Table of Contents

May 1861; Volume s2-31,Issue 93

Solid-earth geophysics

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The Aurora, viewed as an electric discharge between the magnetic poles of the Earth, modified by the Earth's magnetism
Benjamin V. Marsh

American Journal of Science May 1861, s2-31 (93) 311-318; DOI: https://doi.org/10.2475/ajs.s2-31.93.311

Geomorphology

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Remarks upon the atoll of Ebon, in Micronesia
E. T. Doane

American Journal of Science May 1861, s2-31 (93) 318-325; DOI: https://doi.org/10.2475/ajs.s2-31.93.318

Vertebrate paleontology

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On normal quasi-vision of the moving blood-corpuscles, within the retina of the human eye
Levi Reuben

American Journal of Science May 1861, s2-31 (93) 325-338; DOI: https://doi.org/10.2475/ajs.s2-31.93.325
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The Quaternian or Diluvian period, considered in its relation to the Present epoch
F. J. Pictet

American Journal of Science May 1861, s2-31 (93) 345-353; DOI: https://doi.org/10.2475/ajs.s2-31.93.345

Mineralogy of non-silicates

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Upon some experiments connected with Dove's theory of lustre
O. N. Rood

American Journal of Science May 1861, s2-31 (93) 339-345; DOI: https://doi.org/10.2475/ajs.s2-31.93.339

Quaternary geology

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The Quaternian or Diluvian period, considered in its relation to the Present epoch
F. J. Pictet

American Journal of Science May 1861, s2-31 (93) 345-353; DOI: https://doi.org/10.2475/ajs.s2-31.93.345

Igneous and metamorphic petrology

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On the presence of phosphoric acid in igneous rocks
James Schiel

American Journal of Science May 1861, s2-31 (93) 353; DOI: https://doi.org/10.2475/ajs.s2-31.93.353

General mineralogy

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Ninth supplement to Dana's mineralogy
George J. Brush

American Journal of Science May 1861, s2-31 (93) 354-371; DOI: https://doi.org/10.2475/ajs.s2-31.93.354

Areal geology

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On the conversion of certain conglomerates into talcose and micaceous schists and gneiss, by the elongation, flattening, and metamorphosis of the pebbles and the cement
Edward Hitchcock

American Journal of Science May 1861, s2-31 (93) 372-392; DOI: https://doi.org/10.2475/ajs.s2-31.93.372

Stratigraphy

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On some points in American geology
Thomas Sterry Hunt

American Journal of Science May 1861, s2-31 (93) 392-414; DOI: https://doi.org/10.2475/ajs.s2-31.93.392