Schott, Gaspar, Mechanica hydraulico-pneumatica. Pars I. Mechanicae Hydraulico-pnevmaticae Theoriam continet. , 1657
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              locus exinanitus repleatur:
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              iniectus enim ignis,
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              ſubjungit Hero,
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              corrumpit & extenuat aërem, qui in ipſis continetur,
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              ideoque relin­
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              quitur in ipſis vacuum;
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              cùm verò cucurbitula reſpiraverit; aër in e­
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              vacuatum locum ſuccedit, materiânon ampliùs attractâ,
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                <expan abbr="deciditq́ue">deciditque</expan>
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              cucurbitula.
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              Cucurbitu­
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              la cur car­
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              nem attra­
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              hant.
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              Sphæra con­
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              cava, & aë­
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              re plena, cur
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              plùs aeris
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              per inflatio­
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              nem recipi­
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              at
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              Heronem.
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              <s>Quartò,
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              conſtruatur Sphæra craſſitudinem habens laminæ, vt nè
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              facilè rumpatur, continensque circiter cotylas octo, & vndique præclu­
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              ſa;
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              & per foramen in ipſa factum immittamus
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              Siphonem æreum,
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              hoc eſt, tubum gracilem, non contingentem locum, qui puncto perfora­
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              to ſecundùm diametrum opponitur, ita vt aqua fluere poſſit; alia autem
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              ipſius pars extra ſphæram emineat circiter digitos tres, ipſi〈qué〉 diligenter
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              adferruminetur, ambitu foraminis circa tubum ſtanno præcluſo, vt cùm
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              volumus ore per ſiphonem inflare, ſpiritus ex ſphærâ nullo modo excidat.
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              <s>His factis,,
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              inſpiciamus quæ contingunt. </s>
              <s>Aëre enim in ipſa exiſtente
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              (quemadmodum & in aliis vaſis quæ vacua appellantur)
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              totum­
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              que qui in ipsa locum replente, & per continuationem quandam ad eius
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              ambitum applicato, nullo denique loco, ut arbitrantur, penitus exiſten­
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              te vacuo; neque aquam immittere poſſemus, neque alium aërem, non
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              excedente priori aëre qui in ipsa erat; & ſi multa vi immiſſionem facia­
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              mus, priùs diſrumpetur vas, quàm aliquid ſuſcipiat, cùm plenum ſit: ne­
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              que enim aëris corpora in minorem magnitudinem contrahi poſſunt:
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              quare neceſſe erit, vt in ſeipſis habeant quædam intervalla, in quæ com­
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              preſſa minorem obtineant molem; hoc autem veriſimile non eſt, nullo
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              penitus exiſtente vacuo: & cùm corpora ad ſeſe applicentur ſecundùm
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              omnes ſuperficies, & ſimiliter ad vaſis ambitum, non poſſunt expulſa lo­
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              cum alicui facere, non exiſtente vacuo aliquo, quamobrem nullo modo
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              in ſphæram immittetur aliquid eorum, quæ ſunt extra, niſi excedat ali­
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              qua pars aëris priùs in ea contenti, ſiquidem totus locus conſtipatus est,
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              & continuatus, vt arbitrantur. </s>
              <s>At
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              experientiâ conſtat contrari­
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              um: nam
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              ſi quis ſiphonem ori admovens ſphæraminflet, multum im­
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              mittit ſpiritum, non excedente aëre, qui in ea eſt. </s>
              <s>Quod cùm ita ſem­
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              per contingat; manifeſtò oſtenditur,
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              fieri
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              in ſphæra
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              exiſtentium in vacua implicata: contractio autem præter naturam fit,
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              ob immiſſionis violentiam. </s>
              <s>Si igitur aliquis inflans, & ad ipſum os ma­
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              num apponens, ſtatim digito ſiphonem obturet; manebit omni tempore
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