Evolution and Dogma

EVIDENCES OF EVOLUTION. 127has shown that the same law holds good with sea-shells, but from the wide distribution of most mol-lusca it is not well displayed by them. Other casescould be added, as the relation between the extinctand living brackish-water shells of the Aralo-Caspian 1sea."It is no explanation of the facts of geographicaldistribution to say that species are specially adaptedto the habitats in which they are found that South ;America, for instance, is especially fitted for edentates, and Australia for marsupials. That not" it isthe suitability of organisms to the areas which theyinhabit that has determined their creation uponthese areas, is," says Romanes, " proved conclusivelyby the effects of the artificial transportation ofspecies by man. For in such cases it frequentlyhappens, that the imported species thrives quite aswell in its new as in its old home, and indeed oftensupplants the native species. As the Maoris say :As the white man s rat has driven away the nativerat, so the European fly has driven away our fly, sothe clover kills our fern, and so will the Maori himself disappear before the white man. a" The Demonstrative Evidence of Evolution. We come now to what Huxley designates specifically "the demonstrative evidence of Evolution,"the evidence based on the lineal succession ofseveral carefully-studied types, and above all, the Thelu Origin of Species," vol. II. p. 121. 3 " Scientific Evidence of Organic Evolution," chap. iv.

128 EVOLUTION AND DOdMA.evidence based on the ancestors of the horse discovered by Marsh and others. So strong, indeed, isthis evidence considered, that it has been said thatif the theory of Evolution had not existed before,"paleontology would have been compelled to inventit, so clearly are the traces of it to be seen in thestudy of Tertiary mammalia discovered since 1859." According to Prof. Huxley, "the primary anddirect evidence in favor of Evolution can be furnished only by paleontology." Again he avers that:The" only perfectly safe foundation for the doctrineof Evolution lies in the historical, or rather archaeological evidence, which is furnished by fossil remains,that particular organisms have arisen by the gradualHemodification of their predecessors." tells, too,that " On the evidence of paleontology, the Evolutionof many existing forms of life from their predecessors is no longer a hypothesis, but a historical fact ;it is only the nature of the physiological factor towhich that Evolution is due which is still open to 1discussion."But what about the pedigree of the horse ? Whatabout those ancestral equine forms about which somuch has been said and written?The ancestors of the horse, as revealed by thediscoveries of Marsh and others, are " or Protohippushipparion, which is found in the Pliocene mioJiip- ;pus and mesoJiippus, found in the Miocene; oroJiippusin the Eocene and eohippus, at the base of the Eo ;cene. In the protohippus each foot has three well-formed digits; miohippus, in addition to this, has a1 " Britannica," vol. VIII, p. 751. Encyclopaedia

E VIDENCES OF E VOL UTION. 129rudimentary metacarpal bone of a fourth digit inthe fore-foot in mesohippus this rudimentary meta ;carpal bone is more fully developed ; in orohippusthere are four well-developed digits in the fore-foot,three in the hind-foot while in eohippus five digits ;are present. Thus, this series of fossil forms furnishes a complete gradation, from the older Tertiaryforms with four toes, up to the horse with one toe.These forms differ not only as regards the numberof toes, but also in other respects, chiefly in thegradual diminution and loss of independence of theulna and fibula, and in the gradual elongation of theteeth and increasing complexity of the grinding Jsurfaces." Another interesting example frequently cited, oftransitionary forms, is the fossil, planorbis, found inthe bed of an old lake near the small village ofSteinheim, in Wurtemberg. In the successive strataof this lake bottom occur an immense number ofshells of divers forms, and all from a few varietiesof one and the same species. In passing from thelowest to the highest layers a great modification offorms is observed, so much so, indeed, that were itnot for the countless intermediate forms one shouldunhesitatingly say that the extreme forms belong,not only to different species, but even to differentgenera. As it is, however, the gradations are so insensible that the conclusion is almost irresistibleMlu Lectures on the Darwinian Theory," by Dr. A. MartsHhhuaixlsll,reeypm.as r6k7&.qaubotl;FeLoecsrteurreaisens oionnfteaEvrnoeclsuettsiitonnr,ga&lqudoeti;qsuceiunnstseiitoflnoerdmwsiT,thhseeedDitaehgmerotanhmsisrt,draoofftive Evidence of Evolution.

130 EVOLUTION AND DOGMA.that the various species observed are, at least inthis case, originated by derivation with modifica 1tions. The case just adduced is frequently appealed toby evolutionists, not only because it has been exhaustively studied, but also because it tells so strongly infavor of the theory of derivation. An equally striking instance, perhaps, is foundin the case of another group of mollusca belonging to the paludina. At first, the six or eightknown gradational forms of this mollusc were reckoned as entirely distinct species. Subsequently,however, numerous connecting forms were discovered, so that now over two hundred varieties arecounted. But so gradual are the transitions ofone form into another, that shells which otherwise would be considered as belonging to different genera are, by reason of the known connecting links, regarded as constituting but one andthe same a species. Similar gradations have been shown by Cope toexist among certain extinct mammalian forms, notably among the species of the generalized family,oreontitce, but it is unnecessary to give further illustrations of this character, as those just instanced arequite sufficient to exhibit the nature and force ofthe argument which is based on the existence ofsuch gradational forms. 1 Cf. A. Hyatt s "Anniversary Memoir of the Boston Societyof Natural History, 1880, on Genesis of Tertiary Species ofPlanorbis at Steinheim." Romanes Darwina Cf. " after Darwin," vol. I, p. 19.

E VIDENCES OF E VOL UTION. 131 Generalized Types. Confirmatory of the argument founded on the remarkable series of transitional forms we have just beenconsidering, are those curious extinct animals calledby Huxley generalized, and by Dana, comprehensive types ; types which by Agassiz were variouslydesignated as combining, connecting, synthetic andprophetic types, and which embrace those strangecreatures that embodied the characters of two ormore groups at present widely separated from eachother. Among these were certain early vertebrates which possessed both fish-like and reptiliancharacters. At a later geologic epoch there existedother animals, which possessed the characters of reptiles and birds in such a curious combination, that weare yet unable to decide whether they should beAmongcalled reptilian birds or bird-like reptiles.these generalized types there were, in the words ofGrant Allen : Lizards" that were almost crows, marsupials that were almost ostriches, insectivores thatwere almost bats, rodents that were almost monwhenkeys." " on the stroke, they were most Justneeded," declares the same writer, "connecting linksturned up in abundance between fish and amphibians,amphibians and reptiles, reptiles and birds, birds andmammals, and all of these together in a perfect network of curious cross-relationships." Among these generalized forms may be mentioned the archaopteryx, the pterodactyl and theHuxcompsognathus. In" the archceopteryx" says we" have an animal which, to a certain extent,ley,occupies a midway place between a bird and a

E VOL UTION A ND DOGMA .reptile." The pterodactyl was a reptile which wasavi-form and capable of flying. The compsognathus,like the arcliczopteryx, was intermediate in form between a reptile and a bird, but was probably ratheran avian reptile than a reptilian bird.Again we have such fossil vertebrates as Cuvier sanoplotherium, which was intermediate in character between pigs and ruminants the palaotherium ;which connected together such dissimilar animalsas the horse, the tapir, and the rhinoceros. Moreremarkable still are the generalized types known asthe condylarthra, the primitive form of which Copeconsiders the common ancestor of all true mam 1malia. And so we might mention other synthetic typesbrought to light by Gaudry, Riitimeyer, and otherpaleontologists. It was, indeed, M. Gaudry s researches in Attica, where he discovered an extraordinary number of gradational forms among thehigher vertebrates, which convinced him that Evolution is the only theory that is competent to explain the existence of those remarkable connectingtypes which are every day, thanks to the investigations now conducted throughout the world, becoming more numerous and marvelous. "A few strokesof the pick-axe at the foot of Mount Pentelicus,"says the eminent French savant, "have revealed tous the closest connecting links between forms whichbefore seemed very widely separated." How much closer and more remarkable theselinks will become with the progress of research, when1 Cf. " Origin of the Fittest, pp. 343, et seq.

