. The commercial apple industry of North America. Apples. ^-. Plato XVI.—Diseases of the apple. 1, Bitter-rot on Pippin showing spots and red specks. 2, Sooty-fungus and fly-speck. 3. Apples atfected with the scab fungus. 4, Leaf affected with apple-seal). 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 Folger, John Clifford, 1890-; Thomson, Samuel Mable, 1891-. New York : The Macmillan Co.

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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921