While upon the subject of morality, it may be well to glance at the aboriginal customs concerning divorce. As always, any inclusive statement must be prefaced by the warning that generalization is impossible of application to all the nations of North America; only a few very broad rules can be laid down, and these are tried by many exceptions. It may be stated as one of these rules that divorce was general among the Amerinds. As is usually the case where polygamy prevails, divorce was almost invariably at the discretion of the husband; but this rule knew some remarkable exceptions, as among the Pueblo Indians, where, because of the status of the husband as the perpetual guest of his wife, divorce was chiefly in the discretion of the women. It is, however, safe to lay down the general rule that divorce was at the discretion of the husband and rarely needed more than the expression of his wish to become effective and legal. This facility of divorce, of course, made for immorality as at present understood, since it created of marriage little more than a state of concubinage, where the concubine could be cast off at will and made over to another master, so that the marriage relation lacked the continuity which is its most essential feature; but, as a matter of fact, the practice of divorce was uncommon among most of the Amerind tribes. Whether this was because of public sentiment overriding the customary law, as is so often the case among people where law is entirely of custom and not of legislation, or whether the very lack of romantic affection in most marriages among the Indians acted as a safeguard against satiety and disgust, or whether there were other effective but unconjecturable reasons, cannot be known; but the fact remains that divorce, though easy of accomplishment, was of rare practice among the American Indians as a race.