The third American edition has been completely revised and expanded, although parts of the text of the second edition have been included. I wish to acknowledge once again the excellent translation of the former two editions by Dr. ALAN B. ROTHBALLER and the late Dr. JERZY OLSZEWSKI. With this edition I have followed the general theme of the original German edition published in 1951. However, I have tried to consider modern techniques and the many new publications on the subject of brain tumors. Meanwhile, an early desire of mine has been fulfilled by the completion and publication of a...