Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667

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              <s>
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              none of thoſe who aſcribe that principle to the ambient air. </s>
              <s>As
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              to the Miracle, or an Angel, I ſhould rather incline to this ſide; for
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              that which taketh beginning from a Divine Miracle, or from an
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              Angelical operation; as for inſtance, the tranſportation of a
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              non ball or bullet into the concave of the Moon, doth in all
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              bability depend on the vertue of the ſame principle for
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              ing the reſt. </s>
              <s>But, as to the Air, it ſerveth my turn, that it doth
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              not hinder the circular motion of the moveables, which we did
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              ſuppoſe to move thorow it. </s>
              <s>And to prove that, it ſufficeth (nor is
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              more required) that it moveth with the ſame motion, and
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              eth its circulations with the ſame velocity, that the Terreſtrial
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              Globe doth.</s>
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            <p type="main">
              <s>SIMP. </s>
              <s>And he likewiſe makes his oppoſition to this alſo;
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              demanding who carrieth the air about, Nature, or Violence?
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              </s>
              <s>And proveth, that it cannot be Nature, alledging that that is
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              trary to truth, experience, and to
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              Copernicus
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              himſelf.</s>
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            <p type="main">
              <s>SALV. </s>
              <s>It is not contrary to
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              Copernicus
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              in the leaſt, who writeth
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              no ſuch thing; and this Author aſcribes theſe things to him with
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              two exceſſive courteſie. </s>
              <s>It's true, he ſaith, and for my part I
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              think he ſaith well, that the part of the air neer to the Earth,
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              ing rather a terreſtrial evaporation, may have the ſame nature,
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              and naturally follow its motion; or, as being contiguous to it,
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              may follow it in the ſame manner, as the Peripateticks ſay, that
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              the ſuperiour part of it, and the Element of fire, follow the
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              tion of the Lunar Concave, ſo that it lyeth upon them to declare,
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              whether that motion be natural, or violent.</s>
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            <p type="main">
              <s>SIMP. </s>
              <s>The Author will reply, that if
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              Copernicus
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              maketh only
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              the inferiour part of the Air to move, and ſuppoſeth the upper
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              part thereof to want the ſaid motion, he cannot give a reaſon, how
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              that quiet air can be able to carry thoſe grave bodies along with
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              it, and make them keep pace with the motion of the Earth.</s>
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            <p type="main">
              <s>SALV.
                <emph type="italics"/>
              Copernicus
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              will ſay, that this natural propenſion of the
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                <arrow.to.target n="marg419"/>
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              elementary bodies to ſollow the motion of the Earth, hath a
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              mited Sphere, out of which ſuch a natural inclination would ceaſe;
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              beſides that, as I have ſaid, the Air is not that which carrieth the
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              moveables along with it; which being ſeparated from the Earth,
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              do follow its motion; ſo that all the objections come to nothing,
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              which this Author produceth to prove, that the Air cannot cauſe
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              ſuch effects.</s>
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            <p type="margin">
              <s>
                <margin.target id="marg419"/>
                <emph type="italics"/>
              The propenſion
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              of elementary
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              dies to follow the
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              Earth, hath a
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              mited Sphere of
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              activity.
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              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>To ſhew therefore, that that cannot be, it will be
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              ſary to ſay, that ſuch like effects depend on an interne principle,
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              againſt which poſition,
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              oboriuntur difficillimæ, immò inextricabiles
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              quæſtiones ſecundæ,
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              of which ſort are theſe that follow.
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              pium illud internum vel eſt accidens, vel ſubſtantia. </s>
              <s>Si primum;
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              quale nam illud? </s>
              <s>nam qualitas locomotiva circum, hactenus nulla
                <emph.end type="italics"/>
              </s>
            </p>
          </chap>
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