ORGANIZATION OF THE 
UNITED STATES DEPARTMENT OF AGRICULTURE. 
October 19, 1923. 
Suecretary of Agriculture...........-.-.:-..-... Henry C. WALLACE. 
mssistant Secretary...............------..... Howarp M. Gore. 
mumrccur opocienitjic Work..........---.---.--- KE. D. Batt. 
Director of Regulatory Work..............-.-- WALTER G. CAMPBELL. 
eDerector of Extension Work..............----- C. W. WARBURTON. 
0 Le ae R. W. WILiiAMs. 
ERE 8S le ne CHARLES F, Marvin, Chief. 
Bureau of Agricultural Economics......--..-- Henry C. Taytor, Chief. 
murreaw of Animal Indusiry......-...-.-.-.-- JOHN R. Monuter, Chief. 
morcreor Plant Industry........-.....------ WiiuiAM A. Taytor, Chief. 
0 W. B. GREELEY, Chief. 
nS HPMISAIFY =... ----- = -- C. A. Browne, Chief. 
0 Se Mizton Wuitney, Chief. 
epureanu of Entomology..........---.---------- L. O. Howarp, Chief. 
Bureau of Biological Survey...........-------- E. W. Netson, Chief. 
emeneraet mie hoads.:._-. 2... 2....-.---- Tuomas H. MacDonatp, Chief. 
|Bureau of Home Economics........--.-------- LoutsE STANLEY, Chief. 
Office of Experiment Stations............--.--- E. W. ALLEN, Chief. 
Fixed Nitrogen Research Laboratory. .....----- F. G. Corrrety, Director. 
0 a Se L. J. Haynes, In charge. 
0 a SS Se CLARIBEL R. BARNETT, Librarian. 
Federal Horticultural Board...............-..- C. L. MAruett, Chairman. 
Insecticide and Fungicide Board............-. J. K. Haywoon, Chairman. 
Packers and Stockyards Administration.......-. eras MorriLL, Assistant to the 
Grain Future Trading Act Administration....) Secretary. 
This bulletin is a contribution from 
Rumen? Walt Rends....°.......-.-.-.-..- Tuomas H. MacDona.p, Chief. 
Division of Agricultural Engincering...-..- S. H. McCrory, Chief. 
23 
ADDITIONAL COPIES 
OF THIS PUBLICATION MAY BE PROCURED FROM 
THE SUPERINTENDENT OF DOCUMENTS 
GOVERNMENT PRINTING OFFICE 
WASHINGTON, D.C. 
AT 
5 CENTS PER COPY 
V 
