The manufacture of iron, in all its various branches : Including a description of wood-cutting, coal digging, and the burning of charcoal and coke; the digging and roasting of iron ore, the building and management of blast furnaces, working by charcoal, coke, or anthracite; the refining of iron. Also a description of forge hammers, rolling mills, blast machines, hot blast, etc. etc. To which is added an essay on the manufacture of steel /