Do not these facts show that the spinal marrow has a marked influence on the genital organs. We have already mentioned the opinion of Sainte Marie, who regards involuntary pollutions as sometimes the cause and sometimes the result of affections of the spinal marrow. May not an original or accidental state of this organ be, in some subjects, the indirect cause of venereal excesses? Remark the influence of a recumbent position, in producing voluptuous dreams and emissions of semen. Does not this singular effect depend on the heat of the spinal marrow caused by this position? This is possible, particularly if you consider the advantages derived in involuntary pollution, priapism, and satyriasis, from douches of cold water along the vertebral column, particularly on the lumbar and sacral regions, and also from the application of ice to these parts. Sainte Marie has sometimes arrested the spasm of the genital organs by frictions on the sacrum with bladders full of ice. We think, then, there are cases where these remedies may be used successfully to combat the habit of masturbation. Narcotic frictions and endermic applications may be made along the vertebral column, as we have said, when speaking of the cerebellum. In vigorous patients, leeches and cups may be applied to the loins. We will not allude here to the remedy recommended by many old authors, of a sheet of lead to the kidneys, for this cannot produce the refrigerant effect expected from it. The organic conditions of venereal desire are confined neither to the cerebellum nor spinal marrow: they may exist, also, in all parts of the genital system, as we shall demonstrate. A considerable part of this system is formed of a tissue termed the _erectile_, on account of its power of swelling, hardening, and becoming erected. It constitutes the whole of the cavernous bodies--the glans, which is the loose extremity of these bodies--the spongy part of the urethra--the clitoris--and a considerable portion of the vulva and vagina. The part taken by this tissue in the work of generation, would indicate that it is affected in amatory desires, and that its state must exercise some influence upon them; which is demonstrated by the facts we shall mention.