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Acacia Farnesiana —

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Of all the differences between the various races of man, the colour of the skin & hair is the most conspicuous & one of the best marked. Differences of this kind, were it was formerly thought thought, could to be accounted for by the prolonged actions of different climates; but Pallas first showed that this view is not tenable, & he has been followed by almost all anthropologists.* 39 (38)

It The view has been rejected chiefly because the distribution of the variously coloured races, most of whom must of have long inhabited their present homes, does not coincide with corresponding differences of the climate.

Weight must, also, be given to such cases as that of the Dutch families, who, as we hear on excellent authority,* 40 (39), have not undergone the least change of colour, after residing for three centuries in South Africa. The uniform appearance in various parts of the world of gypsies & Jews, though