120 REPORT OF THE SECRETARY. 



any books now actnally in the office of t.lie editor. All books and other matter not 

 in the sectional library shall bo at all times subject to recall by the librarian. 



9i. The librarian will be expected to exercise his discretion as to the books to be 

 withdrawn from the Congressional Library, but will (in the absence of special cause 

 to the contrary) recall any book upon receiving a written request for the same. 



10. The librarian shall annually, or oftener, report to the Assistant Secretary, in 

 charge of the library, any defective series^ any missing books, or any new serials, or 

 books which are specially desirable. 



REGULATIONS CONCERNING ENTRY AND ACKNOWLEDGMENT OF BOOKS. 



11. All books, jiamphlets, periodicals, maps, and other publications acquired by 

 the Smithsonian Institution through exchange or donation or purchase shall be 

 separately entered by the librarian, who shall prepare .i reference list, with the aid 

 of which he Shall immediately upon their receipt from the chief clerk divide them 

 into two classes, one of which is to be fully entered within a day of its receipt ; the 

 other to be fully entered in any case at some time within the current week. 



12. It shall be an invariable rule that such a full entry, to consist of both a day- 

 book and a ledger-account entry, shall be made within the above-specified time for 

 every separate book, or pamphlet or map, without exception ; but it is understood 

 that this ledger account may be in the form of a card catalogue. 



13. Against every title there shall be entered in the day-book the letter "C" 

 (Smithsonian Library, deposited in Library of Congress), or "G" (Smithsonian Li- 

 brary, deposited with Surgeon General), or " I " (Smithsonian Library, deposited at the 

 Institution) ; and it shall be the duty of the librarian to see that all books of the first 

 class are prepared for delivery to the Librarian of Congress within the current week. 



14. The librarian shall notify the exchange department within the current week of 

 any new correspondent on his books, and shall also acknowledge receipt to the senders 

 or donors of every article at stated times, at intervals of not more than a year, and 

 shall make a record of such entry, with the date of acknowledgment opposite to the 

 entry of the work in question. 



15. It shall be the dutj' of the librarian at .ill times to hold these books open to the 

 inspection of the Librarian of Congress, and to report to him the place and condition 

 of any work under his charge in answer to any specific inquiry. 



16. In addition to the books which are included in the Smithsonian deposit in the 

 Library of Congress, and so stamped, there are certain books procured by the Smith- 

 sonian Institution for use in the National Museum. These shall be distinctively 

 marked ; and it is understood that while they form no jjart of the above-described 

 books of the Smithsonian deposit in the Library of Congress, they are in other re- 

 spects to be treated in accordance with the above regulations. No book or chart 

 belonging to the Smithsonian Institution is exempt from them unless procured for 

 the specific use of an officer of the Smithsonian, as above designated, and distinctively 

 stamped as belonging to his office. 



The above rules will take effect on and after this date. 



S. P. Langley, 

 Assistant Sec/i'etarij, in charge of Library. 



Note (added December 3, 1887). — Under the last clause come books purchased es- 

 pecially for the office of the Secretary, Assistant Secretary, or chief clerk, forming 

 "office libraries," and for these it is understood that the librarian's responsibility 

 ceases when he has distinctively stamped each, entered it distinctively on the card 

 catalogue, and also in a separate list catalogue. Indispensable books of reference in 

 exchange department, etc.^ form part of chief clerk's office library. 



S. P. Langley, 



Secretary. 



