Boyle, Robert
,
New experiments physico-mechanicall, touching the spring of the air and its effects
,
1660
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cloſe themſelves, and to increaſe as the
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preſſure of the Air in the Receiver de
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creaſ'd. </
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>But whereas in the firſt men
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tion'd Philoſophical Egge the bubbles
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were very ſmall, and never able to ſwell
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the Water, that we took notice of, at all
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above the mark: In the other, whoſe
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Neck, as we lately ſaid, was ſtraightned,
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and their paſſage obſtructed, great num
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bers of them, and bigger, faſtned them
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ſelves to the lower end of the Glaſs ram
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mer (if we may ſo call it) and gather'd in
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ſuch numbers between that and the ſides
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of the Neck, that the Water ſwell'd a
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bout a Fingers breadth above the mark,
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though upon the admitting of the exter
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nal Air it relapſ'd to the former mark, or
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rather fell ſomewhat below it. </
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>And al
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though thereupon in the firſt nam'd Veſ
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ſel all the bubbles preſently diſ-appear'd,
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yet in the other we obſerv'd, that divers
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remained faſtned to the lower part of the
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Glaſs rammer, and continued there ſome
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what to our wonder, for above an hour
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after, but contracted in their Dimen
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ſions. </
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>Moreover, having ſuffered the Glaſſes
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to remain above twenty four hours in the </
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