|
fol. 10r
|
   |
|
 |
around the glass in the thickness of half
a finger up to the neck and let it dry well. Then take the four ounces
and put them into the glass; and this should be so large, that the mixture,
the four ounces do not reach up to the middle of the glass; and put a
little piece of wood into the top of the glass and take then a pot, which
should be so large, that the glass fits into it completely; or you may
take a large pot, and it too you should cover well with the above-mentioned
glue and let it dry. Then take fine sand or sifted ashes and put the glass
with the mixture into the pot or the large pot and into the sand or the
ashes around it up to the neck; and place this on a tripod or on a stone
and make under and around it a fire of coal, gently at first, until the
mixture melts; and leave the glass open at the top until no more smoke
comes out of it, and let it burn on a steady fire XII hours, and let it
then cool off by itself and break open the glass, and if God is willing
you will have good aurum musicum. The aurum musicum you grind and temper
it as is written above. §
|
|
 |
Source: Hellmut Lehmann-Haupt, The Göttingen Model Book. Columbia 2nd ed. 1978 |