the ancient Egyptians, whose art characterized the child, as well as the god Horus, with the finger in his month. Abraham only recently published material concerning the traces which this primitive oral phase has left upon the sexual life of later years. I can surmise that these details about sexual organization have burdened your mind more than they have informed you. Perhaps I have again gone into detail too much. But be patient; what you have heard will become more valuable through the uses to which it is later put. Keep well in mind the impression that sexual life, as we call it, the function, of the libido, does not make its appearance as a completed whole, nor does it develop in its own image, but goes through a series of successive phases which are not similar to each other. In fact, it is a developmental sequence, like that from the grub to the butterfly. The turning point of the development is the subordination of all sexual partial-instincts to the primacy of the genitals, and thereby the subjection of sexuality to the function of reproduction. Originally it is a diffused sexual life, one which consists of independent activities of single partial instincts which strive towards organic gratification. This anarchy is modified by approaches to pre-genital organization, first of all the sadistico-anal phase, prior to this the oral phase, which is perhaps the most primitive. Added to this there are the various processes, as yet not well known, which carry over one organization level to the later and more advanced phase. The significance, for the understanding of the neuroses, of the long evolutionary path of the libido which carries it over so many grades we shall discuss on another occasion.