In connection with such pure cases of anæsthesia there should be considered other cases in which the mental side of the vita sexualis is a blank leaf in the life of the individual, but where elementary sexual sensations manifest themselves at least in masturbation (comp. the transitional Case 6). According to Magnan’s ingenious classification, which, however, is not strictly correct and somewhat too dogmatic, in such cases the sexual life is so limited as to be designated spinal. Possibly in some such cases there exists virtually a mental side of the vita sexualis, but it is very weak, and undermined by masturbation before it attains development. These represent the transitional cases from the congenital to the acquired (psychical) anæsthesia sexualis. This danger threatens many masturbators of vicious constitution. It is psychologically interesting that when the sexual element is early vitiated, then an ethical defect is manifested. The two following cases, previously published by me in the _Archiv für Psychiatrie_, vii, are given here as illustrations worthy of consideration:— Case 8. F. J., aged 19, student; mother was nervous, sister epileptic. At the age of four, acute brain affection, lasting two weeks. As a child he was not affectionate, and was cold toward his parents; as a student he was peculiar, retiring, preoccupied with self, and given to much reading. Well endowed mentally. Masturbation from fifteenth year. Eccentric after puberty, with continual alternation between religious enthusiasm and materialism,—now studying theology, now natural sciences. At the university his fellow-students took him for a fool. He read Jean Paul almost exclusively, and wasted his time. Absolute absence of sexual feeling toward the opposite sex. Once he indulged in intercourse, experienced no sexual feeling in the act, found coitus absurd, and did not repeat it. Without any emotional cause whatever, he often had a thought of suicide. He made it the subject of a philosophical dissertation, in which he contended that it was, like masturbation, a justifiable act. After repeated experiments, which he made on himself with various poisons, he attempted suicide with fifty-seven grains of opium; but he was saved, and sent to an asylum.