THE 
2ooLOGiCAL Society of Philadelphia 
OFFICE, FAIRMOUNT PARK. 
OFFICERS FOR THE YEAR ENDING APRIL 28tll, 1881. 
PRESIDENT, 
WILLIAM S. VAUX. 
VICE-PRESIDENTS: 
GEORGE W. CHILDS, | HENRY LEWIS. 
CORRESPONDING SECRETARY, 
JOHN L. LECONTE, M. D. 
RECORDING SECRETARY 
JOHN SAMUEL. 
TREASURER, 
EDWARD BIDDLE. 
FREDERICK GRAFF, 
CHARLES W. TROTTER, 
J. VAUGHAN MERRICK, 
JOHN WAGNER, 
WILLIAM H. MERRICK, 
FRANCIS T. FASSITT, 
S. FISHER CORLIES, 
THEO. L. HARRISON, 
HENRY C. GIBSON, 
ISAAC J. WISTAR, 
WILLIAM HACKER, 
Prof. JOSEPH LEIDY. 
ACTUARY, 
CHARLES L. JEFFERSON. 
SUPERINTENDENT OF THE GARDEN, 
ARTHUR E. BROWN. 
SOLICITORS: 
SAM'L WAGNER. | W. W. MONTGOMERY. 
