[Cir. 113] 



2 



BUREAU OF PLANT INDUSTRY. 



rhief of Bureau, Beverly T. Galloway. 

 Assistant Chief of Bureau, William A.Taylor. 

 Editor, J . E. Rockwell. 

 chief Clerk, James E. Jones. 



ADDITIONAL COPIES of this publication 

 11 may be procured from the Superintend- 

 ent of Documents, Government Printing 

 Office, Washington, P. C, at 5 cents per copy 



