us cast a veil over a subject so humiliating to the honour of humanity!" (p. 177). As the final result of this analysis, Moreau classifies sexual inversion with erotomania, nymphomania, satyriasis, bestiality, rape, profanation of corpses, &c., as the symptom of a grave lesion of the procreative sense. He seeks to save its victims from the prison by delivering them over to the asylum. His moral sentiments are so revolted that he does not even entertain the question whether their instincts are natural and healthy though abnormal. Lastly, he refuses to face the aspects of this psychological anomaly which are forced upon the student of ancient Hellas. He does not even take into account the fact, patent to experienced observers, that simple folk not unfrequently display no greater disgust for the abnormalities of sexual appetite than they do for its normal manifestations.[21] _Die krankhaften Erscheinungen des Geschlechtssinnes. B. Tarnowsky. Berlin, Hirschwald_, 1886. This is avowedly an attempt to distinguish the morbid kinds of sexual perversion from the merely vicious, and to enforce the necessity of treating the former not as criminal but as pathological. "The forensic physician discerns corruption, oversatiated sensuality, deep-rooted vice, perverse will, &c., where the clinical observer recognises with certainty a morbid condition of the patient marked by typical steps of development and termination. Where the one wishes to punish immorality, the other pleads for the necessity of methodical therapeutic treatment." The author is a Russian, whose practice in St. Petersburg has brought him into close professional relations with the male prostitutes and habitual pæderasts of that capital. He is able therefore to speak with authority, on the ground of a quite exceptional knowledge of the moral and physical disturbances connected with sodomy. I cannot but think that the very peculiarities of his experience have led him to form incomplete theories. He is too familiar with venal pathics, pædicators, and effeminates who prostitute their bodies in the grossest way, to be able to appreciate the subtler bearings of the problem. Tarnowsky makes two broad divisions of sexual inversion. The first kind is inborn, dependent upon hereditary taint and neuropathic diathesis. He distinguishes three sorts of inborn perversity. In the most marked of its forms it is chronic and persistent, appearing with the earliest dawn of puberty, unmodified by education, attaining to its maximum of intensity in manhood, manifesting, in fact, all the signs of ordinary sexual inclination. In a second form it is not chronic and persistent, but periodical. The patient is subject to occasional disturbances of the nervous centres, which express themselves in violent and irresistible attacks of the perverted instinct. The third form is epileptical.