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 iii Charge. 



Pla7it Breeding Investigations, Herbert J. Webber, Physiologist in Charge. 



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



Soil Bacteriology and ]]'atLr 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-Cidture Investigations, Rodney H. True, Physiologist 



in Charge. 

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

 Taxnnnmir Inrpstlqntinns, Frederick V. Coville, Botanist in Charge. 

 Farm M'liiih/f nr nt 1 n n sfiiiations, William J. Spillman, Agriculturist in Charge. 

 Grain Inn stinaf inns, Mark A. Carleton, Cerealist in Charge. 

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

 Sugar-Beet Investigations, Charles 0. Townsend, Pathologist in Charge. 

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

 Dry Land Agricidture, E. Channing Chilcott. Agriculturist in Charge. 

 PoninJnnii'nJ Collections. Gustavus B. Brackett, Pomologist in Charge. 



Fid'! Inn stl-nitions in Pomology, William A. Taylor and G. Harold Powell, Pomologists in Charge. 

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

 Seed a7id 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, Expert in Charge. 



3Iississipj)i 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 Cidture Farms, Seaman A. Knapp. Lake Charles, La., Special Agent in Charge. 



Editor, J. E. Rockwell. 

 Chief Clerk, James E. Jones. 



SEED AND PLANT INTRODUCTION .\ND DISTKIBUTION. 

 SCIENTIFIC STAFF. 



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



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



John E. W. Tracy, Assistarit Superintendent of Testing Gardens. 



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. 



Frank N. Meyer, Agricultural Explorer. 



Charles F. Wheeler, E.xpert. 



A. B. Connor, Special Agent. 



Nickolas Schmltz, Special Agent. 



John H. Tull, Special Agent, in Charge of Matting- Rush Investigafinnt^. 



Harold T. Nielsen, Scientific Assistant in Agronomy. 



Walter Fischer, Scientific Assistant, 



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