1918.] NATURAL SCIENCES OF PHILADELPHIA. 347 



REPORT OF THE CORRESPONDING SECRETARY. 



The following scientific men^ all Americans, were elected corre- 

 spondents: John Henry Comstock, Herbert Spencer Jennings, 

 Frank Rattray Lillie, Alfred Goldsborough Mayor, John Campbell 

 Merriam, George Howard Parker, and Charles Richard Van Hise. 



During the course of the year President Charles R. Van Hise and 

 Prof. Samuel W. Williston died. It is probable that the interruption 

 of correspondence with European countries prevented the verifica- 

 tion of the reported deaths of others. 



Foreign correspondence, which has been steadily decreasing dur- 

 ing the progress of the war, fell this year to its lowest ebb. 



Invitations were received to participate in the celebration of the 

 semi-centennial of the founding of the Kansas Academy of Science 

 and of the two-hundred-and-fiftieth anniversary of the University 

 of Lund. Prof. Samuel W. Williston was appointed a delegate to the 

 former and a letter of congratulation sent to the latter. 



From the Academie des Sciences, Belles-Lettres et Artes de 

 Rouen was received a copy of a resolution passed at a fete held at 

 the Academy on July Fourth expressing admiration for the course, 

 material and moral, taken by the United States and its President 

 "in defense of the Liberty, Law, Justice and Civilization of the 

 World". A letter of similar import was received from Emile Riviree, 

 a correspondent of the Academy. 



Inquiries for information were answered as usual. 



Statistics of the correspondence follow: 



Communications received : 



Acknowledging the receipt of the Academy's publications 69 



Transmitting publications to the Academy , 30 



Requesting exchanges or the supply of deficiencies 6 



Invitations to learned gatherings, celebrations, etc 2 



Notices of deaths of scientific men 2 



Circulars concerning the administration of scientific and educational 



institutions, etc 8 



Photographs and biographies of correspondents 3 



Letters from correspondents I eg 



Miscellaneous letters f 



Total received 176 



