Fabri, Honoré, Dialogi physici in quibus de motu terrae disputatur, 1665

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              <s id="s.001447">
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              vera elevatio licèt aliquem aquarum motum dicat, non tamen ita acci­
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              pienda eſt, vt aqua à circulo maximæ preſſionis ad punctum maximæ ele­
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              vationis excurrat, totumque illud ſpatium conficiat, ſed vt pars aquæ aliam
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              partem pellat, & hæc aliam; cogita veſicam aqua plenam, quam vel ma­
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              nu, vel fune in ſpiras acto ſtringis, ac proinde temporis ferè momento tu­
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              mor attollitur, quod certè per motum obtineri non poſſet. </s>
              <s id="s.001448">Tertiò, per
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              motum aquam elevatam versùs litus excurrere, & averſis ire fluminibus,
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              ad inſtar majoris cujuſdam dolij; vbi enim litore altior eſt, in litus exun­
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              dat; idem dico de ſuprema fluminum ſuperficie: & hæc eſt ratio cur
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              aqua, per æſtum exundet, quia cum prædictæ preſſionis vi, etiam ver­
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              sùs oram & litus extollatur, in litus ipſum, quod inferius eſt, & in ſub­
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              jacentis fluminis alveum excurrit, ſublata verò preſſione, aqua illa,
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              quæ priùs exundarat in litus, cum ſit altius ipſa maris, poſtquam detu­
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              muit, ſuperficie, versùs ipſum mare refluit. </s>
              <s id="s.001449">Quartò, Majorem arcum
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              vtilem plùs, minorem verò minùs præſtare; præſertim cùm ſuo modo
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              accedat ratio vectis, ſicuti brevior baculus difficiliùs curvatur, quàm
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              longior; hinc major arcus minorem ſuperat, & major ſuperficies aquæ
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              ex præſatis arcubus conſtans vincit minorem ex arcubus etiam conſtan­
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              tem; ſunt autem hujuſmodi arcus paralleli circulo maximæ preſſionis;
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              & cum in ſingulis punctis circuli vtilis, æqualis preſſio cenſeatur, inæ­
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              qualitas preſſionis directæ accipienda eſt in arcubus ad angulos rectos
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              ſecantibus prædictos preſſionum arcus. </s>
              <s id="s.001450">Quintò, Suppono ad aquam extru­
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              dendam, per anguſtiorem alveum, ſeu canalem, minorem preſſionis vim de­
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              ſiderari, vt conſtat ex doctrina motuum; nempe major mobilis, ſeu moven­
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              di corporis moles motui magis reſiſtit. </s>
            </p>
            <p type="main">
              <s id="s.001451">
                <emph type="italics"/>
              Auguſtin.
                <emph.end type="italics"/>
              </s>
              <s id="s.001452"> Cuncta hæc ſatis intelligo; ſtatuo enim globum iſtum in
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              ſitu Sphæræ rectæ; ita vt axis & poli ſint in plano horizontis; aſſum­
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              ptoque ſupremo globi puncto, ſeu vertice, illius horizon, qui per Po­
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              los deſcribitur, eſtque vnus ex Meridianis & diſtat à puncto aſſumpto
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              90. grad. circulus maximæ preſſionis erit, cui ſi omnes parallelos acci­
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              piam, omnes circulos preſſionum habeo, & probè diſtinguo arcus
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              vtiles ab inutilibus, & portionem ſuperficiei ab vtilibus rectam, ſeu
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              occupatam, ab alia; quæ profectò quantum varia ſit, cùm hinc expli­
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              cetur, illinc contrahatur, inde versùs Ortum, hinc versùs Boream ex­
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              currat ſatis patet. </s>
              <s id="s.001453">Vt autem majoris, vel minoris vim definiam, ratio­
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              ne ſcilicet puncti aſſumpti, initio ducto ab horizonte, ſeu circulo ma­
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              ximæ preſſionis, conſidero ac metior ſuperficiem vtilem (ſic eam vo­
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              co, quam arcus vtiles occupant) pro cujus diverſo ſitu, & diver­
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              ſa extenſione, diverſa ſequitur preſſio & elevatio in puncto aſſum­
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              pto Æquatoris; Hoc ſat benè intelligo; vellem tantùm, vt illud quod
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              vltimo loco adſtruxiſti, de aqua in anguſtias redacta paulò fuſiùs ex­
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              plicares. </s>
            </p>
            <p type="main">
              <s id="s.001454">
                <emph type="italics"/>
              Antim.
                <emph.end type="italics"/>
              </s>
              <s id="s.001455"> Per me licet; ſupponamus ita extrudi per canalem ADH.
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              vt altitudo alvei pleni ſit AC, latitudo verò initio ſit AB, ſed qui
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              retenta eadem altitudine, contrahatur ſecundùm latitudinem, ac proin-</s>
            </p>
          </chap>
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