This Volume of nearly 1,000 pages is the most comprehensive of the recent treatises that have appeared on this subject. The opening chapters are devoted to a consideration of the embryology, anatomy, physiology and malformations of the parts, to which nearly 100 pages are devoted. Methods of examination and diagnosis are then taken up, followed by a detailed description of the various pathologic conditions. A noticeable, at the same time excellent, feature of the work is the detail with which the author describes the treatment, whether operative, medicinal or hygienic. Nothing is left to be supposed, and no point which the author thinks may have a bearing on the case has been deemed too small to merit his attention. While this undoubtedly adds considerably to the size of the volume, it is a good fault, for success or failure often depends on some apparently unimportant detail of technic.