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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[41.] PROP. XII.
[42.] PROP. XIII.
[43.] PROP. XIV.
[44.] FINIS.
[45.] A DISCOURSE Concerning a Rem Planet. Tending to prove That ’tis probable our EARTH is one of the PLANETS. The Second Book. By John Wilkins, late L. Biſhop of Cheſter.
[46.] LONDON: Printed by J. D. for John Gellibrand, at the Golden Ball in St. Paul’s Church-Yard. M.DC.LXXXIV.
[47.] To the Reader.
[48.] PROP. I.
[49.] PROP. II.
[50.] PROP. III.
[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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284104That the Earth may be a Planet. anſwerable to the ſeveral diſtances of the
Planets from one another.
Thus a Cube will meaſure the diſtance be-
twixt Saturn and Jupiter;
a Pyramis or Te-
traëdron, the diſtance betwixt Jupiter and
Mars ;
a Dodecaëdron, the diſtance betwixt
Mars and the Earth;
an Icoſaëdron, the diſtance
betwixt the Earth &
Venus; and an Octoëdron,
the diſtance betwixt Venus &
Mercury: that
is, if we conceive a Circumference deſcri-
bed immediately without the Cube, and a-
nother within it, the diſtance between theſe
two, will ſhew what proportional diſtance
there is betwixt the Orb of Saturn, and
that of Jupiter.
Thus alſo, if you con-
ceive a Circumference deſcribed on the out-
ſide of a Pyramis, or Tetraëdron, and ano-
ther within it, this will ſhew ſuch a propor-
tional diſtance, as there is betwixt the Orb
of Mars, from that of Jupiter.
And ſo of
the reſt.
Now if any ask why there are but ſix
Planetary Orbs?
Keplar anſwers, Zuia non
oportet plures quàm quinque proportiones eſſe,
totidem nempè quot regularia ſunt in Matheſi
corpora.
Sex autem termini conſummant hunc
proportionum numerum:
Becauſe there are
but five proportions, ſo many as there are
regular Bodies in Mathematicks, each of
whoſe Sides and Angles are equal one to
another.
But now there are ſix terms re-
quired to conſummate this number of pro-
portions;
and ſo conſequently, there can
be but ſix primary Planets.

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