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, I'athologist in Charge. 



Investigations of Diseases of Fruits, Merton B. Waitc, Pathologist in Charge. 



Laboratory of Forest Pathology, Haven Metcalf, Pathologist in Charge. 



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



Cotton and Tobaeco Breeding Investigations, Archibald D. Shamel, I'hysiologist in Charge. 



Corn Investigations, Charles P. Hartley, Physiologist in Charge. 



Alkali and Drought Resistant Plant Breeding Investigations, Thomas H. Kearney, Physi- 

 ologist in Charge. 



8oil Bacteriology and Water Purification Investigations, Karl F. Kellerman, Physiologist 

 in' Charge. 



Bionomic Investigations of Tropical and Subtropical Plants, Orator I'\ Ct>ok, Bionomist 

 in Charge. 



Drug and Poisonous Plant Investigations and Tea Culture Investigations, Rodney H. 

 True, Physiologist in Charge. 



Physical Laboratory, Lyman J. Briggs, I'hysicist in Charge. 



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



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



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



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



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



Sugar-Bect Investigations, Charles O. Townsend, Pathologist in Charge. 



Western Agricultural Extension Investigations. Carl S. Scofleld, Agriculturi.st in Charge. 



Dry-Land Agriculture Investigations, K. Channing Chilcott, Agriculturist in Charge. 



Pomological Collections, Gustavus B. Brackett, I'omologist in Charge. 



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

 in Charge. 



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



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



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 Standardisation, John D. Shanahan, Expert in Charge. 



Subtropical Laboratory and Garden, Miami, Fla., Ernst A. Bessey, Pathologist in Charge. 



Plant Introduction Garden, Chico, Cah, August Mayer, Expert in Charge. 



South Texas Garden, Brownsville, Tex., Edward C. (Jreen, Pomologist in Charge. 



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



Editor, J. E. Rockwell. 

 Chief Clerk, James E. Jones. 



Ill 

 2 



