Among the Ba-Pedi and Ba-Thonga tribes of South Africa, when the site of a new village has been chosen and the houses are building, all the married people are forbidden to have conjugal relations with each other. If it were discovered that any couple had broken this rule, the work of building would immediately be stopped, and another site chosen for the village. For they think that a breach of chastity would spoil the village which was growing up, that the chief would grow lean and perhaps die, and that the guilty woman would never bear another child. Among the Chams of Cochin-China, when a dam is made or repaired on a river for the sake of irrigation, the chief who offers the traditional sacrifices and implores the protection of the deities on the work has to stay all the time in a wretched hovel of straw, taking no part in the labour, and observing the strictest continence; for the people believe that a breach of his chastity would entail a breach of the dam. Here, it is plain, there can be no idea of maintaining the mere bodily vigour of the chief for the accomplishment of a task in which he does not even bear a hand. If the taboos or abstinences observed by hunters and fishermen before and during the chase are dictated, as we have seen reason to believe, by superstitious motives, and chiefly by a dread of offending or frightening the spirits of the creatures whom it is proposed to kill, we may expect that the restraints imposed after the slaughter has been perpetrated will be at least as stringent, the slayer and his friends having now the added fear of the angry ghosts of his victims before their eyes. Whereas on the hypothesis that the abstinences in question, including those from food, drink, and sleep, are merely salutary precautions for maintaining the men in health and strength to do their work, it is obvious that the observance of these abstinences or taboos after the work is done, that is, when the game is killed and the fish caught, must be wholly superfluous, absurd, and inexplicable. But as I shall now show, these taboos often continue to be enforced or even increased in stringency after the death of the animals, in other words, after the hunter or fisher has accomplished his object by making his bag or landing his fish. The rationalistic theory of them therefore breaks down entirely; the hypothesis of superstition is clearly the only one open to us.