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Being the Act Regulating Mines of Coal, Stratified Ironstone, Shale, and Fireclay. With a Digest and a Reprint of the Statute, and Explanatory Notes:..

With the Mines and Other Localities Where Found; and Brief Remarks On the Mode of Occurrence of Some of the Principal Metals and Ores

Their Mode of Occurrence, Age, and Origin, and the Methods of Searching for and Working Them, With a Notice of Some of the Iron Ores of Spain