ORGANIZATION OF THE UNITED STATES DEPARTMENT OF AGRICULTURE 

 WHEN THIS PUBLICATION WAS LAST PRINTED 



Secretary of Agriculture Heney A. Wallace. 



Assistant Secretary Rexfoeo G. Tugwell. 



Director of Scientific ^Vork A. F. W^oods. 



Director of Extension TForA; C. W. Waebueton. 



Director of Personnel and Business Adminis- W. W. Stockbeegee. 

 tration. 



Director of Information M. S. Eisenhower. 



Solicitor Seth Thomas. 



Bureau of Agricultural Economics Nh,s A. Olsedst, Chief. 



Bureau, of Agricultural Engineering S. H. McCeoey, Clvief. 



Bureau of Animal Didustry John R. Mohlee, Chief. 



Bureau of Biological Survey Paul G. Redington, Chief. 



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



Office of Cooperative Extension Work C. B. Smith, Chief. 



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



Bureau of Entomology Lee A. Steong, Chief. 



Office of Experiment Stations James T. Jaedine, Chief. 



Food and Drug Administration W\\ltee G. Campbell, Chief. 



Forest Service R. Y. Stuaet, Chief. 



Grain Futures Admdnistration J. W. T. Dtj\t:l, Chief. 



Bureau of Home Economics Louise Stanley, Chief. 



Lil)rary Claeibel R. Baenett, Librarian. 



Bureau of Plant Industry William A. Tayloe, Chief. 



Bureau of Plant Quarantine A. S. Hoyt, Acting Chief. 



Bureau of Puhlic Roads Thomas H. MacDonald. Chief. 



Weather Bureau Chaeles F. Maevin, Chief. 



Agrieultu ra I Ad)ustmen t Administration^. 



JGeoege N. Peek, Administrator. 

 I , Coadministrator. 



This bulletin is a contribution from 



Bureau of Plant Industry William A. Tayloe, Chief. 



Division of Fruits and Vegetable Crops 

 and Diseases E. C. Auchtee, Principal Horti- 

 culturist, in Charge. 



71 



U.S. GOVERNMENT PRINTING OFFICE: 1933 



