EEPOET OF THE LIBRAMAN. 289 



Statistics of circulation (main library), fiscal years 1913, 1914, and 1915. 



Item. 



Largest number of books charged on any day 



Smallest number of books charged on any day... 

 Largest number of books charged in any month . 

 Smallest number of books charged in any month 



Average number of books charged daily 



Average number of books charged monthly 



1915 



268 



37 



4,260 



2,567 



134 

 3,412 



The statistics of circulation do not include a record of the books 

 and periodicals used in the main library and in the bureau, division, 

 and office libraries, but not charged at the loan desk. They also do 

 not include a record of the use of the books filed in the libraries of the 

 Bureau of Biological Survey, the Bureau of Crop Estimates, the 

 Office of Experiment Stations, Office of Markets and Rural Organi- 

 zation, and the office of the solicitor, all of which have collections of 

 considerable size but keep no statistics of cu-culation. 



INTERLIBRARY LOANS. 



The records of books lent by this library to institutions outside of 

 Washmgton, and also the records of books borrowed by this library 

 from other libraries, are given m the following tables : 



Record of books lent outside of Washington during the fiscal years 1911 to 1915. 



22814°— AGR 1915- 



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