

Zoogeography 



A SYMPOSIUM PRESENTED ON AUGUST 26-27, 1957, 

 AT THE STANFORD UNIVERSITY JOINT MEETING OF 

 THE AMERICAN INSTITUTE OF BIOLOGICAL SCIENCES 

 AND THE PACIFIC DIVISION OF THE AMERICAN 

 ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE 



AND 

 A SYMPOSIUM PRESENTED ON DECEMBER 28, 1957, 

 AT THE INDIANAPOLIS MEETING OF THE AMERICAN 

 ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE 



Edited by 

 CARL L. HUBBS 



Publication No. 51 of the 

 AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE 



WASHINGTON, D. C. 1958 



