continues from previous page put it together into a tub, pour water upon it, stir it three times a day, let it stand for 14 days. Afterward, strain it off clearly, and take the lye that runs off at the top into a kettle, and boil it down until it becomes a salt; put the same into a glass, and seal it at the top.

If you have a stone of ore,

and do not know whether it bears silver or gold,

then assay it thus:

Pound the ore into small pieces, and put it into an earthen crucible; to it add lead in the appropriate measure, and make the ore liquid, and let it boil well. Afterward, throw into it powder of burnt St. John’s-wort, so it separates from one another.

You should separate gold from tin as follows.

Take mercury and ashes of juniper-wood, also pound snakeweed original: "Natter-Wurzel", each the size of a hazelnut, and throw it into the melted tin. And when you wish to separate it, take powder of a white adder, and throw it into it, namely as much as you can hold on a good knife-tip, so it separates truthfully upon my honor.

To separate silver from lead.

Take a poisonous toad, burn it into powder