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 Earth may be a Planet.
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              <pb o="167" file="0347" n="347" rhead="That the Earth may be a Planet."/>
            that Hemiſphere muſt be involved in darkneſs,
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            which did before partake of Light. </s>
            <s xml:space="preserve">And
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            thoſe Parallels towards the North and South
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            Poles, will ſtill be divided by the ſame ine-
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            quality. </s>
            <s xml:space="preserve">But thoſe bigger parts, which were
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            before enlightned, will now be darkned, & </s>
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            vice verſa. </s>
            <s xml:space="preserve">As when the Earth was in N, the
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            Artick Circle MN was wholly enlightned,
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            and the Antartick KL altogether in the
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            dark. </s>
            <s xml:space="preserve">So now, when it is in A, the Antar-
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            tick KL, will be wholly in the Light, and
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            the other MN, altogether obſcured. </s>
            <s xml:space="preserve">Where-
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            as the Sun before was vertical to the Inhabi-
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            tants at the Tropick FG. </s>
            <s xml:space="preserve">So now is he in the
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            ſame ſcituation to thoſe that live under the
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            other Tropick HI. </s>
            <s xml:space="preserve">And whereas before the
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            Pole did incline 23 degrees 30 minutes to-
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            wards the Sun, ſo now does it recline as much
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            from him. </s>
            <s xml:space="preserve">The whole difference will amount
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            to 47 degrees, which is the diſtance of one
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            Tropick from the other.</s>
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            <s xml:space="preserve">But now, in the two other Figures, when
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            the Earth is in either of the Equinoctials ♈ ♎,
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            the Circle of Illumination will paſs through
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            both the Poles; </s>
            <s xml:space="preserve">and thereſore muſt divide
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            all the Parallels into equal parts. </s>
            <s xml:space="preserve">From
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            whence it will follow, that the Day and
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            Night muſt then be equal in all places of the
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            World.</s>
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            <s xml:space="preserve">As the Earth is here repreſented in ♎, it
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            turns only the enlightned part towards us;
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            </s>
            <s xml:space="preserve">as it is in ♈, we ſee its Nocturnal Hemiſphere.</s>
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            <s xml:space="preserve">So that according to this Hypotbeſis, we
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            may eaſily and exactly reconcile every Ap-</s>
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