History. —Mr. B., a retired farmer, aged 62, presented himself at my office complaining of pain in the abdomen, and alternate attacks of constipation and diarrhea. The personal and family history was negative. The patient had always been well, with the exception of having been confined to his bed for a few days, some years ago, on account of having been kicked in the abdomen by a horse. Examination of the abdomen revealed a mass about the size of an orange in the cecal region. The patient had observed the occurrence of ribbon stools. Operation. —April 29, 1910, at the German Hospital, I did a laparotomy and found an extensive involvement of the cecum, appendix and adjacent glands. A macroscopic diagnosis of carcinoma was made and the following operation performed: The ileum was clamped and divided three inches from the ileocecal junction. The cut proximal end was closed and inverted