BUREAU OF PLANT INDUSTRY. 



Physiologist and Pathologist, and Chief of Bureau, Beverly T. Galloway. 



Physiologist and Pathologist, and Assistant Chief of Bureau, Albert F. Woods. 



Laboratory of Plant Pathology, Erwin F. Smith, Pathologist in Charge. 



Fruit Disease Investigations, Merton B. Waite, 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. Swingle, Physiologist in Charge. 



Cotton Breeding Investigations, Archibald D. Shamel and Daniel N. Shoemaker, Physiolo- 

 gists in Charge. 



Tobacco Investigations, Archibald D. Shamel, Wightman W. Garner, and Ernest H. 

 Mathewson, in Charge. 



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



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

 ologist in Charge. 



Soil Bacteriology and 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 H. 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, Horti- 

 culturist 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. Wester, in Charge. 



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



South Texas Garden, Brovmsville, 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. 



Bionomic Investigations of Tropical and Subtropical Plants, 

 scientific staff. 

 O. F. Cook, Bionomist in Charge. 

 G. N. Collins and F. L. Lewton, Assistant Botanists. 

 H. Pittier, J. H. Kinsler, and A. McLachlan, Special Agents. 

 C. B. Doyle and R. M. Meade, Scientific Assistants. 

 145 



2 Withdrc 



f£87 *0 



