1bituminous, then the
bitumen burns and can be smelled.
These furnaces have
a structure like the structure of the furnaces in which ore is smelted, except
that they are open in front; they are six feet high and four feet wide. As
for this kind of furnace, three of them are required for one of those in which
the cakes are melted. First of all they are roasted in the first furnace, then
when they are cooled, they are transferred into the second furnace and again
roasted; later they are carried to the third, and afterward back to the first,
and this order is preserved until they have been roasted seven or nine times.
a structure like the structure of the furnaces in which ore is smelted, except
that they are open in front; they are six feet high and four feet wide. As
for this kind of furnace, three of them are required for one of those in which
the cakes are melted. First of all they are roasted in the first furnace, then
when they are cooled, they are transferred into the second furnace and again
roasted; later they are carried to the third, and afterward back to the first,
and this order is preserved until they have been roasted seven or nine times.
A—CAKES. B—BUNDLES OF FAGGOTS. C—FURNACES.
END OF BOOK VIII.