"In view of the fact that, so far as known, no library in the United States, neither the Library of Congress, that of any State or Territory, nor any other public library, contains a complete set of the public documents of the General Government, it may be regarded as unfortunate that the provisions of the law are not availed of to the fullest extent. Fifty years hence it should not be as difficult for the student to find all the public documents of the present as it is for an investigator to-day to discover the records of a half-century ago."