The Sincerely Discovered Art of Assaying and Refining of the Venetians

a fire, roast it until it becomes brown, quench it with the lye, pound it small, and flow the mountain Referring to the mineral content or ore body. forward onto it. Take the flux-powder, as mentioned above, and take the king and pour it again.

How one should make burnt salt.

Take common salt as much as you want, then take human urine and lime, and make a lye. Put it into an iron pan, boil it until it becomes salt, and hard.

Three kinds of salt

A large curly brace follows the heading "Three kinds of salt," grouping the three specific types listed below.
Burnt salt,
Boiled salt,
Albuch salt.

To separate silver from lead.

Take antimony and let that flow with lead, then the antimony comes to the top, which one knocks off.

What is necessary for testing.

When someone wishes to test, they must first make the cupels in a cupel-mold, which one buys from the brass-merchants. So take bone-ash (one must take more of this than the bone-ash, from which one has made lye Referring to the process of purifying or preparing the ash.), mix it with beer, not too moist, otherwise it does not go out of the cupel-mold;