ORGANIZATION OF THE UNITED STATES DEPARTMENT OF AGRICULTURE WHEN THIS PUBLICATION WAS LAST PRINTED

Secretary of AgricultureHenry A. Wallace.
Under SecretaryRexford G. Tugwell.
Assistant SecretaryM. L. Wilson.
Director of Extension WorkC. W. Warburton.
Director of PersonnelW. W. Stockberger.
Director of InformationM. S. Eisenhower.
Director of FinanceW. A. Jump.
SolicitorSeth Thomas.
Agricultural Adjustment AdministrationChester C. Davis, Administrator.
Bureau of Agricultural EconomicsNils A. Olsen, Chief.
Bureau of Agricultural EngineeringS. H. McCrory, Chief.
Bureau of Animal IndustryJohn R. Mohler, Chief.
Bureau of Biological SurveyJ. N. Darling, Chief.
Bureau of Chemistry and SoilsH. G. Knight, Chief.
Office of Cooperative Extension WorkC. B. Smith, Chief.
Bureau of Dairy Industry O. E. Reed, Chief.
Bureau of Entomology and Plant QuarantineLee A. Strong, Chief.
Office of Experiment StationsJames T. Jardine, Chief.
Food and Drug AdministrationWalter G. Campbell, Chief.
Forest ServiceFerdinand A. Silcox, Chief.
Grain Futures AdministrationJ. W. T. Duvel, Chief.
Bureau of Home EconomicsLouise Stanley, Chief.
LibraryClaribel R. Barnett, Librarian.
Bureau of Plant IndustryKnowles A. Ryerson, Chief.
Bureau of Public RoadsThomas H. MacDonald, Chief.
Weather BureauWillis R. Gregg, Chief.

U. S. GOVERNMENT PRINTING OFFICE: 1934

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Transcriber Note

Illustrations move to prevent splitting paragraphs. Minor typos may have been corrected. Produced from files generously made available by USDA through The Internet Archive. All resultant materials are placed in the Public Domain.