Sionan Tribes of the East, 1894.
Third Annual Report of the Bureau of Ethnology, for 1881-82 (1884), pp. xliv-xlv.
Notably in "Relation of primitive peoples to environment, illustrated by American examples," Smithsonian Report for 1896, pp. 625-638, especially p. 635.
Neither space nor present occasion warrants discussion of the curious aphrodisian cults found among many peoples, usually in the barbaric stage of development; it may be noted merely that this is an aberrant branch from the main stem of institutional growth. The subject is touched briefly in "The beginning of marriage," American Anthropologist, vol. IX, pp. 371-383, Nov., 1896.
The History of Human Marriage (London, 1891), especially chapters iv-vi, xiii-xv, xx-xxii.