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Table of Contents

August 1891; Volume s3-42,Issue 248

Igneous and metamorphic petrology

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    Some of the features of nonvolcanic igneous ejections, as illustrated in the four "Rocks" of the New Haven region, West Rock, Pine Rock, Mill Rock, and East Rock
    James Dwight Dana
    American Journal of Science August 1891, s3-42 (248) 79-110; DOI: https://doi.org/10.2475/ajs.s3-42.248.79

Stratigraphy

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    Notes on a reconnaissance of the Ouachita mountain system in Indian Territory
    Robert Thomas Hill
    American Journal of Science August 1891, s3-42 (248) 111-124; DOI: https://doi.org/10.2475/ajs.s3-42.248.111

General geochemistry

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    The continuity of solid and liquid
    Carl Barus
    American Journal of Science August 1891, s3-42 (248) 125-147; DOI: https://doi.org/10.2475/ajs.s3-42.248.125

Economic geology of energy sources

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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

Extraterrestrial geology

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    Photographic investigation of solar prominences and their spectra
    George E. Hale
    American Journal of Science August 1891, s3-42 (248) 160-166; DOI: https://doi.org/10.2475/ajs.s3-42.248.160

Economic geology of ore deposits

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    A gold-bearing hot-spring deposit
    Walter Harvey Weed
    American Journal of Science August 1891, s3-42 (248) 166-169; DOI: https://doi.org/10.2475/ajs.s3-42.248.166

Vertebrate paleontology

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    Restoration of Stegosaurus.
    Othniel Charles Marsh
    American Journal of Science August 1891, s3-42 (248) 179-181; DOI: https://doi.org/10.2475/ajs.s3-42.248.179
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American Journal of Science
Vol. s3-42, Issue 248
August 1891
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  • Igneous and metamorphic petrology
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