BOOK IX. 



389 



A, B— Two FURNACES. C—TaP- HOLES OF FURNACES. D— FOREHEARTHS. E— IhEIR 

 TAP-HOLES. F— DiPPING-POTS. G— At THE ONE FURNACE STANDS THE SMELTER CARRYING 

 A WICKER BASKET FULL OF CHARCOAL. AT THE OTHER FURNACE STANDS A SMELTER WHO 

 WITH THE THIRD HOOKED BAR BREAKS AWAY THE MATERIAL WHICH HAS FROZEN THE TAP- 

 HOLE OF THE FURNACE. H— HoOKED BAR. I— HeAP OF CHARCOAL. K— BaRROW ON 

 WHICH IS A BOX MADE OF WICKER WORK IN WHICH THE COALS ARE MEASURED. L— IRON 



SPADE. 