EVIDENCES OF EVOLUTION. 133the as yet vast and unexplored regions of the earthshall have yielded up a portion of their fossil treasures, can easily be divined. Already the generalized fossil types which have been discovered, havecompletely revolutionized all systems of classification which were based on existing specialized forms.For, by tracing the widely separated groups of thepresent back to past geologic time, we find thatthe specialized types of our day gradually convergetowards, and merge into, the generalized types longsince extinct. Species the most diverse graduallyapproach each other, and unite to form "eventuallycommon branches, and these again coalesce in acommon trunk. 1 And this is just what the theory of Evolutiondemands. For, If" the theory of Evolution besaystrue," Huxley/ it follows that however diversethe different groups of plants and of animals maybe, they must all, at one time or other, have beenconnected by gradational forms so that, from the ;highest animals, whatever they may be, down tothe lowest speck of protoplasmic matter in whichlife may be manifested, a series of gradations, leading from one end of the series to the other, eitherexists or has existed." 2lu declares Huxley, in his article on Classification Hence,"in the Encyclopaedia Britannica, " follows that a perfect and itfinal zoological classification cannot be made until we know allthat is important concerning: i, the adult structure; 2, the personal development; 3, the ancestral development of animals.It is hardly necessary to observe that our present knowledge,as regards even the first and second heads, is very imperfectwhile as respects the third it is utterly fragmentary."2 " Lectures on Evolution," Lecture II.

134 EVOLUTION AND DOGMA. Probability of Evolution. Such, then, in brief, is the argument in favor ofEvolution from classification, morphology, embryology, geographical distribution and geological succession. The argument, as based on any one ofthese four classes of facts, is strong, and to many,if not most contemporary naturalists, conclusive.Hut when we consider the joint effect of the argument built on the four classes of facts, and note indetail the perfect harmony, the argument becomesstill stronger and, to all appearances, irrefragable.The evidence furnished by one class of facts corroborates and explains those offered by the others, andthus the cumulative force of the testimony, given byall the four classes, renders the theory, to say theWeleast, in the highest degree probable. may notbe prepared to admit that the theory has the force of ademonstration. If it had, organic Evolution wouldcease to be any longer a matter of scientific inquiryand would at once become a matter of scientific fact. But although Evolution is but a theory, and nota demonstration, a probability and r^ot a certainty,it nevertheless possesses for the working naturalist avalue that can be fully appreciated only by thosewho have labored in the museum and in the labora" Butler tells us, " is the Probability,"Bishoptory.guide of life." It is no less truly the guide of science, and a highly probable theory often contributesas effectually towards the advancement of scienceand the acquisition of truth as would a demonstrated fact.

EVIDENCES OF EVOLUTION. 135 From what precedes it is evinced, that Evolution as a theory, to claim no more for it, is in thehighest degree probable. It is, in fact, the sole natural explanation of the facts discussed ; the sole theorythat is in accordance with what Sir William Hamilton calls the law of parsimony ; a law which wasfully recognized by Fathers and Scholastics whenthey taught that we should not invoke the action ofsupernatural causes, when natural agencies are adequate to account for the facts and phenomena observed. Special Creation and Evolution.Special creation, as an explanation of the multitudinous forms of life with which the earth teems,and has teemed during long aeons past, is but anassumption, and an assumption, too, that has nowarrant outside of the individual opinions of certaincommentators of Scripture; opinions which, by thevery nature of the case, can carry with them nogreater weight than would attach to the views oftheir authors on any other question of natural science. As to Scripture itself, and the teaching of theFathers and Doctors of the Church, we shall see inthe sequel that their testimony is as strongly in favorof derivative creation, Evolution under the Providential guidance of natural causes, as it possibly canbe in favor of the old and now almost universallydiscarded theory of special 1 creations.Enlu declared the Abbe Guillemet before paleontologie,"the International Catholic Scientific Congress at Brussels lastyear, " les inductions evolutionistes expliquent sans peine par ladescendance d ancetres communs ces enchatnements si bien mis

130 EVOL UTION AND DOGMA. As a theory, Evolution certainly reposes on asfirm a foundation as do the atomic theory of matterand undulatory theory of light, or as does Newton stheory of universal gravitation. And as these theories have been of priceless service to the chemist, thephysicist and the astronomer, in the study of theirrespective sciences, so also has Evolution been ofuntold value to the naturalist, in enabling him tocoordinate a vast body of facts, that else were naughtbut a stupendous chaotic mass. It has proved tomanyhim opento be an " of nature s sesame" tosecrets, and like the clue of Ariadne, it has enabledhim to find his way out of the bewildering labyrinthin which every true student of nature must pass atleast a portion of his existence. It is said that u a striking corroboration of a scientific theory is furnished when it enables us correctlyto predict discoveries." Judged by this standardEvolution can compare favorably with the best accredited theories of modern science. It will sufficeto refer to but two cases in point, although it wereeasy to adduce numerous others.Den evidence par des savants spiritualistes et Chretiens, tels que Omalius d Halloy et Albert Gaudry, et dont M. de Nadaillacnous a concede la realite. Le fixisine, au contraire, en estreduit a invoquer une filiation intellectuelle dans la pense*e duCreateur, une sorte d evolutionisme ideal. On comprend celapour un architecte humain, qui ne peut pas tirer une cathedraled une cathedrale sinon par imitation. Mais celui dont 4 lesdons sont sans repentance detruira-t-il sans cesse ce qu il acree pour recreer a nouveau ? Ne preferera-t-il pas conservera ses creatures une vie renouvelee et rajeunie dans une descendance qu il perfectionnera de generation en generation, recom-pensant par I ascension de fils la fidelite des progeniteurs a leurComptelois naturelles.""Rendu," Section d Anthropologie,p. 27.

EVIDENCES OF EVOLUTION. 137In the first edition of his " Origin of " Dar- Specieswin wrote: "We may thus account even for thedistinctness of whole classes from each other forinstance, of birds from all other vertebrated animals,by the belief that many animal forms of life havebeen utterly lost, through which the early progenitors of birds were formerly connected with theearly progenitors of other vertebrate classes." At the time this prophecy was made there wasno positive evidence of the existence of such intercalated forms as Darwin required. Three yearslater the archaoptcryx was discovered, meetingcompletely all the requirements of theory. Subsequent discoveries, notably by Marsh, disclosed othertransitional forms which "bridge over the gap between reptiles and birds, in this sense, that they enable us to picture to ourselves forms from whichboth birds and reptiles as we know them could havesprung." In his lecture on the Evolution of the horse, in1876, Prof. Huxley spoke as follows: "Thus, thanksto these important researches [those of Marsh andother paleontologists], it has become evident thatso far as our present knowledge extends, the historyof the horse type is exactly and precisely that whichcould have been predicted from a knowledge of theprinciples of Evolution. And the knowledge we nowpossess justifies us completely in the anticipationthat, when the still lower Eocene deposits, andthose which belong to the Cretaceous epoch, haveyielded up their remains of ancestral equine animals,we shall find first, a form with four complete toes,

138 EVOLUTION AND DOGMA.and a rudiment of the innermost or first digit infront, with probably a rudiment of the fifth digit inthe hind foot; while in still older forms the series ofthe digits will be more and more complete, until wecome to the five-toed animals, in which, if the doctrine of Evolution is well founded, the whole seriesmust have taken its origin." Only a few months after this declaration, Prof.Marsh unearthed in the Eocene deposits of the Westan equine animal, eohippus, having four completetoes and a rudimentary one in the front foot, thusmaking good the first part of the prophecy. As tothe remaining part, it is, for men of science, only aquestion of time until it, too, sees its fulfillment. But the theory of Evolution enables not only paleontologists, but also morphologists and embryolo-gists, to predict the unseen and unknown. And this,to say no more, is certainly a strong substantiationof its truth. For we can ask no more of a theorythan that it accord with the facts it is designed toexplain. And the more perfectly the theory harmonizes with the facts observed, the more nearly isit demonstrated, so far as any purely inductive conclusion can be demonstrated. The theory of organic Evolution may not, as yet,be susceptible of an experimental demonstrationalthough there are not wanting those who think sucha demonstration is forthcoming, if, indeed, it has notalready been furnished but it unquestionably occupies a high rank among the best accredited theoriesof contemporary science. It seems, even now, to repose on as firm a basis as did the Copernican theory

EVIDENCES OF EVOLUTION. 139in the days of Galileo and Tycho Brahe. For Evolution, like the heliocentric theory, is in perfect harmony with all the manifold facts which it is designedHowto integrate and interpret. long will it bebefore it passes from a theory to a demonstration ?Or, will it ever be demonstrated in such wise as tocommand the assent of all who are capable of weighing evidence, and discriminating between a scientificfallacy and a legitimate scientific induction ? Theseare questions which only the future can answer.Judging, however, by the progress which has beenmade during the past half century towards the solution of many of the problems which have been discussed in this chapter, it does not seem unreasonableto express the belief that it is only a question of time,and probably not a very long time, until the theoryof organic Evolution shall be as firmly established asis now the Copernican one of the solar system.

