ORGANIZATION OF THE UNITED STATES DEPARTMENT OF 

 AGRICULTURE. 



Secretary of Agriculture Henry C. Wallace. 



Assistant Secretary C. TV. Plgsley. 



Director of Scientific Work E. D. Ball. 



Director of Regulatory Work . 



Weather Bureau Charles F. aIarvix, Chief. 



Bureau of Agricultural Economics Hexby C. Taylor. Chief. 



Bureau of Animal Industry , Johx R. aIohler. Chief. 



Bureau of Plant Industry William A. Tayloe, Chief. 



Forest Service W. B. Greeley, Chief. 



Bureau of Chemistry Walter G. Campbell. Acting Chief. 



Bureau of Soils , Miltox Whitney, Chief. 



Bureau of Entomology L. O. Howard, Chief. 



Bureau of Biological Surrey E. W. Nelson, Chief. 



Bureau of Public Roads Thomas H. aIacDoxald. Chief. 



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



Division of Accounts and Disbursements A. Zappoxe, Chief. 



Division of Publications Johx L. Cobbs, Jr., Chief. 



Library Claelbel R. Barxett. Librarian. 



States Relations Service _ A. C. True, Director. 



Federal Horticultural Board C. L. Marlatt, Chairman. 



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



Packers and Stockyards Administration— ] Chester Morrill, Assistant to the 



Grain Future Trading Act Administration^ Secretary. 



Office of the Solicitor R. W. Williams, Solicitor, 



This bulletin is a contribution from — 



Bureau of Biological Survey E. W. Nelsox. Chief. 



Division of Biological Investigations E. A. Goldmax, in Charge. 



16 ' 



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