BUREAU OF PLANT INDUSTRY. 



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



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



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



Investigations of Diseases of Fruits, Merton B. Waite, Pathologist in Charge. 



Plant Breeding Investigations, Herbert J. Webber, Physiologist in Charge. 



Plant Life History Investigations, Walter T. Swingle/Physiologist in Charge. 



Soil Bacteriology and ~\Yater 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 Investigations and Tea Culture Investigations, Rodney H. 



True, Physiologist in Charge. 

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

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

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

 Grain Investigations, Mark A. Carleton, Cerealist in Charge. 

 Arlington Experimental Farm, Lee C. Corbett, Horticulturist in Charge. 

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

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

 Dry Land Agriculture, E. Channing Chilcott, Expert 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. 

 Seed and Plant Introduction Investigations, David Fairchild, in Charge. 

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

 Seed Laboratory, Edgar Brown, Botanist in Charge. 

 Grain Standardization, John D. Shanahan, Expert in Charge. 



Mississippi Valley Laboratory , St. Louis, Mo., Hermann von Schrenk, Expert in Charge. 

 Subtropical Laboratory and Garden, Miami, Fla., Ernst A. Bessey. Pathologist in Charge. 

 Plant Introduction Garden, Chico, Gal., Palemon H. Dorsett. Pathologist in Charge. 

 Cotton Culture Farms, Seaman A. Knapp, Lake Charles, La., Special Agent in Charge. 



Editor, J. E. Rockwell. 

 Chief Clerk, James E. Jones. 



Plant Breeding Investigations. 



scientific staff. 



Herbert J. Webber, Physiologist in Charge. 



Alkali and Arid Plant Breeding: T. H. Kearney, Physiologist in Charge; L. L. Harter, 

 Scientific Assistant. 



Corn Breeding: C. P. Hartley, Assistant Physiologist in Charge; E. B. Brown, Scientific 

 Assistant. 



Cotton Breeding: D. A. Saunders and D. N. Shoemaker, Special Agents in Charge of Cot- 

 ton Laboratories, Waco, Tex. ; R. L. Bennett, in Charge of Cooperative Work. Texas 

 Agricultural Experiment Station ; S. M. Bain, in Charge of Cooperative Work, Tennes- 

 see Agricultural Experiment Station ; E. B. Boykin, Special Field Agent ; H. A. Allard, 

 Scientific Assistant. 



Oat and Potato Breeding: J. B. Norton, Assistant Physiologist in Charge. 



Tobacco Breeding: A. D. Shamel, Physiologist in Charge ; W. W. Cobey, Special Field 

 Agent ; W. W. Garner, Scientific Assistant ; W. H. Scherffius, Tobacco Expert. 



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