The barrel seed scarifier
By: by W.M. Hurst, W.R. Humphries, and Roland McKee
Contributors: Humphries, W. R. (Walter Raymond), 1886-; McKee, Roland
Series: Leaflet -- no. 107; Leaflet (United States. Dept. of Agriculture) -- no. 107.
Publisher: U.S. Dept. of Agriculture
Published: 1934
Place of publication: Washington, D.C
Language: eng
Subjects: Legumes; Seeds; Agricultural machinery
Notes: Caption title.

Issued November 1934.