THE 
NINTH 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 28th. 1 88 1. 
PHILADELPHIA: 
^881. 