CHAPTER VIII.OBJECTIONS AGAINST EVOLUTION. Declarations of Anti- Evolutionists. considered some of the argumentsHAVINGwhich are usually adduced in support of Evolution, we may now proceed to examine certain ofthe objections which are urged against it. But as itwould require a large volume for anything approaching a detailed presentation of the reasons advancedfor the acceptance of Evolution, so, likewise, wouldit demand far more space than can here be affordedfor even a cursory discussion of the difficultieswhich anti-evolutionists have raised against a theorywhich, they contend, is discredited both by soundphilosophy and the incontestable facts of science.The De"theory is easy," declared Quatrefages, " butthe application is difficult hence it is that those ;transformists who have attempted this applicationhave invariably found that their hypotheses have ledto conditions which are inadmissible." 1 1 Journal des Sarants, May, 1891. It was in view of the hypothetical character of currentevolutionary teachings, especially of natural selection, thatMgr. d Hulst in referring to them expressed himself in thefollowing forcible and epigrammatic manner: Le besoin de"vivre creant la vie, le besoin d organes creant les organes, lebesoin d ordre creant Fharmonie." Le Correspondant, Dec.25, 1889. (140)

OBJECTIONS AGAINST EVOLUTION. 141 The distinguished French savant, Dr. CharlesRobin, is even more pronounced in his views. Evolution, he asserts, is at best but "a poetical accumulation of probabilities without proofs, of seductiveexplanations without demonstration." As to the defenders of the theory of Evolution,they are accused of drawing universal conclusionsfrom particular premises ; of mistaking resemblancefor blood relationship; of confounding variabilitywith transmutability, and of falsely proclaiming theexistence of a genealogical succession where there isnothing more than a hierarchy of organic forms.Anti-evolutionists may not, indeed, deny the possibility of the derivation of higher from lower formsof life ; they impugn the reality of such derivation.They love to descant on the dictum of the Scholastics, a possibili ad actum non valet consecutio possibility is far from implying existence. They chargetheir opponents with making species of what areonly races, and confidently challenge them to indicate a single instance in which one species has beenchanged into another species, either in historic or in Species, they insist on it, are Divine 1geologic time.AgIidKsuntuvirfenesosseihlteliAcdogenwafrnistteaemawtuiieunrnryseaetl:aptihrasrerstavnpeaasJrnngfeaadoofii,ratamcsiaemonatuetivo1mofe8nban8hie8tir,csrehdMeieolnc.zfatleaqtrErduheemeeesilmtalqoiFuuennrtegseostBwnurlorca^arhtpnkdirc,eIo^hnnsasmertoiLndKit,tauiatqeaneVunjt,deidswfeissriditoqdiuutun*neefgpohefrarnosoatucneaplriceamccmodeeespuritrteerlysdeeugolhnrttiearsptiaacoarnhmtia1pyml,haAlelceb,naudgdtjeeee;smmo1ilaaeceulctdytheeeauisnlnralSit&qecuost;hniegeaenSisconaemtsedafraidresp,espotoiussntriootstfaiefoeiftnnmirurpttmo,hheuen.r,c, sppioornuiet savant contends, the ofa yeTthe eminent a single serious and theory not supported by logical argturmaennstf.ormAenrd,is

142 EVOLU TION A ND DOdAIA .and immutable. With Linnaeus, they declare speciesand genera to be the work of 1 and contend nature,that the ingenuity of man is incompetent to produceanything beyond races and varieties.The spider, they will have it, still spins its webas it did in the time of Aristotle, and the ant collects its store of provisions in precisely the samemanner as was its wont in the days of Solomon.For the sake of brevity, I shall limit myself tothe consideration of three of the chief objectionsurged by anti-evolutionists against the theory ofderivation. The first refers to the alleged absence of all evidence regarding the transmutation ofhence, he continues, Plus quo jamais je renouvelle rnon appel,je declare ma bonne volonte\ assurant que je ne souffrirais enaucune faijon de me trouver vaincu. Ayant pour me consolerla perspective d un progres scientifique dont 1 importance seraitimmense, c est de toutes les forces de mon ame que je jette cetteparole a tous les amis des sciences naturelles: Montrcz-nousdune fois Vexemple de la transformation une 1 especc.ltl Naturae opus semper est species et genus; cultunv s;upiusvarietas; artis et natune classis et ordo." Elsewhere he writesandClasses" orders are the inventions of science, species thework of nature Classis et ordo est sapientia?, species natunc In his " 59, he declares thatPhilosophiaopus." Botanica,"genera, like species, are primordial creations. omneGenus" estnaturale, in primordio tale creatum." In contradistinction, however, to the above dogmatic statements, Linnanis, as we have already learned, was not aversefrom the idea that certain closely allied species had a commonorigin and were the products of extended variation or hybridization. Such species he called the" daughters of time " tem-poris filire. He seemed also to have a presentiment that theday would come when botanists would regard all the species ofthe same genera as descended from a common parent Tot"species dici congeneres quot eadem matre sint progenita?," hewrites in vol. VI, p. 12, of the "Amcenitates Academics." Nay,more, in this same work, vol. I, p. 70, he suggests that not onlyspecies but even genera, may have arisen from hybrids. Novas"species immo et genera, ex copula diversarum specierum inregno vegetabili oriri."

OBJECTIONS A GAINST E VOL UTION. 143species in times past, whether historic or geologic ;the second to the imperfection of the geological record; while the third is based on the infecundityamong individuals of different species. All threeobjections are obvious and popular ones, and theyare, it must be admitted, not without their difficulties. Men of science, however, are satisfied thatthey have met these difficulties, and flatter themselves that they have long since given adequate, ifnot complete, answers to the three objections mentioned. But the objectors themselves, are not sominded. They still persist in asserting that theirdifficulties remain unexplained, and that their objections have lost little, if any, of their originalcogency. Historical and Archaeological Objections. The first objection, then, is based on certain well-known facts of history, prehistoric archaeology, andpaleontology. As to history and archaeology we are informed,that all their indications positively negative the contention of evolutionists that there is not the slightest evidence, from the earliest dawn of civilizationuntil the present time, that there has ever been a sin the transmutation of any one species,gle instance of or animal, into another species. Onwhether plantthe contrary, it is averred, all the well-attested factsof history bearing on the subject, make unmistakably for the absolute stability and immutability ofspecies in both the great kingdoms of nature, animaland vegetable.

144 EVOLUT1 ON A ND DOGMA . Regarding animals, the testimony elicited is asinteresting as it is apparently conclusive. Thus, acollection of shells has been unearthed in the houseof a painter in Pompeii, and all of them, even in theirminutest details, are identical with shells of the samespecies now existing. As Pompeii was buried inashes A. D. 79, we have, therefore, certain proof thatthe shells of the species in question have undergoneno change during the last eighteen hundred years.The anatomical descriptions given by Galen of themonkeys which he dissected in Alexandria, in thesecond century of our era, enabled Camper not onlyto recognize the species to which they belonged, butto affirm that the species had, during the long period elapsed, remained perfectly immutable. Aristotle,who lived in the fourth century B. C., has left us accounts of many marine and terrestrial animals, and so accurate is he in his statements that naturalists are able to assert positively, that the species described have undergone no change during the long centuries which have intervened between the days of the Stag- irite and our own. But the monuments of the Nile valley permit us to extend our observations far beyond the times of Galen and Aristotle. In the numerous paintings, sculptures and bas-reliefs of this marvelous land, we have to hand an astonishing mass of evidence and apparently of such a character as to satisfy the ob jections of even the most critical and skeptical. Egyptian Mummies. The attention of the scientific world was first directed to the value of these monuments in the

OBJE C TIONS A GA INS T E VOL U 7V ON. 145beginning of the present century. During theFrench occupation of Egypt, from 1797 to 1801, themen of science who accompanied the army made alarge collection of the embalmed bodies of consecrated animals and sent them home to swell thetreasures of the museums of Paris. Some idea of theenthusiasm excited by the reception of these preciousremains of an age long past, may be formed fromthe following passage of an official report regarding them drawn up by Cuvier, Lamarck and Lace-pede, professors in the Museum of Natural History.theyIt" write, "as if the superstition of seems,"the ancient Egyptians had been inspired by naturewith a view of transmitting to after ages a monument of her history. That extraordinary and eccentric people, by embalming with so much care bruteswhich were the objects of their stupid adoration,have left us, in their sacred grottoes, cabinets ofzoology almost complete. The climate has conspired with the art of embalming to preserve thebodies from corruption, and we can now assureourselves by our own eyes what was the state of agreat number of species three thousand years ago.We can scarcely restrain the transports of our imagination on beholding thus preserved, with theirminutest bones, with the smallest portions of theirskin, and in every particular most perfectly distinguishable, many an animal, which at Thebes orMemphis, two thousand or three thousand years andpriests 1ownago, had its altars."Museumdu1 "Annales Tom.d Histoire Naturelle," I, p. 234.

