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	1.	The great ice age in Pennsylvania / by H. Carvill Lewis. by Lewis, Henry Carvill, 1853-1888 Material type: Text; Format: print ; Literary form: Not fiction Publication details: [Philadelphia? : Franklin Institute?, 1883] Availability: No items available. Add to cart (remove)
	2.	Report on the terminal moraine in Pennsylvania and western New York. / By H. C. Lewis. To which is appended: The terminal moraine in Ohio and Kentucky, by G. F. Wright; and The terminal moraine in New Jersey, by G. H. Cook; reprinted from their reports. by Lewis, Henry Carvill, 1853-1888 Series: Report of progress (Geological Survey of Pennsylvania) ; Z. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Harrisburg, : Pub. by the Board of Commissioners for the Second Geological Survey, 1884 Availability: No items available. Add to cart (remove)

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