Spontaneous intracerebral hemorrhage is a rather rare condition, but it has occurred often enough to be of importance in the differential diagnosis of tumor of the brain. We have encountered it in 9 cases, and in each case craniotomy was performed for an intracerebral neoplasm. The hemorrhage has always been situated in the cerebral hemisphere, not in the brain stem or in the cerebellum, and has followed injury, strenuous exercise, severe emotional strain or, in one instance, endocarditis. Robinson1made a study of cases reported of encapsulated hemorrhage into the brain reported in the literature and pointed out that even when such hemorrhage was rather extensive it did not cause sudden death and that recovery might even occur, provided the hemorrhage was either walled off if it was large or absorbed if it was small. The duration of life after hemorrhage into the brain is not known, the period