Sand, or salt of Tartar: which is done by calcining of Tartar, within a pot of Earth of _Paris_, not leaded in a fire of reverberation, or in Charcoles: afterwards dissolve it, with hot water and filter, and congeal it, and there will remain white Salt which will resolve it self into a liquor called the oil of Tartar; _or after it is well calcined let it resolve_ to it self in moisture. _This Liquor is of great efficacy to quench and root out all sorts of wildfires. But of the sands that remain in the bottom, without being unwilling to rise in Crusts: there will be extracted another more exquisite oil and lesse adustible._ Tartar may be governed after another fashion. Wee insist therein in this respect, because it shews to have I know not what agreement with Soot: for as Soot is an excrement of fire, so are Tartar and lees, the same of wine, that have great affinity with fire. Take then of Tartar in Powder within a leaded earthen vessell, and cast hot water there on stirring it strongly with a stick; and letting it rest a little, put out the water; with that which it hath gotten from the Tartar: which is after the form of slime within another dish: and put new luke warm water upon the Tartar: reiterating as aforesaid so many times that the water may come forth neat & clear; which will be perfected at the fifth or sixth time. And in the bottom there will remain the foresaid sand, which being dryed disolves it self within the distilled vinegar, and not into common water. _Aqua vitæ_ likewise dissolves in a little space, when the one and the other would take no more. Wash that which remaines, with common water, then dry it slowly, and having put it into a Cornue with a sufficient good expression of fire graduating it by small pieces, there will be extracted an odoriferous oil, as of _aspic._ one of _Raimond Lullius_ his secrets: which is one of his principall keyes, and entries into Metallick dissolutions. Take the foresaid evacuations, and elevate the Crusts as aforesaid. There are too many things to speak of Tartar, and that which wee have now set down is not vulgar, but the rarest of our experiments; Of vinegar, after that the clear shall bee distilled, and that the white fumes shall begin to appear, which is his adustible oilynesse, put the dregs that shall remain (for you must have a great quantity) in a cellar or other fresh place, and in five or six dayes there will be procreated small Crystalline little stones; separate them from their residences, by ablutions of common water, and dry them; and you shall draw thereout an oil of no small importance, so great certainly and admirable are the substances, which the art of Fire extracts from Wine. [Sidenote: _Lignum vitæ._]