Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber

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        <div xml:id="echoid-div93" type="section" level="1" n="60">
          <pb o="69" file="0075" n="75" rhead="SPIRITAL. LIBER."/>
        </div>
        <div xml:id="echoid-div95" type="section" level="1" n="61">
          <head xml:id="echoid-head67" xml:space="preserve">LIII.</head>
          <p>
            <s xml:id="echoid-s1398" xml:space="preserve">Eſt etiam alia conſtructio, in qua humidum ſenſim fer-
              <lb/>
            tur, & </s>
            <s xml:id="echoid-s1399" xml:space="preserve">manet, ita ut ſemper aſcendens videatur.</s>
            <s xml:id="echoid-s1400" xml:space="preserve"/>
          </p>
          <figure number="60">
            <image file="0075-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0075-01"/>
          </figure>
          <p>
            <s xml:id="echoid-s1401" xml:space="preserve">Sit baſis A B undique præ-
              <lb/>
            cluſa, quæ diaphragma habeat
              <lb/>
            C D: </s>
            <s xml:id="echoid-s1402" xml:space="preserve">& </s>
            <s xml:id="echoid-s1403" xml:space="preserve">vitreum operculum
              <lb/>
            cylindri forma EF ſimiliter
              <lb/>
            undique præcluſum. </s>
            <s xml:id="echoid-s1404" xml:space="preserve">In oper-
              <lb/>
            culo autem EF ſit tubus G H
              <lb/>
            ab ipſius tecto parum diſtans,
              <lb/>
            & </s>
            <s xml:id="echoid-s1405" xml:space="preserve">ſimul perforatus cum dia-
              <lb/>
            phragmate. </s>
            <s xml:id="echoid-s1406" xml:space="preserve">Alius etiam tubus
              <lb/>
            KL ſimul perforetur cum tecto
              <lb/>
            baſis: </s>
            <s xml:id="echoid-s1407" xml:space="preserve">& </s>
            <s xml:id="echoid-s1408" xml:space="preserve">à diaphragmate parum
              <lb/>
            diſtet. </s>
            <s xml:id="echoid-s1409" xml:space="preserve">Inſit autem baſi extra
              <lb/>
            vitreum operculum foramen
              <lb/>
            M, per quod vas A D implea-
              <lb/>
            tur. </s>
            <s xml:id="echoid-s1410" xml:space="preserve">Et baſis A B ad fundum
              <lb/>
            canalem habeat N. </s>
            <s xml:id="echoid-s1411" xml:space="preserve">Sit præter-
              <lb/>
            ea alius tubus X O ſimul per-
              <lb/>
            foratus cum diaphragmate;
              <lb/>
            </s>
            <s xml:id="echoid-s1412" xml:space="preserve">parumque à baſi diſtans, per
              <lb/>
            quod implebitur vas C B. </s>
            <s xml:id="echoid-s1413" xml:space="preserve">Ita-
              <lb/>
            que obſtructo canali N, aër,
              <lb/>
            qui eſt in C B per tubos. </s>
            <s xml:id="echoid-s1414" xml:space="preserve">& </s>
            <s xml:id="echoid-s1415" xml:space="preserve">per
              <lb/>
            foramen M excedet extra. </s>
            <s xml:id="echoid-s1416" xml:space="preserve">& </s>
            <s xml:id="echoid-s1417" xml:space="preserve">
              <lb/>
            cum vas C B repletum fuerit,
              <lb/>
            implebimus A D per foramen
              <lb/>
            M. </s>
            <s xml:id="echoid-s1418" xml:space="preserve">Aër enim, qui in ipſo eſt
              <lb/>
            per idem foramen excedit. </s>
            <s xml:id="echoid-s1419" xml:space="preserve">Si igitur canalem N fluere dimittamus, in
              <lb/>
            locum C B exinanitum aër ex vitreo operculo procedet per tubum G H. </s>
            <s xml:id="echoid-s1420" xml:space="preserve">
              <lb/>
            In locum autem vitrei exinanitum ex A D humidum aſcendet per tubum
              <lb/>
            KL, & </s>
            <s xml:id="echoid-s1421" xml:space="preserve">aër per foramen Mingredietur. </s>
            <s xml:id="echoid-s1422" xml:space="preserve">Atque hoc uſque eo fiet, quoad
              <lb/>
            vitr@eum operculum repletum fuerit. </s>
            <s xml:id="echoid-s1423" xml:space="preserve">Oportebit autem loca A D C B
              <lb/>
            E Finter ſe æqualia eſſe, ut ad invicem & </s>
            <s xml:id="echoid-s1424" xml:space="preserve">aër, & </s>
            <s xml:id="echoid-s1425" xml:space="preserve">humidum transferantur. </s>
            <s xml:id="echoid-s1426" xml:space="preserve">
              <lb/>
            Quando autem vas C B exinanitum fuerit, & </s>
            <s xml:id="echoid-s1427" xml:space="preserve">conſtiterit aëris continui-
              <lb/>
            tas, rurſus ex vitreo operculo, aqua in vas A D deferetur, aëre per
              <lb/>
            canalem N, & </s>
            <s xml:id="echoid-s1428" xml:space="preserve">per GH tubum in vitreum operculum ingrediente. </s>
            <s xml:id="echoid-s1429" xml:space="preserve">Qui
              <lb/>
            vero eſt in vaſe AD aër per foramen M excedet.</s>
            <s xml:id="echoid-s1430" xml:space="preserve"/>
          </p>
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