674 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



A luutial set of cards issued by llie Olliee of Ivxperiuieut Stations indexing 

 the State experiment station publications, namely those relating to entomology, 

 is on file in the Library. The Library also Iceeps up to date an index begun 

 years ago containing economic notes and out-of-the-way bits of information. 

 Here may be found book, periodical, and ne\vspai)er references to insects attack- 

 ing various fruits and cereals, articles on the habits of insects, on mimicry, 

 flight, maternal affection, melanism, spread of disease, etc. 



BEFKRENCE AND BIBLIOGRAPHICAL WORK. 



The demands upon the Library for help in locating and verifying references 

 needetl in connection with the preparation of the reports and bulletins of the 

 bureau are constant. Short bibliographical lists are also frequently prepared 

 by the librarian. During the i)nst winter a great deal of time was given to 

 the preparation of a bibliography of mosquitoes. The librarian makes and 

 keeps up to date an index of articles one page or more in length in all pub- 

 lications of the bureau. This is of service in correspondence and in locating 

 quickly descriptions of insects described by the bureau. The bibliography of 

 economic entomology formerly compiled in the bureau was discontinued in 1005 

 on account of lack of funds for printing; it has not been possible to continue 

 it recently, even in manuscript form, for lack of library assistance. ]\Liny of 

 the bureau staff, however, compile verj' complete bibliographies in their own 

 sub.iects which are available for reference. For example, the apicultural sec- 

 tion has a very complete bibUography of the honey-bee and apiculture. 



Mabel E. Colcokd, Librarian. 



LIBRARY OF THE FOREST SERVICE. 



There were added to the Forest Service library during the year 950 books 

 and pamphlets, making a total of 14.908 in all. All of the books on forestry 

 owned by the department Library are filed in the Forest Service library, with 

 the exception of the older volumes of a few sets of foreign forestry journals 

 not in frequent use. which are filed in the main Library. 



By far the greater number of the new books acquired during the year have 

 been free publications, received directly l)y the service. The Library has tried 

 to procure copies of everything issued in this country on the subject of forestry. 

 The Forest Service is on the mailing list of the State forestry officials. :ind 

 therefore receives their publications regularly. A great many other miscel- 

 laneous forestry publications come to the service free or are obtainable for the 

 asking. These generally find their way to the Library eventually, though not 

 always. It is recommended that whenever such publications are received by 

 the various offices of the service, they be sent at once to the Library, either for 

 permanent filing or to enable the librarian to ascertain their titles and publish- 

 ers, so that duplicate coi)ies may be requested. It will then be possible to have 

 a complete file in the Library of everything sent to the service on forestry 

 subjects. All of the publications are classified and catalogued as they are 

 received. The catalogue in the Forest Service library at present contains about 

 62,000 cards. 



In regard to books recommended for purchase by the department Library for 

 the use of the Forest Service library, it has been the aim of the library commit- 

 tee to recommend everything issued in English on the subject of forestry, all 

 standard works on forestry in foreign languages, and any other foreign books 

 for which there is some special need. In some instances books on other sub- 

 jects than forestry are ordered when there is a constant demand for them. The 

 resources of the main Library, the Library of Congress, and all of the other 

 Government libraries in the city, however, are at the disposal of the service 

 library ; hence books which are wanted only temporarily are borrowed from one 

 of them rather than purchased outright. 



PERIODICALS. 



The Library receives regularly GO forestry and trade journals, either through 

 the main Library by purchase or directly from the publishers. These are in- 

 dexed as they come in, and the index cards are filed in the card catalogue. A 

 number of the more important lumber journals are circulated throughout the 



