Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber

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              <pb o="5" file="0011" n="11" rhead="SPIRITAL. LIBER."/>
            attenuati: </s>
            <s xml:id="echoid-s121" xml:space="preserve">ſemperque eum qui deinceps eſt aërem mo-
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            ventis, aëris autem motio non ſecundum omnem locum
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            aquæ velox eſt, ſed vehementior quidem juxta exhalatio-
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            nem, imbecillior vero cum longe abeſt ab eo loco, in quo
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            movetur, quemadmodum & </s>
            <s xml:id="echoid-s122" xml:space="preserve">in gravibus, quæ ſurſum fe-
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            runtur contingit, etenim hæc velocius moventur juxta lo-
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            cum inferiori propinquum, in quo eſt etiam vis impellens;
              <lb/>
            </s>
            <s xml:id="echoid-s123" xml:space="preserve">tardius vero in ſuperiori loco, vi, quæ ea impulit non ita
              <lb/>
            valide amplius proſequente, rurſus in naturalem locum
              <lb/>
            feruntur, videlicet in inferiorem, nam ſi aquæ velox vis
              <lb/>
            ipſa impuliſſet, profecto nunquam ceſſaſſet, nunc vero ea
              <lb/>
            ſenſim ceſſante, & </s>
            <s xml:id="echoid-s124" xml:space="preserve">tanquam conſumpta, velocitas quoque
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            ceſſat lationis, aqua etiam mutatur in terrenam ſubſtantiam; </s>
            <s xml:id="echoid-s125" xml:space="preserve">
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            quando enim in aliquem terrenum, & </s>
            <s xml:id="echoid-s126" xml:space="preserve">concavum locum
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            aquam infundimus, paulo poſt aqua à terrena ſubſtantia
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            imbibita evaneſcit, quare commiſcetur, & </s>
            <s xml:id="echoid-s127" xml:space="preserve">ipſa fit terra,
              <lb/>
            at ſi quis dicat ipſam ſubigi, neque imbibi à terra, ſed eva-
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            porare, exiccarique à ſolis vel alterius cujuſpiam calidita-
              <lb/>
            te, falſa didicere deprehendetur. </s>
            <s xml:id="echoid-s128" xml:space="preserve">Eadem enim aqua injecta
              <lb/>
            in aliquod vas ſive vitreum ſive æreum, ſive ex alia denſa
              <lb/>
            materia conſtans ſolique expoſita per multum tempus non
              <lb/>
            imminuitur, niſi in parva admodum ipſius particula, qua-
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            re & </s>
            <s xml:id="echoid-s129" xml:space="preserve">aqua in terrenam ſubſtantiam mutatur, limus enim & </s>
            <s xml:id="echoid-s130" xml:space="preserve">
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            coenum aquæ mutationes ſunt in terrenam ſubſtantiam: </s>
            <s xml:id="echoid-s131" xml:space="preserve">
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            mutatur etiam tenuior ſubſtantia in craſſiorem; </s>
            <s xml:id="echoid-s132" xml:space="preserve">quemad-
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            modum videmus, & </s>
            <s xml:id="echoid-s133" xml:space="preserve">flammam à lucernis extinctis cum
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            oleum deficiat, aliquantulum ſurſum ferri & </s>
            <s xml:id="echoid-s134" xml:space="preserve">veluti impul-
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            ſam in proprium locum ſecedere. </s>
            <s xml:id="echoid-s135" xml:space="preserve">Dico autem locum ſupre-
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            mum, & </s>
            <s xml:id="echoid-s136" xml:space="preserve">qui ſupra aërem eſt, ſuperatam vero à multo aëre
              <lb/>
            intermedio non amplius ferri in deſtinatum locum, ſed ad-
              <lb/>
            mixtam, complicatamque aëris corporibus in aërem verti,
              <lb/>
            ſimile quippiam & </s>
            <s xml:id="echoid-s137" xml:space="preserve">in aëre intelligere oportet, quando enim
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            is in aliquo vaſe non magno & </s>
            <s xml:id="echoid-s138" xml:space="preserve">præcluſo exiſtens ſimul cum
              <lb/>
            vaſe inaquam demittatur, deinde detecto vaſe, & </s>
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