American Journal of Science: s2-50 (150)

November 1870; Volume s2-50,Issue 150

Economic geology, geology of ore deposits

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On the examination of the Bessemer flame with colored glasses and with the spectroscope
J. M. Silliman

American Journal of Science November 1870, s2-50 (150) 297-307; DOI: https://doi.org/10.2475/ajs.s2-50.150.297

Applied geophysics

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On a simple method of measuring electrical conductivities by means of two equal and opposed magneto-electric currents or waves
Alfred M. Mayer

American Journal of Science November 1870, s2-50 (150) 307-318; DOI: https://doi.org/10.2475/ajs.s2-50.150.307
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On a new method of determining level error of the axis of a meridian instrument
C. A. Young

American Journal of Science November 1870, s2-50 (150) 348-350; DOI: https://doi.org/10.2475/ajs.s2-50.150.348

Quaternary geology

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On the supposed absence of the northern drift from the Pacific Slope of the Rocky Mountains
Robert Brown

American Journal of Science November 1870, s2-50 (150) 318-324; DOI: https://doi.org/10.2475/ajs.s2-50.150.318

General paleontology

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Extracts from the address of George Bentham
George Bentham

American Journal of Science November 1870, s2-50 (150) 325-335; DOI: https://doi.org/10.2475/ajs.s2-50.150.325
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Address of Thomas Henry Huxley, at the meeting of the British Association at Liverpool, on the 14th of Sept., 1870
Anonymous

American Journal of Science November 1870, s2-50 (150) 383-402; DOI: https://doi.org/10.2475/ajs.s2-50.150.383

Petrology of meteorites and tektites

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Account of the fall of a meteoric stone in Stewart County, Georgia
Joseph E. Willet

American Journal of Science November 1870, s2-50 (150) 335-338; DOI: https://doi.org/10.2475/ajs.s2-50.150.335

Igneous and metamorphic petrology

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Description and analysis of a meteoric stone that fell in Stewart County, Georgia.
John Lawrence Smith

American Journal of Science November 1870, s2-50 (150) 339-341; DOI: https://doi.org/10.2475/ajs.s2-50.150.339

General geochemistry

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Some practical remarks on the use of flame heat in the chemical laboratory, especially that from burning gas without the aid of a blast
J. Lawrence Smith

American Journal of Science November 1870, s2-50 (150) 341-344; DOI: https://doi.org/10.2475/ajs.s2-50.150.341
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Farmer's theorem discussed; discussion
B. Silliman

American Journal of Science November 1870, s2-50 (150) 377-378; DOI: https://doi.org/10.2475/ajs.s2-50.150.377
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Farmer's theorem discussed; reply
B. Silliman

American Journal of Science November 1870, s2-50 (150) 379-383; DOI: https://doi.org/10.2475/ajs.s2-50.150.379

Extraterrestrial geology

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On the connection between terrestrial temperature and solar spots
Cleveland Abbe

American Journal of Science November 1870, s2-50 (150) 345-347; DOI: https://doi.org/10.2475/ajs.s2-50.150.345
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On the secular perturbations of the planets
Asaph Hall

American Journal of Science November 1870, s2-50 (150) 370-372; DOI: https://doi.org/10.2475/ajs.s2-50.150.370
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Photograph of a solar prominence
C. A. Young

American Journal of Science November 1870, s2-50 (150) 404-405; DOI: https://doi.org/10.2475/ajs.s2-50.150.404
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Discovery of a new planet, the 112th, named Iphigenia
C. H. F. Peters

American Journal of Science November 1870, s2-50 (150) 409; DOI: https://doi.org/10.2475/ajs.s2-50.150.409

General geophysics

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Influence of temperature on the modulus of elasticity of certain metals
F. Kohlrausch and Francis E. Loomis

American Journal of Science November 1870, s2-50 (150) 350-366; DOI: https://doi.org/10.2475/ajs.s2-50.150.350

Miscellaneous

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On the oxy-calcium light as applied to photomicrography
J. J. Woodward

American Journal of Science November 1870, s2-50 (150) 366-369; DOI: https://doi.org/10.2475/ajs.s2-50.150.366
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Farmer's theorem discussed
Fred E. Stimpson

American Journal of Science November 1870, s2-50 (150) 372-376; DOI: https://doi.org/10.2475/ajs.s2-50.150.372
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The hail storm of June 20th, 1870
Horace C. Hovey

American Journal of Science November 1870, s2-50 (150) 403-404; DOI: https://doi.org/10.2475/ajs.s2-50.150.403

Invertebrate paleontology

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Contributions to zoology from the Museum of Yale College; No. 8, Descriptions of some New England Nudibranchiata
A. E. Verrill

American Journal of Science November 1870, s2-50 (150) 405-408; DOI: https://doi.org/10.2475/ajs.s2-50.150.405

Seismology

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On a recent earthquake at Bogota
S. A. Hurlbut

American Journal of Science November 1870, s2-50 (150) 408-409; DOI: https://doi.org/10.2475/ajs.s2-50.150.408

Areal geology

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Geological explorations in China
Baron von Richthofen

American Journal of Science November 1870, s2-50 (150) 410-413; DOI: https://doi.org/10.2475/ajs.s2-50.150.410

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Table of Contents

Economic geology, geology of ore deposits

Applied geophysics

Quaternary geology

General paleontology

Petrology of meteorites and tektites

Igneous and metamorphic petrology

General geochemistry

Extraterrestrial geology

General geophysics

Miscellaneous

Invertebrate paleontology

Seismology

Areal geology

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