Casati, Paolo, De igne dissertationes physicae, 1686

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            <s xml:id="echoid-s1839" xml:space="preserve">
              <pb o="56" file="0068" n="68" rhead="Diſſertatio Tertia."/>
            perinde ac ſi immitteretur in vas firmiorum laterum: </s>
            <s xml:id="echoid-s1840" xml:space="preserve">ita quoquè
              <lb/>
            circunfluus aër craſſior aliquatenus reſiſtit, ne veſicæ latera exten-
              <lb/>
            dantur, ideoque comprimitur ingeſtus aër; </s>
            <s xml:id="echoid-s1841" xml:space="preserve">qui poſtmodum in
              <lb/>
            aëre raro, minuſque reſiſtente dilatari poteſt. </s>
            <s xml:id="echoid-s1842" xml:space="preserve">His & </s>
            <s xml:id="echoid-s1843" xml:space="preserve">ſimilibus
              <lb/>
            non videtur operæ pretium immorari. </s>
            <s xml:id="echoid-s1844" xml:space="preserve">Vnum ſupereſt, quod ali-
              <lb/>
            quâ indigeat explicatione. </s>
            <s xml:id="echoid-s1845" xml:space="preserve">In ſiphonem æqualium crurum vtrâ-
              <lb/>
            que extremitate hiantem infundunt Mercurium, non tamen omni-
              <lb/>
            no implent; </s>
            <s xml:id="echoid-s1846" xml:space="preserve">& </s>
            <s xml:id="echoid-s1847" xml:space="preserve">quia ſe Mercurius æqualiter librat, æqualis aë-
              <lb/>
            ris portio hinc & </s>
            <s xml:id="echoid-s1848" xml:space="preserve">hinc ſiphonem replet. </s>
            <s xml:id="echoid-s1849" xml:space="preserve">Appoſitis vtrique oſculo
              <lb/>
            digitis inuertitur ſiphon, & </s>
            <s xml:id="echoid-s1850" xml:space="preserve">aër in ſuperiorem ſiphonis curuatu-
              <lb/>
            ram ſe recipit: </s>
            <s xml:id="echoid-s1851" xml:space="preserve">Tum oſcula immerguntur Mercurio ſubiectorum
              <lb/>
            ſingulis vaſorum, atque amotis digitis deſcendit in vaſa pars Mer-
              <lb/>
            curij, pars in vtroque crure altitudinem habens æqualem ſuſpen-
              <lb/>
            ſa manet. </s>
            <s xml:id="echoid-s1852" xml:space="preserve">Firmatur ſiphon immotus, & </s>
            <s xml:id="echoid-s1853" xml:space="preserve">alterutrum vasita at-
              <lb/>
            tollitur, vt illud ſiphonis crus immergatur profundius: </s>
            <s xml:id="echoid-s1854" xml:space="preserve">tunc in
              <lb/>
            crure illo attollitur Mercurius, ſed tantundem in reliquo crure
              <lb/>
            deprimitur. </s>
            <s xml:id="echoid-s1855" xml:space="preserve">At ſi hæc eadem præſtiteris ſiphone eodem prorſus
              <lb/>
            pleno Mercurij, omni aëre excluſo, ſiquidem crura ponuntur lon-
              <lb/>
            giora digitis 30, deſcendit vtrinque Mercurius ad ſtatam altitudi-
              <lb/>
            nem: </s>
            <s xml:id="echoid-s1856" xml:space="preserve">verùm ſi vas alteri cruri ſubiectum attollatur aut deprima-
              <lb/>
            tur, attollitur quidem aut deprimitur ibi Mercurius, ſed in altero
              <lb/>
            crure immotus manet, quaſi cum illo nihil habens commercij.
              <lb/>
            </s>
            <s xml:id="echoid-s1857" xml:space="preserve">Quando aër intercipitur inter duos illos Mercurij cylindros, aiunt
              <lb/>
            eſſe non vt eorum nexum, ſed vt impedimentum, ne ad ſe viciſ-
              <lb/>
            ſim proximè accedant, adeòque, dum cylinder vnus Mercurij à
              <lb/>
            ſuo cylindro aërio attollitur, ab hoc vrgeri aërem intermedium,
              <lb/>
            vt reliquus deprimatur. </s>
            <s xml:id="echoid-s1858" xml:space="preserve">At cùm nihil aëris in ſiphonem admiſſum
              <lb/>
            fuit, cylindri illi Mercuriales nihil habent intermedium, quod
              <lb/>
            vrgeant, ſed ſinguli ſuſtinentur à ſuo aërio cylindro exteriùs
              <lb/>
            premente.</s>
            <s xml:id="echoid-s1859" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1860" xml:space="preserve">Maur. </s>
            <s xml:id="echoid-s1861" xml:space="preserve">Horum ìgitur Philoſophorum veſtìgìa prementibus di-
              <lb/>
            cendum eſt, duos aërios cylindros exteriùs incumbentes Mercu-
              <lb/>
            rio vaſorum ſuſtinere duos cylindrös Mercuriales in cruribus ſipho-
              <lb/>
            nis, ſimulque reniti virtuti elaſticę aëris intercluſi; </s>
            <s xml:id="echoid-s1862" xml:space="preserve">ſublato al-
              <lb/>
            tiùs vaſculo, ad digitos 4 ex: </s>
            <s xml:id="echoid-s1863" xml:space="preserve">gr:</s>
            <s xml:id="echoid-s1864" xml:space="preserve">, Mercurialem cylindrum bre-
              <lb/>
            uiorem factum minùs ponderare, ac propterea exteriorem aërium
              <lb/>
            cylindrum, licèt digitis quatuor diminutum, præpollentem reli-
              <lb/>
            quo fiſtulæ Mercurio ex vaſe in fiſtulam extrudere Mercurium </s>
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