The Metallurgy of Lead and the Desilverization of Base Bullion ... Fourth edition
A technical manual on lead smelting and the desilverization of base bullion by Heinrich Oscar Hofman, issued in a fourth edition by the Scientific Publishing Co. in 1895 for metallurgists and works engineers. The plates are line-engraved plans, elevations and sections of furnaces, flues and roasting hearths, with dimension lines and part letters—useful for schematic diagram work and industrial line ornament.
