Table of Contents

Articles

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  Meniscotherium robustum sp. nov., and a discussion of Hyracops socialis Marsh

  Malcolm Rutherford Thorpe

  American Journal of Science June 1934, s5-27 (162) 401-409; DOI: https://doi.org/10.2475/ajs.s5-27.162.401
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  Wind gaps and water gaps in Pennsylvania

  Howard Augustus Meyerhoff and Elizabeth Warren Olmstead

  American Journal of Science June 1934, s5-27 (162) 410-416; DOI: https://doi.org/10.2475/ajs.s5-27.162.410
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  The contrasting plutonic massifs of Riviere a Pierre, Quebec

  Freleigh Fitz Osborne

  American Journal of Science June 1934, s5-27 (162) 417-431; DOI: https://doi.org/10.2475/ajs.s5-27.162.417
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  The origin and age of the boulder-bearing Johns Valley shale in the Ouachita Mountains of Arkansas and Oklahoma

  Raymond Cecil Moore

  American Journal of Science June 1934, s5-27 (162) 432-453; DOI: https://doi.org/10.2475/ajs.s5-27.162.432
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  Anorthoclase crystals, as an index of migration of penguins

  Duncan Stewart

  American Journal of Science June 1934, s5-27 (162) 454-456; DOI: https://doi.org/10.2475/ajs.s5-27.162.454
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  Preliminary notice of a new species of Hippohyus from India

  G. Edward Lewis

  American Journal of Science June 1934, s5-27 (162) 457-459; DOI: https://doi.org/10.2475/ajs.s5-27.162.457
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  The age of the Rensselaer graywacke

  Henry Vaughan and T. Yates Wilson

  American Journal of Science June 1934, s5-27 (162) 460-462; DOI: https://doi.org/10.2475/ajs.s5-27.162.460
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  The upper Jurassic age of the Tendaguru dinosaur beds

  Charles Schuchert

  American Journal of Science June 1934, s5-27 (162) 463-466; DOI: https://doi.org/10.2475/ajs.s5-27.162.463