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

1912

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

1908

by United Mine Workers of America

1916

by United States. Congress. House. Committee on Ways and Means

1908

by United Mine Workers of America

1918

by United States. Superintendent of Documents

1991

by United States. Congress

1871

by United States. Congress. Senate. Committee on Public Lands

1917

by United States. Federal Trade Commission

1922

by United States. Congress

1918

by United States. Congress. Senate. Committee on Naval Affairs

1921

by United States. Congress. Senate. Committee on the Judiciary

1928