by University of North Carolina (1793-1962). University Extension Division

1923

by University of Washington. Extension Service

1914

by University of Texas

1928

by Clemson University. Extension Service

1924

by University of Nevada, Reno

1918

by University of Nevada

1918

by University Interscholastic League (Tex.)

1929

by University of California Agricultural Extension Service

1921

by University of Kentucky. Cooperative Extension Service

1930

by University of Washington

1915

by University of the State of New York

1897

by University of Illinois. High school visitor

1922