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

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            oſtendimus, quo pacto ex lateribus triangulorum
              <lb/>
            datis angulos eorum inveſtigare queant, ut nun-
              <lb/>
            quam duorum ſecundorum ſcrupulorum ſit à vero
              <lb/>
            diſſenſus, ſæpe ne unius quidem tertii. </s>
            <s xml:id="echoid-s1137" xml:space="preserve">Et hæc qui-
              <lb/>
            dem non levia commoda viſum iri confidimus. </s>
            <s xml:id="echoid-s1138" xml:space="preserve">Com-
              <lb/>
            perimus autem & </s>
            <s xml:id="echoid-s1139" xml:space="preserve">Renatum Carteſium, cujus viri
              <lb/>
            inventis cum Philoſophia univerſa tum Matheſis
              <lb/>
            plurimùm illuſtrata eſt, nonnulla quæ huc ſpectent
              <lb/>
            ſcriptis mandaſſe. </s>
            <s xml:id="echoid-s1140" xml:space="preserve">Ea vero defuncto ipſo in commen-
              <lb/>
            tariis reperta feruntur, neque adhuc reſcire potui-
              <lb/>
            mus quâ induſtriâ aut eventu hiſce manum admo-
              <lb/>
            verit. </s>
            <s xml:id="echoid-s1141" xml:space="preserve">Willebrordi autem Snellii geometræ eruditi
              <lb/>
            Cyclometricus extat, multo labore conſcriptus, qui-
              <lb/>
            que omnis in his eſt. </s>
            <s xml:id="echoid-s1142" xml:space="preserve">Atque ille non exiguam lau-
              <lb/>
            dem promeritus videretur, ſi præcipua duo theore-
              <lb/>
            mata, quibus omne id opus velut fundamentis ſu-
              <lb/>
            perſtructum eſt, demonſtrare potuiſſet. </s>
            <s xml:id="echoid-s1143" xml:space="preserve">Sed quas
              <lb/>
            ibi pro demonſtrationibus haberi poſtulat, propoſi-
              <lb/>
            tum minime comprobant: </s>
            <s xml:id="echoid-s1144" xml:space="preserve">ipſa vero theoremata, ſic-
              <lb/>
            ut in utroque evidenti ratione nos oſtendimus,
              <lb/>
            præclaram continent veritatem. </s>
            <s xml:id="echoid-s1145" xml:space="preserve">Et ea quidem ſe-
              <lb/>
            quentibus meritò inſerenda putavimus, quod cau-
              <lb/>
            ſæ eorum à noſtris pendeant inventis.</s>
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