Casati, Paolo, De igne dissertationes physicae, 1686

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              <pb o="55" file="0067" n="67" rhead="De ignis loco."/>
            res, ſed æqualis grauitatis cum toto cylindro ligneo: </s>
            <s xml:id="echoid-s1813" xml:space="preserve">ergo non eſt
              <lb/>
            æqualis preſſio in *ab*, atque in *io*, cum tamen fiat conſiſtentia
              <lb/>
            tum liquoris, tum ligni. </s>
            <s xml:id="echoid-s1814" xml:space="preserve">Ex quo non obſcurè arguitur, nullam
              <lb/>
            eſſe preſſionem aëris ſupra aquam. </s>
            <s xml:id="echoid-s1815" xml:space="preserve">Quod verò narrant in Galliâ
              <lb/>
            obſeruatum de vtre ad radicem altiſſimi montis languido, in ſum-
              <lb/>
            mo autem iugi vertice diſtento, & </s>
            <s xml:id="echoid-s1816" xml:space="preserve">iterum flacceſcente, cum in
              <lb/>
            vallem reportaretur. </s>
            <s xml:id="echoid-s1817" xml:space="preserve">quaſi incluſus aër deueniens in ſuperiorem
              <lb/>
            locum, vbi à breuiore & </s>
            <s xml:id="echoid-s1818" xml:space="preserve">minùs graui aëris cylindro premeretur, vi
              <lb/>
            ſuâ elaſticâ ſe ipſe expanderet, reductus autem ad infimum locum
              <lb/>
            magis premeretur: </s>
            <s xml:id="echoid-s1819" xml:space="preserve">Non me admodum facilem habet ad aſſentien-
              <lb/>
            dum: </s>
            <s xml:id="echoid-s1820" xml:space="preserve">niſi fortè vter in aſcenſu Solis radijs percuſſus incaluit, & </s>
            <s xml:id="echoid-s1821" xml:space="preserve">
              <lb/>
            erumpentes ex corpore defatigati in motu hominis illum deferen-
              <lb/>
            tis ſubferuidos halitus concepit, vnde & </s>
            <s xml:id="echoid-s1822" xml:space="preserve">raritatem aſſumpſerit
              <lb/>
            incluſus aër, quam poſtea depoſuerit ad veſperum, & </s>
            <s xml:id="echoid-s1823" xml:space="preserve">in vallis
              <lb/>
            vmbrâ, iterum concreſcens vi frigoris. </s>
            <s xml:id="echoid-s1824" xml:space="preserve">Subuereor autem, neid
              <lb/>
            excogitatum fuerit ex pręconceptâ opinione elateris, ob quan-
              <lb/>
            dam analogiam cum veſiculâ flaccidâ, quæ in Machinâ Boylæâ,
              <lb/>
            cum exhauriretur aër, intumeſcebat: </s>
            <s xml:id="echoid-s1825" xml:space="preserve">ibi quippe rareſcens aër
              <lb/>
            vndequaque membranam veſicæ attrahebat, & </s>
            <s xml:id="echoid-s1826" xml:space="preserve">incluſum in ve-
              <lb/>
            ſicâ aërem diſtrahebat; </s>
            <s xml:id="echoid-s1827" xml:space="preserve">qui rurſum ſe contrahebat, atque veſica
              <lb/>
            detumeſcebat, cum, nouo aëre in Machinam admiſſo, vis ceſſa-
              <lb/>
            bat attrahens circumflui aëris ad priſtinum ſtatum ſe reſtituentis.
              <lb/>
            </s>
            <s xml:id="echoid-s1828" xml:space="preserve">At in libero aëre nihil huiuſmodi contingit. </s>
            <s xml:id="echoid-s1829" xml:space="preserve">Certè tam multos
              <lb/>
            vtres oleo repletos, & </s>
            <s xml:id="echoid-s1830" xml:space="preserve">nonnihil aëris habentes ex Liguriâ in Gal-
              <lb/>
            liam Ciſalpinam quaſi perpetuò deuehi nouimus, & </s>
            <s xml:id="echoid-s1831" xml:space="preserve">nullum in-
              <lb/>
            flationis veſtigium apparuit in ſummorum montium tranſitu: </s>
            <s xml:id="echoid-s1832" xml:space="preserve">niſi
              <lb/>
            fortè hos nimis humiles dicas. </s>
            <s xml:id="echoid-s1833" xml:space="preserve">An in vitreâ philâ, cuius oſculo
              <lb/>
            obducta ſit membrana, ſi in altiſſimum montem transferatur, in-
              <lb/>
            cluſus aër exercet vim elaſticam ita, vt membranam magis di-
              <lb/>
            ſtendat? </s>
            <s xml:id="echoid-s1834" xml:space="preserve">modo abſit vis caloris rarum illum facientis. </s>
            <s xml:id="echoid-s1835" xml:space="preserve">Sed, vt ali-
              <lb/>
            quid narrantium authoritati tribuamus, haud dubium quin mo-
              <lb/>
            tui medium propellendum reſiſtat pro ſua denſitate, quancunque
              <lb/>
            in partem vrgeatur, etſi non aduerſetur illius grauitas, cùm mo-
              <lb/>
            tus non fit ſurſum, ſed ad latera: </s>
            <s xml:id="echoid-s1836" xml:space="preserve">ſic aqua magis reſiſtit quàm
              <lb/>
            aër, mel magis quàm aqua: </s>
            <s xml:id="echoid-s1837" xml:space="preserve">Igitur & </s>
            <s xml:id="echoid-s1838" xml:space="preserve">aër craſſior magis reſiſtit,
              <lb/>
            quàm rarus. </s>
            <s xml:id="echoid-s1839" xml:space="preserve">Sicutitaque, cùm in vtrem aut veſicam ingeritur
              <lb/>
            aër, reſiſteret mel aut aqua, ne veſicæ latera adeò diſtenderen-
              <lb/>
            tur, ac propterea incluſus aër aliquam pateretur </s>
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