CHAP. XXVI.
The Way of preparing yet another famous Medicine Universal of Gold.
Dissolve one part of Nitre, in four parts of Spirit of Salt, diligently rectified. In this Water dissolve as much Gold as you will. Upon this Solution leisurely at times, and drop after drop, pour on of Oil of Tartar so long, as untill both those contrary Natures of the Aq. Regia, and Oil of Tartar, shall be united and quiet. Then, if you abstract all the Phlegm, with the Sol will remain a Salt. This Salt, with the Gold, put into a little coated glass Body; yet first mix with them of burnt Bone as much in weight, as the Salt and Sol did weigh. The Bones are onely added, that the Gold may not be separated from the Salt, or be precipitated into a Mass and flow. Place the Glass, with this mixture, in Sand, augmenting the Fire gradually, untill the Glass in the Sand be obscurely Red; in which degree of Fire, if you detain it the space of six hours, the fusible Salt will penetrate the hard Gold, and from it extract its best strength, and thence wax Red. Which, when all is cold, take out of the Glass, and by the help of Spirit of Wine extract from that Red Salt all its Tincture; which you may administer in grievous Diseases, according as your Judgment shall inform. If you reduce the extracted Gold by the help of Borax, you will find your Gold pale.
The Way of Extracting a yellow Tincture from white Nitre.
By Retort distill a strong Spirit from pure salt Nitre, mixt with burned Earth. Which Spirit, lest it should not be strong enough, dephlegmate. This Spirit in Distillation ascends Red, but when cold appeareth White; yet in it is absconded a Redness, which will be revealed the following way. We see that if any thing fall from those, who labour about Aqua Fortis, into it (whether that fallen in be a piece of Skin, Hair, or any part of the Nails of the Fingers) the same is tinged thereby with a golden Colour. The reason of this Colouring is this: All superfluities of Nature (as the Skin, Nails of the Hands and Feet, all Hairs and Hoofs of Animals, and Feathers of Birds; which being old, fall off, and new succeed in their place) are endued with power of cleansing the Humane Body, whensoever they are prepared for Medicinal use; and that by reason of the abundance of Volatile Salt contained in them, and other such like Entities. For Volatile Salt is of such a Nature, as Salt of Urine, by which all corrosive Spirits are mortified and edulcorated. Hence it is, that when one drop of a Nitrous Spirit falls upon the Skin, or a Nail of the Finger, it is mortified and discovered by such a Volatile Salt as lay hid in it; which otherwise happens not in all other Subjects, which are void of such a Volatile Salt.
Now follows the Process.
Recipe of the Hairs either of a sound Man, or of any Animal, very well washed and cleansed from all filth, four ounces. Upon these pour of most strong and well rectified Spirit of Nitre, one pound, and the Spirit will totally dissolve the Hairs. Upon that Solution pour by degrees so much Oil of Tartar, as untill all the Spirits of Nitre be mortified and totally deprived of their Corrosive power. But you should not cease to pour on Oil of Tartar, untill the Spirit hath well acquired a Golden Colour. This being seen, filter the Solution through brown Paper, in which the Fæces will remain, which notwithstanding will scarcely weigh half a dram; because the Spirit of Nitre hath almost dissolved all. If from this Liquor in a Glass-body set in Balneo, you abstract all the unprofitable Phlegm, in the bottom will remain a Red Salt; on which, if you pour good Spirit of Wine, some Fæces will again be left in the bottom, which you may cast away as unprofitable. Moreover, if one half of that Spirit of Wine be abstracted from the Tincture, a yellow Oil is acquired; which if you rub upon good Silver, that will look as yellow as if it were good Gold. If you shall take of this Tincture, although it is so Volatile, from three, six, nine, to twelve drops, it strongly expells Sweat and Urine, cures the Jaundies, yields relief in the Dropsie; in Feavers it provokes Sweat, and in the Pestilence or other Diseases, where Sweating is needfull. I attempted to fix this Tincture; but it was an Operation of no small time; therefore I was weary of proceeding, and absolving the Work begun. If any one be so patient as to fix this Tincture, he, after his Work is ended, will have whereof to rejoyce. Touching this Operation, Philosophers feigned the venomous Dragon to be a watchfull Keeper of the Golden Fleece; and that the same could not be taken away before the Dragon was brought to sleep by a Soporiferous Medicine, by which he should be rendred insensible and fixed. But undoubtedly some opinionative Men will say, that this yellow Tincture is acquired from the Hairs, Wool, or Feathers, rather than from the Nitre. The Opinion of such Men I thus refell. If any one dissolve Hairs, Wool, or Feathers, by the help of Spirits of Salt, Sulphur or Vitriol, he will acquire a white Solution: and if he mortifies the Spirit of Salt or Vitriol with Oil of Tartar, yet shall no yellowness appear, but all remain white. And such white Salt, which comes from the Spirits of Salt and Vitriol, hath also its use in Medicine. The reason of that is especially, because Hairs in themselves contain a very Medicinal Salt, which cannot possibly any other way be obtained, than by dissolving with the help of Aqua Fortis, or of their re-mortification and reduction into Salt by the benefit of Alcali’s.
After this manner from many Animals, by the help of Spirit of Nitre, may be extracted yellow Tinctures or Salts, which are very efficacious in Medicine.
Such Cast-skins of Serpents, as are commonly found in Fields, and among heaps of Stones, are famously Medicinal against Poysons, the Pestilence, and all other venomous Diseases.
The Teeth of Serpents, and Teeth of Mad Dogs and Wolves, have a Medicinal Efficacy against all venomous Bitings of Animals. Also they help the Stomach against all Feavers.