The bottomless pit
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The Lover's Leap
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The Arm Chair
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The water clock
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"The Rocky Mountains"
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Gypsum formation. (No. 8).
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Lower passage opening into "Cleveland's cabinet."
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On Echo River, [showing men with lamp in boat]
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Elbow Crevice"
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Stalactites at "Pompey."
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Entrance to "Gothic Avenue."
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Bottomless pit.
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The stone cottage.
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Martha Washington's Statue"
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Heaps of lixiviated earth.
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Methodist Church."
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Old Saltpeter Pipes. (1812)
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First Saltpeter Vats. (1812)
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Entrance from a distance.
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Star Chamber.
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