Munvvs saith to the Turba: The seekers after this Art must know that the Philosophers in their books have described gum in many ways, but it is none other than permanent water, out of which our precious stone is generated.* O how many are the seekers after this gum, and how few there are who find it! Know that this gum is not ameliorated except by gold alone. For there be very many who investigate these applications, and they find certain things, yet they cannot sustain the labours because they are diminished. But the applications which are made out of the gum and out of the honourable stone, which hasalready held the tincture, they sustain the labours, and are never diminished. Understand, therefore, my words, for I will explain unto you the applications of this gum, and the arcanum existing therein. Know ye that our gum is stronger than gold, and all those who know it do hold it more honourable than gold, yet gold we also honour, for without it the gum cannot be improved. Our gum, therefore, is for Philosophers more precious and more sublime than pearls, because out of gum with a little gold we buy much. Consequently, the Philosophers, when committing these things to writing that the same might not perish, have not set forth in their books the manifest disposition, lest every one should become acquainted therewith, and having become familiar to fools, the same would not sell it at a small price. Take, therefore, one part of the most intense white gum; one part of the urine of a white calf; one part of the gall of a fish; and one part of the body of gum, without which it cannot be improved; mix these portions and cook for forty days. When these things have been done, congeal by the heat of the sun till they are dried. Then cook the same, mixed with milk of ferment, until the milk fail; afterwards extract it, and until it become dry evaporate the moisture by heat. Then mix it with milk of the fig, and cook it till that moisture be dried up in the composite, which afterwards mix with milk of the root of grass, and again cook until it be dry. Then moisten it with rainwater, then sprinkle with water of dew, and cook until it be dried. Also imbue with permanent water, and desiccate until it become of the most intense dryness. Having done these things, mix the same with the gum which is equipped with all manner of colours, and cook strongly until the whole force of the water perish; and the entire body be deprived of its humidity, while ye imbue the same by cooking, until the dryness thereof be kindled. Then dismiss for forty days. Let it remain in that trituration or decocting until the spirit penetrate the body. For by this regimen the spirit is made corporeal, and the body is changed into a spirit. Observe the vessel, therefore, lest the composition fly and pass off in fumes. These things being accomplished, open the vessel, and ye will find that which ye purposed. This, therefore, is the arcanum of gum, which the Philosophers have concealed in their books.