I am not prepared to accept the doctrine of either as true, but only can see evidence that both may be disturbed or lost for a time by pressure upon, or section of, a part of the cerebellum, and that this organ perhaps tends to effect an equilibrium of the nervous forces between the cerebrum and cord, and also as a generator of nerve-force. We do know that coôrdination of muscular movements is interfered with by any structural changes in this organ; but it would seem that, if the sexual was so much depending upon the cerebellum for force, or there was such an intimate relation between these organs, muscular movement would be oftener impaired or disturbed by reflex irritation, owing to the frequency of impotence and other genital diseases, through the close relations supposed to exist between the genitalia and cerebellum. The coôrdination of muscles is seldom interfered with by sexual diseases directly, but only as a secondary issue, by first producing chronic impairment of the nutritive forces, and thereby effecting the changes in nerve-cells. The sensitive nervous organizations are of themselves predisposed to morbid changes, from too often repeated shocks of pleasure or grief; such persons are first to suffer mentally through shame, from having indulged in such vices, and secondly, from actual structural changes that have occurred. The vice, commenced at puberty or before, interferes greatly with the development of the brain, and only a feeble intellect is possible as a product of such feeble brain-structure. The mental powers often yield, as it were, when the genital organs possess the power to copulate _ad libitum_. This is not an uncommon occurrence. Lunatics frequently possess such genital vigor, when their lunacy has been produced by masturbation and other sexual debauch. Roberts Bartholow has, in his monograph, recorded a paragraph worthy of mention: “It is to be remarked that the mental phenomena of spermatorrhœa are not always in proportion to seminal losses. In the cerebral form, in addition to those lesions of the sexual spinal system, of the digestive apparatus and of the circulation, described under the genital form, there are certain disorders of the mind. That spermatorrhœa will produce, in one class of cases, mental disorders, and not in another, indicates either that some predisposition to these disorders existed, or that the habit of self-pollution was merely an expression of mental alienation. The lascivious images which pervade the minds of boys, possessed of the highly developed nervous organization of masturbators, are those of delusional insanity. In one case the spermatorrhœa is a symptom of mental disorder; in the other, the spermatorrhœa is an exciting cause――the predisposition already existing.”