Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber

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        <div xml:id="echoid-div136" type="section" level="1" n="86">
          <pb o="102" file="0108" n="108" rhead="JO. BAPT. ALEOTTI"/>
          <p>
            <s xml:id="echoid-s1973" xml:space="preserve">Repræſentare Herculem clava aggredientem Draconem
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            poma aurea cuſtodientem, ita ut Hercule clavam elevante
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            Draco ſibilet, dumque eam in ejus caput impingit, aquam
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            in faciem ejus ejaculetur.</s>
            <s xml:id="echoid-s1974" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div137" type="section" level="1" n="87">
          <head xml:id="echoid-head101" xml:space="preserve">
            <emph style="sc">Theorema</emph>
          I.</head>
          <p>
            <s xml:id="echoid-s1975" xml:space="preserve">S It baſis A B C D, cujus una pars C D E F G H K ſit arctiffi-
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            me clauſa: </s>
            <s xml:id="echoid-s1976" xml:space="preserve">ita ut aër inde exire nequeat. </s>
            <s xml:id="echoid-s1977" xml:space="preserve">Supra hanc & </s>
            <s xml:id="echoid-s1978" xml:space="preserve">ſubter
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            canalem S ponatur infundibulum T, cujus cauda ſub finem
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            coarctata, ut demonſtrat pars ejus notata V, in tantum diſtet
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            ſupra fundum baſis G H K, quantum ad fluxum aquæ videbitur ſufficere:
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            </s>
            <s xml:id="echoid-s1979" xml:space="preserve">cujus fundo ſint applumbati duo inflexi ſiphones X & </s>
            <s xml:id="echoid-s1980" xml:space="preserve">Y; </s>
            <s xml:id="echoid-s1981" xml:space="preserve">ſed Y fit multo
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            ſubtilior ſiphone X, hinc in P ſtatuatur Hercules, in N poma aurea & </s>
            <s xml:id="echoid-s1982" xml:space="preserve">
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            ſub eis in L Draco. </s>
            <s xml:id="echoid-s1983" xml:space="preserve">Hoc facto in latere baſis E F G H adaptetur tubus
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            M, qui in O flectatur & </s>
            <s xml:id="echoid-s1984" xml:space="preserve">pertingat in os Draconis ita comparatum, ut edat
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            ſibilum, dum aër (ab aqua canalis S, quæ per infundibulum in baſin intrat)
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            pulſus conabitur (cum alium exitum non inveniat) exire periſtum tubum: </s>
            <s xml:id="echoid-s1985" xml:space="preserve">
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            & </s>
            <s xml:id="echoid-s1986" xml:space="preserve">ſit quoque ita adaptatum, ut dum per ſiphonem Y evacuatur baſis,
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            neque poteſt aliunde, quam per oſculum dicti tubi admittere aërem,
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            etiam ex eo majorem ſibilum edat; </s>
            <s xml:id="echoid-s1987" xml:space="preserve">quod nemini puto conſtructu difficile
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            eſſe. </s>
            <s xml:id="echoid-s1988" xml:space="preserve">Poſtea à clavo O O ſuſtentetur regula D D C C ſub cujus una
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            extremitate C C adaptetur conus cavus R R qui interius contineat cir-
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            culos perfectos, lineasque rectiſſimas, accuratiſſimè torno elaboratus. </s>
            <s xml:id="echoid-s1989" xml:space="preserve">
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            Intraque illum adaptetur conus ſolidus B B, qui illi exactè ab omni parte
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            inſiſtat: </s>
            <s xml:id="echoid-s1990" xml:space="preserve">hic in parte ſuperiore habeat annulum, cui alligatus funis ſuſpen-
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            datur in C C, regula D D C C ſtante in perfecto diano. </s>
            <s xml:id="echoid-s1991" xml:space="preserve">Et ſub D D
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            appendatur vas Z, quod cavum multo levius ſit cono B B: </s>
            <s xml:id="echoid-s1992" xml:space="preserve">hic vero & </s>
            <s xml:id="echoid-s1993" xml:space="preserve">
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            regula & </s>
            <s xml:id="echoid-s1994" xml:space="preserve">conus ita ſint diſpoſiti, ut vas Z ſit ſub crure exteriore inflexi ſi-
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            phonis X, & </s>
            <s xml:id="echoid-s1995" xml:space="preserve">ad anſam ejus alligetur funis, qui tranſeat per crus Hercu-
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            lis dextrum, perque corpus ejus attingat brachia, quæ clave quadam
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            figura literæ T in æquilibrio ſuſtententur: </s>
            <s xml:id="echoid-s1996" xml:space="preserve">exemplar eſt T
              <unsure/>
            . </s>
            <s xml:id="echoid-s1997" xml:space="preserve">3. </s>
            <s xml:id="echoid-s1998" xml:space="preserve">eſt humerus
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            dexter, 2. </s>
            <s xml:id="echoid-s1999" xml:space="preserve">eſt humerus ſiniſter, & </s>
            <s xml:id="echoid-s2000" xml:space="preserve">4. </s>
            <s xml:id="echoid-s2001" xml:space="preserve">eſt ſcytala, dum itaque 2. </s>
            <s xml:id="echoid-s2002" xml:space="preserve">3. </s>
            <s xml:id="echoid-s2003" xml:space="preserve">ſtant
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            in æquilibrio, alligetur funis in 4 extremitate ſcytalæ. </s>
            <s xml:id="echoid-s2004" xml:space="preserve">Poſtea manibus
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            Herculis inſeratur clava Q. </s>
            <s xml:id="echoid-s2005" xml:space="preserve">Deinde ſupponatur cruri inflexi ſiphonis Y
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            vas A A, & </s>
            <s xml:id="echoid-s2006" xml:space="preserve">hic tubus ſit operculo dicti vaſis optime applumbatus, & </s>
            <s xml:id="echoid-s2007" xml:space="preserve">
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            operculum ipſum vaſi: </s>
            <s xml:id="echoid-s2008" xml:space="preserve">ex quo egrediatur tubulus T T R qui caput ſuum
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            inſeratin cavum conum R R, iſque cum iſto ſit perforatus, & </s>
            <s xml:id="echoid-s2009" xml:space="preserve">habeat </s>
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