Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber
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            circa fibulam {ευ} manentem, ad regulas vero ς moventur circa fibulas β γ.
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            <s xml:id="echoid-s900" xml:space="preserve">At ſimul cum tubo X O D F perforatur alius tubus rectus ε ζ in bifidum
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            ſciſſus ad ζ: </s>
            <s xml:id="echoid-s901" xml:space="preserve">& </s>
            <s xml:id="echoid-s902" xml:space="preserve">habens ſmeriſmatia, per quæ humidum exprimit, qualia
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            & </s>
            <s xml:id="echoid-s903" xml:space="preserve">ante dicta ſunt in vaſe potui aquam exhibente, per aërem in ipſo com-
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            preſſum, ſi igitur dicti modioli una cum aliis, quæ conſtructa ſunt, in vas
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            aquæ θ χ λ μ injiciantur: </s>
            <s xml:id="echoid-s904" xml:space="preserve">& </s>
            <s xml:id="echoid-s905" xml:space="preserve">aptetur regula Z α, ex ejus partibus extremis
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            circa fibulam {ευ} viciſſim motis, emboli deſcendentes per tubum ε ζ, & </s>
            <s xml:id="echoid-s906" xml:space="preserve">per
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            oſculum verſatile χ humidum exprimunt: </s>
            <s xml:id="echoid-s907" xml:space="preserve">embolus enim K L aſcendens
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            aperit quidem foramen S elevato Q Ψ axe, occludit vero aſſarium P,
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            & </s>
            <s xml:id="echoid-s908" xml:space="preserve">deſcendens occludit S foramen, & </s>
            <s xml:id="echoid-s909" xml:space="preserve">ipſum P aperit, per quod aqua eliſa
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            exprimitur. </s>
            <s xml:id="echoid-s910" xml:space="preserve">Eadem contingunt & </s>
            <s xml:id="echoid-s911" xml:space="preserve">circa embolum M N: </s>
            <s xml:id="echoid-s912" xml:space="preserve">tubulus igitur χ
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            abnuens, & </s>
            <s xml:id="echoid-s913" xml:space="preserve">annuens ad datam altitudinem aquam expuit, non tamen ad
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            datam converſionem, niſi & </s>
            <s xml:id="echoid-s914" xml:space="preserve">totum inſtrumentum convertatur. </s>
            <s xml:id="echoid-s915" xml:space="preserve">Hoc au-
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            tem & </s>
            <s xml:id="echoid-s916" xml:space="preserve">tardum eſt & </s>
            <s xml:id="echoid-s917" xml:space="preserve">moleſtum ad urgentes neceſſitates: </s>
            <s xml:id="echoid-s918" xml:space="preserve">ſed ut facile ad
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            datum locum humor expuatur, faciemus tubum E ζ ſecundum longitudi-
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            nem ex duobus inter ſe coaptatis conſtantem, quorum unus tubo X O D F
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            conjunctus ſit, alter autem bifido, quod eſt ad ζ: </s>
            <s xml:id="echoid-s919" xml:space="preserve">etenim converſo ſupe-
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            riori tubo, & </s>
            <s xml:id="echoid-s920" xml:space="preserve">annuente tubulo χ, expreſſio fit ad quemcumque volueri-
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            mus locum: </s>
            <s xml:id="echoid-s921" xml:space="preserve">& </s>
            <s xml:id="echoid-s922" xml:space="preserve">habebit deſuper coaptatus tubus colymatia, ne ob aquæ
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            violentiam ex inſtrumento excidere cogatur: </s>
            <s xml:id="echoid-s923" xml:space="preserve">hæc autem erunt ad ſimili-
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            tudinem litteræ Γ ipſi conglutinata, & </s>
            <s xml:id="echoid-s924" xml:space="preserve">converſa circa annulum inferiori
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            tubo circumpoſitum.</s>
            <s xml:id="echoid-s925" xml:space="preserve"/>
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