14(5 E VOL UT1ON A \D DOGMA .Among the mummies thus collected were thoseMyof wild as well as those of domestic animals. "learned colleague, M. Geoffrey Saint-Hilaire," writesCuvier in his great work, " Discours sur les Revolutions de la Surface du has1 collected in " Globe,"the temples of upper and of lower Egypt all themummies of animals he was able to procure. Hehas brought back ibises, birds of prey, dogs, monkeys, crocodiles, the head of a bull, all embalmed ;and one does not discern any greater differencebetween them and those we now see, than is observed between human mummies and the skeletonsmenof of the present day." Interesting, however, as are the mummifiedremains of wild animals, those of domestic animalshave a greater value in all discussions bearing onthe question of transmutation of species. Amongthe animals frequently embalmed were the dog, thecat and the bull. But since the times when theseanimals were worshipped on the banks of the Nile,representatives of their species have been transported by man to almost every portion of the Oldand New Worlds, and have been exposed to every extreme of climate and to the most diverse conditionsof life. And yet, notwithstanding all these greatchanges of environment, the cat and the dog haveundergone little or no mutations, and the bull Apiswhich was such a special object of worship amongthe Egyptians, was in no wise different from representatives of the same species now living.1 P. 132, edition of 1830.

OBJECTIONS A GA INS T E VOL UTION. 147 Testimony of the Monuments.The testimony afforded by mummies is corroborated by that of the monuments; by the paintings,sculptures and bas-reliefs which adorned the templesand tombs of the Pharaohs. Thanks to the researches of Nott, Broca and others, we are now ableto assert positively that the greyhound and theterrier of the days of Rameses II., and even of anearlier date, were the same in form and appearanceas they are at present, and that, consequently, theyhave suffered no perceptible change during the lastfour thousand or more 1 years.And what holds good for the dog holds good alsofor other animals which are represented on themonuments of the Nile valley. " I have," saysCuvier, " examined with care the figures of animalsand of birds engraved on the numerous obelisksbrought from Egypt to ancient Rome, In theirensemble, which alone was the object of special attention on the part of the artists, these figures bear aperfect resemblance to species now in existence.Anyone may examine the copies of them given byKircher and Zoega. Without preserving the defini- 1 There is in Egypt an indigenous type of dog, the panas,formerly in a which can domestic, now in a semi-wild state,claim a much greater antiquity than the greyhound or the of this dog thatterrier. It is the image constitutes the sole andicotpbaAnieaafrnovlsreniasdtrsereehy,vixdeyea,aeu,ebtcfsvli,ttereehlbsxendytaisescidpwstkgyatphenrhnidoaieatvftaseioestnrmrtyaohaolt,aeslfhndytaeottiwmhowdaneee-oantdsrtecrvateriediyivec,wacnii&qlunthots; ss.isdottoicoahfthgtfeuT,aemdr&hqduoeto;aaiasisracsynsecsteoaahdolrotrrolbdtlhogsihya,uEeningrgaegvhsrytsatohipttogxwethilrheoByteisnrphtchfuoiihiicgsurmcassseattncarlhohnerefdiaduyinlsMwssyeoocrceehn.erauanriilvanptde,o

ANDEVOLUTION14H DO<;MA.tion of the original engravings, they neverthelessoffer figures which are readily recognizable. Amongthem one may distinguish the ibis, the vulture, thescreech-owl, the falcon, the Egyptian goose, the lapwing, the rail, the asp, the horned viper, the long-eared Egyptian hare and the 1 hippopotamus.The monuments of Chaldea and Babylonia tellthe same story as those of Egypt. On a magnificent bas-relief found among the ruins of Babylon,dating, it is said, from the time of Nabuchodonosor,is depicted the figure of a noble mastiff, which inform, proportions and physiognomy is so like untothat of the finest type of a modern mastiff, that onewould say the engraving was made from a photographof one of our prize exhibition dogs. Similarly, Layardgives us, in Ninevehhis " and Babylon," a drawing ofa type of dog of which the characteristics are somarked that naturalists have had no difficulty inidentifying it with a race still occurring in Thibet. Evidence From Plants. What has been said of animals may also beiterated, and with equal truth, of plants both wildand cultivated. There is no certain evidence thateven one of them has undergone any specific changesince the earliest dawn of history. More than this,as far back even as paleobotany will serve as aguide, we are unable to point to a single well-attested instance of transmutation in a single speciesof plant. 1 Op. cit.

OBJE C TIONS A GA INS T E VOL UTION. 149Thus, the woods used in mediaeval buildings, aswell as those found in the buried ruins of Britishand Roman villages, differ in no appreciable featurefrom existing woods. Again, chestnuts, almonds andother fruits found in the shop of a fruit-dealer inHerculaneum, under the lava deposits made eighteen centuries ago, are identical with those stillgrown in the vicinity of Vesuvius.But it is Egypt which supplies us with the bestpreserved vegetable, as it has furnished the best animal specimens of an ancient date. Recent explorations, particularly in the Nileland, have put us inpossession of materials which are far better for purposes of comparison than anything which had beenAndpreviously known. " happily," says Mr. Car-ruthers, " the examination of these materials has beenmade by a botanist who is thoroughly acquaintedwith the existing flora of Egypt, for Dr. Schwein-furth has been a quarter of a century exploring theplants of the Nile valley. The plant remains wereincluded within the mummy-wrappings, and beingthus hermetically sealed, have been preserved withscarcely any change. By placing the plants in warmwater, Dr. Schweinfurth has succeeded in preparing aseries of specimens, gathered four thousand years ago,which are as satisfactory for the purposes of science asany collected at the present day. These specimens,consequently, supply means for the closest examination and comparison with their living representatives.The colors of the flowers are still present, even themost evanescent, such as the violet of the larkspurand the knapweed, and the scarlet of the poppy ; the

150 E VOL UTION AND DOdMA .chlorophyll remains in the leaves, and the sugar inthe pulp of the raisins. Dr. Schweinfurth has determined no less than fifty-nine species, some of whichare represented by the fruits employed as offeringsto the dead, others by flowers and leaves made intogarlands, and the remainder by branches on whichthe body was placed and which were inclosed withinthe wrappings." Among the fruits used as votive offerings, dates,figs and palm fruits are common, and are identicalwith those which are still seen in the markets ofEgypt. Branches of the sycamore, one of the sacredtrees of Egypt, which had been used for the bier ofa mummy belonging to the twelfth dynasty, a thousand years B.C., "were moistened and laid out byDr. Schweinfurth, equaling," he says, " the best specimens of this plant in our herbaria, and consequentlypermitting the most exact comparison with livingsycamores, from which they differ in no respect." Very large quantities of linseed, found in tombsthree thousand and four thousand years old, differin nowise from the linseed still cultivated in theNile valley. And from the seeds examined it hasalso been evinced, that the weeds which infest thecultivated fields of today were not absent from the 1 See opening address before the Biological Section of theBritish Association for the Advancement of Science, as reportedin Nature, Sept. 9, 1886. Mr. Carruthers is recognized as oneof the most eminent of contemporary English botanists, andhence, his words in the matter under discussion have specialweight. I have myself examined Dr. Schweinfurth s wonderful collections in Cairo, and can testify that Mr. Carruthers account ofthem is in no way exaggerated.

