Table of Contents

Articles

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  Pre-Cambrian metasediments in Grand Teton National Park, Wyoming

  Carl Leland Horberg and Fritiof Melvin Fryxell

  American Journal of Science June 1942, 240 (6) 385-393; DOI: https://doi.org/10.2475/ajs.240.6.385
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  A study of arborescent lycopod leaves associated with Lepidodendron selaginoides Sternberg stems in Iowa coal balls

  Leonard Richard Wilson and Iola Tillapaugh

  American Journal of Science June 1942, 240 (6) 394-402; DOI: https://doi.org/10.2475/ajs.240.6.394
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  New genera of Pennsylvanian fusulinids

  Marcus Luther Thompson

  American Journal of Science June 1942, 240 (6) 403-420; DOI: https://doi.org/10.2475/ajs.240.6.403
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  Triassic footprints from Argentina

  Richard S. Lull

  American Journal of Science June 1942, 240 (6) 421-425; DOI: https://doi.org/10.2475/ajs.240.6.421
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  The radio-elements in non-equilibrium systems

  William D. Urry

  American Journal of Science June 1942, 240 (6) 426-436; DOI: https://doi.org/10.2475/ajs.240.6.426
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  A rapid method of correlation for continuous time series

  Waldo Summer Glock

  American Journal of Science June 1942, 240 (6) 437-442; DOI: https://doi.org/10.2475/ajs.240.6.437
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  The carbonate-apatites; francolite from the Richtersveld, South Africa

  J. E. De Villiers

  American Journal of Science June 1942, 240 (6) 443-447; DOI: https://doi.org/10.2475/ajs.240.6.443
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  Large glacial erratics

  Ralph Leslie Rutherford

  American Journal of Science June 1942, 240 (6) 448-449; DOI: https://doi.org/10.2475/ajs.240.6.448