Take good and pure crude Tartar, whether it be red or white, it matters not, make it into fine powder, and when the distilling vessel is red hot, then cast in with a ladle half an ounce and no more at once, and so soon as the spirits are gone forth and setled, cast in another ℥ ss. and this continue, till you have spirit enough, then take out the remainder, which will look black, and calcine it well in a crucible, and put it in a glass retort, and pour the spirit that came over together with the black oyl, upon it, drive it in sand at first gently, and the subtlest spirits will come over, and after them phlegme, at last a sowre vinegar together with the oyl, whereof you must get each by it self. But if you desire to have the subtle spirit which came over first, more penetrating yet, then you must take the _Caput Mortuum_ that staid in the retort, and make it red hot in a crucible, and abstract the spirit once more from it, and the calcined Tartar will keep the remaining moistness or phlegm, and only the subtlest spirit will come over, which is of a most penetrating quality, whereof from half a dram to an ounce taken in wine or any other liquor provoketh a quick and strong sweat, and it is a powerful medicine in all obstructions, and most approved and often tryed in the plague, malignant feavers, scurvy, _Melancolia Hypochondriaca_, collick, contracture, epilepsy and the like diseases. And not only these mentioned diseases, but also many others more, which proceed from corrupt blood under God may successfully be cured with it. The phlegm is to be cast away, as unprofitable: the vinegar cleanseth wounds: the oyl allayeth swelling and pains, and doth cure scabs, and disperseth knobs that are risen upon the skin, as also other excrescencies of the same, if it be used timely, and the use thereof be continued.