by Ohio

1912

by Ohio

1916

by Ohio Agricultural Experiment Station

1883

by Ohio Agricultural Experiment Station

1917

by Ohio Agricultural Experiment Station

1928

by Ohio Agricultural Experiment Station

1916

by Augustine Dawson Selby, Francis Marion Webster, J. Fremont Hickman, Ohio Agricultural Experiment Station, William James Green, H. O. McFadden

1896

by Ohio Agricultural Research and Development Center

1890

by Ohio State University. Alumni Association

1925

by Ohio State University. Cooperative Extension Service

1921

by Ohio

1921

by Ohio

1913