SILVER AND GOLD: AN ACCOUNT OF THE MINING AND METALLURGICAL INDUSTRY WITH REFERENCE CHIEFLY TO THE PRECIOUS METALS. BY ROSSITER W. RAYMOND, PH. D., COMMISSIONER OF MINING STATISTICS; PRESIDENT OF THE AMERICAN INSTITUTE OF MINING ENGINEERS; EDITOR OF THE ENGINEERING AND MINING JOURNAL; AUTHOR OF "MINES OF THE WEST," ETC., ETC. NEW YORK: J. B. FORD AND COMPANY. 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. |