BUREAU OF PLANT INDUSTRY. 



PathoJo()isit and Phpsiolor/ist, and Chief of Bureau, Beverly T. Galloway. 



PatJioluf/i.st and PhysioUxjist, and Assistani Chief of Bureau, Albert F. Woods. 



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



Investioations of Diseases of Fruits. Merton B. Waite, I'athologist in Charge. 



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



Cotton and Tohaceo Breeding Inrestigations, Archibald D. Shamel, Physiologist in Charge. 



Corn Breeding Inrestigations, Charles P. Hartley, Physiologist in Charge. 



Alkali and Drought-Resistant Plant Breeding Inrestigations, Thomas II. Kearney, Physi- 

 ologist in Charge. 



Soil. Bacteriology and Water Purification Inrestigations, Karl F. Kellerman, Physiologist 

 in Charge. 



Biononiic Investigations of Tropical and Stthtropical 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 .T. Briggs, Physicist in Charge. 



Crop Technology Inrestigations, Nathan A. Cobb, Expert in Charge. 



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



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



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



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



{^ugnr-Bcet Inrestigations, Charles O. Townsend, Pathologist in Charge. 



^Yestern Agricultural Extension Investigations, Carl S. Scofleld. Agriculturist in Charge. 



Dry Land Agriculture Investigations, E. Channing Chilcott, Agriculturist in Charge. 



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



Field Inrestigations in Pomology, William A. Taylor and G. Harold Powell, Pomologists 

 in Charge. 



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



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



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



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



>S'ee(/ Laboratory, Edgar Brown, Botanist in Charge. 



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



Mississipi>i 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 Garden, Chico, Cah, August Mayer, Expert in Charge. 



South Texas Garden, Broirnsville. Tex., Edward C. Green. Pomologist in Charge. 



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



Editor, .T. E. Rockwell. 

 Chief Clerk, James E. Jones. 



2 



103 



