Blackwood's Edinburgh Magazine, Volume 56, Number 347, September, 1844

It may be thought that, in the existing state of man, few marks remain from which his early history may be deduced; but those unacquainted with the progress of inductive research, would be astonished at the magnitude and importance of results derivable from an apparently simple and worthless object. An unthinking wanderer, stumbling upon an ancient tombstone, if reproached with inattention, would ask what is to be learned from such a relic. A word of inscription would give a clue to the language, and, coupled with other observations, to the date of the monument; the character of the stone, whether roughly hewn or elaborately carved, would give evidence as to the tools used in its formation, and consequently furnish a key to the manufacturing and metallurgic knowledge of the fabricators. The stone itself might possibly not be similar to those in the immediate vicinity, and thence would indicate that travelling and the power of transfer were practised, and the skeleton within would indicate the physical formation of the men of that day. We have selected here a case of an ordinary grave, but how much stronger would the case be were we to take a sarcophagus of Egypt, enclosing a mummy? The inscription, the fabric of the cere-cloth, the chemical substances with which it is impregnated, as well as those by which the body is preserved, and the relics commonly deposited with it, would lead, by careful investigation, to a tolerably accurate knowledge of the character and habits of the time; and where many relics of different descriptions, collected from different parts, are skilfully compared, a body of evidence is arrived at, minutely circumstantial in its details, and the veracity of which admits of no dispute. As the researches of comparative anatomists have enabled us, from the examination of a single bone, to pronounce with certainty upon the general conformation and habits of the animal to which it belonged; and as, in many cases, from the existence of such animals, we may go on, step by step, to the nature of the earth’s surface at the period when they lived: so the meanest relic of art will serve the natural historian of man as a fulcrum by which he may turn up a mass of genuine information; with which, as with all knowledge, as its store increases, the power of applying it becomes more facile; until at length it scarcely becomes an exaggeration to say, that every material relic bears in itself its own natural history, and, if artificially modified, the history of its fabricators—what the germ is to futurity the relic is to the past.

From the data which Dr Prichard has given us, in a somewhat scattered form, we shall endeavour to collect and group the most interesting of his facts and opinions. In order to ascertain what modifications of physical structure, variation of climate, food, and habits, may effect upon mankind, it is necessary, first, to review the effects produced by such variation upon domesticated animals. It is indeed questionable whether we can in any case, with certainty, trace these to their native wilds; but, in many cases, we have instances of their return to a savage state, as with the wild horses, goats, oxen, &c.; and although it does not necessarily follow that their conformation, induced by such return, is identical with their original structure, yet there is a reasonable probability that such is the case, and we must take these cases for want of better. How far, then, has the outward form been altered by the changes induced by domestication; how far are instincts acquired by such changes capable of hereditary transmission, and is there any, and what, connexion between the changed instincts and the changed structure? These questions, involving   among other things the infant and difficult science of phrenology, Dr Prichard has left very much to conjecture. Whether he considers the data too imperfect, or is afraid of trusting himself with any decided expression of opinion on a subject which has been so obscured by charlatanry, and which is open to so much misapprehension, does not appear; but it certainly is an apparently striking defect, that where a large portion of the work is devoted to the explanation of the different forms of the cranium in the inferior animals and in man, and to which the largest portion of his pictorial illustrations apply, he should give us so little insight into his opinions as to what extent phrenology is fairly entitled to credibility. His having taken so much pains in collecting facts and drawings on this point, necessarily leads to the inference that he attaches much value to the craniological distinctions. We shall take an opportunity presently of recurring to this subject. We will now take some of the most interesting instances, given by Dr Prichard, of structural changes and hereditary instincts, acquired by domesticated animals, and again lost by them on returning to a wild state:—

