Item 506010A Manual on Fire Assaying and Determination of the Noble Metals in Geological Materials, Geological Survey Bulletin 1445
United States Department of the Interior, 1977. Softcover. 5.75 x 9.25 inches. 58 pages. Detailed description of techniques and methods of analysis. See photos for table of contents. Light staining and name of previous owner in ink on front cover. Very good condition.