472 PROCEEDINGS OF THE ACADEMY OF [1890. 
Letters accompanying publications number thirty-one and indi¬ 
cate in great part the number received through the International 
Exchange. 
The demand for missing parts of our publications has been less 
during the past year than formerly, indicating the greater degree of 
safety in mail transmission. These deficiencies we have in every 
instance endeavored to supply. 
During the year eight correspondents have been elected and noti¬ 
fications sent. Acceptances have been received from nearly all. 
Formal notifications of the death of four correspondents have been 
received. 
With this, my fourteenth annual report, my official connection 
with the Academy in this position ceases. In conclusion I desire to 
return my thanks for the compliment paid me in the repeated elec¬ 
tions which have made my service so long. 
Respectfully submitted, 
George H. Horn, M. D., 
Corresponding Secretary. 
REPORT OF THE LIBRARIAN. 
The Librarian respectfully reports that the number of additions to 
the library of the Academy during the twelve months ending Nov. 
30,1890 amounts to 4179 ; composed of 424 volumes, 3651 pamphlets 
and parts of periodicals and 104 maps, engravings, photographs, etc. 
They were received from the following sources:— 
Societies,.1668 
I. V. Williamson Fund, . . . 892 
Editors,.845 
Authors.171 
Special Appropriation, . . . 114 
Roberts Le Boutillier, .... 79 
Wilson Fund,.42 
Geological Survey of Sweden, . 38 
Thomas Meehan,.36 
Chas. P. Perot,.25 
Stephen Parrish,.23 
U. S. Department of Agriculture, 23 
U. S. Department of the Interior, 23 
Geological Survey of Russia, . 17 
Geological Survey of Canada, 
Indian Museum,. 
Geological Survey of Minnesota, 
Geological Survey of Pennsylvania, 
U. S. War Department. . . . 
Geological Survey of New Jersey, 
Geological Survey of Kentucky, . 
H. B. M. Government, . . . 
Wm. W. Jefferis,. 
Australian Museum, .... 
Geological Survey of Brazil, . 
Isaac Norris. 
U. S. Fish Commission, ... 1 
Geological Survey of Roumania, 1 
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