The Mechanism of the Larynx. By V. E. Negus, M.S. (London), F.R.C.S. (England), Junior Surgeon for Diseases of the Throat and Nose, King's fessor, and Hunterian Medalist, Royal College of Surgeons of England. With an Introduction by Sir Arthur Keith, F.R.S., London, and Foreword by Max A. Goldstein, M.D., F.A.C.S., St. Louis. 528 pages, with 160 illustrations. St. Louis: The C. V. Mosby Company, 3523 Pine Bivd. 1929. Price $16.50(cloth)