3. A workshop for preparing the patterns and materials of the moulds. It
should contain small edge millstones for grinding and mixing the loam,
and another mill for grinding coal and charcoal.
4. A vast area, called properly the foundry, in which the moulds are
made and filled with the melted metal. These moulds are in general very
heavy, consisting of two parts at least, which must be separated, turned
upside down several times, and replaced very exactly upon one another.
The casting is generally effected by means of large ladles or pots, in
which the melted iron is transported from the cupola, where it is fused.
Hence the foundry ought to be provided with cranes, having jibs movable
in every direction.
5. A stove in which such moulds may be readily introduced, as require to
be entirely deprived of humidity, and where a strong heat may be
uniformly maintained.
6. Both blast and air furnaces, capable of melting speedily the quantity
of cast-iron to be employed each day.