Besides the intellectual and moral effects which we have mentioned, onanism often produces a very marked debility of the mental faculties, and particularly of the memory. Young men, who previously showed considerable vivacity of mind and aptitude for study, become, after being addicted to this habit, stupid, and incapable of applying themselves: it is evident, that this transitory state which immediately succeeds the act of venery, becomes continued when this act is frequently repeated, because time is not allowed for the effects of it to pass off. This debility of the intellectual faculties must not always be considered as irremediable: in fact, these individuals sometimes regain their original acuteness, when the habit which had enfeebled them is discontinued, before the deterioration is of long standing. We might adduce instances of this return. The most remarkable, assuredly, is that of an idiot girl, who was restored to reason by amputation of the clitoris--an operation performed by Dr. Graefe, of Berlin. In a future page, we shall give this interesting case in full. Unfortunately, the simple cessation of onanism is not always sufficient to efface its effects completely; and many individuals preserve, during their whole existence, a certain feebleness of mind, which arises from the excesses of their youth. The debility of the intellectual faculties does not always stop at the point indicated: it may extend almost to idiocy--to the most complete stupidity. Most generally, then, the brain, or its appendages, are deeply injured, which is indicated by different symptoms, as loss of sight, hearing, fits, paralysis, &c. This was the case with an individual, whose case is stated by Serrurier, and who became, through onanism, perfectly imbecile. This is true, too, of an idiot, who was under the charge of Pinel, in the infirmary of Bicêtre. He was a sculptor, who had previously been exhausted by intemperance and venery. He remained almost motionless and quiet, or at intervals indulged in a foolish laugh. His face was destitute of expression, and he had no remembrance of his former state. His appetite was always good; and, even at the sight of food, his jaws began to move. He constantly remained in a recumbent posture; and, finally, became affected with hectic fever, which terminated fatally.