Note 19 — Introduction.

It is pointed out by Topinard,19 as a somewhat important piece of evidence, that, in the West, about Madagascar and the point of Aden in Africa, there are black tribes with smooth hair, or, at all events, large numbers of individuals who have it, mingled particularly among the Somālis and the Gallas, in the region where M. Broca has an idea that some dark, and not Negro, race, now extinct, once existed. At the meeting of the British Association, 1898, Mr. W. Crooke gave expression to the view that the Dravidians represent an emigration from the African continent, and discounted the theory that the Aryans drove the aboriginal inhabitants into the jungles with the suggestion that the Aryan invasion was more social than racial, viz., that what India borrowed from the Aryans was manners and customs. According to this view, it must have been reforming aborigines who gained the ascendancy in India, rather than new-comers; and those of the aborigines who clung to their old ways got left behind in the struggle for existence.