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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[11.] PROP. V.
[12.] PROP. VI.
[13.] PROP. VII.
[14.] PROP. VIII.
[15.] PROP. IX.
[16.] PROP. X.
[17.] PROP. XI.
[18.] PROP. XII.
[19.] PROP. XIII.
[20.] PROP. XIV.
[21.] The Firſt Book. That the MOON May be a WORLD. The Firſt Propoſition, by way of Preface.
[22.] Sed vanus ſtolidis hæc omnia finxerit Error.
[23.] Solis lunæq; labores.
[24.] Cum fruſtra reſonant æra auxiliaria Lunæ.
[25.] Una laboranti poterit ſuccerrere Lunæ.
[26.] Gantus & è cælo poſſunt deducere Lunam.
[27.] Cantus & ſi curru lunam deducere tentant, Et facerent, ſi non æra repulſa ſonant.
[28.] PROP. II. That a Plurality of Worlds doth not contradict any Principle of Reaſon or Faith.
[29.] Æſtuas infelix auguſto limite mundi.
[30.] PROP. III. That the Heavens do not conſiſt of any ſuch pure Matter, which can priviledge them from the like Change and Corruption, as theſe Inferiour, Bodies are liable unto.
[31.] Necnon Oceano paſci phæbumque polumq; Gredimus.
[32.] PROP. IV. That the Moon is a Solid, Compacted, Opacous Body.
[33.] PROP. V. That the Moon hath not any Light of her own.
[34.] PROP. VI. That there is a World in the Moon, bath been the direct Opinion of many Ancient, with ſome Modern Mathematicians, and may probably de deduc’d from the Tenents of others.
[35.] PROP. VII. That thoſe Spots and brighter parts, which by our ſight may be diſtinguiſhed in the Moon, do ſhew the difference betwixt the Sea and Land, in that other World.
[36.] PROP. VIII. The Spots repeſent the Sea, and the brighter parts the Land.
[37.] PROP. IX. That there are high Mountains, deep Vallies, and ſpacious Plains in the Body of the Moon.
[38.] PROP. X. That there is an Atmo-ſphæra, or an Orb of groſs, Vaporous Air, immediately encompaſſing the body of the Moon.
[39.] PROP. XI. That as their World is our Moon, ſo our World is their Moon.
[40.] Provehimur portu, terræque urbeſque recedunt.
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              <pb o="90" file="0102" n="102" rhead="That the Moon may be a World."/>
            Aggregate of the quadrate from A B a
              <lb/>
            Hundred, and B G a 1000. </s>
            <s xml:id="echoid-s1303" xml:space="preserve">will be 1010000.
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            </s>
            <s xml:id="echoid-s1304" xml:space="preserve">unto which the Quadrat ariſing from A G
              <lb/>
            muſt be equal; </s>
            <s xml:id="echoid-s1305" xml:space="preserve">according to the 47th Propoſi-
              <lb/>
            tion in the ſirſt Book of Elements. </s>
            <s xml:id="echoid-s1306" xml:space="preserve">There-
              <lb/>
            fore the whole Line A G is ſomewhat more
              <lb/>
            than 104. </s>
            <s xml:id="echoid-s1307" xml:space="preserve">and the diſtance betwixt H A muſt
              <lb/>
            be above four Miles, which was the thing to
              <lb/>
            be prov'd.</s>
            <s xml:id="echoid-s1308" xml:space="preserve"/>
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            <s xml:id="echoid-s1309" xml:space="preserve">But it may be again Objected, if there be
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            ſuch rugged parts, and ſo high Mountains, why
              <lb/>
            then cannot we diſcern them at this diſtance ?
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            </s>
            <s xml:id="echoid-s1310" xml:space="preserve">why doth the Moon appear unto us ſo exactly
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            round, and not rather as a Wheel with Teeth.</s>
            <s xml:id="echoid-s1311" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s1312" xml:space="preserve">I anſwer, by reaſon of too great a diſtance;
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            </s>
            <s xml:id="echoid-s1313" xml:space="preserve">For if the whole Body appear to our Eye ſo
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            little, then thoſe parts which bear ſo ſmall a
              <lb/>
            proportion to the whole, will not at all be ſen-
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            ſible.</s>
            <s xml:id="echoid-s1314" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s1315" xml:space="preserve">But it may be replyed, if there were any
              <lb/>
            ſuch remarkable Hills, why does not the Limb
              <lb/>
            of the Moon appear like a Wheel with Teeth,
              <lb/>
            to thoſe who look upon it through the great
              <lb/>
            Perſpective, on whoſe Witneſs you ſo much
              <lb/>
            depend? </s>
            <s xml:id="echoid-s1316" xml:space="preserve">Or what reaſon is there that ſhe ap-
              <lb/>
            pears as exactly round through it, as ſhe doth
              <lb/>
            to the bare Eye? </s>
            <s xml:id="echoid-s1317" xml:space="preserve">Certainly then, either there
              <lb/>
            is no ſuch thing as you imagin, or elſe the
              <lb/>
            Glaſs fails much in this Diſcovery.</s>
            <s xml:id="echoid-s1318" xml:space="preserve"/>
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            <s xml:id="echoid-s1319" xml:space="preserve">To this I ſhall anſwer out of Galilæus.</s>
            <s xml:id="echoid-s1320" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s1321" xml:space="preserve">1. </s>
            <s xml:id="echoid-s1322" xml:space="preserve">You muſt know that there is not meer-
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            ly one rank of Mountains about the edge of
              <lb/>
            the Moon, but divers Orders, one Mountain
              <lb/>
            behind another, and ſo there is ſomewhat to
              <lb/>
            hinder thoſe void ſpaces, which otherwiſe, per-
              <lb/>
            haps, might appear.</s>
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