Table of Contents

Articles

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  Proterozoic stromatolite zonation

  P. E. Cloud and M. A. Semikhatov

  American Journal of Science November 1969, 267 (9) 1017-1061; DOI: https://doi.org/10.2475/ajs.267.9.1017
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  Aysheaia and the general morphology of the Onychophora

  G. Evelyn Hutchinson

  American Journal of Science November 1969, 267 (9) 1062-1066; DOI: https://doi.org/10.2475/ajs.267.9.1062
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  Magma convection, temperature distribution, and differentiation

  Robert W. Bartlett

  American Journal of Science November 1969, 267 (9) 1067-1082; DOI: https://doi.org/10.2475/ajs.267.9.1067
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  An experimental investigation of the system MgO-SiO ₂ -H ₂ O-CO ₂

  W. Johannes

  American Journal of Science November 1969, 267 (9) 1083-1104; DOI: https://doi.org/10.2475/ajs.267.9.1083
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  The system MgF ₂ -MgO-H ₂ O

  R. L. Crane and E. G. Ehlers

  American Journal of Science November 1969, 267 (9) 1105-1111; DOI: https://doi.org/10.2475/ajs.267.9.1105
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  Correction - nepheline syenite at brookville, new jersey (1964)

  Charles Milton, Mary E. Mrose and B. Carter Hearn

  American Journal of Science November 1969, 267 (9) 1112-1113; DOI: https://doi.org/10.2475/ajs.267.9.1112
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  Discussion ; [of] 'Computer program for plotting beta-diagrams'

  Peter W. H. Lam

  American Journal of Science November 1969, 267 (9) 1114-1117; DOI: https://doi.org/10.2475/ajs.267.9.1114
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  Layered igneous rocks [book review]

  E. M. Moores

  American Journal of Science November 1969, 267 (9) 1118-1120; DOI: https://doi.org/10.2475/ajs.267.9.1118