LIFE AND HEALTH 



A TEXT-BOOK ON PHYSIOLOGY FOX 



HIGH SCHOOLS, ACADEMIES 



AND NORMAL SCHOOLS 



BY 



ALBERT F. BLAISDELL, M.D. 



i/ 



AUTHOR OF "CHILD'S BOOK OF HEALTH," "HOW TO KEEP WELL" 

 " OUR BODIES AND HOW WE LIVE," "PRACTICAL PHYSIOLOGY" 



GINN & COMPANY 



BOSTON NEW YORK CHICAGO . LONDON 



