[160] ‘Investigations,’ &c. By B. A. Gould, 1869, p. 288.

[161] ‘Säugethiere von Paraguay,’ 1830, s. 4.

[162] ‘History of Greenland,’ Eng. translat. 1767, vol. i. p. 230.

[163] ‘Intermarriage.’ By Alex. Walker, 1838. p. 377.

[164] ‘The Variation of Animals under Domestication,’ vol. i. p. 173.

[165] ‘Principles of Biology,’ vol. i. p. 455.

[166] Paget, ‘Lectures on Surgical Pathology,’ vol. i. 1853, p. 209.

[167] ‘The Variation of Animals under Domestication,’ vol. i. p. 8.

[168] ‘Säugethiere von Paraguay,’ s. 8, 10. I have had good opportunities for observing the extraordinary power of eyesight in the Fuegians.’ See also Lawrence (‘Lectures on Physiology,’ &c., 1822, p. 404) on this same subject. M. Giraud-Teulon has recently collected (‘Revue des Cours Scientifiques,’ 1870, p. 625) a large and valuable body of evidence proving that the cause of short-sight, “C’est le travail assidu, de près.

[169] Prichard, ‘Phys. Hist. of Mankind,’ on the authority of Blumenbach, vol. i. 1851, p. 311; for the statement by Pallas, vol. iv. 1844, p. 407.