THE 
THIRTEENTH ANNUAL REPORT 
OF THE 
BOARD OF DIRECTORS 
OF THE 
ZOOLOGICAL SOCIETY 
OF PHILADELPHIA. 
(Incorporated March 21st, 1859.) 
READ AT THE ANNUAL MEETING OF THE MEMBERS AND LOAN- 
HOLDERS OF THE SOCIETY. 
April 23D, 1885. 
PHILADELPHIA: 
Allen, Lane & Scott's Printing House, 
Nos. 229-231 South Fifth Street. 
1885. 
