Lumen de Lumine

As for the Epistle of the Fraternitie, I shall for satisfaction of the ordinary Reader, put it into English. I know some Doctors will think it no Advantage, but then they confesse their Ignorance: I can assure them, The Subject is no where so clearly discovered, and for the first abstruse preparation, there is no privat Author hath mention'd it, but here wee have it intirely, and withall most faithfully described. I confesse indeed their Instruction wears a Mask, it speaks in Tropes, but very plaine and pervious, and the English of it is This.