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 Moon may be a World.
Waters afar off, miſtook them for Blood. Et
cauſa hujus eſt quia radius ſolaris in Aurora con-
2 Queſt. in
hoc cap.
traiht quondam rubedinem, propter vapores cam-
buſtos manentes circa ſuperficiem terrœ, per quos
raàii tranſeunt, &
ideo cum repercutiantur in
aqua ad oculos noſtros, trahunt ſecum eundem rubo-
borem, &
faciunt apparere locum aquarum, in quo
eſt repercuſſio, eſſe rubrum, ſaith Toſtatus.
Reaſon is, becauſe of his Rays, which being
in the lower Vapours, thoſe do convey an im-
perfect mixed Light upon the Waters.
the Moon being in the Earth's Shadow, and
the Sun Beams which are round about it, not
being able to come directly unto her Body, yet
ſome ſecond Rays there are, which paſſing
through the ſhadow, make her appear in that
ruddy colour:
So that ſhe muſt appear bright-
eſt when ſhe is Eclipſed, being in her Apoge,
or greateſt diſtance from us, becauſe then the
cone of the Earths ſhadow is leſs, and the
Refraction is made through a narrower
So on the contrary, ſhe muſt be
repreſented under a more Dark and Obſcure
form when ſhe is Eclipſed, being in her Peri-
ge or neareſt to the Earth, becauſe then ſhe is
Involv'd in a greater ſhadow, or bigger part
of the cone, and ſo the Refraction paſſing
through a greater Medium, the Light muſt
needs be Weaker which doth proceed from it.
If you ask now, what the Reaſon may be of
that Light which we Diſcern in the Darker
part of the New Moon?
I anſwer, ’tis Re-
flected from our Earth, which returns as great
a Brightneſs to that Planet, as it receives from
This I ſhall have occaſion to Prove after-

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