It is evident that a commerce in women systematically tolerated by the state, as is the proxenetism of regulated prostitution, employs all means imaginable to attract and excite its clients. In this way prostitution becomes the high-school for all the refinements of sexual perversion. It not only offers special objects required by individuals tainted by heredity with various perversions, but it artificially develops perverse habits in the normal man. The manipulations of sadism or masochism are even utilized to revive a sexual appetite weakened by abuse. Individuals who have become impotent often try to excite themselves by observing the coitus of others. In fact a leaven of corruption and ignominy ferments on the dunghill of venal and artificial excitation of the sexual appetite. The apostles of Mammon and Bacchus, the former by interest, the latter by the aid of a narcosis which paralyzes the higher sentiments and reflection, work in concert to maintain this foul swamp. The same individuals very commonly combine the two apostleships and become themselves the victims of their false gods, after sacrificing hundreds of their fellows. To make matters more clear I will recapitulate as follows: (1). _We often meet with pederasty without a trace of inversion of the sexual appetite. It is also practiced on women by the psychopathic male. But the normal man hardly ever prefers it to normal coitus._ (2). _Compensatory masturbation is very common and ceases with the opportunity for normal coitus._ (3). _Sodomy is also often compensatory._ (4). _It is the same with assaults on children, which seldom depend on a hereditary disposition._ (5). _Lesbian love, a form of degeneracy, artificial excitation of the clitoris by the tongue or otherwise, may have quite a different origin than from sexual inversion or other perversions._ All these things take place chiefly in brothels or with prostitutes, in barracks, boarding-schools, convents, and other isolated places where men and women live alone and separated from the other sex. Sadism, masochism, fetichism and exhibitionism are much more rarely the result of habits, because their object and the images with which they are associated do not offer compensation for the normal excitation of the sexual appetite, or only do so insufficiently. I am here obliged to contradict Krafft-Ebing, who regards exhibitionism as the effect of the impotence of certain individuals depraved by excesses, or as the unconscious act of certain epileptics. No doubt the two conditions which he mentions may present themselves, but the exhibitionists I have observed have all been psychopaths whose perversion was primordial and hereditary, with the exception of some females in whom perversion originated in suggestion or alcoholism, which had at any rate aroused the disposition.