The Aborigine secures a wife in one of the following three ways: by the distribution of brides on the principle summarized above, or by inheriting a wife of one of his deceased group brothers or, finally, by abduction. The first of these is, of course, the commonest. It proceeds in this fashion. The mother of a small girl decides that she shall be given to a candidate who, according to the pattern of group relationships, has qualified as a son-in-law to the girl's mother. From this moment of decision, even though she is still only a child, she is looked upon as the man's fiancée, until, at the age of twelve or fourteen, she is finally transferred to the husband's keeping. This practice has certain complicated variants. Young newly-married girls can arrange beforehand that their own daughters, when they appear, shall eventually marry a certain man within the group who is entitled to the child on the basis of the relationships I have described. A man may thus find himself in the odd situation of not knowing how many wives he will finally get. Moreover, as the man gets older and gains increasing esteem in the group he is usually given more wives by general consent. So that it is, therefore, quite usual for a man of fifty or sixty to find himself with a wife of fourteen or fifteen as well as his older wives.
It might be inferred, from this practice of polygamy, that there are more women than men among the Aborigines. So far as is known there is little difference between the number of boys and girls born, and polygamy is made possible by the fact that the men seldom marry before they are twenty-five, while the women marry as early as twelve. In considering these matters we should remember that the Christian practice of monogamy, itself relatively new in history, was determined very largely by economic and not religious considerations. Polygamy among the Aborigines, as among other primitive peoples, is the result of the environmental condition in which they live. A woman nursing a small child would find it difficult to collect food in the harsh nomadic conditions of desert life, but if, on the other hand, there are several wives living together, one of them can look after all the children, while the others go out in search of food. Again, a younger wife can look after her husband when he and his earlier wives are too old to find food for themselves. There are, also, manifest disadvantages in this polygamous practice. Many young men of marriageable age cannot find wives because the girls in their group have already been assigned to older men. Youth is naturally drawn to youth, and because of this obstacle many unlawful relationships develop, not to mention outright theft and abduction of wives. I witnessed numerous quarrels and fights because of this. Some of the men are apt to neglect, and even turn out, their old wives in favour of young and fresh ones. In this case the old wives are looked after by their married daughters, but they eke out a very miserable existence. As a rule the wives seem to live in tolerable harmony, but it does sometimes happen that the older, neglected wives get jealous of the younger ones and this, of course, leads to trouble.