If you take one part of sulphur, two parts of nitre, and three parts of vitriol, and distill them, you will get a graduating _Aqua fortis_, which smelleth strongly of sulphur; for the sulphur is made volatile by the salt nitre and vitriol. It is better for separating of metals, than the common _Aqua fortis_. If silver be put in, it groweth black, but not fixed; some of it poured into a solution of silver a great deal of black calx will precipitate, but doth not abide the tryal. You may also abstract a strong _sulphureous_ volatile spirit from it, which hath like vertue as well internally as externally for bathes, and may be used like unto a volatile spirit of Vitriol or Allome. _Of the Nitrous spirit of Arsenick._ If you take white Arsenick and pure salt nitre of each a like quantity ground into fine powder, and distill them, you will get a blew spirit, which is very strong, but no water must be put into the receiver, else it would turn white, for the Arsenick, from which the blew cometh, is precipitated by the water. This spirit dissolveth and graduateth copper as white as silver, and maketh it malleable but not fixed. The remaining _Caput Mortuum_ maketh the copper white, if it be cemented therewith, but very brittle and unmalleable, but how to get good silver out of Asenick and with profit, you shall find in the fourth part. In physick the blew spirit serveth for all corroding cancrous sores, which if they be anointed therewith, will be killed thereby, and made fit for healing. _To make a spirit of Sulphur, crude Tartar and Salt nitre._ If you grind together one part of Sulphur, two parts of Crude Tartar, and four parts of salt nitre, and distill it Philosopher-like, you will get a most admirable spirit, which can play his part both in Physick and Alchymy. I will not advise any body to distill it in a retort; for this mixture, if it groweth warm from beneath, it fulminateth like Gunpowder; but if it be kindled from above, it doth not fulminate, but onely burneth away like a quick fire; metals may be melted and reduced thereby. _To make a spirit out of Salt of Tartar, Sulphur, and Salt-nitre._ If you take one part of salt of Tartar, and one part and a half of Sulphur, with three parts of salt nitre, and grind them together, you will have a commposition, which fulminateth like _Aurum fulminans_, and the same also (after the same manner as above hath been taught with gold) may be distilled into flores and spirits, which are not without special Vertue and Operation. For the corruption of one thing is the generation of another. _How to make a spirit of saw-dust, sulphur and salt nitre._