Vol. X AUGUST 27, 1917 No. 9 



JOURNAL OP 



AGRICULTURAL 



RESEARCH 



CONTKNXS 



Psge 



Biologic Forms of Puccinia graminis on Cereals and 



Grasses - - _. - - - - - - 429 



£. C. STAKMAN and F. J. PIBMEISEL 



PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE, 



WITH THE COOPERATION OF THE ASSOCIATION OF AMERICAN 



AGRICULTURAL COLLEGES AND EXPERIMENT STATIONS 



WASHINGrTOK, D. C. 



WAEHINOVOH : OOVEHKMEfJT PRINTIMO OFFICE : Itl] 



