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="013/01/143.jpg" pagenum="113"/>
              is almoſt empty, ſome of the ſubtler
                <lb/>
              parts of the external Air may, by the
                <lb/>
              preſſure of the Atmoſphere, be ſtrain'd
                <lb/>
              through the very body of the
                <emph type="italics"/>
              Diachylon
                <emph.end type="italics"/>
                <lb/>
              into the Receiver. </s>
              <s>But this is onely con­
                <lb/>
              jecture: </s>
            </p>
            <p type="main">
              <s>Another Circumſtance of our Expe­
                <lb/>
              riment was this, That, if (when the
                <lb/>
              Quick-ſilver in the Tube was fallen low)
                <lb/>
              too much ingreſs were, at the hole of the
                <lb/>
              Stop-cock, ſuddenly permitted to the ex­
                <lb/>
              ternal Air; it would ruſh in with that vio­
                <lb/>
              lence, and bear ſo forcibly upon the ſur­
                <lb/>
              face of the ſubjacent Quick-ſilver, that
                <lb/>
              it would impel it up into the Tube rudely
                <lb/>
              enough to endanger the breaking of the
                <lb/>
              Glaſs. </s>
            </p>
            <p type="main">
              <s>We formerly mention'd, that the
                <lb/>
              Quick-ſilver did not in its deſcent fall as
                <lb/>
              much at a time after the two or three firſt
                <lb/>
              exſuctions of the Air, as at the beginning:
                <lb/>
              For, having mark'd its ſeveral Stages up­
                <lb/>
              on the Tube, we found, that at the firſt
                <lb/>
              ſuck it deſcended an Inch and 3/8, and at the
                <lb/>
              ſecond an Inch and 1/8; and when the Veſ­
                <lb/>
              ſel was almoſt empty'd, it would ſcarce at
                <lb/>
              one exſuction be drawn down above the
                <lb/>
              breadth of a Barly-corn. </s>
              <s>And indeed we
                <lb/>
              found it very difficult to meaſure in what </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum