as they know the necessity of a mechanical opening of the vagina, so they do not know the generative power of the male discharge. It was in discussing the mythological tales of mankind's beginnings on earth (see below, ch. xiii, sec. 5) and fantastic legends of distant lands, to the account of which I shall now proceed, that I was made aware of this subtle yet all-important distinction between mechanical dilation and physiological fertilization; and was thus enabled to place native belief regarding procreation in its proper perspective.
According to native tradition, mankind originated from underground, whence a couple, a brother and a sister, emerged at different specified places. According to certain legends, only women appeared at first. Some of my commentators insisted upon this version: "You see, we are so many on the earth because many women came first. Had there been many men, we would be few." Now, whether accompanied by her brother or not, the primeval woman is always imagined to bear children without the intervention of a husband or of any other male partner; but not without the vagina being opened by some means. In some of the traditions this is mentioned explicitly. Thus on the island of Vakuta there is a myth which describes how an ancestress of one of the sub-clans exposed her body to falling rain, and thus mechanically lost her virginity. In the most important Trobriand myth, a woman, called Mitigis or Bolutukwa, mother of the legendary hero Tudava, lives quite alone in a grotto on the seashore. One day she falls asleep in her rocky dwelling, reclining under a dripping stalactite. The drops of water pierce
