“And yet experience has taught me that I am always potent with girls, and that, too, without trouble and without the help of imagining masculine genitals. In one case, however, I did not attain ejaculation because the woman—it was in a brothel—was devoid of every charm. I cannot avoid the thought and severe self-accusation that, to a certain extent, my contrary sexuality is the result of excessive onanism; and this especially depresses me, because I am compelled to acknowledge that I scarcely feel strong enough to overcome this vice by the force of my own will. “As a result of my relations with my fellow-student and school-mate for years, mentioned in this communication,—which, however, began while we were at the University, and after we had been friends for seven years,—the impulse to unnatural satisfaction of libido has grown much stronger. I trust you will permit the description of an incident which occupied me for months:— “In the summer of 1882, I made the acquaintance of a companion six years younger than myself, who, with several others, had been introduced to me and my acquaintances. I very soon felt a deep interest in this handsome man, who was unusually well proportioned, slim, and full of health. After a few weeks of association, this feeling became friendship, and at last passionate love, with feelings of the most intense jealousy. I very soon noticed that, in this, sexual excitation was also very marked; and, notwithstanding my determination, aside from all others, to keep myself in check in relation to this man, whom I respected so highly for his superior character, one night, after free indulgence in beer, as we were enjoying a bottle of champagne in my room and drinking to good, true, and lasting friendship, I yielded to the irresistible impulse to embrace him, etc.