Presently we shall be introduced to a theory (that of Ulrichs) which is based upon a somewhat grotesque and metaphysical conception of nature, and which dispenses with the hypothesis of hereditary disease. I am not sure whether this theory, unsound as it may seem to medical specialists, does not square better with ascertained facts than that of inherited disorder in the nervous centres. However that may be, the physicians, as represented by Krafft-Ebing, absolve all subjects of inverted sexuality from crime. They represent them to us as the subjects of ancestral malady. And this alters their position face to face with vulgar error, theological rancour, and the stringent indifference of legislators. A strong claim has been advanced for their treatment henceforth, not as delinquents, but as subjects of congenital depravity in the brain centres, over which they have no adequate control. The fourth medical author, with whom we are about to be occupied, includes sexual inversion in his general survey of human crime, and connects it less with anomalies of the nervous centres than with atavistic reversion to the state of nature and savagery. In the end, it will be seen, he accepts a concordat with the hypothesis of "moral insanity." _Cesare Lombroso._ "_Der Verbrecher in Anthropologischer, Aerztlicher und Juristischer Beziehung._" This famous book, which has contributed no little to a revolution of opinion regarding crime and its punishment in Italy, contains a searching inquiry into the psychological nature, physical peculiarities, habits, and previous history of criminals.[36] It is, in fact, a study of the criminal temperament. Lombroso deals in the main, as is natural, with murder, theft, rape, cruelty, and their allied species. But he includes sexual inversion in the category of crimes, and regards the abnormal appetites as signs of that morbid condition into which he eventually revolves the criminal impulse. Wishing to base his doctrine on a sound foundation, Lombroso begins with what may be termed the embryology of crime. He finds unnatural vices frequent among horses, donkeys, cattle, insects, fowls, dogs, ants. The phenomenon, he says, is usually observable in cases where the male animal has been excluded from intercourse with females. Having established his general position that what we call crimes of violence, robbery, murder, cruelty, blood-thirst, cannibalism, unnatural lust, and so forth, exist among the brutes--in fact, that most of these crimes form the rule and not the exception in their lives--he passes on to the consideration of the savage man. In following his analysis, I shall confine myself to what he says about abnormal sexual passion.