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

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                <pb xlink:href="013/01/108.jpg" pagenum="68"/>
              odde an Experiment as we have been Re­
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              lating, we will adde that for farther ſatiſ­
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              faction we reiterated it in a round Glaſſe
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              containing by gueſſe about ſix ounces
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              of water: this violl we put into ſuch a
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              ſmall Receiver as was lately mention'd,
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              in ſuch manner as that the bottome of
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              it reſted upon the lower part of the Pneu­
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              maticall Glaſſe, and the Neck came out
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              through the Leaden-Cover of the ſame
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              at a hole made purpoſely for it. </s>
              <s>But be­
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              ing made circumſpect by the foregoing
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              miſchance, we had put the violl into a
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              Bladder, before we put it into the Re­
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              ceiver to hinder this laſt named Glaſſe
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              from being endanger'd by the breaking
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              of the other. </s>
              <s>Then the Pneumaticall
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              veſſell being clos'd ſo that no way was
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              left for the outward Air to get into it,
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              but by breaking through the Viol, into
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              whoſe cavity it had free acceſſe by the
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              mouth of it, (which was purpoſely left
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              open,) the Sucker being nimbly drawn
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              down, the external Air immediatly preſſ'd
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              forcibly as well upon the Leaden-Co­
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              ver as the Violl; and the Cover hap­
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              pening to be in one place a little narrow­
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              er then the edge of the Pneumatical Glaſs,
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              was depreſſ'd, and thruſt into it ſo vio-</s>
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