In the second place, we may remark that the disorders of sexual life only rarely belong to acute affections which the physician can treat with pharmaceutical or other common remedies. They almost exclusively originate in the mental constitution, _i.e._, in the hereditary dispositions of the brain of the individual. But the pathology of mental or cerebral conditions offers an extremely vast field, capable of so much extension that no definite limit can be fixed between the normal state and morbid states, which are themselves connected by numerous transitions. A great number of acts due to mental conditions which the public and even learned theologians, jurists and physicians not initiated in psychiatry, consider as criminal, sinful, or infamous, are only the product of pathological aberrations due to hereditary dispositions. I was recently consulted by a patient of this kind, otherwise possessed of noble sentiments, who told me that a physician in Germany to whom he related his troubles, turned on him furiously and said, "These things are filthy; you are a pig; hold your tongue and get away from here!" As a matter of fact this unfortunate patient was sustaining a heroic struggle against his perverted pathological sexual appetites. Knowing little or nothing of these matters human society, with few exceptions, is of the same opinion as the ignorant doctor mentioned above. For this reason I think it necessary at least to give an outline of phenomena which, although very repulsive in themselves, throw much light on the sexual question. PATHOLOGY OF THE SEXUAL ORGANS Every deformity, disease or operation which destroys the sexual glands in the child, or prevents them from developing, gives rise to the phenomena which we have described when speaking of castration. This is the case, for instance, with cryptorchidism in which the testicles remain in the inguinal canal and become atrophied, instead of descending into the scrotum. The following case is an example, and is interesting in other respects: A young man was affected with imbecility and congenital cryptorchidism with atrophy of the testicles. A eunuch from birth, he developed no sexual appetite and no correlative masculine character. To make a man of him, his too eager aunts married him to a strong girl, who was anything but innocent. She attempted by all kinds of manipulations to cure the sexual blindness of her husband; but this was a waste of labor, as the unhappy wretch only regarded the performance as disgusting and filthy. He was violently excited and became somnambulistic.