Excerpt:

Whoever wishes to possess this secret Golden Fleece, which has virtue to transmute metals into gold, should know that our Stone is nothing but gold digested to the highest degree of purity and subtle fixation to which it can be brought by Nature and the highest effort of Art; and this gold thus perfected is called "our gold," no longer vulgar, and is the ultimate goal of Nature. These words, though they may be surprising to some of my readers, are true, as I, an adept, bear witness; and though overwise persons entertain chimerical dreams, Nature herself is most wonderfully simple. Gold, then, is the one true principle of purification. But our gold is twofold; one kind is mature and fixed, the yellow Latten, and its heart or centre is pure fire, whereby it is kept from destruction, and only purged in the fire. This gold is our male, and it is sexually joined to a more crude white gold -- the female seed: the two together being indissolubly united, constitute our fruitful Hermaphrodite. We are told by the Sages that corporal gold is dead, until it be conjoined with its bride, with whom the coagulating sulphur, which in gold is outwards, must be turned inwards. Hence it follows that the substance which we require is Mercury. Concerning this substance, Geber uses the following words: "Blessed be the Most High God who created Mercury, and made it an all-prevailing substance." And it is true that unless we had Mercury, Alchemists might still boast themselves, but all their boasting would be vain. Hence it is clear that our Mercury is not common mercury; for all common mercury is a male that is corporal, specific, and dead, while our Mercury is spiritual, female, living, and life-giving. Attend closely to what I say about our Mercury, which is the salt of the wise men. The Alchemist who works without it is like a man who draws a bow without a string. Yet it is found nowhere in a pure state above ground, but has to be extracted by a cunning process out of the substance in which it exists.

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Let those who aim to purify Mercury by means of salts, faeces and other foreign bodies, and by strange chemical processes, understand that though our water is variousy composed, it is yet only one thing, formed by the concretion of divers substances of the same essence. The components of our water are fire, the vegetable "Saturnian liquid," and the bond of Mercury. The fire is that of mineral Sulphur, which yet can be called neither mineral nor metallic, but partakes of both characters: it is a chaos or spirit, because our fiery Dragon, that overcomes all things, is yet penetrated by the odour of the Saturnian liquid, its blood growing together with the Saturnian sap into one body which is yet neither a body (since it is all volatile) nor a spirit (since in fire it resembles melted metal). It may thus be very properly described as chaos, or the mother of all metals. From this chaos I can extract everything — even the Sun and Moon — without the transmutatory Elixir. It is called our Arsenic, our Air, our Moon, our Magnet, and our Chalybs: these names representing the different stages of its development, even unto the manifestation of the kingly diadem, which is cast out of the menstruum of our harlot. Learn then, who are the friends of Cadmus; who is the serpent that devoured them; what the hollow oak to which Cadmus spitted the serpent. Learn who are the doves of Diana, that overcome the green lion by gentleness: even the Babylonian dragon, which kills everything with its venom. Learn, also, what are the winged shoes of Mercury, and who are those nymphs whom he charms by means of his incantations.