10th. Pain of head gone; that of abdomen undiminished; 4 stools.

11th. Pain of head not returned; tenderness of abdomen undiminished; 7 stools; pulse 124.

12th. Tenderness of abdomen unabated; now swollen, hard, and rounded at umbilicus; 7 stools; pulse 125.

14th. Tenderness and purging continue. Died.

Head. [Falciform process of dura mater ossified;] substance of brain vascular; more fluid than natural in the ventricles. Thorax. [Pleuræ adherent; serous effusion into parenchyma of lungs. Abdomen. Peritoneal sac contained several ounces of pus and serum; peritoneum covering the liver coated with coagulable lymph; peritoneal coat of the intestines highly inflamed; colon adherent to the omentum all around;] all its coats so softened as to be easily torn; mucous membrane in general healthy.

Case XIX.

Elizabeth Gasset, æt. 32, married, admitted on the 8th day of fever. Attack commenced, in addition to the common symptoms, with violent pain of the bowels. Epigastre still extremely tender; tongue red, clean, moist; no stool for six days; no pain of head or chest; pulse 99.

9th. Tenderness of epigastrium continues; tongue red and dry; no stool; pulse 84; no cerebral nor pectoral symptoms.

10th. Died.

Head. Membranes and substance of the brain highly vascular; no effusion. Thorax. Viscera healthy. Abdomen. [Eight inches of the jejunum intussuscepted within a portion of the same intestine of equal length; the farthest extremity of the intussuscepted part mortified; the mucous membrane of the containing portion highly vascular and in a state of ecchymosis; the intestinal canal, between the constricted portion and the stomach, contracted, and its valvulæ conniventes enlarged and œdematous; the size of the tube beyond the disease much diminished, and the colon, especially, contracted into a mere cord.]