574 PROCEEDINGS OF THE ACADEMY OF [DeC, 



in Washington this month and to which the Honorable Charles D. 

 Walcott and Miss H. Newell Wardle were last year appointed 

 delegates. 



Letters thanking the Academy for courtesies extended during the 

 Convocation Week meetings of 1915 were received from the American 

 Association for the Advancement of Science, the Geological Society 

 of America, and the American Fern Society. 



Correspondence with individuals and institutions requesting 

 information on a variety of subjects was conducted as usual. 



Statistics of the correspondence transacted is shown in the follow- 

 ing table: 



Communications received : 



Acknowledging receipt of the Academy's publications 160 



Transmitting publications to the Academy 57 



Requesting exchanges or the supply of deficiencies 1 



Invitations to learned gatherings, celebrations, etc 9 



Notices of deaths of scientific men 10 



Circulars concerning the administration of scientific and educational 



inst it utions, etc 29 



Photographs and biographies of correspondents 4 



Letters from correspondents 13 



Miscellaneous letters 100 



Total received 383 



Communications forwarded: 



Acknowledging gifts to the library 1,155 



Requesting the supply of deficiencies ; 124 



Acknowledging gifts to the museum 134 



Acknowledging photographs and biographies 5 



Letters of sympathy or congratulation, addresses, etc 7 



Diplomas and notices of election of correspondents and delegates' creden- 

 tials 17 



Miscellaneous letters 180 



Annual reports and circulars sent to correspondents 204 



Total forwarded 1,826 



Respectfully submitted, 



J. Percy MoorE, Corresponding Secretary. 



REPORT OF THE LIBRARIAN. 



During the past year 564 volumes, 5,858 pamphlets and periodicals, 

 135 maps, 3 sheets, and 1 photograph, a total of 6,561, have been 

 added to the Library. 



These additions have been derived from the following sources: 



