Note on lignite beds and their underclays

Eugene Woldemar Hilgard

doi:10.2475/ajs.s3-7.39.208

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Hilgard, E. W. (1874). Note on lignite beds and their underclays. American Journal of Science, s3-7(39), 208–210. https://doi.org/10.2475/ajs.s3-7.39.208

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Note on Lignite Beds and Their Underclays