[33] ‘Travels in Bokhara,’ vol. iii. p. 151.
[34] See also, on the influence of marshy pastures on the wool, Godron, ‘L’Espèce,’ tom. ii. p. 22.
[35] Isidore Geoffroy Saint-Hilaire, ‘Hist. Nat. Gén.,’ tom. iii. p. 438.
[36] Azara has made some good remarks on this subject, ‘Quadrupedes du Paraguay,’ tom. ii. p. 337. See an account of a family of naked mice produced in England, ‘Proc. Zoolog. Soc.,’ 1856, p. 38.
[37] ‘Die Fauna der Pfahlbauten,’ 1861, s. 15.
[38] ‘Schweineschädel,’ 1864, s. 99.
[39] ‘Travels in Siberia,’ Eng. translat., vol. i. p. 228.
[40] A. R. Wallace, ‘Travels on the Amazon and Rio Negro,’ p. 294.
[41] ‘Naturgeschichte der Stubenvögel,’ 1840, s. 262, 308.
[42] ‘Hist. Nat Gén.,’ tom. iii. p. 402.