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

Table of figures

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              time then another, we are not yet pro­
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              vided of any better Anſwer, then this
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              general one, That the Air about us,
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              and much more that within the Receiver,
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              may be much alter'd by ſuch cauſes as few
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              are aware of: For, not to repeat thoſe
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              probable Arguments of this Aſſertion
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              which we have occaſionally mention'd
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              here and there in the former part of this
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              Epiſtle, we will here ſet down two or
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              three Inſtances to verifie the ſame Propo­
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              ſition. </s>
              <s>Firſt, I finde that the Learned
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              Foſephus Acoſta,
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              among other Judicious
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              Obſervations he made in
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              America,
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              hath
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              this concerning the Effects of ſome
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              Winds;
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              There are
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              (ſays he)
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              Winds which
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              naturally trouble the Water of the Sea, and
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              make it green, and black; others, clear as
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              Cryſtal.
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              <s> Next, we have obſerv'd, That
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              though we conveyd into the Receiver our
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              Scales, and the
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              Pendula
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              formerly men­
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              tion'd, clean and bright; yet after the Re­
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              ceiver had been empty'd, and the Air let in
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              again, the gloſs or luſtre both of the one,
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              and of the other, appear'd tarniſh'd by a
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              beginning ruſt. </s>
              <s>And in the laſt place, we
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              will ſubjoyn an Obſervation we made
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              ſome Years ago, which hath been heard
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              of by divers Ingenious Men, and ſeen </s>
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