OBJE C TIONS A GA INS T E VOL UTION. 151gardens and plantations of the Pharaohs. The spinymedick and the charlock, for instance, were as muchof a pest to the growers of barley and flax duringthe age of the pyramid-builders, as they are to thefellahin of the last quarter of the nineteenth century.Mr.continuesIt" Carruthers, " with is difficult,"out the actual inspection of the specimens of plantsemployed as garlands, which have been prepared byDr. Schweinfurth, to realize the wonderful conditionof preservation in which they are. The color of thepetals of papaver rheas, and the occasional presenceof the dark patch at their bases, present the samepeculiarities as are still to be found in this speciesgrowing in Egyptian fields. The petals of the larkspur not only retain their reddish violet color, butpresent the peculiar markings which are still foundAin the living plant. garland composed of wildcelery and small flowers of the blue lotus, fastenedtogether by fibers of papyrus, was found on amummy of the twelfth dynasty, about three thousand years old. The leaves, flowers and fruits of thewild celery have been examined with the greatestcare by Dr. Schweinfurth, who has demonstrated inthe clearest manner their absolute identity with theindigenous form of this species now abundant inmost places in Egypt. The same may be said ofthe other plants used as garlands, including twospecies of lichens." Nor is this all. The evidence afforded by archaeology and paleobotany is as direct and as unequivocalas that of history. The cereals cultivated in prehistoric times, during the Roman occupation of Britain,

152 EVOLUTION AND DOGMA.during the times of the mound-builders in theMississippi valley, and during the reign of the Incasin Peru, were specifically the same and of as goodquality as those harvested by the scientific farmerof to-day. And yet more. We may even go so far back asthe Glacial and pre-Glacial periods periods so remote that, according to the calculations of Lyell,Ramsay and others, they antedate our own era byfully two hundred and fifty thousand years and wefail to find from an examination of the vegetable remains of the time, that there has been any transition from one species to another. Scores of treesand plants are known to have existed during pre-Glacial times, which were in every respect, even inthe venation of the leaf, identical with their livingrepresentatives of the present day. And yet, it isurged by anti-transmutationists, this is not what oneshould expect if the teachings of Evolution be true.For as Mr. Carruthers pertinently observes : The"various physical conditions which necessarily affected these species, in their diffusion over suchlarge areas of the earth s surface, in the course of,say, two hundred and fifty thousand years, shouldhave led to the production of many varieties, butthe uniform testimony of the remains of this considerable pre-Glacial flora, as far as the materialsadmit of a comparison, is that no appreciable changehas taken place." Views of Agassiz, Barrande and Others. One of the favorite arguments of ProfessorLouis Agassiz against the transmutation of species,

OBJECTIONS A GAINS T E VOL UTION. 153was, as is well known, based on the observed perma-nence of divers species of the marine forms whichcontributed towards the production of the coral reefsof Florida. In his charming work, "Methods of Studyin Natural l the illustrious Swiss savant History,"declares uponthat " the lowest calculation, basedupon the facts thus far ascertained as to their growth,we cannot suppose that less than seventy thousandyears have elapsed since the coral reefs alreadyknown to exist in Florida began to grow." Andas there is reason to believe that the entire peninsula of Florida is formed of" successive concentricwereefs, samethemust," authority asserts, " believethat hundreds of thousands of years have elapsedsince its formation began." Continuing, he writes : So" much for the duration of the reefs themselves. What, now, do theytell us, of the permanence of the species of whichthey were formed ? In these seventy thousandyears has there been any change in the corals livingin the Gulf of Mexico? I answer, most emphatically, No. Astrsans, porites, maeandrinas, andmadrepores were represented by exactly the samespecies seventy thousand years ago as they arenow. Were we to classify the Florida corals fromthe reefs of the interior, the result would correspond exactly to a classification founded upon theliving corals of the outer reefs to-day. Every species, in short, that lives upon the present reef isfound in the more ancient one. They all belong toour own geological period, and we cannot, upon the 1 Chap. xn.

154 EVOL UTION AND DO(;MA.evidence before us, estimate its duration at less thanseventy thousand years, during which time we haveno evidence of any change in species, but, on thecontrary, the strongest proof of the absolute permanence of those species whose past history we havebeen able to trace."But strong as is the evidence just adduced, againstthe mutability of species, that based on the investigation of the eminent French paleontologist, JoachimBarrande, is, so we are told, even more conclusive,and that for the reason that it extends over a vastlylonger period of time. Barrande was undoubtedlyone of the most careful and most successful inquirersinto the life-history of certain periods of the remote,geologic past, whom the world has yet known. InBohemia he had an exceptionally favorable area forthe study of the fossiliferous strata of the SilurianAge, and his masterly work, " Silurien de Systemela Boheme," the most complete production of thekind in existence, will ever remain a noble monument to his untiring industry and his incomparablegenius for research in the domain of the earlier formsof terrestrial life.The conclusion which this eminent man of sciencearrives at, after long years of patient investigation,and after the most careful examination of manythousands of specimens, is, to quote his own words,as follows : "Among the three hundred and fiftyspecies (of trilobites) of Bohemia, there is not a single one which can be considered as having producedby its variations a new specific form, distinct andpermanent. Thus, the traces of transformation by

OB JE C TIONS A GA INS T E VOL U TION, \ 55way of filiation, are completely imperceptible amongthe trilobites of the Silurian Age in Bohemia." Concerning cephalopods, of which more than athousand distinct forms are described, M. Barrandedeclares, that there is not one among them, howeverlong the species may have lasted, which, during thedifferent stages of its existence, presents more markeddifferences than do those which coexist on the samehorizon that not a single one of the countless ceph ;alopods which were examined by him, can be considered as even the first step towards transformation,for all these forms disappear simultaneously, without any recognizable posterity. 1 In view of the importance of M. Barrande^ testimony, Ihere present his conclusions in full, as found in his work entitled,Defense" des Colonies, p. 155." Les Trilobites de Boheme qui offrent dans leurs formes i.la trace de quelques variations sont au nombre de 10. Commenous connaissons aujourd hui 350 especes de cette tribu, dansnotre bassin, on voit qu il en reste environ 340 qui paraissentconserver une forme invariable, pendant toute la duree de leurexistence." Les variations signalees dans les especes qui ont joui de 2.la plus grande longevite, sont relatives seulement aux dimensionsdu corps, a la grosseur des yeux, au nombre correspondant deslentilles, au nombre des articulations visibles du pygidium, et aunombre des pointes ornementales." Ces variations ne sont pas permanentes, maisfurement 3.temporaires, et, dans la plupart des cas, nous^avons constate leretour des derniers rcpresentants de Vespece a la forme typiqueou primitive. Ainsi ces variations ne semblent etre que desoscillations transitoires. Elles se manifestent quelquefois parmides individus contemporains, et, par consequent, sans 1 innuencedes ages geologiques. "4. Parmi les 350 especes de Boheme, il n en existe aucunequi puisse etre consideree com me ayant produit, par ses variations, une nouvelle forme specifique, distincte et permanente.Ainsi, les traces de la transformation, par voie de filiation, sontconpletement imperceptibles parmi les trilobites du Silurien deBoheme,"

156 EVOLUTION AND DOGMA. Davidson s exhaustive researches on the brachio-pods of the English formations, lead him to the sameconclusions as those arrived at by Barrande after hisprolonged studies of the trilobites and cephalopodsof Bohemia, viz., that there is not the slightesttrace of any tendency towards development on thepart of the species examined. Similar testimony is given by Mr. Williamsonregarding fossil plants. After forty years of patientstudy of the vegetable remains of different geological ages, he does not hesitate to affirm that the fernswhose imprints are of such frequent occurrence incertain strata of the Carboniferous Age, have retained their essential characteristics until the presenttime. For, if we compare those which now aboundin our forests with those which gave beauty to thelandscape in Paleozoic time, we find that they haveneither advanced nor retrograded. It were easy to add to the list of persistent typesof animals and plants, of those, namely, which endured unchanged during long geologic periods. Imight speak of the terebratulae and globigerinaewhich take us back to the Cretaceous Period of ;certain types of scorpions which flourished duringthe Carboniferous Age and which are scarcely distinguishable from modern scorpions ; of the lingulaeand lingulellae which, appearing in the lower Silurian rocks, have persisted practically unchangedthrough all the grand climacterics of the world. 1 1 For able and dignified discussions of the questions hereconsidered, see " Paleontologie et Danvinisme," by the eminentBelgian geologist, Charles de la Vallee Poussin, in the " Revue

OBJECTIONS AGAINST EVOLUTION. 157 In the preceding pages I have presented fully,and somewhat in detail, one of the stock arguments ofanti-evolutionists against the transmutation of species. I have allowed the ablest and most noted opponents of the Evolution theory to present their objection in their own words, and have endeavored to selectwhat have always been considered the most tellingarguments against transpeciation. What, now, is theanswer to the objection, or is any answer possible?What explanation can be given of facts which seemso utterly irreconcilable with the cardinal principlesof Evolution, and so antagonistic to the fundamental tenets of the leading exponents of transformism. Misapprehension of the Nature of Evolution and Answer to Objections. The objection, as presented, rests on a totalmisapprehension of the nature of Evolution. Itassumes that when an animal or a vegetable formonce comes into existence, it must necessarily andcontinuously undergo progressive modifications. Itassumes, too, that such modifications as may occur, must take place at the same rate in one form oflife as in another. Both these postulates are equallyunwarranted, for they are both totally at variancewith Evolution as understood by its founders andapproved spokesmen. An answer, however, to the objection, was indicated nearly a century ago by Cuvier s great con-de Questions Scientifiques " for and Le1877,"Trans- January,formisme et la Discussion Libre," in the same review for January and April, 1889, by De. Kirwan, who writes under thepseudonym of Jean d Estienne.

