topic

• Geology15
• Anthracite coal mines and mining5
• Anthracite coal4
• Coal4
• Coal mines and mining4
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name

• Lesley, J. P. (J. Peter), 1819-190324
• Geological Survey of Pennsylvania21
• Hart, Lane S20
• Ashburner, Charles A. (Charles Albert), 1854-188910
• Julius Bien & Co10
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collection

• Maps of North America29
• Maps of New York City and State1

place

• Schuylkill County7
• Carbon County5
• Schuylkill County (Pa.)5
• Carbon County (Pa.)3
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genre

• Maps30
• Geological maps9
• Geological cross-sections6
• Charts3
• Diagrams3
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publisher

• Geological Survey of Pennsylvania13
• Second Geological Survey of Pennsylvania7
• publisher not identified2
• Board of Commissioners for the Second Geological Survey1
• Geological Survey of Pennsylvania?1
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division

• Map Division30

type