A description of new philosophical furnaces, or A new art of distilling, divided into five parts. Whereunto is added a description of the tincture of gold, or the true aurum potabile; also, the first part of the mineral work. Set forth and published for the sakes of them that are studious of the truth. / By John Rudolph Glauber. Set forth in English, by J.F. D.M.

To distil Butyrum out of Antimony, Salt and vitriol, like unto that, which is made out of Antimony and Mercury sublimate.

TAke one part of crude Antimony, two parts of common salt, and four parts of vitriol calcined white, beat all to powder and mix them wel, and so cast it in as you were taught to do with other materials, and there will come over a thick oyle of Antimony like butter, which may be rectified like any other oyle, that is made after the common way with Mercury sublimate, and is also the same with it in use, which use you may see in the first part: the same also can be made better and in a greater quantity in the furnace described in the first part, and also with less coals and time by the help of the open fire, because it endureth greater heat then in the second furnace.