Barrel and desk seed scarifiers
By: by W.M. Hurst, W.R. Humphries, and Roland McKee
Contributors: Humphries, W. R. (Walter Raymond), 1886-; McKee, Roland, 1880-
Series: Circular / United States Department of Agriculture -- no. 345; Circular (United States. Dept. of Agriculture) -- no. 345.
Publisher: U.S. Dept. of Agriculture
Published: 1935
Place of publication: Washington, D.C
Language: eng
Number of pages: 24
Subjects: Legumes; Seeds
Notes: Caption title.

"Contribution from Bureau of Agricultural Engineering."