d across it." Each of these divisions burned one-third of an hour, so that the six candles lasted one day. The discovery of gas lighting and improvements in lamps have done much to curtail the manufacture of candles, but it is yet a vast industry. An estimate of the consumption in the United States… … the mechanical means of candle-making. his hours to study and devotion and sleep. CUTTING AND CARRYING OFF. ) 1881 SCIENTIFIC AMERICIAN, INC
