Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 471
lid form, and is there intensely heated. The presenceof solid carbon in an ordinary gas flame is easily proved by holding in it acold fragment of porcelain, or a piece of metal, which will become coveredwith soot. In the flame of the Bunsen burner there is no soot, because theincreased supply of… … Fig. 218, -Btitisen^s Bjirner on astand. 422 THE SPECTROSCOPE. have the vessels he heats free from soot, in order that he may observe whatis taking place within them. The flame of Bunsens lamp becomes that ofan ordinary sooty gas flame, when the two orifices which admit the air atthe bottom of the…
Inventions
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