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

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              <s>
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              between the events may aſſure us that we
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              were not much miſtaken. </s>
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              <s>We took then a Glaſs Pipe, of the
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              form of an inverted
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              Siphon,
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              whoſe ſhape
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              is delineated in the ſixteenth Figure: And
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              pouring into it a quantity of Quick ſilver,
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              we held it ſo, that the ſuperficies of the
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              Liquor, both in the longer and ſhorter
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              leg, lay in a Horizontal Line, denoted in
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              the Scheme by the prick'd Line EF; then
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              pouring Water into the longer Leg of the
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                <emph type="italics"/>
              Siphon,
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              till that was almoſt fill'd, we ob­
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              ſerv'd the ſurface of the Quick-ſilver in
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              that leg to be, by the weight of the Wa­
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              ter, depreſſ'd, as from E to B; and in
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              the ſhorter leg, to be as much impell'd
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              upward as from F to G: Whereupon ha­
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              ving formerly ſtuck marks, as well at the
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              point B, as at the oppoſite point D, we
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              mealur d both the diſtance DC to have
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              the height of the Cylinder of Quick-ſil­
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              ver, which was raiſ'd above the Point D
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              (level with the ſurface of the Quick-ſilver
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              in the other leg) by the weight of the Wa­
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              ter, and the diſtance BA which gave us
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              the height of the Cylinder of Water. </s>
              <s>So
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              that the diſtance DC amounting to (2 12/54)
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              Inches, and the height of the Water a­
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              mounting (30 45/50) Inches; and the whole </s>
            </p>
          </chap>
        </body>
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