Table of Contents

December 1889; Volume s3-38,Issue 228

Extraterrestrial geology

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Temperature of the Moon
S. P. Langley

American Journal of Science December 1889, s3-38 (228) 421-439; DOI: https://doi.org/10.2475/ajs.s3-38.228.421

Stratigraphy

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The Lower Cretaceous of the Southwest and its relation to the underlying and overlying formations
Charles Abiathar White

American Journal of Science December 1889, s3-38 (228) 440-445; DOI: https://doi.org/10.2475/ajs.s3-38.228.440
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Relation of the uppermost Cretaceous beds of the eastern and southern United States; and the Tertiary-Cretaceous parting of Arkansas and Texas
Robert Thomas Hill and R. A. F. Penrose

American Journal of Science December 1889, s3-38 (228) 468-473; DOI: https://doi.org/10.2475/ajs.s3-38.228.468

Invertebrate paleontology

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Hinge of pelecypods and its development with an attempt toward a better subdivision of the group
W. H. Dall

American Journal of Science December 1889, s3-38 (228) 445-461; DOI: https://doi.org/10.2475/ajs.s3-38.228.445

General geophysics

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Magnetism of nickel and tungsten alloys
John Trowbridge and S. Sheldon

American Journal of Science December 1889, s3-38 (228) 462-464; DOI: https://doi.org/10.2475/ajs.s3-38.228.462
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Note on the measurement of the internal resistance of batteries
B. O. Peirce and R. W. Willson

American Journal of Science December 1889, s3-38 (228) 465-467; DOI: https://doi.org/10.2475/ajs.s3-38.228.465

Mineralogy

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A description of several yttria and thoria minerals from Llano County, Texas
William Earl Hidden and J. B. Mackintosh

American Journal of Science December 1889, s3-38 (228) 474-486; DOI: https://doi.org/10.2475/ajs.s3-38.228.474

Vertebrate paleontology

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The skull of the gigantic Ceratopsidae
Othniel Charles Marsh

American Journal of Science December 1889, s3-38 (228) 501-506; DOI: https://doi.org/10.2475/ajs.s3-38.228.501