Gravesande, Willem Jacob 's, Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1

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          <p>
            <s xml:id="echoid-s13782" xml:space="preserve">
              <pb o="43" file="0541" n="596" rhead="MATHEMATICA LIB. III. CAP. X."/>
            lente dantur; </s>
            <s xml:id="echoid-s13783" xml:space="preserve">hiſce in eodem plano, objecta hæc, repræ-
              <lb/>
            ſentari poſſunt; </s>
            <s xml:id="echoid-s13784" xml:space="preserve">quæ repræſentatio inverſa eſt, propter ra-
              <lb/>
            diorum interſectionem tranſeundo per vitrum; </s>
            <s xml:id="echoid-s13785" xml:space="preserve">& </s>
            <s xml:id="echoid-s13786" xml:space="preserve">ſenſi-
              <lb/>
            bilis, eſt in loco obſcuro, in quo lumen per ſolam len-
              <lb/>
            tem intrat, & </s>
            <s xml:id="echoid-s13787" xml:space="preserve">quidem illud ſolum quo objecta depingun-
              <lb/>
            tur.</s>
            <s xml:id="echoid-s13788" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s13789" xml:space="preserve">Hæc obtinent ubicunque lens ponatur, & </s>
            <s xml:id="echoid-s13790" xml:space="preserve">quidem circa
              <lb/>
            omnia objectorum puncta, luminis radiis illuſtrata, à quibus
              <lb/>
            lineæ rectæ non interruptæ ad lentem duci poſſunt; </s>
            <s xml:id="echoid-s13791" xml:space="preserve">ita ut
              <lb/>
            ſequenti Experimento probetur diviſibilitas memorata in lu-
              <lb/>
            mine, & </s>
            <s xml:id="echoid-s13792" xml:space="preserve">dividendi luminis capacitas in corporibus lumen
              <lb/>
            repercutientibus.</s>
            <s xml:id="echoid-s13793" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div2061" type="section" level="1" n="510">
          <head xml:id="echoid-head678" xml:space="preserve">
            <emph style="sc">Experimentum i</emph>
          .</head>
          <p>
            <s xml:id="echoid-s13794" xml:space="preserve">In loco obſcuro foramen detur, cui varia reſpondeant
              <lb/>
              <note position="right" xlink:label="note-0541-01" xlink:href="note-0541-01a" xml:space="preserve">TAB. IX.
                <lb/>
              fig. 2.</note>
            objecta, ad diſtantiam ad minimum quinquaginta pedum, & </s>
            <s xml:id="echoid-s13795" xml:space="preserve">
              <lb/>
            majorem. </s>
            <s xml:id="echoid-s13796" xml:space="preserve">Sit hoc V, & </s>
            <s xml:id="echoid-s13797" xml:space="preserve">in hoc detur lens convexa, quæ col-
              <lb/>
            ligit radios parallelos ad diſtantiam quatuor aut quinque pe-
              <lb/>
            dum; </s>
            <s xml:id="echoid-s13798" xml:space="preserve">ſi ad diſtantiam paululum majorem poſt lentem detur
              <lb/>
            planum album, in hoc objecta memorata pulcherrimis co-
              <lb/>
            loribus depinguntur. </s>
            <s xml:id="echoid-s13799" xml:space="preserve">Notandum lentem in ſitu ad planum
              <lb/>
            parallelo ponendam eſſe; </s>
            <s xml:id="echoid-s13800" xml:space="preserve">& </s>
            <s xml:id="echoid-s13801" xml:space="preserve">motu plani aut lentis detegi di-
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            ſtantiam ad quam objecta exactiſſimè repræſentantur.</s>
            <s xml:id="echoid-s13802" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s13803" xml:space="preserve">Hæc objectorum repræſentatio magnam cum illa, qua in
              <lb/>
            fundo oculi objecta viſa depinguntur, affinitatem habet, ut
              <lb/>
            ex oculi conſtructione patebit.</s>
            <s xml:id="echoid-s13804" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s13805" xml:space="preserve">Oculi figura, ſi capite extrahatur, præterpropter eſt
              <lb/>
              <note position="right" xlink:label="note-0541-02" xlink:href="note-0541-02a" xml:space="preserve">712.</note>
            ſphærica: </s>
            <s xml:id="echoid-s13806" xml:space="preserve">nihilominus pars anterior eſt paululum magis con-
              <lb/>
            vexa.</s>
            <s xml:id="echoid-s13807" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s13808" xml:space="preserve">Oculi ſectio in hac figurâ repræſentatur.</s>
            <s xml:id="echoid-s13809" xml:space="preserve"/>
          </p>
          <note position="right" xml:space="preserve">TAB. IX.
            <lb/>
          fig. 3.</note>
          <p>
            <s xml:id="echoid-s13810" xml:space="preserve">Pars magis convexa A A, eſt tranſlucida & </s>
            <s xml:id="echoid-s13811" xml:space="preserve">tunica cor-
              <lb/>
            nea vocatur.</s>
            <s xml:id="echoid-s13812" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s13813" xml:space="preserve">Totum oculi integumentum, corneâ exceptâ, vocatur
              <lb/>
            ſclerotica B A A B; </s>
            <s xml:id="echoid-s13814" xml:space="preserve">pars ſcleroticæ quæ corneæ adjacet,
              <lb/>
            vocatur adnata, ſive album oculi.</s>
            <s xml:id="echoid-s13815" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s13816" xml:space="preserve">Ab interiori parte cornea obtegitur tunicâ uvea dictâ, quæ
              <lb/>
            in medio foramen habet p p, quod nominatur pupilla.</s>
            <s xml:id="echoid-s13817" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s13818" xml:space="preserve">Uvea conſtat ex fibris circularibus concentricis, ad </s>
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