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THE ASSAYER'S GUIDE.

ASSAYER'S GUIDE;

OR,

PRACTICAL DIRECTIONS TO ASSAYERS,

MINERS, AND SMELTERS,

POR TIE

TESTS AND ASSAYS, BY HEAT AND BY WET PROCESSES.

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GOLD AND SILVER COINS AND ALLOYS,

AND OF COAL &c.

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PHILADELPHIA :
HENRY CAREY BAIRD & CO.,
INDUSTRIAL PUBLISHERS, BOOKSELLERS AND IMPORTERS,
810 WALNUT STREET.

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