In consequence of Gall’s opinions, many authors, among whom we will mention Chauffard, Voisin, and Londe, have thought it necessary, in order to subdue too great a degree of amativeness, to make applications directly to the cerebellum. Some attempts have seemed to justify this view of the subject. Sainte Marie says, that a physician of Lyons has cured inveterate nocturnal pollutions, by applying ice to the occiput and nucha before going to bed. A man, thirty years old, had three or four seminal emissions every night, which Lallemand had tried in vain to cure, by cauterizing the ejaculatory canals. Gensoult applied leeches and ice to the nucha: the pollutions were arrested, as if by magic. Serres, who reports this case, adds, that, since the publication of his memoir on cerebellar apoplexy, he has seen two cases of apoplexy, where erections appeared during the paroxysms. Both were cured by applying leeches and emollient cataplasms to the nucha. Might not narcotics be applied, endermically, near the cerebellum, to subdue the onanistic satyriasis? Might not belladonna, opium, &c., introduced in this manner, be used with advantage? Might not, also, the hair of the head be kept short, especially behind, and rest on a pillow of hair, instead of feathers? Setons and blisters, also, should be applied to the neck, in onanists, only with the utmost care; and they should be removed as soon as they are considered indispensable. Besides the irritation caused near the cerebellum, the influence of the cantharides is to be guarded against. We have already stated, that there is a reciprocity of action between different organs: if there be one which exercises a marked influence on the other, the latter will in turn affect the former. This may be proved by the cerebellum, which sometimes becomes diseased after abuses of the genital organs, and sometimes communicates to these organs the over-excitement which is accidentally seated in it: the spinal marrow, also, confirms the fact. Willis, who, before Gall, had sought to localize in the nervous centres the faculty of reproduction, had designated the spinal marrow as the organ of this faculty. Numerous observations, and many experiments, have lately given some credit to this opinion. Segalas, who produced erections of the penis in Guinea pigs, by introducing a stylet into the cerebellum, caused ejaculations by pushing this instrument into the spinal column, near the lumbar region. Serres repeated this last experiment, and the result was similar: he therefore concluded that the lower part of the spinal marrow acts on the secretory and excreting seminal apparatus, as the cerebellum acts on the genital sense. We shall see, also, that this opinion is too positive, as the lesions of the medulla exert a marked action on erection of the penis and the venereal sense, besides the influence on the ejaculation attributed to it by Serres.