The use of this fire, as also of the volatile spirit of the same,
and of its flegm, thou shalt find described in the second part of my
Furnaces, and among other Authours; so that the repetition thereof is
here superfluous, this is onely to be known that this fire being onely
besmeared or anointed with a feather on all uncurable and Cancerous or
eating Ulcers, kills the Poyson, and causeth that such Ulcers do very
easily admit of cure, if so be the Escharre be but first removed by the
applying some ointment or emplaister which cures adustion or burning.
For this oyl burns up all wild or forreign flesh, and that which (as
proud) lifts up it self with an abounding poyson, like unto a certain
bright burning Iron, and separates all evil and hurtfull flesh from the
good and sound flesh.