ORGANIZATION OF THE 

 UNITED STATES DEPARTMENT OF AGRICULTURE 



October 3, 1929 



■ lary of Agriculture Arthur M. Hyde. 



fant Secretary R. W. Dunlap. 



Director of Scientific Work A. F. Wood-. 



Director of Regulatory Work Walter G. Campbell. 



Director of Extension Work C. W. Warburton. 



lor of Pert I Adminis- W. W. Sto< kbergkr. 



t rat ion. 



tor of Information M. S. Eisexhower. 



■ R. W. Williams. 



Weather Bureau Charles F. Marvin, Chief. 



Bureau of Animal Industry John R. Mohler. Cliff . 



Bureau of Dairy Industry O. E. Reed. Chief. 



Bureau of Plant Industry William A. Taylor. Chu 



Forest Servict R. Y. Stuart, Chief. 



B eau of Chemistry and Soils II. G. Knight, Chief. 



Bureau of Entomology C. L. Maklatt, Chief. 



Bureau of Biological Survey Paul G. Redington. Ch 



au of Public Roads Thomas II. AIacDonald. Chief. 



Bureau of Agricultural Economics Nils A. Olsen. Chief. 



Bureau <>f Honu Economics Louise Stanley'. Chief. 



Plant Quarant > mtrol Administration. C. L. Marlatt. Chief. 



Grain Future* Administration J. W. T. Duyel. Chief. 



Food. Drug, and Insecticide Administration— ."Walter G. Campbell. Director of 



Regulatory Work, in Charge. 



Office of Experiment station* E. W. Allen. Chief. 



Office of Cooperative Extension Work C. B. Smith, chief. 



Library Claribel R. Barnett, Librarian. 



This bulletin is a contribution from 



Bureau of Animal Industry John R. Mohler. Chief. 



Pathological Division .John S. Buckley, Chief. 



-NMENT PRINTING OFFICE: 1929 



