Table of Contents

Articles

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  Radioactivity of ocean sediments; IV, The radium content of sediments of the Cayman Trough

  C. S. Piggot and William D. Urry

  American Journal of Science January 1942, 240 (1) 1-12; DOI: https://doi.org/10.2475/ajs.240.1.1
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  Mineral separates from the Cape Ann granite, Part 2 of The distribution of helium and radioactivity in rocks

  Norman Bell Keevil

  American Journal of Science January 1942, 240 (1) 13-21; DOI: https://doi.org/10.2475/ajs.240.1.13
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  Ampelocrinus, a new crinoid genus from the Upper Mississippian

  Edwin Kirk

  American Journal of Science January 1942, 240 (1) 22-28; DOI: https://doi.org/10.2475/ajs.240.1.22
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  Glacier thinning during deglaciation; Part 1, Glacier regimens and ice movement within glaciers

  Richard Foster Flint and Max Demorest

  American Journal of Science January 1942, 240 (1) 29-66; DOI: https://doi.org/10.2475/ajs.240.1.29
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  The Witsand meteorite, South-West Africa

  S. James Shand

  American Journal of Science January 1942, 240 (1) 67-71; DOI: https://doi.org/10.2475/ajs.240.1.67