Inside Out Library · Explore

De re metallica (1912)

Agricola, Georg, Hoover, Herbert · leaf 394

An illustration from De re metallica, 1912, leaf 394
The cakes which are made of copper smelted from schist are first thrown upon the ground and broken , and then placed in the furnace on bundles of faggots , and these are lighted . These cakes are generally roasted seven times and occasionally nine times . While this is being done , if they are 22…

e-rara · Eisenbibliothek Schlatt · No known copyright restrictions. Free to use for anything.

More pictures from De re metallica

More like this