ? in merging it in a sea of natural emotions and commotions, which allow reason no beginning, and will, none of its distinctness ? But as for the structural separateness, the rational brain is no other than the mind itself as a distinct organization, whose ex- istence is demonstrated by its play upon the cortical organs. This mind terminates the brain, and begins a new subject with new expressions ; we cannot see it unless in its own way of intellectual sight ; nor can we now pursue it, be- cause its attributes hold no commerce with anatomical terms. The nerves or brain form a representative system, which does not itself come in contact with objects on the one hand, or with actions on the other, but deals in the one case with the images of things, in the other with the com- mands of actions. It results from this, that whatever will produce the central impression, sensation, imagination, or intellectual vision, will cause the appearance of the object, whether it be present or not. Thus if the brain can radiate down to the spinal cord a vibration like that which the cord receives from any object as an impression from with- out, the same motions will be engendered as flow from the apposition of a real circumstance or object. So again if the brain can shake the optical centres as light shakes them, or can extemporize the part of light within them, the man will have the sensation of light as though it were ITS CIRCUMSTANCES AND EXCITANTS. 17 present from the sun or a candle. And so too if the soul or spirit, or any other spirit or influence, can make the imaginations or the thought-movements in the cerebral substance, these will seem as much our own thoughts as though no such influence had been exerted. But in both cases, be it remembered, there is an object out of the fa- culty excited ; though in the one case the object is out of the organism externally, in the other case out of it in- ternally. Each of the centres then, namely, the automatic, the animal, and the rational, are susceptible of a twofold ex- citement ; first, from a circumambient world, or from be- neath, through their own proper circle : secondly, from the organism, or organisms, above them, and thus indirectly from a higher circumambient sphere. Each also has its memory ; which in the spine is habit ; in the animal brain is proper memory ; in the distinct cortex is principles, which hold things together in the bonds of ratio or reason, as memory combines them in the bonds of a common sen- sation. Habit then is the spine of the nerve-man ; me- mory is his world of sense, or his senses ; and reason is his proper head. Let us now pause for a moment to ask cursorily the use of the brain to the mind, as illustrated by the foregoing observations. Now what is the use of the spinal cord to the senses and the brain ? for this will give us a similitude of the answer to the previous question. Its use is, to carry the general cerebral principles into an automatic or me- chanical sphere, and there to set them up in unconscious operations. Thus the spinal cord makes motions which look as though they proceeded from emotions, when yet there is nothing felt. This dramatic mechanics is the mar- row of the nervous system, and consequently of the body. As a principle it reigns throughout it. The whole system 18 THE HUMAN BRAIN. is a quasi thing ; a mental theatre or drama. The spinal cord moves as though it felt ; the medulla oblongata breathes and eats, as if it were instinct with appetites : the senses feel, as if they were conscious : and the brain understands, as though it were a spirit. The cheek too blushes, as though it were ashamed ; and so forth. But all is quasi, and depends upon a reality somewhere which is in none of the actors ; and which reality, proximately, lies in a spiri- tual organism, or in the human mind. Take this away, and the mimicry is soon at an end. Thus far then the use of the brain to the mind is, to enable the latter to personate itself in a dead world, which it could not do without a brain and body, really dead, and yet seemingly or dramatically alive. It is not long since it was believed that the actions of the spinal marrow were evidences of consciousness, and that feeling was implied in its habitual regular movements. And it is still thought by many that sense or feeling is ne- cessarily connected with consciousness : and by almost all, that consciousness is where it seems, namely, in the head, and not in the mind. But strike away the lower fallacy, that muscular or convulsive action has any necessary con- nection with feeling, and the other fallacies also totter. For if without feeling or motive we can be impressed and act through . the spinal cord, we can, without an inherent mind, understand and will in the cerebral hemispheres. Or in other words, as dead a structure in the brain may be in apposition with the mind, for mental purposes, as that which is added to the brain in the spine for impressional and motor ends. The corollary is, that life is not in the body at all, in the brain any more than in the nails ; but that the body is essentially dramatic ; can feel as it were, think as it were, and will as it were : which indeed is the reason why the soul, desirous of doing all these things in ITS PERSONATION OF MIND AND LIFE. 19 a world which likewise is dramatic, adheres to a frame which is so perfect a medium of representations or mun- dane actions. But let us also consider for a moment the relation of the mind to the brain, by an inverse analogy, namely, the re- lation of the brain to the spinal marrow. What then is the latter ? The difference of place between the two, and the difference of calibre, are too obvious to mention. The one is the head of which the other is the foot ; the one is the luminous globe of which the other is the ray.* Now the brain performs or instigates on new grounds, with new efficacy, and in a thousand thousand new forms, the general automatic actions of the spinal marrow ; for it extracts the secret and meaning from sensible impressions, and produces actions correspondent with the circumstances which that meaning shews to exist. All the actions of man are prox- imately brain-work ; so also are all his perceptions : whereas a few automatic movements and convulsions are the whole of the actions that can be assigned to the spinal marrow. We have here a glimpse of the transcendent nature of the next higher term of the series ; and if by the rule of three we may say, as the spinal cord is to the brain, so is the brain to the mind, we shall admit that perfections, ampli- tude, and newness of function will occur in the latter which it baffles words to describe. The same truth is presented by comparison of the parts of the brain within itself. Thus from the great cortical surface of the cerebral globes the white fibres radiate down- wards and inwards, the calibre of the radiant mass becom- ing smaller as it travels. Presently the rays are arrested * Here we may remark that we agree with the ancients, that the spinal cord is a continuation of the brain ; although it is also, as the moderns say, an axis of independent centres ; but its dependence is a longer truth than its independence. 20 THE HUMAN BRAIN. by a new bed of cortical substance, that in its turn sends down radiating fibres, which similarly converge and de- crease. The same process, of encountering the cortical part, starting afresh, and always diminishing, is repeated, until both the cerebellum and the cerebrum terminate in the small medulla oblongata, and in the narrow spinal cord. Thus powers are stopped off and arrested as the brain descends ; or reasoning backwards, as Gall has done, they are added on as the medulla oblongata ascends. What must be the addition that takes place in the mind ? what the new breadth in its cortical spheres ? what the acres of the sheaves and bundles of its intellectual light? and what, on the other hand, the gulf of loss and degradation that lies between it and even the highest portions of the brain ? Thus far we have attempted a slight sketch of what may be said with some certainty of the functions of the nervous system. We have found that it consists firstly of an auto- matic apparatus, the spinal brain, by which contacts are apprehended, and motions executed, without the interven- tion of our consciousness : secondly, of an animal brain, which is to all intents and purposes an animal, or imagines, desires, lusts, contrives, plans and acts from animal mo- tives, though very imperfectly, from defect of instinct, which is the limiting perfection of the beasts : and thirdly, of a rational and voluntary function, playing in its revolv- ing cortex, and evidencing the presence of an invisible mind, whose action reveals the human brain. Thus we have found that the brain per se is not human, but perpe- tually humanized ; and that in its openness to that which is next above it, and its docility to the spirit, lies its grand endowment. In thus proceeding from below up- wards, we have been separating parts whose perfection lies in their harmonious union. We must now make amends UNITY AND DISUNITY OF THE NEKVOUS SYSTEM. 21 by declaring, hat the influence of reason, permeating the animal brain, gives it powers supereminent over instinct ; and as man domesticates the animals, or chooses those which suit his purpose, and abolishes the rest, so does reason govern the moods of the brain, feeds upon its tran- quil emotions and compresses those which are fierce, gov- erns its imaginations, and in a word civilizes the savage countries of the original head. All this is no work of passion, or simple pleasure or pain, but of artist-like strug- gle and contest, whereby reason, or the true ratio between the mind and the brain, begins to be established, and the little spots already cultivated are extended until the rest is won. In this high state of the brain the human faculties permeate the cerebrum, and the animal faculties, prodi- giously cultivated beyond the wild state, are everywhere parallel with the rational powers. And so too the me- chanical faculties, all the manufactures of thought, or the mere motions of the body : these are surrounded by a con- sciousness which knows what they will be, before they appear ; they are developed into mechanism after mechan- ism, all the inventions of reason and will in the mechan- ical sphere. This is a condition of the nervous system which is seldom witnessed, but we place it as a counterpart to the state of disunion considered before : the ordinary state is a kind of composition between the two, and can easily be constructed out of these extremes. I do not know that we can escape generalities in treat- ing of the functions of the brain. Certainly at present, when we go inwards, whether into the head or the mind, a few powers present themselves, very little colored, and with none but a general outline. The grey and white shadows of metaphysics seem to answer to the cineritious and medullary groups of the nervous system. But there is no doubt that the truths of this class are valuable, as 22 THE HUMAN BRAIN. the pure science of the body ; and that they are the out- lines of a multitude of more interesting sciences. There is indeed a branch which it has been thought throws a broader light on the nature of the brain : we allude to phrenology. This office of phrenology we regard however as a misapprehension. As we understand phre- nology, it is a science of independent observation, which is completed in tracing the correspondence between the surface of the living head and the character of the indi- vidual. It was as such that its edifice arose stone by stone in the hands of the illustrious Gall. He noticed that por- tions of the surface of the head stood out in those who were prominent in certain faculties, and putting the bodily and mental prominences together (for which may he be honored !), he arrived by repeated instances at the signs of the character as they are written upon the head. He completed the dark half of the globe of physiognomy, and letting his active observation shine upon it, he found the rest of the head representative of the whole character, as the face is expressive of the mind. Expression, we may remark, is living representation, and representation is dead expression. The representation of the man by his head had always been vaguely felt, and the best sculptors and poets had imaged their gods and heroes with phrenological truth. But Gall made their high intuitions so current that all could buy them. Now this department of physiognomy surely might be carried to the perfection peculiar to itself without the head being opened. Nay, it would be best learned without breaking the surface ; for the beauty of expression and representation lies in their bringing what they signify to the surface, and depositing it there. But for this purpose the surface must be whole. There is no interval between life and its hieroglyphics, but the one is within the other, as a wheel within a wheel. The thing PHRENOLOGY. 23 signified by the organ of form is form, and not a piece of cerebrum : love is meant by the protuberance of amative- ness, and not the cerebellum : and so forth. It is super- ficiality, and not depth, that is excellence here. The deep ones had dug for ages in the brain, and found nothing but abstract truth : Gall came out of the cerebral well, and looking upon the surface found that it was a landscape, in- habited by human natures in a thousand tents, all dwelling according to passions, faculties and powers. So much was gained by the first man who came to the surface, where nature speaks by representations ; but it is lost again at the point where cerebral anatomy begins. Gall himself was an instance of this, for he was one of the greatest and most successful of the anatomists of the brain. But when the skull is off, his phrenology deserts him, the human in- terest ceases, and his descriptions of the fibres and the grey matter are as purely physical as if they were of the ropes and pulleys of a ship. It must however be supposed that the brain has a defi- nite ratio to the head, but what that ratio may be, is an undecided question. It is difficult to prove that the risings and fallings of the skull correspond exactly with those of the brain. This is of no consequence to phrenology as a science of observation. And it does not follow that the representation of faculties is equivalent to physical corre- spondence or similar undulation of surface. The nose represents the sense of smell, although the olfactory nerve does not lie under it in the form of a nerve nose. And de- structiveness may lie in its bony den without exactly fit- ting the bone. On the contrary w T e might suppose that where activity was involved, there would be room for exercise ; and that the inner table of the skull would re- present something more than the limits of the greatest exertions of the faculty, the arms-length, spring and hatchet-play, for instance, of the destroying organ. 24 THE HUMAN BEAIN. Moreover, looking at the instance of the face, it does not appear certain that the ratio is between the surface and the parts immediately beneath it. Concealment and pro- jection are elements of representation. The eyes are put forth far away from those cerebral origins which they sig- nify, and with which they communicate. The parts that functionally underlie the eyes are not the structures nearest to them inwards. The superficial-making process is often slanting, as is seen in the ducts of many organs, which carry the produce by which they represent the organ to a spot remote from the surface above it. We are inclined however to believe that there is a fitness between the parts of the phrenological head and the brain underneath them. And we suspect also that the ratio is one of quantity. For when we consider the whole frame as representative, the front half of the body stands for ex- pression, or that which represents the mind actively, and in the face intelligibly; while the back half stands for representation or reaction. The front impresses spiritually, the back materially ; or in other words, the front acts, and the back reacts. Now the reaction consists in the gross pushing of the frame, while the action is skilfully sup- ported upon this, and busy in the front. This pushing for a rest necessarily is quantitative, and moulds to its shape what it comes against, if the latter can take an impression. The skill of action on the other hand similarly moulds, but at a distance from itself, and upon the models of quality or design, which issue from its creative fingers. Now it seems as if the brain, considered as made of organs, and as determined to without, leans the backs of those organs against the skull, their fronts being turned to the origins of the nerves of the face and body ; and thus gives upon the skull the back or passive side of the character, and a portion of the front or active side in the face. But still the push of the organs against the skull, and PHRENOLOGY. 25 their protrusion or apparent bulk, would not shew that the protrusion upon the head was primarily due to the subja- cent organ. In a soft and yielding mass like the brain, the strong and energetic parts would, it seems, hold their places, displace the others, and cause the weakest to go to the wall. Thus a stout eminence on the head might sig- nify firmness, though the organ of firmness were far away, making room for himself in all directions, and ousting the feeblest parts of the brain into the poorest places, aside from the rest. In fact, power is always felt physically at a distance from itself, where reaction and resistance begin. Thus feeble races are pushed up into the moun- tains before their conquerors, where their condition indeed signifies power, but it is unfortunately the power of their enemies, and their own weakness. We might then expect that in the reactive skull the greatest prominences should have under them the most passive portions of the brain. And if this be the case, the phrenology of the brain would be the inverse of that of the head, and each depression or elevation on the skull would not be the result of a simple pressure, but of the varying balance of two or more facul- ties or organs, pressing each other up or down as the case may be. It does not seem impossible that such a phreno- logy of the brain should be constituted ; which if it were, it would signify the strength and weakness of the charac- ter, both written on the surface. Undoubtedly many of the exaggerations of character proceed from the imperfect resistance offered by some of the faculties, and shew their strength in the direction of our greatest weaknesses. Thus their forcible nature argues the compliance and not the active strength of the mind which immediately executes them. If this hold good of the skull also, then it contains no organs, but merely passive evidences of the faculties, and we are brought again to the point, that phrenology is c 26 THE HUMAN BRAIN. more properly to be called cranioscopy, and to he regarded as tlie mute complement of physiognomy. Moreover the correspondence between insides and out- sides cannot be calculated upon with nicety. Circumstances not only environ essentials, but alter their shapes and seemings. The skull, as a circumstance surrounding the brain, may represent it badly, as a poor gift of language may choke the utterance of a rich heart. It by no means follows that there is harmonious co-development of the parts, but on the other hand, the instances of this perfection are rare. Brains may be born into inconvenient cases, just as good human minds, veritable immortal children, are born into idiot brains. Difference of form. also, and con- sequent difference of distribution of the constituent parts, may be expected between different races. If the climate and the wants of life are various, the shape of the life and its parts will be various also : the faculties will con- sent to the circumstances, and grow in their training. Ideality will not fight with hope for any precise chair of bone, when the relations alter, and another piece is natu- rally offered. A faculty squeezed in by circumstances will rise up somewhere else, or cause the protrusion of some other part. It seems clear, then, that the brain will con- sent to be packed differently : that if its external world or climate, viz., the skull and membranes, are of a new type, its resources will not be overset, but developed in a new direction. But this does not disprove phrenology, though it may perhaps cause us to hope that there are phrenologies besides the European, and that this little science also is of a spherical richness. Perhaps we have been too much accustomed to regard the exterior head as a mere wrappage of the brain, whereas, like other externals, it is independent like the brain itself, and has its own centres of structure and function. We PHRENOLOGY. 27 have likened it to a country or climate that the brain in- habits, and pursuing the analogy we may say, that the inhabitant did not make his country, nor can he modify it, excepting in so far as he is modified by it. True, he is destined to mould it to his wants; but then the wants them- selves draw their forms from the climate. Hence we see that in the greatest shell or skull which is built up around every man, namely, his vault of sky, and what it contains, a typical difference exists which cannot be reduced for dif- ferent vaults to a single rule : the skull of heaven has many shapes, and societies or brains fill them differently : destruc- tiveness in one wages itself upon lions and tigers, or is committed to the arms and hands ; in another, it goes forth with the powers of the mouth or the sword of the spirit. Phrenology, following this order, must rather start from a type, and gradually depart from that, than attempt to make the type universal in the relations of shape and place. In short, we must admit a comparative phrenology in the human race itself. Phrenology, however, is one of a group of sciences dif- ferent from anatomy, and its truths are of larger stature than those which we are considering. It belongs to the doctrine, not of the human body, but of man, and is one of the lesser departments of anthropology. It furnishes also a contribution to that which is the science of sciences, namely, the significance of forms. Considered as a branch of observation it has not been assailed successfully, because no one has paid so much attention to its facts as the phre- nological student. We take his word for its truth, at least provisionally, since the oppugners have formed no contrary induction, which in destroying phrenology, might supplant it by a better practical system. And if we are not mis- taken, the world will give it a long trial, were it only that it deals with the substances of character, and seems to c 2 28 THE HUMAN BRAIN. create a solid play-ground away from the abstractions of the old metaphysics. Color and life, substance and shape, are dear to mankind, as homes against the wind of cold speculation. We cannot give them up for patches of sky a thousand miles from the earth, or for anything, in short, but still more substantial houses. An important set of problems concerning the brain and nervous system remains to be noticed : namely, the doc- trine on the one hand, and the denial on the other, of a nervous spirit or fluid. On this subject interest has ceased, in consequence partly of the uselessness of the controversy. Each party has wielded a sword to which the other was invulnerable : a sign that Providence did not intend the dispute to be settled upon the terms of either. Nor per- haps can we ourselves command a decisive victory for our opinions, which are affirmative of the existence of a nerv- ous spirit. Nevertheless we think that our side has been increasing in strength of late ; and that the contest must be renewed. In the first place we remark, that no part of our frames is so little given up to sight and sense as the live brain and nervous system. No part is so much alarmed, or pre- sumably so much altered, by exposure. Nay, there is no part in which there is less to see than in this supreme or- ganization. Detail and structure and the broad lines of design begin to be inappreciable, as a preparation for the indwelling and shadowing forth of something w r hich is absolutely invisible to the senses. Per contra there is no part in which there is so much left to fancy, to imagination, and to the inner eye of reason. Tempered thoughts seem to be the only steel that can open the viscera of thought. The method a priori appears to be as much prescribed by THE NERVE SPIRIT. 29 nature for investigating organs that work a priori, or from life downwards, as, they say, it is proscribed from those where the senses give immediate information. The truths that we can see, we do not discern by reason : but con- versely reason must discern those which the eye cannot see. If all truth is a posteriori, then the physiologist can see the living brain in vision. But as he has lost this faculty, reason in the meantime must have place. Now neither of the parties in the above controversy has ever seen, still less dissected, the living brain, meaning thereby the brain in the exercise of its functions, thinking and reasoning in its peaceful head. On both hands, then, imagination has been active in all that has been said. The question therefore is, as in several other cases, Which party has the best set of imaginations ? measuring the excellence on either side by the fruits that it produces in its department. Which set of conceptions the affirmative or the negative comes nearest to life, and to those attri- butes which will fit the highest organ of man's body, and one which receives the influences of his mind? For reasons of analogy, necessity and experience, we adhere to those imaginations and thoughts that postulate a nervous spirit. Be it observed, however, that we do not dogmatize re- specting the physical properties of this which we term a fluid. In reasoning by analogy, we are forced to take with us the garb of the known sphere, and to talk of a fluid, because the body furnishes the word. We desire, however, to hold the term loosely, and no longer than until a better analogy, or the real name, arises. It is well known that influences mount from the body to the head in sensation, and descend from the head to the body in voluntary motion ; and anatomy demonstrates that the course of these influences is, in sensation, from the 30 THE HUMAN BKAIN. skin and sensories through the nerves to the brain ; and in action or motion, from the brain through the nerves to the muscles, bones, skin : in short, to the body as set in mo- tion. Furthermore investigation shews, that the course of the same is, from the nervous fibres and fibrils, through the medullary fibres of the brain, to the cortical or gray substances at its surface and in other parts. What do we deduce from this known transit of influence ? Or what is the meaning of the ambiguous term, influence ? Two views have been current. On the one side it is maintained that the fibres are solid, and that the influence is a vibration which traverses the fibres in both directions. On the other hand, the influence is regarded as a real in- fluxion, and the fibres are regarded as conduits, permeated by a fluid. There is a third hypothesis, of a gelatinous or other fluid in the nerves, which propagates forces by waves or undulations, but does not itself move forward : but this is only a subdivision of the doctrine of vibration. And there is a fourth view that we can /N know anything about the matter. But we do not yet know what can be known. In thus classifying opinions we by no means in- tend to convey that they are held sharply by any one at present : on this subject the state of most enquiring minds is mixed ; indeed the apathy felt of late respecting the controversy is too profound to admit of distinctness of parties. I. If the fibres were solid, and traversed, not by a fluid, but by a vibration or undulation, such vibration would be dissipated into the surrounding parts, especially in the brain, where the fibres lie close together. The softness and non- elasticity of all parts of the nervous system seem unadapted to mere vibration being communicated, for vibration depends upon tension, and the only condition of tension in such a system lies in a moveable fluid distending THE NERVE SPIRIT. 31 the fibres, And when a nerve is tied, the sensation or motion which it supplied becomes arrested at once, which would not be the case if these depended upon vibration. Certainly nothing can be conceived less adapted than the brain and nerves, to the ordinate propagation of electricity or any other imponderable, unless limited to a fluid vehicle. The hypothetical currents of vibration, however, must be ordinate and distinct beyond measure, for on the one hand they are the lines of thought and will, sensation and action ; and on the other, the fibrillation of the brain is exquisitely minute and separate even to the naked eye. We gather from these reasons, that if the nervous current be in any analogy with electricity, galvanism, or other imponderable, it must itself still be regarded as an incarnate imponder- able ; as might be anticipated from its domestication in the human body. But an incarnate imponderable, pre- serving its velocity on the one hand, and being embodied on the other, is only conceivable as an animal fluid or a fluid animal, whose speed and other attributes are life-like, thought-like, will-like, and sense-like. II. The analogies of the grosser parts point to the tubular structure of the nerves. In the body, where there is an organ as a bed, and trunks, branches and twigs proceed from it, the derivations are hollow, and carry a fluid. This is the case with the heart, the lungs, the stomach, the liver, the kidneys, the pancreas, &c. On this ground we understand their functions ; in their produce we re- cognize their use in the economy. Again what reason can we give for the quantity of blood which is applied to the brain, and which is more in proportion than is sent to other organs, if it be only required for its nutri- tion, and not for supplying a large quantity of fluid. How also can we account for the physical debility conse- quent upon certain effects, unless by a waste and spending 32 THE HUMAN BRAIN. of a fluid ? And recurring to analogy, does it not seem to be in the order of things, that the living principle should act through the fluid upon the solid, when we find that the more living parts of the body, as the brain and nerves, are the softest ; and the less living, as the tendons, ligaments, and bones, are the harder and the hardest : also that in the earliest stages of formation all things are fluid, and at the very beginning, a fluid, and that hard- ness grows up by degrees, and plasticity ceases ; old age consisting physically in stiffness, unyieldingness and ossi- fication. Further, that the change of pervious canals into solid ligaments, fibres or threads, which takes place often in the body, is always a change from vitality to- wards the contrary ; shewing that the solid form is a degra- dation of the previous fluid, and not vice versd. It seems then a prepared belief, that the nearest thing to life is the most life-like, the most moveable, the most quick, in short, the most fluid ; in a word, that a nervous fluid is itself the first organ in the body, and the physical handle of the spirit. III. To come to experience, what are we to think of the pulpy, semi-liquid texture of the brain itself, and of the immense proportion in which fluid enters into its composi- tion ? That there is a cerebral fluid is past doubt, for the brain consists of almost nothing else. And if three-fourths of the mind's organ are fluid, certainly that portion is subject to mental arrangement, like the rest. When the mind is gone, the arrangement is gone, and hence the dead brain gives no response respecting the nature of the fluid. Nor indeed would the sight of the living brain reveal the mystery, unless the observer had some thoughts commensurate with the organization which prevails in these provinces of the soul. A fibre of truth, tubular from heaven downwards, and a fluid mind travelling in it, THE NERVE SPIRIT. 