. Bulletin of the scientific laboratories of Denison University. FiGUkK I -Halloway Mine. Figure 2-Shaft 2—Walker Mine. COPPER MINES, PERSON COUNTY, NORTH CAROLINA. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Denison University; Denison Scientific Association. Granville, Ohio : [The University]

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