From a careful study of the matter I have come to the conclusion that acute intestinal obstruction is more frequent after ovariotomy than after hysterectomy, and this is due to the fact that the stump or pedicle left after the removal of an ovarian tumour lies higher in the pelvis, and in closer relation to ileum and jejunum, than the cervical stump left after the removal of the uterus. This view also receives support from the fact that acute intestinal obstruction following hysterectomy is more frequent in the practice of those surgeons who perform subtotal hysterectomy improperly, and leave a large piece of the neck of the uterus sticking up like a median post in the floor of the pelvis. As far as I can judge from the scanty records relating to this complication after hysterectomy, it is the sigmoid flexure of the colon which is most commonly adherent to the cervical stump. The best way of avoiding this accident is to remove the supravaginal cervix so freely that, when the peritoneum is closed over the incision in the floor of the pelvis, there is nothing visible except a narrow thin line of suture at the base of the bladder. The only rational method of treating acute intestinal obstruction following operations in the pelvis, is to promptly reopen the abdomen and set free the adherent coil of gut. Operations of this kind after hysterectomy are more often successful than when they are a sequel to ovariotomy, and this is, I think, due to the fact already mentioned, that when intestinal obstruction follows ovariotomy or oöphorectomy, the obstruction arises in the small intestine and is usually very acute and more dangerous; whereas after hysterectomy the obstruction affects, as a rule, the sigmoid flexure of the colon, and though it may be fairly acute, is not nearly so dangerous, and gives far better results to operative treatment. =Perforating ulcer of the stomach and small intestine.= A rare cause of death after ovariotomy or hysterectomy is a perforating ulcer of the stomach or jejunum. Since 1887 I have seen three cases. In each instance the patient died from septic peritonitis. Rosthorn lost a patient from perforating ulcer of the stomach after hysterectomy. Olshausen states that he has seen at least four examples of this accident.[2] [2] Bland-Sutton, J. On Perforation of the Stomach and Small Intestine as a Sequel to Ovariotomy and Hysterectomy. _Journ. of Obstet. and Gyn. of the British Empire_, 1909, xv.