Professor Catel has done a beautiful piece of work in this book on the normal and pathologic physiology of the movements throughout the alimentary tract. This volume is concerned particularly with the clinical and pharmacologic aspects. The illustrations, most of which are reproductions of roentgen studies, are numerous and add much to the understanding of the subject; they might well be referred to again and again, as one refers to an atlas. Thoroughness characterizes the volume: on controversial points the varying opinions are adequately given, and case examples are plentiful. Yet, in spite of great detail, there is no unnecessary repetition.
The first chapters describe the normal mechanisms of sucking and chewing and the abnormalities which interfere with these. Swallowing may be hindered by many esophageal variations, which are presented fully. In a consideration of abnormalities of the stomach appears an interesting discussion of the etiology of pyloric stenosis. Celiac