“Swine transported from Europe to America, since the discovery of the western continent by the Spaniards in the fourteenth century, and wandering at large in the vast forests of the New World, and feeding on wild fruits, have resumed the manner of existence which belonged to the original stock. Their appearance nearly resembles that of the wild boar. Their ears have become erect; their heads are larger, and the foreheads vaulted at the upper part; their colour has lost the variety found in the domestic breeds. The wild hogs of the American forests are uniformly black. The hog which inhabits the high mountains of Paramos bears a striking resemblance to the wild boar of France. His skin is covered with a thick fur, often somewhat crisp, beneath which is found, in some individuals, a species of wool. From excessive cold and defect of nourishment, the hog of that region is of small and stunted figure. In some warm parts of America, the swine are not uniformly black, as above described, but red, like the young pecari. At Melgara and other places, there are some which are not entirely black, but have a white band under the belly reaching up to the back; they are termed cinchados. The restoration of the original character of the wild boar in a race descended from domesticated swine, removes all reason for doubt, if any had really existed, as to the identity of the stock; and we may safely proceed to compare the physical characters of these races, as varieties which have arisen in one species. The restoration of one uniform black colour, and the change of thin sparse hair and bristles for a thick fur with a covering of wool, are facts that must be noticed in the observations of M. Roulin. The difference in the shape of the head between the wild and domestic hog of America, is very remarkable. Blumenbach long ago pointed out the great difference between the cranium of our swine and that of the primitive wild boar. He remarked that this difference is quite equal to that which has been observed between the skull of the Negro and the European. ‘Those persons,’ he says, ‘who have no opportunity of verifying the fact, have only need to cast their eyes on the figure which Daubenton has given of both the former. I shall pass over,’ he adds, ‘the lesser varieties of breeds which may be found among swine, as among men, and only mention that I have been assured by M. Sobzer, that the peculiarity of having the bone of the leg remarkably long, which in the human kind is observed among the Hindoos, has been remarked with regard to swine in Normandy. They stand very long on their hind legs; their back, therefore, is highest at the rump, forming a kind of inclined plane; and the head proceeds in the same direction, so that the snout is not far from the ground.’

“‘Swine,’ continues Blumenbach, ‘in some countries have degenerated into races which, in singularity, far exceed every thing that has been found strange in bodily variety among the human race. Swine with solid hoofs were known to the ancients, and large breeds of them are found in Hungary and Sweden. In like manner, the European swine first carried by the Spaniards in 1509 to the island of Cubagua, at that time celebrated for its pearl fishery, degenerated into a monstrous race, with toes which were half a span in length.’ There are breeds of solid-hoofed swine in some parts of England. The hoof of the swine is also found divided into five clefts.

“Buffon had before remarked the   varieties of the hog tribe. ‘In Guinea,’ he observes, ‘this species has acquired very long ears, couched upon the back; in China, a large pendant belly, and very short legs; at Cape Verde and other places, very large tusks, crooked like the horns of oxen; in domestication, half pendant and white ears.’”

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“A very remarkable fact relative to the oxen of South America is recorded by M. Roulin, to which M. Geoffrey St Hilaire has particularly adverted, in the report made by him on M. Roulin’s Memoir, before the Royal Academy of Sciences.

