. Bulletin. Agricultural experiment stations -- United States; Agriculture -- United States. Fig. 1.—University of Minnesota-Centgener Thrashing Machine and Fanning- MiLL Separator in Use in the Field Crop Fig. 2.—University of Minnesota—Machine for Planting Grain in Nursery Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Office of Experiment Stations. Washington : G. P. O.

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