PART IV

SMELTING IN THE BLAST FURNACE

MODERN SILVER-LEAD SMELTING (ARTHUR S. DWIGHT) 73

MECHANICAL FEEDING OF SILVER-LEAD BLAST FURNACES (ARTHUR S. DWIGHT) 81

COST OF SMELTING AND REFINING (MALVERN W. ILES) 96

SMELTING ZINC RETORT RESIDUES (E. M. JOHNSON) 104

ZINC OXIDE IN SLAGS (W. MAYNARD HUTCHINGS) 108