THE LIBEARY. 



659 



Number of hooks iorroiced for use outside of the main Library '^ for the fiscal 



years 1901 to 1911. 



> These figures represent the number of books taken from the main Library for use in the offices of the 

 department. 



As has been pointed out in previous reports, the above statistics 

 indicate only in part the extent to which the Library was used. 

 The figures do not inchide (1) a record of the circulation of single 

 unbound numbers; (2) a record of the use of the books deposited 

 in the various bureaus and divisions of the department; (3) a 

 record of the books used in the Library. It has not seemed ad- 

 visable to attempt to collect statistics covering comple. .ly the use 

 to which the liibrary's various facilities are put, partly because of 

 the cost, time, and trouble involved, and partly on account of the 

 great inconvenience to users. In order, however, to give a more 

 adequate idea of the total use of the Library's collections, the sta- 

 tistics of the circulation of books and periodicals in the bureau 

 and division libraries, in so far as they have been kept, have in the 

 following table been added to the statistics of the main I^ibrary : 



Approximate number of hooks and periodicals borrowed from the main 

 Library and the bureau and division libraries} 



Main Library 



Bureau of Chemistry library 



Bureau of Entomology library 



T^'orest Service library 



Utireau of Plant Industry library 



Total 



36,250 

 7,5<;3 

 3,500 

 3,647 



14,984 



65.944 



Periodi- 

 cals. 



85,000 

 18,423 



800 

 26,223 



130,446 



• No statistics of the circulation of books and periodicals have been kept in the libraries of the Bureau 

 of Statistics, Bureau of Biological Survey, Dairy Division, Office of Public Roads, and Office of Experi- 

 ment Stations. 



The Bureau of Anunal Industry and the Bureau of Soils do not mamtam libraries, as their offices are 

 in close proximity to the main Library. 



"Wliile the figures given above are in part only estimates, it is 

 believed that they are in all cases very conservative estimates, and 

 that the total figures represent very inadequately the actual use of 

 the Library. No figures in regard to books used in the libraries 

 and not charged are included. 



INTERLIBRARY LOANS. 



The number of books borrowed from other libraries during the past 

 year, namely, 6,466, was surprisingly large, and was an increase of 

 1,765, or 33 per cent, over the previous year. Of the total number of 



