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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[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.]
[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.]
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That the Moon may be a World.
therefore the Beams muſt Sink into it, and can-
not ſo ſtrongly and clearly be reflected.
in ſpeculo ubi plumbum abr aſum fuerit, ſaith Gar-
dan, as in Looking-glaſſes where part of the
Lead is raſed off, and nothing left behind to
Reverberate the Image, the ſpecies muſt there
paſs through, and not back again;
ſo it is
where the Beams penetrate and ſink into the
ſubſtance of the Body, there cannot be ſuch an
immediate and ſtrong Reflexion, as when they
are beat back from the Superficies, and there-
fore the Sun cauſes a greater Heat by far upon
the Land than upon the Water.
Now as for
that Experiment where it is ſaid, that the wa-
ters have a greater brightneſs than the Land:
I anſwer, ’tis true only there where they re-
preſent the Image of the Sun or ſome bright
Cloud, and not in other places, eſpecially if
we look upon them at any great diſtance, as is
very plain by common Obſervation.
And ’tis certain, that from any high Moun-
tain the Land does appear a great deal brighter
than any Lake or River.
This may yet further be illuſtrated by the
ſimilitude of a Looking-glaſs hanging upon a
Wall in the Sun-ſhine, where, if the Eye be
not placed in the juſt line of Reflexion from
the Glaſs, ’tis manifeſt that the Wall will be
of a brighter appearance than the Glaſs.
indeed in the Line of Reflexion, the Light of
the Glaſs is equal almoſt unto that which comes
immediately from the Sun it ſelf;
but now
this is only in one particular place, and ſo is
not like that Brightneſs which we diſcern in
the Moon, becauſe this does appear equally

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