Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 412
- 1 L7 … The lined in the first eration is impure, and classes not higher than a rich matt Ited ore; its granules consist of copper, iron, sulphur, <fea This in - onc6 calcined in the calcining-furnace, and thei 1 to another smelting, by which,operation a btaim I. The I however, not yet fine copper; it…
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
