ORGANIZATION OF THE UNITED STATES DEPARTMENT OF AGRICULTURE 
WHEN THIS PUBLICATION WAS LAST PRINTED 
Secretary of A griculiure 2 220 22 eee ea Artuur M. Hype. 
ASSTSLUNE SCCTELar iy Ae aes hd En EL R. W. DuNuwap. 
Direcior of Seventific W origencls ae ees A. F. Woops. 
Director of Regulatory Worle. = Sh ee WALTER G. CAMPBELL. 
Director-of. Extension Works 2 2m eb C. W. WARBURTON. 
Director of Personnel and Business Admin-, W. W. STOCKBERGER. 
istration. 
Director-of Pnformatrvon Le eee eee M. 8S. EISENHOWER. 
NOY OC} Ye ne PO aes SPAS Pa Sty! PPT a ire ee E. L. MARSHALL. 
Wieather; Bureawete aoe 22 eee eS CHARLES F. Marvin, Chief. 
Bureau of Animal. Indusiry2— ==. 2. eee JoHN R. Mouter, Chief. 
Bureau of Damyilndusiny 52) 2 oe O. E. REep, Chief. 
Bureauio, Plant Industry 32) ee eee Wiuiiam A. Tayior, Chief. 
Borest: Service: 2205 0 Br SR ae i a R. Y. Stuart, Chief. 
Bureau of Chemistry and Sotls____.-------- H. G. Knieut, Chief. 
Bureau-of Entomology sso 22 ene ee C. L. Maruatt, Chief. 
Bureau of Biological Survey_...----------- Paut G. Repineton, Chief. 
Bureau of Public Roads Sac ne ne Tuomas H. MacDonatp, Chief. 
Bureau of Agricultural Economics__-------- Nits A. OusEen, Chief. 
Bureau of Home Economics____.---------- LouvisE STanuey, Chief. 
Plant Quarantine and Control Administration. Lex A. Strone, Chief. 
Grain Futures Administration.__._--------- J. W. T. DuveEt, Chief. 
Food and Drug Administration_____------ WALTER G. CampsBeEtu, Director of 
Regulatory Work, in Charge. 
Office of Experiment Siations___....------- JAMES T. JARDINE, Chief. 
Office of Cooperative Extension Work__..---- C. B. Smiru, Chief. 
WTA F079) PaO ER AEP TENE, Nee Wek RIE Sg a AA CLARIBEL R. Barnett, Inbrarian. 
This publication is a contribution from 
POrest: SCRUICE SR Oe 8 we) ee R. Y. Stuart, Chief. 
BCOnCH OL. RESCATOl i: Chae SNe La he HARLE H. Cxiapp, Assistant For- 
ester, in Charge. 
Division of Range Research_-------- W. R. CHAPLINE, in Charge. 
214 
U.S. GOVERNMENT PRINTING OFFICE: 1931 
