ORGANIZATION OF THE 
UNITED STATES DEPARTMENT OF AGRICULTURE. 
XoTember 27, 1923. 
Secretary of Agriculture Henry C. Wallace. 
Assistant Secretary Howard M. Core. 
Director of Scientific Work E. D. Ball. 
Din <tor of Regulatory Work Walter G. Campbell. 
Director of Extension Work C. \v. Wabbubton. 
Solicitor R. W. Williams. 
Weather Bureau Charles F. Marvin, Chief. 
Bureau of Agricultural Economics Henry C. Taylor, Chief. 
Bureau of Animal Industry John It. Mohleb, Chief. 
Bureau of Plant Industry William A. Tayi.o::. Chief. 
Forest Service W. B. Greeley, Chief. 
Bureau of Chemistry C. A. Browne, Chief. 
Bureau of Soils Milton Whitney, Chief. 
Bureau of Entomology L. O. Howard. Chief. 
Bureau of Biological Surrey E. W. Nelson, Chief. 
Bureau of Public Roads Thomas II. MacDonald, Chief. 
Bureau of Home Economics Louise Stanley, Chief. 
Office of Experiment stations E. W. Allen, chief. 
Fixed Nitrogen Research Laboratory F. G. CoTTBELL, Director. 
Publications L. J. Haynes, in Charge. 
Library Claribel K. Barnett, Librarian. 
Federal Horticultural Board C. L. Marlatt, Chairman. 
Insecticide and Fungicide Hoard J. K. Haywood, Chairman. 
Packers and Stockyards Administration ) Chester Morrill, Assistant to the 
drain Future Trading Act Administration.) Secretary. 
Office of the Solicitor R. W. Williams, Solicitor. 
This bulletin is a contribution from 
Bureau of Entomology L. O. Howard. Chief. 
Fruit Insect Investigations .. A. L. Quaintance, Entomologist 
■in Charge. 
Bureau of Plant Industry W. A. Taylob, Chief. 
Drug, Poisonous, and Oil Plant In- W. W. Stockbebgeb, in Charge. 
vestigations. 
62 
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