Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 412
ep- arated and treated in a peculiar way. The matt, which contains but little copper, i- returned to the cal- ore, and smelted along with it. In this operation fluxes arc added in case the ore dtain sufficient flux for smelting. Ir. .ti forms the best flux, and for th< coppi r pyrites, which… … - 1 L7
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
