ORGANIZATION OF THE 
UNITED STATES DEPARTMENT OF AGRICULTURE. 
December 26, 1923. 
eexctary of Agriculiure..2 002. 5.- s2c0- be Henry C. WALLACE. 
mesttant Svcrelarys: snc. a eens Se Howarp M. Gore. 
Pirector of Scientific Work. -....+-2-s-22<--2- E. D. Bau. 
Director of Regulatory Work .........------- WALTER G. CAMPBELL. 
Director of Extension Work.........------- C. W. WARBURTON. 
EU WGHONS 4-2 ~~ eet eee eee L. J. Haynes, in Charge. 
Meraner TAUs EOL. StS eee ee ee ee CHARLES F, Marvin, Chief. 
Bureau of Agricultural Economics. .....---- Henry C. Taytor, Chief. 
Bureau of Animal Industry:>: 02. 5-2 JoHN R. Mouter, Chief. 
Pamems.of Plant Industry 22) 22a Wurm A. Taytor, Chief. 
PE WOETUICE Soe Se wa Net eee ae W. B. GREELEY, Chief. 
arerenias O) CHEMABIY. <2 ne ce eo eee C. A. Browne, Chief. 
Pema, OTIS), 620 e ae ee ee ee ee Mitton Waurrtney, Chief. 
Fea of PE atomology. 2. <2. 22 ss 2 eeee L. O. Howarp, Chief. 
Bureau of Biological Survey.......-..------- E. W. Netson, Chief. 
eae DIC RONG OC ik 3 ate ote Toomas H. MacDona.p, Chief. 
Bureau of Home Economics.......-.-.------ Louise STANLEY. 
Office of Experiment Stations.......-...---- E. W. Aen, Chief. 
Fixed Nitrogen Research Laboratory .....-.--- F. G. Corrrett, Director. 
Sp Ee Rae Efe pe aie ge ah CLARIBEL R. Barnett, Librarian. 
Federal Horticultural Board........--------- C. L. Martatr, CHAIRMAN. 
Insecticide and Fungicide Board............ J. K. Haywoop, Chairman. 
Packers and Stockyards Administration... .... CHESTER MorriLt, Assistant to the 
Grain Future Trading Act Administration . - i} Secretary. 
DEMO Ss 2. = don ee Ce Sao ae R. W. W1t1aMs. 
This bulletin is a joint contribution from 
weereatof Public Roads:. -2t2ee5- 25 2c ee Tuomas H. MacDona tp, Chief. 
Division of Agricultural Engineering..... S. H. McCrory, Chief. 
Bureau of Agricultural Economics ......-.-- Henry C. Taytor, Chief. 
Division of Farm Management.......... H. R. Toney, in charge. 
Bureau of Animal Industry............---- JoHN H. Mouter, Chief. 
Animal Husbandry Division..........- E. W. SHEETS, Acting Chie. 
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