_, wherein is no
mixture of any other Metal; laminate it thin, have in readiness a great
Stone Jugg, half full of Vinegar, stop the Jugg very close, set it in a
Lukewarm Bath, every three or four days scrape off the calcin'd _Saturn_
from the Plates, and reserve it apart, thus do so long till you have 5
or 6 _l._ of the calcin'd _Saturn_, then grind it very well on a Stone
with good distilled Wine-Vinegar, so as you may paint therewith, then
take two or three great Stone-pots, therein put the _Calx_ of _Saturn_
which you ground, poure good distilled Wine-Vinegar upon it, that two
parts of the Pot be full, stir it well together, stop the Pot close with
a polished Glass or Pebble-stone, set the Pots in a Bath, stir it four
or five times in a day with a wooden Ladle, lay the Glass or Stone
Stopple again over it, make the Bath no hotter than that you may well
endure your hand therein, that is, lukewarm; so let it stand fourteen
days and nights, then decant that which is clear into another Stone-pot,
poure other distilled Vinegar upon the _Calx_ which is not well
dissolved, mix them well together, set it 14 days in the Bath, again
decant it, and poure other Vinegar upon it as before. This decantation
and pouring on continue so long till all the _Calx_ of _Saturn_ be
dissolved, then take all the dissolved _Saturn_, set it in a Bath,
evaporate the Vinegar by a small fire, the _Saturn_ will become a powder
or lump. Or stir it about until it be dry, you have a mass or powder of
a dark yellow, or honey colour, then grind the powder again very finely
upon a Stone with distilled Vinegar; put it into a stone-pot, stir and
mix it well together, set it again into a Bath, which is but lukewarm
so let it stand five or six dayes, stir it every day from the top to the
bottom with a wooden Ladle, cover it again with the glass-Stopple, then
let it cool, poure off that which is dissolved into a great stone pot,
poure other Vinegar upon it, mix and stir them well together, set it
into the Bath as before, reiterate this decantation and pouring on so
often, till no more will dissolve, which try with your tongue, if it be
sweet, it is not enough dissolved, or put some of it into a glass-gourd,
let it evaporate, if any thing remain, it is not yet all dissolved which
would be Gold, and then what remaines in the pot are _Faeces_, and sweet
upon the Tongue; if you find any thing in the Gourd, it is not yet all
dissolved, then may you poure fresh Vineg