BUREAU OF PLANT INDUSTRY. 



Chief of Bureau, Beverly T. Galloway. 

 Assistant Chief of Bureau, G. Harold Powell. 

 Editor, J. E. Rockwell. 

 Chief Clerk, James E. Jones. 



Crop Physiology and Breeding Investigations. 



SCIENTIFIC staff. 



Walter T. Swingle, Physiologist in Charge. 

 S. C. Mason, Arboriculturist. 

 G. P. Rixford, Expert. 

 E. M. Savage, Assistant Plant Breeder. 



Bruce Drummond, W. L. Flanery, E. W. Hudson, M. A. Downes, and Henry H. Boyle, 

 Assistants. 

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