American Journal of Science: s4-4 (24)

December 01, 1897; Volume s4-4,Issue 24

Articles

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A microsclerometer, for determining the hardness of minerals
T. A. Jaggar

American Journal of Science December 1897, s4-4 (24) 399-412; DOI: https://doi.org/10.2475/ajs.s4-4.24.399
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Recent observations on European dinosaurs
O. C. Marsh

American Journal of Science December 1897, s4-4 (24) 413-416; DOI: https://doi.org/10.2475/ajs.s4-4.24.413
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On the sapphires from Montana, with special reference to those from Yogo Gulch in Fergus County
George Frederick Kunz

American Journal of Science December 1897, s4-4 (24) 417-420; DOI: https://doi.org/10.2475/ajs.s4-4.24.417
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On the corundum-bearing rock from Yogo Gulch, Montana
Louis Valentine Pirsson

American Journal of Science December 1897, s4-4 (24) 421-423; DOI: https://doi.org/10.2475/ajs.s4-4.24.421
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On the crystallography of the Montana sapphires
Joseph Hyde Pratt

American Journal of Science December 1897, s4-4 (24) 424-428; DOI: https://doi.org/10.2475/ajs.s4-4.24.424
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Electrical measurement by alternating currents
H. A. Rowland

American Journal of Science December 1897, s4-4 (24) 429-448; DOI: https://doi.org/10.2475/ajs.s4-4.24.429
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The alleged Jurassic of Texas; a reply to Professor Jules Marcou
Robert Thomas Hill

American Journal of Science December 1897, s4-4 (24) 449-469; DOI: https://doi.org/10.2475/ajs.s4-4.24.449