On the spirit of Sal Armoniac In alchemy, a "spirit" refers to the volatile, vaporous essence of a substance. "Sal armoniac" is ammonium chloride, a vital salt used for cleaning metals and in various chemical reactions.

You must distill that salt; specifically, the Sal Armoniac prepared for this purpose.
Take: the old urine of boys, speak of it original: effabere - likely meaning to describe or account for the amount, and boil it. And while boiling, remove the scum original: nublam, literally "the cloud" that floats on top until it is pure and clean. Then remove it from the fire and let it stand in some vessel for the whole night. In the morning, strain it for the pure urine and separate it from the dregs, and throw away the dregs. Then, for every 8 parts of urine, add one part of quicklime original: calcis vive - calcium oxide, a caustic alkaline substance which has been ground; let it be mixed well with a rod original: bacto, a shorthand for baculo and let it sit for three days and nights. Every day in the morning, let it be stirred well with the rod so that the whole power of the lime descends into the urine. Then allow it to settle until the lime falls to the bottom of the vessel and the clear urine remains above the dregs. When it has stood clear above the dregs, draw it off, separating it from the dregs by straining through a thick, clean linen cloth and leather.

Then take the dregs of wine original: feces vini - often refers to tartar or potassium bitartrate found in wine barrels and calcine them Calcinating involves heating a substance to high temperatures in the air to oxidize it or turn it into ash. well by themselves; [likewise] ashes of the vine, and calcine by themselves ashes of blood from a human vein. To do this: first dry the blood in the sun, and once dried, grind it into powder and put it in an earthen pot; close it and put it in the calcination furnace, burn it thoroughly, and calcine it into ashes. Then, from these ashes being very well ground, take an equal weight of each. Namely: take 3 pounds of the ashes of wine dregs, 8 pounds of the ashes of the vine, and 3 pounds of the "blood of glass" original: sanguine vitri - this likely refers to a specific red chemical state or may be a scribal error for sanguine vitis (juice of the vine). which has been well treated.

Of the ashes of human blood, take 3 pounds. Let these be well [prepared], and divide the mixed ashes into 3 parts. Then take one aforesaid part and put it in ten times as much of the prepared urine. Mix it well and boil it well, so that the whole power of the ashes is extracted. When these are boiled, pour the whole into some vessel, straining it through a thick cloth suited for this purpose. Pour the strained water again, while hot, over the same dregs; heat the same water and pour it over the same dregs, straining it to make a lye original: lixivium - an alkaline solution leached from ashes.

Then throw away those dregs and put the second part of the ashes into the same lye you made; mix it well, boil it, strain it, and do in all things as you did before for the second and third [parts]. Then throw away the dregs and take the third part of the ashes and put it in the same water with which you made the lye; do in all things just as you did with the first and second part. And then you will have a strong capitellum original: capitellum - a technical term for a highly concentrated or "strong" lye used as a solvent in alchemy..

Then take prepared common salt, and for 3 parts of that salt, add one part of strong vinegar and grind it well. Then dissolve that vinegared salt in ten times as much of the aforesaid hot, strong capitellum. Then let it be well mixed with a large spoon throughout this second step, so that the strong capitellum and the aforesaid vinegared salt are joined together. Allow it to infuse, and when it is finished, distill it through a filter prepared for this work. Then boil down the distillate in a cauldron until the water vanishes and it gives off no smoke; then...