An edition of The Nohl smelting furnace (1867)

The Nohl smelting furnace

invented by Eugene William Nohl, late sup't La Salle Zinc Works : patented by E.W. Nohl and E. Daniels, May, 1867 : adapted to smelting iron and other metallic ores, and to engine boilers using inferior coal, peat, and other fuel; saving thirty to fifty per cent, and preventing smoke

By Edward Daniels