Descartes, René
,
Renati Des-Cartes principia philosophiae
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quae veniunt ab alio polo & contrario modo ſunt in
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tortae recipiendas. </
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CV.
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Multos eſſe meatus in
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maculis, per quos li
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berè tranſeunt parti
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culae ſtriatae. </
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Nempe particulae ſtriatae primi elementi, venientes
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non ab uno aliquo pundo duntaxat, ſed à totâ coeli
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regione quae eſt verſus polum A, & tendentes
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verſus unicum punctum I, ſed verſus totum medium
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coeli H I Q, formant ſibi meatus in maculâ
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deſg
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, ſe
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cundùm lineas rectas axi
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ſd
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paralleles, vel nonnihil
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utrimque verſus
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d
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convergentes, horumque meatuum
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aditus in totà ejus ſuperficiei medietate
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eſg
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ſunt, & exitus in alià medietate
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edg
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: ita ſcilicet ut
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particulae ſtriatae, venientes à parte A, facilè quidem
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ipſos ingredi poſſint per partem
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eſg
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, & egredi per ad
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verſam
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edg
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, non autem unquam regredi per hanc
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edg
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,
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nec egredi per
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eſg
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. </
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>Quia, cùm tota iſta macula
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conſtet niſi ex ramentis primi elementi minutiſſimis,
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quae, ſibi mutuò adhaerentia, quoſdam quaſi ramulos
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componunt, particulae ſtriatae, venientes à parte
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ſ
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,
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iſtorum ramulorum extremitates, ſibi in meatibus iſtis
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occurrentes, inflectere debuerunt verſus
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d
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; ideòque,
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ſi per eoſdem meatus eis eſſet regrediendum à
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d
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ver
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ſus
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ſ
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, iſtae ramulorum extremitates nonnihil aſſurgen
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tes ipſarum tranſitum impedirent. </
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particulae ſtriatae, venientes à parte B, meatus alios
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ſibi excavarunt, quorum ingreſſus in totâ
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ſparſi ſunt, & egreſſus in adverſâ eſg. </
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CVI.
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Quae ſit diſpoſitio iſto
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rum meatuum, & cur
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particulae ſtriatae per
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illos retrogredi non
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poſſint. </
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Notandumque eſt iſtos etiam meatus cochlearum
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inſtar eſſe excavatos, ad formam particularum ſtriata
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rum quas admittunt, ideòque illos qui unis patent, non
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patere aliis à polo oppoſito venientibus, &
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modo intortis. </
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