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Bate.] ℞ Vitriol of Mars p. iij. Arcanum duplicatum, p. v. Nitre, p. vij. mix them, and calcine in a Sand-heat to redness, S. A. It restores mightily a depraved Appe∣tite, prevails against Ca∣chexies, Fevers, Scurvy, Stone, Catarrhs, French-Pox, Con∣vulsions or Contractions, Pal∣sies, &c. it induces Sleep, provokes Sweat, and in some, it gently moves the Belly Dose, à gr. vj. ad xx.
Salmon.] § 1. What the Sal-Duplicatum is, (which also is called Arcanum Duplex) we shall refer you to what we have before discoursed on that subject in Cap. 9. Sect. 16. aforegoing of this Book.
§ 2. But that we might give you it according to the Mind of Zwelfer the Author thereof, we shall here give you Prescript of the Arca∣num Duplicatum from him. ℞ Salt of the Caput Mort. of Vitriol exposed for some Weeks in the open Air, ℥ij. Salt extracted out of the Ca∣put Mort. of Nitre, ℥iij. mix them, and put them into a Glass Cucurbit, and in Sand, increasing the heat gradually, till the bottom of the Cucurbit is red-hot, calcine for a day or two, then taking it forth, grind it upon a Porphyre, and keep it for use.
§ 3. And with this prepa∣ration it is, that he makes his Nitrum Cachecticum Cha∣lybeatum, in the same man∣ner as our Author, and ex∣actly in the same proporti∣ons: but at last he so much increases the Fire, as to melt the Ingredients into a Mass: then being cold, he breaks the Glass, and has a Rubi∣cund Stone, which he keeps use.
§ 4. 'Tis without doubt an excellent thing for the Di∣seases mentioned by our Au∣thor; and admirable against Melancholy, Pains and Ob∣structions of the Spleen, the Stone, and all Tartarous Di∣seases in any part of the Bo∣dy, Fevers, Agues, &c. and gives many other Benefits by an insensible Transpiration or Sweat, which it does with∣out trouble: in some it vo∣mits gently; in others it purges, but these Operations are but seldom.
§ 5. The Dose is à gr. x. ad ʒss. in some proper Li∣quor, as in an infusion of Steel in White-wine for two