158 I OL / T/O.V AND DOGMA.temporary, Lamarck. Replying to the argumentbased on the unchanged condition of the faunaand flora of Egypt, he observed that the" animalsand plants referred to had not experienced anymodification in their specific characters, because theclimate, soil and other conditions of life had not But he theif,"varied in the interval. " continued,physical geography, temperature and other naturalconditions of Egypt, had altered as much as weknow they have done in many countries in thecourse of geological periods, the same animals andplants would have deviated from their pristine typesso widely as to rank as new and distinct species." This answer of Lamarck s is, with some modifications, the answer which is now given by men ofscience to the objection under consideration. Whenever the environment remains unchanged, where theconditions of life are always identical, the fauna andflora of a given area may persist without any specific mutations for an indefinite period of time. Regarding Egypt it is notorious, that its climate andsoil are to-day precisely what they were during thereign of the first of the Pharaohs, and precisely whatthey were when the bull Apis was led in solemn procession to the temples of Memphis and Heliopolis.As to other examples of animals and plants whichhave resisted specific change, not only during thousands, but also millions of years, the same answermay be given. The environment may have beenmodified more or less, but not sufficiently to effect" Philosophic Zoologique," pp. 70, et seq.

OBJECTIONS AGAINST EVOLUTION. 159transmutation of the species named. For it mustbe borne in mind, that all species are not equallysusceptible of change in consequence of mutationsof climate and physical geography. Some are morestable and more cosmopolitan than others, andhence are capable of accommodating themselveswithin certain limits to quite considerable changesin surrounding conditions, without exhibiting theslightest indications of specific transmutations.weThen, too, have elastic" types," those types,namely, which as M. Gaudry tells us, have thepower of undergoing greater or less modificationsand of returning sooner or later to their originalcondition. The rhynconella is a case in point.When the ocean bed is in anywise modified, rhynconella exhibits a corresponding change ; when theocean returns to its original state, rhynconella reverts to its pristine condition. Thus, in virtue ofits elasticity, of its facility of accommodating itselfto changes of environment, this marvelous brachio-pod has been able to pass unscathed throughmutations and catastrophes innumerable. Again, it may be observed, that the changes ofenvironment are not always so great as they aresometimes imagined to be. Thus, the conditions of may remain practilife in a given area of the ocean Thecally unchanged for long geological periods.temperature and depth of the water might easilyremain constant for untold aeons, and, in such anevent, there is no reason why the ocean fauna shouldnot endure without variation for an indefinitetime.

160 E VOL U TION A ND DOGMA . Even in the case of the vegetable organismswhich Mr. Carruthers puts in evidence, there isreason to believe that the variations in climate towhich they have been subject, have been far lessWethan is usually thought. can say of these whatDarwin asserts of certain Arctic forms, that they"will not have been exposed to any great diversity oftemperature and, as they all migrated in a bodytogether, their mutual relations will not have beenmuch disturbed." Where, however, Arctic specieshave been left stranded on Alpine areas by theretreat of glaciation, and where the species thusisolated have been subsequently exposed to differences of climate, and to the influences of foreignplants and insects, we would expect to discoverevidences of transmutation, to find the strandedspecies to differ, not only from their parent Arcticforms, but to differ also from those of the sameorigin occurring on neighboring mountain ranges.And what Darwinthis is the fortells us, is " if," fact,he says, " we compare the present Alpine plants andanimals of the several great European mountainranges, one with another, though many of thespecies remain identically the same, some exist asvarieties, some as doubtful forms or sub-species, andsome as distinct, yet closely allied species, representing each other on the several * ranges."In the instance just quoted, as in countlessothers that might be adduced, we have an illustration of a phenomenon with which all naturalists areThe Origin1<l of Species," vol. II, p. 154.2 Op. cit. vol. II, p. 155.

OBJECTIONS AGAINST EVOLUTION. 161familiar, to-wit, that some types, both of animalsand plants, are more plastic than others. Thosewhich are the most plastic most readily undergospecific transformation, whilst, on the contrary,those which are rigid experience little or no change,even when exposed to very considerable mutationsof environment. Existence and Cause of Variations. Of the existence of variations, numerous and important, there can then be no reasonable doubt. Thisfact, long known, is daily corroborated by evidencewhich cannot be gainsaid. But the existence ofvariations must not be confounded with the causewhich originates them, for this, as yet, is shroudedin mystery. Huxley admits this without hesitationand refers to it as follows : The" cause of the production of variations is a matter not at all properlyunderstood at present. Whether variation dependsupon some intricate machinery, if I may use the phrase, of the living organism itself, or whether it arises through the influence of conditions upon that form, is not certain, and the question for the present may be left open. But the important point is that, granting the existence of the tendency to the production of variations, then, whether the varia tions which are produced shall survive and supplant the parent, or whether the parent form shall survive and supplant the variations, is a matter which de pends entirely on those conditions which give rise to the struggle for existence. If the surrounding conditions are such that the parent form is more

162 EVOLUTION AND DOGMA.competent to deal with them, and flourish in them,than the derived forms, then in the struggle for existence the parent form will maintain itself and thederived forms will be exterminated. But if, on thecontrary, the conditions are such as to be more favorable to a derived than to a parent form, the parentform will be extirpated and the derived form will takeits place. In the first place there will be no progression, no change of structure, through anyimaginable series of ages ; and in the second placethere will be modification and change of form." Paucity of Transitional Forms. The second objection, like the preceding, is anobvious one, and at first sight equally plausible. Itis based on the paucity of transitional forms, or " missing links," in the various sedimentary strata ofthe earth s crust. At first blush the objectionseems to be fatal to the theory of Evolution, as itcertainly would be fatal, if well founded, to the theory of natural selection, which supposes that specieshave advanced from lower to higher forms by infinitesimal increments. So much importance, indeed,does Darwin attach to this objection, that he devotesa whole in his " of " chapter Origin Species to its solution. And although he frankly admits that thegeological record, so far as at present known, stillopposes insuperable difficulties to his theory of natural selection, it does not follow, as we shall see farther on, that such difficulties can validly be urged HebrewandScience1 " Tradition," pp. 83 and 84.

