Bul^ 2A Div. Veg. Phys. & Path.. U. S Dept. of Agriculture. 



Plate IV. 



Fig. 8.— Bags of Wheat just harvested on the Bidwell Estate, Chico, Cal. 



(■Original. 





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•v;:v'?' 





Fig. 2.— Wheat Field near Tehama, Cal. < Original. 



