eastern Pennsylvania

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Notes on the southern ice limit in eastern Pennsylvania
Edward Higginson Williams

American Journal of Science March 1895, s3-49 (291) 174-185; DOI: https://doi.org/10.2475/ajs.s3-49.291.174
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The Devonian system of eastern Pennsylvania
Charles Smith Prosser

American Journal of Science September 1892, s3-44 (261) 210-221; DOI: https://doi.org/10.2475/ajs.s3-44.261.210
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Notice of the discovery of a cave in eastern Pennsylvania containing remains of post-Pliocene fossils...
Charles M. Wheatley

American Journal of Science April 1871, s3-1 (4) 235-237; DOI: https://doi.org/10.2475/ajs.s3-1.4.235

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