id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-10184	Leonard, Ruth Shaw	Bibliographical Importance of Copyright Records	1946-01-01	8	.pdf	application/pdf	5476	297	67	I t was not until 1846 that the idea of se- curing copies of copyright works for use rather than merely for record was put into effect. At this time both the Smithsonian Institution and the Library of Congress were designated as depository libraries for copyright works.	cache/crl-10184.pdf	txt/crl-10184.txt