U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PLANT INDUSTRY— BULLETIN NO. 216. 



B. T. GALLOWAY, Chief of Bureau. 



THE RUSTS OF GRAINS IN THE UNITED 



STATES. 



BY 



E. M. FREEMAN, Collaborator, 



AND 



EDWARD C. JOHNSON, 



Pathologist in Charge of Cereal Disease Work, Office of Grain Investigations, 

 In Cooperation with the Minnesota Agricultural Experiment Station. 



Issued August 15, 1911. 



WASHINGTON: 



GOVERNMENT PRINTING OmOB. 



19U. 



