[1598] Mayer, ‘Die Mechanik der Wärme,’ p. 98.
[1599] Tylor, ‘Anthropology,’ p. 86.
[1600] de Quatrefages, loc. cit. p. 255.
[1601] Rohlfs, ‘Henry Noël von Bagermi,’ in ‘Zeitschr. f. Ethnol.,’ vol. iii. p. 255.
[1602] Reade, loc. cit. p. 526.
[1603] Ibid., p. 526.
[1604] Peschel, loc. cit. p. 92.
[1605] Wallace, in ‘The Academy,’ vol. ii. p. 182.
[1606] Quoted by Schaaffhausen, in ‘The Anthropological Review,’ vol. vi. p. 418.
[1607] Cf. Schaaffhausen, ‘Darwinism and Anthropology,’ ibid., vol vi. pp. cviii., et seq.