1921] NATURAL SCIENCES OF PHILADELPHIA 539 



The following were elected members: T. Ellis Barnes, R. Dale 

 Benson, Jr., Mrs. Andrew Alexander Blair, Joseph Hall Bodine, 

 Mrs. Edward Bok, Dr. John B. Carson, John D. Carter, Wilson 

 Catherwood, Charles D. Clark, Alexander Brown Coxe, Mrs. 

 James H. R, Cromwell, George K. Crozer, Jr., Edwin S. Dixon Jr., 

 Archibald M. L. duPont, E. Paul duPont, Thomas Langdon 

 Elwyn, William Newbold Ely, Mrs. Stanley G. Flagg, Jr., C. F. 

 Fox, Mrs .Eva. B. Gadsby, Thomas S. Gates, John Gilbert, George 

 L. Harrison, Mrs. Charles W. Henry, John C. Holinger, Wharton 

 Huber, Charles F. Jenkins, Dr. Victor A. Loeb, C. Christopher 

 ]\Iorris, Dr. Francis W. Pennell, Thomas Robins, John ^Y. Schell, 

 ]\Iiss Hepsey Norris Wells, Dr. D. H. Wenrich, Dr. Arthur Dewitt 

 Whedon, Walter Wheeler. 



The Publication Committee reported the receipt of the follow- 

 ing papers for the Proceedings: 



"The Chromite Deposits of the State Line Serpentines," by 

 Samuel G. Gordon. 



"Notes on Hemibranchiate and Lophobranchiate Fishes," by 

 Henry W. Fowler. 



"Notes on the Radula of the Helicinidae, " by H. Burrington 

 Baker. 



"Plant Indicators of Soil Types," by Arthur Pierson Kelley. 



"Notes on the Mollusks of the Colorado Desert, I," by S. Still- 

 man Berry. 



"Some Sharks' Teeth from the California Pliocene," by David 

 Starr Jordon. 



December 20. 



The President, John Cadwalader, A.M., LL.D., in the Chair. 



Twenty-six persons present. 



Officers, Councillors, and members of the Committee on Accounts 

 were elected for the ensuing year as follows: 



President John Cadwalader, A.M., LL.D. 



Vice-Presidents Edwin G. Conklin, Ph.D. 



Henry Skinner, M.D., Sc.D. 



Recording Secretary James A. G. Rehn. 



Corresponding Secretary J. Percy Moore, Ph.D. 



Treasurer George Vaux, Jr. 



Librarian Spencer Trotter, M.D. 



