Bui. 25, Div. of Agrostology, U. S Dept. of Agriculture. 



Plate XVII. 



Fig. 1.— Sand Drifts along the Columbia River, Oregon, in Peach Orchard. 



Fig. 2.— View in Grass Station at Walla Walla, Wash., showing Canadian 

 Rye Grass (Elymus canadensisi. 



Fruiii a photograph by F. Lam.soii-Scribner. 



