It often happens that diseases resist to an unaccountable extent all remedial agents: suspicion is excited and finally we find that the patient, an onanist before he was taken sick, has continued to abuse himself through his sickness: and again, the symptoms of the disease under treatment gradually disappear: but the strength does not return, nor does the patient become convalescent. Debility increases instead of diminishing: the patient becomes thinner and the fever continues: finally the sick person falls into a consumption and the fatal habit is at last discovered. In others the disease seems to be terminated, but is suddenly re-excited, the patient being too hasty to indulge in masturbation or coition. This happened to a man fifty years old, who was gouty, and much addicted to the pleasures of the table, and whose case is related by Hoffman. Having indulged in coition soon after he was convalescent from pleurisy, this man had a relapse which was much more dangerous than the original illness. The same author states a similar case, where the imprudence was followed by death. Scrofula, rickets, gout, and stone are says M. Marc, diseases, which on arriving at a certain point, are aggravated by coition. The same remark applies to all other maladies. M. Falret mentions a female affected with melancholy at the hospital Salpetrière, whose mental affection has several times been re-excited by onanism, after she was thought to be cured. Cutaneous diseases in particular may give an idea of the influence exercised by the act of venery on those maladies which are deeply situated. Alibert mentions the history of an herpetic disease which was always more intense after the patient had indulged in onanism: this unfortunate individual was then tormented by a severe itching. The irregularity and singularity of the symptoms of those sick people who indulge in onanism, are particularly remarkable. The nervous system evidently feels an influence in addition to that of the disease, or is disposed to be particularly affected by all those which occur. This fact, established by Tissot and Georget, should always be remembered by physicians. We may form an idea of the derangement caused by the act of venery in the progress and appearance of diseases by the severe symptoms which it produces in wounds and particularly those of the head. Tetanus, delirium, and other nervous symptoms have often been caused by it. Fabricius de Hilden states the case of a young man whose hand was amputated, and whose physician forbid having any intercourse with his wife, who was also informed of the danger. But when all the symptoms disappeared, and the cure was progressing rapidly, the patient feeling desires to which his wife could not respond, procured a seminal emission without coition; it was immediately followed by fever, delirium, convulsions and other symptoms, and in four days the patient died.