Table of Contents

Articles

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  New Tertiary artiodactyls

  Richard Swann Lull

  American Journal of Science August 1920, s4-50 (296) 83-130; DOI: https://doi.org/10.2475/ajs.s4-50.296.83
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  The binary system aakermanite-gehlenite

  John Bright Ferguson and A. F. Buddington

  American Journal of Science August 1920, s4-50 (296) 131-140; DOI: https://doi.org/10.2475/ajs.s4-50.296.131
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  Some chemical observations on the volcanic emanations and incrustations in the Valley of Ten Thousand Smokes, Katmai, Alaska

  John Wesley Shipley

  American Journal of Science August 1920, s4-50 (296) 141-153; DOI: https://doi.org/10.2475/ajs.s4-50.296.141
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  The Ordovician of Madison, Indiana

  Eula Davis McEwan

  American Journal of Science August 1920, s4-50 (296) 154-158; DOI: https://doi.org/10.2475/ajs.s4-50.296.154
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  Studies in the Cyperaceae; XXX, Carices aeorastachyae; Cryptocarpae nob.

  Theo. Holm

  American Journal of Science August 1920, s4-50 (296) 159-168; DOI: https://doi.org/10.2475/ajs.s4-50.296.159