It is a Catholic and Universal Menstruum, and, in a word, may be called (Ignis-Aqua) a Fiery Water, an uncompounded and immortal ens, which is penetrative, resolving all things into their first Liquid Matter, nor can anything resist its power, for it acteth without any reaction from the patient, nor doth it suffer from anything but its equal, by which it is brought into subjection; but after it hath dissolved all other things, it remaineth entire in its former nature, and is of the same virtue after a thousand operations as at the first.