The Essence of Mercury

Having taken the stupefied mercury from the apparatus with effort and extracted it,
One should add non-stupefied mercury in sixteenth parts to the stupefied mercury. (22)
With rock salt and borax, one should grind it combined with honey;
Then, it should be sweated in a "swinging apparatus" dola-yantra with alkalis, acids, and salts. (23)
Having extracted it, one should stupefy the Lord of Mercury afterwards, again and again;
One should repeat the extraction process twenty-one times. (24)
Alternatively, in a "wheel apparatus" chakra-yantra, the mercury is made stupefied.

Now, therefore, I will explain the distillation according to the rules. (25)
Take two parts of pure mercury combined with one part of copper;
Adding one-thirtieth part of salt, one should make a beautiful paste. (26)
One should take a flat metal pan kattah and apply the mercury to its base;
One should bind it from below the base with a double-layered fine cloth. (27)
Having applied the mercury between the cloths over a water-vessel,
One should seal the joint of the vessel and the pan firmly with clay. (28)
Over the pan, one should perform the distillation of the King of Mercury;
One should make a paste of copper, with fire above and water below.
In the water, the mercury goes, while the copper remains at the base.
By distillation, copper is separated from that mercury. (29)
Again, a paste should be made, adding acid and copper;
After washing it with effort, one should place it in the middle of a vessel. (30)
Placing another vessel face-down, one should seal its mouth;
On the base of the upper vessel, one should apply cow dung. (31)
Placing it on a furnace with effort, one should then light a lamp-fire;
The mercury, having flown up, attaches itself to the base of the upper vessel. (32)