A spectacular thermal region is the casting department. From a coke-fired cupola comes the “devil's brew”—cauldrons of special alloys of molten metal which is poured into moulds of sand and covered up. A strange smell of cooking comes from the steaming and fuming. The starry sparks from the fiery liquid and the wisps of whiteness curling up from the dark sand give this place a diabolical appearance in the late afternoon. The moulds are made from wooden patterns. At rest together in a little office they suggest a toy-shop, which contrasts queerly with the fiery turbulence just outside.