Weidler, Johann Friedrich, Jo. Friderici Weidleri Tractatus de machinis hydraulicis toto terrarum orbe maximis Marlyensi et Londinensi et aliis rarioribus similibus in quo mensurae prope ipsas machinas notatae describuntur, et de viribus earum luculenter disseritur

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          <pb file="0011" n="11"/>
          <figure number="2">
            <image file="0011-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0011-01"/>
          </figure>
        </div>
        <div xml:id="echoid-div7" type="section" level="1" n="7">
          <head xml:id="echoid-head16" xml:space="preserve">PRAEFATIO.</head>
          <p style="it">
            <s xml:id="echoid-s17" xml:space="preserve">Inter ea, quae ab artium cultore iter
              <lb/>
            ad exteros ſuſcipiente, curioſius at-
              <lb/>
            tentiusque conſiderari merentur,
              <lb/>
            machinas quoque ingenioſe inuentas,
              <lb/>
            feliciterque conſtructas, omnino nu-
              <lb/>
            merandas eſſe arbitor. </s>
            <s xml:id="echoid-s18" xml:space="preserve">Fiunt enim
              <lb/>
            peregrinationes ſingularium obſer-
              <lb/>
            uationum conquirendarum cauſa,
              <lb/>
            quales potiſſimum ingens machinamentorum uarietas offert,
              <lb/>
            in quibus ſaepe numero locus uſusue nouas ſuggerit uirium
              <lb/>
            conſociationes, quae ſine peculiari eiusmodi occaſione pror-
              <lb/>
            ſus fuiſſent intermiſſae. </s>
            <s xml:id="echoid-s19" xml:space="preserve">Praeterea machinas non uulgares
              <lb/>
            babeo pro totidem grauiſſimis naturae et artis experimentis,
              <lb/>
            quae otioſis ſpeculationibus minime praecipiuntur, ſed ſolo
              <lb/>
            ex euentu rite diiudicantur. </s>
            <s xml:id="echoid-s20" xml:space="preserve">Siquidem permultum intereſt
              <lb/>
            inter fabricam abſolutam, et conceptum animo potentiarum
              <lb/>
            nexum, uel earum ſimulacra in cbarta depicta. </s>
            <s xml:id="echoid-s21" xml:space="preserve">Illius effectus
              <lb/>
            et una uirtutes et uitia promte patent ſpectatori, qui princi-
              <lb/>
            piorum macbinalis ſcientiae non plane imperitus eſt, baec
              <lb/>
            autem inuentores ſuos ſaepius fallere et a magna ſpe depellere
              <lb/>
            ſolent. </s>
            <s xml:id="echoid-s22" xml:space="preserve">Idemque ideo contingere debet, quia </s>
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