Wilkins, John, A discovery of a new world : or a discourse tending to prove, that 'tis probable there may be another Habitable World in the Moon ; with a discourse concerning the Probability of a Passage thither; unto which is added, a discourse concerning a New Planet, tending to prove, that 'tis probable our earth is one of the Planets

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That the Earth may be a Planet.
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          <pb o="106" file="0286" n="286" rhead="That the Earth may be a Planet."/>
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        <div type="section" level="1" n="62">
          <head xml:space="preserve">PROP. VIII.</head>
          <head style="it" xml:space="preserve">That there is not any ſufficient reaſon to
            <lb/>
          prove the Earth incapable of thoſe mo-
            <lb/>
          tions which Copernicus aſcribes un-
            <lb/>
          to it.</head>
          <p>
            <s xml:space="preserve">THe two chief Motions in the World,
              <lb/>
            which are more eſpecially remarkable
              <lb/>
            above the reſt, are the Diurnal, and An-
              <lb/>
            nual.</s>
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          </p>
          <p>
            <s xml:space="preserve">The Diurnal, which makes the difference
              <lb/>
            betwixt Night and Day, is cauſed by the
              <lb/>
            Revolution of our Earth upon its own Axis,
              <lb/>
            in the ſpace of four and twenty hours.</s>
            <s xml:space="preserve"/>
          </p>
          <p>
            <s xml:space="preserve">The Annual, which makes the difference
              <lb/>
            betwixt Winter and Summer, is likewiſe
              <lb/>
            cauſed by the Earth, when being carried
              <lb/>
            through the Ecliptick in its own Orb, it ſi-
              <lb/>
            niſhes its courſe in a Year.</s>
            <s xml:space="preserve"/>
          </p>
          <p>
            <s xml:space="preserve">The firſt is uſually ſtiled, Motus Revolu-
              <lb/>
            tionis : </s>
            <s xml:space="preserve">The ſecond, Motus Circumlationis :
              <lb/>
            </s>
            <s xml:space="preserve">There is likewiſe a third, which Copernicus
              <lb/>
            calls, Motus Inclinationis: </s>
            <s xml:space="preserve">But this being
              <lb/>
            throughly conſidered, cannot properly be
              <lb/>
            ſtiled a Motion, but rather an Immutability,
              <lb/>
            it being that whereby the Axis of the Earth
              <lb/>
            does always keep parallel to it ſelf; </s>
            <s xml:space="preserve">from
              <lb/>
            which ſcituation, it is not its Annual Courſe
              <lb/>
            that does make it in the leaſt manner to de-
              <lb/>
            cline.</s>
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