Fabri, Honoré, Dialogi physici in quibus de motu terrae disputatur, 1665
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              Chryſoc.
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              <s id="s.000565"> Memini me legiſſe vel audiiſſe præclariſſimam huius Phæno­
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              neni rationem, nempe illa portio aëtis, aqua levior, vt in aſcenſu aquæ vim
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              & reſiſtentiam faciliùs frangat & ſuperet, huiuſmodi quaſi cuneatam figu­
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              ram induit. </s>
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              <s id="s.000566">
                <emph type="italics"/>
              Antim.
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              <s id="s.000567"> An fortè pro demonſtratione hoc venditares? </s>
              <s id="s.000568">Sed vnde, quæſo,
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              & qua vi, ſeu virtute aër in hanc formam ſeſe faſtigiat? </s>
              <s id="s.000569">Certè ſi ad per­
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              rumpendum ſurſum faciliùs, mucronem illum nimis obtuſum, ſphæricum
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              ſcilicet, in acutiorem conicum attenuare & acuere debuerat, cunei enim
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              eò validiores ſunt, quò acutiores. </s>
              <s id="s.000570">Deinde æquè facilè aqua ſuperficiem
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              ſphæricam aëris dividere poteſt ac planam: præterea cur minor aëris portio
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              aquæ reſiſtentiam citiùs perrumpit, & ſurſum emergit? </s>
              <s id="s.000571">Nempe vt corpus
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              grave majus gravitatem ſuam potentiùs exerit, ita & leve majus ſuam le­
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              vitatem; ſed cur aqua ſimiliter cuneum cuneo minimè opponit? </s>
              <s id="s.000572">an fortè
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              in ratione gravis corporis aëri cedit, quatenus hic corpus leve eſt? </s>
              <s id="s.000573">itaque
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              alia omnino rationem; cùm enim aqua tendat vt: sùs latera tubi, per quæ
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              deinde ſuas ſp
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              agens, vt dixi, deſcendit, eo certè ex medio tubo,
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              ſenſim ruere non poreſt, niſi quoquo versùm cylindri aeris ſuperiorem
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              marginem quaſi excutiat, & quaſi ſeſe in novam cunei formam induat, eſt
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              enim cuneus latior in ſummo, in imo acutior; neque in hoc vlla eſt difficul­
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              tas; multa ſanè eaque ſcitu digna ſuper hoc experimento mihi dicenda eſ­
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              ſent, ſed omitto, ne in parergis toti ſimus; inferior verò portio, ſeu baſis
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              plana eſt; quia nullum aquæ pondu illam emarginat. </s>
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              <s id="s.000574">
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              Auguſtin.
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              <s id="s.000575"> Sed quid ſi oleum aquæ loco adhibeas; aut certè non
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              aëris, ſed olei portionem tubo includas, aut demum oleum ſimul &
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              aëra? </s>
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            <p type="main">
              <s id="s.000576">
                <emph type="italics"/>
              Antim.
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              <s id="s.000577"> Si oleum loco aquæ, idem fiet; quanquam paulò lentiùs aëris
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              portio ſurſum evadet; ſi verò aëris loco, eodem modo, & ſub eadem
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              forma, ſed multò lentius; quia ſcilicet oleum eſt longè gravius aëre: ſi
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              demum ſimul vtrumque, aër oleum longè poſt ſe relinquet; ſi tamen dum
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              olei patricula mediam tubi altitudinem decurrit, poſtquam aër iam emer­
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              ſit tubum inverta;, aër certè oleum facilè aſſequitur, nec non per medium
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              oleum perrumpit, ſervata eadem figura; quanquam tunc oleum ſeſe non pa­
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              rum dilatat, vt ſurſum aëra extrudat; aut ſaltem vt eidem, vtpote leviori,
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              tranſitum cedat. </s>
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            <p type="main">
              <s id="s.000578">
                <emph type="italics"/>
              Chryſoc.
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              <s id="s.000579"> Aliquando accidit in eo conflictu, vt aëris bullula ſupremæ
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              olei ſuperficiei adhæſerit & quaſi captiva remanſerit; tunc verò, vt
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              fidelis obſervator refert, paulo citiùs oleum emerſit, aër enim addidit
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              alas. </s>
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              <s id="s.000580">
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              Antim.
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              <s id="s.000581"> Oleum, vt probè tenetis, ſua vligine particulam aëris intra
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              buliam continere potuit, nempe bullæ ex materia vliginoſa tornantur;
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              quod autem totum illud corpus ex aëre & oleo conſtans, paulò faciliùs ab
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              aqua ſurſum extrudatur, vel à levitate viribus auctis feratur, mirum eſſe
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              non debet: de levitate hoc loco non diſputo, aio tamen, ex hoc experi­
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              mento, minime probari, immo potiùs, vt patet, ex iis, quæ dicta ſunt,
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              impugnari. </s>
              <s id="s.000582">Sed ad alia principia ex doctrina motuum accerſenda pergen-</s>
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