_Head._ Membranes and substance of the brain vascular; at the surface of the right posterior lobe, an abscess of considerable size, the floor of which was formed by the pia mater; gelatinous effusion between the arachnoid and the pia mater. _Thorax._ Mucous membrane of bronchi vascular; substance of lungs healthy; [left cavity of pleuræ contained eight ounces of bloody serum; right six.] _Abdomen._ Peritoneal and mucous coats of jejunum and ileum vascular; mesenteric glands greatly enlarged; several of them suppurated; [large quantity of serum mixed with pus in the peritoneal cavity; omentum much thickened; adhered to the superior portion of the spleen; to the edge of the left lobe of the liver, and to the portion of the diaphragm immediately above the spleen; in this manner it formed the external boundary of an abscess of considerable size in the substance of the spleen; portions of the sac itself ulcerated; the rest of the spleen nodulated; these nodules when cut into were found to consist chiefly of puriform matter contained in cells; thoracic duct enlarged; receptaculum chyli exceedingly enlarged and ulcerated.] CASE XCVII. CATHERINE FRENCH, æt. 24. Admitted on the 9th day of scarlet fever. Complaint came on with sudden loss of strength, shivering and violent pain of head and chest: at present throat sore; deglutition difficult; some pain of chest; great tenderness of abdomen; nausea and vomiting; tongue dry, brown and cracked; slight pain of head; eyes dull, heavy and suffused; pulse 104, pretty strong; no eruption. 23d. The pain of throat, the difficult deglutition, the tenderness of the abdomen had disappeared; the pulse had fallen to 90, and she appeared to be gradually recovering until this day, when, preceded by a slight return of sore throat, erysipelas appeared on the face; no pain of head; tongue again brown and dry; pulse 96. 24th. No sleep; delirium; erysipelas extending; pulse 108. 38th. Erysipelas has disappeared, but other symptoms are aggravated; extreme restlessness; much delirium; frequent cough, with scanty expectoration; tongue brown, dry and cracked; pulse 86. 39th. Respiration difficult; delirium; vomiting; pulse 120. 41st. Respiration rattling; delirium; inclined to sleep; pulse 120. 42d. Respiration increasingly difficult and painful; pulse 129. 43d. Extremely restless; almost constant moaning; countenance anxious; cough; tongue continues brown and dry; lips and teeth sordid; pulse 122. 44th. Died during the night.