_Head._ Some effusion beneath the membranes, and at the base of the skull; substance of brain natural; anterior and middle lobes firmly adherent. _Thorax._ Healthy. _Abdomen._ The ilium contained one large and spreading ulcer, the glands around which were darkened and inflamed. CASE XXIV. MARY CROUCH, æt. 30. Admitted on the 7th day of fever. At present pain of head gone; some pain of back continues; no sleep; great restlessness; almost constant moaning; no uneasiness of chest; no cough; respiration hurried; pulse 108. 8th. Sleeplessness, hurried respiration, tenderness of abdomen continue; tongue red and glazed. 9th. Delirium; respiration hurried and noisy; lips and teeth sordid. 10th. Subsultus tendinum. 11th. Face livid; dark, bloody-coloured fluid issuing from the mouth; convulsive twitchings of muscles of face and hands. Died. _Head._ Arachnoid opake; dura mater vascular; substance of brain vascular; some effusion between membranes and into ventricles. _Thorax._ Nearly healthy. _Abdomen._ Mucous membrane of ilium vascular; liver soft. CASE XXV. MARY GOODMAN, æt. 50, nurse. Admitted on 4th day of disease: has been in a state of constant intoxication for several days past; has had much pain of head, which is now nearly gone; mind confused; eyes injected; abdomen tender; bowels purged; tongue brown and dry in middle; white at edges; tremulous; pulse 120; skin hot. Died next morning. _Head._ Sinuses of dura mater turgid with blood; vessels of pia mater greatly congested; an ounce and a half of serum at the base of the skull. Theca vertebralis highly vascular; great congestion of vertebral veins; some effusion of serum at cauda equina. _Thorax._ Healthy. _Abdomen._ Mucous membrane of small intestines vascular; [liver greatly enlarged.] CASE XXVI. JOHN EYLES, æt. 25, servant. Admitted on the 10th day of scarlet fever. Throat sore; deglutition painful; eruption fading; no pain of head, chest, or abdomen; tongue red and glazed; lips and teeth sordid; bowels purged; pulse 129. 11th. Voice hoarse; pulse 120; not the slightest pain of head. 14th. Numerous ash-coloured crusts scattered over the internal fauces; countenance anxious; respiration hurried; pulse 108. Died next morning. _Head._ Arachnoid thick, opake, and unusually firm, with slight effusion beneath it; substance both of cerebrum and cerebellum highly vascular; pituitary gland enlarged and beginning to suppurate. _Thorax._ Larynx inflamed, covered with superficial circular ulcers; tongue aphthous; mouths of ducts on the surface of the amygdalæ ulcerated. _Abdomen._ Mucous membrane of ilium and cæcum highly vascular, not ulcerated; vessels of all the organs exceedingly turgid with blood. 2. _Vascularity of Brain, Membranes, &c. with Effusion of Coagulable Lymph and Formation of Pus._ CASE XXVII.