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 Eartb may be a Planet.
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              <pb o="101" file="0281" n="281" rhead="That the Eartb may be a Planet."/>
            Heat. </s>
            <s xml:space="preserve">The force of which, may more pro-
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            perly be applied to prove him in the
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            Centre.</s>
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          </p>
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            <note symbol="*" position="left" xlink:label="note-0280-01" xlink:href="note-0280-01a" xml:space="preserve">In prim.
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            cap.Sphær.</note>
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            <s xml:space="preserve">3. </s>
            <s xml:space="preserve">’Tis probable that the Planetary Orbs
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            (which are ſpecial parts of the Univerſe)
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            do move about the Centre of the World,
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            rather than about any other Centre which is
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            remote from it. </s>
            <s xml:space="preserve">But now ’tis evident, that
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            the Planets Saturn, Jupiter, Mars, Venus,
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            Mercury, do, by their Motion, encompaſs
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            the Body of the Sun. </s>
            <s xml:space="preserve">’Tis likely therefore
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            that this is ſcituated in the midſt of the
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            World.</s>
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          <p>
            <s xml:space="preserve">And as for the three upper Planets, ’tis
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            found, by Obſervation, that they are always
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            neareſt to the Earth, when in oppoſition to
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            the Sun, and fartheſt from us, when in con-
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            junction with it: </s>
            <s xml:space="preserve">Which difference is ſo
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            eminent, that Mars in his Perige does appear
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            ſixty times bigger, than when he is in the
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            Apoge, and at the greateſt diſtance.</s>
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            <s xml:space="preserve">Now, that the Revolution of Venus and
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            Mercury alſo is about the Sun, may from
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            hence be evidenced. </s>
            <s xml:space="preserve">Firſt, Becauſe they are
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            never at any great diſtance from him. </s>
            <s xml:space="preserve">Se-
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            condly, Becauſe they are ſeen ſometimes a-
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            bove, and ſometimes below him. </s>
            <s xml:space="preserve">Thirdly,
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            Becauſe Venus, according to her different
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            ſcituations, does change her appearance as
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            the Moon.</s>
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            <s xml:space="preserve">4. </s>
            <s xml:space="preserve">There is yet another Argument, which
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            Ariſtotle himſelf doth repeat from Pytha-
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            goras. </s>
            <s xml:space="preserve">The moſt excellent Body ſhould have
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            the beſt place: </s>
            <s xml:space="preserve">but the Sun is the moſt ex-</s>
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