_Head._ An abscess over the posterior extremity of the sagittal suture, around which for the space of two inches, the pericranium was destroyed, leaving this portion of the bone bare. Dura mater natural; arachnoid and pia mater vascular; substance of brain natural; effusion between dura mater and arachnoid; lateral ventricles full of serum; two ounces at base. _Thorax._ [Pleuræ of right side covered throughout with pus of very thick consistence, presenting the appearance of the interior of a large abscess, contained two pints of fluid consisting of serum, pus and blood; superior lobe of right lung hepatized and tuberculated; some of the tubercles in a state of suppuration; middle lobe contained a large abscess; lower lobe much wasted, blackened, and in many points softened down to a black fluid; left thoracic cavity contained about one pint of pure serum; pleuræ very vascular but not adherent; substance of lung perfectly sound;] condition of mucous membrane of bronchi not stated. _Abdomen._ Mucous membrane of ilium contained several ulcers; other viscera healthy. CASE XCVIII. JOHN GREEN, æt. 10. Period and progress of disease unknown: throat much inflamed and ulcerated; deglutition difficult; respiration painful; much muco-purulent fluid constantly discharged from nostrils; eyes suffused; lips and teeth sordid; tongue cannot be protruded; pulse cannot be counted; noisy delirium; several dark-coloured vesicles on hands, especially in the neighbourhood of the joints. Died the same evening. _Head._ Membranes slightly vascular; arachnoid and dura mater adherent at several points; substance of brain slightly vascular; effusion into ventricles. _Thorax._ Mucous membrane of trachea and bronchi highly vascular; larynx much inflamed; arytænoid cartilages ulcerated; epiglottis dark and thickened; [pleuræ adherent throughout; substance of lungs inflamed.] _Abdomen._ Mucous membrane of intestines vascular; mesenteric glands enlarged; liver mottled on surface. CASE XCIX. ANN LEVITT, æt. 24, married. Admitted on the 16th day of fever, which came on with severe pain of the head and epigastrium; pain of head is now gone, giddiness remains; much pain of limbs; scarcely any sleep; mind confused; eyes dull and heavy; face flushed; no uneasiness of chest; abdomen extremely tender on pressure; tongue red, parched, and cracked; lips and teeth sordid; bowels purged; pulse 123. 17th. After the application of ten leeches to the abdomen the tenderness is much diminished; the pulse fallen to 96; vomiting. 18th. Eight leeches again applied; abdomen now free from pain; vomiting continues; tongue unchanged; pulse 106. 19th. Vomiting undiminished; eight stools; abdomen again tender. 20th. Vomiting; five stools; pulse 108; slight pain of abdomen on full pressure. 22d. Abdomen tender, swollen, and tympanitic; eight stools; pulse 96; great prostration.