Last year the author published a monograph of seventy-two pages, "Das Ulcus Problem im Lichte moderner Röntgenforschung," which was favorably reviewed in the Archives (48:169 [July] 1931). The present work enlarges the monograph to include the entire digestive tract. The high degree of excellence is retained. The illustrations are numerous, well chosen, clear and beautifully reproduced. The text is concise and direct; the subject matter seems to be presented by a clinician rather than a roentgenologist. The bibliographies are quite complete.
The first thirty pages are devoted to the esophagus: its anatomy and physiology and the various types of pathologic changes, including foreign bodies, ulcer, diverticulum, varicose veins, benign and malignant strictures, idiopathic dilatation of the esophagus and diaphragmatic herniation. Two hundred and fifty pages are employed in a similarly detailed discussion of the stomach and duodenum. This section includes the work previously presented in monographic form, and in addition