Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber

Table of contents

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[61.] LIII.
[62.] LIV.
[63.] LV.
[64.] LVI.
[65.] LVII.
[66.] LVIII.
[67.] LIX.
[68.] LX.
[69.] LXI.
[70.] LXII.
[71.] LXIII.
[72.] LXIV.
[73.] LXV.
[74.] LXVI.
[75.] LXVII.
[76.] LXVIII.
[77.] LXIX.
[78.] LXX.
[79.] LXXI.
[80.] LXXII.
[81.] LXXIII.
[82.] LXXIV.
[83.] LXXV.
[84.] LXXVI.
[85.] FINIS.
[86.] QUATUOR THEOREMATA Adjuncta SPIRITALIBUS HERONIS, Per M. Joannem Baptistam Aleottum. Et Conſtructio modi, quo artificialiter repræſentatur ca-nalis aquæ vivæ aquam ejaculans uſque in verticem cujuscunque altæ turris, ſumma facilitate. Ex Italice in Latinum conutrſa.
[87.] Theorema I.
[88.] Theorema II.
[89.] Theorema III.
[90.] Theorema IV.
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          <head xml:id="echoid-head57" xml:space="preserve">XLIII.</head>
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            <s xml:id="echoid-s1273" xml:space="preserve">Ex diftantiis voces avicularum hoc modo efficiuntur.</s>
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            <image file="0066-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0066-01"/>
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            <s xml:id="echoid-s1275" xml:space="preserve">Sit vas præcluſum, per quod infundibulum tranſmittitur, cujus caulis
              <lb/>
            à fundo tantum diſtet, quantum ad aquæ fluxum ſatis ſit. </s>
            <s xml:id="echoid-s1276" xml:space="preserve">Superponitur au-
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            tem infundibulo vas concavum in cnodacibus verſatum, habensque in in-
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            feriori parte pondera, in quod aqua ſemper influit. </s>
            <s xml:id="echoid-s1277" xml:space="preserve">Contingit igitur
              <lb/>
            vacuo exiſtente vaſe, quod in cnodacibus verſatur, ipſum rectum per-
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            manere: </s>
            <s xml:id="echoid-s1278" xml:space="preserve">pondus enim habet in fundo appoſitum. </s>
            <s xml:id="echoid-s1279" xml:space="preserve">Atque eo repleto aqua
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            in vas præcluſum effundetur. </s>
            <s xml:id="echoid-s1280" xml:space="preserve">Et aër qui eſt in ipſo, per quandam fiſtu-
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            lam expulſus ſonum reddet. </s>
            <s xml:id="echoid-s1281" xml:space="preserve">Exinanitur autem vas per quendam ſiphonem
              <lb/>
            inflexum: </s>
            <s xml:id="echoid-s1282" xml:space="preserve">& </s>
            <s xml:id="echoid-s1283" xml:space="preserve">in quo tempore exinanitio fit, rurſus vas repletum invertitur.
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            <s xml:id="echoid-s1284" xml:space="preserve">Itaque oportebit influxionem haud in medium vaſis incidere, ut ipſum
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            repletum ſubito invertatur.</s>
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