Table of Contents

October 1886; Volume s3-32,Issue 190

Quaternary geology

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A dissected volcanic mountain; some of its revelations
James Dwight Dana

American Journal of Science October 1886, s3-32 (190) 247-255; DOI: https://doi.org/10.2475/ajs.s3-32.190.247

Economic geology of ore deposits

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Origin of the ferruginous schists and iron ores of the Lake Superior region
Roland Duer Irving

American Journal of Science October 1886, s3-32 (190) 255-272; DOI: https://doi.org/10.2475/ajs.s3-32.190.255

Mineralogy of silicates

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Further notes on the artificial lead silicate from Bonne Terre, MO
H. A. Wheeler

American Journal of Science October 1886, s3-32 (190) 272-273; DOI: https://doi.org/10.2475/ajs.s3-32.190.272

Mineralogy

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Limonite pseudomorphs after pyrite
John G. Meem

American Journal of Science October 1886, s3-32 (190) 274-276; DOI: https://doi.org/10.2475/ajs.s3-32.190.274
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On pseudomorphs of garnet from Lake Superior and Salida, Colorado
Samuel L. Penfield and F. L. Sperry

American Journal of Science October 1886, s3-32 (190) 307-311; DOI: https://doi.org/10.2475/ajs.s3-32.190.307
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On the brookite from Magnet Cove, Arkansas
Edward Salisbury Dana

American Journal of Science October 1886, s3-32 (190) 314-317; DOI: https://doi.org/10.2475/ajs.s3-32.190.314

General geophysics

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Note on the hydroelectric effect of temper, in case of steel
C. Barus and V. Strouhal

American Journal of Science October 1886, s3-32 (190) 276-283; DOI: https://doi.org/10.2475/ajs.s3-32.190.276

Petrology of meteorites and tektites

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On the crystalline structure of iron meteorites
Oliver W. Huntington

American Journal of Science October 1886, s3-32 (190) 284-303; DOI: https://doi.org/10.2475/ajs.s3-32.190.284

Igneous and metamorphic petrology

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A new meteoric iron from Texas
William Earl Hidden

American Journal of Science October 1886, s3-32 (190) 304-306; DOI: https://doi.org/10.2475/ajs.s3-32.190.304
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Further notes on the meteoric iron from Glorieta Mount, New Mexico
George Frederick Kunz

American Journal of Science October 1886, s3-32 (190) 311-313; DOI: https://doi.org/10.2475/ajs.s3-32.190.311