[1608] M. Elisée Reclus (quoted by de Quatrefages, loc. cit. p. 255) makes a curious mistake when he asserts that, at the end of a given time, whatever be their origin, all the descendants of whites or of negroes who have immigrated to America will become Redskins.

[1609] Weismann, ‘Essays upon Heredity,’ &c., p. 81.

[1610] Weismann, loc. cit. pp. 81, &c. Godron, loc. cit. vol. ii. p. 299.

[1611] Rauber, ‘Homo sapiens ferus,’ pp. 69-71.

[1612] Poiret, ‘Voyage en Barbarie,’ vol. i. p.  31.

[1613] Mr. Wallace (‘Contributions to the Theory of Natural Selection,’ Essay ix.), so far as I know, is the only investigator who has tried to explain, by the principle of natural selection, the origin of human racial distinctions.

[1614] A negro child is not born black, but becomes so after some shorter or longer time (Darwin, ‘The Descent of Man,’ vol. ii. p. 342. Caillié, loc. cit. vol. i. p.  351). The children of dark races are usually fairer than the adults (Darwin, vol. ii. p. 342. Moseley, in ‘Jour. Anthr. Inst.,’ vol. vi. p. 385).

[1615] Camper, ‘Kleinere Schriften,’ vol. i. p.  44.

[1616] Darwin, ‘The Descent of Man,’ vol. ii. pp. 384, et seq.

[1617] Ibid., vol. ii. p. 383.