1If a centumpondíum of copper contains two
líbrae and a
bes of silver, and
the lead a third of a libra and a semí-uncía, there will be in each liquation
cake one and a half líbrae and a semí-uncia, and a little more than a sicilicus
of silver. In the exhausted liquation cakes there remain a third of a libra
and a semi-uncia of silver.
the lead a third of a libra and a semí-uncía, there will be in each liquation
cake one and a half líbrae and a semí-uncia, and a little more than a sicilicus
of silver. In the exhausted liquation cakes there remain a third of a libra
and a semi-uncia of silver.
If there be in the copper only a minute proportion of silver, it cannot be
separated easily until it has been re-melted in other furnaces, so that in
the “bottoms” there remains more silver and in the “tops” less.15 This
separated easily until it has been re-melted in other furnaces, so that in
the “bottoms” there remains more silver and in the “tops” less.15 This
A—FURNACE. B—FOREHEARTH. C—DIPPING-POT.
D—CAKES.
furnace, vaulted with unbaked bricks, is similar to an oven, and also to the
cupellation furnace, in which the lead is separated from silver, which I described
in the last book. The crucible is made of ashes, in the same manner as
furnace, vaulted with unbaked bricks, is similar to an oven, and also to the
cupellation furnace, in which the lead is separated from silver, which I described
in the last book. The crucible is made of ashes, in the same manner as