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by McCreath, Andrew S. (Andrew Smith), 1849-, Frazer, Persifor, 1844-1909, Platt, Franklin, 1844-1900, Lesley, J. P. (J. Peter), 1819-1903
Harrisburg : Published by the Board of Commissioners for the Second geological survey, 1879
Harrisburg : Published by the Board of Commissioners for the Second geological survey, 1879
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Government Document
Book
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by Lehman, Ambrose E. (Ambrose Edwin), 1851-1917
[Harrisburg, Pa.] : Geological Survey of Pennsylvania, 1875
[Harrisburg, Pa.] : Geological Survey of Pennsylvania, 1875
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Government Document
Map
5
by Lesley, J. P. (J. Peter), 1819-1903
Harrisburg, Board of Commissioners for the Second Geological Survey, 1885
Harrisburg, Board of Commissioners for the Second Geological Survey, 1885
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Government Document
Book
6
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Map
7
[Harrisburg] : Geological Survey of Pennsylvania, 1891
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Map
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9
[Harrisburg] : Geological Survey of Pennsylvania, 1889
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Map
10
[Harrisburg] : Geological Survey of Pennsylvania, 1891
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Map
11
[Harrisburg] : Geological Survey of Pennsylvania, 1889
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Map
12
[Harrisburg, Pennsylvania] : [Published by the Board of Commissioners for the Second Geological Survey], 1875
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document
Map
13
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Book
14
[Harrisburg] : Published by the Geological Survey of Pennsylvania, 1891
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Map
15
[Harrisburg] : Geological Survey of Pennsylvania, 1887
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Book
16
[Harrisburg] : Geological Survey of Pennsylvania, 1889
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Book
17
[Harrisburg] : Geological Survey of Pennsylvania, 1889
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Book
18
[Harrisburg] : Geological Survey of Pennsylvania, 1891
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Book
19
[Harrisburg] : Geological Survey of Pennsylvania, 1889
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Book
20
by Ludlow, William
[Harrisburg] : Geological Survey of Pennsylvania, 1887
[Harrisburg] : Geological Survey of Pennsylvania, 1887
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Book