THE ASSAYER'S GUIDE.

ASSAYER'S GUIDE;

OR,

PRACTICAL DIRECTIONS TO ASSAYERS,
MINERS, AND SMELTERS,

FOR THE

TESTS AND ASSAYS, BY HEAT AND BY WET PROCESSES.

OF THE

ORES OF ALL THE PRINCIPAL METALS,

OF

GOLD AND SILVER COINS AND ALLOYS,
AND OF COAL &c.

BY

OSCAR M. LIEBER,

LATE GEOLOGIST то THE STATE OF MISSISSIPPI

PHILADELPHIA :

HENRY CAREY BAIRD & CO.,
INDUSTRIAL PUBLISHERS, BOOKSELLERS AND IMPORTERS,

810 WALNUT STREET.