BOOK VIII. 



277 



A-lRON 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-MlDDLE 

 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. 



