This is a timely, reliable and useful monograph on the physiology and pathology of digestion in infants. The author endeavors to summarize and criticize both the experimental data and the clinical observations that have accumulated during the last two decades in this field, the conclusions being submitted as guides for the practicing pediatrician. The chapters include the motor and secretory functions and disturbances of the alimentary canal in infancy and the digestion of proteins, carbohydrates and fats, as well as the rôle of bacteria in the alimentary tract in pathologic conditions. Each chapter ends with the useful references to the more important literature. The monograph will be helpful to both the pediatrician and the laboratory worker.