BOOK VIII. 



277 



A— Iron plates full of holes. H — 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 — MiDDLF. WALL. L — PoTS WHICH ARE FILLED WITH ORE. M — LiDS 



OF SAME POTS. N — GrATING. 



