Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber

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            <s xml:id="echoid-s139" xml:space="preserve">
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            ſurſum habente aqua ingrediatur; </s>
            <s xml:id="echoid-s140" xml:space="preserve">aër quidem ex vaſe exce-
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            dit; </s>
            <s xml:id="echoid-s141" xml:space="preserve">ſuperatus autem à multa aqua rurſus admiſcetur, & </s>
            <s xml:id="echoid-s142" xml:space="preserve">
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            complicatur, ita ut aqua fiat, eodem modo aëre in cucur-
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            bitula corrupto, attenuatoque ab igne, & </s>
            <s xml:id="echoid-s143" xml:space="preserve">elapſo per vaſis
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            raritates exinanitus intra locus attrahit circumpoſitam ma-
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            teriam qualiſcunque ſit, cum vero cucurbitula reſpirave-
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            rit, aër in evacuatum locum ſuccedit materia non amplius
              <lb/>
            attracta, dicentes igitur univerſe nihil omnino vacuum
              <lb/>
            eſſe, poſſunt ad hæc multa excogitare argumenta, & </s>
            <s xml:id="echoid-s144" xml:space="preserve">for-
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            taſſe oratione magis perſuadere, cum tamen nullam ſenſi-
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            bilem demonſtrationem afferant. </s>
            <s xml:id="echoid-s145" xml:space="preserve">At vero ſi oſtenſum fuerit
              <lb/>
            in his quæ apparent, & </s>
            <s xml:id="echoid-s146" xml:space="preserve">ſub ſenſum cadunt, vacuum quidem
              <lb/>
            coacervatum eſſe præter naturam factum, natura autem va-
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            cuum eſſe ſecundum parvas partes diſſeminatum: </s>
            <s xml:id="echoid-s147" xml:space="preserve">& </s>
            <s xml:id="echoid-s148" xml:space="preserve">corpora
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            ipſa per compreſſionem diſſeminata vacua replere: </s>
            <s xml:id="echoid-s149" xml:space="preserve">nullo
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            modo amplius audiendi erunt, qui probabiles de his afferunt
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            rationes. </s>
            <s xml:id="echoid-s150" xml:space="preserve">Conſtruatur enim ſphæra craſſitudinem habens la-
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            minæ, ut ne facile rumpatur, continens que circiter cotylas
              <lb/>
            octo, & </s>
            <s xml:id="echoid-s151" xml:space="preserve">undique præcluſa: </s>
            <s xml:id="echoid-s152" xml:space="preserve">oportet igitur ipſam perforare,
              <lb/>
            & </s>
            <s xml:id="echoid-s153" xml:space="preserve">ſiphonem æreum, hoc eſt tubum gracilem demittere non
              <lb/>
            contingentem locum, qui puncto perforato ſecundum dia-
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            metrum opponitur, ita ut aqua fluere poſſit; </s>
            <s xml:id="echoid-s154" xml:space="preserve">alia autem
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            ipſis pars extra ſphæram emineat circiter digitos tres, & </s>
            <s xml:id="echoid-s155" xml:space="preserve">am-
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            bitum foraminis, per quod ſiphon demittitur, ſtanno præ-
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            cludere oportet, tum ſiphonem, tum extrinſecam ſphæræ
              <lb/>
            ſuperficiem comprehendentes, ut cum volumus ore per ſi-
              <lb/>
            phonem inflare, ſpiritus ex ſphera nullo modo excidat. </s>
            <s xml:id="echoid-s156" xml:space="preserve">Ita-
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            que inſpiciamus quæ contingunt: </s>
            <s xml:id="echoid-s157" xml:space="preserve">aëre enim in ipſa exi-
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            ſtente, quemadmodum & </s>
            <s xml:id="echoid-s158" xml:space="preserve">in aliis vaſis quæ vacua appellan-
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            tur, totumque qui in ipſa locum replente: </s>
            <s xml:id="echoid-s159" xml:space="preserve">& </s>
            <s xml:id="echoid-s160" xml:space="preserve">per conti-
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            nuationem quandam ad ejus ambitum applicato: </s>
            <s xml:id="echoid-s161" xml:space="preserve">nullo de-
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            nique loco ut arbitrantur penitus exiſtente vacuo, neque
              <lb/>
            aquam immittere poſſemus, neque alium aërem non exce-
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            dente priori aëre qui in ipſa erat: </s>
            <s xml:id="echoid-s162" xml:space="preserve">& </s>
            <s xml:id="echoid-s163" xml:space="preserve">ſi multa vi </s>
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