Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 2: Opera geometrica. Opera astronomica. Varia de optica

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        <div xml:id="echoid-div529" type="section" level="1" n="208">
          <pb file="0534" n="557" rhead="INDEX RERUM."/>
          <note style="it" position="right" xml:space="preserve">
            <lb/>
          In Jove dies eſſe horarum quinque. # 700.
            <lb/>
          Et perpetuum æquinoctium. # 701.
            <lb/>
          Planeticolis ſtellas fixas eodem modo ap-
            <lb/>
          # parere, ac nobis. # 702.
            <lb/>
          Qualis ſit Planetarum aſpectus, dierum
            <lb/>
          # ratio in Saturno. # 702.
            <lb/>
          Qualis ſit Annuli aſpectus in Saturno.
            <lb/>
          # 703.
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          De Luna pauciora conjici poſſe. # 704.
            <lb/>
          Satellitum Saturni & Jovis eandem ac
            <lb/>
          # Lunæ rationem eſſe. # 705.
            <lb/>
          Lunam montibus & vallibus diſtinctam
            <lb/>
          # eſſe. # 705.
            <lb/>
          Carere vero mari. # 705.
            <lb/>
          Fluviis. # 706.
            <lb/>
          Nubibus. # 706.
            <lb/>
          Aëre & aqua. # 706.
            <lb/>
          Hinc de animantibus & ſtirpibus incer-
            <lb/>
          # tiorem conjecturam eſſe. # 707.
            <lb/>
          Jovis ac Saturni Lunas, non ſecus ac
            <lb/>
          # noſtram Telluri, eandem partem ſuo
            <lb/>
          # Planetæ obvertere. # 707.
            <lb/>
          Lunæ incolis ſi qui ſint, qualis appari-
            <lb/>
          # tura ſit cælorum conſtitutio, dierum
            <lb/>
          # ratio, & c. # 708.
            <lb/>
          Quod ad Jovis & Saturni Lunas facile
            <lb/>
          # transferre eſt. # 709.
            <lb/>
          Solaris mundi ſecundum veram propor-
            <lb/>
          # tionem deſcriptio. # 710.
            <lb/>
          Immenſitas intervallorum inter Solem
            <lb/>
          # & Planetas illuſtratur comparatio-
            <lb/>
          # ne cum motu globi è tormento emiſſi.
            <lb/>
          # 711.
            <lb/>
          In Sole omnem conjecturam deficere.
            <lb/>
          # 712.
            <lb/>
          Faculas Solares incertas videri. # 712.
            <lb/>
          Propter calorem nulla illic vivere corpo-
            <lb/>
          # ra noſtris ſimilia. # 712.
            <lb/>
          Stellas fixas totidem eſſe Soles. # 713.
            <lb/>
          Eas ſpargi per vaſta cæli ſpatia, & a-
            <lb/>
          # lias ab aliis, ut proximas à Sole re-
            <lb/>
          # moveri. # 714.
            <lb/>
          Nec Solem præ cæteris eminere contra
            <lb/>
          # Keplerum notatur. # 714.
            <lb/>
          Nihil impedire, quo minus credamus cir-
            <lb/>
          # ca unamquamque ex fixis, ut circa
            <lb/>
          # Solem, eſſe Planetas. # 715.
            <lb/>
          Modus probabiliter inveſtigandi diſtan-
            <lb/>
          # tiam fixarum à Sole. # 717.
            <lb/>
          Unumquemque Solem vortice cingi, ſed
            <lb/>
          # Carteſianis multum diſſimili; contra
            <lb/>
          # quem pluribus diſputatur. # 719.
            <lb/>
          </note>
        </div>
        <div xml:id="echoid-div530" type="section" level="1" n="209">
          <head xml:id="echoid-head303" xml:space="preserve">TOMUS QUARTUS
            <lb/>
          OPERA MISCELLANEA.</head>
          <note style="it" position="right" xml:space="preserve">
            <lb/>
            <emph style="sc">De</emph>
            <emph style="sc">Ratiociniis in</emph>
            <emph style="sc">Luddo</emph>
          A-
            <lb/>
          #
            <emph style="sc">LEÆ</emph>
          # 723. Ad calcem Exerci-
            <lb/>
          # tationum Math. Schotenii.
            <lb/>
          Si a vel b expectem, quorum utrumvis
            <lb/>
          # æquè facilè mibi obtingere poſſit, ex-
            <lb/>
          # pectatio mea dicenda eſt valere {a+b/2}.
            <lb/>
          # 728.
            <lb/>
          Si a, b, vel c, expectem, quorum unum-
            <lb/>
          # quodque pari facilitate mibi obtingere
            <lb/>
          # poſſit, expectatio mea æſtimanda eſt
            <lb/>
          # {a+b+c/3}. # 729.
            <lb/>
          Si numerus caſuum, quibus mibi eve-
            <lb/>
          # niet a, ſit p; numerus autem caſuum
            <lb/>
          # quibus mihi eveniet b, ſit q; ſumendo
            <lb/>
          # omnes caſus æquè in proclivi eſſe: ex-
            <lb/>
          # pectatio mea valebit {pa+bq/p+q}. # 730.
            <lb/>
          De facienda diſtributione inter diverſos
            <lb/>
          </note>
        </div>
      </text>
    </echo>
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