Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660
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              ſo unprovided of Lungs, and by ſome o­
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              ther conſiderations. </s>
              <s>But though it need
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              not be deny'd, that the inſpir'd Air may
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              ſometimes be of uſe by refrigerating the
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              Heart; yet (againſt the Opinion that makes
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              this Refrigeration, the moſt genuine and
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              conſtant uſe of the Air) it may be Obje­
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              cted, That divers cold Creatures (ſome
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              of which, as particularly Frogs, live in
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              the Water) have yet need of Reſpiration,
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              which ſeems not likely to be needed for
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              Refrigeration by them that are deſtitute of
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              any ſenſible heat, and beſides, live in the
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              cold Water: That even decrepid old
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              Men, whoſe natural heat is made very
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              languid, and almoſt extinguiſh'd by rea­
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              ſon of age, have yet a neceſſity of fre­
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              quent Reſpiration: That a temperate Air
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              is fitteſt for the generality of breathing
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              Creatures; and as an Air too hot, ſo al­
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              ſo an Air too cold, may be inconvenient
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              for them (eſpecially, if they be troubled
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              with an immoderate degree of the ſame
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              Quality which is predominant in the Air:)
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              That in ſome Diſeaſes the natural heat is
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              ſo weaken'd, that in caſe the uſe of Reſpi­
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              ration were to cool, it would be more
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              hurtful then beneficial to breath; and the
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              ſuſpending of the Reſpiration, may ſup-</s>
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