The age of the extramoraine fringe in eastern Pennsylvania

Edward Higginson Williams

doi:10.2475/ajs.s3-47.277.34

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Williams, E. H. (1894). The age of the extramoraine fringe in eastern Pennsylvania. American Journal of Science, s3-47(277), 34–37. https://doi.org/10.2475/ajs.s3-47.277.34

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The Age of the Extramoraine Fringe in Eastern Pennsylvania