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REPORT OF THE LIBRARIAN 
To tHe DrrecTor-in-CHIEF. 
Sir: I have the honor to submit the following report on 
the Library, covering the period from January 1, 1905, to 
January 1, 1906. 
A census of the library was taken December 23, and the 
number of bound volumes was then found to be 17,629, 
showing an increase for the year of 1,872 volumes. Of 
these, 860 were purchased from the special book fund, 187 
volumes were presented to the Garden, the remainder having 
been acquired by subscription and exchange or by deposit 
from other institutions. Of the number of unbound pamph- 
lets no estimate has been made. 
During the year 634 volumes have been bound, of which 
110 volumes are serials and pamphlets deposited at the Gar- 
den by Columbia University. 
The card-catalogue has been kept up to date; about 3,500 
written cards having been added to it. 
Additional exchanges have been arranged with other insti- 
tutions, and the number of journals, periodicals, reports and 
other publications now received in that way in exchange for 
Garden publications, or by subscription, is about 500 as 
against 455 during 1904. 
Accessions to the library, other than serials and regular 
exchanges, have been published monthly in the JouRNAL. 
A number of important series of scientific publications, 
such as the American Journal of Sctence, the Transactions 
of the Academy of Science of Philadelphia, the Bulletin de 
la Société Impériale des Naturalistes de Moscou, and others, 
amounting to 209 volumes, have been deposited by the Amer- 
ican Museum of Natural History and the New York Academy 
of Sciences. This, with the gift from yourself of a complete 
set of the publications of the New York Academy of Sciences, 
amounting to 37 volumes, about completes the collection of 
the more important American scientific series. The Trustees 
