This ingenious historical investigation points out the east as the earliest and original seat of our species, the source of our domesticated animals and our principal vegetable food; but it by no means decides whether the globe was peopled by one or several original stocks.
The startling nature of this question on the first view of the subject must induce us to consider the circumstance of these five distinct varieties arising from one stock as miraculous; but when we compare them with the corresponding difference in animals, we can easily come to the conclusion that the various races of human beings are only to be regarded as varieties of a single species, without supposing the intervention of any supernatural agency.
The sceptic Voltaire, who evinced more wit than learning in his endeavours to invalidate Scriptural tradition by ridicule, thus expresses himself: “Il n’est permis qu’à un aveugle de douter que les blancs, les négres, les albinos, les Hottentots, les Lapons, les Chinois, les Américains, soient des races entièrement différentes;” but had this philosopher been better versed in zoology and physiology, he would not have made so groundless an assertion. “Analogical and direct facts,” says Dr. Elliotson, “lead to the conclusion that none of the differences among mankind are so great as to require the belief of their originality.” A contrary opinion, however, should not be stigmatized by bigotry, for Locke has justly observed that only matters above human reason are the proper subjects of revelation; and Bacon has also maintained that religious and philosophical inquiries should be kept separate, and not pompously united. Dr. Bostock, than whom no man could be less sceptical, plainly admits that we do not find that the writer of the book of Genesis lays claim to any supernatural source of information with respect to natural phenomena, while the whole tenour of his work seems to show that on such topics he adopted the opinions which were current among his contemporaries.
The causes of the difference of our species have been the subject of as great a discrepance in opinion. Most of the Greek and Roman Historians have attributed it to the influence of climate; and amongst the moderns, Montaigne, Montesquieu, Buffon, and Zimmerman, have considered the modification of the individual and the degeneration of the offspring as the result of this external agency. Lord Kaimes, Hume, and many other philosophers, have entertained a contrary opinion. No doubt, the influence of climate may materially affect colour, stature, hair, features, and even the moral and intellectual character; but it must be considered as inadequate to act upon conformation. The prevalence of light colours in the animals of polar regions is well known: the arctic fox, the white bear, the snow-bunting, are striking instances of this peculiarity; but these circumstances are purely superficial. The skulls of these individuals are similar to those of the Europeans; nay, it is well known that light races are found among dark nations, and many protected parts of the body are blacker than those which are exposed. Buchanan tells us, that the Jews in Cochin are divided into white and black classes, though born under the same parallel; the white Jews having been known there for upwards of one thousand seven hundred years. Dr. Shaw and Bruce describe a race of fair people, near Mount Aurasius in Africa, with red hair and blue eyes, and who are, according to tradition, descended from the Vandals. We find the red Peruvian, the brown Malay, and the white Abyssinian in the very zones peopled by jet black races. This influence of temperature upon colour frequently varies according to the seasons. Pallas observed that even in domestic animals, such as the horse and cow, the coat is of a lighter colour in winter. The Siberian roe, red in summer, is white in the winter; the fur of the sable and the martin is much deeper in the warm months; and the squirrel and mustela nivalis, which become white in Siberia and Russia, do not change their hue in Germany. The winter coat, it has been observed by naturalists, is found far advanced in the preparatory autumn. This bounteous provision of nature seems to have been extended to the vegetable kingdom and it has been observed that the pellicle of onions is much thicker on the approach of a severe winter than on that of a more temperate season. But if further proof were necessary to impugn this doctrine respecting climate, we may adduce the fact of a woman having borne twins of different complexions, a white and a black. With all due respect to the much-lamented Bishop Heber, we must receive with some degree of hesitation his assertion that the Persian, Greek, Tartar, and Arabian inhabitants of India, assume, in a few generations, without any intercourse with the Hindoos, a deep blue tint, little lighter than that of a negro; and that the Portuguese, during three hundred years’ residence in that climate, have assumed the blackness of a Kaffer. The same learned prelate is of opinion that our European complexion was not primitive, but rather that of an Indian; an intermediate tint is perhaps the most agreeable to the eye and instinct of the majority of the human race. Dr. Heber, perhaps, had not seen, in various Roman catholic treasures, portraits of the Virgin Mary, painted, according to tradition, by St. Luke, and in which she is represented as a negress.
