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 second Essence of Ambergrise.

AS there are many that will be glad to have open and dissol∣ved Amber without any mixture, and being a thing neces∣sary both in the state of health, and in case of sicknesse, so will we give here a way to make this dissolution plain and without af∣fectation.

℞ then ʒ ii. of very good Ambergrise, and grind them with ana of white Sugar-candy, until the two substances be well in∣corporated and reduced to an impalpable powder, and so exactly united as they seem to be but one body; being thus, put this mix∣ture in a Matrass, and pour upon it four parts of its weight of spi∣rit of wine three times drawn over salt of Tartar; then stop the Matrass, and put it to digest in a vaporous Balneo the space of seven dayes, in a slow and constant heat, stirring often the matter; and when the Artist shall see the dissolution and union of Salt, Sulphur, and spirit of Tartar made, so that the liquor be clear, yellow and pure, except some small feces proceeding from the Ambergrise, which will settle in the bottom of the Matrass, then let him fil∣trate the whole substance warm through a Cotton in a Viol, and stop it well, and then this essence being cooled, will coagulate it self and be congealed into a substance like unto whitish butter, which melts with the least touch of heat, even of the palm of the ••••nd, into a yellow Liquor very subtile, and very excellent to perfume Broths, Jellies, sweet-Meats, Conserves and all kind of Drinks; it may be used against swoonings, weaknesses, to streng∣then the stomach, as also to correct the ill smell of the mouth, or stinking breath. The Dosis may be from j. drop to viij. in the above mentioned Liquor.

Thus much we had to say to put an end to the Chymical prepa∣ration of An••mals, Vegetables and Minerals, thinking to have o∣mitted nothing of what can serve for an exact instruction of such as intend to apply themselves to the study and Art of Chymistry; wherefore we do exhort all Artists to follow punctually the path which we have traced and shewed them, that they may more and

more improve their skill in the search of Physical truths: and a∣bove all we exhort all Apothecaries, which are not yet initiated to the mysteries of Chymistry, to bestow seriously their labour and industry in that noble Art, without suffering themselves to be carried away by the unruly torrent of vulgar Opinion, swelling only with ignorance, presumption, malice and envy, that all of them may according to my lawful wishes, render themselves ca∣pable of serving the Publick, as I in my particular have endea∣voured to be in some manner useful to them: The only earnest desire I have for the good and ease of poor Ptients, and for instructing those of my Profession, having induced and provoked me, to communicate what experiences improved by thirty yeares labour and study have taught me, that all may redound to the glory of God, the good of my Neighbour, and the exaltation of Physick and true Pharmacy.