Neither will there any danger follow, whether it be given inwardly, or used outwardly, as in the accustomed use of other medicaments, and gargarisms; for it may daily, and truly without all danger be used at least three times with a wonderful admiration of a quick operation. _Oyle of_ Mars. Dissolve thin plates of Iron in rectified spirit of salt, take the solution, which is green, of a sweet tast, and smelling like fetid sulphur; and filter it from that filthy and feculent residence: then in a glass gourd in sand, abstract all the humidity (_viz._ with a gentle fire) which will be as insipid as rainwater, because the iron by reason of its dryness, hath attracted all the acidity to it self: but in the bottom will remain a mass as red as blood, burning the tongue like fire: it takes away all proud flesh of wounds, and that without all danger. It is to be kept in a glass close stopt from the air, lest it be resolved into an oyle, which will be of a yellow colour. But he that desires to have the oyle, may set it on a marble in a moist Cellar, and within a day it will be resolved into an oyle, which will be in colour betwixt yellow and red: It is a most excellent secret in all corroding ulcers, fistulas, cancer, _&c._ being an incomparable consolidator, and mundifyer. And it is not without profit mixed also with common water to wash the moist, fetid ulcers of the leggs; which cause tumours, by being applyed warm like a bath, for it dryes, and heals suddenly, if withal Purges be administred. It cures also any scab. That red mass (being yet unresolved) being put on the oyle of sand, or flints (of which in the second part) makes a tree to grow in the space of one or two hours, having root, trunk, and boughs: which being taken out, and dryed, in the test yields good gold, which that tree extracts from the earth, _i. e._ from the flints, or sand. Thou mayst if thou pleasest, more accurately examine this matter. _Oyle of_ Venus. Spirit of Salt doth not easily work upon Copper, unless it be first reduced into a calx, and that after this manner. Take plates of Copper made red hot in an open crucible, quench them in cold water, and they will cleave into red scales: then the remainders of the plates make red hot, and quench as before: do this so often, till thou hast got a sufficient quantity of the calx; which being dryed, and powdered, extract with the rectified spirit of salt, in sand, until the spirit of salt be sufficiently coloured with a green tincture, which you must decant, and filter; and then abstract from it the superfluous moisture, that there may remain a green thick oyle, which is an excellent remedy for ulcers, especially such as are Venereal, being applyed outwardly. _Oyle of_ Jupiter _and_ Saturn.