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By: Hillman, F. H. - Henry, Helen H., - United States. Bureau of Plant Industry. Division of Seed Investigations.Edition: RevisedPublication info: Washington, D.C, Division of Seed Investigations, Bureau of Plant Industry, U.S. Dept. of Agriculture, 1935Volume: 1935Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: