BuL. 16, Div.Veg. Phys. and Path , U.S. Deft. Agr. 



Plate II. 





It 



A 



' ■•'i 



BwtftiiBirtiaUsa, 



Xz- and Theiss Wheats Rusted in 1<S97. 



Heliotype Go,,'BostorL 



