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ORGANIZATION OF THE UNITED STATES DEPARTMENT OF 
AGRICULTURE. 
Secretary of Agriculture............--.- pig NSS rs Henry ©. WALLACE, 
FASMALENL SOPOUBY =... oJ keen cto. DP AA ee C. W. Puesiey. 
Director of Scientific Work...-..-.- : EE Oar ee E. D. Bat. 
Director of Regulatory Work. .........--------- we 52 a, 
SET AEE) pe on a aE, Oe Pree. CHARLES F. Marvin, Chief. 
Bureau of Agricultural Economics... .-.-...--.- Henry C, Taytor, Chief. 
Bureau of animal Wndusirvy ..."- 2. - -_. 222. -2t 2 Joun R. Monuer, Chief. 
Bureau of Plant Tritustry? = 22.2! eS Wiii1am A. Taytor, Chief. 
SGnESY SOPHO UE Fel BF 0 2S W. B. GREELEY, Chief. 
Eiscau-of Chemisty ss .2 363. c5hc 2 oe Se WALTER G. CAMPBELL, Acting Chief. 
Papen of SOWg 2 os osc a5 ae oe os oe ...-.-..-. Mitton Wuirney, Chief. 
Burcatof-Pniomoloyy 2... <== = <---> - 5-8 L, O. Howarp, Chief. 
Bureau of Biological Survey...........:-------- E. W. Netson, Chief. 
Buscar oft aoe Roads: oot eset nie on THomas H. MacDonatp, Chief. 
Fixed Nitrogen Research Laboratory. ......-.--- FP. G. Cotrre.y, Director. 
Division of Accounts and Disbursements.......-- A. ZAPPONE, Chief. 
TM eeOM OL PUR RERHONS 22 oie a5 8 be ec neta Joun L. Conss, Jr., Chief. 
RU ES 5 as i ons wees ge et Oo EE CLARIBEL R. Barnett, Librarian. 
RRMA IE RAGS IETUICE. O05. 5 one oo sean eee A. C. True, Director. 
Federal Horticultural Board.................--- C. L. Mariatr, Chairman. 
Insecticide and Fungicide Board............... J. K. Haywoop, Chairman. 
Packers and Stockyards Administration........-.- gg ah MorriLu, Assistant to the 
Grain Future Trading Act Administration......5 Secretary. 
Oe OF TC SOWCH OR: ono ois wit Se wre oo ie ee R. W. WiiitaMs, Soticrror. 
This bulletin is a contribution from— 
Forest Service........ clk or ies Re eis W. B. Greetey, Chief. 
POCORN OF IAINGES Ge eo odie oo 23.02 Ree gate L. F. Knerp, in charge. 
PiUreae Oy -P GN INGUEDY |. o52. 22 onc eee teee Wi1Am A. Taytor, Chief. 
Investigations in Forest Pathology. ........ Haven Mercatr, in charge. 
367 
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