Aristoteles; Strato <Lampsacenus>; Theophrastus, De coloribvs libellvs

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            <s xml:id="echoid-s1071" xml:space="preserve">
              <pb o="39" file="0045" n="45" rhead="IN LIB. DE COLORIBVS."/>
            franguntur. </s>
            <s xml:id="echoid-s1072" xml:space="preserve">intermediæ enim partes ipſo-
              <lb/>
            rum luminis, omnes videntur eſſe nigræ,
              <lb/>
            propter tenebram.</s>
          </p>
          <p>
            <s xml:id="echoid-s1073" xml:space="preserve">Declaratum fuit, quòd aqua apparet nigra, quan-
              <lb/>
            do exaſperatur, pars ſcilicet illa vmbroſa, ad quam ra
              <lb/>
            dii propter inæqualitatem non pertingunt, atque hic
              <lb/>
            fuit tertius modus propoſitus, quare res nigredinem
              <lb/>
            demonſtrent: </s>
            <s xml:id="echoid-s1074" xml:space="preserve">in præſentia explicat ſecundum mo-
              <lb/>
            dum, docens quare nubes appareant nigræ. </s>
            <s xml:id="echoid-s1075" xml:space="preserve">Nubes
              <lb/>
            quidem ferè omnes videntur eſſe cauſa alicuius vm-
              <lb/>
            bræ: </s>
            <s xml:id="echoid-s1076" xml:space="preserve">verùm quædam ſunt rariores, quædam denſio-
              <lb/>
            res. </s>
            <s xml:id="echoid-s1077" xml:space="preserve">Quæ denſiores ſint, ob vaporum, qui in iis co-
              <lb/>
            augmentantur craſsitiẽ, profundæ conſpiciuntur. </s>
            <s xml:id="echoid-s1078" xml:space="preserve">& </s>
            <s xml:id="echoid-s1079" xml:space="preserve">
              <lb/>
            quoniam lumen, quod nequit penetrare, diſsipatur,
              <lb/>
            apparentnigræ. </s>
            <s xml:id="echoid-s1080" xml:space="preserve">Atque hoc innuit, cum inquit, pro-
              <lb/>
            pter hanc cauſam, quod ſcilicet lumen diſpergitur,
              <lb/>
            nubes quoque quando fuerit valde denſa, apparet nt
              <lb/>
            gra; </s>
            <s xml:id="echoid-s1081" xml:space="preserve">denſitas enim multa in cauſa eſt, quo minùs eam
              <lb/>
            lumen peruadat. </s>
            <s xml:id="echoid-s1082" xml:space="preserve">Deinde ſubdit, quòd qua ratione
              <lb/>
            mare, & </s>
            <s xml:id="echoid-s1083" xml:space="preserve">nubes videntur nigra, eadem & </s>
            <s xml:id="echoid-s1084" xml:space="preserve">aqua, & </s>
            <s xml:id="echoid-s1085" xml:space="preserve">aër
              <lb/>
            talia apparent, tum ſcilicet, quando non omnino pe-
              <lb/>
            netrat lumen in profunditatem, ob quam diſiiciun-
              <lb/>
            tur, diſsipantúrq. </s>
            <s xml:id="echoid-s1086" xml:space="preserve">radii, atque iccirco non illuſtrant.
              <lb/>
            </s>
            <s xml:id="echoid-s1087" xml:space="preserve">
              <emph style="sc">INTERMEDIAE ENIM</emph>
            . </s>
            <s xml:id="echoid-s1088" xml:space="preserve">Duriuſcula videntur eſſe
              <lb/>
            verba, ſenſus nihilominus eſt apertus. </s>
            <s xml:id="echoid-s1089" xml:space="preserve">reddit enim
              <lb/>
            cauſam, quare intermediæ partes, quæ lumen interci
              <lb/>
            piunt, nigri imaginem prębent: </s>
            <s xml:id="echoid-s1090" xml:space="preserve">ídque fieri in quit pro
              <lb/>
            pter tenebram, hoc eſt, quia lumine priuatur, ob di-
              <lb/>
            ſperſionem & </s>
            <s xml:id="echoid-s1091" xml:space="preserve">diſtractionem radiorum. </s>
            <s xml:id="echoid-s1092" xml:space="preserve">Atque illud
              <lb/>
            eſt, quod Ariſtoteles Sect. </s>
            <s xml:id="echoid-s1093" xml:space="preserve">23. </s>
            <s xml:id="echoid-s1094" xml:space="preserve">Problem. </s>
            <s xml:id="echoid-s1095" xml:space="preserve">23. </s>
            <s xml:id="echoid-s1096" xml:space="preserve">dixit atrum
              <lb/>
            eſſe, quod viſus non penetrat; </s>
            <s xml:id="echoid-s1097" xml:space="preserve">& </s>
            <s xml:id="echoid-s1098" xml:space="preserve">iccirco aërem emi-
              <lb/>
            nus nigrum, cominus candidum apparere. </s>
            <s xml:id="echoid-s1099" xml:space="preserve">viſus </s>
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