Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660
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              contain'd Liquors were put into the Re­
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              ceiver, and that beginning to be evacua­
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              ted, the bubbles in all the three Liquors
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              began to appear. </s>
              <s>The mixture of the
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              Spirit of Wine and Water diſcloſ'd a
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              great ſtore of bubbles, eſpecially towards
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              the top; but ſcarce afforded us any thing
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              worth remem bring. </s>
              <s>The Spirit of Urine
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              appear'd to ſwell near an Inch and an half
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              above the mark; and beſides that, ſent
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              forth ſtore of bubbles, which made a
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              kinde of froth at the upper part of it. </s>
              <s>And
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              above that ſpume there appear'd eight or
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              ten great bubbles one above another, in a
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              very decent order, each of them conſtitu­
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              ting, as it were, a Cylinder of about half
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              an Inch high, and as broad as the internal
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              cavity of the Neck: So that all the upper
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              part of the Neck (for theſe bubbles reach'd
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              to the top) ſeem'd to be divided into al­
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              moſt equal parts, by certain Diaphrag­
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              mes, conſiſting of the coats of the bub­
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              bles, whoſe edges appear'd like ſo many
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              Rings ſuſpended one above another. </s>
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              <s>In the Spirit of Wine there did ariſe a
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              great multitude of bubbles, even till
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              wearineſs did make us give over the Ex­
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              periment. </s>
              <s>And in theſe bubbles two or
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              three things were remarkable; as firſt, </s>
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