. Chemical investigations of the tobacco plant. Tobacco; Plants. Ratio alkalinity of ash - nitrate to total organic acids Per cent N as NH3 0 50 100 Per cent N as NH3. Fig. 14 Malic acid. 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 Vickery, Hubert Bradford, b. 1893. [New Haven] : Connecticut Agricultural Experiment Station

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Keywords: ., bookcentury1900, bookpubli, booksubjectplants, booksubjecttobacco