ORGANIZATION OF THE UNITED STATES DEPARTMENT OF AGRICULTURE 
WHEN THIS PUBLICATION WAS LAST PRINTED 
SCOELATYSO, AGICULiNne. 2 ARTHUR M. HYDE. 
PUSSISEANE SCOT CLOT Y Se ok! ee ee eee R. W. DUNLAP. 
Director of Scientific Work_____-___-______- A. F. Woops. 
Director of Regulatory Work _________-____— WALTER G. CAMPBELL. 
Director of Extension Work. C. W. WARBURTON. 
Director of Personnel and Business Admin- W.W.STOCKBERGER. 
istration. 
DIXCCLOL OF ANfOTMAlOn. = ee eee M. S. EISENHOWER. 
OTIGTI OT eet ee Sa ee Se ee 2 ee EK. L. MARSHATL. 
BCWGCT BUTECUMs - Se ES ee es CHARLES F. MaArvIn, Chief. 
UTCMIL Of; AMMA INdtstry.—- ee JOHN R. MouHteEr, Chief. 
murcau of Dairyindusiry = = Ses O. E. REED, Chief. 
Bureau-0f Plant Mdisiy = 2 eee WILLIAM A. TAYLOR, Chief. 
TIOUESEAN CT TAC En ete Re ee 6 eee R. Y. Stuart, Chief. 
Bureau of Chemistry and Soils____---______- H. G. KnicHr, Chief. 
iBuread of Entomology —- 2s 2 Fee C. L. Maruatt, Chief. 
Bureau of Biological Survey_.____-__ --__— PAUL G. REDINGTON, Chief. 
BUC Of PUCiC TOUOS= 2 ke se tee eae THomMAS H. MACDONALD, Chief. 
Bureau of Agricultural Economics____--_---~ Nits A. OLSEN, Chief. 
Bureau of. Home Hoonomics=_—* === LOUISE STANLEY, Chief. 
Plant Quarantine and Control Administration. LEE A. StRoNG, Chief. 
Grain Futures Administration_______-______ J. W. T. Duvet. Chief. 
Food and Drug Administration_____________ WALTER G. CAMPBELL, Director of 
Regulatory Work, in Charge. 
Office of Experiment Stations_____________-- —_———_—., Chief. 
Office of Cooperative Extension Work____-__~ C. B. SmiTH, Chief. 
GURU eee CARTES GS MRE Ns Stes Pelee Oras cen rete CLARIBEL R. BARNETT, Librarian. 
This circular is a contribution from 
iBwseau of Plant indisig- SS Wii11AmM A. Taytor, Chief. 
Office of Mycology and Disease Survey_— C. L. SHEAR, Principal Patholo- 
gist, in Charge. 
60 
U. S. GOVERNMENT PRINTING OFFICE: 1931 
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