where it is said, _There is one glory of the Sunne, and another glory
of the Moone_. _Vlysses Albergettus_ urges, that in _Math. 24. 22._
+he selene ou dosei to phengos autes+, _The Moone shall not give her
light_: therefore (saies he) she hath some of her owne.

[Sidenote 1: _De Subtil. lib. 3._]

But to these wee may easily answer that the glory and light there spoken
of, may be said to be hers, though it be derived, as you may see in many
other instances.

The arguments from reason are taken either

1. From that light which is discerned in her, when there is a totall
eclipse of her owne body, or of the Sunne.

2. For the light which is discerned in the darker part of her body, when
she is but a little distant from the Sunne.

1. For when there are any totall eclipses, there appeares in her body a
great rednesse, and many times light enough to cause a remarkeable
shade, as common experience doth sufficiently manifest: but this cannot
come from the Sunne, since at such times either the earth, or her owne
body shades her from the Sun-beames, therefore it must proceede from her
owne light.

2. Two or three daies after the new Moone, wee may perceive light in her
whole body, whereas the rayes of the Sun reflect but upon a small part
of that which is visible, therefore 'tis likely that there is some light
of her owne.

In answering to these objections, I shall first shew, that this light
cannot be her owne, and then declare that which is the true reason of
it.

That it is not her own, appeares

1. From the variety of it at divers times; for 'tis commonly observed,
that sometimes 'tis of a brighter, sometimes of a darker appearance, now
redder, and at another time of a more duskish colour. The observation of
this variety in divers eclipses, you may see set downe by _Keplar_[1]
and many others, but now this could not be if that light were her owne,
that being constantly the same, and without any reason of such an
alteration: So that thus I may argue.

[Sidenote 1: _Opt. Astron. c. 7. num. 3._]

If there were any light proper to the Moone, then would that Planet
appeare brightest when she is eclipied in her Perige, being neerest to
the earth, and so consequently more obscure and duskish when she is in
her Apoge or farthest from it; the reason is, because the neerer any
enlightened body comes to the sight, by so much the more strong are the
species and the better perceived. This sequell is granted by some