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

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              nent to annex to the other Circumſtances
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              that have been already ſee down concern­
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              ing this Experiment, That it was made in
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              Winter, in Weather neither Froſty nor
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              Rainy, about the change of the Moon,
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              and at a place whoſe latitude is near about
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              51
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              d
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              and a half: For perhaps the force or
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              preſſure of the Air may vary, according
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              to the Seaſons of the Year, the tempera­
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              ture of the Weather, the elevation of the
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              Pole, or the phaſes of the Moon; all, or
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              even any of them ſeeming capable to al­
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              ter either the heighth or conſiſtence of the
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              incumbent Atmoſphere: And therefore
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              it would not be amiſs if this Experiment
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              were carefully tryd at ſeveral times and
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              places, with variety of Circumſtances. </s>
              <s>It
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              might alſo be try'd with Cylinders of ſe­
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              veral Diameters, exquiſitely fitted with
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              Suckers, that we might know what pro­
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              portion ſeveral Pillars of the Atmoſphere
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              bear, to the Weights they are able to ſu­
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              ſtain or lift up; and conſequently, whe­
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              ther the increaſe or decrement of the re­
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              ſiſtance of the ambient Air, can be re­
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              duc'd to any regular proportion to the
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              Diameters of the Suckers: Theſe, and
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              divers other ſuch things which may be
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              try'd with this Cylinder, might moſt of </s>
            </p>
          </chap>
        </body>
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