This is a primer for the student of gastro-enterology. The author discusses the subject in four chapters including motor, secretory and sensory disturbances and methods of examination. Emphasis is laid on the fact that all digestive disturbances are interrelated, and the divisions made are schematic for purposes of study. The more common disturbances are briefly but clearly treated, and illustrations are used to emphasize the more important diseases. The more complicated diseases are discussed briefly. The volume is easily read and should be of decided benefit to the young student.