The differences between “races” are shown in the somatological characteristics which are the resultant of the continual struggle in the individual of two factors: variability, that is to say, the production of the dissimilar; and heredity, that is to say, the perpetuation of the similar. There are the differences in outer form, in the anatomical structure, and in the physiological functions manifested in individuals. Thus the study of these characters is based on man considered as an individual of a zoological group. On the other hand, the differences between the ethnical groups are the product of evolutions subject to other laws than those of biology—laws still very dimly apprehended. They manifest themselves in ethnical, linguistic, or social characteristics. The study of them is based on the grouping of individuals in societies.
To study these two categories of characteristics, either in their general aspect as a whole, or in describing successively the different peoples, is to study mankind with the object of trying to assign the limits to the “races” constituting the ethnical groups, and to sketch the reciprocal relations and connections of these groups with each other.
The science which concerns itself more especially with the somatological characteristics of the genus Homo, whether considered as a whole in his relation to other animals, or in his varieties, bears the name of anthropology; that which deals with the ethnical characteristics is called ethnography in some countries and ethnology in others.
This latter science should concern itself with human societies under all their aspects; but as history, political economy, etc., have already taken possession of the study of civilised peoples, there only remain for it the peoples without a history, or those who have not been adequately treated by historians. However, there is a convergence of characters in mankind, and we find even to-day the trace of savagery in the most civilised peoples. Ethnical facts must not then be considered separately. We must compare them either among different peoples, or, down the course of the ages, in the same people, without concerning ourselves with the degree of actual civilisation attained.
Certain authors make a distinction between ethnography and ethnology, saying the first aims at describing peoples or the different stages of civilisation, while the second should explain these stages and formulate the general laws which have governed the beginning and the evolution of such stages. Others make a like distinction in anthropology, dividing it theoretically into “special” and “general,” the one describing races, and the other dealing with the descent of these races and of mankind as a whole.[8] But these divisions are purely arbitrary, and in practice it is impossible to touch on one without having given at least a summary of the other. The two points of view, descriptive and speculative, cannot be treated separately. A science cannot remain content with a pure and simple description of unconnected facts, phenomena, and objects. It requires at least a classification, explanations, and, afterwards, the deduction of general laws. In the same way, it would be puerile to build up speculative systems without laying a solid foundation drawn from the study of facts. Already the distinction between the somatic and the ethnic sciences is embarrassing; thus psychological and linguistic phenomena refer as much to the individual as to societies. They might, strictly speaking, be the subject of a special group of sciences. In the same way, the facts drawn from the somatic and ethnic studies of extinct races are the subject of a separate science—Palethnography, otherwise Prehistory, or Prehistoric Archæology.
The object of this book being the description of ethnical groups now existing on the earth, and of the races which compose them, the title of “Ethnography” might fitly be given to it in conformity with the classifications which have just been mentioned. Nevertheless, it contains in its early chapters a summary, as it were, of what these classifications style “General Anthropology and Ethnology,” for the descriptions of the several peoples can scarcely be understood if we have not in the first instance given at least a general idea of the somatic as well as the ethnic characters which serve to distinguish them.
CHAPTER I.
SOMATIC CHARACTERS.
DISTINCTIVE CHARACTERS OF MAN AND APES.