OBJECTIONS A GAINST E VOL UTION. 163against the general theory of organic Evolution, asdistinguished from Evolution through natural selection. In the first place it is to be observed, that transitional forms are the first to become extinct in thestruggle for existence; for it is well known thatcompetition is more marked and devastating amongintermediate or intercalated forms, than among formswhich are more widely divergent. Thus, in philology it is remarked, that among a large number ofdialects, certain closely allied ones die out, whilstothers, more widely differentiated, become the dominant forms of speech. The means perish, while theextremes wax strong and end by attaining supremacy. Hence, of the countless dialects which in Italy,France and Spain had their origin in the Latintongue, but three have attained to the dignity of adominant language, and of being the vehicle of anational literature. These three are what are nowknown as the Italian, French and Spanish languages,the competing dialects having been worsted in thestruggle for existence, and condemned to an earlier orlater extinction. A process quite analogous to this goes on amongthe divers forms of animated nature, the meansshowing themselves the weaker, and the extremesexhibiting themselves the stronger in the contestfor supremacy. Commenting on this fact, Darwinwrites as follows: "As the species of the same genususually have, though by no means invariably, muchsimilarity in habits and constitution, and always instructure, the struggle will generally be more severe

164 EVOLUTION AND DOGMA.between them, if they come into competition witheach other, than between the species of distinctWegenera. see this in the recent extension overthe United States, of one species of swallow, havingcaused the decrease of another species. The recentincrease of the missel-thrush in parts of Scotland hascaused the decrease of the song-thrush. How frequently we hear of one species of rat taking the placeof another species under the most different climates !In Russia, the small, Asiatic cockroach has every-where driven before it its great congener. In Australia, the imported hive-bee is rapidly exterminatingthe small, stingless, native bee. One species of charlock has been known to supplant another species ;Weand so in other cases. can dimly see why competition should be most severe between allied formswhich fill nearly the same place in the economy ofnature but probably in no one case could we pre ;cisely say why one species had been victorious overanother in the great battle of life."Variations and the Formation of Fossiliferous Deposits. Then again, it must be observed that it is notprobable that variation has been going on at a uniformrate during the long course of the life-history of theearth. On the contrary, it is more likely that longperiods of stability have alternated with brief periodsof disturbance of greater or less extent. During theformer periods specific forms would experience comparatively little change, whereas, during the latter,variations would rapidly accumulate and be strongly1 Origin of Species," vol. I, pp. 93 and 94. "The

OBJECTIONS AGAINST EVOLUTION. 165accentuated. Such being the case, the number ofgradational forms will be far less numerous than theforms contained in the species which persist withlittle or no modifications during long cycles of time. Furthermore, it is now generally admitted thatthe strata which are richest in fossils were usually, ifnot always, deposited during eras which were leastfavorable for the development of transitional forms,that is, during eras when variation and extinctionwere least rapid. On the theory that natural selection has been the dominant factor in Evolution on ;the theory, namely, that progress has resulted solely,or at least chiefly, in consequence of the accumulation of infinitesimal increments, a condition of thingsmust have existed during the formation of fossilifer-ous strata, which it is certain could have obtainedonly at extremely rare intervals. For, as Darwinpoints out : " In order to get a perfect gradation between two forms in the upper and lower parts of thesame formation, the deposit must have gone on continuously accumulating during a long period sufficient for the slow process of modification; hencethe deposit must be a very thick one, and the species undergoing change must have lived in the samedistricts throughout the whole time. But we haveseen that a thick formation, fossiliferous throughoutits entire thickness, can accumulate only during aperiod of subsidence ; and to keep the depth approximately the same, which is necessary that the samemarine species may live on the same space, the supply of sediment must nearly counterbalance theamount of subsidence. But this same movement of

1 (J6 E VOL UTION A ND DOC MA .subsidence will tend to submerge the area whencethe sediment is derived, and thus diminish the supply whilst the downward movement continues. Infact, this nearly exact balancing between the supplyof sediment and the amount of subsidence is probably a rare contingency ; for, it has been observedby more than one paleontologist, that very thick deposits are generally barren of organic remains, exceptnear their upper or lower limits." The foregoing are but a few of the reasons thatmight be assigned for the paucity of intermediateforms which characterizes the earth s fossil-bearingstrata. When we come to reflect on the matter,however, the wonder is not that there is such a smallnumber of gradational forms, but rather that thereare any fossils at all. For everything has tended torender their formation impossible ; and in the comparatively few instances in which circumstances havebeen favorable to the fossilization of animal or vegetable forms, a variety of circumstances has intervenedto compass their destruction. Such being the case,therefore, we should be surprised, not at the existence of such extensive tracts that are utterly devoidof any traces of organic life, but rather at the factthat there are so many formations in different partsof the world which contain such a wealth of fossilremains. For let us consider for a moment under what adverse conditions the slight vestiges of the fauna andflora of the ancient world have been preserved ;what are a few of the agents of destruction, how 1 Op. cit., vol. II, pp. 68 and 69.

OBJECTIONS AGAINST EVOLUTION. 167continuous their action, and how inevitable their efWefect. shall then learn that evolutionists havereason for insisting so strongly on the imperfectionof the geological record, and for appealing to the results of future research and discovery for a confirmation of certain facts of their theory, and for an explanation of certain difficulties which, as matters nowstand, are admittedly insoluble. As to the formation of fossils, it is, as is wellknown, only the hard portions of organisms whichare ever fossilized. But even these, as well as thesofter parts, soon suffer disintegration unless in someway screened from sub-aerial agencies competent todecompose them, and unless they are protected fromthe solvent action of salt water, or fresh water holding carbonic acid in solution. Again, as Darwin remarks, " we probably take aquite erroneous view, when we assume that thesediment is being deposited over nearly the wholebed of the sea at a rate sufficiently thick to embedand preserve fossil remains. Throughout an enormously large proportion of the ocean, the brightblue tint of the water bespeaks its purity. Themany cases on record of a formation conformablycovered, after an immense interval of time, by another and later formation, without the underlyingbed having suffered in the interval any wear andtear, seem explicable only on the view of the bottomof the sea not rarely lying for ages in an unalteredcondition." In" regard to the mammiferous remains," the same authority continues, "a glance at^. cit., vol. II, p. 58.

168 EVOLUTION AND DOGMA.the historical table published in Lyell s Manual*will bring home the truth, how accidental and rare istheir preservation, far better than pages of detail.Nor is their rarity surprising when we consider howlarge a proportion of the bones of Tertiary mammalshave been discovered either in caves or in lacustrinedeposits ; and that not a cave or true lacustrinebed is known belonging to the age of our secondaryor Palaeozoic 1 formations." But if the formation of fossils be rare and something wholly exceptional, when we consider themyriad organisms which are never fossilized if ;shells and bones are always disintegrated unlessadequately protected from the countless unfavorableand destructive agencies to which they are exposed,their preservation, after having been formed, issomething which, when the facts of the case areknown, must appear even more remarkable.Romanes on Difficulties Attending Preservation of Fossils. Mr. George Romanes, Darwin s favorite and mostardent disciple, has so accurately and picturesquelydescribed the divers agencies which contribute tothe annihilation of fossil forms, that I need make noapology for quoting him at length. more"But of even importance, "he writes, "thanthis difficulty of making fossils in the first instance, isthe difficulty of preserving them when they aremade. The vast majority of fossils have beenformed under water, and a large proportional number of these, whether the animals were marine, ter- 1 Ibid, pp. 59 and 60.

OBJECTIONS AGAINST EVOLUTION. 169restrial, or inhabitants of fresh water, have beenformed in sedimentary deposits either of sand,gravel or other porous material. Now, where suchdeposits have been afterwards raised into the airfor any considerable time, and this has been moreor less the case with all deposits which are avail-able for exploration, their fossiliferous contents willhave been, as a general rule, dissolved by the per-colajtion of rain-water charged with carbonic acid.Similarly, sea-water has recently been found to bea surprisingly strong solvent of calcareous material ;hence, Saturn-like, the ocean destroys its own progeny as far as shells and bones of all kinds are concerned, and this to an extent of which we haveprobably no adequate conception. Of" still greater destructive influence, however,than these solvent agencies in earth and sea, are theerosive agencies of both. Anyone who watchesthe pounding of the waves upon the shore who ;then observes the effect of it upon the rocks brokeninto shingle, and on the shingle reduced to sand ;who, looking behind him at the cliffs, sees there evidence of the advance of this all-pulverizing power anadvance so gradual that no yard of it is accomplisheduntil within that yard the * white teeth have eatenwell into the bowels of the earth who then reflects ;that this process is going on simultaneously overhundreds of thousands of miles of coast-lines throughout the world and who finally extends his mental ;vision from space to time, by trying dimly to imagine what this ever-roaring monster must haveconsumed during the hundreds of millions of years

