This is the third section of Hajek's complete work on diseases of the larynx, trachea and bronchi, of which the first two parts have already been reviewed. In this volume, innervation of the larynx and its various lesions are described. This is followed by tumors of the larynx, benign and malignant. Various laryngeal operations are described, and a discussion of malignant conditions of the trachea follows. There is a chapter on endolaryngeal therapy, followed by one on operations on the trachea. This last section of the work, by Hajek, is as beautifully illustrated, as systematically written and as intensely informative as were the first two portions. Altogether it forms as splendid a contribution to the knowledge of pathology and treatment of diseases of the upper air passages as one could wish.