1ſervable, that after the two or three firſt
exſuctions of the Air, the Flame (except
at the very top) appear'd exceeding blew,
and that the Flame ſtill receded more and
more from the Tallow, till at length it
appear'd to poſſeſs onely the very top of
the Week, and there it went out.
exſuctions of the Air, the Flame (except
at the very top) appear'd exceeding blew,
and that the Flame ſtill receded more and
more from the Tallow, till at length it
appear'd to poſſeſs onely the very top of
the Week, and there it went out.
The ſame Candle being lighted again
was ſhut into the Receiver, to try how it
would laſt there without drawing forth
the Air, and we found that it laſted much
longer then formerly; and before it went
out receded from the Tallow towards the
the top of the Week, but not near ſo
much as in the former Experiment.
was ſhut into the Receiver, to try how it
would laſt there without drawing forth
the Air, and we found that it laſted much
longer then formerly; and before it went
out receded from the Tallow towards the
the top of the Week, but not near ſo
much as in the former Experiment.
And having an intention to obſerve par
ticularly what the motion of the ſmoak
would be in theſe Experiments: We
took notice that when the Air was not
drawn out, there did upon the extinction
of the Flame a conſiderable part of the
Week remain kindled, which (probably
by reaſon of the Circulation of the Air
in the Veſſel, occaſion'd by the heat) e
mitted a Steam, which aſcended ſwiftly
and directly upwards in a ſlender and unin
terrupted Cylinder of ſmoke, till it came
to the top, whence it manifeſtly recoyl'd
by the ſides to the lower part of the Veſ-
ticularly what the motion of the ſmoak
would be in theſe Experiments: We
took notice that when the Air was not
drawn out, there did upon the extinction
of the Flame a conſiderable part of the
Week remain kindled, which (probably
by reaſon of the Circulation of the Air
in the Veſſel, occaſion'd by the heat) e
mitted a Steam, which aſcended ſwiftly
and directly upwards in a ſlender and unin
terrupted Cylinder of ſmoke, till it came
to the top, whence it manifeſtly recoyl'd
by the ſides to the lower part of the Veſ-