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1Subjects: '; “...Frontier and pioneer life Allegheny Mountains....”
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2Subjects: '; “...Salt Geology Pennsylvania Allegheny Mountains....”
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3Published 2013Subjects: ';In collection: Published MaterialsBook
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4Subjects: '; “...Salt Geology Pennsylvania Allegheny Mountains....”
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5Author: Jackson, Robert Montgomery Smith, 1815-1865“...Allegheny Mountains....”
Published 1860In collection: Published Materials
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6Author: Jackson, Robert Montgomery Smith, 1815-1865“...Allegheny Mountains....”
Published 1858In collection: Published Materials
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7
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8“...Allegheny Mountains....”
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9Author: McCook, Henry C. (Henry Christopher), 1837-1911“...Allegheny Mountains Insects....”
Published 1877In collection: Published Materials
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10Author: McCook, Henry C. (Henry Christopher), 1837-1911“...Allegheny Mountains Insects....”
Published 1877In collection: Published Materials
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12
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13
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14“...Allegheny Mountains....”
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15Author: Macartney, Clarence Edward Noble, 1879-1957
Published 1936In collection: Published MaterialsBook -
16Book
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17Book
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18Book
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19“...Allegheny Mountains History Revolution, 1775-1783....”
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