by United States. Superintendent of Documents

1995

by United States. Federal Board for Vocational Education

1924

by United States. Office of Education

1902

by United States. Department of Agriculture

1906

by United States. Congress. House. Committee on Agriculture

1924

by United States. Department of Agriculture

1882

by United States. Office of Experiment Stations

1913

by United States. Bureau of Foreign and Domestic Commerce

1918

by United States. Dept. of Agriculture

1923

by United States. President

1922

by United States. Department of Agriculture. Bureau of Statistics

1904

by United States. Congress. Senate. Committee on Appropriations

1924