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

Table of contents

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[51. PROP. IV.]
[52. PROP. V.]
[53. PROP. VI.]
[54. PROP. VII. PROP. VIII. PROP. IX. PROP. X.]
[55. That the EARTH May be a PLANET. PROP. I.]
[56. PROP. II.]
[57. PROP. III.]
[58. PROP. IV.]
[59. PROP. V. That the Scripture, in its proper conſtru-ction, does not any where affirm the Immobility of the Earth.]
[60. PROP. VI. That there is not any Argument from the Words of Scripture, Principles of Na-ture, or Obſervations in Aſtronomy, which can ſuſſiciently evidence the Earth to be in the Gentre of the Uni-verſe.]
[61. PROP. VII. Tis probable that the Sun is in the Gentre of the World.]
[62. PROP. VIII. That there is not any ſufficient reaſon to prove the Earth incapable of thoſe mo-tions which Copernicus aſcribes un-to it.]
[63. Provebimur portu, terræque, verbeſq; recedunt.]
[64. PROP. IX. That it is more probable the Earth does move, than the Sun or Heavens.]
[65. PROP. X. That this Hypotheſis is exactly agreeable to common appearances.]
[66. Quicunq; ſolam mente præcipiti petit]
[67. Brevem replere non valentis ambitum, # Pudebit aucti nominis.]
[68. FINIS.]
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That the Moon may be a World.
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            direct Rays may eaſily penetrate.</s>
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          </p>
          <p>
            <s xml:space="preserve">But ſome may object, that this will not
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            conſiſt with that which was before deliver'd,
              <lb/>
            where I ſaid, that the thinneſt parts had leaſt
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            Light.</s>
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          </p>
          <p>
            <s xml:space="preserve">If this were true, how comes it to paſs then
              <lb/>
            that this Air ſhould be as light as any of the
              <lb/>
            other parts, when as ’tis the thinneſt of all?</s>
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          </p>
          <p>
            <s xml:space="preserve">I anſwer, if the Light be receiv'd by Re-
              <lb/>
            flexion only, then the thickeſt Body hath moſt,
              <lb/>
            becauſe it is beſt able to beat back the Rays;
              <lb/>
            </s>
            <s xml:space="preserve">but if the Light be receiv'd by Illumination
              <lb/>
            (eſpecially if there be an Opacous Body be-
              <lb/>
            hind, which may double the Beams by Reſlecti-
              <lb/>
            on) as it is here, then I deny not but a thin
              <lb/>
            Body may retain much Light, and perhaps,
              <lb/>
            ſome of thoſe Appearances which we take
              <lb/>
            for Fiery Comets, are nothing elſe but a bright
              <lb/>
            Cloud enlightned; </s>
            <s xml:space="preserve">ſo that probable it is, there
              <lb/>
            may be ſuch Air about the Moon; </s>
            <s xml:space="preserve">and hence
              <lb/>
            it comes to paſs, that the greater Spots are
              <lb/>
            only viſible towards her middle parts, and
              <lb/>
            none near the Circumference; </s>
            <s xml:space="preserve">not, but that
              <lb/>
            there are ſome, as well in thoſe parts, as elſe-
              <lb/>
            where, but they are not there perceivable, by
              <lb/>
            reaſon of thoſe brighter Vapours which hide
              <lb/>
            them.</s>
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        <div type="section" level="1" n="39">
          <head xml:space="preserve">PROP. XI.</head>
          <head style="it" xml:space="preserve">That as their World is our Moon, ſo our World is
            <lb/>
          their Moon.</head>
          <p>
            <s xml:space="preserve">I Have already handled the firſt thing that I
              <lb/>
            Promiſed, according to the Method which</s>
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