BUREAU OF PLANT INDUSTFY. 



SCIENTIFIC STAFF. 



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

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



PATHOLOGICAL INVESTIGATIONS. 



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 Water Purification, 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. 



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



AGRONOMIC INVESTIGATIONS. 



Farm Management, William .T. 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. 



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, Adrian J. 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 Gardens, Miami, Fla., Ernst A. Bessey, Pathologist in Charge. 

 Plant Introduction Gardens, 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. 



Farm Management Investigations. 



W. J. Spillman, Agriculturist in Charge. 



Scientific Staff.— F. G. Allison, Harmon Benton, D. A. Brodie, L. E. Carrier, J. S. Cates, 

 J. S. Cotton. M. A. Crosby. L. G. Dodge, E. J. Glasson. David Griffiths, Byron Hunter, 

 C. K. McClelland, H. B. McClure, R. A. Oakley, W. A. Peck, C. E. Quinn, S. M. Tracy-, 

 C. W. Warburton, J. A. Warren, J. M. Westgate. 



