01056nam a2200181 i 4500 240120s xx 001 0 und d GCL 613 BYR Byrd Health / Third edition. W.B. Saunders Company, London : 1961. 421 pages : hbk. 25 cm. Includes index. from Preface Many changes, starting with Health as a new title, have been made in this revision of the Textbook of College Hygiene These changes have been brought about by new research and new facts in the field of health, by further studies of the health problems and interests of college students and by suggestions for modifications by college and university teacher who have adopted previous editions of the textbook for their classes Seven new chapters have been added, with the following titles Reasons for Health, Stress and Tension, Physical Fitness, Safety in Sport, Malaria, Radiation and Health, and Civil Defense Physical Education ddc 0 0 ddc 0 613_000000000000000_BYR 0 2285 LPL LPL BK 2024-01-20 0 613 BYR 466 2024-01-20 13:05:50 2024-01-20 BK 1608 1608