WASHINGTON:
GOVERNMENT PRINTING OFFICE.
1908.

BUREAU OF PLANT INDUSTRY.

• Physiologist and Pathologist, and Chief of Bureau, Beverly T. Galloway.
• Physiologist and Pathologist, 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 in Charge.
• Laboratory of Forest Pathology, Haven Metcalf, Pathologist in Charge.
• Cotton and Truck Diseases and Plant Disease Survey, William A. Orton, Pathologist in Charge.
• Plant Life History Investigations, Walter T. Swingle, Physiologist in Charge.
• Cotton Breeding Investigations, Archibald D. Shamel and Daniel N. Shoemaker, Physiologists in Charge.
• Tobacco Investigations, Archibald D. Shamel, Wightman W. Garner, and Ernest H. Mathewson, in Charge.
• Corn Investigations, Charles P. Hartley, Physiologist in Charge.
• Alkali and Drought Resistant Plant Breeding Investigations, Thomas H. Kearney, Physiologist in Charge.
• Soil Bacteriology and Water 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 Culture Investigations, Rodney H. True, Physiologist in Charge.
• Physical Laboratory, Lyman J. Briggs, Physicist in Charge.
• Crop Technology and Fiber Plant Investigations, Nathan A. Cobb, Crop Technologist in Charge.
• Taxonomic and Range Investigations, Frederick V. Coville, Botanist in Charge.
• Farm Management Investigations, William J. Spillman, Agriculturist in Charge.
• Grain Investigations, Mark Alfred Carleton, Cerealist in Charge.
• Arlington Experimental Farm, Lee C. Corbett, Horticulturist in Charge.
• Vegetable Testing Gardens, William W. Tracy, sr., Superintendent.
• Sugar-Beet Investigations, Charles O. Townsend, Pathologist in Charge.
• Western Agricultural Extension Investigations, Carl S. Scofield, Agriculturist in Charge.
• Dry-Land Agriculture Investigations, E. Channing Chilcott, Agriculturist in Charge.
• 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 N. Byrnes, Superintendent.
• Foreign Seed and 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, Crop Technologist in Charge.
• Subtropical Laboratory and Garden, Miami, Fla., Ernst A. Bessey, Pathologist in Charge.
• Plant Introduction Garden, Chico, Cal., W. W. Tracy, jr., Assistant Botanist in Charge.
• South Texas Garden, Brownsville, Tex., Edward C. Green, Pomologist in Charge.
• Farmers’ Cooperative Demonstration Work, Seaman A. Knapp, Special Agent in Charge.
• Seed Distribution (Directed by Chief of Bureau), Lisle Morrison, Assistant in General Charge.

Editor, J. E. Rockwell.
Chief Clerk, James E. Jones.

POISONOUS-PLANT INVESTIGATIONS.
SCIENTIFIC STAFF.

Rodney H. True, Physiologist in Charge.

• C. Dwight Marsh, Expert in Charge of Field Investigations.
• Albert C. Crawford, Pharmacologist.
• Arthur B. Clawson, Expert in Field Investigations.
• Ivar Tidestrom, Assistant Botanist, in Cooperation with Forest Service.