ORGANIZATION OF THE 

 UNITED STATES DEPARTMENT OF AGRICULTURE 



Secretary of Agriculture , Henry C. Wallace. 



Assistant Secretary Howard M. Gore. 



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 Milt6n 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. 



Office of Experiment Stations E. W. Allen, Chief. 



Fixed Nitrogen Research Laboratory F. G. Cottrell, Director. 



Publications L. J. Haynes, in Charge. 



Library ■. Claribel R. Barnett, Librarian. 



Federal Horticultural Board C. L. Marlatt, Chairman. 



Insecticide and Fungicide Board J. K. Haywood, Chairman. 



Packers and Stockyards Administration 1 Chester Morrill, Assistant to the 



Grain Futures Administration j Secretary. 



This bulletin is a contribution from 



Bureau of Entomology L. O. Howard, Chief. 



Cereal and Forage Insect Investigations- G. A. Dean, Entomologist in charge. 

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