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.

Another way to Extract the ☿ of {antimony}.

TAke lbj. of {antimony} in subtil Powder, boyl it in a Lixivium made of Quick-lime and Pot-Ashes, let it boyl for two hours, then let it settle, and decant the clear; then put more Lixivium upon the {antimony}, boyl it as before. Repeat this so often till there be no more Sulphur in the {antimony}, which you may know by pouring distilled Vinegar into the decanted Lixivium, when there Precipitates no more Sulphur, or when it changes no more. Then edulcorate well the residue of the {antimony}, and dry it, then grind it with ℥iv. of Salt of Tartar, and as much of {sal armoniac}, and ℥viij. of Vitriol; put this to Sublime with a gentle {fire} at first, and at last very strong {fire} for seven or eight hours, and all will be Sublimed.

Make this Sublimate, and mix it with equal weight of Quick-lime, distill it in a Retort into a Recipient almost full of {water} impregnated with {sal armoniac}, and you shall have a running ☿ of {antimony}. In the same manner you may Extract the ☿ of ♄, taking Calx of ♄ instead of {antimony}.