ORGANIZATION OF THE UNITED STATES DEPARTMENT OF AGRICULTURE 
WHEN THIS PUBLICATION WAS LAST PRINTED 
Secretary of Agriculture_______ = d Henry A, WALLACE. 
Under Secretary 22 ae ee ReExrForD G. TUGWELL. 
Assistant Secretary______-—__ =i Bie _ M. L. WIxson. 
Director of Extension Work_.~------------_ C. W. WARBURTON. 
Director. of. Personnels ee W. W. STOCKBERGER. 
Director of Information_-__ __-—==eee ss M. S. EISENHOWER. 
DireCtor Of el inane a2 ea es See eee eee W. A. JUMP. 
NSOUGIIOT 2 2e= ee ke a See eee MASTIN G. WHITE. 
Agricultural Adjustment Administration_____ CHESTER C. Davis, Administrator. 
Bureau of Agricultural Heonomics___________ A. G. BLAck, Chief. 
Bureau of Agricultural Engineering_________- S. H. McCrory, Chief. 
Bureau of Animal Industry_________________ JOHN R. MoHLER, Chief. 
Bureau of Biological Survey_— oF a meas — IRA N. GABRIELSON, Chief. 
Bureau of Chemistry and Soils__-__________ H. G. Knigut, Chief. 
Bureau of Diiry Industy = ee O. E. ReEeEp, Chief. 
Bureau of Entomology and Plant Quarantine. Lem A. Strone, Chief. 
Office of Hxperiment Stations_______________ JAMES T. JARDINE, Chief. 
Food and Drug Administration— _.....__ WALTER G. CAMPBELL, Chief. 
Ronestaservice = zs __. FERDINAND A. Siuncox, Chief. 
Grain Futures Administration_________--__-_ J. W. I. DUvEL,;. Chief. 
Bureau of Home Heonomics__ — === Louise STANLEY, Chief. 
LAOTONY) 2 S252 ee 2 he 5 ee eee CLARIBEL R. BARNETT, Librarian. 
Bureau of Plant Industry____________-___-__ FReperick D. Ricury, Chief. 
Bureau of Lubic kos Se THomas H. MacDona.p, Chief. 
Sou, Conservation Service H. H. BENNETT, Chief. 
Weather Buredu___--_-_-—-— ake oes WHELs Re GRecG sO iver. 
This circular is a contribution from 
Bureau of Entomology and Plant Quarantine__. Ler A. Strone, Chief. 
Division of Bee Culture eee JAS. I. HAMBLETON, Principal Api- 
culturist, in Charge. 
14 
U.S. GOVERNMENT PRINTING OFFICE: 1936 
For sale by the Superintendent of Documents, Washington, D, C. - - - - - - Price 5 cents 
