seduction, and the seducer also may be of either sex. In cases of an altogether exceptional character, danger threatens in this respect from a child's own brothers or sisters. I alluded to this matter in an earlier chapter, on page 71. Among cases which have come under my notice, I may mention one in which a boy began to carry out all kinds of perverse sexual acts with his sister, who was about eight years younger than himself, and continued to do this when he had attained the age of twenty-nine years. Forel[100] sees, rightly, as I believe, especial danger in the leading of others astray by young homosexuals, alike in boys' and in girls' boarding-schools. In some of these cases the seducer's act is merely a manifestation of the early undifferentiated state of the sexual impulse, but in others it is an early sign of a real homosexual development. I append here certain cases from the literature of the subject showing the great dangers that proceed from such premature sexual development. One case reported by Forel[101] was that of a girl nine years of age. "This girl would stimulate sexually all boys of her own age or somewhat younger whom she could induce to allow her to do so. She did this so secretly, that by mishandling the genital organs of her two little brothers, both younger than herself, she slowly brought one to his death, and in the other caused serious injury to the bladder and urethra. With an older boy, she was accustomed to have actual sexual intercourse in the woods. I could not, in this case, gain any definite information regarding hereditary taint. Such persons commonly become criminals in later life, or at least indulge in the most shameless masturbation or give themselves up to prostitution."