FURNACE n.
l; severe experience or discipline. Deut. iv. 20. Bustamente furnace, a shaft furnace for roasting quicksilver ores. -- Furnace bridge, Same as Bridge wall. See Bridge, n., 5. -- Furnace cadmiam or cadmia, the oxide of zinc which accumulates in the chimneys of furnaces smelting zinciferous ores. Raymond. -- Furnace…
GERMAN a.
-- German process (Metal.), the process of reducing copper ore in a blast furnace, after roasting, if necessary. Raymond. -- German sarsaparilla, a substitute for sarsaparilla extract. -- German sausage, a polony, or gut stuffed with meat partly cooked. -- German silver (Chem.), a silver-white alloy, hard and tough…
MATTE n.
A partly reduced copper sulphide, obtained by alternately roasting and melting copper ore in separating the metal from associated iron ores, and called coarse metal, fine metal, etc., according to the grade of fineness. On the exterior it is dark brown or black, but on a fresh surface is yellow or bronzy in color.…