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Bate.] ℞ Calcin'd Flints p. iij. Salt of Tartar calcin'd with Nitre ℥iv. mix them exactly; and put them by degrees into a red hot Crucible, urging the Fire S. A. afterwards ex∣pose the Mass to the Air, that it ••••y melt per deliquium, S. A. It cuts Tartarous Mu∣cilage, resolves the Stone, and powerfully opens Ob∣structions. Dose, gut. 20. ad 30. in some fit Liquor.
Salmon.] § 1. Schroder says it may be given to a ℈j. but he has a Cream or Oil of Flints described in the second part of Glauber's For∣naces Pag. Mea. 44. If you keep it long in a Cellar it lets fall a Settling to the bottom, and sends an Oil to the top; which must be so long eva∣cuating from the Jelly, as any Liquor will ascend: and then be sweerned: this Oil or Cream, Clossaus says may easily be dissolved in any Liquor.
§ 2. In the place cited Glauber takes four times as much Salt of Tartar, as of calcin'd Flints, which ex∣treamly differs from this of our Author, the exact Pre∣script you have in our Poly∣graphices, Lib. 3. Cap. 29. Sect. 57. conformable to Glauber's Mind.
§ 3. In the making of it, he shews how to get a power∣ful Spirit out of the Salt of Tartar, of wonderful Ver∣tues and Effects, of which it is not our business here to speak, that being designed for the Officina Chymica, next to come forth after this work.
§ 4. But the remainder after that Spirit is extracted, is the thing of which our Experiment is to be made; What looks (says he) trans∣parent like Glass is nothing else but the most fixed part of the Salt of Tartar and Flints, which joyning them∣selves in the Heat, turn thus to a soluble Glass, in which lies a great Heat and Fire.
§ 5. As long as it is kept from the Air it cannot be perceived in it; but if you pour Water upon it, then its secret heat will discover it self.
§ 6. If you reduce it to a fine Pouder, in a hot Mor∣tar, and lay it in a moist Air, it will dissolve into a thick and fat Oil, leaving some Feces behind.