Even among the rudest Indian tribes a regular union between man and wife was universal, although not attended with ceremonials. The marriage contract is a matter of purchase. The man buys his wife of her parents; not with money, for its value is unknown, but with some useful and precious article, such as a robe of bear or other handsome skin, a horse, a rifle, powder and shot. When the Indian has made the bargain with his wife's parents, he takes her home to his caban, and from that time she becomes his slave. There are several singular modes of courtship among some of the tribes, but generally much reserve and consideration are exhibited.[272] In many respects, however, the morals and manners of the Indians are such as might be expected in communities where the precepts of Christianity are unknown, and where even the artificial light of civilization is wanting. There are occasionally instances of a divorce being resorted to from mere caprice; but, usually, the marriage tie is regarded as a perpetual covenant. As the wife toils incessantly, and procures a great part of the subsistence, she is considered too valuable a servant to be lightly lost. Among the chiefs of the tribes to the west and south, polygamy is general, and the number of these wife-servants constitute the principal wealth; but among the northern nations this plurality is very rarely possessed. The Indian is seldom seen to bestow the slightest mark of tenderness upon his wife or children: he, however, exerts himself to the utmost for their welfare, and will sacrifice his life to avenge their wrongs. His indomitable pride prompts him to assume an apparent apathy, and to control every emotion of affection, suffering, or sorrow.