BUREAU OF PLANT INDUSTRY. 



Physiologist <i>i<! Pathologist, and Chief of Bureau, Beverly T. Calloway. 



Physiologist and Pathologist, <ni<i issistant chief of Bureau, AJberl P. Woods. 



Laboratory of Plant Pathology, Erwln v. Bmlth, Pathologist in Charge. 



Fruit Disease Investigations, Merton r>. Walte, Pathologist In Charge. 



Investigations in Forest Pathology, Haven Metcalf, Pathologist In Charge. 



Cotton and Truck Diseases and Plant Disease Survey, William a. Orton, Pathologist in 

 Charge. 



Pathological Collections and Inspection Work, Flora w. Patterson. Mycologist in Charge. 



Plant Life History Investigations, Walter T. Swindle, Physiologist in Charge. 



Cotton Breeding Investigations, Archibald l>. Bhamel and Daniel N. Shoemaker, Physiolo- 

 gists in Charge. 



Tobacco Investigations. Archibald i). Bhamel, Wlghtman w. Garner, and Ernest H. 

 Bfathewson, in Charge. 



Corn Investigations, Charles P. Hartley. Physiologist in Charge. 



Alkali and Drought Resistant Plant Breeding Investigations, Thomas II. Kearney, Physi- 

 ologist in Charge. 



Soil Bacteriology ami Water Purification Investigations, Karl F. Kellerman, Physiologist 

 in Charge. 



Bionomic Investigations of Tropical and Subtropical Plants, Orator F. Cook, Bionomist 

 in Charge. 



Drug and Poisonous Plant and Tea Culture Investigations, Rodney II. True, Physiologist 

 in Charge. 



Physical Laboratory, Lyman J. Briggs, Physicist in Charge. 



Agricultural Technology, Nathan A. Cobb, Crop Technologist in Charge. 



Taxonomic and Range Investigations, Frederick V. Coville, Botanist in Charge. 



Farm Management, William J. Spillman, Agriculturist in Charge. 



Grain Investigations. Mark Alfred Carleton, Cerealist in Charge. 



Arlington Experimental Farm and Horticultural Investigations, Lee C. Corbett, Horticul- 

 turist in Charge. 



Vegetable Testing Gardens, William W. Tracy, sr., Superintendent. 



Sugar-Beet Investigations, Charles O. Townsend, Pathologist in Charge. 



Western Agricultural Extension, Carl S. Scofield, Agriculturist in Charge. 



Dry-Land Agriculture Investigations, E. Channing Chilcott, Agriculturist in Charge. 



Pomological Collections, Gustavus B. Brackett, Pomologist in Charge. 



Field Investigations in Pomology, William A. Taylor and G. Harold Powell, Pomologists 

 in Charge. 



Experimental Gardens and Grounds, Edward M. Byrnes, Superintendent. 



Foreign Seed and Plant Introduction, David Fairchild, Agricultural Explorer in Charge. 



Forage Crop Investigations, Charles V. Piper, Agrostologist in Charge. 



Seed Laboratory, Edgar Brown, Botanist in Charge. 



Grain Standardization, John D. Shanahan, Crop Technologist in Charge. 



Subtropical Garden, Miami, Fla., P. J. W 7 ester, in Charge. 



Plant Introduction Garden, Chico, Cal., W. W. Tracy, jr., Assistant Botanist in Charge. 



South Texas Garden, Broivnsville, Tex., Edward C. Green, Pomologist in Charge. 



Farmers' Cooperative Demonstration Work, Seaman A. Knapp, Special Agent in Charge. 



Seed Distribution (Directed by Chief of Bureau), Lisle Morrison, Assistant in General 

 Charge. 



Editor, J. E. Rockwell. 

 Chief Clerk. James E. Jones. 



Foreign Seed and Plant Introduction. 



scientific staff. 



David Fairchild, Agricultural Explorer in Charge. 



Frank N. Meyer and William D. Hills, Agricultural Explorers. 



Albert Mann, Expert in Charge of Special Barley Investigations. 



F. W. Clarke, Special Agent in Charge of Matting-Rush Investigations. 



Frederic Chisolm, Expert. 



Walter Fischer, R. A. Young, and H. C. Skeels, Scientific Assistants, 



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