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    Contributions to the crystallization of willemite
    Samuel Lewis Penfield
    American Journal of Science April 1894, s3-47 (280) 305-309; DOI: https://doi.org/10.2475/ajs.s3-47.280.305
  • You have access
    Contributions to mineralogy; No. 54. With crystallographic notes by S. L. Penfield
    F. A. Genth
    American Journal of Science November 1892, s3-44 (263) 381-389; DOI: https://doi.org/10.2475/ajs.s3-44.263.381
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    Post-Laramie deposits of Colorado
    [Charles] Whitman Cross
    American Journal of Science July 1892, s3-44 (259) 19-42; DOI: https://doi.org/10.2475/ajs.s3-44.259.19
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    Note on the asphaltum of Utah and Colorado
    George H. Stone
    American Journal of Science August 1891, s3-42 (248) 148-159; DOI: https://doi.org/10.2475/ajs.s3-42.248.148
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    New analyses of astrophyllite and tscheffkinite
    L. G. Eakins
    American Journal of Science July 1891, s3-42 (247) 34-38; DOI: https://doi.org/10.2475/ajs.s3-42.247.34
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    On the occurrence of nitrogen in uraninite and on the composition of uraninite in general
    W. F. Hillebrand
    American Journal of Science November 1890, s3-40 (239) 384-394; DOI: https://doi.org/10.2475/ajs.s3-40.239.384
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    Some suggestions upon the methods of grouping the formations of the middle Cretaceous and the employment of an additional term in its nomenclature
    George Homans Eldridge
    American Journal of Science October 1889, s3-38 (226) 313-321; DOI: https://doi.org/10.2475/ajs.s3-38.226.313
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    On Mesozoic dicotyledons
    Lester Frank Ward
    American Journal of Science April 1884, s3-27 (160) 292-303; DOI: https://doi.org/10.2475/ajs.s3-27.160.292
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    On minerals of the cryolite group recently found in Colorado
    Charles Whitman Cross and W. F. Hillebrand
    American Journal of Science October 1883, s3-26 (154) 271-294; DOI: https://doi.org/10.2475/ajs.s3-26.154.271
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    Notice of new dinosaurian reptiles from the Jurassic formation
    Othniel Charles Marsh
    American Journal of Science December 1877, s3-14 (84) 514-516; DOI: https://doi.org/10.2475/ajs.s3-14.84.514

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