[2948] Humboldt, ‘Political Essay,’ vol. i. pp. 251, et seq.
[2949] Belly, ‘À travers l’Amérique Centrale,’ vol. i. p. 253, note.
[2950] Sturt, loc. cit. vol. ii. pp. 77, 136, et seq.
[2951] Grey, loc. cit. vol. ii. p. 251.
[2952] Waitz-Gerland, loc. cit. vol. vi. p. 813.
[2953] Davy, loc. cit. p. 289.
[2954] Haeckel, ‘Indische Reisebriefe,’ p. 240.
[2955] Marshall, loc. cit. p. 100.
[2956] Shortt, in ‘Trans. Ethn. Soc.,’ N. S. vol. vii. p. 241.
[2957] Man, in ‘Jour. Anthr. Inst.,’ vol. xii. p. 81.