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

Page concordance

< >
Scan Original
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
< >
page |< < of 862 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="013/01/117.jpg" pagenum="77"/>
              of the Cylinder, the hole of the Stop­
                <lb/>
              cock and that in the Cover of the Re­
                <lb/>
              ceiver, that ſome Air might get in to
                <lb/>
              cheriſh the Flame and the ſmoke might
                <lb/>
              have a vent; Yet for ſo great a Flame
                <lb/>
              the Air ſufficed not ſo much as till the
                <lb/>
              Cover could be perfectly luted on: So
                <lb/>
              that before we were quite ready to imploy
                <lb/>
              the Pump, the Candle was extinguiſhed.
                <lb/>
              </s>
              <s>Wherefore we took but one of the a­
                <lb/>
              bove mention'd Tapers, and having
                <lb/>
              lighted it, cloſ'd it up in the Receiver, to
                <lb/>
              try how long a ſmall Flame with a pro­
                <lb/>
              portionable ſmoke would continue in
                <lb/>
              ſuch a quantity of Air: But we found
                <lb/>
              upon two ſeveral tryals, that from the
                <lb/>
              beginning of pumping, the Flame went
                <lb/>
              out in about a minute of an hour. </s>
              <s>It
                <lb/>
              appear'd indeed to us that the ſwinging
                <lb/>
              of the Wier to and fro (in the Engine
                <lb/>
              ſhaken by pumping) haſten'd the vaniſh­
                <lb/>
              ing of the Flame, which ſeem'd by that
                <lb/>
              motion to be caſt ſometimes on one ſide
                <lb/>
              of the Week and ſometimes on the o­
                <lb/>
              ther; But though once we purpoſely
                <lb/>
              refrain'd pumping after a very few ex­
                <lb/>
              ſuctions of the Air, that the Flame might
                <lb/>
              not be agitated, yet it laſted not much
                <lb/>
              longer then the newly mention'd time. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>