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. 



Director of Extension Work C. W. W 7 arburton. 



Director of Finance W. A. Jump. 



Director of Information M. S. Eisenhower. 



Director of Personnel W. W. Stockberger. 



Director of Research Jambs T. Jardine. 



Solicitor Mastin G. W'hite. 



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 [ra N. Gabrielson . Chief. 



Bureau of Chemistry and Soils Henry G. Knight, Chief. 



Commodity Exchange Administration^ J. W. T. Duvel. Chief. 



Bureau oj 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 Louise Stanley, Chief. 



Library Claribel R. Barnett, Librarian. 



Bureau oj Plant Industry Frederick D. Richey, Chief. 



Bureau of Public Roads Thomas H. MacDonald, Chief. 



Soil Conservation Service H. H. Bennett, Chief. 



Weather Bureau Willis R. Gregg, Chief. 



This circular is a contribution from 



Bureau of Plant Industry Frederick D. Richey, Chief. 



Division of Fruit and Vegetable Crops E. C. Auchter, Principal Horticul- 

 and Diseases. turist, in Charge. 



11 



U. S. GOVERNMENT PRINTING OFFICE: 1937 



For sale by the Superintendent of Documents. Washington, D. C. - - - - Price 5 cents 



