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Report Made to the Hon. Thomas Corwin, Secretary of the Treasury: by Professor R. S. Mcculloh, of His Operations at the Mint of the United States, in Refining California Gold by His Zinc Method

Report Made to the Hon. Thomas Corwin, Secretary of the Treasury: by Professor R. S. Mcculloh, of His Operations at the Mint of the United States, in Refining California Gold by His Zinc Method

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Richard Sears Mcculloh

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