[544] Holub, Süd-Afrika, I p. 432. [↑]
[545] Casalis, pp. 197, 236. [↑]
[546] Passarge, Okawangosumpfland, pp. 704, 705, 710 711. [↑]
[547] Livingstone, Zambesi, p. 125; Livingstone, Miss. Trav., pp. 88, 93. [↑]
[549] Holub, Süd-Afrika, I p. 397. [↑]
[550] Joest, Weltfahrten, I p. 253. [↑]