Chevalier says that the kind of meretrices who exploit women may be met with in all streets and boulevards of Paris, in the theatres and at balls, at the races and exhibitions of every kind. The little girls, between the ages of ten and fifteen, who may be seen selling flowers in the restaurants and cafés of Paris, are also, to a large extent, in the service of lesbianism. All these males and females who offer their bodies to homosexual inverts for hire, are seldom inverts themselves. With them it is only a vice or a perversity. _Homosexual perversion._—The perversion of homosexuality has, as a rule, the force of a congenital phenomenon and is characterized by precocity. In normal individuals the sexual instinct, except induced by seduction, does not manifest itself before puberty. The sexual life of the individuals afflicted with homosexual perversion, on the other hand, appears abnormally early in life. The impulse appears at the tender age of five to eight years, and ab initio in a perverted form, without having been brought about from the outside by bad examples or other influences. The child shows its anomaly in its tastes, sentiments, and occupations. The boy avoids the company of other boys. He shuns their games and plays. He is found playing with dolls, ribbons, miniature housekeeping, etc., in company with girls. He is more particular about his dress, in fact, he loves to be dressed like a girl as long as possible. He likes to occupy himself with girls’ work, such as knitting, sewing or crochet-work. The homosexual girl is found in the haunts of boys and competes with them in their games. She neglects her dress and assumes and affects boyish manners. She is in pursuit of boys' sports. She plays with horses, balls and arms. She gives manifestations of courage and bravado, is noisy and loves vagabondage.