The chief interest lay in the question whether operation could have been successfully performed.The patient, a man of fifty three, seen in consultation with Dr. Phippun, of Salem, was well apparently up to within six months of death, when appeared indisposition, indifference, and lack of ability to figure—symptoms hinted at for, perhaps, six months previously, but not interfering with work. Epileptiform attacks with loss of speech and twitching of right face with curious sensation in throat removed, and toward the end general convulsions. Right hemiplegia and right hemianopsia Came on about one month before death, with and double optic neuritis. Pupils were unaffected. There appeared to be numbness of right hand. The superficial reflexes were impaired on the sight. Intelligence was apparently good, the aphasia and agraphia were marked.Autopsy showed a tumor, apparently glioma, having a round surface, in the angle between Rolandic and Sylvian fissures, two by one and one-half inches, quite sharply defined. Vertical section showed extension inward about one inch with fairly distinct line of demascation, but no capsule. The tumor extended forward under the healthy cortex to a point beyond the transverse frontal sulcus. Microscopical examination to be reported later.