ORGANIZATION' OF THE 
UNITED STATES DEPARTMENT OF AGRICULTURE 
January 27, 1927 
Secretary of Agriculture W. M. Jardixe. 
Assistant Secretary R. W. Duxlap. 
Director of Scientific Work A. F. Woods. 
Director of Regulatory Work Walter G. Campbell. 
Director of Extension Work C. W. Warbuetox. 
Director of Information Xelsox Antrim Crawford. 
Director of Personnel and Business Adminis- W. W. Stockbebgee. 
t rat ion. 
Solicitor R. W. Williams. 
Weather Bureau Charles F. Mabvtn, Chief. 
Bureau of Agricultural Economics Lloyd S. Tenny, 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. Browxe, Chief. 
Bureau of Soils aItltox Whitxey, Chief. 
Bureau of Entomology L. O. Howard, Chief. 
Bureau of Biological Survey E. W. Nelson, Chief. 
Bureau of Public Roads Thomas H. MacDoxald, Chief. 
Bureau of Home Economics Louise Staxley, Chief. 
Bureau of Dairy Industry C. W. Larsox, Chief. 
Office of Experiment Stations E. W. Allen, Chief. 
Office of Cooperative Extension Work C. B. Smith, Chief. 
Library Clartbel R. Barxett, Librarian. 
Federal Horticultural Board C. L. Marlatt, Chairman, 
Insecticide and Fungicide Board J. K. Haywood, Chairman, 
Packers and Stockyards Administration Johx T. Caixe III. in Charge. 
Grain Futures Administration J. W. T. Dtjtel, in Charge. 
This bulletin is a contribution from 
Bureau of Entomology L. O. Howard. Chief. 
Investigations of Cereal and Forage In- W. H. Larrimer. in Charge. 
155 
additional copies 
OF THIS PUBLICATION MAY BE PROCURED FROM 
THE SUPERINTENDENT OF DOCUMENTS 
GOVERNMENT PRINTING OFFICE 
"WASHINGTON, D. C. 
AT 
35 CENTS PER COPY 
V 
