Casati, Paolo, De igne dissertationes physicae, 1686
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            xapodarum 350 ſit vt 1, manifeſtum eſt inferiores cylindri aërij
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            partes grauiores eſſe, ſuperiores verò minùs graues: </s>
            <s xml:id="echoid-s1630" xml:space="preserve">Ergo dum
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            inferiores vrgent ſubiectum in vaſe Mercurium, minùs vrgentur à
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            ſuperioribus, atque adeò non comprimuntur. </s>
            <s xml:id="echoid-s1631" xml:space="preserve">Si enim eſſent in
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            ſerie aliquâ proximè diſpoſiti plures homines, & </s>
            <s xml:id="echoid-s1632" xml:space="preserve">primus certo co-
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            natu vrgeret obuiam arborem, quam aliquantulum flecteret, eo-
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            demque temporis momento ſecundus adhiberet minorem cona-
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            tum quàm primus, tertius adhuc minorem, atque ita deinceps,
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            non intelligo, quî fieri poſſit, vt prior à ſequentibus prematur,
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            qui languidiùs vi ſuâ mouentur, cùm potiùs à priore trahi conſe-
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            quentes oporteat, ne inuicem diſiungantur: </s>
            <s xml:id="echoid-s1633" xml:space="preserve">id quod profectò
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            contingere deberet in partibus cylindri aërij, nam ab inferioribus
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            ſuperiores trahi neceſſe eſſet, ne inanitates relinquerentur interie-
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            ctæ inter grauiores & </s>
            <s xml:id="echoid-s1634" xml:space="preserve">minùs graues, niſi pari paſſu deſcenderent;
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            </s>
            <s xml:id="echoid-s1635" xml:space="preserve">æquè velociter autem moueri nequeunt, quarum diſpar eſt vis ſe
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            mouendi, nimirum grauitas. </s>
            <s xml:id="echoid-s1636" xml:space="preserve">Quod ſi ſuperiores aëris partes vim
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            habent vrgendi inferiores, id quoque Mercurij partibus eſt conce-
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            dendum: </s>
            <s xml:id="echoid-s1637" xml:space="preserve">quia verò in Mercurium fiſtulæ proximè vim ſuam exer-
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            cent partes Mercurij in vaſe, quæ adhærent oſculo fiſtulæ, quo
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            altiùs fiſtula immergitur ſubiecto Mercurio, etiam ab altiore Mer-
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            curij cylindro partes illæ inferiores vrgentur, ideoque plus ha-
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            bent virium ad repugnandum Mercurio fiſtule: </s>
            <s xml:id="echoid-s1638" xml:space="preserve">at non habent, ne-
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            que enim pro variâ oſculi immerſione alia eſt atque alia Mercurij
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            altitudo, vt excedat digitos 30; </s>
            <s xml:id="echoid-s1639" xml:space="preserve">Non igitur inferiores Mercurij
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            partes vrgentur à ſuperioribus; </s>
            <s xml:id="echoid-s1640" xml:space="preserve">ergo neque hic preſſus contingit
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            aëris partibus. </s>
            <s xml:id="echoid-s1641" xml:space="preserve">Deinde cum cylindrum aërium omni ex parte
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            complectatur aër ſimilis ſecundùm ſpeciem grauitatis, cur ille co-
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            netur deſcendere? </s>
            <s xml:id="echoid-s1642" xml:space="preserve">Vas ſume in imo fundo habens rotundum fo-
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            ramen, totumque demerge in aquam maioris alterius vaſis: </s>
            <s xml:id="echoid-s1643" xml:space="preserve">tum
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            intrà aquam manum foramini illi ſubijciens nihil planè ponderis
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            deprehendes, quamuis tuæ manui immineat aqueus cylindrus; </s>
            <s xml:id="echoid-s1644" xml:space="preserve">quia
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            ſcilicet ſupra ſubiectam aquam, & </s>
            <s xml:id="echoid-s1645" xml:space="preserve">intrà aquam, aqua non grauitat. </s>
            <s xml:id="echoid-s1646" xml:space="preserve">
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            Quod ſi vas illud aquâ plenum in aëre ſuſtentetur à ſubiectâ ma-
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            nu, iam vniuerſa aqua vaſis ſupra aërem, & </s>
            <s xml:id="echoid-s1647" xml:space="preserve">in aëre, conſtituta,
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            nempe in loco alieno, vrget fundum, & </s>
            <s xml:id="echoid-s1648" xml:space="preserve">manus foramini obie-
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            cta vicem ſubit partis fundi, atque incumbentis cylindri aquei
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            pondus ſentit. </s>
            <s xml:id="echoid-s1649" xml:space="preserve">Igitur quemadmodum aqua intrà aquam non gra-
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            uitat ſupra aquam, ita quoquè aër intrà aërem non grauitat </s>
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