A choice collection of rare secrets and experiments in philosophy as also rare and unheard-of medicines, menstruums and alkahests : with the true secret of volatilizing the fixt salt of tartar / collected and experimented by the honourable and truly learned Sir Kenelm Digby, Kt., Chancellour to Her Majesty the Queen-Mother ; hitherto kept secret since his decease, but now published for the good and benefit of the publick by George Hartman.

To fix a quarter part of ☽ into ☉.

TAke filings of ☽ ℥j. aaamate it with ℥iv. of ☿, put this aaa in a Retort, and distill off the ☿; take the ☽ and re∣aaamate it with the distilled ☿; distill as be∣fore. Repeat this three or four times, and the ☽ will be a Powder impalpable. Take {sal armoniac} and Cinaber ana ℥jss. ☿ {subli}mate ℥ss. grind and mix them well together with the ☽: Then {subli}me it with gentle heat, mix what is {subli}med with that which remaineth in the bottom, and Sublime as before. Then take both Feces and {subli}mate and mix it with Sul∣phur of ♀ and Crocus Martis, and of a Re∣gulus made of {antimony}, ♂, and ♀, ana ℥ss. grind all together with a little {sal armoniac}. Then Sublime it four times with gentle heat, adding every time a little {sal armoniac}, because it openeth the body of ♂ and ♀, and uniteth them with the ☽. Then grind all well together, and digest it in the following {water}. Take Nitre, Vitriol, ana lbj. {antimony}, Sulphur, Verdigrease, and Auri∣pigmentum ana ℥iv. Make an A. F. of this, s. a. Or take common A. F. lbj. distill and cohobate it three or four times upon the said Materials, giving strong {fire} at last: Then put your Powder into a Retort, and pour upon it so much of the A. F. as may

cover it the breadth of three fingers, distill it off with a gentle {fire}, then cohobate and distill three or four times: Then put fair {water} into the Retort, and digest for five or six days in Sand; then evaporate to dryness: Then take out this Matter and pulverize it, and weigh it. Then melt as much ♄ as you have Powder, and cast your Powder upon it by parcels, melt it with a strong {fire}, then let it stand in the {fire} until the {fire} go out of it self; then take it out, and you will find a Regulus in the Cruc. which Coppel, and then put the ☽ to separating {water}, and you shall have a fourth part of fine ☉.