topic

• Geology15
• Anthracite coal mines and mining5
• Coal5
• Railroads4
• Geological surveys3
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name

• Hart, Lane S20
• Geological Survey of Pennsylvania19
• Lesley, J. P. (J. Peter), 1819-190319
• Julius Bien & Co10
• Ashburner, Charles A. (Charles Albert), 1854-18899
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collection

• Maps of North America27

place

• Pennsylvania27
• Schuylkill County6
• Carbon County5
• Schuylkill County (Pa.)4
• Carbon County (Pa.)3
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genre

• Maps27
• Geological maps8
• Geological cross-sections6
• Charts4
• Diagrams4
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publisher

• Geological Survey of Pennsylvania11
• Second Geological Survey of Pennsylvania7
• Board of Commissioners for the Second Geological Survey2
• Department of Internal Affairs2
• Geological Survey of Pennsylvania?1
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division

type

• cartographic27