[1918] Mr. Eyles, in a letter.
[1919] Hildebrandt, ‘Ethnographische Notizen über Wakamba und ihre Nachbaren,’ in ‘Zeitschr. f. Ethnol.,’ vol. x. p. 401.
[1920] Krasheninnikoff, loc. cit. p. 212.
[1921] Bastian, ‘Rechtsverhältnisse,’ p. 172.
[1922] Riedel, loc. cit. pp. 302, 335, 351.
[1923] Dalton, loc. cit. p. 81.
[1924] Kovalevsky, ‘Marriage among the Early Slavs,’ in ‘Folk-Lore,’ vol. i. p. 475.
[1925] Burton, ‘First Footsteps,’ p. 119.
[1926] Morgan, ‘Houses and House-Life of the American Aborigines,’ p. 73.
[1927] Ibid., p. 64.