

V 



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. 



Drug-Plant, Poisonous-Plant, Physiological, and Feementation Investigations. 



scientific staff. 



Rodney H. True, Physiologist in Charge. 



A. B. Clawson, Heinrich Hasselbring, C. Dwight Marsh, and W. W. Stockberger, 



Physiologists. 

 H. H. Bunzel and James Thompson, Experts. 

 Carl L. Alsberg, H. H. Bartlett, Otis F. Black, Frank Rabak, and A. F. Sievers, 



Chemical Biologists. 

 W. W. Eggleston, Assistant Botanist. 

 .\lice Henkel, S. C. Hood, G. F. Klugh, Hadleigh Marsh, G. F. Mitchell, Ivar 



Tidestrom, and T. B. Young, Assistants. 

 G. Archie Russell, Special Agent. 



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