A compendious body of chymistry, which will serve as a guide and introduction both for understanding the authors which have treated of the theory of this science in general: and for making the way plain and easie to perform, according to art and method, all operations, which teach the practise of this art, upon animals, vegetables, and minerals, without losing any of the essential vertues contained in them. By N. le Fèbure apothecary in ordinary, and chymical distiller to the King of France, and at present to his Majesty of Great-Britain.

The Sublimation of Vitriol.

WEE have just immediately before taught how the sulphur of Vitriol or its Metallick earth was to be separated by precipitation, and the sublimation teaches how the Flowers of it are to be severed from it, which are nothing else but the sub∣stance of Copper or Iron, which is found in all the kinds of Vi∣triol. Our purpose of giving this Preparation, is only to de∣monstrate to the Artist the truth of the composition of things. Take then equal parts of metallick earth or oker of Vitriol and Armoniack salt, and beat them to powder each by themselves; then mix them exactly together, and sublime in sand in a Cucur∣bite somewhat low, covered with a still-Head; give it first a slow fire, and encrease it by degrees, until you perceive that no vapour more ascends; then remove the fire, and let the Vessels cool, and take from the Limbeck-head and sides of the Cucurbite the sublimated matter, and having put it in a Matrass, pour upon it common water; then place the Vessel in B. M. and digest it in a moderate heat the space of 24 houres, and the water will dis∣solve the salt, and the substance of the metallick Martial and Vene∣rean Flowers falls to the bottom in subtile powder, which must be separated from the liquor loted and edulcorated, then dryed. It is a very good astringent and desiccative Remedy for all kinds of Ulcers, and chiefly for any pain in the eye. It breeds and re∣paires flesh, mundifies and siccatrizes better then any other Re∣medy.