American Journal of Science: s3-39 (233)

May 1890; Volume s3-39,Issue 233

Applied geophysics

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Experiments with a pendulum-electrometer, illustrating measurements of static electricity in absolute units
A. M. Mayer

American Journal of Science May 1890, s3-39 (233) 327-333; DOI: https://doi.org/10.2475/ajs.s3-39.233.327
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On electric potential as measured by work
A. M. Mayer

American Journal of Science May 1890, s3-39 (233) 334-336; DOI: https://doi.org/10.2475/ajs.s3-39.233.334

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An elementary proof of the earth's rigidity
George Ferdinand Becker

American Journal of Science May 1890, s3-39 (233) 336-352; DOI: https://doi.org/10.2475/ajs.s3-39.233.336

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On the hornblende of Saint Lawrence County, New York, and its gliding planes
George Huntington Williams

American Journal of Science May 1890, s3-39 (233) 352-358; DOI: https://doi.org/10.2475/ajs.s3-39.233.352
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Notes on some secondary minerals of the amphibole and pyroxene groups
Charles Whitman Cross

American Journal of Science May 1890, s3-39 (233) 359-370; DOI: https://doi.org/10.2475/ajs.s3-39.233.359
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On spangolite, a new copper mineral
Samuel Lewis Penfield

American Journal of Science May 1890, s3-39 (233) 370-378; DOI: https://doi.org/10.2475/ajs.s3-39.233.370

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Notes on some secondary minerals of the amphibole and pyroxene groups
Charles Whitman Cross

American Journal of Science May 1890, s3-39 (233) 359-370; DOI: https://doi.org/10.2475/ajs.s3-39.233.359
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Meteoric iron from North Carolina
L. G. Eakins

American Journal of Science May 1890, s3-39 (233) 395-396; DOI: https://doi.org/10.2475/ajs.s3-39.233.395

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Archean axes of eastern North America
James Dwight Dana

American Journal of Science May 1890, s3-39 (233) 378-383; DOI: https://doi.org/10.2475/ajs.s3-39.233.378
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On the metamorphic strata of southeastern New York
Frederick James Hamilton Merrill

American Journal of Science May 1890, s3-39 (233) 383-392; DOI: https://doi.org/10.2475/ajs.s3-39.233.383

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The radiant energy of the standard candle; mass of meteors
C. C. Hutchins

American Journal of Science May 1890, s3-39 (233) 392-395; DOI: https://doi.org/10.2475/ajs.s3-39.233.392

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Distinctive characters of the order Hallopoda
Othniel Charles Marsh

American Journal of Science May 1890, s3-39 (233) 415-417; DOI: https://doi.org/10.2475/ajs.s3-39.233.415
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Additional characters of the Ceratopsidae, with notice of new Cretaceous dinosaurs
Othniel Charles Marsh

American Journal of Science May 1890, s3-39 (233) 418-426; DOI: https://doi.org/10.2475/ajs.s3-39.233.418