POPULAR OFFICIAL GUIDE 
TO THE 
New York Zoological Park 
By WILLIAM T. HORNADAY, Sc.D. 
Director and General Curator 
ILLUSTRATED BY ELWIN R. SANBORN 
WITH MAPS, PLANS AND ILLUSTRATIONS 
TWELFTH EDITION— JUNE 1, 1913 
PUBLISHED BY THE 
NEW YORK ZOOLOGICAL SOCIETY 
Il WALL STREET, NEW YORK 
