BUREAU OF PLANT INDUSTRY. 



SCIENTIFIC STAFF. 



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

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



PATHOLOGICAL INVE.STIG ATION.S. 



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

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



PHYSIOLOGICAL INVESTIGATIONS. 



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



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



Soil Ba-cteriology and Water Purification. Karl F. Kellerman, Physiologist in Charge. 



Bionomic Inrestigitions of Tropical and Subtropical Plants, Orator F. Cook, Bionomist in Charge. 



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



in Charge. 

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



TAXONOMIC INVESTIGATIONS. 



Economic Collections, Frederick V. Coville, Botanist in Charge. 



AGRONOMIC INVESTIGATIONS. 



Farm Management, 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. Scofleld, Agriculturist in Charge. 

 Dry Land Agriculture, E. Channing Chilcott, Expert in Charge. 



HORTICULTURAL INVESTIGATIONS. 



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 



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

 Seed Laboratory, Edgar Brown, Botanist in Charge. 



SPECIAL LABORATORIES, GARDENS, AND FARMS. 



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 Gardens, Chico, Cal.. 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 LIFE HISTORY INVESTIGATIONS 

 SCIENTIFIC STAFF. 



Walter T. Swingle, Physiologist in Charge 

 Charles J. Brand, Assistant Physiologist. 

 Silas C. Mason, Special Agent. 



