by United States. Congress. House. Committee on Mines and Mining

1912

by United States. Congress. Joint committee to investigate Interior dept. and Forestry service. [from old catalog]

1910

by United Mine Workers of America

1916

by United States Civil Service Commission

1901

by United States. Supreme Court

1913

by Pittsburgh Experiment Station (United States. Bureau of Mines)

1919

by United States. National Bureau of Standards

1928

by United States. Labor Dept

1902

by United Mine Workers of America

1906

by United Mine Workers of America

1907

by United States. Congress. Joint Committee to Investigate the Interior Department and Forestry Service

1910

by United States. Bureau of Labor Statistics

1916