SMELTING PROCESSES FOR THE EXTRACTION OF SILVER AND GOLD FROM THEIR ORES; ERECTION OF SILVER-LEAD SMELTING WORKS IN MEXICO

London 1893. first edition. Octavo, removed from the Minutes of Proceedings of the Institution of Civil Engineers, Vol. CXII and rebound in later wraps. pp. 112-206 with 2 engraved foldout plates, 1 text woodcut illustration, appendix, discussion and correspondence on article. Near Fine, no ownership marks.