_Abdomen._ Peritoneal coat of intestines vascular; mucous membrane of small intestines, and especially of ilium, inflamed and ulcerated; near the caput coli a large ulcer had perforated the peritoneal coat, and through the opening, which was an inch and a half in diameter, a quantity of fæculent matter had escaped into the cavity of the peritoneum; spleen very much softened, easily breaking down under the finger. _Head._ Pia mater highly vascular; substance of brain slightly vascular; a small quantity of bloody serum effused into the lateral ventricles. _Thorax._ Mucous membrane of bronchi of dark red colour; tubes contained much frothy mucus; substance of both lungs gorged; [pleuræ of left side contained a pint and half of fluid; pericardium adherent to the pleura costalis; heart flaccid and pale.] CASE LXXXVII. THOMAS KENNIE, æt. 30, labourer. Admitted on 10th day of fever: attack commenced, besides the ordinary symptoms, with tenderness of abdomen: at present the abdomen, which is generally tender, is exceedingly so over the right iliac region; bowels stated to be regular; tongue foul, red and dry; thirst; some pain of chest on full inspiration and coughing; cough troublesome; respiration hurried; little sleep; mind confused; face flushed; pulse 120, weak. 11th. Tenderness of abdomen continues; five stools; respiration hurried, with occasional cough and viscid expectoration; slight pain of head; mind distinct; eyes suffused; skin cool, covered with petechiæ. Died next day. _Abdomen._ Mucous membrane of small intestines very vascular, that of ilium intensely so; contained several oval and deep ulcers, one of which had perforated the peritoneum, the aperture of which was sufficiently large to allow the apex of the ring finger to pass through it; the peritoneal cavity contained about a pint of pus; the intestines were all glued together; the surface of the liver was very dark and much inflamed. _Head._ Membranes of brain vascular; substance rather vascular; more fluid than natural in the ventricles. _Thorax._ Viscera healthy. CASE LXXXVIII. DAVID PIGGOTT, æt. 19, furrier. Admitted on the 9th day of fever: at present, severe pain in the right hypochondrium, stretching towards the umbilicus, increased on pressure; tongue brown and dry; no stool; slight cough; some pain of head; eyes suffused; pulse 108, firm. V.S. ad ℥x. 10th. Pain of right hypochondrium gone; tongue the same; no pain of head; very deaf; slept tolerably; pulse 100, soft. 11th. No pain; tongue unchanged; one copious stool, consisting chiefly of blood; slept well; mind confused; countenance rather improved; pulse 96. 12th. No pain; two stools, with less admixture of blood; mind distinct; pulse 110. 13th. Eight stools, scanty, without blood; tongue dry and furred; slept ill; great prostration; pulse 90. Died next day.