[3178] Ibid., p. 137.
[3179] Müller, ‘Am Neste,’ p. 102. Brehm, ‘Bird-Life,’ pt. iv. ch. ii. Darwin, ‘The Descent of Man,’ vol. ii. pp. 293-295.
[3180] Brehm, ‘Bird-Life,’ pp. 288, et seq.
[3181] Houzeau, ‘Études sur les facultés mentales des animaux,’ vol. ii. p. 117.
[3182] Gibbs, loc. cit. p. 198.
[3183] Waitz, loc. cit. vol. iii. p. 102.
[3184] Dalton, loc. cit. p. 273.
[3185] Waitz, vol. ii. p. 117.
[3186] Wilkes, loc. cit. vol. iv. p. 45. Seemann, ‘Viti,’ p. 192. Ellis, ‘Polynesian Researches,’ vol. i. p. 267.
[3187] Waitz-Gerland, vol. vi. p. 756. For other instances, see ibid., vol. vi. p. 125; ‘Das Ausland,’ 1857, p. 888.