{Recipe} Stellæ {iron} signati optimi, modo Philosophico præparati, & {sal ammoniac} ana {tartar} bene Calcinati, extracti, filtrati, & ad salem album redacti, partem tertiam respectu Stellatis. Contunde simul Exactè omnia ac Sublima, cohobando quater. NB. 1. This is done in a glasse Retort igni nudo. 2. He perfects each sublimation in about an houre, in an indifferent Fire. 3. This Sublimate may be dulcify'd by the Affusion of warme water which having stood upon it till it have acquir'd a saltnesse, is to be decanted, & fresh pour'd on, till the Water can extract no more saltnesse; then the Sulphur is to be dry'd & kept for use. 4. He sometimes to one part of this Sulphur addes foure parts of Colcotar, which he sublimes together, cohobating it thrice. (The fæces runne per deliquium into an Oyle.)