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Book IX: Smelting Ore

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BOOK IX.                                                419
exceeds the price of the latter by a gold coin54. These lattice-like bars are
lighter than the others, and when five of them are pounded and amalgamated
with a wooden mallet, a mass is made which is stamped with an iron die.
There are some who do not make a dipping-pot on the floor for the tin to run
into, but in the hearth itself ; out of this the master, having removed the
charcoal, ladles the tin and pours it over the copper-plate. The dross which
adheres to the wood and the charcoal, having been collected, is re-smelted
in the furnace.
Some of the Lusitanians melt tin from tin-stone in small furnaces. They
use round bellows made of leather, of which the fore end is a round iron disc
and the rear end a disc of wood ; in a hole in the former is fixed the nozzle,
in the middle of the latter the blow-hole. Above this is the handle or haft,
which draws open the round bellows and lets in the air, or compresses it and
drives the air out. Between the discs are several iron hoops to which the
leather is fastened, making such folds as are to be seen in paper lanterns that
6iAureo nummo. German Translation gives reinschen gulden, which was the equivalent
of about $1.66, or 6.9 shillings. The purchasing power of money was, however, several times
as great as at present.
Book IX: Smelting Ore Page of 673 Book IX: Smelting Ore
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