Fabri, Honoré, Tractatus physicus de motu locali, 1646

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              uiores ſunt difficultates, quam vt illis fieri ſatis queat; </s>
              <s id="N15E72">nam primò cor­
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              pus leuius ab his filamentis abripi faciliùs poſſet, vt conſtat in electro;
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              igitur citiùs deſcenderet. </s>
            </p>
            <p id="N15E7A" type="main">
              <s id="N15E7C">Secundò, corpus vicinius etiam faciliùs abriperetur. </s>
            </p>
            <p id="N15E7F" type="main">
              <s id="N15E81">Tertiò, numquid flante vento, vel imbre cadente diſſipantur hæc fi­
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              lamenta? </s>
              <s id="N15E86">quod etiam videmus in electro. </s>
            </p>
            <p id="N15E89" type="main">
              <s id="N15E8B">Quartò, manum meam æquè facilè traheret terra his funiculis ſeu
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              pondere grauatam, ſeu vacuam. </s>
            </p>
            <p id="N15E90" type="main">
              <s id="N15E92">Quintò, quemadmodum electrum ex omni parte trahit, ita terra ipſa
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              per omnem lineam traheret; immò etiam ſurſum in ſubterranea ſpecu,
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              quod eſt abſurdum. </s>
            </p>
            <p id="N15E9A" type="main">
              <s id="N15E9C">Sextò, hæc filamenta, quæ deinde reducuntur, debent habere cau­
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              ſam huius reductionis non extrinſecam; </s>
              <s id="N15EA2">igitur intrinſecam; igitur datur
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              motus naturalis. </s>
            </p>
            <p id="N15EA8" type="main">
              <s id="N15EAA">Septimò, hæc filamenta per mediam flammam non traherent, quod
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              etiam fieri videmus in electro. </s>
            </p>
            <p id="N15EAF" type="main">
              <s id="N15EB1">Quartò, motus naturalis non eſt à virtute quadam pellente, quam
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              cælo quidam affingunt; </s>
              <s id="N15EB7">nam vel ab omni parte cæli deorſum trudere­
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              tur, vel ab vnâ; ſi ab vna; </s>
              <s id="N15EBD">igitur in omni cæli plaga corpus non fertur
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              deorſum; </s>
              <s id="N15EC3">ſi ab omni, ergo cum pellatur corpus per plures lineas etiam
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              oppoſitas moueri non poteſt: </s>
              <s id="N15EC9">Præterea debilior eſſet hæc vis in maiori
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              diſtantiâ; denique vapores, & alia minutiora corpuſcula in aëre fluitan­
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              tia faciliùs deorſum truderentur, contra experientiam. </s>
            </p>
            <p id="N15ED1" type="main">
              <s id="N15ED3">Sed non eſt omittendum, quod aliqui putant ex illis filamentis con­
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              texi poſſe legitimam rationem, cur atomi etiam plumbeæ materiæ non
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              ita facilè deſcendant; </s>
              <s id="N15EDB">quòd ſcilicet propter ſuam tenuitatem ab illis fi­
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              lamentis non ita intercipi vel implicari poſſint; </s>
              <s id="N15EE1">ſed quaſi piſces per fo­
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              ramina retium euadant; ſed profectò longè alia ratio eſt, quàm ſuo loco
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              afferemus, nam etiam plumæ, feſtucæ, paleæ, & alia corpuſcula longio­
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              ra, ſed leuiſſima iis filamentis implicarentur, vt videre eſt in electro. </s>
            </p>
            <p id="N15EEB" type="main">
              <s id="N15EED">Quintò, aliqui recentiores exiſtimant corpora deorſum trudi ab
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              ipſa luce, quæ nihil eſt aliud, quam motio æthereæ cuiuſdam ſubſtan­
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              tiæ per poros aëris traductæ, vt ipſi volunt; ſed neque hoc probari po­
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              teſt. </s>
              <s id="N15EF7">Primò quia de nocte corpora æquali motu deorſum feruntur; pe­
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              rinde atque de die, nec minùs in obſcuriſſimo conclaui, quàm ſub dio,
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              vel aperto cælo. </s>
              <s id="N15EFF">Secundò, in ſubterraneis locis etiam grauia æquè veloci­
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              ter deſcendunt; </s>
              <s id="N15F05">licèt eò lumen non penetret; </s>
              <s id="N15F09">quod ſi aliquis obſtinatè,
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              id aſſereret; </s>
              <s id="N15F0F">haud dubiè per medium aëra maior huius materiæ copia
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              diffunditur, quàm per medias rupes, quis hoc neget; igitur pauciſſimi
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              radij vſque ad interius & inferius antrum perueniunt. </s>
              <s id="N15F17">Tertiò, manum
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              meam ſiue ponderi coniunctam ſiue ab eo
                <expan abbr="ſeparatã">ſeparatam</expan>
              æqualis portio illius
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              materiæ deorſum pelleret, vt patet; igitur æquali motus vi. </s>
              <s id="N15F23">Quartò, cor­
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              pus diaphanum, per cuius poros facilè traiicitur hæc materia, eſſet leuius
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              alio quod tamen falſum eſt, vt videre eſt in vitro, cryſtallo, adamante,
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              glacie. </s>
              <s id="N15F2C">Quintò maxima huius materiæ copia collecta ſeu ſpeculi opera </s>
            </p>
          </chap>
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