A young man of twenty-two years of age, strong and healthy, qui magnum mulierum numerum habebat at his disposal and never showed any homosexual tendencies, one day contracted a very bad infection of gonorrhoea, which after a few days became complicated by orchitis and epididymitis and which took eighteen months to be cured. Since then he is afraid to go near a woman. It did not take very long before he made the acquaintance of a homosexual pathicus with whom he is now living in a bachelor apartment. He assured the author that, he will never touch a woman again, except he should get married to a healthy, respectable girl. Female homosexuality is not seldom caused by the fact that the young girl does not need to fear the opposition of her guardians when choosing a female friend. The companionship of a female friend does not arouse the suspicion of the natural guardians, and the girl is watched less by them. They would never allow their ward to sleep in one room with a man alone, but they suspect nothing if she sleeps in the same bed with a female friend. Thus indulgence with female friends do not offer so many obstacles and entail no consequences. Many a girl is hence induced to transfer her attentions to friends of her own sex. _Homosexuality out of lust._—Another cause for homosexual practices among men and women is lust and lechery. There are individuals whose only aim in life is the satisfaction of their sexual desires. All their activities aim at this end. They sacrifice everything to this instinct. After they have tasted all the varieties congressus normalis, sexual activity with the other sex becomes stale, and satiety ensues. They then feel the need for stronger excitements and stimulations of the diseased nerves and resort to paederastia and lesbianism. The following case will best illustrate this point: A man thirty years of age, healthy and strong, began se stuprare manu when fifteen years of age but soon gave up the practice on account of the following incident: The beautiful servant girl in the family one evening surprised him in his practices. “Ita concitata est aspectu actionis venereæ, ut se jaceret ad grabatum et incitavit puerum, ut coitum cum ea efficeret. Qua ex die puerum noctu in lectum secum quotidie deduxit, et ambo indulserunt excessibus sexualibus exquisitimis, e. g., fellatio, cunnilingus, mamillae suctus, coitus per anum, etc.” After a number of years the girl left the house, and he began to associate with venal women and continued the same practices with the learned priestesses of Venus. By the time he was thirty years old he had tasted all the salacious practices these women are able to teach. Thereupon he turned to homosexuality in the houses for that purpose. There he plays, as a rule, the active part.