Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660

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              of the Cylinder, the hole of the Stop­
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              cock and that in the Cover of the Re­
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              ceiver, that ſome Air might get in to
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              cheriſh the Flame and the ſmoke might
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              have a vent; Yet for ſo great a Flame
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              the Air ſufficed not ſo much as till the
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              Cover could be perfectly luted on: So
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              that before we were quite ready to imploy
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              the Pump, the Candle was extinguiſhed.
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              <s>Wherefore we took but one of the a­
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              bove mention'd Tapers, and having
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              lighted it, cloſ'd it up in the Receiver, to
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              try how long a ſmall Flame with a pro­
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              portionable ſmoke would continue in
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              ſuch a quantity of Air: But we found
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              upon two ſeveral tryals, that from the
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              beginning of pumping, the Flame went
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              out in about a minute of an hour. </s>
              <s>It
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              appear'd indeed to us that the ſwinging
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              of the Wier to and fro (in the Engine
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              ſhaken by pumping) haſten'd the vaniſh­
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              ing of the Flame, which ſeem'd by that
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              motion to be caſt ſometimes on one ſide
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              of the Week and ſometimes on the o­
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              ther; But though once we purpoſely
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              refrain'd pumping after a very few ex­
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              ſuctions of the Air, that the Flame might
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              not be agitated, yet it laſted not much
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              longer then the newly mention'd time. </s>
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