Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660

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              moſt boundleſs power; we afterwards pur­
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              poſely try'd this Experiment with ſeveral
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              Glaſſes ſomewhat thicker then thoſe Vi­
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              ols, and found the event to verifie our con­
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              jecture, that it would not ſucceed: for
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              the Glaſſes were taken out as intire as they
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              were put in. </s>
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              <s>And here, My Lord, I hold it not un­
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              fit, upon occaſion of the mention that
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              has been made of our having employ'd
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              ſmall Receivers, and one of them, not­
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              withſtanding its being crack'd, to annex
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              theſe two Advertiſements. </s>
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              <s>Firſt then, beſides the great Pneuma­
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              tical Glaſs ſo often mention'd, and the
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              proportionate Stop-cock, we thought fit
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              to provide our ſelves of ſome ſmall Recei­
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              vers blown of Cryſtalline Glaſs, of ſeve­
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              rall Shapes, and furniſhed with ſmaller
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              Stop-cocks purpoſely made; and this we
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              did upon hopes that when we had ſur­
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              mounted the difficulties to be met with in
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              Cementing the Glaſſes to the Stop­
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              cocks, and the Pneumatical Veſſels to the
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              Pump ſo exquiſitely as is requiſite for our
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              purpoſe, we ſhould from the ſmalneſs of
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              our Receivers receive a four-fold Advan­
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              tage. </s>
              <s>The firſt, that by reaſon of the
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              ſlenderneſs of the Veſſels, and their be-</s>
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