33 in short open faculties, would be the only conditions of discernment, even if the skull were a window through which the brain could be seen. But at least we can con- clude, that the so-called serum of the dissecting-room is only the corpse of the cerebral spirit. It is true the dead body retains its shape when life has gone, and is therefore instructive still, but the animal fluids undergo alterations even in form, when they fall out of their native shapes, the vessels, as witnessed in the coagulation of the blood. And for this reason these liquid corpses teach absolutely nothing of the properties of the living fluids. To illustrate these remarks, we will put an analogous case of a larger order. Suppose that London were visible from one of the stars, and were known to be a city of the living, but its inhabitants were not within the power of vision. And suppose further that the stellar people were of those who believe nothing but what they can see. It is clear that the outworks and great channels of London life falling under their ken, would be mistaken for the living things. And as life always brings motion to mind, the vibrations and shakings of the houses and walls of our metropolis would be postulated as the life which was alleged. But suppose further, that on some coronation day vast crowds of the inhabitants assembled, and formed a dark mass before the eyes of the gazing star ; this would of course be taken to be of the same substance and rank with the houses, and the identification of life with bricks and mortar would still stand. In this case the truth, or the living multitudes, though seen, would lend itself to the fallacy ; the only escape from which would be by analogy, proclaiming that solid houses everywhere are dead, though inhabited by fluid or freely moveable living beings ; by imagination or hypothesis, guessing that towns and streets are for men, and not vice versa ; and by reason c3 34 THE HUMAN BRAIN. or theory, affirming mankind, and accounting for the ap- pearances of the city upon the wants of its substantial though separately invisible inhabitants. But IV. the existence of an animal spirit has great historical probability attached to it. For the course of knowledge has consisted, not in confirming abstractions, but in merging them in some adequate reality, such as we are now claiming for the life and spirit of the brain. The concrete form of things, or the tracing them home, is the final victory of knowledge touching mere existence. So long as life is an indeterminate phrase, applied without distinction to the whole system, the study of that life has not commenced, for its presence has not been gained ; but when its proper currents are found, and the mind traverses them, then the separate knowledge of their properties can begin, but not sooner. And moreover the triumphs of this age are peculiarly due to the introduction of the mind to the empire of the fluids. The steam engine and its nervous spirit, steam ; the railway and its locomotive fluid, the train ; the wire and its electric spirit, shew the practical benefits of the subordination of the solid to the fluid. And in human progress, it is the fluid and the modifiable that give motion and impulse to the otherwise fixed. What are quickness, conception and imagination, but the fluids of the mind : regard them at work, and you can bring them under no other analogy. They stir the old, hard world, and permeate all things, and like nervous fluids are pre- sent in a moment where their mission is, with the power of arranging and quickening virtue that they have received in the fountains of thought. Indeed I see not that there is any known sphere of things whose analogies do not cry aloud for the existence of a fluid brain governing the solid, and like it, organized, though on a more living plan. Thus until a nerve- spirit be admitted, How can the THE NERVE SPIRIT. 35 science of the brain be in fraternity with the other arts and sciences ? V. If this fluid is quasi-life, or what is the same thing, physical life, it may well be conceived that the nervous tubes will close against it in the moment of dying ; as the dying arteries contract, and shed away the arterial blood. Death has no hold upon life, but its chill grasp is its means of losing it. Hence microscopic observations upon the nervous fibres never can give the negative to their tubular form or fluid contents. The problem does not come within the brains of necrology. Moreover, how if the tubes were spiral, and not straight, which might be the case in a system where velocities are such that distance forms no element in the calculation ? In that case, even supposing the tubes were hollow, they might never be seen as tubes by reason of their insinuations and turnings. For in the realms of mind and thought, the shortest distance between any two points or ends, is that which leads through all the means, no matter by what length of course. The zigzag of the lightning is in the straight line of smiting. VI. The doctrine of a nervous fluid seems further to arise out of the construction of the system from successive pieces, each higher and broader than that preceding it. For this ladder takes us up to regard the mind itself as supremely nervous. Now each part has its centre in itself ; but also is traversed by the part above it, on its way to the surface ; whither all the pieces, the high and the low, arrive alike immediately, or are represented. Thus the mind comes down through everything and its spirit glitters in the face. And thus all the actions of man automatic, sensual and animal may be shot and pierced from the quiver of life, until they are nothing but rational and spiritual actions. It is to be remarked, however, that the visible solids ter- minate with the brain. If, then, the mind has fibres re- 36 THE HUMAN BRAIN. presenting it in the brain, as the brain has fibres represent- ing it in the spinal cord, the former fibres must lie in the fluids, for the solids belong to the brain itself. Thus, while the brain or organism terminates in its own centres, the cortical substances, or supreme solids, the mind en- ters into these by a series of corresponding fluid organ- isms, which represent the living or active portion, as the solids represent the recipient or passive. This is but imagination ; yet imagination is the youthful eye of science, and provided it owns to its name, it is an innocent as well as a suggestive power. Therefore we proceed to imagine, that the mind broods above the brain, as the cosmical ether sits above the planetary air, and further, that the mind or spiritual reservoir fills all the interstices of the brain, where however it is determined by suitable fluid envelopes, which accommodate, temper and envelop it until it is brought into ratio with the fixed mechanism of the cerebrum. Hence its solar vibrations are felt in the bodily organism, as light is felt on the earth through the splendid shiver of a medium which the air includes between its parts. And hence there are as many kinds of nervous or cerebral spirit as there are nerves and brains ; for it is the openness or interval! ing of the latter that admits and gives quality or fibrillation to the former. The brain, doubtless, is made with an express view to this recipiency: the fluids, which when entered by the soul become nerve spirits, are also predetermined ; and hence there is the same ratio again between the mind and the nerve spirit, as between the brain and the spinal cord, in that the parts of both are alike, but differing in breadth or degree. But indeed the doctrine of the nerve-spirit forms but one of several problems, which have experienced the like treatment. The reality of whatever is above the senses is questioned by many, and consequently the presence of the supernal in the sensual is denied ; and if the supernal be THE NERVE SPIRIT. 37 visible, still it is degraded by some ordinary name, and the spirit and message which it carries are sensualized and set aside. The thing is killed by scepticism, and then its spirit is easily called serum. It is so with Revelation. A divine mind there may be, but then man, say some, is solid at the top, and lets God in by a self- vibration : there is no open fibre between Him and man. We, however, affirm a nerve spirit of the human race, which is not man's, but God's in man a genuine influx, a word, a revelation. It is just as visible as other books, though often it is not known what it is, because the mind is not known with which it communicates, nor consequently the peculiar ani- mation of the book. We see on this mighty scale what is the use of a nerve spirit, namely, to be immediately pre- sent with the directing mind throughout the organism ; to speak in messages unwarped by the finite faculties ; to be the First and the Last, instead of " sitting above the crea- tion, and seeing it go." Were it otherwise, the government of the world would be virtually committed to man's reason, which would exclude that of God ; for man would have no chart but his own faculties. And so, were the brain a solid, and shut at top, the government of the body must depend upon it and not upon the soul, or only upon the soul, in so far as the brain chose to coincide with its mes- sages. Government is incompatible with such an idea. But on the other shewing, the brain cannot exclude the next higher series, which permeates it in its own right, and exercises a providential and healing virtue upon what is so apt to go wrong of itself. The truth, however, is, that the doctrine we are combating is not in the sphere of the nervous or open system at all : it belongs to the mus- cular department of truth, or that which has both ends closed, and is a solid body. Its spiritual correspondent is 'earnestness,' spasmodic vigor, upon which so many and 38 THE HUMAN BRAIN. such famous men rely for the salvations of the time. We might collect other problems, besides that of the presence of the divine light in the world or Revelation ; and that of the presence of the soul in the body, or spiritual existence, to shew that the doctrine of the animal spirits suffer in the company of great truths ; but enough has been said to shew that deism has dependencies everywhere ; and that besides the vast irreligion of excluding God from the uni- verse, there is a series of lesser impieties and disloyalties of a similar kind, which rob the body of the soul, clip the world close to the limits of air, make man and nature truth- tight, and reduce all things to petty selves, which can choose whether they will have a God above them, a world around them, and a soul within them, or the contrary. We postulate, then, that everything, according to its openness to the sphere above it, has a spirit, or a quasi- spirit ; and when the organ is so constructed for opening as the brains whose first great faculty is openness, when it can take in so much, the capacious influx or gift natu- rally takes the form of a nerve spirit, which is thenceforth the tutelar genius of the system. Further, that every- thing, whether a brain or a science, which is so roofed over that nothing but itself can come into it so thick- skulled and self-opinionated is dead at the top, however it may work reflexly or spasmodically according to the exigencies of the lower life. So much for the spirit within the brain. There is a spirit beyond it, of which we do not treat in this place. Only we remark that the spirit within is the physiological window to the spirit beyond, and that they who do not look through it, cannot admit the soul of man as having any ratio with the sciences of the body. Certainly the soul is not their object ; but woe to them if it have not its witness within their field. Even granting what we have said, the FUNCTIONS OF THE NERVE SPIRIT. 39 nerve spirit will be only on a level with the other fluids, unless it be interpreted by those higher powers which it serves. But what its function is can be told analogically, but not, as yet, otherwise. Thus we may say that it ex- ercises quasi-mind and influence in every part of the frame : that it is an atomic intellect everywhere, capable of repre- senting the state of the body, and a will, capable of setting the organism in imitative movement according to its deci- sions and forms. By it alone can we account for the unity and coherence of the system. For every point of it is a sense or intelligence that shews the frame a model that commands instant imitation. And thus it may be likened to the truths of society, which command obedience by their bare shewing, according to the health of the social frame. Let it be borne in mind, however, that the nerve spirit is different according to the divisions of the nervous system, and according to the nerves of every organ, and indeed every particle, because each is open to the wisdom that it needs. Thus in the nervous system proper it is mind and will : in the liver again it is the mirror and model of the hepatic truths and operations. And so of the other organs. Dropped from above into their lives, revealed to their blood and races, it sets them in the fermentation and discussion of their problems, and on the veritas prevalebit principle, health cannot fail to obey it. It is the posture-master of the solids, and the charioteer of the fluids. We see then how full the body is of eyes how instinct with spirit-like forces, and by the analogies of mental and social life, how irresistible are the causes of harmony, design and coope- ration in the bodily fabric. But were there not such a spirit, there would be no reason, but an immediate dictate of God's will, for the stupendous system which the human machine discloses : that is to say, there would be no wis- dom in the body, answering to that supreme wisdom which exists above it. 40 THE HUMAN BRAIN. And here, to assist our conceptions, let us revert to the current views of the solid pieces of the nervous system. These, as we have shewn before, are all of them of spi- ritual machinery ; in other words, they have the power of dramatizing mental functions. Even the spinal cord acts as if it were a sensible animal, guiding the fingers for example to the seats of pain by its automatic endowments. How much more must the supreme fluid, whose essence is motion and plastic virtue, be capable of dramatizing or representing the powers of the mind and soul, and their ever- varying relations to the microcosm. A fortiori it will act like wisdom and like will everywhere, when its mere channels, wherever they extend, have these quasi-living properties. It is here to be remarked, that we are in the strictest keeping with experience ; that we are simply pos- tulating for the fluid brain the same thing, though in the fluid degree, which physiology claims already for the solid brain. But there is this difference, that the solid brain, or the nerves, are of course limited to the nervous system, whereas the fluid brain, or the nerve spirit, does not end with these conduits ; but when it is shed from the fingers' ends, heart's ends and viscus' ends of the nerves, it can make use of every other structure as its vehicle, and thus import the drama of life, in all its degrees, into the flesh and entrails of the universal body. Agreeably to a com- mon fact, that where a form ceases, its essence, if of true virtue, still passes on, and applies itself to utilities that it could not execute when confined to its bodily sheath. We may perchance be accused of materialism for de- manding such a physical wisdom. So an insect possessing only a spinal cord might accuse of materialism a being possessing the sensual brain, because the latter exhibited this as still a nervous system ; and a creature terminated by the sensual brain might reproach materialism against a being who carried the nervous firmaments one step higher FUNCTIONS OF THE NERVE SPIRIT. 41 in the cerebral hemispheres, because those hemispheres were still nervous system. The insect conception of sense (if the phrase can be pardoned) is doubtless null ; and could the creature evolve it, the nullity would appear in the want of body and structure, in the impression that pure spirit or abstraction comes on at the top of the spinal co- lumn. The brain, however, is a spirit pure enough to the spinal column. And so the mind, organic and in ratio with the rest though it be, is nevertheless the pure spirit of the human brain. The materialism lies with those who make the brain solid, the skull thick, and the mind an abstraction. VII. In conclusion, we may be allowed to say, that the doctrine of a nerve spirit is no new creed, nor ever was un- orthodox until now. The greatest names in physiology are its adherents. But neither did these men see the tubes or the fluid, such as we have conceived it, in the dead sub- ject : a fact which, as Haller says, " shews the weakness of the senses, but has no validity against the existence of a juice or spirit in the nerves." This reason had its proper effect with the great anatomists of the seven- teenth and eighteenth centuries : it shewed them the weak- ness of their senses, and stimulated them the more to use their understandings. They were the original geniuses who laid the foundation of a general knowledge of anatomy that will not pass away, but to which we must recur when we desire to refresh our minds with the first vivid impres- sions that the wonders of the body created upon the finest intellects that ever studied organization. Would it were in our power to bring before the reader the character- istics of these brave pioneers of anatomical knowledge. Would we could reintroduce him to the venerable Eusta- chius ; to Malpighi, the father of visceral anatomy ; to Ruysch and Morgagni, the purifiers of the anatomy of 42 THE HUMAN BRAIN. the schools ; to Leeuwenhoek, who first seized the micro- scope as an exclusive field, and devoted himself to it for fifty years with an eagerness which has not been surpassed ; to Vieussens, Lancisi and Baglivi, eminent alike for sys- tematic knowledge and philosophical genius ; to Bartholin, Verheyen, Heister and Winslow, whose methodical text- books kept their ground in the European schools for more than a hundred years, and who supplied their successors with much of both the matter and the form that exists in the manuals now in use ; to Boerhaave, " the common pre- ceptor of Europe " in the last century, and the consulting physician of the world, who gathered up the experience and deductions of ages in anatomy and physiology, and gave it a new and compact form in that wonderful little book, the Institutiones Medicce : also to Boerhaave' s pupil, Haller, who stands as a mountain between the present and the past, and reflects from his summit the departed learn- ing of seventeen centuries. But their monuments are the living parts of their science. And we must be content with alleging, that these men, with no exception, believed in the animal spirits, and the tubular construction of the nerves ; which as the illustrious Glisson, our countryman, remarks, was in his time " accredited by nearly all physi- cians, and by all philosophers." We now therefore assume that the nerves are tubes, and that there is a special fluid, cerebral, spinal, sympa- thetic, i. e., following in its degrees and divisions the solid pieces of its nervous frame : and the question occurs, Where is this fluid engendered? We reply, that its matrix everywhere is the cineritious substance ; that as the vehicle of what comes down from above, it begins everywhere with the beginning of the bodily order, which lies in the cineritious spheres. The latter shew luxuriant provision for the purpose in the arterial meshes which supply them. CIRCULATION OF THE NERVE SPIRIT. 43 But to pursue this subject would require a treatise on the life of the blood. We shall, however, recur to it in the sequel. But another question presents itself Is there a circula- tion of this living fluid ? Do its centres impel it, as the heart propels the blood ? Is there a cerebral force or a motion of the nervous system ? Or is the brain, besides being solid and exclusive, also stationary and paralytic ? Or on the other hand, if there be any natural force in brains, what is it ? First for the facts. Two motions are already admitted to have place in the head, one corresponding to the beating of the arteries or heart ; the other, to the breathing of the lungs. By laying the fingers upon the open fontanelle of a young infant, the reader will feel the first-named motion. It is the stroke of the heart communicated to the arteries of the dura mater. This is no cerebral force, or proper motion of the brain. As for the second or lung movement, it occurs as follows. When the lungs expand to draw in the air, a tendency to vacuum is created in the chest, which causes the fluids all over the body to rush or to in- cline thither, to fill the threatened void. In short the lungs, besides breathing in the air, quaff down the venous blood from the brain, and suck up that from the body. The con- sequence is, that in inspiration the skull is more empty of blood than at other times. Hence when the brain is ex- posed, it is seen to subside during inspiration. This is the second movement observed, or the effect upon the brain of the respiratory pulse. But neither is this a cerebral force, but a physical subsidence, just as the corresponding rise is merely physical, and results from the act of expi- ration, which retarding the return of blood to the chest, forces up the brain upon this fluid cushion. This, however, is to be noticed, that when the blood leaves the skull during 44 THE HUMAN BRAIN. inspiration, it creates a vacant space which has a function, or which is not vacant in point of use : in short, it leaves room for the brain to expand. And if its real expansion be less in volume than its apparent subsidence, then the brain may be automatically rising at the moment when it is physically falling, in which case the latter movement will mask the former. When the lungs expand, then, there is room for the brain also to expand, and when the lungs contract, there is a physical reason why the brain also must contract. We do not know that experience has gone further hith- erto than to shew the possibility of the movement of the brain, in shewing that it has room or liberty to move. And indeed, if we consider the problem, we shall perhaps find reason to think that this motion, like the motions of other bodies from which we cannot separate ourselves, but with which we ourselves move, must come as a theory whose main case will lie in explaining all the facts. Yet further as to the possibility of the movement, one of the most important truths of physiology lies in the insu- lation of the different systems that make up the body. In point of function, indeed, we have seen that the nervous system itself consists of individual pieces, which can act either separately or in combination. But in structure the whole nervous system is isolated from the rest of the body, though plunged or let down into it as into a well of flesh. The nerves end in loops or otherwise, but are not solidly continuous with the other tissues. In short, the nervous body floats in the fleshly body as the central yelk of the micro- cosm. We may liken it to a sword of lightning in an elastic scabbard, which scabbard is perpetually elongating and gath- ering itself up, but is always full of the subtle and separate fire. Movement is compatible with this state, nay, is per- petually stimulated by it where the whole subject is mov- THE MOTION OF THE BRAIN. 45 ing ; just as the non-continuity of the planets with each other, and the interstice between these cosmical atoms, allows and necessitates their courses and revolutions. It used to be thought that nerve joined and became continu- ous with muscle and vessel, in which case thorough motion of the nervous system would not have been possible. We now find that it only rests upon these lower parts, of course with an interval, which allows of thorough or loco-motion ; and we know, therefore, that thanks to the breathing move- ments, the nerve animal requires to plant its foot afresh with every inspiration, or it would slip down, and to raise it up again with each expiration, or the body would shock it in its ascent. If the office of the brain lies in the distribution of the cerebral fluids, then the orderly administration of these requires a regular motion, or in other words, a rhythmical action. The heart and the lungs are evidences of this in the lower compartment. Their action is not an incorporeal vibration but a measured expansion and contraction. The blood cannot run to its destinations without the physical heart, nor the nerve spirit gain its ends without a propul- sive power in the brain and the other centres. And more than in the case of the other organs must this motion be- long to the brain itself, or be automatic, or the supreme organ would have no function of its own. It cannot, then, be derived from the heart or the lungs, as we said before, although no doubt these organs, and all the rest, are mea- sured by its liberties, and concur to make its play and N playground secure. In the body, moreover, we find that stated motion is a condition and a sign of life. Does he breathe ? or expand and contract, is synonymous with, Does he live ? Now, as we shall have occasion to shew in the next chapter, the universal movement of the body produced by the lungs, is 46 THE HUMAN BRAIN. the condition of all particular movements, muscular and visceral. For a body already in constant motion is easily guided about, deflected and managed for particular motions ; but a body at rest absorbs a large amount of force before it can be moved. Thus if the whole body were not a per- petually-moving, breathing or living thing, there would lie so much dead weight on the feet of every action, and life would be clogged by matter. But as it is, the incar- nate iron is hot for the strokes of the volitions. Nothing can be more familiar than this, that motion is easy, and rest uneasy, to those who are already on the move. Now we may reason by a great syllogism from the man to the body, from the body to the lungs, and from the lungs to the brain : nay, and also from the brain to the mind. For example, if the brain were stationary, no thought could enter it without lifting it first : there would be no prepared- ness for thought, which is essential motion. Whereas, by a constant rhythm taking place in the whole mass, the mind requires to create no motion, but simply to act as a modifying, directing, or exemplary power, in order to produce all or any motions as states or details of the gene- ral swell. Thus, the rapid admission of thoughts requires a moving or active brain, just as does the distribution of the nerve spirit, which is a river of bodily thoughts. It is indeed admitted that the brain is an active organ, so far as it undergoes the fleeting states of thought. These are the modifications of its activity, the ripples of con- sciousness. But what we are contending for is nothing less than a tidal cerebral sea. For as the thoughts, emotions and bodily actions fall upon the lungs, and produce the varieties of the breathing, because the breathing itself is there first as an impressible atmosphere, so do the thoughts and volitions produce the varieties of the animation upon the basis of an already-moving or animating brain. The THE MOTION OF THE BRAIN. 47 temporary waves of thought, are but the surface which comes into our light : there is a deeper heaving besides, organic as the body, which has its own currents and shores, and is constant like nature, obeying the progress not of the moment, but of the lifetime. Its spirits are not tran- sitory like ours, but night and day they do not sleep until death overtakes them. The argument we are discussing is, however, theoretical ; a condition which is common to the truths of the exact sciences. The solution of the problem in this light will depend upon whether the brain or the mind is accepted as the central truth. If the mind be taken as the fixed point, the principles of thought will have their just power, and the brain will be seen to revolve around the mind, and by its revolutions, or expansions and contractions, by its mov- ing up to, or away from, the mind, to produce the times and seasons, the warmth and cold, of human thought and will ; and as the variety of states will in this case depend upon the brain, and the brain is a physical organ, the motion will not be a mental or ideal, but a physical motion. In other words, if the brain is physical and not mental, then what seem to us to be mental motions in the brain are really physical motions ; and in this case an open mind signifies an open brain, an active mind a moving brain ; and human language, or the voice of common sense, con- tributes abundantly to the illustration of the organ. For the predicates of mind can then be assigned in a bodily, but not in a purely mental sense to the brain. If, how- ever, the mind be regarded, as by the materialists or cerebral Ptolemaics, as the meteor and wandering lamp of the brain, then a mental, or in other words an inexplicable influence or movement will account for or rather accom- pany the cerebral states. But for ourselves we cannot think of the mind as an ignis fatuus in the swamps of the cerebrum, but as a distinct and superior organ, which has 48 THE HUMAN BRAIN. the cerebrum and nervous system between it and the body. But now if the brain has thought movements, there must not only be a law of succession in these, a beginning, a middle and an end of each ; in other words, an expansion and contraction ; but also, as we shewed before, a ground swell of motion on which they depend, and which if it were not given by nature, no thought could lift the slug- gish mass in time enough to give a thought-like action. But after all, the question of motion is subordinate to the question of what the motion is ? To shew by rational arguments that the planets move, without demonstrating their courses, would leave the theory not only short, but curtailed of its strongest proofs. And to raise the problem of the cerebral motion without shewing its 'times and rules, would be to rest in an embryo law, and to fail of the sup- port which the body itself ought to proffer of so important a truth ; if a truth it indeed be. In turning to this new aspect of the question, we find in the body that there are already two movements, which we will designate the systemic and the sub-sys- temic ; the movement of the respiration is the systemic, that of the pulse the sub-systemic. The breathing of the lungs is the largest revolution of organic life that the body executes ; the beating of the heart is but a satellitial mo- tion freely included within the former. And if organic life or motion be concentric, a strong presumption already arises, that the animations of the brain, according to the statement of Swedenborg, are coincident with the respira- tions of the lungs. Moreover we have already seen, that when the lungs inspire, the brain has room and invitation to expand, and that when they expire, it receives an ad- monition and pressure to contract. If the brain be im- pressible at all, and if its motion be physical, it can hardly fail to comply with these opportune times. But again the motion of the brain is, or may be, volun- THE MOTION OF THE BRAIN. 94 taiy, and the volitions as we know can play also upon the respiration. Nay every muscular movement however eccentric, is based upon the fixity of the respiration as a central stoma. Whence voluntary breathing becomes ana- logous to willing, and we are said to breathe the actions which we strongly intend. This points, in the next term of the reasoning, to the conclusion that animation, or the common function of the brain, is analogous to common breathing. For the argument stands thus, the mind of the brain, in falling upon the lungs, controls their states, and makes them voluntary ; and in descending into the muscles, it always enters the lungs at the same time, raising up in the breath a central air or tendency, corresponding to the limbed tendency in the muscles. The motion of the mind of the brain, therefore, is voluntary, and the breathing can be voluntary ; and if the brain and the lungs coincide in their extraordinary motions, is it not feasible that they coincide in their ordinary motions ? This is the more conclusive and exclusive, inasmuch as there is no other viscus but the lungs manifesting a peculiar motion, upon which thought and will play. Now these are, physically speaking, the brain playing upon the lungs, or in other words, the brain moving to move the lungs. But secondly, we affirm that the correspondence is not merely general, but precise. It will be remembered that we are not now arguing the question of the motion of the brain, which we consider for the present established ; but the rhythm which the motion follows. And we proceed to remark that there can be no doubt of its coincidence with breathing. The cerebral motion, the movement of the mind of the brain, is represented in the movements of the lungs. We all infer the manner in which a man's brains are moving, from the way in which we see his lungs mov- ing. If we see deep breathing going on during conscious- 50 THE HUMAN BRAIN. ness, we know that it means profound cogitation; slow breathing concurs with deliberation, meditation, &c. And so on through a thousand states of thought and emotion, in which we reason instinctively on the principle of a correspondence between the motions of the brains and lungs. And diseases augment these phenomena. Ster- torous breath signifies an oppressed brain ; hurried breath in fevers, a hurried state of mind. And so forth. We take no similar indications from the heart, or any other organ but the lungs, which represent all visceral locomo- tion, as the muscles represent the locomotion of the out- ward body. The heart, indeed, is felt by its owner to have a correspondence with the emotions particularly, but it is not influenced perceptibly by the will or the under- standing. In the chest the condition of the nervous system con- firms what we are advocating. For the great nerves run through a space governed by the pumping of the lungs, and their external coats, of necessity, are drawn outwards when we inspire the air, and are pressed inwards when expiration occurs. So also in the spinal cord. As these parts are continuous with the brain, the effect also is con- tinuous ; i. e., the brain is subject to the reciprocal invita- tions and pressures of the lungs. The nervous motion is, notwithstanding, automatic ; and if its expansion be in- vited, or its contraction promoted, it is only that these happen as the true circumstances of the freedom of the brain. To carry the thread into another sphere, but one which is included in our plan, would it not seem that one of the first desiderata in brains is movement, and in all further progress, a history of the movements of brains ? not only a history of fitful, but of organic and providential thought. In the realm of science this translation of our position THE MOTION OF THE BRAIN. 