In previous papers, I have considered various phases of neurologic surgery. In this paper I shall discuss my series of brain tumors, which number eighty-five. These unquestionably present the most difficult and varied problems which the neurologic surgeon encounters.
In a recent paper read before the Clinical Congress of Surgeons, Cushing said that the time had passed when there is any purpose in speaking of the mortality in brain tumor cases any more than there is in speaking of the mortality in abdominal tumor cases. That such a generalization leads nowhere is also apparent in a study of my cases, and would be most discouraging were we to content ourselves with the bald statement that of the eighty-five patients, we lost twenty-nine, or 35.5 per cent. But when we study these cases from other angles, we find that eighteen of these twenty-nine deaths were in patients suffering with glioma, and