BTIREAI OF PLANT INDl STRY. 



Ch!(f of Bureau, B-EVERhY T. Galloway. 

 A.sxhtant Cliirf of Bureau, G. Harold Powell. 

 Editor,!. E. Rockwell. 

 Chief Clerk, 3 AMES E. Jone.s. 



[Cir. 51] 

 2 