That solar heat produces blackness of the integuments is an ancient opinion, and is illustrated by Pliny, who tells us, “Æthiopes vicini sideris vapore torreri, adustisque similes gigni, barba et capillo vibrato, non est dubium.” Buffon asserts that “climate may be regarded as the chief cause of the different colours of man;” and Smith is of opinion “that from the pole to the equator we observe a gradation in the complexion nearly in proportion to the latitude of the country.”
Blumenbach, under the same impression, endeavours to account for this black tinge by a chemical illustration somewhat curious. He states that the proximate cause of the dark colour is an abundance of carbon secreted by the skin with hydrogen, precipitated and fixed by the contact of the atmospheric oxygen. Our creoles, and the British inhabitants of India, may esteem themselves particularly fortunate in not being subject to this chemical operation!
On the other hand, it is well known that a black state of the skin has been produced in white races under peculiar circumstances; and Le Cat and Camper mention cases of women who turned dark during their pregnancy. It would be idle to dwell further on the hypothetic illustrations regarding this supposed operation of climate, which the observation of every unprejudiced traveller can impugn. Yet the following remarks on the subject by an American divine, the Rev. J. S. Smith are worthy of notice:
“In tracing the globe from the pole to the equator we observe a gradation in the complexion nearly in proportion to the latitude of the country, immediately below the arctic circle a high and sanguine colour prevails. From this you descend to the mixture of red and white. Afterwards comes the brown, the blue, the tawny, and at length the black as you proceed to the line. The same distance from the sun, however, does not in any degree indicate the same temperature of climate. Some secondary causes must be taken into consideration, in connecting and limiting its influence. The elevation of the land, its vicinity to the sea, the nature of the soil, the state of cultivation, the course of the winds, and many other circumstances enter into this view. Elevated and mountainous countries are cool in proportion to their altitude above the level of the sea, increasing to the ocean, just in opposite effects, in northern and southern latitudes; for the ocean being of a more equal temperature than the land, in one case corrects the cold, and in the other moderates the heat. Ranges of mountains, such as the Apennines in Italy, and Taurus, Caucasen, and Iman, in Asia, by interrupting the course of cold winds, render the quite dry country below them warmer, and the countries above them colder, than is equivalent to the proportionate difference of latitude. The frigid zone, in Asia, is much wider than it is in Europe; and that continent hardly knows a temperate zone.”
Climate also receives some difference from the nature of the soil, and some from the degree of cultivation; sand is susceptible of greater heat than clay, and an uncultivated region shaded with forests and covered with undrained marshes, is more frigid in northern and more temperate in southern latitudes, than a country laid open to the direct and constant action of the sun. History informs us that when Germany and Scythia were bound in forests, the Romans often transported their armies across the frozen Danube; but since the civilization of those barbarous regions, the Danube rarely freezes.
Migration to other countries has also been adduced as one of the causes of variety in mankind; but the permanency of the characteristic distinctions of any race militates against this supposition. The physical character of the Celts, who peopled the west of Europe at an early period, is still observable in the Spaniard, most of the French, the native Welsh, the Manks, and the Scotch Highlander; whereas the German race, who occupied the more northern and eastern settlements, are still distinguished by their transparent skin, rosy complexion, flaxen hair, and blue eyes; and in Ireland, the race of the Danes and the Milesians can to this day be recognised in their respective characters. Shaw and Bruce traced the descendants of the Vandals who passed from Spain into Africa in the fifth century; and, after a lapse of thirteen centuries, Bruce says that they are “fair like the English, their hair red, and their eyes blue.” Negroes have been introduced into the New World for upwards of three centuries, where, despite of a new clime and different habits, they still retain the character of their race; and the Jews who have not intermarried out of their nation, have preserved their features for nineteen centuries.