Chapter 7: CHAPTER VI
Ethnology and history of the sexual life of man and of
marriage--Origin of marriage--Antiquity of matrimonial
institutions--Criticism of the doctrine of promiscuity--
Marriage and celibacy--Sexual advances and demands of
marriage--Methods of attraction--Liberty of choice--Sexual
selection--Law of resemblance--Hybrids--Prohibition of
consanguineous marriages--Role of sentiment and calculation
in sexual selection--Marriage by purchase--Decadence of
marriage by purchase--Dowry--Nuptial ceremonies--Forms of
marriage--Duration of marriage--History of extra-nuptial
sexual intercourse 144
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