51 is indispensable ; the pistons of aspiration and practice go up and' down, the brain opens for life, and opens the body for work, as truth after truth is brought in and converted for the moving intelligence of man. In the sphere of conception and philosophy the same strokes of the mental engine are perceived ; and the more we contemplate them from the point of a Providence or a plan, the more regular they seem ; the more rhythmical thought is found to be ; the more its elements are measured; and the more the stirrings of the great brain concur with the tune of the stars, which measure the ages in their vortical tread. In fact the idea of a plan or a relative Providence, cannot subsist, without insinuating to us the oneness of all the motions of the brain, and their combination into a rhyme coordinate with the poetry of every universal law. Thus to look at them from above and beyond the organ, shews them all as one motion, coincident with the wants and aspirations, or in other words, with the breathings of their subject, man. And so again the outward and inward wants, the thoughts and the breaths, are married to each other. In isolated thoughts we cannot recognize so much ; but the thought of epochs suggests a fate of thought, a movement involuntary as the respiration of sleep, in which the parts succeed each other as breaths, though full of the special will and intellect which are the life of the brain and the race. For the last part of the subject, or the function of a brain moving or animating in this wise, it will lie in the distribution of the nerve life according to the principles and forces of the soul, and in the mind, of the under- standing and will, considered both as powers and organs. If the fibres and nerves are the roads of life, and if the globular heads of the nerves are its stations and reservoirs, then the expansion and contraction of these in the times D 2 52 THE HUMAN BRAIN. of the breathing, amounts to the constant injection of life into every portion of the body, at the moments when the body itself gasps or opens or wants to receive them. And this takes place in successive moments. Thus organic thought and will are present everywhere with a breathing or animating motion : a stimulus superior to nutrition is poured into the frame ; and all this, with no thought on our parts. But on the other hand, during our intervals, and from our states, of consciousness, the distribution of the cerebral fluid is varied, just as the same consciousness varies the supply of air, or the evenness of the pulmonary respirations. And by the coincidence or synchronism of the latter with the brain-movements, the unity of life is maintained : the lungs dilate the frame to receive, while the nerves dilate to give. Thus the respirations of the brains and lungs are the beginning and end of the animal system, which therefore is poised in freedom like the planet, not supported upon a tortoise of dead matter, but swimming in double tides of motion. The quantity, colors and kinds of the animal spirit thus inflowing, measuring what it is by what it does, are greater than those of all the other fluids ; for it not only fills the brain and nerves, but occupies the interstices and the posts of difficulty throughout the body. The good things which seem to be so scarce that they are almost invisible, are yet at the last the only things, are all in all ; and this which is the least and most hidden element, is in its volume necessarily the greatest, and the all-embracing. Whatever is more than gravity and rest comes forth from its active lightness It is the life of the blood, the strength of the arm, the fire of the eye, and the bloom of the skin. Each intellectual city, each convolution of the brain, nay every spherule, sends forth its characteristic emissaries, possessing the body with the varied spirits of the head. THE SPIRITS OF THE BRAIN. 53 Dryads and naiads, muses and furies, gods, goddesses and heroes in endless populations, throng the columns of this old pantheon, whose last mythology is yet to come. The starry dance, the music of the spheres, the astrologic influences, the experiences of the supernatural, are but aims to express the perceptions and properties of this immortal nature which lives on the seeds of the sun. By this liquid flesh it is that the soul sees its face in the rushing river of creations, and feels the issuing universe, and the finest tremble of the stars. In this wisest vest of nature, it sits at the feast of nature's wisdom. This is the panic element of man in unison with the panic of the world. Could we see an apparition of the nervous spirit, waving and sweeping with luminous shoots into the curves of the body, we should behold a form complete in its de- tails ; a design exceeding the mortal building ; solid as flesh to the eye of the mind ; perpetually springing into life ; yet though plastic, stable to its ends, and quicker than thought to execute them : shadowy, or terrible, to the senses, but safe reality to the soul. Then should we see, but according to our insight, that there are motions and mechanics which are the likeness and habitation of life, sense, passion, understanding ; and we should know by solemn experiment, that our organization is an im- perishable truth which derides the grave of the body. But if the brain is not shut but open, not empty but full, and if the organ of thought and will is not stationary, but moving ; if this is the first nature by which it answers to those ever-moving creatures : and if it operates, not by physical nothings, but by tides of animal life : further if the motion be most regular, and the down-rush con- stant then there must be a definite channel laid down, or a nervous circulation. Of this circulation there are- three elements, 1. The influence or influxions of the im- 54 THE HUMAN BRAIN. material mind and soul, which come down as rays from a solar brain above the body, and are the order and supreme agent in organization. 2. The array of accordant agents or imponderable spirits of physical nature, which are the contribution of the world on its bended knees to the soul. And, 3. the highest animal juices, the cream of the body, proffered in the vehicle of the first blood of the heart. Thus the brain confers on the organization, first, thoughts and plans, wise as the soul, loving or unitary, and irre- sistibly organic : secondly, the cosmical and physical kins- men of these, which are dramatically what the first are really, or which confer mundane efficacy upon the prin- ciples of thought. And thirdly, the body of the body, or the primal incarnation. These three, or life, nature and body, are one in the nervous spirit. In a word, the nervous circulation, with every stroke of its spirit pulse, distributes the essential principles of thought, force and organization : and the body, therefore, is full of eyes or ra- tional light ; full of understandings and judgments ; full of stupendously reasonable deeds ; and materially an incar- nation of the soul. This is what the brain is empowered to give ; the brain being the common centre of gravitation of the three powers of mind, body, and universe. The circulation then of the brain would be threefold ; or that of all nature into mind and soul, and vice versa ; that of the Kosmos into the brain, and vice versa ; and that of the body into the brain, and vice versa. But as we are treating of the body, we can only dwell on the lowest of these circulations, though the brain modifies the other spheres in the same way as the body modifies the brain. Now as to the bodily nervous circulation, it comes, like the rest of the secretions, from the blood, namely, that of the carotid arteries, whose fine twigs, inserted into the cortex, are the venae cavse of the cortical hearts. The se- THE CIRCULUS VIT^E. 55 cretion is there received, and meets the thoughts which build, and the magnetisms that clasp and cement it : by the contraction of these cortical hearts it is propelled all over the body into the terminal loops, from whose fingers' ends it flies with its ministering spirits, and is again re- ceived into the blood, whose life it constitutes, and which it incites and forces to construct the body on the principles of the wisdom of the soul and brain. Thus the nervous circulation has solid channels only in the highest or proper sphere ; in the rest it runs through the fluid blood. More- over this system has its excretions just like the vascular ; in the ventricles of the brain ; in every interstice of the nerves : so that when it comes into its loops, it has put off the body it assumed, and is again received into the red circulation. Thus the aged spirit of the nerves becomes the youngest life of the blood. This is necessary to the continuity of existence : for every end is a new beginning in the vortex of our providential universe. We now then see that without this openness of the brain, this animal spirit, this motion of the brain, and this nervous circula- tion, the soul could not be incarnate, nor the body animate ; nor could the latter for a moment preserve that unanimity which gives it coherence, and constitutes it the ideal not only of physical, but of all social unity. If, however, there be other principles of explaining these things, then we ardently desire to know them. But expla- nation must be attempted, for the people is weary of hear- ing that they cannot be investigated ; and from men too, whose powers have no preeminence to entitle them to set limits to the faculties of any new child who may be born into the world. We know of but One whose rights went to this extent, but His voice was, " Seek, and ye shall find ; knock, and it shall be opened unto you." It will not be difficult now, on these principles of motion, 56 THE HUMAN BRAIN. to discuss the problem of the respective uses of the cere- brum and cerebellum. And in order to approach the sub- ject we would make the following remarks. The nervous system is a casket of stimuli of various orders superadded to the body : the bodily parts or animals are constructed mechanically without it, and only wait to be ordered into action by its spirits or voices. These spirits give different instructions according to the chamber whence they issue. The voice of the spinal brain to the body produces mimetic perceptions and motions ; states that seem to be alive, for they act life perfectly. The spinal cord then endows the body up to the point of representing life by accordant mo- tions. The voice of the sensual brain fills the body with sensual perceptions and sensual motions : it raises it up to the enjoyment of the cunning of the senses. Whatever is required for their gratification comes from this source in the shape of emotions and organic instincts. Under its influence the organs and viscera are like the animals hunt- ing for their prey ; and each takes what it wants from the common stock, as the living creatures take their pabulum from the earth. The organs would indeed do this without these sensual brains, but only as vegetables in a kind of wooden representation. Finally the cortical surfaces, or the ganglia of thought and will, by their spirits diffuse their own light through the body, so that all and singular the organic acts and processes are done with the tincture of a higher than animal wisdom. All these would be done by the senses, but then their essence would be different ; as the essence of bee architecture is different from that of human, though not different in its mathematics. Thus the human body is all obedience to these three degrees of nerve-spirit, and if it stopped with the reflex actions, it would be but a dramatic mask, involving no wisdom beyond that of supreme mimicry : and in the same FUNCTION OF THE CEREBELLUM. 57 way, if it stopped with the animal brain, it would still involve no wisdom beyond the perfect adaption of sensual means to sensual ends. It does not however stop here ; but even its theatricism and animality become instinct with reason and will. And the like process which impregnates sense and motion, as we know them, w T ith reasonable thought and voluntary action, strikes the same through the secretest parts of the organization, and makes the blood rational, and the bile rational, and in short makes the whole body human by the radiation of that which alone is human, from above its summit. But now, in the human being, these upper states are not only fitful, but also intermitting or regularly periodical. Sleep comes to all, and takes away impression, sense ancP understanding, as well as motion, impulse and will. And in this respect waking too is full of somnolency, or abro- gation of our superior powers. If then there were not some provision, sleepless and permanent, to keep us up to the human level, the answerableness of the body to the soul, and consequently the animation of the former, would perish many times every day, and certainly with the first slumber. For if all that is animal really died do\vn to the surface of the earth in the seasons of sleep, the body, heavy mass as it is, and belonging of right to the ground, would be in the clutches of the grave, irrecallable from its congenial gravitation. To prevent this, there are two brains, a constant and an inconstant, but each correspond- ing to the other. The cerebellum does unconsciously and. permanently whatever the cerebrum performs rationally and by fits. The cerebellum follows and adopts the states induced by the cerebrum on the organization, and holds the notes of the ruling mind. Thus immediately after sleep, the motions of thought may begin at once, for they have not been organically, but only consciously suspended. D 3 58 THE HUMAN BRAIN. We see this in an image in the lungs. If the latter were voluntary organs, the man would cease breathing so soon as he fell asleep. But they are both voluntary and invo- luntary, the latter when not the former; and the movement is always proceeding, night and day, so that it has not to be created, but what is an easy matter, merely directed into the voluntary channels. Similarly so with the organic motions of thought and will : these are always going on, and merely require direction, not creation, by the cerebrum. Concordantly with this we can explain sleep, and much that occurs in sleep : e. g., the fact that our thoughts and judgments are marvellously cleared and arranged during that state ; as though a reason more perfect than reason, and uninfluenced by its partialities, had been at work when we were in our beds. This also, that our first waking thoughts are often our finest and truest ; and that dreams are sometimes eminent and wise ; which phenomena are in- compatible with the idea that we die down like grass into our organic roots at night, and are resuscitated as from a winter in the morning. And it must again be adverted to, that this would not suit 'the Grand Economist ; for after nature has ascended to one plateau of life, represented by a day, she will surely not tumble down into the valley because rest is needed, but will pitch her tent, and make her couch upon that elevation. We conclude then that the cerebrum is the brain of the mind, arid the cerebellum the corre- sponding brain of the body ; and as during sleep the cere- brum is a body, the cerebellum at such time is the brain of the cerebrum also. It may be added that the cerebel- lum, in adopting the mental states as her standards, is also a register of the mind, and converts actions into habits, _or in other words, into structures. And thus the whole man, genius, intelligence, logic, sense, skill, action, may be called instinctive or given in nature, if we look at him FUNCTION OF THE CEREBELLUM. 59 from this providential side, whose organ neither slumbers nor sleeps. Man then, as we see, is captured in sleep, not by death, but by his better nature: to-day runs in through a deeper day to become the parent of to-morrow ; and the man issues every morning, bright as the morning and of life size, from the peaceful womb of the cerebellum. If these views be carefully weighed, it will be found that they harmonize with the facts of the case, and not less so with experiments and vivisections. For if the har- monies of the frame, and the undercurrents which make its fitful states normal, depend upon the cerebellum, so also do the harmonies of motions, the production of which has been supposed to be the office of the lesser brain. If we are right, the removal of the cerebellum ought to leave for a time the conscious machinery and powers, but fitful as thought, sense or fancy : the body ought to change like a mind, now acting in part, now ceasing, and in short in everything capricious and partial, as might be expected when the man or animal was given up to his own wisdom, and had lost his organic providence. On the other hand the removal of the cerebrum ought to leave everything, and the power of everything, minus consciousness, and therefore minus the stimuli and beginnings of action which come through consciousness. This of course where no other parts were injured. We may also infer on these principles, that where the condition of animals approaches sleep or inaction, there is less need of a cerebellum, for these creatures are already on the ground, and compara- tively secure. But where the least absence of mind might cause a fall, there a permanent organic provision is required, in the shape of a larger cerebellum. For we may lay it down as a formula resulting from all now said, that the perpetuation of high motion, composite motion, or harmony, 60 THE HUMAN BRAIN. is the function of this organ. On the same principles again it becomes probable, that the genital function assigned by the phrenologists to the cerebellum is founded upon truth. And now we leave it as a problem, whether there be, or not, an analogous provision for the sensual ganglia, to preserve the level of sense when our senses are annulled ; and what the organ is? And the question may be repeated for the spinal cord also, with the insinuation, whether the sympathetic nerve be not its cerebellum ? For we regard it as certain that the naturalness and economy of force, and the accumulation, are secured everywhere in the bodily system. The above function of the cerebellum has its analogues in every sphere. We see it in thought, which has two elements, viz., that of consciousness and personal energy, and that of natural growth, the first corresponding to cere- brum, the latter to cerebellum. And these are often dis- parted in individuals. In some there is a preponderance of cerebral mind ; their thoughts move quickly, but flightily ; as we say, there is a want of balance ; a want of body or nature in their minds ; a defect of organic or cerebellar faculty. Their mental movements are random and inhar- monious ; they do not retain or accumulate wisdom even repetition does them no good ; but they strike out afresh in the vagueness of discourse, with no nature to back them. They have all the senses but common sense, which is the spring, incarnation and harmony of them all. In philo- sophy or collective thought the same division is visible. Philosophies are made, and also they grow ; they are both cerebral and cerebellar. Universal tradition, the largest pressure of common sense, is the philosophical cerebellum. And here we see what complete experiments of vivisection have been performed ; and what the result has been in philosophies that cut away the nature, accumulation, force FUNCTION OF THE CEREBELLUM. 61 and body of preceding thought ; which extirpate the fixed organon of human growth, or the traditionary cerebellum. Dr. Carpenter, speaking of smaller things, describes to the letter the effects which follow : "It does not seem," says he, "that the animal has in any degree lost the volun- tary power over its individual muscles : but it cannot com- bine their actions for any general movement The reflex movements, such as those of respiration, remain unimpaired. When an animal thus mutilated is laid on its back, it cannot recover its former posture ; but it moves its limbs, or flutters its wings, and evidently is not in a state of stupor. When placed in the erect position, it stag- gers and falls like a drunken man ; not, however, without making efforts to maintain its balance"* Such is the want of health or wholeness that comes from rescinding the natural brain that lies behind us, and beginning the intel- lect afresh with each passing day : for where there is no vis a tergOj there is no direction either in physics or meta- physics. And the sphere may be changed again with the same result. Law-making, which is the political cerebrum, stands in a similar ratio to the public morality, which is the political cerebellum ; and where the latter is ignored, political vivisection is performed, and constitution- makers repeat Dr. Carpenter's phenomena on the scale of nations. And even in the highest sphere, where the cerebrum is termed prudence, and sometimes wisdom, and the cere- bellum is providence, we see the same thing. Here the vivisection is frequent, and the results very confirmatory. We see the quirks of men whose actions, vigorous enough, are. all tumbling to pieces ; spiritual staggering and drunk- enness ; a positive sense that there is no God, but that man is the manager ; and the like aberrations. All these * Manual of Physiology, n. 912. 62 THE HUMAN BRAIN. instances are in the series of the cerebellum, and prove the universality of its functions. Man is in the leading- strings of God and nature, and what is greater than him- self, to the end of his career ; he is as a little child, whe- ther he benefit by it or not ; and the sovereignty of the things above him is represented by an organ or envoy from the everlasting, planted in his own head ; and which, as we have now sufficiently said, is the cerebellum. But it lies unobstrusively underneath the cerebrum, because its guidance is nocturnal and unseen ; and where it concurs with reason and will, it delights to seem to be their servant and not their master. When therefore the cerebellum or its similars are abstracted, the result is, motion and no harmony, progress without balance, thought without com- mon sense, art without nature, philosophy without huma- nity, freedom without a career or destiny, and prudence alien to providence. In constituting this little series, we seem to hear the whisper of a reason why our own age has no revelation concerning the function of the cerebellum. A word with regard to the usage of the brain. This grows with our years. At first all is impression and con- vulsion : very little cerebral exercise concurs with this state. Then all is sensation, and action gratifying sense ; and the cerebral hemispheres are called into play in a more important degree. Lastly comes the rational period, mixed or marred with the others, and the brain movements are directed more finely to suit the new demands. The mind moreover handles the brain as the brain handles the body. At first the thoughts are little better than confused impres- sions, and the rational actions like sensual or spasmodic states. But by degrees the will gets into the cortex, and the understanding also, and mental continence is established. The brain sits and notices, and stands and runs, as its limbs are directed by the voluntary powers. It becomes to the USAGE OF THE BRAIN. 63 full locomotive through a host of fears, trials and falls. Every nerve muscle now comes under control, and the brain enters on the command of its position. Learning to think appears to be analogous to learning to observe ; and learning to will, to learning to act. Hence a good edu- cation would enable us to use all parts of the brain, as a fine gymnastic system calls into play all and unwonted parts of the body. But let the education be as good as it will, there is still a difference in brains, and one can do feats which another cannot attempt. The brain, however, is not the limit but the vessel of the mind, nor do the facul- ties of one sphere necessarily argue those of the other. This world's idiots may only be taking a long natural rest, to fit them for the activities of another station ; where the brain cannot be a chariot to ride in, it is still a bed to sleep upon. We have thus taken notice of some leading problems respecting the brain, dismissing many others ; but still there are matters of importance on which a few words may be said. And first as to the use of the two symmetrical halves of the nervous system. This, we believe, is a deep problem, and capable of a large superficial reply. Have not all things two sides, and must not the brain and nerves image and use the doubleness of universal nature ? Man has two halves, respectively called the male and female, and the body has two, in its right and left sides. Action is the function of the one, and passion, answering to action, is the function of the other. The left hand steadies the object upon which the right hand works. The woman constructs the material groundwork, the home, from which the man sallies, and to which he reverts, as his centre of operations. The one brain holds the object of thought, while the other brain works upon it with active power. This function of the two sides is a peculiar repetition of that of 64 THE HUMAN BRAIN. the cerebrum and cerebellum, without which consciousness would not hold, just as the male sex without the female would be a power without a fulcrum, a wanderer without the strength of home. Principles cannot be applied with- out a special envoy of their own, and the cerebellum must have the weaker sex or better half of the cerebrum in its interest in order to manage the cerebrum aright. If the reader consults his mind, he will find that in one and the same operation the process of steadying the grasp of thought concurs with that of exercising its active movements ; that his soul has two hands ; and these two processes or hands, widely different but united, are suited in the twofoldness of the cerebral lobes. But what is more, the two brains decussate or copulate, and the right head is married to the left body, and the left head to the right body ; and this crossing of powers, whereby active and passive are not only collateral, but embrace, not only symmetrical, but one superposed upon the other, is a necessity for action and thought, considered as mental fruitfulness. The de- lights of harmony would not be felt if the two brains did not thus combine, nor would the brain have a circle in itself, unless each half had the support of contact with its partner before going forth into the body. Furthermore, we have noticed in the nervous system a reference to something beyond and above, which soon lands us in the mind, as the first permanent station. Thus the feeling of the fingers conducts us anatomically to the spinal cord, in the centres of which, and not in the fingers, the sensation lodges. The cord at once refers us to the base of the brain, where sensation has its proper home. We know, however, that it is in the cortical centres that that attention lives, which is the inner sense, or the owner of sensation. These cortices, however, are dead and ma- terial per se, and thence the reference is straight to the WHY THE BRAIN HAS TWO HALVES. 