1916.] NATURAL SCIENCES OF PHILADELPHIA. 613 



10 to May 1. Three were by Dr. Witmer Stone on wild bird life, 

 one by Dr. B. F. Royer on oral hygiene, four by Dr. H. A. Pilsbry 

 on shells and shell fish, three by Dr. Henry Skinner on insects, three 

 by Dr. Spencer Trotter on the wanderings of animals, and three by 

 Dr. Stone on the wild flowers of Pennsylvania and New Jersey. 



In addition, seven afternoon lectures were delivered to students 

 of the Girls' High School by Drs. Skinner, Pilsbry, Moore, and Stone 



The withdrawal of Mr. Delos Culver as a Jessup Fund Beneficiary 

 was reported. 



Edward J. Nolan, Recording Secretary. 



REPORT OF THE CORRESPONDING SECRETARY. 



The further decrease in foreign correspondence, due to the almost 

 complete cessation of receipts from central Europe, has resulted in a 

 smaller total of communications for 1916 than for many years. 



No new correspondents were elected, but the following named 

 died: Orville A. Derby, Elias Metschnikoff, Edgar A. Smith, Jose 

 M. Rovirosa, R. J. Lechmere Guppy, Sir Thomas Lauder Brunton 

 and Edgar A. Mearns. The decease of several other correspondents, 

 as one of the unfortunate results of the European War, has been re- 

 ported, but it has been impossible to secure satisfactory verification. 



There have been no international scientific congresses and few- 

 events of scientific importance in this country in which this Academy 

 was invited to participate. Invitations were received from the 

 Kitasato Institute in Tokyo, the City Club of Philadelphia, the 

 Philadelphia Electric Company, the American Branch of the League 

 to Enforce Peace, the California Academy of Sciences, the College of 

 Engineering of the LFniversity of Illinois and the committee in charge 

 of the fiftieth anniversary of the scientific activity of Alexander 

 Karpinsky. A letter of congratulation sent to Professor Karpinsky 

 elicited an appreciative response. 



Thanks were received also from the Ohio Academy of Sciences 

 for the appointment of a delegate and the sending of a congratulatory 

 message and from the American Ornithologists' Union for courtesies 

 received during the recent meeting in the Academy's building. 



Miscellaneous correspondence was conducted as usual. 



Statistics of the correspondence transacted follow: 



