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.

To prepare the Dew of Vitriol.

℞ As much as you will of purified Vitriol, put it in a broad mouth Cucurbite only eight inches high; place it in B. M. and having covered it with a Limbeck-head, and fitted a Recipient, the joints well luted with a bladder wetted with white of Eggs, give it fire by degrees untill the water of the Balneo doth boyl, and thus proceed in this distillation until this degree of heat drives no more liquor, and no more drops will fall. What you finde in the Recipient put in a bottle, which stop with Wax and Bladder, by reason of a little of the volatile spirit mixt in this Dew, and wherein doth consist its greatest vertue; it is given from ℈ j. to ℈ ij. and iij. in Broth or some other convenient Liquor, to those that are troubled with Megrim and other paines in the Head; it allayes the heats and ebullitions of the blood, and strengthens the entrals.