Turpethum Minerale verum, or the true Turbith Mineral.

THE true and genuine Turbith Mineral is not (by the best Chymists) prepared from crude Mercury with Aqua fortis, but from sublimate, in the following manner: Take of the best sublimate Mercury what quantity you please, dissolve it in Aqua coelestis warm, filter the solution often, which be∣ing done, put the filtred Liquor into a Glass, and pour upon it by drops so much Oyl of the Salt of Tartar as is requisite, till you see a red Powder in the bottom of the Glass, then pour off the Liquor, and keep the red Powder, edulcorate that with common water, till it hath lost all its sharpness and saltness, then pour upon it Aqua Mellis six or seven times well rectified, and let this be repeated as many times, at last take the Powder (being dry) and pour upon it Al∣kohol of Wine that it may be well moistned, set the Page  22 humidity on fire, and keep it stirring with an Iron Spatula, till all the Wine be consumed, and so you have Turbith Mineral truly prepared, whose excel∣lent virtue is known almost to all, neither shall I en∣large further upon it. The Dose is from four or five grains to six and seven in some convenient Vehicle.