I am convinced, after many years careful thought, that sexual vice and perversion could be greatly reduced if the young were instructed in the elements of physiology as they bear on this question. Personally, had I been thus enlightened much sin would have been avoided in my schoolboy days, and a perverted view of sexual matters would never have arisen in my mind. It took years to overcome the feeling that all such things were unclean and defiling. Eventually light came to me through reading a passage in a tractate on the Creed by Rufinus. He was defending the doctrine, of the Incarnation against the pagan objection that it was an unclean and disgusting idea that God should enter the world through the womb of the Blessed Virgin Mary, and he meets it by showing that God created the sexual organs, therefore the objection is invalid--otherwise God would not be clean or pure, having Himself designed them and their functions. This passage is slight in itself, but gave birth to a line of thought which has influenced me profoundly. I no longer regard sexual matters as disgusting and unholy, but as intensely sacred, being the outcome of the Divine Mind. Further, the Incarnation of the Saviour has not only sanctioned motherhood and all that is implied by it, but has eternally sanctified it as the means chosen for the manifestation of God to the world. I should not obtrude my theological conceptions, but for the fact that they have determined my life-history in that aspect. HISTORY IV.--When I was 9 years old a boy at the preparatory school, which I attended, showed me the act of masturbation, which he said he had practiced for a long time, and which he urged me to imitate, if I wished to become a father when I grew up, and married! Boy-like I believed him and tried, but the sensation obtained was not a pleasant one (I suppose that I was too rough with myself) and I desisted.