Casati, Paolo, De igne dissertationes physicae, 1686

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              <pb o="43" file="0055" n="55" rhead="De ignis loco."/>
            ſuperficiem Mercurij in ſubiecto vaſe premens ſuſtinet in fiſtulâ
              <lb/>
            cylindrum Mercurij æqualis grauitatis, aut etiam in inclinatam
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            fiſtulam extrudit è vaſe Mercurium vſque ad altitudinem per-
              <lb/>
            pendiculi digitorum 30, quia in plano inclinato minora ſunt
              <lb/>
            eiuſdem grauitatis momenta, quàm in perpendiculo, ac pro-
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            pterea præualet aëris grauitas; </s>
            <s xml:id="echoid-s1488" xml:space="preserve">quare in eadem fiſtulâ æqualis eſt
              <lb/>
            Mercurij altitudo, ſiue ampla, ſiue exigua ſit ſuperſicies Mer-
              <lb/>
            curij in vaſe? </s>
            <s xml:id="echoid-s1489" xml:space="preserve">cum tamen maior ſit cylindrus, & </s>
            <s xml:id="echoid-s1490" xml:space="preserve">maior eius gra-
              <lb/>
            uitas, cuius maior eſt baſis ſub æquali altitudine: </s>
            <s xml:id="echoid-s1491" xml:space="preserve">igitur à maio-
              <lb/>
            re & </s>
            <s xml:id="echoid-s1492" xml:space="preserve">grauiore aëris cylindro plus Mercurij ſuſtinendum eſſet, vt
              <lb/>
            fieret æ quilibrium.</s>
            <s xml:id="echoid-s1493" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1494" xml:space="preserve">Dand. </s>
            <s xml:id="echoid-s1495" xml:space="preserve">Cylindrum hunc aërium aſſerunt æqualis eſſe baſis
              <lb/>
            cum baſe cylindri Mercurialis in fiſtulâ, ac proinde æqualem eſ-
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            ſe vtriuſque cylindri grauitatem abſolutam, cum ſint altitudines
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            in reciprocâ Ratione grauitatum ſecundùm ſpeciem.</s>
            <s xml:id="echoid-s1496" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1497" xml:space="preserve">Maur. </s>
            <s xml:id="echoid-s1498" xml:space="preserve">Ex omnibus igitur cylindris aërijs Mercurio vaſis in-
              <lb/>
            cumbentibus, & </s>
            <s xml:id="echoid-s1499" xml:space="preserve">æqualem baſim cum baſi fiſtulę habentibus,
              <lb/>
            vnicus eſt, qui Mercurio fiſtulæ obſiſtit, reliqui otiantur. </s>
            <s xml:id="echoid-s1500" xml:space="preserve">Ce-
              <lb/>
            do mihi hunc ſingularem cylindrum, cui peculiaris hęc cura
              <lb/>
            demandata eſt. </s>
            <s xml:id="echoid-s1501" xml:space="preserve">An qui proximus? </s>
            <s xml:id="echoid-s1502" xml:space="preserve">an qui ad dexteram? </s>
            <s xml:id="echoid-s1503" xml:space="preserve">an
              <lb/>
            qui ad ſiniſtram? </s>
            <s xml:id="echoid-s1504" xml:space="preserve">Sed ſi & </s>
            <s xml:id="echoid-s1505" xml:space="preserve">reliqui graues ſunt, atque premunt
              <lb/>
            Mercurium vaſis, quare nihil habent virium aduersùs Mercu-
              <lb/>
            rium fiſtulæ? </s>
            <s xml:id="echoid-s1506" xml:space="preserve">haberent autem, ſi alia fiſtula pariter eidem vaſi
              <lb/>
            immergeretur. </s>
            <s xml:id="echoid-s1507" xml:space="preserve">Vtique in antliâ aquam propellente ex modiolo
              <lb/>
            in tubum, ſi embolus aquam modioli amplioris vrgeat per
              <lb/>
            digitum, fit cylindrus aquæ in tubo longior, quàm ſi pariter per
              <lb/>
            digitum vrgeretur aqua in modiolo tenuiori. </s>
            <s xml:id="echoid-s1508" xml:space="preserve">Similiter ſi Mercu-
              <lb/>
            rio vaſis immiſſa eſſet ad perpendiculum fiſtula vtrinque hians,
              <lb/>
            aptiſſimè congruens foramini operculi lignei exquiſitè reſpon-
              <lb/>
            dentis amplitudini vaſis, tum operculum impoſito pondere vrge-
              <lb/>
            ret ſubiectum Mercurium, hic vtique extruderetur ſurſum in fi-
              <lb/>
            ſtulam: </s>
            <s xml:id="echoid-s1509" xml:space="preserve">Iam ſi vaſorum ſuperficies inæquales eſſent, & </s>
            <s xml:id="echoid-s1510" xml:space="preserve">par eſſet
              <lb/>
            ex eodem impoſito pondere operculi depreſſio in vtroque vaſe,
              <lb/>
            manifeſtum eſt plus Mercurij extrudi ex vaſe ampliore, quàm ex
              <lb/>
            minore. </s>
            <s xml:id="echoid-s1511" xml:space="preserve">Atquiidem, quod opercula illa, videntur præſtare aë-
              <lb/>
            rij cylindri incumbentes toti vaſorum inæqualium ſuperficiei.
              <lb/>
            </s>
            <s xml:id="echoid-s1512" xml:space="preserve">Igitur plus virium habent in vaſe ampliore: </s>
            <s xml:id="echoid-s1513" xml:space="preserve">id quod tamen
              <lb/>
            non reſpondet experimento. </s>
            <s xml:id="echoid-s1514" xml:space="preserve">Neque enim hìc res ſe </s>
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