ORGANIZATION OF THE 
UNITED STATES DEPARTMENT OF AGRICULTURE 
May 25, 1929 
r 
Secretary of Agriculture Arthur M. Hyde. 
Assistant Secretary R. W. Dunlap. 
Director of Scientific Work A. F. Woods. 
Director of Regulatory Work Walter G. Campbell. 
Director of Extension C. W. Warburton. 
Director of Personnel and Business Adminis- W. W. Stockberger. 
t rat ion. 
Director of Information M. S. Eisenhower. 
Solicitor R. W. Williams. 
Weather Bureau Charles F. Marvin, Chief. 
Bureau of Animal Industry John R. Mohler, Chief. 
Bureau of Dairy Industry O. E. Reed, Chief. 
Bureau of Plant Industry William A. Taylor, Chief. 
Forest Service R. Y. Stuart, Chief. 
Bureau, of Chemistry and Soils H. G. Knight, Chief. 
Bureau @f Entomology C. L. Marlatt, Chief. 
Bureau of Biological Survey Paul G. Redington, Chief. 
Bureau of Public Roads Thomas II. MacDonald, Chief. 
Bureau of Agricultural Economics Nils A. Olsen, Chief. 
Bureau of Home Economics Louise Stanley, Chief. 
Plant Quarantine and Control Adminis- C. L. Marlatt, Chief. 
t rat ion. 
Grain Futures Administration J. W. T. Duyel, Chief. 
Food, Drug, and Insecticide Administration— Walter G. Campbell, Director of 
Regulatory Work, in Charge. 
Office of Experiment Stations E. W. Allen, Chief. 
Office of Cooperative Extension Work C. B. Smith, Chief. 
Library Claribel R. Barnett, Librarian. 
This bulletin is a contribution from 
Forest Serrice R. Y. Stuart, Chief. 
National Forests, District 2 Allen S. Peck, District Forester. 
34 
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