This form of the family, now, furnishes with complete accuracy the degrees of kinship expressed by the American system. The children of the sisters of my mother still are her children; likewise the children of the brothers of my father still his children; and all of them are my brothers and sisters. But the children of the brothers of my mother are now her nephews and nieces, the children of the sisters of my father his nephew and nieces, and they are all my cousins. For while the husbands of the sisters of my mother are still her husbands, and likewise the wives of the brothers of my father still his wives—legally, if not always in fact—the social proscription of sexual intercourse between brothers and sisters has now divided those relatives who were formerly regarded without distinction as brothers and sisters, into two classes. In one category are those who remain (more remote) brothers and sisters as before; in the other the children of the brother on one hand or the sister on the opposite, who can be brothers and sisters no longer. The latter have mutual parents no more, neither father nor mother nor both together. And for this reason the class of nephews and nieces, male and female cousins, here becomes necessary for the first time. Under the former family order this would have been absurd. The American system of kinship, which appears absolutely paradoxical in any family form founded on monogamy, is rationally explained and naturally confirmed in its most minute details by the Punaluan family. Wherever this system of kinship was in force, there the Punaluan family or at least a form akin to it must also have existed.
This family form, the existence of which in Hawaii was actually demonstrated, would have been transmitted probably by all Polynesia, if