Description
Gray's Geological Map of the United States By Charles H. Hitchcock PH.D. Professor of Geology in Dartmouth College. Original hand colored lithograph. This beautifully colored antique map shows nine different geological classifications, each identified in a key at lower left. The title is engraved above the map. Dr. Charles H. Hichkock, professor of geology at the Dartmouth College has drawn this interesting geological map. In excellent condition. Dimensions: 27,5 x 17 inches.
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