The Academy of Natural 
of Philadelphia 
R. A. F. PENROSE, JR., 
President. 
EDWIN G. CONKLIN, 
HENRY SKINNER, 
VICE-PRESIDENTS. 
JAMES A. G. REHN, 
RECORDING SECRETARY. 
J. PERCY MOORE, 
Corresponding Secretary. 
GEORGE VAUX, JR. 
Treasurer. 
ENCES 
WITMER STONE, 
HENRY A. PILSBRY, 
GEORGE L. HARRISON, JR. 
T. CHALKLEY PALMER, 
Curators. 
SPENCER TROTTER, 
Librarian. 
Logan Square, 
PHILADELPHIA PA 
