[1138] Wilson and Felkin, vol. ii. p. 96.
[1139] Schweinfurth, loc. cit. vol. i. p. 322.
[1140] Ibid., vol. i. p. 163.
[1141] Cameron, ‘Across Africa,’ vol. i. pp. 285, et seq.
[1142] Last, in ‘Proceed. Royal Geo. Soc.,’ N. S. vol. v. p. 530.
[1143] Johnston, p. 413, note.
[1144] Bontier and Le Verrier, loc. cit. pp. 138, 139, xxxv.
[1145] Wundt, loc. cit. p. 127.
[1146] Powers, loc. cit. p. 233.
[1147] Waitz, loc. cit. vol. iii. p. 446.