65 mind, as the first organism that appropriates sensation, and calls it really its own. We stop here, not because the journey is done, but because the day of thought is spent, and our science wants a rest. Thus one lesson of this system is the unselfishness of our organization, and its recognition of a hierarchy which has no top save in that which is more than body, and of supernatural endow- ments. And in the downward series, running from wills to motions, the prime movers are as much above us as the original feelers in sensation : a superincumbent organism to be called spiritual, and which makes itself away to God with treble velocity of unselfishness, must be sup- plicated as at once the original arbitrator of will, and the last receiver of the thoughts which come from the world under the dresses of sensations. This system, however, whilst we think of the bodv, is a land of mountains, from which the whole microcosm is visible. It rises white, with its pillars of alabaster, from the blood-lands of limb, heart and liver, and comprehends wider scenes as steep after steep is surmounted. Its ele- vation is measured by function, which gives the altitude over the level of the rolling juices and their shores. The representation of life by the spinal chain is already a summit towering above the flesh. The streams from this, falling upon the machinery of organization, give powers corresponding to the height and force of the descent. The rivers of sensation and impulse, again, descending from loftier tables, have the force of their greater fall, and press sense into parts and functions into which no weaker torrents could gain way. And finally the mental streams, each instinct with the view of the whole commanded from the top, have a power of descent and penetration which belongs to such intellectual rivers, whose sources are as the beads that the sun engenders on the needles of the supreme 66 THE HUMAN BRAIN. hills, heaven-kissing. We say nothing of the cloudy ranges beyond or the spiritual temple, excepting that it too is of a new mountain order, though built out of the firmament, whose waters are above us as below us, and all the rest but currents in their eternal sea. We may here assign two reasons why the brain is at the top ; in the first place, because nature herself is the worship of rank and station under their other names of excellence and power ; and secondly, because the soul is the top of the top, and the brain by its place meets the soul. And as the arts and industries flow down from the brain, and the spiritual waters tend to find their level, so here a force is provided which carries them back, of their nature, when the channels are provided, to the altitude whence they came, or to the feet of the soul : that the life of man may not be wasted underground among his viscera, but may circulate from his head to his head, with- out a drop being spilt from the high nervousness of the body. It is not surprizing in this eminent region that physio- logists, loyal to their heads, have assigned to the brain the perpetual government of the body, or have regarded every function and every structure as but a procedure or emanation from these commanding parts. Indeed on the spiritual or nocturnal side such a view becomes just, for the brain absorbs all the light and power of the system, and is the only noticeable part, or the body of the body. So when the sun ceases to shine, our domestic and motherly ground disappears, and contemplation, facing the vault, sees no longer the opaque earth, but only the ignited planets and the suns of systems, as it were the galaxies of the starry brain. And so with the body also : when its grosser senses cease to overwhelm us, and thought kindles in the teeming night, the body drops away, and RELATION OF THE BRAIN TO THE BODY. 67 organ after organ ceases to shew, until we are left in the presence of a man, standing with luminous feet upon the darkness, and we see the ghostly human form, all nerve, feeling and volition ; the brain as head and eye, body and limbs, founded not upon matter, but like the organic stars on its own sufficient form. We awaken, however, from these altitudes, and find that the planet too, and the ma- terial body, are things in themselves, nay, are our mothers, and deserve our best consideration in the homely way. But the organic relation of the brain to the body gene- rally, has not yet been well made out. It is clear that the brain is the engine of the mind, and that the other viscera make up the body, which seems to be nourished on its own account. This however does not explain the immersion of the one within the other, or the subjection of each to the necessities of each. But surely if the body gives the brain substance, the brain gives the body what it has to give, namely, brains. In this case all the pro- cesses, of nutrition, circulation, secretion, &c., must be controllable by the brain according to its perfection ; and that this is the case we know from the emotions which always and involuntarily transfer the state of the brain into the visceral lives. Convivial joy, the brain's joy, makes the stomach do double digestion with no harm to itself. Energy, brain tension, fires the muscles to feats that muscles never meant. Other passions scourge the liver or the kidneys into speed of manufacture quite be- yond their proper powers. The function of the brain then to the body is one of forcing or culture. The brain makes no clod of the body, no drop of the secretions : it makes no seed that the body grows. But it is the husbandman of the corporeal farm. The farm may go wild, and it is still something, though then called a desert. And organi- zation may subsist without brains, but it becomes more 68 THE HUMAN BRAIN. and more tangled, lower and lower, until you cannot say that it is alive. The ratio of the brain to the body is that of man to the planet. The planet is ready-made ; every stone, plant and animal, night and day, the greater and the lesser light, are all there, and could not be created by us if they were not. But man comes, the brain comes, as the cultivator. He is set there to have dominion over all ; to be the image of the wisdom who made all ; to spread himself as a head over all ; and to modify all, as the last result or the secondary soul of all. Therefore until the brain has penetrated every viscus and function, it has not cultivated the body, as until man has grasped the climates, and forced them through their products and exotics, he has not cultivated the earth. The relation of the brain then to the body is, as the cultivator of the fields, originally wild, of nutrition, secretion, excretion, and the like. The cultivation begins so soon as the emo- tions of the brain begin, and every state of the brain plays in good or bad husbandry upon the brute or visceral powers. But the brain could do nothing of this, if it were not itself among the natures that it commands. For what commander can speak to his soldiers unless he be a common man like themselves, though an officer to boot? And if man be not the supreme animal, the lion and the lamb par excellence, how can he wield the animal tribes ? And again if spirit have not all that matter has, how can the soul govern the body? Now we have shewn in detail, that the brain, as commanding organ, possesses the attri- butes of the lower organs in a superlative degree. We have shewn that it is the heart of hearts, for it receives from the body and the universe a spiritual blood, which its cortices pulse forth in infinite streams throughout the frame. We have shewn that it is the lung of lungs, for RELATION OP THE BRAIN TO THE BODY. 69 its animation is the breathing of the soul in the all-com- municative ether. We have shewn that it is the stomach of stomachs, because of its bold chymistry in the prepara- tion of the food of food, which is the nerve-spirit. It is also the gland of glands, and the muscle of muscles, for it secretes the purest of juices, and obeys the beginnings of the motor force. Aye, and it is the primal womb of life and thought. In short, it is the body over again, piece by piece, with a truth befitting the brain. Hence, again, comes corroboration of our views, for we now perceive that we have assigned functions to the brain, of opening, breath- ing, moving, circulating, and the like, which are indis- pensable to its maintaining relations with the similar functions of the body. In short, we find that our deductions are but the claim of a common nature, as it were a common humanity, between the brain and the body. The brain, however, we must remember, is unmeasured by the body, and its attributes are peculiar, and not to be named by low names, excepting for the sake of illustration. With all these advantages, however, of a community of nature and aims with the body, the brain could still do nothing, if there were not a physical motion in the body corresponding to the mental motion in the brain. If the body did not conspire or breathe with the brain, the me- taphysical force which alone the brain per se possesses, could not be earned out. So, if the force of the seasons did not concur with the force of the cultivator, husbandry would be impossible. And so, if the moving disciplines of an army were not unanimous with the commander's voice, military operations could not exist. But we have said enough on this subject, which concerns the seconding of the fine brain thoughts by the powerful physical lungs. The result of our observations hitherto is, that the brain opens the body to new influences, or gives it animation, 70 THE HUMAN BRAIN. and weighs upon it with the pressure of numerous changes or reforms ; causing it to follow the mind, so far as the latter consists in the brain, through its vicissitudes. A similar animation, as we have seen, is introduced by man upon the earth, which he is born to subdue, and to recon- struct upon his own wants and ideals. By this means, for example, the inanimate ground is covered with waving vegetations ; the vegetable kingdom is compressed by the animal, which browzes down its increase, and serves as a partial end to arrest its exaggerations ; and all together are braced round by man in girths and limbs of muscular arts, upon which sciences and volitions directly play for tightening the world to human aims, and carrying it through those revolutions of culture which are its aspects towards our wants. In this respect the trees are not in- animate, nor the beasts without progress ; but they breathe and walk after man down the line of ages as after Orpheus in the days of old. Their proper brain, the genus homo, takes them along with him, and they become what he makes them, or are as he leaves them ; as God has ordained. The last part of our theme has yet to be written, or the comparatives and affinities of the brain. And here we may state, that we extend the province of comparative reason- ing, and if the reader pleases, of comparative anatomy, above the human brain as well as beneath it. And we hold that the brains of the creatures larger than individual man are truly illustrative of his little brain, whereas ani- mal cerebra are but falsely or negatively illustrative. By the creatures larger than man we designate societies, na- tions, races, or the individuals who cultivate the globe of history. The bodies of these are definite, fibrous, and in- dividual, like animal bodies : they are mechanical also, though in a higher range of mechanics. HIGHER ANALOGUES OF THE BRAIN. 71 In the second consideration of the individual man, the brain is his genius that which fills him with spirit, makes a truth or aim into his virtual intellect and will, and pours luminous rivers of these over his works. This punctum vivens of his mind animates the rest, and radiating its ideals far and near, irritates his apathies to death under hot arrows of zeal. This genius creates and then concurs with his wants ; and the two together, or his life and his necessity, animate up to the shape and point at which determination can have actions done. These brain attri- butes, absent in none, are brilliant in some men, who take the name of geniuses on that account, and their deeds, by a fated fortuity, are treasured by their fellows as a common interest, though of no more than individual growth. These are the open men of their time, who hinder God the least : more rays shine through them than through the rest : you cannot say what their genius is, apart from what it shews and does, unless it be a natural road from heaven to earth : influx and the fluid kingdoms are their substances, and they know that the solid world is fuel laid up against the day of heat; also that truths and ideals are kings and priests, whose mortal namesakes, visceral and vegetating, are clay as in the potter's hands when that day comes. Their private thoughts seem the wants of the time and the schemes of societies ; they are said to be sent and to have their mission ; for the Maker has set them in the rhythm of his plan, and this world and that world heave to help them to shoot their lightnings to their destined ends. And still they are only the first brains that the epoch touches, and which, therefore, it publishes ; and being the highest they are the longest visible as we pass away : but, as we said, every man is a genius or an end, a space crowded with ideals, and these ideals are the brain of the soul, or the personal life. 72 THE HUMAN BKAIN. This word, genius, reminds us also of what we may call the Socratic brain, which attends upon the mortal organ. In this sense the brain-principle is an organization of guardian spirits, who live with our minds, fight our battles over our heads, whisper wisdom more than belongs to us, make our lights and resources exceed our days, and extend our debts into the unseen land to which we are adjourning. This vicarious function of souls is the result of their concatena- tion on the cortical plan. For here, where we are, our purer minds are infant, not yet detached from the matrix of the brain, and they sorely need guardians on the other side of time as it were, parent hands and instructions to see them fairly through this big nursery, the world. We know not how little our lives would be, or how inanimate, if the gaps of power and the passingness of the day were not filled and compensated from another source where power is incessant and wisdom eternal. It would be as though each nervous fibril had but one cortical dot prefixed to it, and not the whole brain ; or as though each mind stood alone, and were not environed and kept upright by an array of minds as long as the ages and as high as the heavens. But epochs have brains as well as individuals, and these are the ruling spirits and ideas which are enshrined in their institutions. For epochs are the duration of the social life, and what is death and birth for the individual is but the exchange of old atoms for new in the marching epoch. These cerebral ideas are at first the private ends common to the race in a given period, which appear on a new morning in the field of individualities, and are the germ and birthday of a social state. The principle as- sumed, the grouping of the cell, governs the composition from the least to the greatest, from the single family to the epoch of twenty centuries. As the grouping proceeds the action becomes grander, and the scale of operations is HIGHER ANALOGUES OF THE BRAIN. 73 transferred from homesteads to continents, but the same cause is carried on in both extremes. Like fate it revolves through senates and priesthoods, whose maddest strifes it builds into its plan. The truths of the time enter the epoch through its own convenient sciences or eyes. The acts and charities of life are interpreted according to its familiar pattern, and committed to the spirit of its nerves. In short, the collective brain has an animus like the in- dividual. And like the individual it has its decline ; and also its better successors, which are the appointed angels of time. These, however, are the animal brains of societies, re- ceiving and transmitting the rush of destiny as it tramples through the chaos of the worlds. But another brain, with power over fate, is set above us as our social sun. For a firmamental organism of Prophecy and Revelation over- arches the weltering centuries, and sends down spirit and divine light to the nations and races of the intellectual clime. Openness and circulation here are religions and adorations : the pressure of the life comes manifestly from above : as there is a God and Lord, it comes punctually to our wants, and the clank of our dire necessity is His mercy heard in terrestrial echos ; the sighs and heavings of mankind coincide with the birth of larger souls and societies, and with the advent of fresh dispensations. CHAPTER II. THE HUMAN LUNGS, HUMAN LIFE is illustrated by every organ of the body. Each contributes a share to the general vitality. The brains are as the tranquil inward respiring of existence elevated into mind; a life which seems immaterial and motionless, until from the opened head the capacities of organization come to light, and the brain demonstrates that our noblest powers are incarnate, real and progressive. That which is the secret of the brains is the open lesson of the lungs. They live physically and largely the same life which the brains live metaphysically and most minutely. In the running wheel of life the imperceptible motion of the axle is thought ; the sweep at the periphery is respi- ration. The brains give us the free principles of life, and the lungs, its free play in nature. It is this idea of the play of life which is the principal point in our first knowledge of the lungs : it is in the com- pletion of this idea that we must endeavor to bring out their functions. Of all the internal organs, not excepting the heart, the lungs move the most evidently. And as they are the plainest engines in our frames, we must, in that inevitable way from the known to the unknown, reason DESCRIPTION. 75 perforce from them to other parts, which also are engines, though more difficult to exhibit at work. The nose and mouth are the two doors which open in- wards towards the lungs ; the nose being the special en- trance to the chest, and the mouth, common to the chest and abdomen. The inner door leading to the lungs is the fissure of the glottis, which opens directly into the larynx, a cartilaginous box fitted up with muscles, membranes and other appliances requisite for the articulation of sound. The larynx terminates in the windpipe or trachea, a pipe extending from below the middle of the neck to opposite the third vertebra of the back, where it divides into two tubes termed the bronchi. The trachea, the trunk of the windpipe, consists of from fifteen to twenty fibre-cartila- ginous rings, which, however, do not form complete cir- cles, being deficient at the back part, where the tube is completed by a strong membrane. These rings, like little ribs, are separated from, or connected with, each other by strong elastic membrane, so that first there is the mem- brane, then a ring ; then again the membrane, then a ring ; and so forth. The trachea is lined on the inside by a soft membrane continued from that of the mouth. It is the great stem which bears the ramifications of the lungs. The two large branches of the trachea, the first bronchial tubes, run on each side to the lungs. On arriving thither, each divides into two smaller branches, and the subdivision continues, of each little branch into two twigs, and of each twig into lesser twigs, until at the last division the air cells terminate the tubes. These air cells are minute hollow chambers or vesicles, which hang like globules or grapes from the ends of the bronchia, and the air passes into them with every breath we draw, and is expelled from them more or less completely during each expiration. They form the characteristic element of the lungs, which are E2 76 THE HUMAN LUNGS. themselves nothing more than a vast, manifold and corro- borated air cell. The amount of surface exposed by the cells is very great. The whole of the constituents of the trachea exist virtu- ally, in function and principle, in the smallest elements of the lungs, and the trachea with the lungs is a goodly dia- gram of the minutest bronchial twig with its delicate air cell. In the grand consistency of nature, the parts belong to the whole, and vice versa, the mass being a spontaneous association of myriads of equally integral and so far inde- pendent structures. We have now drawn an outline of the pulmonic tree. Its roots are the nose and mouth extending into the atmos- pheres ; its boss is the larynx ; its shaft the trachea ; its first two branches are the bronchia; its other branches, twigs and fruits are collectively the lungs ; the fruits or air cells, however, are the lungs especially and essentially. All the organs of the body are supplied by arteries carrying vivid blood, and the lungs are nourished by the bronchial arteries, which, running alongside the bronchi, form an arterial tree corresponding in some measure with their ramifications ; the blood of the bronchial arteries being brought back out of the lungs into the circulation by the bronchial veins, which again form an inverse system of twigs, branches and trunks, answering to that of the bron- chial arteries. The bronchial vessels are of small calibre. Besides these there are the pulmonary artery and veins, the former a very large vessel, which coming direct by a single trunk from the venous side of the heart, accom- panies the bronchia, and splitting into finer and finer rami- fications, forms at last a "wonderful network" of blood- vessels around the air cells, the blood in which is separated from the air only by a membrane of extreme thinness. From the air cells this network reunites from twigs into DESCRIPTION- 77 branches, and from branches into the four trunks of the pulmonary veins, which pour the arterialized blood direct into the left side of the heart. Thus the lungs are like forests of blood trees, the air cells being open spaces be- tween, whereby the atmosphere is admitted to nourish and ventilate them ; one set of trees, dull and venous, repre- senting the blood before the ventilation, the other set, blooming and arterial, representing the beauty and flower which succeeds where the vernal air has blown. This turn from autumn to organic spring is momentaneous in the lungs, which may not inaptly be compared to trees, inas- much as leaves are the lungs of plants, and the vegetable kingdom, transmuting the earth and the atmosphere, be- longs to the lung- department of material nature. - The lungs, like the other important organs, have a plen- tiful supply of nerves, which coming from both the cere- bral and sympathetic systems, pursue the bronchia to the air cells. The parts enumerated make up the active constituents of the lungs. In recapitulation, they are the tree of the air tubes, four other arterial and venous trees, and a nerv- ous tree, terminating around and within the air tubes. All these are compacted by a system of membranes or skins, which make of the lungs not a fivefold or sixfold system of trunks, boughs, branches and twigs, but one solid though distinctly lobulated organ. These membranes may be generalized under the name of the pleura, including under that title all the cellular tissue which is directly continuous with the pleura. This pleura is a skin enveloping each lung ; the cellular tissue is a web of skins that dips down into the substance of the lungs, and separates stem from stem, bough from bough, branch from branch, and twig from twig ; at once dividing the parts from each other, and uniting them into a common 78 THE HUMAN LUNGS. body. The cellular tissue is therefore the bed in which the several parts of the lungs are planted. As it runs between the parts, and makes them into aggregate por- tions, or lobes and little lobes, it is sometimes called the interlobular tissue. The lungs which we have thus endeavored to construct, are two conical organs, filling, with the heart, the cavity of the chest. They correspond in shape with the inside of the chest, and press below upon the diaphragm. The pleura which covers them, contracts and dilates with every respi- ration, and maintains its spring during life. The elasticity of this serous membrane is an indication that where serous membranes are present, as for instance over the brain, and over the abdominal viscera, a similar elasticity is intended, or an expansile and contractile motion like breathing is performed. The chest, in which the lungs are placed, is a conical box, moveable in its parts, and capable not only of dilata- tion and contraction, but of infinite variations of shape. It harmonizes with the lungs in their movements, forming with them but one machine, so that it is indifferent whether we say that we breathe with the lungs, or with the chest. In good health, when consent between the two is perfect, the bones and muscles of the ribs are of no heaviness in function, but rock and swim upon the lungs. Thus when we speak of the lungs in the sequel, we imply the whole engine of breathing even to the skin, and regard the chest itself as a dress or membrane inseparable from the lung- principle. Inspiration, or the drawing in of the breath, is caused by certain muscles drawing out the walls of the chest, and enlarging its inward cavity, in which case the pressure of the external column of atmosphere causes the air to rush down into the windpipe and fill the lungs, which then en- ONENESS OF THE LUNGS AND CHEST. 79 large to fill the cavity of the chest. Expiration or breath- ing out depends upon the relaxation of the muscles and the resiliency of the parts of the chest, as well as upon the elasticity and contractility of the lungs themselves. Thus the force of the diaphragm and of the muscles between the ribs engenders inspiration, and overcomes the elasti- city of the lungs ; the elastic power of the lungs produces expiration. The prolonged alternation of these two forces is " a contest in which victory declaring on one side, or the other, is [under ordinary circumstances] the instant death of the fabric." In the act of breathing we notice four divisions, each of importance to our sequel. First, inspiration ; secondly, a pause which ensues when the inspiration is completed ; thirdly, expiration ; and fourthly, a pause when the expi- ration ends ; after which inspiration again occurs, and the same course is measured. Inspiration rises to a certain level, and there rests for a time ; expiration descends also to its level, and registers it by a pause. Further, the inspiration may either take place continuously in one long breath, or by several smaller inhalations and pauses the expiration likewise may either proceed without a stop, or it may be divided into several levels of exhalation, each with its own proper pause. But let us come to the use of respiration, or the benefits of breathing. These are twofold : 1. The use of the air drawn in, towards the renovation of the blood, and of the, air emitted, towards its purification. 2. The mechanical effect of the breathing upon the circulation and the body generally. We speak first of the first of these uses, be- cause of the exclusive importance usually attached to it. The result of investigations on this subject need detain us but a short time. It is in substance this, that when the air is breathed in, the expanded network of capillaries 80 THE HUMAN LUNGS. besetting the air cells absorb from it oxygen into the blood, and at the same time pour forth carbonic acid gas from the blood, which is carried out of the system by the air leaving the lungs. In consequence of these two changes, the reception of oxygen and the expulsion of carbonic acid, the alteration of the blood from dark venous to florid arte- rial in the air cells, is accounted for. These changes, authors tell us, are purely chemical, and the same as happen to venous blood out of the body. We rejoin, however, that this theory is out of place, being chemical and not organic. It deals only with what is ex- ternal to the body. The air of inspiration is on the way in, and the air of expiration is on the way out, but neither the one nor the other is a part of the living frame ; how- ever deep either may be in the passages oft the body, still it is not indoors. The lining membrane or wall of the cell is the partition between life and death ; inside the cell is vitality, outside of it, dead nature : within it, the man lives ; without it, the universe environs him : the oxygen which is lost is missed from the outside, and the carbonic acid which is found is on the outside also ; but on the in- side no corresponding observation has been made, or can be made ; and it is a questionable inference whether car- bonic acid, as such, exists in the blood, or whether oxygen, as such, is there either. As an account of the food of the blood, and of the excrements of the blood, both external to the man, the chemical report is valid, but is it a satis- factory statement of any changes in the blood itself cir- culating in the system? Assuredly not; and let us here remark, that the terms of every subject should be in keeping with the subject ; the things which are life's should be rendered to life, and those of chemistry to chemistry. We cannot judge of the living, either by the raw material which they pasture from the world, or by CHEMISTRY. 8 1 the refuse which they leave behind them ; or even by both together. Organization is the one fact in organization ; chemistry disappears into it, and is seen no more as che- mistry. The blood, as an organic creature, into which all things stream, and from which the body issues as the work of works, is the sole reality in our veins ; it is as blood alone that its elements come before us. As well re- gard all heroic actions as instances of muscular exertion, and these as powers of lever and fulcrum, and other pro- duce of mechanics, and not connect them with the foun- tains of human nature, as make the living union of all things in the blood into a congeries of chemical substances. Chemical indeed they are when they die and are experi- mented on, but chemical is not their name while they are part and parcel of our human blood. They must be ad- dressed in the language proper to organic life, or the keeping of their science will be violated irretrievably. We the more insist upon this, because by a very natural insurgency, chemistry has of late years been pushing what are called its conquests into the domain of physiology. But physiology has to consider the organic characters of things, whether animal or vegetable ; chemistry, their inorganic or mineral elements. This is a broad distinc- tion, and easy to apply. We would not rescind one che- mical experiment, or deny the value of one fact therefrom resulting ; but we protest against the logic of reasoning from chemistry to physiology ; from bricks to architecture ; from neutral matter to forms shapen for particular pur- poses, and with qualities that constitute the.ir point, and their very existence. At the same time there is no objection to regard life as a fire, and the chest as one of its principal grates ; the fuel being the blood, and the draught, the fresh air of the lungs. In proportion as the outward world is cold, E3 82 THE HUMAN LUNGS. this lung-fire must be kept up by more inflammable mate- rials, just as larger coals and logs are in use in December than in May. And moreover in proportion to the size of the fire is the quantity of smoke or carbonic acid disen- gaged from the system. All this is safe analogy and good experiment. But let us not be deceived into regarding this as animal heat: it is as purely mineral heat this presumed " combustion" of carbon and fat as the heat in an ordinary stove. Animal heat is that which warms life, or inflames the animal, as such. Its burnings are de- sires, the flames of animal existence. These are kindled by their appropriate objects. The universal animal heat of the body is the organic zeal or love of self-preservation hotly present in every part. This is the origin of hunger and thirst, which tend to continue bodily life, and lay the world under contribution, not despising even its mineral fire. There are different orders of fire; even in nature there is a substratum of heat of which we make all our fires. And so in the body there is an animal heat which lies at the basis of human warmth, even when the tem- perature can be fully accounted for by the " combustion" of the food. Take the sun out of nature, and the numbed flints will have lost their sparks ; and take the soul out of the body, and you may indeed roast it or boil it, but cannot warm it with one ray of " animal heat." Moreover there are several kinds of chemistry. The present chemical sciences are of the mineral degree, al- though their higher branches are indeed mineral- vegetable and mineral-animal. But there is no such science yet as either vegetable or animal chemistry. Mineral chemistry teaches the composition of mineral substances by analysis and synthesis. It makes minerals by mixing together their components under favorable conditions. In like manner vegetable chemistry makes plants, and animal CHEMISTRY. 83 chemistry makes animals. Nature does this, and so far nature is the only vegetable and animal chemist. But though we cannot produce in her laboratory scientifically, but only blindly, we can observe her processes, and learn the results. For example, the mixture of sexes produces animals, and in a certain sense plants also. The mixture of breeds varies these substances, namely, animals, and creates new compounds or animal varieties. The mixture of opinions produces ideas, and then we have intellectual chemistry. The present is distilled out of the past by the same law. Chemistry then is the mineral term. Raise it a step into the vegetable, and in plants it becomes pro- pagation ; into the animal, and it becomes generation : and so forth. This of synthetical or creative chemistry. The terms alter as the theatre changes. But to run one term through all the stages, is to miss the essence of all but the lowest. When science does this, it not only finds " sermons in stones," but is petrified by their discourses. Dwelling therefore briefly, and under physiological pro- test, upon the oxygen and carbonic acid disengaged, or absorbed, during respiration, we proceed to remark, that the whole of the venous blood of the body, w r hich is com- paratively exhausted by its circulation, and also the whole of the new chyle or realized essence of the food, passes by the pulmonary artery to the networks of minute blood- vessels in the air cells, and so through the lungs, and in those fine vessels is counted out and thoroughly sifted, and its purification takes place. Whatever disabled por- tions it contains, are there taken to pieces, their broken elements thrown away, and the sound reconstituted. What- ever injuries the blood may have received from the pas- sions of the mind, which as we know have all power to bless or to hurt it, are palliated by the removal of clouds of exhalations, as witness the odor of the breath. When 84 THE HUMAN LUNGS. the fire of life burns dark and fuliginous, the windpipe is as the chimney that relieves the body of its noxious smoke. Moreover, whatever crudities or superfluities the new chyle, or the milky produce of our food, may contain, are expelled by the lungs through the same channel. In short, the lungs are the general strainers and cleansers of the blood. Globule by globule they discuss its problems, separate its truths from its errors and its dead from its living, and hold it to its brief but energetic trials for purification and the consequences which follow. Let us now turn from the act of expiration, from the air " laden like a mule," as has been aptly said, " with a burden and baggage of adulterations, and forced to carry them out," to inspiration to the newly-arriving air, the provision for supporting, and the blast for rekindling, the blood. And let us spend a moment upon the admirable means of nature for managing this very air, and presenting it to the blood in the last place, clear, genial, and warm. First the nose, as the administrator of the sense of smell, takes cognizance of any odorous or stimulating properties in the atmosphere, and acts accordingly ; if pure, sweet, and fragrant, it draws in the air by volumes, inspiring confidence and openness down to the very air cells : if manifestly noxious or impure, the nose closes in propor- tion, extemporizes a thousand valves that keep out the baser particles, and the air is driven against the sides of the passage, all the way to the same cells, its uncleanly accompaniments being caught in a viscid snarework all down the tube : it also gives notice to the mouth, whose mucus catches its share of effluvia, which are rejected by the shortest way. The mucus of these passages performs an important use, detaining clouds of particles which are unworthy to pass inwards, and this operation increases in strictness the further the air advances in the narrowing PHYSICAL ACTIONS OF THE LUNGS. 