This report comprises an account of intracranial lesions seen in the Neurosurgical Institute in Paris, from December, 1929, to April, 1930. Realizing the importance of ophthalmologic and otologic, as well as careful neurologic, examination in cases of suspected tumor of the brain, the authors have established a hospital given over to neurosurgery. The consequences of cooperative and intensive study in these cases are obvious. Increased accuracy of diagnosis and a wider operative experience, with a marked improvement in the surgical results, have followed the grouping of such cases in a single hospital. That the careful study of the cellular structure of the verified lesions of the brain and their separation into distinctive pathologic groups have not been neglected is attested by many excellent photomicrographs illustrative of the various types.
Thirty-five cases are described in detail, each with a careful account of the history, presenting symptoms and all other facts on