A. Sutherland, Origin and Growth of the Moral Instinct, vol. i, pp. 8, 187. As has been shown by, for instance, Dr. Iwan Bloch (Beiträge zur Ætiologie der Psychopathia Sexualis, Erster Theil, 1902), every perverse sexual practice may be found, somewhere or other, among savages or barbarians; but, as the same writer acutely points out (p. 58), these devices bear witness to the need of overcoming frigidity rather than to the strength of the sexual impulse.
Ploss and Bartels have brought together in Das Weib a large number of facts in the same sense, more especially under the headings of Abstinenz-Vorschriften and Die Fernhaltung der Schwangeren. I have not drawn upon their collection.
Journal of the Anthropological Institute, May, 1896, p. 369.
Hyades and Deniker, Mission Scientifique du Cap Horn, vol. vii, p. 188.