=Sexual Appetite for Children. (Pederosis.)=--It may be questioned whether this is a special category, for many sexual assaults committed on children are simply the effect of senile dementia, or abuse of children to satisfy an otherwise normal sexual appetite. I have, however, observed cases where children were so specially, or even exclusively, the object of the sexual appetite, that I cannot doubt the existence of a special hereditary perversion in this direction. No doubt, most of those who abuse children are also capable of coitus with women, or else they are inverts, sadists, etc.; but with many of them sexual passion for children is so marked from their youth upward, that it shows a special hereditary disposition. For this pathological disposition, thus defined, I propose the term _pederosis_; that of _pederasty_ applying to degeneracy between man and man, whatever causes lead to it. Krafft-Ebing, who does not believe in the existence of a hereditary pederosis, gives the name _erotic pedophilia_ to the abuse of children by depraved persons. The following are cases of exclusive and hereditary pederosis: A talented artist, possessing high moral sentiments, was affected from his youth with a sexual appetite exclusively directed toward little girls of five or six years. At the age of twelve they ceased to attract him. He was quite indifferent to adults of both sexes, and never accomplished coitus. _Having recognized in good time the anomaly of his appetite, he succeeded in mastering it all his life, and through education on the subject as well as a general physical development, he neutralized these morbid desires, particularly through the training of his mind to cleaner and more wholesome topics. A great help in this type of condition is work therapy. His moral sentiments and principles were always strong enough to prevent him going any further, and he eventually obtained relief. But this condition gave rise to increasing nervous irritation and melancholic depression._ In another man, the sexual appetite, also perverted since its origin, was directed only toward boys of twelve or sixteen. At one time girls of the same age excited him, while he was quite indifferent toward adult women and men. In rare cases the sexual appetite of certain women is directed toward little boys.