A case recorded by Schrenck-Notzing very well represents both the nature of the impulse felt by the exhibitionist and the way in which it may originate. It is the case of a business man of 49, of neurotic heredity, an affectionate husband and father of a family, who, to his own grief and shame, is compelled from time to time to exhibit his sexual organs to women in the street. As a boy of 10 a girl of 12 tried to induce him to coitus; both had their sexual parts exposed. From that time sexual contacts, as of his own naked nates against those of a girl, became attractive, as well as games in which the boys and girls in turn marched before each other with their sexual parts exposed, and also imitation of the copulation of animals. Coitus was first practiced about the age of 20, but sight and touch of the woman's sexual parts were always necessary to produce sexual excitement. It was also necessary--and this consideration is highly important as regards the development of the tendency to exhibition--that the woman should be excited by the sight of his organs. Even when he saw or touched a woman's parts orgasm often occurred. It was the naked sexual organs in an otherwise clothed body which chiefly excited him. He was not possessed of a high degree of potency. Girls between the ages of 10 and 17 chiefly excited him, and especially if he felt that they were quite ignorant of sexual matters. His self-exhibition was a sort of psychic defloration, and it was accompanied by the idea that other people felt as he did about the sexual effects of the naked organs, that he was shocking but at the same time sexually exciting a young girl. He was thus gratifying himself through the belief that he was causing sexual gratification to an innocent girl. This man was convicted several times, and was finally declared to be suffering from impulsive insanity. (Schrenck-Notzing, _Kriminal-psychologische und Psycho-pathologische Studien_, 1902, pp. 50-57.) In another case of Schrenck-Notzing's, an actor and portrait painter, aged 31, in youth masturbated and was fond of contemplating the images of the sexual organs of both sexes, finding little pleasure in coitus. At the age of 24, at a bathing establishment, he happened to occupy a compartment next to that occupied by a lady, and when naked he became aware that his neighbor was watching him through a chink in the partition. This caused him powerful excitement and he was obliged to masturbate. Ever since he has had an impulse to exhibit his organs and to masturbate in the presence of women. He believes that the sight of his organs excites the woman (Ib., pp. 57-68). The presence of masturbation in this case renders it untypical as a case of exhibitionism. Moll at one time went so far as to assert that