r ; 
ft* 
# i 
HENRY E. CRAMPTON, A. B., PH. D. 
NEW YORK CITY. U. S A. 
Professor of Zoology 
B arnar d Col lege, Columbia University 
Curator ofTW^tebrate Zoology 
American Museum of Natural History 
Research associate 
Carnegie institution of Washington 
=•* i 
rt 
