Table of Contents

August 1894; Volume s3-48,Issue 284

Quaternary geology

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On certain astronomical conditions favorable to glaciation
George Ferdinand Becker

American Journal of Science August 1894, s3-48 (284) 95-113; DOI: https://doi.org/10.2475/ajs.s3-48.284.95

Mineralogy

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Mineralogical notes
Samuel Lewis Penfield

American Journal of Science August 1894, s3-48 (284) 114-118; DOI: https://doi.org/10.2475/ajs.s3-48.284.114
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On alunite, from Red Mountain, Ouray County, Colorado
E. B. Hurlburt

American Journal of Science August 1894, s3-48 (284) 130-131; DOI: https://doi.org/10.2475/ajs.s3-48.284.130
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Mineralogical notes
Samuel Lewis Penfield and D. A. Kreider

American Journal of Science August 1894, s3-48 (284) 141-144; DOI: https://doi.org/10.2475/ajs.s3-48.284.141

Invertebrate paleontology

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Development of the lungs of spiders
O. L. Simmons

American Journal of Science August 1894, s3-48 (284) 119-129; DOI: https://doi.org/10.2475/ajs.s3-48.284.119
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On the geographic and hypsometric distribution of North American Viviparidae
R. E. Call

American Journal of Science August 1894, s3-48 (284) 132-141; DOI: https://doi.org/10.2475/ajs.s3-48.284.132

General paleontology

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Carboniferous fossils in the Norfolk County Basin [Massachusetts]
Jay Backus Woodworth

American Journal of Science August 1894, s3-48 (284) 145-148; DOI: https://doi.org/10.2475/ajs.s3-48.284.145

Mineralogy of silicates

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On the determination of ferrous iron in silicates
J. H. Pratt

American Journal of Science August 1894, s3-48 (284) 149-151; DOI: https://doi.org/10.2475/ajs.s3-48.284.149

General geochemistry

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The action of reducing agents on iodic acid
C. F. Roberts

American Journal of Science August 1894, s3-48 (284) 151-158; DOI: https://doi.org/10.2475/ajs.s3-48.284.151
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The generation of chlorine for laboratory purposes
F. A. Gooch and D. A. Kreider

American Journal of Science August 1894, s3-48 (284) 166-170; DOI: https://doi.org/10.2475/ajs.s3-48.284.166

Stratigraphy

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The stratigraphic position of the Thomson slates [Minnesota]
Josiah Edward Spurr

American Journal of Science August 1894, s3-48 (284) 159-166; DOI: https://doi.org/10.2475/ajs.s3-48.284.159

Vertebrate paleontology

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Miocene artiodactyls from the eastern Miohippus beds
Othniel Charles Marsh

American Journal of Science August 1894, s3-48 (284) 175-178; DOI: https://doi.org/10.2475/ajs.s3-48.284.175