which deals with the rule of descent by which membership of natal groups is determined.

Turning now to kinship organisations, we find that the most widely distributed type is the totem kin, in fact, if we except the Hottentots and a few other peoples among whom no trace of it is found, it is difficult to say where totemism has not at one time or another prevailed. It is found as a living cult to-day among the greater part of the aborigines of North and South America, in Australia, and among some of the Bantu populations of the southern half of Africa. In more or less recognisable forms it is found in other parts of Africa, New Guinea, India, and other parts of the world. In the ancient world its existence has been maintained for Rome (clan Valeria etc.), Greece, and Egypt, but the absence of information as to details of the social structure renders these theories uncertain.

Aberrant cases apart, totemism is understood to involve (1) the existence of a body of persons claiming kinship, who (2) stand in a certain relation to some object, usually an animal, and (3) do not marry within the kin.

Passing over the classes, which are peculiar to Australia and will be fully dealt with below, we come to a more comprehensive form of kinship organisation in the phratries. These are a grouping of the community in two or more exogamous divisions, between which the totem kins, where they exist, are distributed. The essential feature of a phratry is that it is exogamous; its members cannot ordinarily marry within it, and, where there are more than two phratries, there may exist rules limiting their choice to certain phratries.4

This dual or other grouping of the kins is widely found in North America, the number of phratries ranging from two among the Tlinkits, Cayugas, Choctaws, and others, to ten among the Moquis of Arizona. As in Australia, the totem kins bearing the same eponymous animal as the phratry are usually, e.g. among the Tlinkits, found in the phratry in question. Exceptions to this rule are found among the Haida, where both eagle and raven are in the eagle phratry.

The Mohegan and Kutchin phratries call for special notice. The kins of the former are arranged in three groups: wolf, turtle, and turkey; and the first phratry includes quadrupeds, the second turtles of various kinds and the yellow eel, and the third birds. We find a parallel to these phratries in the groups of the Kutchin, but in the latter case our lack of knowledge of the tribe precludes us from saying whether totem kins exist among them, and, if so, how far the grouping is systematic; the Kutchin groups, according to one authority, are known by the generic names of birds, beasts, and fish. As a rule, however, no classification of kins is found, nor are the phratry names specially significant.

Dual grouping of the kins is also found in New Guinea, the Torres Straits Islands, and possibly among the ancient Arabs5; but evidence in the latter case has not been systematically dealt with.

Other peoples have a similar dichotomous organisation; but it is either not based on the totem kins or they have fallen into the background.

In various parts of Melanesia we find the people divided into two groups, each associated with a single totem or mythological personage, and sexual intercourse, whether marital or otherwise, is strictly forbidden between those of the same phratry6. In India the Todas have a similar organisation7, and the Wanika in East Africa8.

Customs of residence and descent affect the distribution of the phratries within the tribe, no less than the composition of the local group. With patrilineal descent they tend to occupy the tribal territory in such a way that each phratry becomes a local group. With the disappearance of phratry names this would be transformed into a local exogamous group, which is, however, indistinguishable from the local group of the same nature which is the result of the development of a totem kin under similar conditions.

As a rule kinship organisations descend in a given tribe either in the male line or in the female. Among the Ova-Herero, however, and other Bantu tribes, there are two kinds of organisation, one—the eanda—descending in female line and regulative of marriage, is clearly the totem kin; property remains in the eanda, and consequently descends to the sister's son. The other—the oruzo—descends in the male line; it is concerned with chieftainship and priesthood, which remain in the same oruzo, and the heir is the brother's son.9

This dual rule of descent brings us face to face with the question of how membership of kinship groups is determined.