Bernstein, Aaron, Naturwissenschaftliche Volksbücher, Bd. 12-16, 1897
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            <s xml:id="echoid-s4930" xml:space="preserve">
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            Kienholz nur ca. </s>
            <s xml:id="echoid-s4931" xml:space="preserve">2640 Pfund ſchwer, und wenn auch jedes
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            Pfund 15 Lot Waſſer mehr zu verdampfen imſtande iſt als
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            Büchenholz, ſo beſitzt man doch in der ganzen Klafter nur
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            eine Heizkraft, die etwa 12400 Pfund eiskaltes Waſſer in
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            Dampf verwandeln kann. </s>
            <s xml:id="echoid-s4932" xml:space="preserve">—</s>
          </p>
          <p>
            <s xml:id="echoid-s4933" xml:space="preserve">Gleichwohl ſieht man, daß der Heizwert der Klafter Büchen-
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            holz bei weitem geringer iſt, als man ihn im Vergleich mit
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            Kienholz vermuten ſollte, wenn man den Preis beider Holz-
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            arten zum Maßſtab nimmt. </s>
            <s xml:id="echoid-s4934" xml:space="preserve">Vergleicht man die Heizkraft
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            beider Holzarten, und beſtimmt man nach ihnen den Preis,
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            ſo müßte der des Kienholzes mit dem des Büchenholzes faſt
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            gleich ſein; </s>
            <s xml:id="echoid-s4935" xml:space="preserve">wenn ein Haufen Kienholz 30 Thaler koſtet, ſo
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            dürfte man für einen Haufen Büchenholz nicht mehr als
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            30 {1/2} Thaler bezahlen. </s>
            <s xml:id="echoid-s4936" xml:space="preserve">Wir wiſſen aber, daß dem nicht ſo iſt,
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            daß Büchenholz um mehr als zweimal ſo teuer iſt als Kien-
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            holz, daß alſo das Büchenholz im Vergleich zum Kienholz
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            viel zu hoch bezahlt wird.</s>
            <s xml:id="echoid-s4937" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s4938" xml:space="preserve">Wollte man indeſſen hieraus ſchließen, daß in dem
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            Gebrauch von teuerem Büchenholz eine Verſchwendung liegt,
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            ſo müſſen wir dem doch widerſprechen.</s>
            <s xml:id="echoid-s4939" xml:space="preserve"/>
          </p>
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            <s xml:id="echoid-s4940" xml:space="preserve">Würde nur der wiſſenſchaftlich ermittelte Heizwert eine
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            Rolle ſpielen, ſo würde dies freilich der Fall ſein; </s>
            <s xml:id="echoid-s4941" xml:space="preserve">allein in
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            der Praxis ſtellen ſich die Dinge durch weſentliche Einflüſſe
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            anders.</s>
            <s xml:id="echoid-s4942" xml:space="preserve"/>
          </p>
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            <s xml:id="echoid-s4943" xml:space="preserve">Vor allem muß man berückſichtigen, daß ſelbſt gut ge-
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            haltenes Holz nicht waſſerfrei iſt; </s>
            <s xml:id="echoid-s4944" xml:space="preserve">es iſt alſo in einer Klafter Holz
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            eine Portion Waſſer enthalten, die ſehr verſchieden iſt. </s>
            <s xml:id="echoid-s4945" xml:space="preserve">Weiches
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            Holz ſaugt ſich ſeiner Natur nach ſchneller mit Waſſer an als
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            hartes, wenn beide Sorten auf dem Holzplatz dem Regen aus-
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            geſetzt ſind. </s>
            <s xml:id="echoid-s4946" xml:space="preserve">Selbſt aber, wenn ſie mittelmäßig trocken ſind,
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            muß man eine mittlere Feuchtigkeit in beiden Sorten von dem
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            Brennſtoff in Abrechnung bringen. </s>
            <s xml:id="echoid-s4947" xml:space="preserve">Nun ergaben die Unter-
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            ſuchungen, daß Büchenholz circa 14 Prozent Waſſer, </s>
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