1919.] 
NATURAL SCIENCES OF PHILADELPHIA. 
315 
The annual election of Officers, Councillors and members of the 
Committe on Accounts was held December 16th, with the following 
result: 
President .John Cadwalader, A. M., LL.D. 
Vice-Presidents .Edwin G. Conklin, Ph.D., Sc.D. 
Henry Skinner, M. D., Sc.D 
Recording Secretary .Edward J. Nolan, M. D., Sc.D. 
Corresponding Secretary .J. Percy Moore, Ph.D. 
Treasurer .George Vaux, Jr. 
Librarian .Edward J. Nolan, M. D., Sc.D. 
Curators .Witmer Stone, A. M., Sc. D. 
Henry A. Pilsbry, Sc. D. 
Henry Tucker, M. D. 
Spencer Trotter, M. D. 
Councillors to serve three 
years .Edwin S. Dixon. 
Robert G. LeConte, M. D. 
George Spencer Morris. 
George L. Harrison, Jr. 
Committee on Accounts .Charles Morris. 
Samuel N. Rhoads. 
John G. Rothermel. 
Thomas S. Stewart, M. D. 
Walter Horstmann. 
COUNCIL FOR 1920. 
Ex-Officio .—John Cadwalader, A. M., LL. D., Edwin G. Conklin, 
Ph. D., Sc. D., Henry Skinner, M. D., Sc. D., Edward J. Nolan, 
M. D., Sc. D., J. Percy Moore, Ph. D., George Vaux, Jr., Henry 
A. Pilsbry, Sc. D., Witmer Stone, A. M., Sc. D., Henry Tucker, 
M. D., Spencer Trotter, M. D. 
To serve three years .—Edwin S. Dixon, Robert G. LeConte, M. D., 
George Spencer Morris, George L. Harrison, Jr. 
To serve two years .—Philip P. Calvert, Ph. D., Frank J. Keeley, 
Walter Horstmann, T. Chalkley Palmer. 
To serve one year .—Charles B. Penrose, M. D., LL. D., Ph. D., 
Charles Morris, William E. Hughes, M. D., Roswell C. Williams, 
Jr. 
Councillor 
George Vaux, Jr. 
