Biodiversity Heritage Library · page-20026910
Soil fertility laboratory manual — Illustration, Page 7
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BHL classifies this scanned page as Illustration. Publication: Soil fertility laboratory manual. Publication creators (not identified as the page's illustrator): Hopkins, Cyril G. (Cyril George), 1866-1919; Pettit, James Harvey, 1876-1914. Contributing institutions: University of Toronto - Earth Sciences Library (Noranda). Bibliographic metadata supplied by BHL under CC0; image rights are separate.
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1910. Soil fertility laboratory manual — Illustration, Page 7. https://www.biodiversitylibrary.org/page/20026910
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