586 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



ican chemists for the past century, with a detailed enumera- 

 tion of their memoirs. 



NATIONAL PARK IN THE ISLAND OF MACKINAW. 



One of the enactments of the recent Congress in the inter- 

 est of the public was the setting aside of a large part of the 

 island of Mackinaw, Michigan, as a national park, all of the 

 land in that vicinity owned by the United States, with the 

 exception of a certain portion required for military purposes, 

 having been placed under the charge of the Secretary of 

 War for the purpose in question, with the condition that all 

 persons who shall settle on or occupy the same, excepting 

 under conditions specified, shall be considered trespassers, 

 and removed therefrom. It is made the duty of the Secre- 

 tary of War to establish such regulations as he may think 

 best for the proper protection and preservation of the trust. 

 He is to provide for the preservation of the timber, the min- 

 eral deposits, natural curiosities, etc. He may, at his dis- 

 cretion, grant leases for a term not exceeding ten years, at 

 places where the erection of buildings for the accommoda- 

 tion of visitors is desirable, and all the proceeds of said 

 leases are to be expended in the construction of roads and 

 bridle-paths. The wanton destruction of game and fish 

 found within the limits of the park is to be provided against, 

 and all trespassers are to be duly punished. 



ANNUAL REPORT OP THE LIBRARIAN OF CONGRESS. 



The annual report of the Librarian of Congress for 1874 

 has just been published. From this we learn that the addi- 

 tions during the year consisted of 15,405 books and 6272 

 parts of books and pamphlets, of which 1264 volumes and 

 1756 parts of volumes were received from the Smithsonian 

 Institution, and 6840 volumes by copyright. The total 

 number of copyrighted articles, including books, periodicals, 

 musical compositions, dramatic compositions, photographs, 

 engravings, and chromos, maps, charts, drawings, and prints, 

 amounted to 29,674. The copyright entries for the year ex- 

 ceeded those of the previous year by 931. The amount 

 paid into the Treasury on account of copyright fees was 

 $13,524 78. 



Mr. Spofford, the librarian, again calls the attention of 



