Casati, Paolo, De igne dissertationes physicae, 1686

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            <s xml:id="echoid-s1454" xml:space="preserve">
              <pb o="42" file="0054" n="54" rhead="Diſſertatio Tertia."/>
            ſit? </s>
            <s xml:id="echoid-s1455" xml:space="preserve">necne? </s>
            <s xml:id="echoid-s1456" xml:space="preserve">Statim reſpondebo, ad retinendam auiculam nimium
              <lb/>
            eſſe; </s>
            <s xml:id="echoid-s1457" xml:space="preserve">ad firmandam nauim anchorâ, inualidum eſſe & </s>
            <s xml:id="echoid-s1458" xml:space="preserve">exilem; </s>
            <s xml:id="echoid-s1459" xml:space="preserve">ſi
              <lb/>
            ſolitariè conſideretur, & </s>
            <s xml:id="echoid-s1460" xml:space="preserve">ſimpliciter, quin ad aliquid vinciendum
              <lb/>
            referatur, neque validum eſſe, neque inualidum: </s>
            <s xml:id="echoid-s1461" xml:space="preserve">ſicut enim
              <lb/>
            validum aut inualidum comparatè dicitur, quatenus ad aliud
              <lb/>
            refertur, ita pariter graue aut leue non dicitur niſi habitâ ratio-
              <lb/>
            ne ordinis corporum in hoc Orbe iuxta cuiuſque naturam diſpo-
              <lb/>
            ſitorum. </s>
            <s xml:id="echoid-s1462" xml:space="preserve">Nam quod vnicuique corpori grauitas tribuatur, vt
              <lb/>
            omnia deorſum connitentia preſsè cohæreant, neque relictis ina-
              <lb/>
            nitatibus difiungantur; </s>
            <s xml:id="echoid-s1463" xml:space="preserve">prorſus inutile mihi videtur, & </s>
            <s xml:id="echoid-s1464" xml:space="preserve">ſine cau-
              <lb/>
            sâ confictum: </s>
            <s xml:id="echoid-s1465" xml:space="preserve">obidipſum, videlicet, quia Naturæ author Deus
              <lb/>
            Firmamento concluſit inferiora omnia nihil inane relinquens, & </s>
            <s xml:id="echoid-s1466" xml:space="preserve">
              <lb/>
            ita corpora ſibi inuicem ſuâ mole obſiſtunt, vt à duobus ſpatium
              <lb/>
            idem occupari nequeat, tam preſsè cohærent omnia, vt nullâ vir-
              <lb/>
            tute naturali fieri poſſit, quin cohæreant; </s>
            <s xml:id="echoid-s1467" xml:space="preserve">adeoque nullo conatu
              <lb/>
            indigent, ne diſiungantur, quaſi, niſi inferiora à ſuperioribus
              <lb/>
            vrgerentur, relinquendus eſſet hiatus. </s>
            <s xml:id="echoid-s1468" xml:space="preserve">Quinimmo tam longè
              <lb/>
            abſunt corpora ab iſto preſſu, nequa inanitas interijciatur, vt
              <lb/>
            potiùs ſibi viciſſim manum inijciant, ſeque inuicem retineant,
              <lb/>
            non vrgeant, aut premant. </s>
            <s xml:id="echoid-s1469" xml:space="preserve">Quare quid ſit aërem Mercurio ſu-
              <lb/>
            biecti vaſis inſidentem grauitare, & </s>
            <s xml:id="echoid-s1470" xml:space="preserve">vrgere, fateor, adeò hebes
              <lb/>
            ſum, vt non intelligam: </s>
            <s xml:id="echoid-s1471" xml:space="preserve">quid enim conetur aër infra Mercurium
              <lb/>
            deſcendere, infra quem ſi eſſet, vt Naturæ ordo redintegraretur,
              <lb/>
            oporteret ſurſum conniti.</s>
            <s xml:id="echoid-s1472" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1473" xml:space="preserve">Dand. </s>
            <s xml:id="echoid-s1474" xml:space="preserve">At aër iſte telluri circumfuſus, halitibus aqueis, ter-
              <lb/>
            reniſque puluiſculis plenus, grauis eſt; </s>
            <s xml:id="echoid-s1475" xml:space="preserve">ſpiritus verò, quem mon-
              <lb/>
            tium incolæ ducunt, defęcatus eſt, & </s>
            <s xml:id="echoid-s1476" xml:space="preserve">leuis.</s>
            <s xml:id="echoid-s1477" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1478" xml:space="preserve">Maur. </s>
            <s xml:id="echoid-s1479" xml:space="preserve">Si ſingulæ iſtius aëris partes abſolutè accipiantur, & </s>
            <s xml:id="echoid-s1480" xml:space="preserve">
              <lb/>
            in loco ſuo, nulla facultatem habet indè ſponte ſuâ diſcedendi;
              <lb/>
            </s>
            <s xml:id="echoid-s1481" xml:space="preserve">ac proinde grauis non eſt aër, qui naturalis quietis ſedem nactus
              <lb/>
            non poteſt deſcendere, neque leuis, qui nequit aſcendere; </s>
            <s xml:id="echoid-s1482" xml:space="preserve">nam
              <lb/>
            parium comparatio nec elationem habet, nec ſubmiſſionem. </s>
            <s xml:id="echoid-s1483" xml:space="preserve">Quod
              <lb/>
            ſi comparatè ſumantur & </s>
            <s xml:id="echoid-s1484" xml:space="preserve">præpoſterè inter ſe diſpoſiti halitus, aut
              <lb/>
            in alieno loco intermedio collocati, tunc alter grauis eſt, alter
              <lb/>
            leuis. </s>
            <s xml:id="echoid-s1485" xml:space="preserve">Sed in experimento, de quo ſermo eſt, ordine poſitas
              <lb/>
            atmoſphæræ partes, non verò perturbatas intelligimus, videli-
              <lb/>
            cet craſſas inferiores, tenues autem ſuperiores; </s>
            <s xml:id="echoid-s1486" xml:space="preserve">adeòque non ab
              <lb/>
            his illæ vrgentur, aut premuntur. </s>
            <s xml:id="echoid-s1487" xml:space="preserve">Verùm ſi aërius </s>
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