Book Review Holt's Diseases of Infancy and Childhood: A textbook for the use of students and practitioners . By the late L. Emmett Holt, M.D., and John Howland, M.D. Revised by L. Emmett Holt, Jr., M.D., and Rustin McIntosh, M.D. Eleventh edition. 4°, cloth, 1421 pp., with 262 illustrations and 8 plates. New York: D. Appleton-Century Company, Incorporated, 1940. $10.00.