Descartes, René, Renati Des-Cartes principia philosophiae
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              tim motu globulorum coeleſtium ex hoc corpore D
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              ejectae ſunt; & harum quidem nonnullae ſe corpori C
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              adjunxerunt, ſed maxima pars ſurſum aſcendit verſus
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              E & B, materiamque augendo corpori E ſubminiſtravit. </s>
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              XXXIX.
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              De hujus quarti corpo­
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              ris accretione, & ter­
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              tii expurgatione. </s>
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              10</s>
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              20</s>
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              30</s>
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              Quippe tempore diei & aeſtatis, cùm Sol
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              me­
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              dietatem corporis D vi luminis & caloris rarefaciebat,
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              non poterat omnis materia iſtius medietatis inter duo
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              corpora vicina C & E contineri; neque haec corpora
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              vicina, quae dura erant, locis expellere, atque ideò ple­
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              raeque ejus materiae particulae per poros corporis
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              verſus B aſcendebant, quae deinde tempore noctis &
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              hyemis, ceſſante iſta rarefactione, ob gravitatem ſuam
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              rurſus deſcendebant. </s>
              <s>Multae autem cauſſae erant, prop­
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              ter quas particulae tertii elementi, quae ſic ex corpore
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              D egrediebantur, non poterant omnes poſtea in
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              reverti. </s>
              <s>Nam majore impetu exibant, quàm redibant;
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              quia major eſt vis dilatationis à calore orta, quàm gra­
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              vitatis. </s>
              <s>Et idcirco multae per anguſtos meatus corpo­
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              ris E ſibi viam faciebant ad aſcendendum, quae poſtea
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              nullam invenientes ad revertendum, in ejus
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              conſiſtebant; ac etiam nonnullae, meatibus iſtis im­
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              pactae, ulteriùs aſcendere non valentes, aliis deſcenſu­
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              ris vias occludebant. </s>
              <s>Praeterea quaecunque caeteris
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              errant tenuiores, & à figurâ laevi & tereti magis diſta­
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              bant, ſolo globulorum coeleſtium motu extra
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              D pellebantur, ideòque primae ſe offerebant ad aſcen­
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              dendum verſus E & B; atque horum corporum particu­
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              lis occurrendo, non rarò figuras ſuas mutabant, & vel
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              illis adhaerebant, vel ſaltem deſinebant aptae eſſe ad re­
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              vertendum verſus D. </s>
              <s>Unde ſequi debuit poſt
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              dies & annos, ut magna pars hujus corporis D eſſet </s>
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