Take of the best lead, melt it, and pour it into a hole. When it is almost congealed, make a hole in it, and presently fill up the hole with quicksilver, and it will presently become congelated into a friable substance. Then beat it into a powder, and put it again into a hole of fresh melted lead as before. Do this three or four times. Then boil it, being all in a piece of linseed oil, the space of six hours. Then take it out and it will become malleable.
Note that after this it may, by being melted over the fire, be reduced into quicksilver again. A thin plate of the said mercury laid upon an inveterate ulcer takes away the malignity of it in a great measure and renders it more curable than before.
A plate of said mercury laid upon tumors would be a great deal better repercussive than plates of lead which surgeons use in such cases.
The powder of the friable substance of mercury before it be boiled in the oil is very good to be strewed upon old ulcers, for it does much to correct the virulency of them.
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