306 COPYRIGHT
laws of the United States or of this Act, the Librarian of Congress shall determine what books and other articles shall be transferred to the permanent collec- tions of the Library of Congress, including the law library, and what other books or articles shall be placed in the reserve collections of the Library of Congress for sale or exchange, or be transferred to other governmental libraries in the District of Colum- bia for use therein. Disposal of " (Sec. 60.) That of any articles undisposed of as deposits above provided, together with all titles and corre- spondence relating thereto, the Librarian of Congress and the register of copyrights jointly shall, at suitable intervals, determine what of these received during any period of years it is desirable or useful to preserve in the permanent files of the copyright office, and, after due notice as hereinafter provided, may within their discretion cause the remaining articles and other things to be destroyed : Provided, That there shall be printed in the Catalogue of Copyright Entries from February to November, inclusive, a statement of the years of receipt of such articles and a notice to permit any author, copyright proprietor, or other lawful claimant to claim and remove before the expiration of the month of December of that year anything found which relates to any of his productions deposited or registered for copyright within the period of years stated, not reserved or disposed of as provided for in this Act: And provided further, That no manuscript of an unpublished work shall be destroyed during its term of copyright without specific notice to the copy- right proprietor of record, permitting him to claim and remove it.
"(Sec. 61.) That the register of copyrights shall receive, and the persons to whom the services desig- nated are rendered shall pay, the following fees: For
