DURING the past two decades the treatment of bleeding peptic ulcer has been evolutionized. Its seriousness and high toll of life have been better appreciated. Multiple variations of treatment have arisen, attesting in their multiplicity alone to the difficulties and disappointments attendant on the treatment of the massively bleeding peptic ulcer. This report is concerned with cases of bleeding peptic ulcer encountered at this hospital from October 1946 through October 1948. During this period 347 patients with peptic ulcer were treated, 115, or 33 per cent, of whom had gross bleeding. Gross bleeding is defined as demonstrable hematemesis or melena on the patient's admission to the hospital or within forty-eight hours previous to his admission. The amount of bleeding varied from a minor hemorrhage lasting only a day or two, with no change in the hematologic picture, to rapid, repeated, massive hemorrhages leading to exsanguination and death despite multiple transfusions.