Boyle, Robert
,
New experiments physico-mechanicall, touching the spring of the air and its effects
,
1660
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ved that a great part of the Air being
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drawn out, the bubbles began to diſcover
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themſelves at the bottom and ſides of the
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Glaſs; and increaſing, as the Air was
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more and more drawn away, they did
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from time to time aſcend copiouſly e
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nough to the top of the Water, and there
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quickly break: but by reaſon that the
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wideneſs of the Glaſs allow'd them free
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paſſage through the Water, they did not
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appear as in the former Experiments to
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make it ſwell: The Water ſcarce ever ri
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ſing at all above the mark affixt to its up
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per ſurface when it was put in, and upon
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the return permitted to the outward Air,
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and conſequently the ſhrinking in of the
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remaining bubbles, the Water ſeem'd to
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have loſt of its firſt extent, by the avo
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lation of the formerly interſperſ'd Air. </
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>Being willing likewiſe to try whether
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diſtilled Water were by having been di
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vided into minute parts, and then re-uni
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ted, more or leſs diſpoſ'd to expand it
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ſelf then Water not diſtill'd: We took
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out of our Laboratory ſome careful
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ly diſtill'd Rain-water, and put about
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two Ounces of it into a round Glaſs </
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