[28]

(44

Ch. 6

animals we have ample evidence *(37) that by careful selection a crossed breed can certainly be fixed & made uniform in the course of a few generations by careful selection *(37), we may conclude as highly probable that the free & continued intercrossing of a heterogenious mixture during any many generations would probably supply take the place of selection & overcome the tendency to reversion; so that ultimately in the case of man a crossed the race would become made homogenious; though it would not in all probability partake in an equal degree of the characters of both parent-races.)

(one line open)

(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.

This Differences of this kind were formerly thought to be accounted for by the prolonged action of different climates; but Pallas first showed that this view was is not tenable, & he has been followed by almost all anthropologists. *(38)