Bernstein, Aaron, Naturwissenschaftliche Volksbücher, Bd. 12-16, 1897

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        <div xml:id="echoid-div72" type="section" level="1" n="65">
          <p>
            <s xml:id="echoid-s2690" xml:space="preserve">
              <pb o="75" file="0207" n="207"/>
            leihen kann. </s>
            <s xml:id="echoid-s2691" xml:space="preserve">Daß die Augenlider die Deckel der Augen ſind,
              <lb/>
            weiß jedermann. </s>
            <s xml:id="echoid-s2692" xml:space="preserve">Die Vorteile eines ſolchen Deckels liegen auf
              <lb/>
            der Hand, und man bringt einen ſolchen an jeder Kamera-
              <lb/>
            Obſcura an, die man vor Staub und ſonſt nachteiligen Ein-
              <lb/>
            flüſſen bewahren will. </s>
            <s xml:id="echoid-s2693" xml:space="preserve">Man ſchiebt einen Deckel auf die Faſſung
              <lb/>
            der Glaslinſen, ſo oft man die Kamera nicht benutzt. </s>
            <s xml:id="echoid-s2694" xml:space="preserve">— Was
              <lb/>
            aber das Auge ganz beſonders bei dieſem Deckel auszeichnet,
              <lb/>
            iſt Folgendes.</s>
            <s xml:id="echoid-s2695" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2696" xml:space="preserve">Das Augenlid iſt nicht nur ein Deckel, den man will-
              <lb/>
            kürlich, ſo oft man das Auge nicht benutzen will, über das-
              <lb/>
            ſelbe legen kann, ſondern es iſt ein Deckel, der ſich ganz un-
              <lb/>
            willkürlich ſchließt, wenn es dem Auge not thut.</s>
            <s xml:id="echoid-s2697" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2698" xml:space="preserve">Man kann gewiſſermaßen ſagen, das Augenlid, dieſer
              <lb/>
            Vorhang, der das Auge verſchließt, gehört zum Teil uns an,
              <lb/>
            wir haben Macht über dasſelbe, wir können es mit unſerm
              <lb/>
            Willen und Wiſſen ſchließen und öffnen; </s>
            <s xml:id="echoid-s2699" xml:space="preserve">es gehört aber zum
              <lb/>
            Teil dem Auge ſelber an, das über das Lid gebietet, ohne
              <lb/>
            nach unſerm Willen und Wiſſen zu fragen. </s>
            <s xml:id="echoid-s2700" xml:space="preserve">Wir ſchließen und
              <lb/>
            öffnen wohl an tauſendmal in einem Tage das Augenlid, ohne
              <lb/>
            es zu wiſſen, und ſelbſt, wenn wir es nicht wollen.</s>
            <s xml:id="echoid-s2701" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2702" xml:space="preserve">Die Kamera-Obſcura, mit der wir zur Welt kommen, hat
              <lb/>
            alſo einen Deckel, der ſich nach ihrem eigenen Bedürfnis auf-
              <lb/>
            und zumacht, ohne uns um Erlaubnis zu fragen, oder auf
              <lb/>
            unſern Befehl zu warten.</s>
            <s xml:id="echoid-s2703" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2704" xml:space="preserve">Und wie dies ſein Gutes hat, und wie dies dem Auge
              <lb/>
            ſelber dienlich iſt, darüber wollen wir nur ein paar Worte hier
              <lb/>
            herſetzen.</s>
            <s xml:id="echoid-s2705" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2706" xml:space="preserve">Ohne Zweifel würde nicht wenig Staub unſer Auge be-
              <lb/>
            decken, wenn wir es die Nacht nicht geſchloſſen hätten; </s>
            <s xml:id="echoid-s2707" xml:space="preserve">nun
              <lb/>
            wäre es in der That nicht zu viel, wenn dieſe leichte Arbeit,
              <lb/>
            das Auge zu ſchließen, nur unſerer Vorſicht überlaſſen worden
              <lb/>
            wäre; </s>
            <s xml:id="echoid-s2708" xml:space="preserve">allein da man gerade im Moment des Einſchlafens am
              <lb/>
            allerwenigſten etwas von Vorſicht beſitzt, ſo iſt Hundert </s>
          </p>
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