A—IRON PLATES FULL OF HOLES. B—WALLS. C—PLATE ON WHICH ORE
IS PLACED.
D—BURNING CHARCOAL PLACED ON THE ORE. E—POTS. F—FURNACE. G—MIDDLE
PART OF UPPER CHAMBER. H—THE OTHER TWO COMPARTMENTS. I—DIVISIONS OF THE
LOWER CHAMBER. K—MIDDLE WALL. L—POTS WHICH ARE FILLED WITH ORE. M—LIDS
OF SAME POTS. N—GRATING.
D—BURNING CHARCOAL PLACED ON THE ORE. E—POTS. F—FURNACE. G—MIDDLE
PART OF UPPER CHAMBER. H—THE OTHER TWO COMPARTMENTS. I—DIVISIONS OF THE
LOWER CHAMBER. K—MIDDLE WALL. L—POTS WHICH ARE FILLED WITH ORE. M—LIDS
OF SAME POTS. N—GRATING.