But however it is certain, that such a sweet and green oyl cannot be made of vitriol by the force of the fire, but rather must be done by purification, after a singular way; for the Ancients many times understood purification for distillation: as it is evident, when they say, distill through a filtre, or through filtring paper: which by us is not accounted for distillation, but by them it was. However, this is true and very sure, that a great Treasure of health (or for the health of man) lyeth hidden in Vitriol: yet not in the common, as it is sold every where, and which hath endured the heat of the fire already; but in the Oare as it is found in the earth, or its mine. For as soon as it cometh to the day light, it may be deprived by the heat of the Sun of its subtle and penetrating spirit, and so made void of vertue; which spirit, if by Art it be got from thence, smelleth sweeter then musk and amber, which is much to be admired, that in such a despicable mineral and gross substance (as it is deemed to be by the ignorant) such a royal medicine is to be found. Now this preparation doth not belong to this place, because we treat here only of spirits, which by the force of fire are driven over. Likewise also, there doth not belong hither the preparation of the green oyl, because it is made without the help of fire. But in regard, that mention hath been made of it here, I will (though I kept it always very secret) publish it for the benefit of poor patients, hoping that it will do much good to many a sick man. For if it be well prepared, it doth not only cure perfectly every Epilepsie or Convulsion in young and old; and likewise readily and without fail killeth all worms within and without the body, as the Ancients with truth ascribed unto it; but also many Chronical diseases and such as are held incurable, may be happily overcome and expelled thereby, as the plague, pleuresie, all sorts of feavers and agues, what ever they be called, head-ach, collick, rising of the mother; also all obstructions in the body, especially of the spleen and liver, from whence _Melancholia Hypochondriaca_, the scurvy, and many other intolerable diseases do arise: Also the blood in the whole body is by the means thereof amended and renewed, so that the Pox, Leprosie, and other like diseases proceeding from the infection of the blood are easily cured thereby: Also it healeth safely and admirably all open sores and stinking ulcers turned to fistula’s in the whole body, and from what cause so ever they did proceed, if they be anoynted therewith, and the same also be inwardly used besides. Such and other diseases more (which it is needless here to relate) may be cured successfully with this sweet oyl; especially, if without the loss of its sweetness it be brought to a red colour; for then it will do more then a man dare write of it, and it may stand very well for a _Panacea_ in all diseases. _The preparation of the sweet oyl of Vitriol._