The communism in the family life of the exogamous Indians of North America has been exhaustively illustrated by Mr. Morgan in his work on ‘Houses and House-Life of the American Aborigines.’ “The household of the Mandans,” he says, “consisting of from twenty to forty persons, the households of the Columbian tribes of about the same number, the Soshonee household of seven families, the households of the Sauks, of the Iroquois, and of the Creeks, each composed of several families, are fair types of the households of the Northern Indians at the epoch of their discovery. The fact is also established that these tribes constructed, as a rule, large joint tenement houses, each of which was occupied by a large household composed of several families, among whom provisions were in common, and who practised communism in living in the household.”[1926] Among the Iroquois, each household was made up on the principle of kinship through females, so that the married women, usually sisters, own or collateral, being of the same gens or clan, together with their children made a family circle, within which, as we have seen, intermarriage was entirely prohibited.[1927] The Senel in California live sometimes from twenty to thirty together in the same immense dome-shaped or oblong lodge of willow-poles, including all who are blood relations.[1928] According to Egede, the Greenlanders, who prohibit marriage between cousins, continue after marriage to live in their parents’ house together with other kindred; and what they get they all enjoy in common.[1929] The Chippewas, who consider cousins german in the same light as brothers and sisters, but do not recognize relationship beyond this degree, are divided into small bands consisting of but few families each.[1930] Among the exogamous Uaupés, the houses are the abode of numerous families, and sometimes of a whole horde.[1931] Among the Yahgans, who regard marriage between first and second cousins as incestuous, “occasionally as many as five families are to be found living in a wigwam, but generally two families.”[1932]