To make the sweet sulphur of Vitriol.

℞ Of the purest of Vitriol you can get, and dissolve it in water of May-dew; digest the solution the space of seven natural dayes in a vaporous Balneo, filtrate it the eighth day, and draw off again half of the Menstruum by distillation in the boyling Bal∣neo; draw out the Vessel whilst it is yet warm, and precipitate the sulphur contained in the Liquor with oyle of Tartar per d•liquium; let the liquor grow clear by little and little, then draw it off by inclination, then by several effusions of distilled Rain-water e∣dulcorate the remaining sulphur, and being exactly dryed, keep it for use. It is a very good Remedy against affections of the brest; it may be administred from ij. to x. graines in some Syrup, Lohoch, Lozenges, or Conserve appropriated to the Disease. It is also successfully used to mundifie and cicatrize evil Ulcers. It may al∣so be sublimated.