BOOK IX. 



393 



A_FURNACE OF THE CARNI. B— LoW WALL. C— WOOD. D— OrE DRIPPING LEAD. 



E— Large crucible. F— Moulds. G— Ladle. H— Slabs of lead. I— Rectangular 



HOLE at the E.ACK OF THE FURNACE. K— SaXON FURNACE. L— OPENING IN THE BACK 

 OF THE FURNACE. M— WoOD. N— UPPER CRUCIBLE. O— DiPPING-POT. P— WeSTPHALIAN 

 METHOD OF MELTING. Q— HeAPS OF CHARCOAL. R— StRAW. S— WiDE SLABS. 



f — Crucibles. V— Polish hearth. 