85 tubes. Consequently when it arrives in the cells, it is clothed with kindly vapors issuing from the body, has caught the tincture of the living heat, and is in fine unison with the blood. And the blood has no sooner sniffed it well, than it again becomes auroral and arterial. Imme- diately that this is accomplished, the air, exhausted for this primary use, is spent, as we saw before, upon the secondary and servile use, of undertaking and carrying forth the dead exhalations. The blood that comes up to meet the air is all the blood in the body, for after circulating, it all requires refresh- ment or purification. It is carried into the lungs through the trunk of the pulmonary artery. But we mentioned another artery, the bronchial, which performs an office in the lungs. The old, exhausted and impure blood is con- veyed in the pulmonary vessel ; the blood which is pure and young as the heart can make it, runs parallel with the former in the bronchial. The pulmonary blood is to become regenerate in the lungs ; the bronchial is the run- ning model of its future state, and exercises a contagion of youth upon its pulmonary associate. For nature never prescribes an end, without shewing a present example of it. The air ministers to the blood an infinity of fine endow- ments which chemistry does not appreciate. How full it is of odors and influences that other animals, if not man, discern, and which in certain states of disease and over- susceptibility become sensible to all : moreover at particular seasons all fertile countries are bathed in the fragrance shaken from their vegetable robes. Is it conceivable that this aroma of four continents emanating from the life of plants has no communication with our impressible blood ? Is it reasonable to regard it as an accidental portion of the atmosphere ? Is it not certain that each spring and season 86 THE HUMAN LUNGS. is a force which is propagated onwards ; that the orderly supply, according to the months, of these subtlest dainties of the sense, corresponds to fixed conditions of the at- mospheric and imponderable world adequate to receive and contain them; that the skies are the medium and market of the kingdoms, whither life resorts with its lungs, to buy ; that therefore the winds are cases of odors ; and that distinct aromas, obeying the laws of time and place, conform also to other laws, and are not lost, but are drawn and appreciated by our blood. Nay more, that there is an incessant economy of the breath and emanations of men and animals, and that these are a permanent company and animal kingdom in the air. It is indeed no matter of doubt, that the air is a product elaborated from all the kingdoms ; that the seasons are its education ; that spring begins and sows it ; that summer puts in the airy flowers and autumn the airy fruits, which close-fisted winter shuts up ripe in wind granaries for the use of lungs and their ^.dependent forms. Thus it is passed through the fingers of every herb and growing thing, and each enriches its clear- shining tissue with a division of labor, and a succession of touches, at least as great as goes to the manufacture of a pin. Whosoever then looks upon air as one unvaried thing, is like the infant to whom all animals are a repeti- tion of the fireside cat ; or like a dreamer playing with the words animal kingdom, vegetable kingdom, atmosphere, and so forth ; and forgetting that each comprises many genera, innumerable species, and individuals many times innumerable. From such a vague idea, we form no esti- mate of the harmony of the air w r ith the blood in its myriad-fold constitution. The earth might as well be bare granite, and the atmosphere, untinctured gas, if the vegetable kingdom has no organic products to bestow through the medium of the air, upon the lungs of animal THE WEALTH OF THE AIR. 87 tribes. Failing all analysis, we are bound to believe, that the atmosphere varies by a fixed order parallel with that of the seasons and climates ; that aromas themselves are abiding continents and kingdoms ; and that the air is a cellarage of aerial wines, the heaven of the spirits of the plants and flowers, which are safely kept in it, without destruction or random mixture, until they are called for by the lungs and skin of the animate tribes. Fact shews this past all destructive analysis. It is also evident that accumulation goes on in this kind, and that the atmosphere like the soil alters in its vegetable depth, and grows richer or poorer from age to age in proportion to cultivation. The progress of mankind would be impossible, if the winds did not go with them. Therefore not rejecting the oxygen formula, we subordinate it to the broad fact of the recep- tion by the atmosphere of the choicest produce of the year, and we regard the oxygen more as the minimum which is provided even in the sandy wilderness, or rather as the crockery upon which the dinner is eaten, than as the repast that hospitable nature intends for the living blood in the lungs. The assumption that the oxygen is the all, would be tolerable only in some Esquimaux phi- losopher, in the place and time of thick -ribbed ice ; there is something too ungrateful in it for the inhabitant of any land whose fields are fresh services of fragrance from county to county, and from year to year. Chemistry it- self wants a change of air, a breath of the liberal land- scape, when it would limit us to such prison diet. Here, however, is a science to be undertaken 5 the study of the atmosphere by the earth which it repeats ; of the mosaic pillars of the landscape and climate in the crystal sky ; of the map of the scented and tinted winds ; and the tracing of the virtues of the ground, through exhalation and aroma, property by property, into the lungs and the 88 THE HUMAN LUNGS. circulating blood. For the physical man himself is the builded aroma of the world. This, then, at least, is the office of the lungs to drink the atmosphere with the planet dissolved in it. And a physiological chemistry with no crucible but brains must arise, and be pushed to the ends of the air, before we can know what we take when we breathe, or what is the import of change of air, and how each pair of lungs has a native air under some one dome of the sky ; for these phrases are old and con- sequently new truths. We notice, indeed, a great difference in the manner of the lungs to the different seasons, for the genial times of the year cause the lungs to open to an unwonted depth. The breaths that we draw in the summer fields, rich with the sweets of verdure and bloom, are deeper than those that we take perforce on our hard wintry walks. Far more emotion animates the lungs at these pleasant tides. Nor is this to be wondered at, any more than that we open more freely at a table loaded with delicacies, than at a poorly furnished board. The endowments of the vegeta- ble kingdom in the atmosphere not only feed us better with aerial food, but also keep us more open and more deeply moved; and we shall see presently that the movement of the lungs is the wheel on which the chariot of life runs, with more or less intensity according as the revolution is great or small. Now in summer it is great, and in winter it is small, for manifest motives.* Furthermore, our noses * In a regular treatise on the chemistry of the lungs, the atmosphere would be separately considered in its mineral, vegetable, animal and human constituents, and in the effects of these, as introduced through the lungs, upon the body and the mind. In this work, however, we make no pretensions to treat the subject according to this larger order, though other considerations following out the above series will be presented in the sequel. THE WEALTH OF THE AIR. 89 themselves, the features of the lungs, are in evidence that there is more to be met with permanently in the air than inodorous gases. For we cannot suppose that scent ends organically where we fail to perceive it with the sense. But enough has been said already On the flavorless world and noseless doctrine of the chemists. This extension of the subject has a practical bearing. The chemical view blinds us to the seeds of health and disease contained in the atmosphere. We pound it into oxygen, hydrogen and carbon, and find its ruins pretty invariable in all places under all circumstances. Plagues and fevers give a different analysis, and tell another tale. They prove that the air is haunted by forcible elements that resist segregation and distillation. The strokes of these airy legions are seen, though the destroyers them- selves are invisible. In the atmosphere as a place of retri- bution, the cleanness or uncleanness of the ground and the people is animated by ever wandering powers, w r hich raise cleanliness into health, and filth into pestilence, and dis- pense them downwards according to desert with an unerr- ing award. But who could guess this from the destructive analysis into oxygen, hydrogen and carbon ; which misses out the great shapes that stalk through the air, and laugh at our bottles and retorts often with a diabolic laugh? But we shall recur to this subject when we treat of Public Health. To conclude this part of our subject, we have seen that the lungs raise the blood into its principles, and discuss them on a higher arena ; that they continually refresh and enlarge it by bringing it into contact with the outward world in the shape of the atmosphere, where at once it gives up its antiquities as the free breath unlocks it ; that the lungs also humanize the air as it enters, and fill it with the organic warmth and movements of the nose and the 90 THE HUMAN LUNGS. head. But further, the blood, in passing into the lungs, is held as it were above the body by virtue of the light- ness of the sphere. And not only in the lungs but every- where in the system, the pulmonic levity, or the rise of the surface, operates statically upon the fluids ; so that each breath amounts to a posture or rather a hover of the entire capillary blood and nervous spirit of the body. This levity- giving is an intermediate function between the aerial and motor offices of the lungs. We shall speak of it again at the end of this Chapter. We have now considered the chemical and physical functions of the lungs, and glanced at their statical office ; it remains to treat the second part of the subject, namely, the respiratory movements, or the mechanics and dynamics of the lungs. That the effects of the lung movements are not small, a short description will convince us. Every time that we draw in the air, our brains fall, from the venous blood being sucked out of the head to fill the threatened vacuum in the chest ; and when we breathe out the air, the brains rise, from the return of the blood from the head to the chest being impeded. The same also takes place with the heart. During inspiration, the lungs breathe up the venous blood into that organ, and retard the passage of the arte- rial blood from it ; during expiration they keep the venous blood away, and increase the onward impulse given to the arterial blood. So likewise in the belly. Largely emptied, as it is, of venous blood in inspiration, and subject to the movements of the superincumbent lungs, it necessarily undergoes great motion during breathing. Now, that movements like these have a universal part to play, it would be idle to deny. They actuate the body some fourteen times, or more, every minute of our lives. If we watch our neighbor as he sits upon his chair, we see, THE LUNG -MOVEMENTS. 91 not his wind chest only, but the man himself, expand and contract each time he breathes. If we watch the face, we see a corresponding change : if we lay the hand upon the stomach, we feel it rise and fall as plainly as the chest. And common sense ordains, that in a machine divinely economic, the use of any motion is co-extensive with the motion itself, and if the motion be universal, the end it serves is likewise universal. As we have seen, the pressure of the atmosphere dis- tends the lungs and produces inspiration : the living con- traction of the lungs causes expiration. The result is, to engender a power which alternately stirs the frame. As a familiar instance of what this power is, I appeal to those who have sat to the sun for a daguerreotype portrait. You know that the greatest stillness is needed to bind down that quick artist to the execution of single portraits ; to make his successive ideas or touches fall in identical lines ; otherwise, he will paint you not one, but a chaos of likenesses, equal in number to your variations of position. In the painfulness of your anxiety to sit still, to suppress the breath, you find that you are a frame which verily exists in motion you ascertain what a struggle it is to combat your life's progress, to wrestle with the moving lungs. To the fingers' ends, to the toes' ends you pant and swell, and sink again, with irrepressible heavings ; and the voice which emancipates you from the effort, and bids you breathe as you please, unobservant of the fact, is release from a straitness which could not be long endured. The same thing is experienced more or less, whenever it is necessary to use great stillness, to control the breath. The consciousness which is then awakened comes into col- lision with a power whose resources we never estimate practically but at such times of struggle. Ask any of those who have been engaged in poses plastiques, and they 92 THE HUMAN LUNGS. will tell you that of all hard work, standing still is among the hardest. What becomes of the power created by the air falling with the whole weight of its column upon the moveable lungs, and displacing or expanding them, and by the sub- sequent living contraction of the lungs ? Can we imagine that its use is confined to the outside of the system ? to the admission of fresh and the expulsion of contaminated air ? This would be as reasonable as to suppose that the main office of a water wheel, connected with an extensive and complicated machinery, was confined to the water which falls upon it, and that the mechanical power engendered was not communicated inwards to the plant. At this rate nature would be less thrifty than our engineers, who know that power is precious, to be husbanded to the last degree, conducted where it is required, and never expended with- out a result. Suppose that a portion of the water be needed inside the mill, as is generally the case, this is easily sup- plied by some sideward allowance of the machinery, or by the pressure of the water itself, which contains the power in an unmechanized state ; but the main action is never spent upon that which comes of its own accord. The blood is aerated in some animals, and the juice in plants, without any motion of the lungs, which may suggest that the aera- tion of the blood is not the grand office of these movements. But in machineries, any motion which is superabundant, or not turned to use, is hurtful to the object sought, pre- cisely because motion always has effects, which in the latter case mix with the intended result, and confuse or disarrange it. This applies more strongly to the human frame than to anything of man's making. * Thus, we observe that there are really two questions which have been confounded with each other : Firstly, What is the use of air to us ? and Secondly, What is the OFFICE OF THE LUNG-MOVEMENTS. 93 use of breathing ? And with respect to this second enquiry, we now see that it will be puerile to say that we breathe in order to breathe. Let us grapple with the problem, and solve it otherwise than by a verbal retort. We an- swer, then, that the use of breathing is, to communicate motion to the body, to distribute it to the different ma- chineries or viscera, to enable them each to go to work according to their powers. Our position is, that the blood and blood-vessels make and repair the organization, and keep it in working trim ; while on the other hand the lungs and the brains use and work it : like as an engine is made in the factory by one set of artizans, but is taken elsewhere to enlarged condi- tions of liberty or motion, to be worked by another class of persons. Thus, the heart's fabricative strokes are the lesser motion : the experimental play and employment of the lungs is the greater motion. By the one the hammer is plied upon the engine ; by the other, the completed en- gine is made to use its qualities, and to work according to its construction. Everybody contains two bodies, the one which is forming, and the other which is finished and working : the heart is the spring and centre of the first, and the lungs of the second ; the one represents matter, and the other spirit ; and the ratio between the pulses and the breaths gives the constant equation which subsists be- tween these inseparable two. It needs but little consideration to shew that the organs and viscera of the body require a supply of motion to ena- ble them to perform their functions. These functions con- sist, firstly, in the reception of a peculiar quantity as well as quality of blood, from which they, secondly, are to se- parate certain materials, or upon which they are to produce some change : the quantity and quality required varies also at different times. What is it that supplies them with 94 THE HUMAN LUNGS. this peculiar blood ? Not the impulse of the heart and arteries, for this could cause no discrimination in the sup- ply to different parts ; on the contrary, its action is uni- form all over the body. Each organ then requires an individuality to enable it to choose and take what it wants from the common system. How can this individual power be given to the organs, except by their exercising a motion of expansion and contraction, whereby they draw in or shut away the blood, as they find it necessary ? But again, if the organs are alive, the operations that they perform upon the blood demand a general motion on their part. If we are to regard them as dead sieves or fil- tering stones, then it may be sufficient for fluid to run into them, and the various secretions, the bile, the saliva, &c., may drip through them without any action on their part. The humanities and industries of the inner man may sit down deadly still, like mesmerized Turks. But is such a conception proper in a body overrun by spirited nerves, which in proportion as they are impressed or passive on the one hand, rise up in activity on the other ? And if the parts of the organs are not only passively but actively engaged in elaborating the various juices, must not their activities combine by a law into one general action or mo- tion common to the whole organ ? Does not all function in a living body imply motion, and is not the sum of par- ticular motions necessarily represented by an aggregate motion equal to all its parts. Though his blood may be circulating, yet a motionless man is a man doing nothing ; and a motionless organ is just as ineffectual. To exist is one thing ; to do is another and a further. In the whole man, the management of his motions constitutes nis skill ; in the partial man or the organ a corresponding manage- ment performs its functions. Without precise means set in real motion, you have no art and manufacture, no saliva NECESSITY OF THE PULMONAKY MOTION. 95 and no bile. These latter are the most marvellous of fabrics ; the body is the most stupendous of factories. Our com- monest thoughts upon such subjects are the way to the best. Destruction, then, is in a manner compatible with rest, but construction never. The sap is indeed distributed in plants without any ap- parent expansion and contraction of their organs, as it were by a magnetic or elective affinity between the parts of the plant, and the fluids they require. And this election is, doubtless, involved in the animal also. But then the mean- ing of animal as contradistinguished from vegetable, is motion as distinct from growth, or local as different from and superior to molecular movement. And the several organs of animals are animal like the whole. No vegeta- ble tissue could associate in the body of life, but it would be the sport of activities which it could not share or recipro- cate. A liver that was merely vegetating would be pressed to death in a body that is ceaselessly animating. There- fore the motion of the organs is indispensable to make them parts of the whole, or to raise them into the animal sphere. To return to facts, we find in the motion of the lungs communicated to the system, the very power which the organs require. For the body is a chain of substances and organs, whose connexions are so disposed, that motions communicated from within, vibrate from end to end, and from side to side, and extend to the extremities of the limbs before they are absorbed. And in the intimate fel- lowship pervading it, and which is brought about by the skin and the membranes, we see the condition whereby a general motion, like that of the lungs, amounts to an at- traction exerted by the frame and its parts upon the world without and the world within ; by which, in each different voluntary expansion, it draws in as it pleases the fluid 96 THE HUMAN LUNGS. contained in its own cavities, as well as whatever it requires from the great ocean of the atmosphere. Such is the value of the movements of the lungs. They not only breathe themselves, but make the body breathe similarly with them ; and in this consists its life, whereby it becomes an individual, and takes what it wants for itself, suffering no intrusion from within or without, whether from the blood of the heart, or from the pressure of the universe. To follow the gear by which the motion of the lungs is communicated to other organs, belongs to anatomy and experiment, but the general fact belongs to common sense, and science has only to confirm it. We do not now enter upon the anatomy, but will content ourselves with observ- ing the effect of the pulmonary engine upon the great de- partments of the system. And first for the effect upon the nerves and the brain. First, with respect to the nerves, the motions of the lungs, occurring fourteen times per minute, act upon them more than upon any other part, because they are the most impressible of the organs. Now a large portion of the nerves runs through the chest, a space subject to threat- ened vacuum during every breath ; and more than a third part of the spinal marrow virtually lies open into the same exhausting receiver. The plain consequence is, that the nerves and the spinal marrow are expanded with each inspiration. Either that or they resist the inspiration, and in this case the unity of the body is at an end. But we cannot make the latter supposition. If they are ex- panded or enlarged when the lungs draw them out, of course a physical fluid enters them to fill the space created, and tends to fill the organs to which they are distributed. In this way the nervous system, the focus of life, opens the frame at the same intervals as the lungs, the circumference of life ; the lungs being simply the want of living fluid, THE BREATHING OF THE BRAIN. 97 and the nerves the corresponding supply. This is an or- ganic cooperation between effect and cause, whereby the highest purposes of the organization are seconded most absolutely, and yet most freely, by the lowest. The nerves then breathe their atmosphere, the nervous fluid, at the same intervals as the lungs breathe theirs, which is the proper atmospheric fluid, and the breath of the nerves is the life of the lungs, as the breath of the lungs is the bodily action of the nerves. The nerves, how- ever, are continuous with the brain, and secondly, we observe that their expansion is its expansion. It opens, for motion's purposes, into the chest, by the nerves, and by the spinal marrow ; the lungs have their suckers upon it everywhere, through the membranes and the blood- vessels. It therefore breathes under the attractions of the pulmonic air-pump. Like every other part it respires its own thoughts or objects. What these are, it does not behove us to enquire, but we may affirm generally, that they are those fluids which are the brains of the body and outward universe. The lungs breathe that which answers to lungs in nature, namely, the air. The heart breathes that which is the heart's in the system, namely, the blood; and each organ, as a rule, breathes its own corresponding fluids. The heart, as we have just anticipated, breathes also with the lungs, and so manifestly, that physiology already contains many chapters upon the influence of the respira- tion upon the circulation. The pulmonary motions acting upon the heart and great vessels, cause the venous blood to return to the heart, and somewhat retard the outgoing arterial blood, during the inspirations ; and vice versa ; and imprint upon the pulse at the fountain-head the force which is destined to supplant the pulse where the vessels enter the organs. By this means the ultimate intention is inti- F 98 THE HUMAN LUNGS. mated from the beginning ; the blood in its childhood is let into the secret of its destiny ; and the sanguineous sys- tem is prepared at once for submission to the brains and lungs. The lungs then inaugurate the grand circulation into the life and habitudes of the rational body, animat- ing the blood itself with the moving spirit of the atmos- pheres. The belly too is in the human conspiracy ; it would be dead to the rest if it did not breathe. The abdominal breath is the most physical of all, commanded by power- ful muscles, and destined to suck in that large food upon which the belly lives, and whose pleasures it respires. As we have observed already, we need only lay the hand low down, and we shall feel our hunger moving and busy in the workings of its native cave. The belly, however, not merely breathes its general atmosphere, the food, from the world of food lying in the stomach and intestines, but its organs and viscera breathe in each their peculiar blood, and breathe out their excre- tions. For each organ has a precise form and constitution, and like every other machine acts according to its con- struction. The power of the great steam engine, the lungs, is communicated to all, but each takes it in its own way. For example, when the liver is drawn out or breathes, and is filled with liver-thoughts and energies by its roused nerves, the expansion follows its make and texture ; it is a motion of the machinery of the liver ; and the purified blood on the one hand, and the bile on the other, are woven accordingly. So when the kidney is drawn out to act, it is a motion of the machinery of the kidney. The different machines moving in different ways, perform their functions, draw in their blood and manufacture it, exactly according to their build, each with a difference from the rest. There is no tyrannous influence of the lungs ; their traction upon THE BREATHING OF THE BODY. 99 the gear of the organs is only the power necessary to set them to work, to enable them to revolve in their places, and to put forth their given genius for the commonwealth of which they are independent members. Each organ of the body has therefore its own sphere, within which it is individual. It is true that its force comes from without, but then it is a force answering to that which it desires from within by the very nature of its nerves. It is therefore a rule, that the blood is merely carried by the heart and vessels to the doors of the organs, but is not intruded ; for on the threshold of the organs it encounters another force, and is drawn inwards or sent outwards only at the times when the organ draws it or expels it. In a word, at the organs the jurisdiction of the heart and arteries ceases, and that of the organ itself begins. To complete the empire of the respiration, we notice that the muscles and limbs breathe like the rest. During repose this is more difficult to shew, but even then, if we attend carefully to the draw of the expansion passing from the belly down the legs, we shall find that the skin tends out in an inverse pyramid from the loins to the toes and heels; like trowsers tight at the bottom, but expanding and contracting above, and chiefly at the top. While, however, w r e are at rest, the respiration of the limbs is scarcely noticeable, beyond the parts of the arms and thighs immediately contiguous to the body. But when we rise into motion, and the will comes forth, the effect is differ- ent ; and in powerful volitions and actions a limb of air become steel, runs rigorously down to our toes and fingers. The skin is braced so tight, that the muscles threaten to start through it, and the will in the same manner menaces to bare itself by throwing off the muscles. The clothes and the body fly out like concentric planetary rings in a F2 100 THE HUMAN LUNGS. rapid vortex. The man becomes more and more of air ; he ceases to lie, he ceases to sit, he ceases to stand, and, like an elastic sphere bounding upon a point, the ball of the foot is his only contact with the ground. This is the extreme effect of the aeration of his limbs, He has be- come a bird for that moment, and can then fly through difficulties, which are the atmosphere of these great actions of the lungs. The lungs then are consenting organs in muscular and gymnastic efforts, and precise muscles of breath or spirit lie under the muscles of flesh, and lend them force, hard- ness and sphere in their operations. It is also to be remarked, that as inspiration commences a posteriori, or from the muscular system, and as all the muscles concur to it more or less, so the inspiratory effort may commence from any part of the frame, and the breath- ing will be differenced according to the part. In ordinary normal breathing, the thoracic and intercostal muscles appear to begin the act ; but in pleurisy the centre of operations is changed, the breathing becomes u abdominal," and the action upon the chest is secondary. In like man- ner any muscle of the frame may take the lead in initiating the action, for all the muscles are connected together, and tend instinctively to influence each other. Thus we may have splenic breathing, or umbilical breathing, or hepatic breathing, according to the part of the surface which begins the inspiratory traction. Now the spirit of any action is according to its beginning in the body. But this is too important a subject to be discussed within our present limits. It is now therefore evident that the movements of the respiration are not confined to the chest, but are systemic motions pervading the head, body and limbs, and lying at the basis of the functions of the parts ; and thus that bodily THE BREATHING OF THE BODY. 101 actions or functions are never created, but only shaped or formed out of a stock of motion given in the nature of things. Furthermore as habits are no sooner engendered than they are written upon the body, and especially upon the nervous system, it is plain that this habit of reciprocal breathing is deeply inscribed as a second nature upon the animal textures, and that they tend to fall into it upon the least impulse given ; according to the well known laws of recurrence in the bodily frame. Thus, on the showing of facts, life may be denned as the progressive education of the organs and viscera into habits of breathing which con- tradistinguish them from dead organs. What we have said might have been taken by analogy from the air as well as from the lungs. For the air also has the three functions ; a chemical, by which it combines with other substances ; a statical, by which it presses with so many pounds to the square inch ; and a mechanical, by which it serves as a motor force whenever its columns are displaced or its volume agitated. The lungs, as we have now shewn, correspond to and make use of the air in all these three departments. We may therefore resume in saying, that the chemical powers of air are chemico-vital powers of lungs, and the mechanical powers of air, me- chanico-vital powers of lungs. We do not forget in these observations, that breathing commences only at birth, and that another order of things prevails previously. But this different state does not con- tradict the views put forth. Were this the place, we might pursue the thread of science into that other and attractive but mysterious sphere of whose still spring the round of this life is but the first expansion. But we must be content with remarking, that during embryonic exist- ence, the main business is the work of formation ; the body is then upon the stocks ; and as the blood first and 102 THE HUMAN LUNGS. the heart afterwards are the builders of the body, the brain or nervous principle operates through them, and its move- ments keep pace with theirs ; but after birth the usage of the body is the main thing ; the life becomes more than the meat ; the body is now to be worn out in action ; its growth and repair are secondary, and all with reference to its employment ; and this, as we have seen, depends upon the lungs ; wherefore in the second case, the brain shifts its patronage and alters its step, and works through and with the lungs. It is what might be expected, that the brain should respire with the heart in the heart-epoch, which anticipates the period of birth, but in the epoch of the lungs, or conscious life, should sympathize or syn- chronize with those organs which have the ruling mission, and transfer its sceptre to the younger dynasty of the chest. The views we have been considering find an agreeable response in established laws of nature, constituting a branch of the doctrine of universal attraction, whose appliance they shew in the human frame. Nor is this an insignificant support that they receive. When a law is sure for one department, we have a right, assuming unity of system, to look for that law in every sphere, though modified in each by its new circumstances. So if attraction be the most general law of the dead universe, we know that in a new sense it is the general law of organization, and also of the human or living universe. But in the actions of the lungs we have found it omnipresent in the body ; and have seen the spring of an attraction applied to the organs, which causes them to operate very much according to the Newtonian formula. Here then we join forces with the discoverer of material attraction, who regarded it as the immediate finger of God, freshly noting the solidity of whose wisdom, we find in the body that attraction is no UNIVERSAL ATTRACTION. 