Note 395 — Chapter III · THEORY OF THE ORIGINAL PAIRING OR MONOGAMOUS FAMILY
Reading edition
On sterility as the result of crossing in species, see Wallace, Darwinism, 152-86; Darwin, Animals and Plants under Domestication, II, 78 ff.; and on the good effects of crossing and the evil effects of close interbreeding, ibid., II, 92-126, 104. Cf. Quaterfages, The Human Species, 85-88 (crossing species), 276-86 (effects of crossing in mixed races); Mitchell, "Blood-Relationship in Marriage," in Memoirs of London Anth. Society, 1865, II, 402-56; and Withington, Consanguineous Marriages, 2 ff., who believes the injurious effects of such unions on the offspring have been overestimated. On the other hand, it has been maintained that under primitive conditions the advantages of close intermarriage may have outweighed all disadvantages: Mucke, Horde und Familie, 245-47, combating Westermarck's view.