Book Review The Diseases of Infancy and Childhood . For the use of students and practitioners of medicine. By L. Emmett Holt, M.D., Sc.D., LL.D., Professor of Diseases of Children in the College of Physicians and Surgeons (Columbia University), New York; Attending Physician to the Babies' and Foundling Hospitals, New York; Corresponding Member of the Gesellschaft für Innere Medizin und Kinderheilkunde, Vienna, and Honorary Member of the Gesellschaft für Kinderheilkunde, Germany; and John Howland, A.M., M.D., Professor of Pediatrics in the Johns Hopkins University, Baltimore; Director of the Harriet Lane Home; Pediatrician-in-Chief to the Johns Hopkins Hospital; Corresponding Member of the Gesellschaft für Innere Medizin und Kinderheilkunde, Vienna. Seventh Edition, fully revised, with two hundred and fifteen illustrations, pp. 1180. New York and London: D. Appleton and Company. 1916.