1885.] 



NATURAL SCIENCES OF PHILADELPHIA. 



415 



Miscellaneous letters, numbering thirteen, have been received, 

 and, when necessary, have been answered. 



The additions to the Museum will appear in the Curator's 

 report. The donors have received pr&mpt acknowledgment 

 through the Curator-in-charge, who has kindly acted for me. 



Respectfully submitted, 



George H. Horn, M. D., 



Corresponding Secretary. 



REPORT OF THE LIBRARIAN. 



During the year ending November 30, 1885, 4100 additions 

 have been made to the library of the Academy. This is an 

 increase of 678. over the growth of last year, and of 1097 over 

 that of 1883. The accessions have consisted of 986 volumes, 

 3047 pamphlets and parts of periodicals, and 67 maps. 



They have been derived from the following sources : — 



