This book is an index of the manner in which the subject of otology has developed in recent years. It is filled with information presented in concise and direct form with no unnecessary padding. Each subject seems to be given adequate treatment. The anatomic and physiologic aspects of the aural and surrounding structures are clearly and beautifully described and illustrated by numerous splendid drawings which cleverly illustrate the points aimed at. Surgical procedures are equally well described, and in matters of diagnosis and treatment the author displays the ripe judgment of large experience. It is equally satisfactory in the manner in which the more common and more simple affections of the aural apparatus are described, and in the more technical matters pertaining to the detection of impairment of the sense of hearing and the function of equilibrium and the intricate operations on the mastoid and the middle and internal ear.