both of the girl herself and of all with whom she comes in contact. To repress this force within the limits necessary for the safety of all concerned is the object of the taboos in question. The same explanation applies to the observance of the same rules by divine kings and priests. The uncleanliness, as it is called, of girls at puberty and the sanctity of holy men do not, to the primitive mind, differ from each other. They are only different manifestations of the same supernatural energy, which, like energy in general, is in itself neither good nor bad, but becomes beneficent or malignant according to its application."[363] More recently this view of the matter has been further extended by the distinguished French sociologist, Durkheim. Investigating the origins of the prohibition of incest, and arguing that it proceeds from the custom of exogamy (or marriage outside the clan), and that this rests on certain ideas about blood, which, again, are traceable to totemism,--a theory which we need not here discuss,--Durkheim is brought face to face with the group of conceptions that now concern us. He insists on the extreme ambiguity found in primitive culture concerning the notion of the divine, and the close connection between aversion and veneration, and points out that it is not only at puberty and each recurrence of the menstrual epoch that women have aroused these emotions, but also at childbirth. "A sentiment of religious horror," he continues, "which can reach such a degree of intensity, which can be called forth by so many circumstances, and reappears regularly every month to last for a week at least, cannot fail to extend its influence beyond the periods to which it was originally confined, and to affect the whole course of life. A being who must be secluded or avoided for weeks, months, or years preserves something of the characteristics to which the isolation was due, even outside those special periods. And, in fact, in these communities, the separation of the sexes is not merely intermittent; it has become chronic. The two elements of the population live separately." Durkheim proceeds to argue that the origin of the occult powers attributed to the feminine organism is to be found in primitive ideas concerning blood. Not only menstrual blood but any kind of blood is the object of such feelings among savage and barbarous peoples. All sorts of precautions must be observed with regard to blood; in it resides a divine principle, or as Romans, Jews, and Arabs believed, life itself. The prohibition to drink wine, the blood of the grape, found among some peoples, is traced to its resemblance to blood, and to its sacrificial employment (as among the ancient Arabians and still in the Christian sacrament) as a substitute for drinking blood. Throughout, blood is generally taboo, and it taboos everything that comes in contact with it. Now woman is chronically "the theatre of bloody manifestations," and