Head. Membranes and substance healthy; on the under surface of right hemisphere, corresponding with the middle lobe, a remarkably deep and extensive depression, the deepest part corresponding to the centre of the brain; this depression was lined with the arachnoid, which being reflected formed a sac, that contained 12 ounces of serous fluid, and completely filled the cavity. The cerebral substance beneath and around was perfectly sound and entire. Thorax. Viscera healthy. Abdomen. Mucous membrane of ilium and cæcum extensively and greatly ulcerated.
4. Vascularity &c. with preternatural Firmness of Brain.
Case XL.
Thomas Conolly, æt. 58, labourer. Admitted on 7th day of fever: severe pain of head early in the attack which has continued without intermission, accompanied with vertigo; scarcely any sleep; face flushed; no uneasiness of chest; abdomen not tender; no stool for four days; tongue loaded and dry; pulse 96, weak.
8th. Less pain of head; no improvement in other symptoms; pulse 92.
9th. Scarcely any pain of head; no sleep; delirium; muscular tremor; tongue brown and dry; pulse 111.
10th. Pain quite gone; more insensible; constant talkative delirium; colour of cheek dusky, almost livid; respiration hurried; stools and urine in bed; pulse 112, feeble.
11th. Died.
Head. Membranes vascular; arachnoid thickened and opake; substance of brain highly vascular and preternaturally firm; some fluid beneath membranes and in ventricles. Thorax. [Pleuræ adherent;] lungs gorged with blood. Abdomen. Liver and spleen exceedingly softened, readily breaking down beneath the finger.
Case XLI.