[128] Brehm, vol. i. pp. 370, 404, 431; vol. ii. pp. 6, 325, 420; vol. iii. pp. 111, 158, 159, 578, 599.
[129] Brehm, ‘Thierleben,’ vol. ii. p. 313.
[130] Ibid., vol. iii. pp. 699, 723.
[131] Ibid., vol. iii. p. 482.
[132] Ibid., vol. ii. p. 440.
[133] Ibid., vol. i. pp. 119, 147, 182, 228. Schomburgk, loc. cit. vol. ii. p. 767.
[134] Brehm, vol. iii. pp. 480. It is also remarkable that the birds on the Galapagos Islands, which are situated almost on the equator, seem to have no definite breeding season (Markham, ‘Visit to the Galapagos Islands,’ in ‘Proceed. Roy. Geo. Soc.,’ N. S. vol. ii. p. 753).
[135] Reade, loc. cit. p. 214.
[136] ‘Das Ausland,’ 1872, p. 850. Hartmann, loc. cit. p. 230. Huxley, ‘Evidence as to Man’s Place in Nature,’ p. 33.
[137] Burton, ‘Gorilla Land,’ vol i. p. 248.