This new burner is applicable to gas lamps
as well as to oil and petroleum ones.
The effects obtained by the new chimney may be summed up as follows:
increase in illuminating power, as a natural result of a better
combustion; suppression of smoke; and a more active combustion, which
dries the carbon of the wick and thus facilitates the ascent of the oil.
The velocity of the current of air likewise facilitates the action of
capillarity by carrying the oil to the top of the wick. Moreover, the
great influx of air under the flame continually cools the base of the
chimney as well as the wick tube, and the result is that the excess of oil
falls limpid and unaltered into the reservoir, and produces none of those
gummy deposits that soil the external movements and clog up the conduits
through which the oil ascends. Finally, the influx of air produced by this
chimney permits of burning, without smoke and without charring the wick,
those oils of poor quality that are unfortunately too often met with in
commerce.--_La Nature._
* * * * *
MODERN LOCOMOTIVE PRACTICE.
[Footnote: Paper read before the Civil and Mechanical Engineers' Society,
April 2, 1884.
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