[319] ‘The Variation of Animals and Plants under Domestication,’ vol. ii. p. 95.
[320] Pallas, ‘Act. Acad. St. Petersburgh,’ 1780, part ii. p. 69. He was followed by Rudolphi, in his ‘Beyträge zur Anthropologie,’ 1812. An excellent summary of the evidence is given by Godron, ‘De l’Espèce,’ 1859, vol. ii. p. 246, &c.
[321] Sir Andrew Smith, as quoted by Knox, ‘Races of Man,’ 1850, p. 473.
[322] See De Quatrefages on this head, ‘Revue des Cours Scientifiques,’ Oct. 17, 1868, p. 731.
[323] Livingstone’s ‘Travels and Researches in S. Africa,’ 1857, p. 338, 329. D’Orbigny, as quoted by Godron, ‘De l’Espèce,’ vol. ii. p. 266.
[324] See a paper read before the Royal Soc. in 1813, and published in his Essays in 1818. I have given an account of Dr. Wells’ views in the Historical Sketch (p. xvi) to my ‘Origin of Species.’ Various cases of colour correlated with constitutional peculiarities are given in my 'Variation of Animals under Domestication,’ vol. ii. p. 227, 335.
[325] See, for instance, Nott and Gliddon, ‘Types of Mankind,’ p. 68.
[326] Major Tulloch, in a paper read before the Statistical Society, April 20th, 1840, and given in the ‘Athenæum,’ 1840, p. 353.
[327] ‘The Plurality of the Human Race’ (translat.), 1864, p. 60.
[328] Quatrefages, ‘Unité de l’Espèce Humaine,’ 1861, p. 205. Waitz, 'Introduct. to Anthropology,’ translat. vol. i. 1863, p. 124. Livingstone gives analogous cases in his ‘Travels.’