Miss Erna, 42 years of age, writer, shows preeminent male features, behaves peculiarly like a male, smokes, drinks, is a preeminent champion of women’s rights. She claims to be innately homosexual, even as a child she assumed a male role, and was wilder than her brothers. She always passed for an uncontrollable tomboy. Had no intimation about her homosexual condition. Masturbated very early and already at the age of 15 she maintained clandestine relations with an army officer who had seduced her. But she claims that her experience was exclusively physical. She has experienced orgasm with men. At 19 years of age another army officer gave her a venereal disease. _Since that time she feels a tremendous dislike for all men._ At 22 years of age she conceived a romantic love for a woman friend. They kept up a relationship during which she maintained the male role. She even procured for herself an artificial phallus and wore male clothes in the house. It was like a genuine marriage. “I know only since then what love really means. Formerly I only felt a liking for men. It was merely a physical attraction. But for the past 20 years my love has been exclusively for women.” After the first “homosexual marriage,” which lasted only three years because her friend deserted her and married, she had numerous relations with other women. * * * * * Very convincing are the cases in which the homosexual outbreak occurs first after some powerful trauma! It is not always gonorrhea. Often various other experiences furnish the inciting moment as I can easily prove on the basis of my own observations. But first I must quote a case reported by _Krafft-Ebing_ which is illuminating on this score: Miss X., 22 years of age, is considered a beauty, men flock around her whenever she appears in society; she is decidedly of a sensuous nature, seems born to be an _Aspasia_, but rejects all advances. One of her admirers, however, a young scientist, she looks upon with some favor, becomes intimate with him, allows herself to be kissed by him, _but not like a loving woman_; and when the young man believes himself close to the consummation of his supreme desire she begs him with tears in her eyes to desist because she is utterly unable to yield to him, not on account of moral grounds so much as for deeper psychic reasons. In the course of the exchange of written confidences which followed that unsuccessful meeting between the two the homosexual character of her inclination was clearly revealed to her.