

MAN AND THE 

 BIOLOGICAL WORLD 





J. Speed Rogers 



Director, Museum of Zoology, University of Michigan 



Theodore H. Hubbell 



Curator of Insects, Museum of Zoology, University of Michigan 



C. Francis Byers 



University of Florida 

 With illustrations by 



William L. Brudon 



Artist, Museum of Zoology, University of Michigan 



SECOND EDITION 



New York Toronto London 

 McGRAW-HILL BOOK COMPANY, Inc. 



1952 



