Bulletin No. 11. 



U. S. DEPARTMENT OF AGRICULTURE 



DIVISION OF BIOLOGICAL SURVEY 



THE 



Geographic Distiution of Cereals in North America 



O. S. PLUMB, B. S. 



Director, Indiana Agricultural Experiment Station 

 Purdue University, Lafayette, Ind. 



PREPARED UNDER THE DIRECTION OF 



DR. C. H^RT ]M;ERRI^>L]yr 



Chief of Biological Survey 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1893 



