To reduce sulphur into a sowre spirit or oyl hath been sought hitherto by many, but found by few. Most of them made it in glass-bells, but got very little that way; for the glasses being quickly hot, could not hold the oyl, so that it went away in a smoak. Some thought to get it by distilling, others by dissolving, but none of all these would do the feat. Which is the reason why now-adayes it is found almost no where right, and in the Drugsters and Apothecaries shops they usually sell oyl of Vitriol instead of it, which by far is not to be compared in vertue to the oyl of sulphur. For this is not onely of a far pleasanter sowre taste, but in efficacy also much exceeds the other. And therefore being of so great use both in Physick and Alchymy, as in all hot diseases, mingling the patients drink therewith, till it get a pleasant sowre tast, for to quench the intolerable drowth, to strengthen the stomach, to refresh the lungs and the liver: Also externally for to cure the gangreen: Also for to Chrystallise some metals thereby, and to reduce them into pleasant vitriols, useful as well in Alchymy as Physick: I thought good to set down the preparation, though it be not done in this our distilling furnace, but in another way by kindling and burning it as followeth. Make a little furnace with a grate, upon which a strong crucible must be fastned resting on two iron bars, and it is to be ordered so that the smoak be conveighed (not above by the crucible, but) through a pipe at the side of the furnace: the crucible must be filled with sulphur even to the top; and by a coal-fire without flame be brought to burn and kept burning. Over the burning sulphur, a vessel is to be applyed of good stony earth like unto a flat dish with an high brim, wherein is alwayes cold water to be kept, and whereunto the burning sulphur doth flame: which thus burning, its fatness consumeth, and the acid last is freed and sublimed to the cold vessel, where it is dissolved by the air, and in the form of a sharp oyl runs from the hollow vessel into the receiver, which must be taken off sometime, and more sulphur supplyed instead of that which hath been consumed, to the end that the sulphur may still burn in the crucible: and beat with the flame to the cold head: and within few dayes you will get a great quantity of oyl, which else by the (_campana_) glass-bell in many weeks could not have been done.