File:Second Geological Survey of Pennsylvania Report of Progress PPP.djvu

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Original file (1,020 × 1,610 pixels, file size: 10.62 MB, MIME type: image/vnd.djvu, 88 pages)

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Description Second Geological Survey of Pennsylvania. Report of Progress. PPP
Date
Source California/Internet Archive
Author Charles Emerson Beecher (1856-1904), James Hall (1811-1898), John Peter Lesley (1819-1903), J. Simpson Africa (1832-1900)

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Date/TimeThumbnailDimensionsUserComment
current21:12, 18 June 2011Thumbnail for version as of 21:12, 18 June 20111,020 × 1,610, 88 pages (10.62 MB)Enomil (talk | contribs){{Information |Description=Second Geological Survey of Pennsylvania. Report of Progress. PPP |Source=[http://babel.hathitrust.org/cgi/pt?id=uc2.ark:/13960/t9g44vp57 California/Internet Archive] |Date=1884 |Author=Charles Emerson Beecher (1856-1904), James

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