ORGANIZATION OF THE UNITED STATES DEPARTMENT OF 
AGRICULTURE 
November 25, 1924 
Secretary of Agriculture Howard M. Gore. 
Assistant Secretary 
Director of Scientific Work E. D. Ball. 
Director of Regulatory Work Walter G.Campbell. 
Director of Extension Work C. W. Warburton. 
Solicitor R. W. Williams. 
Weather Bureau Charles F. Marvin, Chief. 
Bureau of Agricultural Economics Henry C. Taylor, Chief. 
Bureau of Animal Industry John R. Mohler, Chief. 
B ureau of Plant Industry William A. Taylor, Chief. 
Forest Service „ W. B. Greeley, Chief. 
Bureau of Chemistry C. A. Browne, Chief. 
B ureau of Soils Milton Whitney, Chief. 
Bureau of Entomology L. O. Howard, Chief. 
Bureau of Biological Surrey E. W. Nelson, Chief. 
Bureau of Public Roads Thomas H. MacDonald, Chief. 
Bureau of Home Economics Louise Stanley, Chief. 
Bureau of Dairying C. W. Larson, Chief. 
Fixed Nitrogen Research Laboratory F. G. Cottrell, Director, 
Office of Experiment Stations E. W. Allen, Chief. 
Office of Cooperative Extension Work C. B. Smith, Chief. 
Office of Publications L. J. Haynes, Director. 
Library Claribel R. Barnett, Librarian. 
Federal Horticultural Board C. L. Marlatt, Chairman. 
Insecticide and Fungicide Board J. K. Haywood, Chairman. 
Packers and Stockyards Administration ^Chester Morrill, Assistant to the 
Grain Futures Administration _ _ _ J Secretary. 
This bulletin is a contribution from 
Bureau of Chemistry C. A. Browne, Chief. 
Laboratory of Fruit and Vegetable Chem- 
istry E. M. Chace, in Charge. 
20 
additional copies 
OF THIS PUBLICATION MAY BE PROCURED FROM 
THE SUPERINTENDENT OF DOCUMENTS 
GOVERNMENT PRINTING OFFICE 
WASHINGTON, D. C. 
AT 
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