ORGANIZATION OF THE 
UNITED STATES DEPARTMENT OF AGRICULTURE. 
August 21, 1924. 
Secretary of Agriculturesuo 2 +S _ Henry C. WALLACE. 
FESSESLONTL SOCT CLOT Ga Sate ee YE Howarp M. Gore. 
tsrecier of Scientific Work EY DBAs. 
Director of Regulatory Work__—_—-__~___. WALTER G. CAMPBELL. 
Director of Extension Work______--_____- C. W. WARBURTON. 
SpieemtOr onc cee PE ee a eret R. W. WILLIAMS. 
Wieaiter Bry ed U2) Ss eos dy Ss ee CHARLES F. MArvINn, Chief. 
Bureau of Agriculiural Economics_____-~- Henry C. Taytor, Chief. 
Bureau of Animal Industry_____------—~ —__ JOHN R. MouHLER, Chief. 
Bureau ‘of Plant ‘industry= >: Se ee WILLIAM A. Taytor, Chief. 
mearest: ‘Ser vree 2-8 2S ee ee W. B. GREELEY, Chief. 
Sea: OF CREMIStTY 6 5 te eee _ C. A. Browne, Chief. 
Puerco; Sows 72 / Ses too seer oe MILTon WHITNEY, Chief. 
Bureau of Entomology__—~—-—=-- + = = L. O. Howarp, Chief. 
Bureau of Biological Survey____—_-.__-____- . E. W. NEtson, Chief. 
Bureau of Public Roads.2. £- 3) ee THoMAS H. MAcDoNAtLp, Chief. 
Bureau of Home Economics__~—----~~-~~-- LouIsE STANLEY, Chief. 
Bureau oP Doiryng. eee eee C. W. Larson, Chief. 
Fized Nitrogen Research Laboratory____-~-- F. G. CoTTrELu, Director. 
PAUDRCCTHONS EELS BES 1 See ee ee L. J. Haynes, Director. 
PaAbrary Chap ES BAe eee 
Federal Horticultural Board —_-2 3 _- C. L. Maruatt, Chairman. 
Insecticide and Fungicide Board________~_- J. K. Haywoop, Chairman. 
Packers and Stockyards Administration____| CHESTER Morrix1, Assistant to the 
Grain Futures Administration___________ | Secretary. 
This bulletin is a contribution from 
Bureau of Biological Survey_____________. K. W. NEtson, Chief. 
Division of Biological Investigations_._. BE. A. GoLDMAN, Jn Charge. 
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