Descartes, René, Renati Des-Cartes principia philosophiae

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1qui ſunt infra D verſùs K, quàm ab iis qui ſunt ſupra B
verſùs L, iis autem qui ſunt verſùs N & Z ſint ſimiles,
liberiùs ſe diſſundunt verſùs A & C, quàm verſùs B &
D.
Unde ſequitur ambitum ABCD non eſſe circulum
perfectum, ſed magis ad ellipſis figuram a accedere;

materiam coeli lentiùs ferri inter C & A, quàm inter B
&sD b; ideòque Lunam, quae ab iſtâ materia coeli defer­
tur, & propiùs accedere debere verſùs Terram, ſi ſit in
motu ad accedendum, & magis removeri, ſi ſit in motu
ad recedendum, cùm ipſam contingit eſſe verſùs A
C, quàm cùm eſt verſùs B vel D.
CLIII.
Cur Luna celeriùs in­
cedat, & a ſuo motu
medio minùs aberret
in conjunctionibus,
quàm in quadris; &
cur ejus coelum non
ſit rotundum.
5
1o
54[Figure 54]55[Figure 55]

Neque mirabimur quòd Planetae c, qui juxta Satur­
num eſſe dicuntur, lentiſſimo vel nullo motu circa ip­
ſum ferantur, contrà autem qui ſunt juxta Jovem, circa

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