170 EVOLUTION AND DOGMA.that slowly rising and slowly sinking continents haveexposed their whole areas to her jaws ; whoeverthus observes and thus reflects must be a dull man, ifhe does not begin to feel that in the presence ofsuch a destroyer as this we have no reason to wonderat a frequent silence in the testimony of the rocks. " But although the erosive agency of the sea isthus so inconceivably great, it is positively small ascompared with erosive agencies on land. The constant action of rain, wind and running water, inwearing down the surfaces of all lands into thedust of continents to be the disintegrating effects ;on all but the hardest rocks of winter frosts alternating with summer heats the grinding power of ;ice in periods of glaciation, and last, but not least,the wholesale melting up of sedimentary formations whenever these have sunk any considerabledistance beneath the earth s surface all theseagencies taken together constitute so prodigiousa sum of energies, combined through immeasurableages in their common work of destruction, thatwhen we try to realize what it must amount to,we can scarcely fail to wonder, not that the geological record is highly imperfect, but that so much ofthe record has survived as we find to have been thecase. And, if we add to these erosive and solventagencies on land the erosive and solvent agencies ofthe sea, we almost begin to wonder that anythingdeserving the name of geological record is in existence at 1 all." 1 i4 Darwin and After Darwin," vol. I, pp. 423-425. For anexhaustive discussion of the disintegrating and destructive ef-

OBJECTIONS AGAINST EVOLUTION. 171 That the effects of denudation are not exaggerated in the preceding quotation, is manifest froma number of facts to which Darwin has directed attention, and of which he was the first to realize thetrue import in their bearings on Evolution. InEurope, but especially in North and in South America, there are immense areas, embracing many thou-sands of square miles, in which the surface rocks areentirely granitic or metamorphic. This implies thatdenudation has here taken place on a tremendousscale. And the utter absence of fossils in such rocksshows conclusively how completely the work of destruction was accomplished, so completely, indeed,that of the animal and vegetable remains whichmust have originally existed in these portions of theearth not a vestige now remains. In view of suchfacts Darwin considers it "quite probable, that insome parts of the world whole formations havebeen completely denuded, with not a wreck left behind."Small Percentage of Fossil Forms.WeBut this is not all. have positive evidencethat during certain periods many species existed incountless numbers, although, so far, not a fragmentof bone has been found within the area in whichthey once flourished. The strange, bird-like formsthat once inhabited the Connecticut valley are instances in point. Although more than a score offects of aqueous, glacial and igneous agencies, the reader mayconsult with profit the pages of Lyell s admirable " Principles ofGeology."

1 72 E VOL UTION AND DOGMA.species of this character had their habitat in thedistrict, and in its vicinity, the only tangible evidenceswhich we yet possess that they ever existed, are thetracks and foot-prints which they left in the shalesand sandstones of Connecticut and New Jersey.In other cases, again, all that has so far beendiscovered of what, in their time, were manifestlyimportant species, is a single tooth, or a single bone,or even only a small fragment of bone. That futureresearch will disclose remains of these species, inlarger quantities or in greater numbers, there isreason to believe, but however rich the finds maybe, it will always be true that the fossils which havebeen preserved are but an insignificant portion ofthose which were actually formed, and that the remains of organisms which were fossilized were but aninfinitesimal part of those which were completelydestroyed before fossilization was possible.Darwin s observations on sessile cirripeds corroborate in the most striking manner what has beenstated in the preceding paragraphs, and show howa large group of animals, represented by an extraordinary number of individuals all over the world, inevery latitude and " various zones of inhabitingdepths from the upper tidal limit to fifty fathoms,"may fail to leave even a trace of their existence duringlong geological periods. " Not long ago, paleontologists maintained that the whole class of birds camesuddenly into existence during the Eocene Period ;but now we know, on the authority of Prof. Owen,that a bird certainly lived during the Upper Green-sand and still more recently that strange bird, the ;

OBJE C TIONS A GA INS T E VOL U TION. 173archaeopteryx, with a long lizard-like tail bearing apair of feathers on each joint, and with its wingsfurnished with two free claws, has been discoveredin the Oolitic slates of Solenhofen. Hardly anyrecent discovery shows more forcibly than this howlittle we as yet know of the former inhabitants ofthe 1 world." Another important fact we should not lose sightof is, that as yet but a comparatively small portionof the earth has been explored by geologists. Theformations of the earth in North America are fairlywell known, but even in these portions of the worldthere is still much to be learned. As to SouthAmerica, Asia, Africa, Australia, they are for themost part terra incognita to the paleontologist.Such being the case it were foolish in the extreme todogmatize on the sequence of organic forms in pastgeologic time, or to attempt to base an argumentagainst Evolution on the absence of certain transitional types and on the consequent imperfection ofthe record so far at our disposal. It has been estimated that not so much as oneper cent., of the countless species of animals whichhave flourished since the first dawn of life, has leftthe slightest trace of its past existence. Marineforms, as might be expected, are better representedthan land forms. Indeed there are not wantingthose who assert, that of terrestrial types not morethan one species in a thousand is represented byknown fossils.The 8aandOrigin1 "of vol. II, pp. 79 Species,"

174 EVOLUTION AND DOGMA. Extraordinary Intercalary Forms.But in spite of the rarity of fossils in comparisonwith the almost infinite number of individuals represented in spite of the paucity of fossil species as ;compared with the total number which must haveexisted since the advent of life in spite of the lim ;ited area of the earth which has so far been explored by the paleontologist, there are, as indicatedin the preceding chapter, many examples of intercalary forms of the most extraordinary character.And all the instances adduced, be it remembered,constitute so much positive evidence in behalf ofthe theory of organic Evolution. The absence oftransitional varieties in certain formations is, at best,but negative evidence, and such evidence is of butlittle value, or rather it is of no value, in face of allthe positive evidence which recent research hasbrought to light. Thanks to the discoveries ofGaudry, Marsh, Cope and others, the number ofintermediate forms has, within the past few years,been wonderfully augmented, and there is everyreason to believe that future exploration will, in likemanner, contribute towards filling up many of thelacunae which at present are pointed to as difficultiesin the way of yielding rational assent to the currenttheory of transformism.may" be asserted," Prof. Fiske truth Indeed, itfully observes, "as one of the most significant truthsof paleontology, that extinct forms are almost always intercalary between forms now existing. Notonly species, genera and families, but even orders of

OBJECTIONS AGAINST EVOLUTION. 175contemporary animals, apparently quite distinct, arenow and then fused together by the discovery ofextinct intermediary forms. In Cuvier s time, horse,tapir, pig and rhinoceros were ranked as a distinctorder from cow, sheep, deer, buffalo and camel.But so many transitional forms have been foundin Tertiary strata, that pachyderms and ruminantsare now united in a single order. By numerousconnecting links the pig is now seen to be closelyunited with the camel and the antelope. Similarresults relating to the proboscidians, the hyenafamily of carnivora, the apes, the horse and the rhinoceros, have been obtained from the explorationof a single locality near Mount Pentelicus in Greece.Among more than seventy species there discovered, the gradational arrangement of forms was sostrongly marked, that the great paleontologist, M.Gaudry, became a convert to Mr. Darwin s theoryin the course of the search." Indeed, so much wasM. Gaudry, who renews in our own day the triumphs of Cuvier in paleontology, impressed bythe fossil remains of Greece and the transitionalforms of other lands, that he did not hesitate thirtyyears ago to declare, that " the more we advance andfill up the gaps, the more we feel persuaded thatthe remaining voids exist more in our knowledgeAthan in nature. few blows of the pick-axe at thefoot of the Pyrenees, of the Himalayas, of MountPentelicus a few diggings in the sand-pits of Ep- ;pelsheim or in the Mauvaises Terres of Nebraska,have revealed to us the closest connecting linksCosmic and401 " Philosophy," vol. II, pp. 41.

176 E I OL UTION AND DOGMA.between forms which seemed before so widely separated. How much closer will these links be drawnwhen paleontology shall have escaped from its 1cradle." Imperfection of the Geological Record. What precedes supplies us with an answer regarding two great difficulties on which anti-evolutionists have always laid special stress. Thesedifficulties, briefly stated, are the sudden apparitionof whole groups of allied species in certain formations, even in the lowest fossiliferous strata, without any previous transitional forms leading up tosuch groups, and the occurrence in geological timeof numerous animal forms of a much highergrade than an evolutionist should antecedently expect. From what has already been said not only respecting the absence of countless species, but also of the denudation of immense areas which must at one timehave been rich in important fossiliferous deposits, it ismanifest that the objection is at best but a neutralone, and as such may be dismissed as in nowise seriously affecting the contention of evolutionists. Regarding the appearance in the earlier strata of animals which are zoologically of a higher grade thanthe principles of Evolution would lead one to lookfor, it may be said in reply that the objection urgedproves, at most, that the imperfection of the geological record is even more extensive than it has usuallybeen thought to be, and, likewise, that the advent of Les Animaux Fossiles de Pikermi," p. 34.