In presenting these two cases no attempt will be made to review the literature of the subject of tumors at the ponto-cerebellar angle, which has now become quite extensive. They are recorded as a contribution to the subject for what they may be worth as clinical and postmortem records.
—A single man, clerk, aged 29, was admitted to the Allegheny General Hospital on April 18, 1905, in the service of Dr. T. M. McKennan, to whom I am indebted for the early notes of the case and who was first to make the correct diagnosis.
—The family history was unimportant. The patient had enjoyed good health up to the time of his present illness. His personal habits had been good. He denied syphilis. The present illness began about a year previously with headache, which soon became of daily occurrence, and grew more and more severe. It