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SILVER AND GOLD;

AN ACCOUNT OF

THE MINING AND METALLURGICAL INDUSTRY

OF THE UNITED STATES,

WITH REFERENCE CHIEFLY TO THE PRECIOUS METALS.

BY

ROSSITER W. RAYMOND, Ph. D.,

COMMISSIOXER OP MIXING STATISTICS ; PRESIDENT OF THE AMERICAN INSTITUTE OF MINING ENGINEERS ;
EDITOR OF THE ENGINEERING AND MINING JOURNAL ; AUTHOR OF/" MINES OP TAE WEST,"
AMERICAN MINES AND MINING," MINES, MILLS, AND FURNACES,"

ETC., ETC.

66

17

NEW YORK:
J. B. FORD AND COMPANY.

1873.

271

Entered according to Act of Congress, in the year 1873,

BY J. B. FORD AND COMPANY, in the Office of the Librarian of Congress, at Washington.

UNIVERSITY Press : WELCH, Bigelow, & Co.

CAMBRIDGE.

1. Y. PUCLIC LIBRARY

A

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