“In Europe, the milking of cows is continued through the whole period, from the time when they begin to bear calves till they cease to breed. This secretion of milk has become a constant function in the animal economy of the tribe; it has been rendered such by the practice, continued through long series of generations, of continuing to draw milk long after the period when it would be wanted for the calf; the teats of the cow are larger than in proportion, and the secretion is perpetual. In Columbia, the practice of milking cows was laid aside, owing to the great extent of farms and other circumstances. ‘In a few generations,’ says M. Roulin, ‘the natural structure of parts, and withal, the natural state of the function, has been restored. The secretion of milk in the cow of this country is only an occasional phenomenon, and contemporary with the actual presence of the calf. If the calf dies, the milk ceases to flow, and it is only by keeping him with his dam by day, that an opportunity of obtaining milk from cows by night can be found.’ This testimony is important, by the proof which it affords that the permanent production of milk in the European breeds of cows is a modified function of the animal economy, produced by an artificial habit continued through several generations. Two other very important observations made by M. Roulin in South America, were pointed out by M. Geoffrey St Hilaire in his report to the Academy of Sciences. They refer to the fact of the hereditary transmission of habits originally impressed with care and art upon the ancestors. Of this fact I shall adduce other examples in the sequel; at present I only advert to M. Roulin’s observations. The horses bred in the grazing farms on the table-land of the Cordillera, are carefully taught a peculiar pace, which is a sort of running amble. This is not their natural mode of progression, but they are inured to it very early, and the greatest pains are taken to prevent them from moving in any other gait. In this way the acquired habit becomes a second nature. It happens occasionally that such horses, becoming lame, are no longer fit for use; it is then customary to let them loose, if they happen to be well-grown stallions, into the pasture grounds. It is constantly observed that these horses become the sires of a race to which the ambling pace is natural, and requires no teaching. The fact is so well known, that such colts have received a particular name; they are termed ‘aguilillas.’

“The second fact is, the developement of a new instinct, which, as M. Roulin declares, seems to become hereditary in the breed of dogs found among the borderers on the river Madeleine, which are employed in hunting the pecari. I shall cite the author’s own words:—‘L’addresse du chien consiste à modérer son ardeur à ne s’attacher à aucun animal en particulier, mais à tenir toute la troupe en échec. Or, parmi ces chiens, on en volt maintenant qui, la première fois qu’on les amène au bois, savent dejà comment attaquer; un chien d’une autre espèce se lance tout d’abord, est environné, et quelle que soit sa force, il est dévoré dans un instant.’”

To these cases we may add a case familiar to the sportsmen of this country, and one of which we have ourselves seen an unquestionable instance, viz. the acquired habit of the setting-dog in arresting his steps, and crouching, when in pursuit of game; the origin of which was probably a pause in his career, in order the better to ascertain the position of the game of which he was in quest; but this, by constant teaching, has become hereditary to such an extent, that occasionally a dog of pure breed will, the first time he is taken out, as soon as he gets on the scent of game, crouch or place himself in a setting attitude, and remain perfectly immobile until forced to proceed; nay further—as it is necessary that the sportsman teach the dogs who are in the same field with that one who discovers the game, as soon as they see the latter setting to arrest their steps likewise; or, as it is termed, to back,   in order not to disturb the game—in the instance which came under our notice, a dog of eight or nine months old, which had never been out of a town, when taken into the fields for the first time with an old well-trained dog, as soon as the latter had discovered game, and pointed to it, instantly backed him—i.e. remained stiffly standing in the position in which he was when he first caught sight of the older dog: probably many sportsmen could be found who would vouch to similar facts.

We may here state that we quite agree with Dr Prichard, as to the absence of any foundation for the general belief, that all the acts of inferior animals are performed without their consciousness or view to any object or end; on the contrary, there is every probability that they, in carrying into effect their several instincts, seem to themselves to act from similar internal impulses of will and intention, as human beings do.

We need not enter into the vast number of varieties which the most domestic of all domesticated animals, the dog, exhibits; we shall only remark, that, in all their varieties, Dr Prichard says,—

“Restored to a state of comparative wildness, which approaches to their unreclaimed and primitive condition, the tribes of dogs every where make a corresponding approximation to the type which may be supposed to have belonged to the species in its original state.”

But this passage is enigmatical, as the original type seems to be involved in dense obscurity. Buffon considered the shepherd dog to be the least modified by domestication—very erroneously, according to Dr Prichard; it is still a vexata questio, whether the original progenitor of the dog be a wolf, a jackal, a fox, or an unknown animal differing from all these.

