A STUDY of the patients who have entered the surgical wards of the New York Hospital with serious hemorrhage from the gastrointestinal tract shows that the large majority were the victims of duodenal or gastric ulcer, whereas a minority presented a variety of other pathologic conditions. I was asked to discuss the large subject of hemorrhage from the gastrointestinal tract in its relation to surgery, but since it is obvious that I cannot cover so large a field in the short time at my disposal, I shall confine myself to the surgical aspects of hemorrhage from peptic ulcer, which, in . . .