ORGANIZATION OF THE UNITED STATES DEPARTMENT OF AGRICULTURE 

 WHEN THIS PUBLICATION WAS LAST PRINTED 



Secretary of Agriculture Henry A. Wallace. 



Under Secretary M. L. Wilson. 



Assistant Secretary Harry L. Brown. 



Coordinator of Land Use Planning and Direc- M. S. Eisenhower. 

 tor of Information. 



Director of Extension Work C. W'. Warbtjrton. 



Director of Finance W. A. Jump. 



Director of Personnel .__ Roy F. Hendrickson. 



Director of Research James T. Jardine. 



Solicitor Mastin G. White. 



Agricultural Adjustment Administration H. R. Tolley, Administrator. 



Bureau of Agricultural Economics A. G. Black, Chief. 



Bureau of Agricultural Engineering S. H. McCrory, Chief. 



Bureau of Animal Industry John R. Mohler ; Chief. 



Bureau of Biological Survey -I Ira X. Gabrielson, Chief. 



Bureau of Chemistry and Soils- Heney G. Knight, Chief. 



Commodity Exchange Administration J. W. T. Dtjvel, Chief. 



Bureau of Dairy Industry O. E. Reed, Chief. 



Bureau of Entomology and Plant Quarantine- Lee A. Strong, Chief. 



Office of Experiment Stations James T. Jardine, Chief. 



Farm Security Administration- W. W. Alexander, Administrator. 



Food and Drug Administration Walter G. Campbell, Chief. 



Forest Service Ferdinand A. Silcox, Chief. 



Bureau of Home Economics Loeise Stanley, Chief. 



Library Claribel R. Barnett, Librarian. 



Bureau of Plant Industry E. C. Auchter, Chief. 



Bureau of Public Roads--- Thomas H. MacDonald, Chief. 



Soil Conservation Service I H. H. Bennett, Chief. 



Weather Bureau Willis R. Gregg, Chief. 



This circular is a contribution from 



Forest Service Ferdinand A. Silcox, Chief. 



Research Divisions C. L. Forsling, Assistant Chief in 



Charge. 

 52 



II. S. GOVERNMENT PRINTING OFFICE: 1938 



