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ORGANIZATION OF THE 
UNITED STATES DEPARTMENT OF AGRICULTURE. 
March 25, 1925. 
Secretary of Agriculture W. M. Jardine. 
Assistant Secretary Renick W. Dunlap. 
Director of Scientific Work E. D. Ball. 
Director of Regulatory Work Walter G.Campbell. 
Director of Extension Work C. W. Warburton. 
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 Home Economics Louise Stanley, Chief. 
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. 
Office of Publications L. J. Haynes, Director. 
Library Claribel R. Barnett, Librarian. 
Federal Horticultural Board C. L. Marlatt, Chairman. 
Insecticide and Fungicide Board J. K. Haywood, Chairman. 
Packers and Stockyards Administration G. N. Daggar, Acting in Charge. 
Grain Futures Administration J. W. T. Duvel, Acting in Charge. 
This bulletin is a contribution from 
Bureau of Dairying C. W. Larson, Chief. 
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