My own experience has led me to conclude that it is certain distinct local mechanical stimuli affecting the female genital organs which, acting for a long period on the sensory nerves of the uterus or its annexa, induce by reflex action the before-mentioned digestive disturbances. Diseases of the vulva and the vagina, catarrhal inflammation, colpitis and leucorrhœa, and prolapse of the vagina, do not by themselves lead to the occurrence of uterine dyspepsia; nor do inflammations of the uterine mucous membrane, such as endometritis (unless associated with parenchymatous changes of the whole uterus), chronic catarrh of the mucous membrane, erosion and ulceration of the cervix to an inconsiderable extent, or moderate perimetritic and parametritic exudations. On the other hand, uterine dyspepsia frequently ensues in cases of uterine displacements, flexions, or versions, or in cases of structural changes of the uterus accompanied by enlargement of the organ, chronic metritis, myomata, especially when intramural (interstitial), displacement of the Fallopian tubes and the ovaries, chronic oöphoritis, extensive inflammatory exudations, resulting from pelvic peritonitis, and leading to dislocation, “compression” or distortion of the uterus and its annexa, deep follicular or carcinomatous ulceration of the cervix, or, finally, ovarian tumors. As the commonest condition giving rise to dyspeptic disturbances of the kind under consideration, retroflexion of an enlarged uterus must be mentioned. Under the head of uterine dyspepsia, we may also classify dyspeptic disturbances occurring at the time of puberty or of the menopause, and in association with certain amenorrhoeic and dysmenorrhœic conditions, and, in addition, the vomiting of pregnant women. The vomiting of pregnant women, which must be regarded as a reflex disturbance of the stomach, occurs, with especial severity in first pregnancies, in the early months of pregnancy, with such regularity that it is regarded as one of the most typical signs of pregnancy. Thus, in 177 pregnant women, _Horwitz_ observed vomiting in 147 (83 of whom were primiparæ, and 64 multiparæ), and in 29 only was this symptom wanting. In this series of cases, it most commonly made its appearance between the tenth and eleventh week of the pregnancy. The vomiting of pregnant women occurs most commonly early in the morning, immediately after rising (morning sickness), but also at other times of the day; it usually takes place easily, without any great distress, and after it is over the patient feels quite comfortable. It rarely continues later than the fourth month of pregnancy.