Somewhat similar may have been the origin of the attraction of blood in a case which has been reported to me of a youth of 17, the youngest of a large family who are all very strong and entirely normal. He is himself, however, delicate, overgrown, with a narrow chest, a small head, and babyish features, while mentally he is backward, with very defective memory and scant powers of assimilation. He is intensely nervous, peevish, and subject to fits of childish rage. He takes violent fancies to persons of his own sex. But he appears to have only one way of obtaining sexual excitement and gratification. It is his custom to get into a hot bath and there to produce erection and emission, not by masturbation, but by thinking of flowing blood. He does not associate himself with the causation of this imaginary flow of blood; he is merely the passive but pleased spectator. He is aware of his peculiarity and endeavors to shake it off, but his efforts to obtain normal pleasure by thinking of a girl are vain. I may here narrate a case which has been communicated to me of algolagnia in a woman, combined with sexual hyperesthesia. R.D., aged 25, married, and of good social position; she is a small and dark woman, restless and alert in manner. She has one child. She has practised masturbation from an early age--ever since she can remember--by the method of external friction and pressure. From the age of 17 she was able (and is still) to produce the orgasm almost without effort, by calling up the image of any man who had struck her fancy. She has often done so while seated talking to such a man, even when he is almost a stranger; in doing it, she says, a tightening of the muscles of the thighs and the slightest movement are sufficient. Ugly men (if not deformed), as well as men with the reputation of being _roués_, greatly excite her sexually, more especially if of good social position, though this is not essential. At the age of 18 she became hysterical, probably, she herself believes, in consequence of a great increase at that time of indulgence in masturbation. The doctors, apparently suspecting her habits, urged her parents to get her married early. She married, at the age of 20, a man about twice her own age.