Abstract
FROM a chemical point of view may I dissent from much that is said about the Stopes nomenclature for the visible ingredients of bituminous coals in Dr. Lessing's article in NATURE of April 27.
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BONE, W. The Classification of Coals. Nature 135, 910–911 (1935). https://doi.org/10.1038/135910b0
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DOI: https://doi.org/10.1038/135910b0
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