103 abstract formula, but palpable and living lungs. Nor can we doubt than when analogy is better known, and can be boldly worked, the light that issues from the unfolded doors of the human body, will stream forth into the vault of nature, and kindle celestial physics with a breathing wisdom that never could come from inanimate things, even though their theatre be ancient night with its gorgeous pageant of stars. The active or alternate attraction in the body, like all attraction, amounts also to a law of association, in this case the association of the organs. If each organ takes, and does, what it wants, each organ is conveniently placed to do and to take it. The organs which need the best blood, are so seated at the banquet that they obtain it naturally and necessarily. They are succeeded in punctilious rank by the rest, each having its attractions seconded by its place round the table. There is a society in our members. But this is such a subject that we must be content with a glance at its stupendous proprieties. The order which it involves, could we open it but a little, is of visionary magnificence, and might make us into propagandists of the organization of the body. For the Divine Architect rests not in mid- dling fitness, but now, as at the first, perfection is his way, and embodied truth is his everlasting child. Surely, then, we say, at the risk of repetition, it is no longer difficult to see the fundamental importance of the lungs in the human body. Life consists in the peculiar faculties, passions, instincts, senses and actions, which our bodies execute; or life is spiritual motion. This cannot be founded upon physical inertia or dead body, but upon physical activity or living body. And this activity must be constant and pervading, lest life should be stopped by some lump of rest or carcase remaining on its hands. Mo- 104 THE HUMAN LUNGS. tion or vibration therefore in various degrees continually sways the organism, and shakes it out of the rank of death- like things. Thus it is always on the tremble and tiptoe ; its motion its main essence, and ready for obedience, as a servant all ear, eye and sense watching for command. This could not be the case if the body or any part of it were at rest. The rest w^ould require to be broken, and the body to be roused, before it could obey, and a thousand volitions would fail before one was brought into effect. But by means of the lungs which keep everything on the move, the man is ever ready for living operations. Thus the quickness of the body's service depends entirely upon its response to the animations of the lungs. Or life is founded upon motion, and the motion is evoked and main- tained out of rest by physical life, animation, or in other words, pulmonary breathing. Thus far we recognize a scale of physiological truths pertaining to the respiration, and which we may distin- guish into vegetable, animal and human. The doctrine which recognizes the lungs as providers of air, is on the vegetable level ; well for it if it does not think that it is talking about men when it concerns only cabbages. For plants are like men in this particular, of taking in and giving out air. The doctrine which regards breathing as of use for motion, belongs properly to animal physiology. Lastly, that doctrine which considers the psychological part of breathing, or the manner in which the motion em- bodies, represents and carries out those faculties of thought, feeling and action, and those destinies that are peculiarly human, is proper human physiology, j So each thing is named and characterized from its own essence, and from nothing either beneath it or above it. This concludes our present study of the effects that the SUMMARY OF MATERIAL BREATHING. 105 lungs produce upon the exterior, and thereby upon the interiors of the frame ; we observe that they endow every organ with outward life, courage and spirit, and call forth its talents in its daily work by the influence of attraction. And the attraction being most general, is common to all the members, which therefore conspire or breathe together for realizing the goods of life, and thence come under a genuine law of association. Now as truths always point out duties, there is some- thing immediately practical which arises from our view of the importance of the movements of the lungs. If each organ contributes its share to the ensemble of life, each demands a special care in the maintenance of health, which is the wealth of life. Much has been written, and justly, upon tight lacing, as injurious both to the development and stability of the body. But if our ideas be correct, the duty of leaving the chest and the body free, becomes ten- fold more imperative than before. If motion be the essence of the life of the organs, and if it extends to the whole frame and to the limbs, then all articles of apparel may fairly be supervised and limited in their pressure, in order to give our persons their lawful liberty. In this case the emancipation of the body itself is a subject of individual and domestic politics of the utmost importance, and the science of every organ should wring a progressive Magna Charta of dress from the kings of fashion. It is another proof that we speak the truth, because it tends so directly, yet so newly, to reinforce our old duties, which is an ex- cellent test of truth. There are in fact as many kinds of public health as there are different organs. There is one which should be represented at the board of fashion, as having a veto, and establishing a precedent upon whatever is enslaving in dress. And it is not to be doubted that in what we wear, equally as in what we are, grace, pleasure F3 106 THE HUMAN LUNGS. and beauty are compatible with freedom, and with freedom only.* But dress is not the only thing that coerces the frame ; or rather I should say, the body itself is a dress which under certain circumstances may oppress and hinder the breathing. A " belly with good capon lined," is a gar- ment difficult to ensoul. Over eating is a tyrant against motion. It impedes the play, not only of the lungs, but of the other members. A mass of crude food is like an avalanche of stones descending upon a country, which buries the soil under dead materials. How plainly do we see the small life in the scant breath of the unwieldy bon- vivant, whose lungs have porter's work to do in lifting his disproportioned paunch. So it is that liberty and temper- ance are among the natural commandments of the lungs. We have now spoken of the first commerce of the lungs with the body ; it remains to consider some relations which they maintain with the senses and the other powers, that is to say, with the faculties of the brain, and by which they again influence the bodily organs. Now the material senses inspire the body with its first proper life, and concur with the pulmonary inspiration. For beginning with touch, we find that pleasant contact which soothes the skin, is accompanied M r ith full breaths, sometimes running into deep sighs if the sense be pecu- * All parts of the body may be smothered or suffocated if confined. This is often seen in disease, and particularly in delicate and nervous females, who begin to gasp if there is the least pressure of physical restraint, and a touch sets them off into hysterical movements, the feeling of suffocation reacting from the circumferences or limbs to- wards the centres. Life in such persons is an exquisite balance which appreciates quantities of compulsion and restraint that make no sensi- ble impression upon hardier organisms. THE BREATH OF THE SENSES. 107 liarly grateful ; and in extreme cases of the kind, inspira- tion almost obliterates expiration, which survives only in gasps and nrvmurs. Painful contact on the other hand straitens the hmgs, and causes the breath to be held as long as possible. In short we breathe in the touches that delight us, but confine to their first place of invasion, and shut away from the vitals, the discords or agonies of our skins ; and this by fixation or resoluteness of the lungs. Respiration then draws up the sense of touch towards the general sensorium. It also sucks in the sense of taste to the same goal. For taste lives when inspiration is pro- ceeding, but when we breathe out, or stop the breath, sapid substances do not make their proper impressions. We keep back breath when we swallow drugs, and the nauseous taste is not drawn into our consciousness. At meals, however, we breathe with satisfaction, for the cir- cumstances are inspiring ; and tending, as they do, to en- large the man, they set his machineries in motion with a life of extra breaths. Smell is inspiration in its highest case ; the nose is a lung planted upon the brain, to feed it with perceptions and excite it to operations. Air and scent are inseparable companions. To breathe therefore involves to smell, the one function following the other up into the brain, and down to the bottom of the lungs. The motives to breath furnished by these three senses make inspiration deeper and larger than it would otherwise be (p. 88), for pleasure takes great lungfuls ; thus they ani- mate the lungs with superior life, and the organization is opened by the senses through the lungs to a degree beyond what insensate lungs could effect. As for the senses of hearing and sight, the lungs do not so directly aid them, because light and sound are above their attractions. Their active offices terminate with the blood and the air ; only their passive offices extend to the ether and the nervous 108 THE HUMAN LUNGS. system. For hearing and sight, so far as they are essen- tially acts of attention, are best transacted when the breath is held ; and indeed impressive sights and sounds tend to suspend it. We observe then, with regard to the senses and their connexion with the lungs, that touch and taste browse in the fields of inspiration; that smell, a winged sense, flits with ceaseless play between inspiration and expiration ; and that sight and hearing, concurring often with suspension of the breath, live above the lungs in the airless calms of the brain. Touches and tastes we breathe in ; smells we scent, or breathe in and out ; and sights and sounds we do not breathe, but see and hear, athwart the air, either in spite or in the absence of its proper motions. Thus much for the passive immission of the material or pulmonary senses. The senses however have an active condition in which their sensations are perceptions. In this state they partake of the common law of the two higher senses, and are awake and efficient at the times of suspended respiration. For active sense is a breathless power, and does not draw in body, but puts forth soul. Thus touch as a mental product is tact: it turns the tables upon its objects, makes itself critically harder than they, and resists and rejects, picks and chooses their impressions by deliberate inquest. The breath awaits while the steady- fingering thought explores, and then inspires, not whatever comes, but precise information. Let the reader observe himself when he is feeling for such information, and he will find his curiosity rejoicing in periods of suspended lungs. In active taste the same rule obtains. We no longer draw in the pleasant flavors by mouthfuls, but dis- parting the tongue for special acts, we make little sucks and respirations of the palate upon specimen morsels ; we fill the decent sense with judgment, taking small account THE BEEATH OF THE SENSES. 109 of pleasure; and holding the general breath, we calcu- late the result, undistracted by the lungs, in its smallest figures. Tasting, then, as contradistinguished from taste, is carried on in the intervals of common breathing. So also is smelling, which works its problems upon minute quantities of odors, shutting away the volumes ; actively we exert our smell upon mere snatches of scent made to run hither and thither in the inquisition of the nose. And as we said before, we hear best in breathless attention, and see most observantly when the eye-thought gazes, un- shaken and unprompted by the lungs. It is also to be noticed that the voice, which consists of perceptions freed from the mind, and launched into the air, is made of the material of the expirations. The mind is breathed out into the social world by the expirations and their pauses, and not by the inspirations.* The sum of these remarks is, that the exercise of the senses is rhythmical, chiming with some part of the respi- ration of the lungs ; either with inspiration, expiration, or some level or pause of the one or the other at which the breath may be suspended. And as the senses belong to the brain, evidence is afforded that its animations, which comprise the senses, coincide with the respirations of the lungs, f * Oratory especially requires the management of the breath, or the economical guidance of the expirations by the conceptions. If you spend your air too fast, a part of your in-coming air will go to pay off the extravagance, and you will probably be in nature's debt through- out the speech, presenting more or less of the phenomenon of a person who has " lost his breath." To " lose the breath " is to fall into an unnatural rapidity of inspiration and expiration, which will not be governed by the will, in which case the mind has pro tanto lost the power of dispensing the air. f We have a further proof of the consentaneousness of the lung movements with the brain movements (pp. 48 52), in the fact that 110 THE HUMAN LUNGS. Passing to another sphere, we may glance at the con- nexion of the lungs with the passions. On this theme it may be sufficient to say, that the breathing varies with every emotion ; a circumstance which may be verified in experience, by noting the respiration at different times. If we could remove from the language of passion all reference to these organs, we should cancel I know not how much of its expressiveness. If we could take the variety of the breath itself away, the man, the bigger he was, would be the more an unmeaning lump. Where would mirth be, if it lost all its laughter ? What would become of hope, if it had no dilated breast ? What would be the plight of love, bereft of its delicious sighs ?* How could pride exist without its hardened chest and swollen throat ? Or rage the voice, proceeding from the head of the lungs, is the voice of the mind, and images its thought or corresponds to its animations. But if in this exalted function of air such correspondence exists, does not the lung air correspond in its times with the brain spirit, equally with the larynx air, which is the voice. If the top of the pulmonic wind answers to the surface of the brain spirit, or, in other words, the voice to the mind of the moment, does not the correspondence run upwards and downwards, and does not deep call unto deep through silence more than through speech, and the spirit above to the spirit below through the lifetime as well as through the second ? Do not our little harmonies swim in great harmonies, which are not ours only, but creation's and the Creator's ? But upon this subject we do not dwell, because we purpose to treat of the voice on another occasion. * Here we may remark that the spirit of the passions and actions, nay, of the states of man generally, may receive its formula from the breath of the lungs; for the breathing is a representative phenomenon, and is to action what words are to thought, and what tones or music are to feeling. If we hear the breathing of those whom we do not see, we infer to a certain degree what they are doing, and their general tranquillity, or the reverse. And this is a walk of observation that may be cultivated to almost any extent. In very susceptible persons, the inferences drawn from the breathing of others are wonderful. THE BREATH OF THE PASSIONS. Ill without his choking breaths ? Or anger without his tem- pests ? How should our poor weariness endure, if it had never a yawn to console it? And how would joy and gladness fail if their healthy bosoms did not swell with trembling airs of the clear blue firmament, eager to reas- cend in songs ? But these are only a few of the presents that the lungs draw from the mighty winds to bestow upon their brethren, the passions. The law is this. Each infant or dawning passion disports itself first in the brain ; atti- tudinizes there to the top of its bent in the chambers of imagery ; observes and admires its goodly appearance in the mirrors of fancy, and is king uncontrolled in its own little cortical spheres. Then as the lungs are plastic as air, it descends into the theatre of resistance through their conve- nient mid- way, and shapes and crystallizes the wind for the moment into hardness and strength, softness or gentle- ness, sighs or fulness, or any of the other forms which the dramatic occasion requires, or the muscles and limbs de- mand as a ground for peculiar action. For each emotion it hews the body into a different block, wherewith the emotion pushes its way in the world. In a word, the lungs are the bodily arena of the passions ; they give shape to our impulses, increase and deepen them, and begin to carry them into works. In inward gestures and deeply silent murmurings they first unprison the words and deeds that are at last to resound through history, and push the nations to their goal. But to trace the special inhabitation of the passions or brain spirits in the breaths or lung spirits, will require a volume.* It may however be noticed that the inspiring passions concur with the pleasant senses, and are housed * We have made some progress with such a work, but the field is of an unexpected magnitude. 112 THE HUMAN LUNGS. in the inspirations ; that the depressing passions tend to lower or kill the breath; as extreme fear, for instance, which makes us aghast or ghostless, and causes the lungs to forget their reciprocations : and that the middle passions have a middle effect. And it may further be noted that the peculiar respirations which are the bodily spirits or tendencies of the several passions, have the office of pro- voking the latter, or reacting upon them. For example, in rage, does it not begin to fume and swell in the lungs ? is not "the steam got up " in those locomotives ; and does not the brain, with tempests in its hand, not only lash the body into the pace which answers to its own madness, but feed the madness out of the wind- swift speed ? These passionate breaths, although not classified by science, are known to the observing, and interpret the underplay of the feelings, even when speech and smiles dissemble. In this field then the lungs have several offices. By concurring with the passions they raise the frame into each, or com- municate it to the blood and secretions, enabling the mind and body to keep company through all changes, or to be impassioned together. By the same concurrence they amplify the field, and stimulate the fire of the pas- sions, fanning it with the oxygen of their spacious move- ments. They also enlarge the material body to the scope of animal life, which is passion, causing stomach and liver to flame and expand with it ; as we saw in the case of the senses, that they extend the enlarging breath of sense through the lungs to the same material organs. The lungs then lend the passions of the mind physical force, and the organs of the body passionate movements; and by this means they make the one and the other, or the brain and the viscera, into perfect bodily animals. But the imagination also, which is the intellect of pas- sion, builds especial houses in the breath, or, as it is said, THE BREATH-BUILDING OF IMAGINATION. 113 forms air castles. These are its own expirations, in which it revels, for what it draws in is nothing to it, but what it breathes out is all. It does not however expire either to do or to die, but to run after its breaths as they sail through the air ; not desiring to leave the world, but to propagate its image children in the universal imagery. The smoke of its lung-pipe keeps it busy with the plasma of a thou- sand twirls. It makes its objects out of its breath, and hence we locate it among the expirations. During such imagination, accordingly, the head is held up, and the breathing tube to the very mouth levelled like a barrel : words fly forth with arrowy straightness ; the inspiration is inaudible though sufficient, but the man pants audibly towards the unseen, and each pant externizes more of the breath on which the faculty pulls and feeds. When the breath-palace is built, the laws of gravity bring it to the ground ; whence air castles, as the frequent beginning of earth castles, are not to be despised; imagination being the proximate architect of the arts and sciences. We may formulize the respiration of this faculty by saying, that during its exercise the lungs take their airs to themselves just as the imagination represents its objects to itself ex- ternally. This lung conceit is one means by which the body holds its own sphere, and protects it amid the great fluctuations. Respiration has also a peculiar relation to the intellectual processes, which lie, it will be found, in fixity of breath, proper state of lungs, or suspended respiration. Among other reasons for this is the fact, already pointed out, that inspiration is a means of drawing up the bodily sensations to the brain ; for the body is as a sponge let down into the world, whose attraction upon the waves of Toaaterial sense is exerted by pulmonary inspiration. But in proportion as these lower influences are admitted, often in the same pro- 114 THE HUMAN LUNGS. portion intellect is drugged, and sleeps in the cortical beds. We speak of a familiar fact. But6ecause the mind has power over the lungs, it can handle the senses by their means, and prevent the floods of worldliness from pene- trating to the upper sensoria. So also can it stop the mounting passions. This it does by suspending the breath, and cutting off the supplies of sense and animality. Or, to speak more anatomically, the brain at such times refuses to be invaded by the blood, which contains the turmoil of the lower life : the cortical spherules keep it at arm's length : for it is to be remembered that the brain expires concur- rently with the lungs, and when the latter shut off the blood, the brain does the like. Hence it is that thought is still, and contemplation breathless : each involving, first, fixed breath, and second, a small expiring ; and so on, until the thought is traversed, or the effort ends and begins anew. Deep thought, then, where not given directly by heaven, but conceded to human effort, is gained by the descent of a ladder of expirations, and the body dies down into intel- ligence by this scale : the best of such perceptions come from the confines of expiration and the grave, which lies at the bottom of the lungs. Intellect, therefore, in this light, is the capacity of standing and expiring, and living still ; death to the body governing the body ; an infinitesi- mal immortality into which thought expires and expires, to brighten and brighten its lives. To the senses, sus- pended animation is suspended consciousness : to the intel- lect suspended animation may be life, thought and supreme wakefulness. For it lives when the body is gasping : its chosen sons, as they drag the world onwards, are verily at their last gasp, in the acceptance of their own mortal immortality. The intellect, then, through the lungs, puts the body down under its palm ; whispers to the sea of delirious sense, " Peace, be still !" and plays THE BREATH OF THOUGHT. 115 its melodies in the charmed air upon the whitest keys of silence.Jf Intellect touches so near upon trance, that the highest cases of either involve common phenomena, and exist in the same persons. But trance is complete suspension of the breath, sometimes for long periods. This suspension of the breath of the lungs involves the standing of the spirit of the brain, and the stand of this is the gaze of the intellectual eye, whose final and hard victory is to see. In some subjects, if the lungs are fixed, including the brain, the body can wait for breath and spirit for an inde- finite time. It still lives, because there is a standing spirit in the body and a standing breath in the lungs, which par- take of the fixity, or are charmed and entranced. These are cases in which life stands, and the proper spirit can go and return, because the animal state is safe and fixed. Nay, the time of the trance or separation counts for nothing. We do not know a limit to the duration of the body under these conditions ; it is as a day miraculously prolonged, when our sun stands still upon Mount Gibeon and our moon in the Valley of Ajalon. Nor do we know a limit to the excursions of the intellect on these holidays, when it visits its celestial birthplace, secure of finding its lungs and factories ready to start into reciprocation at a moment's notice on its re-arrival.* * The reader will notice that scientific experiments may be made by whoever pleases, upon the concurrences of the lungs with the mind and the body ; and that for this purpose no apparatus is necessary beyond observation on the one hand, and the possession of the human frame on the other. This, then, may be a universal science. In the same way we shewed, in the Chapter on the Brain (pp. 60, 61), that there are vivisections which may be studied without torturing animals, namely the divisions and sects of a certain creature which cuts up its own species and its own brains for us every day. 116 THE HUMAN LUNGS. It must be recollected that in these conditions the lungs are not emptied of air ; for expiration does not go to that extent, but plays upon a certain depth of the pulmonary reservoir, leaving the remainder undisturbed. The in- voluntary right of the lungs to the air is strongly asserted if we attempt to expire beyond a certain point. Otherwise, the body would lose its life size, the wedge of atmosphere would have ceased to open it, and the spirit crushed out of the body could not lift it a second time into the opera- tions of breathing. Moreover, in these conditions of suspended animation the chemical laws do not persist, but like the rest are sus- pended. Held breath concurs with held spirit, held blood,* held life and held time. . The tissues, particles and fluids, and the wind in the lungs, are entranced; the body is absent from chemical corrosions as the mind from animal provocations. The air is not required for exchanging pro- ducts with the blood, but for maintaining the level of the state, and serving as an elastic animus under the fixed attitude of the brain. And even when the air is expired in partial trance, it is not because it is vitiated, but for deepening the state, and as it were steering and standing in nearer to the shores and lighthouses of death. We now see what this concurrence of the lungs bestows upon the organs, for they all stand when the lungs stand, taking up their places as fleshly eyes in the attitude and body of the intelligence.-}- It is the interpolation of the * The heart indeed in itself, though not in its blood in the organs, is an exception to the universal concurrence of the frame with the breathing ; for although influenced thereby, it is not reduced, like the organs, to the pulmonic rhythm. But as we shall shew, it be- longs to another regiment of natures, and to a different discipline from the lungs. f The concurrence of the head with the body is provided in many SUSPENDED ANIMATION. 117 higher life and endurance into the organic movement ; breathless but deathless moments set in the midst of the ways ; but the moving harmony of the lungs and the brains appears to be at the basis of all. Let us take an instance of this concurrence from the muscular system, and let the subject of the experiment be walking. Now let him fix the eyes in a gaze upon any object. Soon the walk becomes slower, and the body is brought to a pause, as it seems, voluntarily. If the gaze be continued under favorable circum- stances, the will thus brought into the topmost muscles (those of the eyes), and which has rivetted the feet, will begin to rivet the muscular attention from above downwards. And although the eyes close, if the will be kept up, rigidity will invade the jaws, then the arms, and then the legs, producing a state like catalepsy. These facts are familiar to those who are acquainted with Mr. Braid's admirable dis- coveries in Hypnotism. It is upon this principle that lockjaw, attack- ing the high ranges of muscles about the jaw, runs down the inclined plane of the muscular system, locking it as it goes, and bringing muscle after muscle in tributary streams to constitute tetanus. And it is by acting on the still higher point of the muscles of the eyes, that this disease may be commanded from muscles loftier than its own origin. By the force of this inclined plane system, the expressions of the face tend naturally to produce the gestures of the arm and the postures of the body, which may be looked upon as torrents of will, that have come down at first in little streams from the mountain springs of fleshly action in the countenance. Thus the muscular frame is all made for concurrence, and forces which act upon one part of it, tend to be diffused through it, as through a continuum, but with a difference of function according to the regions. The expression of the face, which is the dial plate of the general mind, is the main spring and clockwork of the active body. Upon this prin- ciple, we see that smiles precede laughs,, that clenched jaws go before clenched fists, and, in short, that expression not only anticipates but also stirs action. These considerations furnish fresh evidence that the body is solidaire ; that whatever the head does, the trunk does in its way, and the limbs in theirs : in short, that man is so formed as to act only in wholes, each full size. In this way we are constructed upon the principles of poetic unity, the mind and the body being but one volume written out in the rhymes of the brain and the lungs. 