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

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              <s>
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              Air; you hold a Coal or Brand in that
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              ſtream of Vapors that iſſues out of the
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              narrow mouth of it, you will finde this
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              vapid or rorid Air, (if I may ſo call it)
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              to blow the Fire very ſtrongly and with a
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              roaring noiſe. </s>
              <s>And that it be not ſaid
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              that 'tis by the external Air which the a­
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              queous ſteams drive before them, and
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              not by the Steams themſelves, that the
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              Blaſt is made and the Flame excited; it
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              has been obſerv'd, that by approaching
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              the Coal or Brand almoſt to the mouth
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              of the
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              Æolipile,
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              the winde appear'd more
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              vehement then if the Body to be kindled
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              were held ſome Inches off. </s>
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              <s>But in regard the elaſtical power of the
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              Stream, iſſuing out of an
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              Æolipile,
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              ſeems
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              manifeſtly due to the heat that expands
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              and agitates the aqueous Particles where­
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              of that Stream conſiſts, and that ſuch
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              rapid winds ſeem to be but water ſcatter'd
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              into little parts and ſet a moving; ſince
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              we finde, that holding a Knife, or any
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              ſolid, ſmooth and cloſe Body againſt the
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              ſtream that iſſues out of the Æolipile, the
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              vapors condenſing upon it, will preſently
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              cover it with water: It will be very per­
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              tinent to ſubjoyn a notable Experiment
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              that I remember I have met with in the </s>
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