

^ RECEIVED 



^ teAYl8B44 ^ 



t' 



Q\-^arC^ 



Issued May 4, 1908. 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF PLANT INDUSTRY— Circular No. 7. 



B. T. GALLOWAY, Chief of Bureau. 



THE FIELD TREATMENT OF 

 TOBACCO ROOT-ROT. 



LYMAN J. BRIGGS, 

 Physicist in Charge of Physicat. Laboratory. 



39996—08 



WASHINGTON : GOVERNMENT PRINTING OFFICE 



