their child, it must belong body and soul either to one party or to the other. We may now go on to analyse this one-sided type of kinship-organization a little more fully. There are three elementary principles that combine to produce it. They are exogamy, lineage and totemism. A word must be said about each in turn. Exogamy presents no difficulty until you try to account for its origin. It simply means marrying-out, in contrast to endogamy, or marrying-in. Suppose there were a village composed entirely of McIntyres and McIntoshes, and suppose that fashion compelled every McIntyre to marry a McIntosh, and every McIntosh a McIntyre, whilst to marry an outsider, say a McBean, was bad form for McIntyres and McIntoshes alike; then the two clans would be exogamous in respect to each other, whereas the village as a whole would be endogamous. Lineage is the principle of reckoning descent along one or other of two lines--namely, the mother's line or the father's. The former method is termed matrilineal, the latter patrilineal. It sometimes, but by no means invariably, happens, when descent is counted matrilineally, that the wife stays with her people, and the husband has the status of a mere visitor and alien. In such a case the marriage is called matrilocal; otherwise it is patrilocal. Again, when the matrilocal type of marriage prevails, as likewise often when it does not, the wife and her people, rather than the father and his people, exercise supreme authority over the children. This is known as the matripotestal, as contrasted with the patripotestal, type of family. When the matrilineal, matrilocal and matripotestal conditions are found together, we have mother-right at its fullest and strongest. Where we get only two out of the three, or merely the first by itself, most authorities would still speak of mother-right; though it may be questioned how far the word mother-right, or the corresponding, now almost discarded, expression, "the matriarchate," can be safely used without further explanation, since it tends to imply a right (in the legal sense) and an authority, which in these circumstances is often no more than nominal.