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The Rivers and Valleys of Pennsylvania
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The Rivers and Valleys of Pennsylvania

work by Davis

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discussed in biography

  • In William Morris Davis

    …and the publication of “The Rivers and Valleys of Pennsylvania” (1889) laid the foundation for the Davisian system of landscape analysis, perhaps his most significant contribution to physical geography. In this work, he proposed that the physical features of the land are the result of a long, continued, orderly change…

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