Textbook of physiology, by William D. Zoethout, Ph.D., Professor of Physiology in the Chicago College of Dental Surgery (Loyola University). Publishers, The C. U. Mosby Company. The Preface to the Sixth Edition is prompted by the publishers and author, 3525 Pine Blvd., St. Louis, Mo., because of the many recent discoveries. The chapters dealing with hormones and vitamins have been carefully rewritten and the chapters on circulation have been largely revised, and much new material has been added. There are 291 illustrations, and about 700 reading and text pages. Price, $4.00