ADVANCED BIOLOGY 



BY 



FRANK M. WHEAT 



Chairman, Department of Biology, 

 George Washington High School, New York 

 Instructor in Biology, New York University 



AND 

 ELIZABETH T. FITZPATRICK 



Chairman, Department of Health Education, 

 George Washington High School, New York 



AMERICAN BOOK COMPANY 



NEW YORK CINCINNATI CHICAGO 



BOSTON ATLANTA 



