THE 
FIFTIETH ANNUAL REPORT 
OF THE 
BOARD OF DIRECTORS 
OF THE 
ZOOLOGICAL SOCIETY 
OF PHILADELPHIA. 
(Incorporated March 21st, 1859.) 
READ AT THE ANNUAL MEETING OP THE MEMBERS AND LOAN 
HOLDERS OF THE SOCIETY. 
April 27th, 1922. 
PHILADELPHIA: 
Press of Allen, Lane & Scott, 
1211-1213 Clover Street, 
