The Second Part of Philosophical Furnaces

Wherein is Described the Nature of the Second Furnace; by the help whereof, all volatile, subtle, and combustible things may he distilled; whether they be Vegetables, Animals, or Minerals, and that after an unknown and very compendious Way; whereby nothing is lost, but even the most subtle spirits may be caught and preserved, which else without the means of this Furnace is impossible to be done by Retorts or other Distilling Instruments.