A certain predisposition to uterine cardiopathy exists in many individuals and in many families. This predisposition may be manifested in this way, that in women who at the time of the menarche have suffered from cardiac disorder, similar cardiac disorder is likely to recur at the time of the menopause, the symptoms of the recurrent attack being in most cases identical with those that occurred during the menarche. In the well-to-do and cultured circles of society, uterine cardiopathy is far more frequently encountered than among the working classes. Both unusually early and unusually late commencement of menstruation tend to favor the occurrence of uterine cardiopathy. The most valuable therapeutic measures that we can employ to combat these disorders are suitable dietetic and hygienic regulations, in association with favorable mental influences. Diseases of the female reproductive organs, including simple functional disturbances, are very frequently accompanied—far more frequently than has hitherto been supposed—by cardiac disorders. But whereas in some cases these cardiac disorders are directly dependent upon the disease of the genital organs; in other cases no such etiological relationship can be shown to exist, and the association must, therefore, be regarded as fortuitous. In cases of the former kind, the dependence of the cardiac disorder upon the disease of the genital organs is very variable in its nature. Reflex manifestations on the part of the nervous system may be aroused by pathological changes in the genital organs, in a manner similar to that discussed in other parts of this work in regard to the cardiac troubles that are liable to occur during the menarche and the menopause; such cardiac disorders are indeed excited especially by changes in the ovaries, by disturbances of menstrual activity, by suppression of the menses—as manifestations, that is to say, of the menstrual reflex. The cardiac disorder most commonly takes the form of tachycardiac paroxysms, recurring periodically, either in association with the menstrual flow, or, if this is in abeyance, at the times at which it ought to appear. We must assume in these cases that the local stimuli aroused by the pathological changes in the uterus and the ovaries have a reflex influence upon the cardiac nerves, by means of which the heart’s action is increased in frequency, without inquiring more particularly whether the reflex influence is effective by inhibiting the normal action of the vagus, or by stimulating the sympathetic, or, perhaps, by a combination of these factors. Much more rarely do we notice, in association with disorders of the reproductive system, a reflex decrease in the frequency of the heart’s action, this effect being explicable in the same manner as the well-known experiment of _Golz_, in which, if the abdomen of a frog be laid bare, and the intestine be struck sharply with the handle of a scalpel, the heart will stand still in diastole with all the