That therefore it may be brought forth into open view, and be rendred visible, we must make use of the following operation.
XXII. The manner of manifesting the fire of the Vine.
Fill thou a Glass Retort with common Tartar, and distill forth the volatile spirit and oyl, the which thou shalt separate after a due manner. Great virtues are in this oyl, whereof I have made mention in the second part of my Furnaces. The spirit is to be rectified in B. that the fiery substance onely may depart, and the unprofitable flegm remain behind; the rectified spirit is to be poured on the fixed Salt, (residing in the Retort, which must be first calcined by a strong fire and made fiery) and from thence again distilled, that the fixed Salt may retain the rest of the unprofitable flegm, and the spirit attain the greater fiery virtues for the performing of wonderfull effects in medicine, the which my writings do teach.
XXIII. Another manner of extracting or drawing forth a far more stronger fire out of Tartar.
Dissolve thou that Alcalizated Salt from which the spirit was abstracted in rectifying in a little water, that it may become a very sharp Lixivium or Lye; pour one pound of this Lixivium on two pounds of white Tartar in a Gourd, and that being reduced into powder, put on a head which being well luted on with clay, set it in sand and kindle a fire by degrees, if thou shalt rightly work thou shalt obtain a most subtile fire, one drop whereof doth burn the tongue, as if it had been touched with a burning Iron.
How wonderfull things may be effected by this fire, I have already shown in other places of my writings.
XXIV. A manner of drawing forth as yet a more vehement fire out of Tarter.
Take of crude Tartar and the Regulus of Mars, or the purest metallick part of iron, the scoria being separated, equal parts, the which thou shalt mix by beating together, put them in a crucible with a cover so well fenced with clay that it may admit of no air, keep them in a bright burning fire for the space of an hour, then take them away.
From all these particulars it is made known to every one that a vehement fire lies hidden in vegetables readily serving for the effecting of many admirable things in Medicine, Alchymy and other arts, from the declaring whereof the shortness of time and this treatise, commands us at this time to cease. But moreover we must see whether living creatures also are potent in the same fire, and in what respect any one may be made partakers of the same.