DISCUSSION OF SYMPTOMS AND PHYSICAL SIGNS. Pain. —Five cases were found in which no symptoms referable to the abdomen were present. In 157 cases accurate data as to the pain were given. In two cases pain radiated from right to left hypochondrium, while one case of each of the following was met: From navel to bladder; from vulva to navel; from right iliac fossa all over abdomen; from bladder to cecum and umbilicus; and from the epigastrium to the right side of umbilicus. In most cases the pain is sudden in onset, and usually constant and dull, with colicky exacerbations of extreme severity. The intermittent character comes out strongly in some instances, while in others it is less evident. The causation of the pain is generally admitted to be due to the intestinal contraction. Borszéky37so considers it, and refers to the experimental work of