The basis for the improvement of American wheats . Fig. 2.—Steam Combined Harvester-thresher harvesting on -Tule Lands nearStockton, Cal. (Original. Bui. 24, Div. Veg. Phys. &; Path., U. S Dept. of Aariculture. Plate Fig. 8.—Bags of Wheat just harvested on the Bidwell Estate, Chico, Cal. (Original, i

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