Table of Contents

Articles

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  The igneous origin of the "glacial deposits" on the Navajo Reservation, Arizona and Utah

  Herbert Ernest Gregory

  American Journal of Science August 1915, s4-40 (236) 97-115; DOI: https://doi.org/10.2475/ajs.s4-40.236.97
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  The energy of a moving electron

  L. Page

  American Journal of Science August 1915, s4-40 (236) 116-128; DOI: https://doi.org/10.2475/ajs.s4-40.236.116
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  A new Nebraska mammoth, Elephas hayi.

  Erwin Hinckley Barbour

  American Journal of Science August 1915, s4-40 (236) 129-134; DOI: https://doi.org/10.2475/ajs.s4-40.236.129
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  A new gravial from the late Tertiary of Florida

  Elias Howard Sellards

  American Journal of Science August 1915, s4-40 (236) 135-138; DOI: https://doi.org/10.2475/ajs.s4-40.236.135
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  Chlamytherium septentrionalis, an edentate from the Pleistocene of Florida

  Elias Howard Sellards

  American Journal of Science August 1915, s4-40 (236) 139-145; DOI: https://doi.org/10.2475/ajs.s4-40.236.139
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  Bournonite crystals of unusual size from Park City, Utah

  Frank Robertson Van Horn and W. F. Hunt

  American Journal of Science August 1915, s4-40 (236) 145-150; DOI: https://doi.org/10.2475/ajs.s4-40.236.145
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  The age of the Castile gypsum and the Rustler Springs Formation

  Johan August Udden and George Burr Richardson

  American Journal of Science August 1915, s4-40 (236) 151-156; DOI: https://doi.org/10.2475/ajs.s4-40.236.151
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  On the determination of lead as sulphite

  G. S. Jamieson

  American Journal of Science August 1915, s4-40 (236) 157-160; DOI: https://doi.org/10.2475/ajs.s4-40.236.157
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  The crystallization of haplobasaltic, haplodioritic, and related magmas

  Norman Levi Bowen

  American Journal of Science August 1915, s4-40 (236) 161-185; DOI: https://doi.org/10.2475/ajs.s4-40.236.161
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  The migrations and geographic distribution of the fossil Amphibia

  Roy Lee Moodie

  American Journal of Science August 1915, s4-40 (236) 186-190; DOI: https://doi.org/10.2475/ajs.s4-40.236.186
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  The microscopical characters of volcanic tuffs; a study for students

  Louis Valentine Pirsson

  American Journal of Science August 1915, s4-40 (236) 191-211; DOI: https://doi.org/10.2475/ajs.s4-40.236.191
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  Northfieldite, pegmatite, and pegmatite schist

  Benjamin Kendall Emerson

  American Journal of Science August 1915, s4-40 (236) 212-217; DOI: https://doi.org/10.2475/ajs.s4-40.236.212