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.

Fixation of the ☿ of {antimony}, as Monsieur de la Noüe wrought it at Paris.

TAke ☿ of {antimony} and ☉ ana ℥j. Oyl of Vi∣triol ℥vj. Distill to dryness; take what is {subli}med, and joyn it again to the Feces, and put the Oyl upon it again that distilled over; distill as before. Repeat this so often, till nothing more {subli}m, distilling every time in a new Retort; at the twelfth or fifteenth distillation, all the Matter will remaim in a red Powder.

Take Sulphur-vive, and Ashes of Alican ana equal parts, of which make a lixive with common {water}; filter and evaporate, and you shall have a Sulphurious Salt: Take of this Salt and of the said Powder ana gr. vj. ☿ of {antimony} ℥j. filings of ☉ ℥ij. mix and grind all well together, and put them into a Matr. with a long neck; make a {fire} about the mid∣dle of the neck of the Matr. in an Iron pan with a hole in the middle through which the neck of the Matr. may pass; let this {fire} be stronger than that below; continue the {fire} for six hours: Then cast your fixed Matter into a Bath of ☉.