Verlag: Government Printing Office, Washington, D. C., 1930
Anbieter: Barry Cassidy Rare Books, Sacramento, CA, USA
Soft cover. Zustand: Collectible-Fine. Reprinted from JOURNAL OF AGRICULTURAL RESEARCH, 40 (#1 January 1, 1930). Pages 25-36, illustrations, tables, bibliography. Pamphlet in wrapper with former owner's initials in pencil on the cover "H.E.T.". Study of various varieties of wheat growth as to treatment with date of planting, temperature, and treatment with water and/or chemicals.