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By: United States. Bureau of Entomology and Plant Quarantine. - Hoyt, Avery S., - Wallace, Henry A. (Henry Agard), - United States. Department of Agriculture.Edition:Publication info: Washington, D.C, Bureau of Entomology and Plant Quarantine, December 15, 1938Volume: 1938Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: