Lead Smelting and Refining, With Some Notes on Lead MiningNote 13 — SMELTING ZINC RETORT RESIDUES[13] By E. M. JohnsonReading editionAbstract of a paper in Western Chemist and Metallurgist, I, VII, Aug., 1905.◇Copy noteReturn to SMELTING ZINC RETORT RESIDUES[13] By E. M. Johnson