Benton E. Rothgeb

Milo, a valuable grain crop

Milo, a valuable grain crop

1922

Shallu, or "Egyptian wheat"

Shallu, or "Egyptian wheat"

1921

Standard broom corn

Standard broom corn

1918

Uses of sorghum grain

Uses of sorghum grain

1915

Kafir as a grain crop

Kafir as a grain crop

1913