. Corn book for young folk. Corn. ^^^ â j^^H I Fig. 129. Om; ok tiik Earliest Forms of a Plow. Bnnnnnnnnnnna BnannnnnnDnn Fig. 130. A Tractor Plow The squares show the number of acres broken in one day by this plow. 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 Williams, Charles Burgess, 1871-1947; Hill, Daniel Harvey, 1859-1924. Boston, Ginn and Company

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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjectcorn, bookyear1920