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 IXVESTIGATIOXS. 



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 Bacteriology and Mater Purifieation, Karl F. Kellerman, Physiologist in Charge. 



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



Charge. 

 Brug and Poisonous Plant Investigations and Tea Culture Investigations, Rodney H. True, 



Physiologist in Charge. 

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



TAXONO.MIC 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, I'athologist in Charge. 

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

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



HORTICULTURAL INVESTIGATIONS. 



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



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



In Charge. 

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



SEED .\ND PLANT INTRODUCTION INVESTIGATIONS. 



Seed and Plant Introduction and Distribution, Adrian .7. Pieters and 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, I'athologist in Charge. 

 Plant Introduction Gardens, Chico, Cal.. Palemon II. 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. 



SEED AND PLANT INTRODUCTION AND DISTRIBUTION. 

 SCIENTIFIC STAFF. 



A. J. Pieters, Botanist in Charge. 



David Fairchild, Agricultural Explorer, in Charge of Foreign Explorations. 

 W. W. Tracy, sr.. Superintendent of Testing Gardens. 



John E. W. Tracy, Assistant Superintendent of Testing Gardens, in Charge of Congres- 

 sional Seed Distribution. 

 O. W. Barrett, Assistant. 

 George W. Oliver, Expert. 



C. V. Piper, Agrostologist, in Charge of Forage-Crop Investigations. 

 J. M. Westgate, Assistant Agrostologist, in Charge of Alfalfa and Clover Introduction. 

 W. W. Tracy, jr.. Assistant Botanist. 

 Frauk N. Meyer, Agricultural Explorer. 

 Charles F. Wheeler, Expert. 

 A. B. Connor, Special Agent. 

 Nickolas Schmitz, Special Agent. 



John II. Tull, Special Agent, in Charge of Matting-Rush Investigations. 

 Harold T. Nielsen, Scientific Assistant in Agronomy. 



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