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  1. By: Geological Survey of Texas. - Dumble, E. T. (Edwin Theodore),
    Publication info: Austin, State Printing Office [etc.], 1890-1893
    Holding Institution: Smithsonian Libraries and Archives
  1. By: Dumble, E. T. (Edwin Theodore),
    Type: Article
    In: Proceedings of the California Academy of Sciences, 4th series
    Volume: 5
    Series: 4
    Date: 1915
    Page Range: 163--193
    Publication Info: San Francisco California Academy of Sciences
  2. By: Dumble, E. T. (Edwin Theodore),
    Type: Article
    In: Proceedings of the California Academy of Sciences, 4th series
    Volume: 8
    Series: 4
    Date: 1918
    Page Range: 113--156
    Publication Info: San Francisco California Academy of Sciences