Table of Contents

Articles

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  Charles Doolittle Walcott

  George Otis Smith

  American Journal of Science July 1927, s5-14 (79) 1-6; DOI: https://doi.org/10.2475/ajs.s5-14.79.1
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  The ontogenies of trilobites and their significance

  Frank Raw

  American Journal of Science July 1927, s5-14 (79) 7-35; DOI: https://doi.org/10.2475/ajs.s5-14.79.7
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  Mesozoic Mammalia; Part VII, Taxonomy of Morrison multituberculates

  George G. Simpson

  American Journal of Science July 1927, s5-14 (79) 36-38; DOI: https://doi.org/10.2475/ajs.s5-14.79.36
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  Geological distribution of iodine

  W. N. Benson and C. L. Carter

  American Journal of Science July 1927, s5-14 (79) 39-47; DOI: https://doi.org/10.2475/ajs.s5-14.79.39
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  A new footprint locality

  Richard Swann Lull

  American Journal of Science July 1927, s5-14 (79) 48-49; DOI: https://doi.org/10.2475/ajs.s5-14.79.48
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  Quantitative microscopic analysis

  Harold Lattimore Alling and Wilbur G. Valentine

  American Journal of Science July 1927, s5-14 (79) 50-65; DOI: https://doi.org/10.2475/ajs.s5-14.79.50
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  Note on the extinction of the mammoth in Siberia

  Innokenti Pavlovich Tolmachoff

  American Journal of Science July 1927, s5-14 (79) 66-69; DOI: https://doi.org/10.2475/ajs.s5-14.79.66
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  Subaerial sun cracks

  Joel Howard Swartz

  American Journal of Science July 1927, s5-14 (79) 69-70; DOI: https://doi.org/10.2475/ajs.s5-14.79.69
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  Tathiodon, new genus, to replace Tanaodon Simpson non Kirk; a correction

  George Gaylord Simpson

  American Journal of Science July 1927, s5-14 (79) 71; DOI: https://doi.org/10.2475/ajs.s5-14.79.71