Correlative neurosurgery. By Edgar A. Kahn, robert C. Bassett, Richard C. Schneider, and Elizabeth Caroline Crosby. Wtuih eleven other contributors. Foreword by Kenneth G. McKenzie, Toronto. II × 8⅜ in. Pp. 413 + xvi, with 235 ilustrations. 1955. Springfield, Ill.: C.C. Thomas. (Oxford: Balckwell Scientific Publications.) £7