THE AGENCY OF MANGANESE IN THE SUPERFICIAL ALTERATION AND SECONDARY ENRICHMENT OF GOLD-DEPOSITS IN THE UNITED STATES
Softcover
1910 · No Place
by Emmons, William H.
No Place: American Institute of Mining Engineers. Very Good. 1910. Softcover. 9-1/4" X 6-1/8" Ex-Library with a few stamps. This work is soft-bound in tan wrappers with black printing to the upper cover. The covers show some light toning and light edge-wear. The binding is solid. The contents are bright and clean. . (Inventory #: 74889)