[687] 'Journal of Roy. Geographical Soc.,' vol. ix., 1839, p. 275.
[688] 'Travels in Bokhara,' vol. iii. p. 151.
[689] See also, on the influence of marshy pastures on the wool, Godron, 'L'Espèce,' tom. ii. p. 22.
[690] Isidore Geoffroy St. Hilaire, 'Hist. Nat. Gén.,' tom. iii. p. 438.
[691] Azara has made some good remarks on this subject, 'Quadrupèdes du Paraguay,' tom. ii. p. 337. See an account of a family of naked mice produced in England, 'Proc. Zoolog. Soc.,' 1856, p. 38.
[692] 'Die Fauna der Pfahlbauten,' 1861, s. 15.
[693] 'Schweinschædel,' 1864, s. 99.
[694] 'Travels in Siberia,' Eng. translat., vol. i. p. 228.
[695] A. R. Wallace, 'Travels on the Amazon and Rio Negro,' p. 294.
[696] 'Naturgeschichte der Stubenvögel,' 1840, s. 262, 308.