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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128116That the Moon may be a World. by the ſame reaſon, may a brighter Vapour
be the cauſe of theſe appearances.

But how probable ſoever this Opinion may
ſeem, yet if well conſider’d, you ſhall find it
altogether abſurd and impoſſible: for,

1. Theſe Stars were never ſeen there before,
and ’tis not likely, that a Vapour being hard
by us, can ſo multiply that Light, which could
not before be at all diſcern’d.

2. This ſuppos’d Vapour cannot be either
contracted into a narrow compaſs, or dilated
into a broad. 1. It could not be within a little
ſpace, for then that Star would not appear
with the ſame multiplyed Light to thoſe in
other Climates. 2. It cannot be a dilated Va-
pour, for then other Stars which were diſcer-
ned through the ſame Vapour, would ſeem as
big as that; this Argument is the ſame in ef-
fect, with that of the Paralax, as you may ſee
in this Figure.

5[Figure 5]

Suppoſe AB to be a Hemiſphere of one
Earth, CD to be the upper part of the high-
eſt Region, in which there might be either a
contracted Vapour, as G, or elſe a dilated one;

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Scan	Original
101	89
102	90
103	91
104	92
105	93
106	94
107	95
108	96
109	97
110	98
111	99
112	100
113	101
114	102
115	103
116	104
117	105
118	106
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Scan	Original
101	89
102	90
103	91
104	92
105	93
106	94
107	95
108	96
109	97
110	98
111	99
112	100
113	101
114	102
115	103
116	104
117	105
118	106
119	107
120	108
121	109
122	110
123	111
124	112
125	113
126	114
127	115
128	116
129	117
130	118