“The sheep is one of the most anciently domesticated animals, and it is one in which great varieties display themselves. It has been long believed, and this appears to have been the opinion of Baron Cuvier, that all the breeds of tamed sheep are descended either from the argali of Siberia, or from the moufloun or musmon of Barbary. This is at present doubted by most naturalists. There seems, however, to be no reason for believing that the domestic breeds belong to more than one species, though they differ much in different countries. In Europe, the breeds of sheep vary much in stature, in the texture of their wool, the number and shape of their horns, which are in some large, in some small, in others wanting to the female, or altogether absent from the breed. The most important varieties in Europe are the Spanish breeds, some with fine, others with crisp wool, in which the rams have long spiral horns; the English breeds, which differ greatly in size and in the quality of the wool; and, in the southern parts of Russia, the long-tailed breed. The breeds of sheep in India and in Africa are remarkable for the length of their legs, a very convex forehead, and pendant ears; these also have long tails. Their covering is not wool, but a smooth hair. In the northern parts of Europe and Asia the sheep have short tails. The breeds spread through Persia, Tartary, and China, have their tails transformed into a double spherical mass of fat. The sheep of Syria and Barbary, on the other hand, have long tails, but likewise loaded with a mass of fat. In both of these varieties of the sheep the ears are pendant, the horns of the rams large, and those of the ewes and lambs of moderate size, and the body is covered with wool, mixed more or less with hair.

“New breeds of sheep are frequently formed in different countries in which particular qualities predominate, according to the preference of the breeders. This is done, partly by crossing or intermixing races already constituted and well known; but in great part also by selecting individuals from the stock in which the particular qualities are more strongly marked than in the generality of the same breed. In these instances, the natural or congenital variety which the individual animal displays, perhaps for the first time, becomes perpetuated by the hereditary transmission of such characters, which is a law of the animal economy. A striking instance of this fact is to be found in the origination of a new breed of sheep in the state of Massachusetts, which has been noticed by many writers in connexion with this subject. In the year 1791, one ewe on the farm of Seth Wright gave birth to a male lamb, which, without any known cause, had a longer body and shorter   legs than the rest of the breed. The joints are said to have been longer, and the fore-legs crooked. The shape of this animal rendering it unable to leap over fences, it was determined to propagate its peculiarities, and the experiment proved successful; a new race of sheep was produced, which, from the form of the body, has been termed the otter breed. It seems to be uniformly the fact, that when both parents are of the otter breed, the lambs that are produced inherit the peculiar form.”

We might extract other instances of physiological and psychological changes induced by domestication, but we think enough have been given to show the character and degree of such changes. The least important change, and that which appears the soonest affected, is the colour of the skin and hair. This is universally of an uniform tint in wild animals, and generally bears a close approximation to the colour of the land in which the animal lives: thus the ptarmigan, inhabiting snowy regions, is white; the grouse has the colour of heath; the hare that of dry fern or furze—a provision which has the effect of protecting the weaker tribes from the stronger and predatory ones. In domesticated animals, from causes apparently not as yet traced, the colour is variegated and various. Closely connected with the colour and nature of the skin, are the size and shape of the horns, their presence and absence. Great as is the apparent variety of appearance effected by horns, changes in these appear to be easily induced: they are connected with the epidermic structure, generally the most easily modified; and we need not cite instances to prove that different breeds of the same tribe, and occasionally different individuals of the same breed, differ materially as to horns. According to Azara, horned horses are sometimes seen in Paraguay.

Very little appears to be known, at least scarcely any intimation is given in the work before us, of the proximate or final cause of these changes. Great as they are, certainly, as far as we can judge, no nisus formativus can account for the enormous horns of the Spanish sheep; nor, looking to the final cause; does there appear any reason why domestic animals should need such overgrown instruments of defence. When, however, we come to the more important anatomical modifications, such as the length and shape of the legs, the bones of the pelvis or of the jaw, the object is more apparent. A greyhound, with the muzzle of a bull-dog, would be an obvious natural inconsistency.

