[8] Muir, ‘Original Sanskrit Texts,’ vol. ii. p. 327.
[9] Goguet, ‘The Origin of Laws, Arts, and Sciences,’ vol. iii. pp. 311, 313.
[10] Ibid., vol. i. p. 22.
[11] Goguet, loc. cit. vol. ii. p. 19.
[12] v. Düben, ‘Lappland och Lapparne,’ p. 330.
[13] Brehm, ‘Thierleben,’ vol. ix. p. 16.
[14] Günther, ‘Introduction to the Study of Fishes,’ p. 163.
[15] Wood, ‘Illustrated Natural History,’ vol. iii. p. 3.
[16] Espinas, ‘Des sociétés animales,’ p. 416.
[17] Milne Edwards, ‘Leçons sur la physiologie et l’anatomie comparée,’ vol. viii. p. 496.