Havelock Ellis

Studies in the Psychology of Sex (Vol. 1-6)


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1895.)

      Wiltshire ("Lectures on the Comparative Physiology of Menstruation," British Medical Journal, March, 1888) and Westermarck (History of Human Marriage, Chapter II) enumerate the pairing season of a number of different animals.

      With regard to the breeding seasons of monkeys, little seems to be positively known. Heape made special inquiries with reference to the two species whose sexual life he investigated. He was informed that Semnopithecus entellus breeds twice a year, in April and in October. He accepts Aitcheson's statement that the Macacus rhesus, in Simla, copulates in October, and adds that in the very different climate of the plains it appears to copulate in May. He concludes that the breeding season varies greatly in dependence on climate, but believes that the breeding season is always preserved, and that it affects the sexual aptitude of the male. He could not make his monkeys copulate during February or March, but is unable to say whether or not sexual intercourse is generally admitted outside the breeding season. He quotes the observation of Breschet that monkeys copulate during pregnancy.