Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627
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              quæ à circulo mouentur, licet planitiem abſide non contingat,
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              ſed aut iuxta planitiem, aut ueluti trochleæ. </s>
              <s id="N13E7D">Etenim hoc ſe
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              habentes modo facillimè mouentur, & onera commouent. </s>
              <s id="N13E82">An
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              quia parua ſui portione cùm tangit, tum offenſat circulus, ſed
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              aliam ob cauſam? </s>
              <s id="N13E89">ea autem eſt, quæ dicta est prius, quod circu­
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              lus ſcilicet ex duabus effectus eſt lationibus: quamobrem il­
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              larum alteram pro nutu ſemper habet, & veluti continuò mo­
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              tum illum moueat quicumque mouent, quando ſecundum cir­
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              cumferentiam illum mouerint: latam enim ipſam mouent.
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              <s id="N13E95">Eam quidem igitur, quæ in obliquum eſt, motionem, ipſum
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              impellit mouens: ſecundum verò illam, quæ ſuper diametrum
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              est, ſe ipſum mouet circulus.
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              <s id="N13EA0">COMMENTARIVS.</s>
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              <s id="N13EA6">Vt quæſtioni reſpondeat Ariſtoteles cur corpora,
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              quæ rotundam, aut orbiculatam figuram obtinent,
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              ſecundum illam facilius moueantur, triplicem mo­
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              dum diſtinguit, quo ipſa moueri rotando contingit. </s>
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                <expan abbr="Pri-mumq.">Pri­
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                mumque</expan>
              eſſe docet, quo ſecundum abſidem, ſeu extimam ip­
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              sorum curuaturam cientur, moto ſimul etiam centro, vt
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              plauſtrorum rotæ, quæ ſimul cum axe feruntur. </s>
              <s id="N13EBB">Secundum
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              verò modum, ait eſſe illum, quo circularia ipſa corpora re­
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              cta quidem ſtantia, ſeu rectè ad horizontem conſtituta mo­
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              uentur circa centrum immotum; veluti ſtantes trochlea­
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              rum rotulæ, quæ circa manentem axem, ſeu centrum ad di­
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              uerſos vſus conuertuntur. </s>
              <s id="N13EC8">Tertium denique modum eſſe
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              inquit, quo circa immotum pariter centrum mouentur, non
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              tamen ſtando, ſed quaſi proſtrata iuxta planitiem ſoli, aut
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              pauimenti horizonti paralellam; ſicut rota figuli, quæ ad
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              impulſum pedis illius conuertitur, ac circumagitur ſupra
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              axim pauimento perpendiculariter affixum, ſeruando ſem­
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              per eandem diſtantiam ab horizonte. </s>
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              <s id="N13ED9">Loquendo itaque de primo modo, pluribus ex cauſis, ait
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              Ariſtoteles præfata corpora celerius, ac facilius moueri
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              quàm illa, quæ rectilineas adepta ſunt figuras, ſeu rectilineis
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              figuris terminantur, vt triangulari, vel quadrangulari, pirami-</s>
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