118 THE HUMAN LUNGS. wear and tear of the tissues ; chemical moth and rust ceas- ing their gnaw, and incorruptibility paramount in the corruptible. So the body represents the proper mind ; the intellect sinks a shaft into the flesh, making it dramatic of the moments that we live beyond sense and passion. Man would not be embodied if that which is best in him were not bodily set forth. The lungs then introduce this tran- scendent representation, and the moral virtues that inhabit this order of intelligence commune with the organs through their means. They put down the body, give it the lesson of death or self-denial, and frame in it still windows of experience opening to the timeless state. They emancipate the mind for the occasion from the stimulus of the passions. In short, they embody the moral intellect, or give the frame a hyper-animal life not lying in physical movement ; and they intellectualize the body, or contribute their share towards constituting its peculiar humanity. If sense, passion and thought are in a certain dependence upon breathing, so also is action to at least an equal extent. All fineness of work, all that in art which comes out of the infinite delicacy of manhood as contrasted with animality, requires a peculiar breathlessness and expiring. To listen attentively to the finest and least obtrusive sounds, as with the stethoscope to the murmurs in the breast, or with mouth and ear to distant music, needs a hush that breath- ing disturbs ; the common ear has to die, and be born again, to exercise these delicate attentions. To take an aim at a rapid-flying or minute object, requires in like manner a breathless time and a steady act ; the very pulse must receive from the stopped lungs a pressure of calm. To adjust the exquisite machinery of watches or other in- struments, requires in the manipulator a motionless hover of his own central springs. Even to see and observe with an eye like the mind itself, necessitates a radiant pause. THE SPIRIT OF ACTION. 119 For the negative proof, the first actions and attempts of children are unsuccessful, being too quick, and full more- over of confusing breaths ; the life has not fixed aerial space to play the game, but the scene itself flaps and flut- ters with alien wishes and thoughts. In short, the whole reverence of remark and deed depends upon the above con- ditions, and we lay it down as a general truth, that every man requires to educate his breath for his business. Bodily strength, mental strength, both lean upon our respirations. The co-operation and state of the lungs in mental effort is represented on a large scale in their strain during par- turition, in which they let out the air in groans from the relaxed and almost closed larynx. This, which is the type of all labor, as child-bearing is the image of all productive- ness, is earned on by holding the breath, and determining it not towards the air but towards the obstacle ; the portion of air whose spirit is broken by the effort escaping imme- diately afterwards in the form of a broken breath or groan. The air, which exercises everywhere a universal pressure, exerts in the body, when compressed by the muscles, a universal push, and is a medium in all our fruitful pangs, whether those by which children are born, or those by which thoughts, which are the mind's children. For the brain is the womb of the soul, and the held breath during the effort of thinking tends to exclude the desired thought when the determination of all the parts strives towards the right part of the brain. After the effort comes the groan, which shews that the breath has no more will, but has done its work. It would seem that in labor, the rhythm of the uterus takes the lead (pp. 100, 117), in commencing the breathing, and the lungs are obliged to follow the strong contractions by shutting their apertures, and laboring pre- cisely like the womb. The nervous system and the mind labor also at the time in the same ratio. There is neither 120 THE HUMAN LUNGS. the free child, the free mother, the free breath, or the free spirit, until the birth takes place ; but the bondage of all is common and oppressive to ensure the emancipation. We remarked before (pp. 79, 109) that the respiration is divisible into four terms, namely, inspiration, the pause or satisfaction succeeding inspiration, then expiration, and then the deliberation or pause which follows expiration. And we have now shewn that inspiration concurs with the agrements of sense and feeling. This is the first motive of the lungs, or the pulmonary atom of the pleasures of the world, compounded however of two elements, the nose- breath and the mouth-breath, the former to please or in- spire the mind of the brain, and the latter to please the mind of the body. This term, if persisted in, leads to swoon, from defect of expiration ; whence swoon is the prolonged or compound atom of the pause after inspiration. The pleased lungs are so gluttonous of this world's life, that the world, bent upon equilibrium, swallows and drowns them in this swoon, which is the ocean of sensual satisfac- tions. Expiration, however, concurs with the spiritual life, and is the condition of intellect, or of dying daily. And the pause which follows expiration, the refusal to breathe in from the surface, and the stand taken in the depths, is the atom which in its least form concurs with abstraction of thought, but when compounded, runs on into trance. The likeness of this in the animal world is hybernation. Thus every thought is a little trance, and every pleasure an initial swoon, as we shall presently see that each fair breath is a little life, whether of sleeping or waking. And thus; if the breath is given in inspiration, the spirit is im- pressed upon expiration ; for the spirit of humanity is not in the breath which is taken in, but in that w T hich is given out ; the former being planetary, but the latter psychical. There is, then, something beyond foul air which man THE SPHERE AROUND THE LUNGS. 121 breathes forth ; for the air is charged with the vital move- ments ; there is the character of the life wrought into the atmosphere, as drawn upon the organs. And here again we turn to chemistry, and demand of it, besides the ana- lysis of average breathings, the contents of the accidental breaths emitted in peculiar moments ? We ask of it whe- ther the breath of mercy is foul to the lungs of those over whom the mercy leans ? Whether the laws of vitiated air hold here, or no ? or whether there is an angel-galvanism by whose tension at such times the body and the air fly clean above matter and its pedantries ? Whether there is any antiseptic significance in the fact, that Jesus breathed upon his disciples, and said, receive ye the Holy* Ghost ? or in this, that we swallow the breaths of those we love, and listen to the breaths of those we venerate ? Whether the last breath of beloved friends, caught in all unsophisti- cated times, is exhaustively represented by the formula, + H + C ? Whether the blood and the body decompose in the same ratio during all states of the mind ? or whether there are not moments, and degrees every moment, in the ratio of destruction ; moments of immortality in which no waste occurs, and all intermediate grades between these and physical ruin and decay ? And further whether there are not facts in human society, as of intimacy, closeness of persons, community of breaths, which shew that the ex- pirations of one man are in a cheerful and life-giving sense the inspirations of another ? But chemistry can no more analyze human air, than animal air and vegetable air, but it throws them down before oxygen, hydrogen and car- bon, the insatiable Cerberus of the laboratory. On the contrary, we induce from larger facts, not otherwise ac- counted for, that the motions of the intellect and will, or the better faculties, are the salts of the human air, which varyingly wrest it from the gripe of the chemical laws. 122 THE HUMAN LUNGS. We induce that humanized (p. 104) lungs have a duty to perform to the social sphere outside, and that the expira- tions from such pay back the world with usury for the simple air which the inspirations take away. This, how- ever, cannot be confirmed from the steams of crowded assemblies, but from the closets of privacy, and from the exceptional facts and moments in which neighbor comes close to neighbor, and man hangs as a lover upon the breath of man. Indeed it seems remarkable that the influence of the vegetable world upon climate, and of electricity upon the atmosphere, should be admitted, and that no influence of the human world of a similar but higher kind, should be suspected. Are the thought-movements and the will- movements sooner absorbed than the sound movements? do they pattern and sculpture the air with less efficiency ? or in what do their modifications end? Is the music of man's brain and lungs of no Orphic power in the tenseness of God's created harmony ? But the time is not yet for these and similar questions; they are however as doves which float already in the poetic air, and the dry land of science is about to appear, upon which they can alight. Quitting this consideration we have to say, that not only the moments but the lifetime are parted into breathing spaces ; for the first breath and the last are the bounds of this existence, and the ends shape the means, or constitute the career itself into a series of breathings. These larger lines of breath consist of habitual modes of respiration answering to the tone of life, and constituting pulmonary morals, manners and customs. They are determined by the mixture of the four terms already specified in various proportions, and by the velocities and spiritual qualities which are carried into these. In this way the lungs move and associate individuals, as we before noticed that they THE CONSPIRING OF MANKIND. 123 move and associate the organs (p. 103) ; for only those who conspire or breathe alike are together in thought and in- tention ; and the society of persons tends to last only so long as they have common respirations. The attempt to prolong companionship beyond these limits disarranges the springs of the organs ; the presence of heterogeneous per- sons straitens our breath, or as we say, dispirits us. But we shall have to recur to this subject, of discord or want of tune in breathing, when we speak of Public Health, which means public association on the principles of the organs. In mechanical cooperation the unanimity of breathing among the workmen is essential to oneness of effort. Hence the rude cheery work- shouts that sailors extemporize in weighing anchor, masons in hauling up blocks of stone, and so forth ; and hence the adjunction of music to batta- lions, which require to have one spirit and step. A mass that is to be as one man must breathe alike in its parts. The same thing is true of society, or unanimity in its higher departments. The heard breath of your neighbor is moreover regulative and contagious upon your own, and increases and realizes the union of which it is the effect, especially when the breath of all is represented in an audi- ble rhythm. In this way the Eddas and poetries bind mankind into sheaves, being as common respirations or great world-tunes, the sum of beginnings of musical acts from the sailors upon the river of time. And here we may observe that throughout life the lungs exercise the dramatic office of producing in the frame those motions which answer to the periods of existence. When the man is to sleep, the lungs give the effigy of sleep in the system, and the slumbering soul is imbedded in a slum- bering body. When he is to awaken, the breath of morn- ing sparkles from the lungs throughout him, and master G2 124 THE HUMAN LUNGS. and servant rise in a breath for their unanimous day's work. As a child, his innocent brains find a sisterly help- mate in his playful and peacebreathing lungs ;* his blood and vitals, like his pretty face, are full of sweet and inno- cuous motions ; his lungs transplant the childhood to his tissues ; and soul and body, head and feet, he is all one child. The youthful spirit again and the youthful body are each the others, and the bond between them is still lung, attraction, or the lover's link. When he is a man, his lungs too put away childish things ; heart, liver, brain and bowels are engaged in manly movements ; the breath of manhood strengthens him ; his vitals are adult and per- sonal ; and the man lives well in an outer man who is the body of his powers and the servant of thoughts. Age steals upon him in the wants of a second childhood ; he begins to breathe fainter ; his old days are a young lesson of living above the air ; and his last breath sets the body free as no longer able to move in his service. And so from the beginning to the end of life, the body conspires with the mind, through the friendly intervention of the lungs. But in speaking of the four parts of breath we have separated qualities which are not incapable of union. Thus we have regarded expiration as of spiritual significance, and inspiration as of sensual, whereas these two may be balanced, and the just lungs in consecutive moments may shew them to be equal weights. Pleasure indeed makes inspiration, and energy and resolve animate expiration, but pleasure and energy are sometimes united in the joy of * Let the reader try to breathe like a child, and let the auditors of the breath decide whether he succeeds, or no. There is indeed in adult breath such a peopling of multitudinous thoughts, such a tramp of hardness and troubles, as does not cede to the attempt to act the infantine even for a moment. EVEN BREATHING. 125 work, and then the inspiration and expiration are at one, and the man breathes con amore. Thus in what we call happy moments, when we do our little miracles, put in our least imitable touches, and sing our best songs, we breathe- as if we breathed not ; there is no greed on the one side of the lungs, or effort on the other, but levelness of taking in and giving out : the gold of inspiration is minted with the die of action, and it passes through expiration without a challenge, and so expiration itself becomes plenarily in- spired. In this state both sides of the Janus of breath, peace and war, pleasure and energy, are combined in hap- piness. The highest moments and emotions are of this balanced order ; innocence, peace, and the perfect qualities, produce equality on the two scales of the functions of the lungs. Man inhabits the world aright, in this equilibrium between his passions and his actions, whose hours are as the immortality of his childhood and the genius of his life. And innocence, peace, and all the sweet even-breathers glide down through a variety of states into that which is their compound atom, sleep, the fountain into which they descend, and from which again they arise like love born fresh from the morning ocean -waters. In this sleep there are many depths of the level breathing ; the child's, which scarcely stirs the surface of his tiny lake of breath ;* the man's, which goes deeper, but always according to justice and equation. Thus in the fair proportion of the four terms, we locate the model states of waking and sleep : * The laws of the diffusion of gases are adequate to produce the function ordinarily assigned to expiration ; but the motion of expira- tion, and its constant variations, are additional to this function, and to be looked upon as livingly-mechanical, or, in other words, psychical phenomena. Moreover, the chemical impregnation of the air with the breath, is a different thing, both in regard to space or extension, and time or permanence, from the vital impregnation of the air with 126 THE HUMAN LUNGS. even-nrindedness, which gives all things their places, and is the ever- vigilant balance of the soul ; and even-bodied- ness, which lays us along under our happy coverlets, and makes our slumber as still as our good conscience. This state is the rare complement of lop-sided pleasures and duties ; of the swoons of delirious sense, and the trances of the ascetic soul : and he breathes best who most completely enjoys it. We have now seen how fully the breathing is inhabited by the living powers, and how our breasts heave with our natures and our minds ; in other words, how the faculties of the soul go up and down through the arches of respira- tion. We have seen what a thread of human life courses through the actions of the lungs, and by them is transferred to the organs. One function then of the lungs consists in equating the body with the soul, and momentaneously keeping up the equation. But these organs produce also the momentaneous connexion between the psychical and corporeal frames. For if it is they that give motion to every organ ; that attract material sense from the world towards the head; that represent all emotions, passions, and imaginations, and give them to the body; and by their power of station are the footstool of thought and will, first submission to which they likewise embody : if it is they that sleep with sleep and that wake with waking : again, if it is they that prepare the body by a model agency for every action ; and furthermore, that draw down the real motions : for the material breath falls in dregs which soon pass away, while the mental breath endures, we know not how long : for as the poet says of the Forum, " Still the eloquent air burns, breathes with Cicero." Poor Byron ! Even for the sceptics, as soon as they begin to sing, nature is either nothing, or haunted ! PULMONARY CONNEXION OF BODY AND SOUL. 127 spirit of the brain into the body, or, in other words, pump us out of our spiritual reservoirs ; then it follows that it is the lungs which physically connect the organism with its animating soul. And what connects the lungs them- selves with the same soul is, that their movements corre- spond with those of the brain ; whence the feeling which we all have, that in breathing we are living. We have endeavored throughout this doctrine to follow learned Vestiges, and to shew that knowledge, like organi- zation, may pass through " developments :" that science is sometime a cold-blooded animal, and sees respiration from a fishy point of view, as is the case with the existing physiology, whose doctrine lies motionless in the seas of knowledge, and without proper breathing takes in and gives out the little and casual air which is dissolved in the waters. But it is time for the scientific fish to undergo another stage, and putting off the piscine, to busy itself with warm-blooded motions. And finally the fish must become a man, and derive the pulmonary motions from another kind of warmth, which in old wisdom is the Soul. This will be something practical in the doctrine of " deve- lopment." For assuredly the lungs give our bodies a series of endowments which are not animal ; comparative anatomy sheds no light upon these, unless you reckon the anatomy of the soul in the series of the comparisons. And this leads us to speak again of the lungs as space-makers ; a function of which we are so jealous, that if we be confined in breath, or restraint put upon the chest, arms, legs, and every muscle fight with convulsive energy against the oppressor. For human liberty is doubly grounded, in the body, and in the soul. And in the body, the liberty, by virtue of the airy and opinionated lungs, is given attrac- tively to every organ, as we shewed before. Thus each 128 THE HUMAN LUNGS. faculty has its proper size, or liberty, which, is the air it breathes ; and if it has it not, it dies. Breathing makes the living body bigger than the corpse. Sense makes the body roomy enough for a lustier exercise of powers. The passions dilate it to the scope and size of public strife. Thought again diminishes it, because thought does miracles in minimisj and alters worlds, if need be, from the throne of poverty, or from examples radiant through dungeon- walls. But free thoiight, by the blessing of God, is a liberty beyond liberty. In truth each faculty, and each fixed opinion, spaces the body to suit its own play ; whence sects and parties wear their very bodies for liveries, and are dry or juicy, liberal or stinted, sensual or spirited, according to the openness that their tenets put into their lungs, and their lungs into their livers and frames. Much has been written about the cause of the first breath, as though it had not the same cause as all the breaths, being derivable from no other source than the motion of the organic mind in the head. To be born alive, is to be born with a germ of mind related worldwards ; to have such a spark, is to have a rhythmical motion of the brain directed bodywards, which motion cannot subsist or be promoted without a seconding rhythmical action of the lungs. There is no need of any other principle than the harmony of the lungs with the brain to account for the first act of breathing, which in fact is the beginning of our life. We take the first breath because we choose, and we take the ten thousandth for the same reason ; and when we do not choose, as in sleep, it is as if we did, because Provi- dence backs our wills with similar wills of His own, then called souls, which fill up our intervals, and make our lives coherent.* Before all enquiries into the causes of begin- * Here it may be noted that the lungs correspond to both the THE LIGHTS. 129 nings in the body, there stand two inexorable axioms : 1. The soul ; and, 2. The consentaneousness between it and the body. After this, the explanation of any given first effect, as, e.g., breathing, lies in our knowledge of the functions of the effect, which account for our using it. The argument of the human body is like the body, living; or every physiological problem may be put thus : Why does the soul do so and so ? Before concluding, we revert (p. 90) for a moment to the statical function of the lungs, to remark how these organs distribute life into strata. The vulgar call the lungs lights, and so they are; for the belly gives us gravity and links us to the ground, but the lungs give us levity, and lift us towards the air. Erectness of attitude (p. 99) begins in the chest ; we give ourselves the airs by which we strut, first in the breaths and last in the muscles. The second power of erectness is flight, such as we see in birds and insects, which conspire with the air so well, be- cause their bones and tissues are open to it ; besides which they can rarefy the air, both by their heat, and by the cupping action of their powerful muscles upon the closed cavities of the frame. Their feathers too are outward air cells, answering to the universality of their lungs within. Man seems heavy compared with the swallows and the eagles. Yet with faiths for his second lungs and sciences for his wings, he is the lightest of the tribes ; and if he seems chained to the ground now, it is because these, his lives, have not been admitted into his bones. His lungs, which may hang in the air (p. 90), are a prophecy that cerebrum and cerebellum. For their breathing may be either involun- tary or voluntary. In this respect they combine in a single organ the functions of the accidental and permanent life, or of the will and the nature (p. 58). They therefore cement the bond between the two brains by a marriage of their motions in the body. 130 THE HUMAN LUNGS. his body, and bodies of his body, may be similarly sus- pended. For what are his lungs but a balloon corded down into his flesh, of which, when fully inflated by the spirit, his body is the car? The earth belongs to the human lungs as birthright and natural gift ; they are " tied" to have it. The ocean belongs to the human lungs by the held breath of the diver, who is at once the fisher- man and the fish. The air belongs to the human lungs by want, prophecy and science ; by the leading of Him who has ascended already, and trod the lightness of the crystal climes. The spirit belongs to the human lungs, by their sails filled with every sense, passion and thought; by the trances of man, which are above the air, and by the breadth of the supernal life, which does not disdain the concurrence of the lungs. And peace and greater powers than these belong to them in all and through all, as the gift of God, who breathes his blessings upon his chosen. It is good to look to the ordinary language of mankind, not only for the attestation of natural truths, but for their suggestion, because common sense transfers itself spon- taneously into language, and common sense in every age is the ground of the truths which can possibly be revealed to it. If there be no common sense to welcome a truth, that truth, however vivid, is lost in the darkness of the mind. It is of no use to speak it. If we set our ideas of the lungs before the glass of language, they receive, to say the least, a cordial welcome. For undoubtedly most of the words expressive of life, are borrowed by analogy, either from the atmosphere, or its organ the lungs. Thus anima- tion is the Latinized form of breathing ; an animal, a living creature, is a breathing creature ; an animated body is a breathing body ; the soul also is an anima, a breath ; the mind or disposition is an animus, also a wind or breath ; we receive inspirations, which are the breathings in of high THE TEACHING OF LANGUAGE AS AX ORGANON. 131 influences ; we have aspirations therefrom, which are our voluntary breathings back after the good which has been shewn to us $ we are spirits, that is again to say breaths or attractions towards one Eternal Object who through our finite organism draws us to Himself. Finally we read of the breath of life that was breathed into the nostrils of our first parents, and man became a living soul. Now we have attempted to shew that these phrases are nature's own analogies ; that the functions of the lungs are so identified with that motion which is the representative of life, that life cannot be imaged save in words borrowed from the lungs and their august ministrations. In this respect I trust to have the whole of the depositories of past truth and genius, the old wives, upon my side, which will atone for the absence of others, because there are no better beginnings of physiology than these old wives' tales. Most of them are point blank true, and will come out more and more as they are wanted, constituting in time the last novelties of a sublimely scientific age. But when shall the theme be ended of the atmosphere of the microcosm ? Or what is the entire drift of these ^Eolian harmonies let out upon the sciences from the lungs? We can only further say, without pretending to a formula, that the planet-air is the double of the lung-air. For in the human sphere the viscera stand as trees with the lungs for leaves, and quiet absorption subsists in this vegetable degree. But furthermore, the superincumbent lung- air presses down upon the vitals, whence the physics and me- chanics of the atmosphere run parallel with those of the lungs. But again, the lung-air has its system of winds, beginning whencesoever the will pleases, and blowing from the poles either of matter or spirit, love or hate, passion or consideration, and making the climate of the ruling state to travel through the whole body. Then also* the lung- air 132 THE HUMAN LUNGS. is as full of the soul as the world is full of the sun. And lastly our little atmosphere in motion, like the great at- mosphere, rubs our atoms against each other everywhere with electric rustle and collision, and by its congenial fric- tions magnetizes the assembled parts, and they open the cases of the life-gems. But for the rest, the voice would cease to speak before these truths are exhausted that chant themselves up from the deep well of the lungs. For ever and anon as we listen we hear a more inward chorus. At least we have seen that the body lives in alternation ; that the voluntary moments of the machine are the breath- ings ; that thus time is meted out in our frames, and we are introduced as finished clocks of time into a world of time of measured changes. So it is that we are tuned to the universe, which exhibits the same play in its furnitures through all their fortunes. And so it is that we are fitted to our place in humanity, which expands and contracts from epoch to epoch, from idea to idea, from institution to institution. All things are as cycles of not an unending but an ever-during providential change. Their existence in time consists in their motion and change. Merely sub- sisting without moving onwards, would involve their rejec- tion into the rear, among the shadows of the past. They live in the present by breathing as the universe is breath- ing. Moreover all things have their own space, their means of liberty, the play- ground of their being. And the wonder of the body lies in this, that it brings man into the whole order of the world, without surprise, because with full preparation. If he is to be subject to day and night, there is day and night already written upon his members ; half his moments are a rest, even when work and thought are in their fullest power ; his aims and desires have their gay, fresh morning, their high-flown noon, dubious twi- light, meditative evening, and night of cessation or repose. UNIVEKSALITY OF THE LUNG-PRINCIPLE. 133 If lie is to ride in the train of the fourfold seasons, the reins which direct the procession pass through his own soul and system ; he finds that there is a season for all things human ; that the body has its spring, of refining delight and happiness ; its good summer ; its fruitful au- tumn ; its winter, whether of needful rest, or unhappy torpidity ; and this, on the minute scale of hours as well as in the circle of the threescore years and ten. If he is to live in the revolutions of his own societies, his mind and body are still at home, for they themselves are nothing but revolutions. And if he is to die to expire at last does he not die in his atoms, and expire many times every minute during his longest life ; and carelessly lets go his breath after each inspiration, secure that the outward and inward powers are ordered to revive him from the fast em- brace of this mimic death. So he is a genuine part of the series of nature ; a true heir of time ; a life depending on variety ; a moving accident of progress ; a being of alter- nate cycles ; one to whom nothing is alien that happens or can happen in the wide creation. This is owing to his body first, and subsequently to his mind. The lungs are the divine provision which introduces and accommodates him to the world of change. Let us then end by translating the lungs into thought and humanity. Every principle has a first name by which we lisp it in material representations. First it is an indi- vidual thing ; next a being with relations ; and at last it figures among the grand ends of existence. The world and man are the same principles, translated, as they rise from the ground, into other atmospheres, or into more and more universal languages. Form in the lowest degree, means life in the second, and love in the third, and intel- lect in the highest ; terms and things which are very diverse, and yet but one principle, full of resources, and 134 THE HUMAN LUNGS. shewing its face through different windows of the universe. The soul, an inhabitant of all heights and climates, ad- dresses the tongue of each to the creatures of the same ; and one word is a brain, another the lungs, and so on through the hieroglyphical polyglot of the body. Every syllable there has its mission, to make mind, to support mind, and to alter it. Good is the interpreter of the whole, and truth is the interpretation. What now are the lungs ? They are a yawning hollow in the top of the man, the sides of which cavern are alive. The world enters them bodily. Tendency to vacuum, which nature abhors, is their spirit. They draw us out into more than we are, and we shrink back as nearly as we can into our old dimensions. Reluctant vegetation ceases as they open, and life is born, crying. They are an engine added to the body, under whose draw it becomes progressive, and every space therein is enlarged, to take in more, and to live more. They pull open all the solids, that all the fluids may enter them ; and strain every nerve and bloodvessel into fresh activities and virtues. They give room and airiness to the inward parts, and set them to work in a daily larger sphere. Now these, in altered phrase, are also the functions of the understanding mind, which as it is opened, shews and causes new wants, and new wills and ways. Our wants are so many threatened vacua, according to the form of which, we open to the pres- sure of the truth, whether of nature or of heaven. The necessity to be more and better than we are, the divine dissatisfaction in which we live and move, is the germ of understanding ; it is the want which can never be done, but is to breathe and ponder on through incessant ages. The understanding, like the lungs, is no wind, or shadow, but the substantive power and voice of all our wants, call- ing us away to larger lives and finer occupations. It is HIGHER ANALOGUES OF THE LUNGS. 