Boyle, Robert
,
New experiments physico-mechanicall, touching the spring of the air and its effects
,
1660
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almoſt with Quick-ſilver, and faſtning a
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mark over againſt the middle of the pro
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tuberant Superficies as near as our Eyes
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could judge, we found that the Quick
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ſilver alone weighed 299 1/32 Grains: Then
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the Quick-ſilver being pour'd out, and
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the ſame Glaſs being fill'd as full of com
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mon Water, we found the Liquor to
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weigh 21 7/8 Grains. </
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>Whereby it appear'd
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that the weight of Water to Quick
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ſilver, is as one to (13 19/28): Though our Il
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luſtrious
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Verulam
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(queſtionleſs not for
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want of Judgement or Care, but of ex
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act Inſtruments) makes the proportion
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betwixt thoſe two Liquors to be greater
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then of 1 to 17. And to adde, that up
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on the by, ſince Quick-ſilver and well
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rectified Spirit of Wine, are (how juſtly
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I ſay not) accounted, the one the hea
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vieſt, and the other the lighteſt of Li
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quors; we thought to fill in the ſame
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Glaſs, and with the ſame Scales to ob
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ſerve the difference betwixt them, which
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we found to be as of 1 to (16 641/1084); where
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by it appear'd, That the difference be
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twixt Spirit of Wine, that may be made
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to burn all away, (ſuch as was ours) and
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common Water, is as betwixt 1 and (1 44/171) </
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