Facts of a similar character have induced several authors to attribute satyriasis and nymphomania exclusively to an innate or accidental state of the cerebellum. “The material condition of satyriasis,” says Voisin, “resides in the encephalon; and in all cases, the deranged manifestation of it depends on the nature and preponderating power of the cerebellum, or on those moral and intellectual causes which have favored the development of this organ--or, rather, on the external circumstances which at the moment of disease have brought it violently into action.” On the other hand, the localization of physical love in the cerebellum has been violently contested by excellent observers, particularly by Flourens and Bouillaud, who consider as the special function of this organ its presidence over locomotion. Bouillaud, particularly, has attempted to establish, by analyzing the observations of Gall and Serres, that they are not so conclusive as these authors asserted, and that they may be interpreted differently. Chauffard thinks that Gall has gone too far, and that his remark, that physical love and erections should not be attributed to the presence of the semen and the irritation which it causes, should be qualified by using the term _exclusively_. We also think, that, thus altered, Gall’s remark would be more just. The cerebellum has certainly a powerful action on salacity; but we shall see that each part of the genital apparatus exercises one equally great; and that, consequently, the organic principle of the state of rutting, and of venereal excesses, cannot be sought for solely in the encephalon.