American Journal of Science: s3-38 (224)

August 1889; Volume s3-38,Issue 224

Miscellaneous

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Observation of sudden phenomena
S. P. Langley

American Journal of Science August 1889, s3-38 (224) 93-99; DOI: https://doi.org/10.2475/ajs.s3-38.224.93
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Spectro-photometric comparison of sources of artificial illumination
Edward L. Nichols and William S. Franklin

American Journal of Science August 1889, s3-38 (224) 100-114; DOI: https://doi.org/10.2475/ajs.s3-38.224.100
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Action of light on allotropic silver
M. Carey Lea

American Journal of Science August 1889, s3-38 (224) 129; DOI: https://doi.org/10.2475/ajs.s3-38.224.129

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On the possibility of hemihedrism in the monoclinic crystal system, with especial reference to the hemihedrism of pyroxene
George Huntington Williams

American Journal of Science August 1889, s3-38 (224) 115-120; DOI: https://doi.org/10.2475/ajs.s3-38.224.115
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A new occurrence of Gyrolite
Frank Wigglesworth Clarke

American Journal of Science August 1889, s3-38 (224) 128-129; DOI: https://doi.org/10.2475/ajs.s3-38.224.128

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On the earlier Cretaceous rocks of the northwestern portion of the Dominion of Canada
George Mercer Dawson

American Journal of Science August 1889, s3-38 (224) 120-127; DOI: https://doi.org/10.2475/ajs.s3-38.224.120
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On the great lava flows and intrusive trap sheets of the Newark system in New Jersey
Nelson Horatio Darton

American Journal of Science August 1889, s3-38 (224) 134-139; DOI: https://doi.org/10.2475/ajs.s3-38.224.134

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On certain porphyrite bosses in northwestern New Jersey
James Furman Kemp

American Journal of Science August 1889, s3-38 (224) 130-134; DOI: https://doi.org/10.2475/ajs.s3-38.224.130

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Recent explorations in the Wappinger Valley limestones and other formations of Dutchess County, New York
William Buck Dwight

American Journal of Science August 1889, s3-38 (224) 139-153; DOI: https://doi.org/10.2475/ajs.s3-38.224.139

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Silicic acids
George Ferdinand Becker

American Journal of Science August 1889, s3-38 (224) 154-157; DOI: https://doi.org/10.2475/ajs.s3-38.224.154

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Notice of gigantic horned Dinosauria from the Cretaceous
Othniel Charles Marsh

American Journal of Science August 1889, s3-38 (224) 173-176; DOI: https://doi.org/10.2475/ajs.s3-38.224.173
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Discovery of Cretaceous Mammalia; Part II
O. C. Marsh

American Journal of Science August 1889, s3-38 (224) 177-180; DOI: https://doi.org/10.2475/ajs.s3-38.224.177