[38] Ibid., pp. 20, 38.
[39] Schomburgk, ‘Reisen in Britisch-Guiana,’ vol. iii. p. 767.
[40] Brehm, vol. i. p. 228.
[41] Brehm, ‘Thierleben,’ vol. i. p. 97.
[42] ‘Proceedings of the Royal Geographical Society,’ vol. xvi. p. 177.
[43] Mohnike, ‘Die Affen auf den indischen Inseln,’ in ‘Das Ausland,’ 1872, p. 850. See also Hartmann, ‘Die menschenähnlichen Affen,’ p. 230.
[44] Wallace, ‘The Malay Archipelago,’ vol. i. p. 93.
[45] Savage, ‘Description of Troglodytes Gorilla,’ pp. 9, et seq.
[46] Du Chaillu, ‘Explorations and Adventures in Equatorial Africa, p. 349.
[47] Reade, ‘Savage Africa,’ p. 214.