ORGANIZATION OF THE 
UNITED STATES DEPARTMENT OF AGRICULTURE 
June 29, 1925 
Secretary of Agriculture W. M. Jardine. 
Assistant Secretary R. W. Dunlap. 
Director of Scientific Vi'ork E. D. Ball. 
Director of Regulatory Work Walter G. Campbell. 
Director of Extension TFor^- C. W, Warburton, 
Director of Information . Nelson Antrim Crawford. 
Direct(yr of Personnel and Business Ad- 
ministration W. W. Stockberger. 
Solicitor R. W. Williams. 
Weather Bureau Charles F. Marvin, Chief. 
Bureau of Agricultural Economics Henry C. Taylor, Chief. 
Bureau of Animal Industry John R. Mohler, Chief. 
Bureau of Plant Industry William A. Taylor, Chief. 
Forest Service : W. B. Greeley, Chief. 
Bureau of Chemistry C. A, Browne, Chief. 
Bureau of Soils Milton Whitney, Chief. 
Bureau of Entomology L. O. Howard, Chief. 
Bureau of Biological Survey E. W. Nelson, Chief. 
Bureau of Public Roads Thomas H. MacDonald, Chief. 
Bureau of Hmne Economics Lolt:se Stanley, CMef. 
Bureau of Dairying C. W. Larson, Chief. 
Fixed 'Nitrogen Research Laboratory F. G. Cottrell, Director. 
Office of Experiment Stations E. W. Allen, Chief. 
Office of Cooperative Extension Work C. B. Smith, Chief. 
Library Claribel R. Barnett, Librarian. 
Federal Horticultural Board C. L. Marlatt, Chairman. 
Insecticide and Fungicide Board J. K. Haywood, Chairman. 
Packers and Stockyards Administration John T. Caine, in Charge. 
Grain Futures Administration J. W. T. Duvel, Acting in Charge. 
This bulletin is a contribution from — 
Bureau of Plant Industry William A. Taylor, Chief. 
Office of Cereal Investigations C. R. Ball, Senior Agronomist in 
Charge. 
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