We now pass to the physical distinctions of the different races of men. Here we may observe that a much greater importance is to be attached to comparatively slight variations. Considering the surprising external differences that exist in domesticated animals of the same species, the wonder rather is, that the different races of men differ physically so little as they do, than that they differ so much. Here we will take first, the least important shades of difference—the texture of the skin, hair, and complexion; and then pass on to the more prominent diversities of the bony fabric, cranium, &c.

“The texture of the body, in which all these varieties have their seat, is the extracorial or exodermal structure, constituting, if I may so speak, the outer coating of the body, external to the true skin, which corresponds to the cuticular and corneous excrescences of animals—a structure which includes horns, hoofs, hair, feathers, and all similar appendages in different orders of animals. This structure displays infinite diversities in colour, constitution, and organization, and is the most variable tissue on the whole body. Many different opinions have, however, been lately maintained, and much research has been made, as to the nature and texture of the parts on which the variety of colour depends.”

The ancient anatomists, it appears, recognised only two parts of the skin—the true skin, and the outer cuticle or epidermis. Malpighi discovered a third layer interposed between these, consisting of a sort of network, thence called rete mucosum, and believed to be the seat of colour in the negro. Albinus showed this to be a continuous layer, and not a network. Cruikshank discovered four layers—three membranes, and the fourth a layer of colour. Flourens, at a more recent period, made the number of intermediate layers five, four of which he showed to the French Academy; one   of these, a mucous membrane underlying the pigment, is, according to this anatomist, a distinct organized body, existing only in men of dark colour, and entirely wanting in the white races, or else (which appears the more probable conjecture) maceration, and the ordinary process of examination, fail to detect it in the skin of white men. Lastly, the microscopical researches of Henle, Purkinje, and Schwann, go to prove that the outer integument does not consist of separate membranes, but is of a cellular structure, and that of these cells or “cytoblasts,” there are three distinct kinds. We will not further analyse the different opinions as to the texture of the skin and position of the colouring material; it certainly throws no inconsiderable degree of doubt over certain classes of scientific investigation, to find each subsequent research entirely altering, and in some cases overturning, the previously received views.

To the different characters of human complexion, Dr Prichard gives three distinctive terms—the melanous or brunette; the xanthous or blonde; and the leucous or albino; the melanous predominating in the southern countries, the xanthous in the northern. It is observable here, that although the natural divisions of territory with respect to complexion, (supposing climate to have the principal modifying effect upon complexion,) would be the equatorial and polar regions, or the zones of the earth which differ in latitude, yet, with some few exceptions, it is only on the northern side of the equator that the xanthous complexion prevails—the inhabitants of Australia and the South Sea Islands being very generally melanous. The distribution of land and water cannot well be conceived to have any influence upon climate which would account for such diversity; it is probably, therefore, a result of long-continued civilization, the covering the body with clothes, and being for the most part sheltered from the direct rays of the sun. The leucous complexion is an abnormal variety, and occurs occasionally in all countries. It proceeds from the absence of the dark colouring matter, or pigment; there appears in this case, however, no difference of anatomical structure, the pigment being sometimes subsequently developed in persons who have been born albinoes. The change from the xanthous to the melanous complexion, is a circumstance of constant occurrence; there are few children born, whose complexion does not darken as they grow up, in many cases undergoing a total change: the passage from dark to fair is rare, but it constantly occurs that xanthous, or even leucous children, are born of melanous parents. There is nothing, therefore, in the diversities of complexion which indicates specific diversity in different human races. Of the conformation of the bony fabric in the human race, the formation of the skull is the part of the greatest importance; we shall only therefore briefly notice, as to the other parts of the skeleton, that between the most uncultivated races of men, and those tribes of apes which most nearly approach man, there is a wide difference—the arms of the orang-outang reach to the ankle, and those of the chimpanzee below the knee; the pelvis, or central bony fabric, differ much from those of the human race.