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Seven of the ten chapters in this monograph on psychosurgery have already been published by the authors in medical periodicals, but the volume brings these together in satisfactory fashion and welds them into a relatively complete whole. Leucotomy has been the subject of study in Brazil for nearly fifteen years, and statistics on its effectiveness are available for more than 400 cases. The authors devote special chapters to the effect of leucotomy in epileptic patients and in children, and they also compare the original Moniz method with the Freeman and Watts technique. A study of the parietal and temporal operations has indicated their inferiority to frontal leucotomy. A three-stage frontal leucotomy, with severing of the basal quadrant on each side, followed by section of the superior quadrants in obdurate cases, has permitted the authors to return an appreciable number of patients to effective living without the damaging effects of excessive