135 the consciousness of our position, and of how to change it 5 the solemn claim of the future on the present ; the beck- oning of the universe to the atom, to come up among the stars. This is the root of the lungs, this is the mind which they carry, but mathematically speaking, what are the powers? Millions of vesicles make one lung; greater millions of lungs figured afresh make one humanity. Here they are want again ; first, physical wants, necessities, the iron understandings which are the mothers of inventions ; the looms and hammers which must ever ply, or we lapse into nakedness and starvation. Second, and based upon the first, all the necessities of public progress which strain and distress the time ; domestic, political, social and spiri- tual understandings ; which shew us, in bold imagination, ideal commonwealths, built all of white justice, and bid us strive, although we die, to reach them ; Utopian societies, lovely and reciprocal, peaceful in the length of a redder sunshine, in plains beyond our travels' strength ; our own and the world's infancy, painted with agonizing truth upon the stormy skies of manhood, or the dark cope of age ; and with no desponding voice command us to be born again. These are signs and warnings, portents, or promises, in every understanding; there is no speech or language where their voice is not heard ; attracting, commanding, or threatening, to one and the same intent ; and airy or cloudy though they be, they stand in the breath of the eternal. CHAPTER III. ASSIMILATION AND ITS ORGANS. ORGANIZED beings grow from, and subsist upon, matter which is extraneous to themselves, and the fitting of this matter for the purposes of their lives, constitutes the pro- cess of digestion in a wide sense. In the human body, the immediate end of digestion is the blood, which is the foun- tain or beginning of the whole solid fabric. The food, on the other hand, is the matter to be digested to be con- verted into blood. Looking then at the food as the one end, and at the blood as the other, and noting the marked difference between the two, it may be anticipated that a long chain of means is necessary before the one can become the other. Where the diversity is great between any two things, their assimilation must be proportionately gradual, and their reconcilement gently successive ; and the pas- sage which either of them describes on its way to the other, will probably have many joints, and lead about through strange turnings to an unexpected union. Such is the case with the food itself, and especially with the portions of it that are introduced as chyle into the sangui- neous current. Digestion, therefore, and its organs, pre- sent us with a new element in our studies of organization ; THE LAW OF SERIES. 137 with the element of a series pervading the body ; in this case, a series terminating in the blood, and recommencing from the blood ; and as a consequence of the powers of series or gradualness, with the notion of assimilation, or the liken- ing of one thing to another through a succession of changes occurring in a certain order, and exhibiting a play of har- monious differences and increasing likenesses running with- out a break through the whole. Let us then bear in mind for the present, that successive series, and successive assi- milation, are the meaning of the digestive act, and that these apply to the digestive organs, as well as to the di- gestive objects or the alimentary substances which we consume. Let us also remark in the preliminaries, that if the sub- stances of the external world were not inherently adapted for our sustenance, the possibility of any series of changes harmonizing them with our physical system, would be cut off ; so that in the very fact of digestion we find a co- ordained fitness between man and nature. This we detect in all things the more and the better we look for it. It is a well of truth to draw upon in the sciences, and especially in human physiology. We have said that organizations depend for growth and maintenance upon materials extraneous to themselves, and this is equally true of the vegetable as of the animal king- dom. There is however a difference between the methods of nutrition in the two cases. The plant or tree is fixed by its roots into the soil, and imbibes at their extremities the nutritious juices ; it is imprisoned in a particular spot, and its supplies depend upon the fertility of a very limited area ; although by its leaves it extends into the moveable atmo- sphere, and at the summit of its powers begins to take ad- vantage of the new principle of locomotion. In the animal, on the other hand, motion is the pedestal of life ; the pillars 138 ASSIMILATION AND ITS ORGANS. which support it are engines of movement, and the ground under it is fluid ; its roots also are turned inwards, collected and associated, and constitute repositories or stomachs, into which alimentary substances are carried by proper animal actions. The range and freedom of animal existence im- mensely excel the strait security of the lower nature ; the precarious income of life is far better than the small cer- tainties of vegetation. Thus while the stately tree sub- sists on a few square yards of earth, the animal which it shades, and the bird that lodges in its branches, choose their food from wide districts, and are only confined by the barriers of nature, as the shores of the ocean, or the limits of the climate. Moreover the vegetable, with few excep- tions, draws its sap from the underground, from the dark scurf of the mineral kingdom ; whereas the animal takes its nutrient juices from among the children of air, light, and motion ; from the succulent tops and fruits of nature ; from the results of an elaborate previous digestion in the bosom of the earth, the plant, or even the animal frame itself. Much more are these superiorities true of man physi- cally, or rather of the physical man considered as a mem- ber of society ; for apart from society man is not a man, but the most destitute of animals ; an animal without in- stincts ; with a germ of reason never to be expanded ; with wants never to be known to himself, never to serve as ends of action : his intellect, a sad surmise of a false destiny and lost estate ; his jaws, hands and limbs embruted and maimed in the attempt to awaken his dead mother, nature, and in contesting his mights with his fellow-creatures, the beasts. Man, however, as in this late age we are to ob- serve him, man as the unit of society, is infinitely more locomotive than any animal in its natural condition, and as all men are travellers either by proxy or in person, each as a centre can draw his supplies from all. The human COOKERY. 139 home has one universal season, and one universal climate. The produce of every zone and month is for the board where toil is compensated and industry refreshed. For man alone, the universal animal, can wield the powers of fire, the universal element, whereby seasons, latitudes and altitudes are levelled into one genial temperature; nay, whereby every spot may in time bear its harvest of men, and contribute its proper merchandize to even the poorest brother of the social table. Man alone can command the architecture that will hold the domestic hearth, and on the inevitable model of his own frame, build a house in which he can use, and yet shut out, the universe and its atmo- spheres. And man alone, that is to say, the social man alone, can want, and duly conceive and invent, that which is digestion going forth into nature as a creative art, namely, Cookery, which by recondite processes of division and combination, by cunning varieties of shape, by the insinuation of subtle flavors ; by tincturings with precious spice as with vegetable flames ; by fluids extracted and added again, absorbed, dissolving, and surrounding ; by the discovery and cementing of new amities between different substances, provinces and kingdoms of nature ; by the old truth of wine, and the reasonable order of service ; in short, by the superior unity which it produces in the eatable world ; also by a new birth of feelings, properly termed convivial, which run between food and friendship, and make eating festive ; all through the conjunction of our Promethean with our culinary fire ; raises up new powers and species of food to the human frame ; and indeed per- forms by machinery a part of the work of assimilation ; enriching the sense of taste with a world of profound ob- jects : and making it the refined participator, percipient and stimulus of the most exquisite operations of digestion. Man then, as the universal eater, enters from his own 140 ASSIMILATION AND ITS ORGANS. faculties into the natural viands, and gives them a social form, and thereby a thousand new aromas answering to as many possible tastes in his wonderful constitution ; and therefore his food is as different from that of animals in quality, as it is plainly different in quantity and resource. How wise should not reason become in comparison with instinct, in order to our making a right use of so vast an apparatus of nutrition ! Is it surprizing if the prodigy of human digestion too often sinks into a perverse develop- ment, or if diseases that happen never to simple animals, are engendered in the course of the indefinite appetites of man? A controversy that may one day be of importance, and whose data seem coeval with history, requires a passing mention while we are speaking of human food. It has been held by many individuals, and even by sects, that vegetable substances are our natural and proper aliment, and that our taste for the flesh of animals is an acquired and a morbid appetite, the gratification of which unmans us in our better part, aggravates whatever is low and fierce in our characters, and discourages our highest and gentlest affections, and our calmest reasons. As to what may be natural to man, the argument is suspect. An old writer has pithily remarked, that " many things which would be preternatural in a natural state, are natural enough in the preternatural state in which we live at present." Human nature indeed is always changing by its own act and deed, by its own choice of change ; and no change in which it concurs is to it artificial, but it remains human nature still. The career of mankind is a line and chain of new human natures, and nothing is so natural to us now as artifice itself. For the rest, experienced anatomists and physiologists, reasoning from the teeth, and from the com- parative properties of the intestinal tube, its length, and VEGETARIANISM. 141 so forth, are confident that the human being is omnivorous, and they have the historical and geographical fact, if not the right, upon their side. There seems to be a series of aliments required by the different races from the equator to the pole ; the vegetable predominating at the equator, and running by a lessening scale down the sides of the globe ; the animal commencing, if I may so speak, at the polar end, and likewise running by a lessening scale, modu- lated according to climates, towards its minimum in the torrid zones. Thus we have the highly baked white meats of India passing through long gradations to the raw red flesh and blubber* of the Arctic regions ; and again by a * Although fatty substances seem to be taken in cold climates upon the principle of supplying fuel to the animal fire, yet oils or vegetable fats are consumed in large quantities in warmer countries, and espe- cially in the summer season. The diet in Italy, for example, is largely mixed with oil. The frigid zones provide animal fats in abundance, the torrid yield vegetable fats, rich oily nuts, &c. ; and undoubtedly the staple of the soil is a kind of measure of the diet of the inhabi- tants. In cold latitudes fat makes heat, and keeps out cold, for a well-lined skin is an important ingredient of warmth, and is the basis of warm clothing. But in hot parts oily aliment is taken upon a dif- ferent principle. It is demanded in the latter case as a corrective to the watery, pungent, acid and cold things which are so refreshing to the frame. On this principle it is used with salads, cucumbers, &c., &c. It acts mechanically or sensationally, communicating its own smoothness to the otherwise irritated stomach and intestines ; or giving a soothing organic feeling to the parts, which is communicated to the nervous centres. All foods have this contagion in addition to their other effects ; they propagate their own feel to the body. The plea- sures of taste depend partly on this feel, as well as upon proper gus- tation ; thus the crunch of nuts and the smoothness of cream are agree- able apart from the taste. We cannot but think that this demulcent use of oil is important in a medical point of view, in spasmodic actions of the intestines. It is said to have been remarkably successful in Spain in the treatment of cholera, which involves intestinal insurrec- tion of the greatest intensity. 142 ASSIMILATION AND ITS ORGANS. curious inversion, the highly flavored vegetable dishes of India decline in the same manner towards the insipid vege- table cookery of the north. In the tropics, taste is the great allurement, and cookery there, as in China and Hin- dostan, is in its most varied perfection ; in the frigid zones hunger is the predominating sense, and readiness and quan- tity satisfy it best. As measured by the sense of taste, the hot countries are the tongue of the world, delicate, liguriating, fastidious, in which hunger is near to thirst ; the other regions are the successive portions of the alimen- tary canal, ravenous and void at last ; little appreciating quality, but loving impletion. The tropical man lives upon the sun, which gives him its warmth, and he requires to be strongly attracted to material food ; while at the extremities of the planet food is the gross fuel of life, which is constantly consumed in large quantity, and must be constantly supplied. What is true of the world at large holds equally of its countries, which partake of the roundness of time in the whirl of the fluent seasons. Summer is our torrid zone, and winter, our frigid ; and we feed as Esquimaux in our nocturnal solstice, and are as abstemious Hindoos in our melting dog-days. The planetary dinner-table has its various latitudes and longitudes, and plant and animal and mineral and wine are grown around it and set upon it, ac- cording to the map of taste in the spherical appetite of our race. There is the great ecliptic of thirst, with its lesser circles, the path and parallels of the burning sun ; and there are the poles of hunger, also with circles, terminating in the equator of languid appetite and easy satiety. For hunger is the child of cold and night, and comes upwards from the all- swallowing ground ; but thirst descends from above, and is born of the solar rays. The fluid and the solid are of inverse genealogies, and different centres, and THE PLANETARY DINNER-TABLE. 143 their primordial wants are as much opposed as their sources. Thirst lives in the throat, at the summit of the alimentary tube ; substantial hunger low down ; and the two run up- wards and downwards, intermingling their desires, are happily blended in the stomach, and each is lost in each at the extremes. And so the man is solid, or fluid, which you please; the blood, so liquid in its vessels, becomes bone in the bones, and flesh in the muscles ; the human form looked at from within, is an ever-changing fountain ; seen from without it is one steady crystal, congealed and unmoving, though rolling swiftly still along the line of years. Let it however be observed, that hunger and thirst are strong terms, and the things themselves are too feverish provocations for civilized man. They are incompatible with the sense of taste in its epicureanism, and their grati- fication is of a very bodily order. The savage man, like a boa constrictor, would swallow his animals whole, if his gullet would let him. This is to cheat the taste with un- manageable objects, as though we should give an estate to a child. On the other hand civilization, house-building, warm apartments and kitchen fires, well-stored larders, and especially exemption from rude toil, abolish these ex- treme caricatures ; and keeping appetite down to a mid- dling level by the rote of meals, and thus taking away the incentives to ravenous haste, they allow the mind to tutor and variegate the tongue, and to substitute the harmonies and melodies of deliberate gustation for such unseemly bolting. Under this direction, hunger becomes polite ; a long-drawn, many-colored taste 5 the tongue, like a skilful instrument, holds its notes : and thirst, redeemed from drowning, rises from the throat to the tongue and lips, and full of discrimination becomes the gladdening love of all delicious flavors. At the same time there is this benefit 144 ASSIMILATION AND ITS ORGANS. also, that we can always descend to the lower condition, and find an agreeable variety in the plainest fare. But to recur for a moment to the vegetarians (not to do them an injustice), although we accept the testimony of the anatomists and physiologists, and the dictation of facts, as of value for the present, yet it must be admitted that it is not conclusive for the future ; for in a being mutable like man, capable of improvement and of deterioration, with power to alter his mind, and therefore his brains and his body, it is difficult to say to what extent his anatomy may have conformed to his habits, good or evil. No doubt our frames have changed with the times since the world began. Existing customs and organisms are not fixed points to limit the truth, or to govern the future. A new appetite for flesh, conceived in the mind, and daily grati- fied, and of consequence daily strengthened, could not fail in the course of generations to mould the consumer to the desired end ; and in short to make animal food natural to the human constitution, by modifying the latter- That it may fairly be called natural now, is evident, for where is the race that abstains from flesh unless either religion, or strict necessity, forbids it use? The question therefore, like other administrative questions, is one of times, and wants, and wise expediency. If by other sorts of tempe- rance the members of society find their thoughts calmed and deepened, their senses refined, their emotions more constant, powerful and peaceful, it is hard to say to what new sublimities temperance may not aspire; what fresh interpretations it may not assume, or how it may not as- sault the carnivorous man. Every herb and every fruit may presently be for our meat, as in the days of our first parents. In the meantime, however, man is strictly and potently omnivorous in the nineteenth century ; and we may well question whether the vegetable kingdom is at MILK, THE INFANT OF ALL FOOD. 145 present sufficiently comprehended to supply the varied qualities of food which are necessary for our support; for how few of the said herbs and fruits continue to be eatable. We cannot banquet like the first men, until we get back the golden earth. As it is, the encroachment of drugs and poisons has driven our esculents into a penfold, and we are fortunate if from the exceptions to the kingdoms we can furnish our table. Assuredly the woods, fields, and gardens must be more humane, which no doubt they are willing to re-become ; the stomach also must put forth the hands of a more inventive agriculture, before the vegeta- rian crusaders can be allowed to wave their leafy flag over the city of the cooks. But by dabbling too much, or pre- maturely, in their limping pultaceous diet, we should be- come not the children, but the abortions of Paradise. It has been suggested by Dr. Prout, that the milk which is our first aliment, an aliment certainly human, if not animal, and which is the food prepared by nature herself, is the type of all food whatever : that it contains certain alimentitious principles in combination, which are but re- peated, and their combination re- attempted, in the most elaborate cuisine. His analysis of the components of the milk, is, into oily, saccharine, and albuminous matter ; and after investigating our food and its combinations, he finds that his view regarding milk is borne out by the instinc- tive tastes and artificial cookery of mankind. According to this, all our meals are but aspirations to our original milk. There may however be different analyses of milk besides the partly chemical one he has mentioned, and it remains to be seen whether other views will equally com- port with this reference of food to the lacteal type. We can scarcely doubt that the idea has a truth ; it wears so organic an aspect, and takes its stand with such powerful innocence at the head of a science of alimentation. More- 14 ASSIMILATION AND ITS ORGANS. over nature, the mighty mother, offers herself breast- wise to all her little natures ; she swells in landscape and undulating hill with mammary tenderness ; each creation is a dug held forth to a younger creature ; and milk is thus again a symbol of the food and feeding which are everywhere. But let us pass onwards from the food which is the matter, to the fluids which are the medium, and to the organs which are the instruments, of digestion. Now there is nothing more general in animal life than the digestive apparatus, because matter is the largest, if not the greatest, fact in the material universe. Eveiy creature which is here, must be made of something, and maintained by some- thing, or must be landlord of itself. Every part, and every faculty, of every being inhabiting the planet, must be duly clothed and ballasted with stuff derived from the earth, or it would have no operation in the body, or upon the body, much less upon the external world. Hence the stomach is an organ of the first importance to all mortals. You may take away brain and nervous system, and leave their place to be supplied by the fluxions and imponderables of nature ; you may take away the lungs, and consign their office to the circumambient lifeless atmospheres ; you may abstract the heart with its blood-vessels, and commit the dull, gluey circulation to the almost mechanical and chemical laws of affinity that obtain in vegetables : and notwithstanding all this, you may still have an animal being remaining. In short, there are animals which are nothing but stomachs, but there are no animals which are nothing but brains. In the human race also the stomach is of the same paramount importance ; its existence, and due impletion, are the first or last conditions of the existence of the individual ; they are the basis of humanity, and nothing is so sublime but it rests upon them, and must perish out of this world if the} r IMPORTANCE OF THE STOMACH. 147 cease, and otherwise follow their vicissitudes. The assured feeding of the nations, is a question that involves in its settlement all other questions, and postpones sublimities until necessities are complied with. Jewelled goblets there are besides, but this earthern cup must be satisfied before the other vessels of the man can begin to be filled. The food, consisting of matters from the animal, vegeta- ble, and mineral kingdoms, is at first received by the lips, which present to it a more and more delicately sensitive surface from their beginning at the external skin towards the roots of the teeth ; and especially where the sight is not employed, it is apprehended by a sense of touch so gradually fine, as if touch itself were passing into taste, as the food is passing to the tongue. It is next transmitted to the teeth arranged in manifest row and series. What is received by the front or incisor teeth, is delicately treated, or minced, and the fine things set free go at once to the tip of the tongue, which is waiting close behind to receive them. At the sides of the mouth the molar teeth stand ready to grind their portion, and their milling surfaces be- come more and more severe and powerful from before to behind ; they also are a distinct series of structures, and involve a series of operations ; for every new tool has a new action. Intermediate between the mincing and grind- ing teeth are the canine, so large in carnivorous animals, which both thrust and cut the food, and submit it to the molar action. It is good to believe, that the juices sepa- rated by the different teeth go primarily to the part of the tongue alongside those teeth, and are especially to the taste of that part ; for the neigborliness of the body is not useless but functional. All this time the food has not been merely reduced, and its juices set free, but animalized also ; and this, from the very porches of the mouth. Even before the first nutrient H 2 148 ASSIMILATION AND ITS ORGANS. fluids are expressed from it, a living fluid, the saliva, has come out of the body to receive them. There is a series of salivary glands running from the lips throughout the tube. The sight of the food, the action of mastication, the pleasantness of the morsels, and the suctorial power of the tongue, draw out the saliva from the respective glands in the mouth, as it is wanted to moisten the organs, and to penetrate and dissolve the food. Especially do the emo- tions call out the attentive saliva, and the mouth waters with appetency. Sight and fancy wherewith it is full, and which it obeys in the first place, have fed it with anticipa- tory fire, and schooled it for its duties. Moreover the saliva is no menial, but the immediate product of the blood proceeding to the head and the organs of the senses, and if not summoned into the mouth, goes its course towards the brain ; and being thus descended from the blood, and akin to the blood, it is clearly an excellent medium between the blood and the new food, whose finest portions, under its guidance, are themselves to be educated into blood. The expressed food is the new guest which is to be inaugurated into the duties of the household ; the blood is the royal table itself; the saliva is the commissioned master of the ordinances, who busies himself to instruct the food in the laws of the place, and in the conditions of its hospitality. The saliva, like everything else in^this system, exhibits a play of varieties. In the mouth this is manifest to all. Do we not feel that in the front of the mouth the saliva is thin and trickling ; in the back part, as it approaches the throat, more ajid more viscid and tenacious ? How this difference in thickening is produced, we need not now enquire, but ma)^ simply note the fact of an orderly series existing even in this small compass. The food already upon the tongue, carved by the front teeth, pierced by the middle teeth, and ground by the back THE TONGUE FEEDS. 149 teeth ; also saturated by the saliva ; affords the sense of taste to the sensorial papillae of the tongue, which tongue- like themselves, protrude and exert themselves to enjoy it; and this nimble member seeks and suffers the pleasures of the time with infinite agitation and emotion. What is the sense of taste f Is it merely that abstract thing, an influ- ence, made of nothing but metaphysical motions? Do tasty substances knock at the door of the organ, and leave their names, without going in themselves? It may be difficult to demonstrate by anatomy the absorption of juices by the tongue, yet facts shew that such absorption takes place. The sudden recruiting of bodily and nervous power by matters taken into the system ; the effect produced by wine and other fluids when only held in the mouth ; the fact that the tongue is the beginning of the great absorbent organs, and must therefore in consistency begin the ab- sorption ; also the variously-formed prominences or papillae upon the tongue, which are poorly accounted for by phy- siologists, because they overlook the right of the tongue to taste in that real sense which tasting implies ; moreover the certainty that there are in creation no abstract influ- ences or impressions unaccompanied by streams of tangible stuff : all these reasons establish, that the tongue enjoys an antepast of the food ; drafts its best essences, recruit after recruit, into the system, in union with the finest saliva ; and only sends down into the stomach the portions which are exhausted for the mouth. But current science tells us, that there is no tasting in the tongue, and no feeding in the stomach, but that the man is nourished entirely from the lower belly from the intestinal tube. A physiology that confesses to living so grossly, can have little enjoyment of refined truths, small sympathy with the good things of the world. It is the very servility of the senses, to make the man dine in 150 ASSIMILATION AND ITS ORGANS. his own kitchen ; to bring the repast laboriously down from the drawing-room of the mouth and the saloon of the sto- mach, to the place of sanded floors and wooden trenchers. It is indeed a matter of taste. For the reasons stated, we cling to the upper story, and the other opinion. As soon as the exhaustive feast of the tongue is ended, the food is prepared for its next destination, and an act of swallowing takes place ; the tongue rolls the morsel back into the pharynx, a chamber intermediate between the mouth and the gullet ; the pharynx, successively contract- ing, moves it down into the latter ; and this, taking up the contraction, forwards the ball from point to point, until it reaches the upper or cardiac orifice of the stomach. The viscid saliva of the back of the mouth, and moreover all the fluids supplied, or drank, either sheathe the food, or lubricate the passage, and make the transmission easy, and almost spontaneous. Arrived at the entrance to the stomach, which is shut by a circular muscle, the food opens the latter, and passes into the great cavity of the organ. The passage from the mouth to the stomach is accomplished with rapidity, yet perchance there is a graduated absorp- tion which takes place more swiftly still, and leaves not even an apparent break in the absorbent function following the absorbent structure. At the back of the mouth, under ordinary circumstances, the food becomes lost to our consciousness ; but as in the tongue we have found manifest taste with invisible feeding or absorption, so here the matter is reversed, and we have henceforth to contemplate manifest absorption with a latent sense of taste. Generalizing the functions of the elongated parts we are enumerating, we may consider that the func- tion of taste or quality reigns throughout it, equally with the function of eating or quantity ; that to the alimentary organs, from beginning to end, there can be no substance THE BANQUET OF THE STOMACH. 151 without taste; and on the other hand, no taste without substance. In the stomach, judging by what there is done, what a scene we are about to enter ! What a palatial kitchen, and more than monasterial refectory ! The sipping of aromatic nectar, the brief and elegant repast of that Apicius, the tongue, are supplanted at this lower board by eating and drinking in downright earnest. What a profusion of covers is made and laid! What a variety of solvents, sauces, and condiments, both springing up at call from the blood, and raining down from the mouth, into the natural patines of the meats ! What a quenching of desires what an end and goal of the world, is here ! No wonder ; for the sto- mach sits for four or five assiduous hours at the same meal that the dainty tongue will despatch in a twentieth portion of the time. For the stomach is bound to supply the ex- tended body, while the tongue wafts only faery gifts to the close and spiritual brain. The stomach, anatomically speaking, is a vaulted cham- ber consisting of three walls or coats common to the whole tube. Its inner wall is made up of little compartments placed side by side, and which open into its cavity, and differ in construction in different parts. These are beset by a mesh of the smallest bloodvessels. The inside of the stomach forms a kind of honeycomb surface crowded with little mouths, and when the organ is roused, red and turgid with blood. At this time also numerous little points or papillae waken up upon the membrane, and bring forth a dissolvent liquid termed the gastric juice. These honey- comb structures are the stomachs of the stomach ; the na- tural components of the organ. The muscular coat is the middle wall of the stomach. Its fibres run circularly, spirally, vertically, in all the writhings of stomachic taste. They are the moving arms 152 ASSIMILATION AND IT'S ORGANS. of the stomach, which enable it to lay hold of the food, and to work and agitate it. The principle of the mouth, the jaws, and the fingers, here ensouls a sheet of mem- brane, which extemporizes shapes of every required variety. Thus this seemingly simple organ erects itself into a thou- sand different apartments, in each of which a peculiar digestion, and a peculiar assimilation, is proceeding. This encameration, ensured by motion in the human stomach, is the fixed condition of the part in some animals, as the camel, the ox, & UNIVERSITY OF CALIFORNIA, BERKELEY BERKELEY, CA 94720 YB .. I I. I