This book appears to be a translation into English of a monograph originally written a few years ago in Germany and since brushed up for American consumption. It is a good translation and sets forth clearly the recent views that have developed abroad on the diagnosis and nonoperative treatment of diseases of the colon and rectum. About 90 per cent of the references cited were published before 1935, so that a little doubt arises as to how much care was taken in assembling the American model. However, the printing is clear, and the illustrations are excellent. The bibliography, in contrast to the rest of the book, has been carelessly put together and does not follow the style usually adopted by the "better-dressed" medical textbooks.