Boyle, Robert
,
New experiments physico-mechanicall, touching the spring of the air and its effects
,
1660
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ternal Air, remaining in the Receiver,
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was grown inconſiderable, the aſcending
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parcels of Air having now little more
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then the weight of the incumbent Water
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to ſurmount, were able both ſo to expand
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themſelves as to fill up that part of the
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Pipe which they pervaded, & by preſſing
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every way againſt the ſides of it, to lift
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upwards with them what Water they
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found above them, without letting any
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conſiderable quantity glide down along
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the ſides of the Glaſs: So that ſometimes
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we could ſee a bubble thruſt on before it
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a whole Cylinder of Water of perhaps
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an Inch high, and carry it up to the top
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of the Pipe; though as we formerly no
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ted, upon the letting in the external Air,
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theſe tumid bubbles ſuddenly relapſ'd to
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their former inconſpicuouſneſs. </
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>All theſe things laid together ſeem'd
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ſufficiently to confirm that, which the
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conſideration of the thing it ſelf would
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eaſily enough perſwade, namely, That
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the Air, and ſuch like Bodies being under
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Water, may be preſſ'd upon as well by
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the Atmoſphere, as by the weight of the
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incumbent Water it ſelf. </
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<
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>Hence likewiſe we may verifie what we
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obſerv'd at the cloſe of the foregoing </
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