Gravesande, Willem Jacob 's, Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1
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            <s xml:id="echoid-s11439" xml:space="preserve">
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            denſitatem duplam redigitur.</s>
            <s xml:id="echoid-s11440" xml:space="preserve"/>
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        <div xml:id="echoid-div1638" type="section" level="1" n="395">
          <head xml:id="echoid-head536" xml:space="preserve">
            <emph style="sc">Machina</emph>
          ,</head>
          <head xml:id="echoid-head537" style="it" xml:space="preserve">Qua in Aëre compreſſo Experimenta inſtituuntur.</head>
          <p>
            <s xml:id="echoid-s11441" xml:space="preserve">Tabulæ ligneæ a a, longitudinis circiter quindecim & </s>
            <s xml:id="echoid-s11442" xml:space="preserve">
              <lb/>
              <note position="left" xlink:label="note-0428-01" xlink:href="note-0428-01a" xml:space="preserve">1111.</note>
            latitudinis decem pollicum, imponitur orbis æneus N, dia-
              <lb/>
              <note position="left" xlink:label="note-0428-02" xlink:href="note-0428-02a" xml:space="preserve">TAB. XLIV.
                <lb/>
              fig. 5.</note>
            metri quinque aut ſex pollicum, cujus figura ſeparata da-
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            tur in N Tab. </s>
            <s xml:id="echoid-s11443" xml:space="preserve">42. </s>
            <s xml:id="echoid-s11444" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s11445" xml:space="preserve">4.</s>
            <s xml:id="echoid-s11446" xml:space="preserve">; cum hoc, ab inferiori parte, co-
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            hæret cauda, aut prominentia, cylindrica P, quæ non
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            perforatur, & </s>
            <s xml:id="echoid-s11447" xml:space="preserve">tabulam a a trajicit. </s>
            <s xml:id="echoid-s11448" xml:space="preserve">Huic orbi imponitur, & </s>
            <s xml:id="echoid-s11449" xml:space="preserve">
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            cum ipſo cochleis jungitur vas æneum VV, altitudinis cir-
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            citer decem pollicum.</s>
            <s xml:id="echoid-s11450" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11451" xml:space="preserve">Obtegitur vas operculo D. </s>
            <s xml:id="echoid-s11452" xml:space="preserve">Columnæ CS, CS, cum ta-
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            bula a a cohærent, trajiciuntque lignum d e, quo opercu-
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            lum D arcte cum vaſe conjungitur, ope cochlearum f f. </s>
            <s xml:id="echoid-s11453" xml:space="preserve">Ta-
              <lb/>
            lis arcta compreſſio maxime eſt neceſſaria, ingreſſuſque aë-
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            ris interpoſitis coriis, oleo imbutis, cohibetur.</s>
            <s xml:id="echoid-s11454" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11455" xml:space="preserve">Operculi ſeparata Figura datur in D, Tab. </s>
            <s xml:id="echoid-s11456" xml:space="preserve">42. </s>
            <s xml:id="echoid-s11457" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s11458" xml:space="preserve">4.</s>
            <s xml:id="echoid-s11459" xml:space="preserve">;
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            cum hoc cohæret pyxis cum coriis , & </s>
            <s xml:id="echoid-s11460" xml:space="preserve">ne ſuperficiei
              <note position="left" xlink:label="note-0428-03" xlink:href="note-0428-03a" xml:space="preserve">* 1096.</note>
            mis parvæ applicetur lignum d e, circumdatur pyxis annulo,
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            qui cum operculo cohæret & </s>
            <s xml:id="echoid-s11461" xml:space="preserve">diametrum habet diametro
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            operculi fere æqualem.</s>
            <s xml:id="echoid-s11462" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11463" xml:space="preserve">Trajicit pyxidem cum coriis filum æneum perforatum C,
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            cum quo cohæret epiſtomium B.</s>
            <s xml:id="echoid-s11464" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11465" xml:space="preserve">Comprimitur aër in vaſe, jungendo epiſtomio poſtremo
              <lb/>
              <note position="left" xlink:label="note-0428-04" xlink:href="note-0428-04a" xml:space="preserve">1112.</note>
            memorato antliam AB: </s>
            <s xml:id="echoid-s11466" xml:space="preserve">cum hac conjunctum datur epiſto-
              <lb/>
              <note position="left" xlink:label="note-0428-05" xlink:href="note-0428-05a" xml:space="preserve">TAB. XLII.
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              fig. 6.</note>
            mium, in quo, præter foramen ſolitum, aliud obliquum
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            datur, quod ad f pervenit, & </s>
            <s xml:id="echoid-s11467" xml:space="preserve">quo, clauſa communicatione
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            inter vas & </s>
            <s xml:id="echoid-s11468" xml:space="preserve">antliam, hæc cum aëre exteriori communicatur,
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            & </s>
            <s xml:id="echoid-s11469" xml:space="preserve">aëre impletur elevando embolum. </s>
            <s xml:id="echoid-s11470" xml:space="preserve">Aperta communica-
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            tione inter vas & </s>
            <s xml:id="echoid-s11471" xml:space="preserve">antliam, deſcenſu emboli aër in antlia con-
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            tentus vaſe intruditur; </s>
            <s xml:id="echoid-s11472" xml:space="preserve">hacque ſæpius repetita operatione
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            tandem ad propoſitam denſitatem redigitur.</s>
            <s xml:id="echoid-s11473" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11474" xml:space="preserve">Indice mercuriali denſitas aëris determinatur. </s>
            <s xml:id="echoid-s11475" xml:space="preserve">Eſt index hic
              <lb/>
            tubus vitreus, admodum anguſtus, qui cohæret cum fruſto
              <lb/>
            æneo, quod cochleis inter epiſtomia Machinæ & </s>
            <s xml:id="echoid-s11476" xml:space="preserve">Antliæ
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            aptatur. </s>
            <s xml:id="echoid-s11477" xml:space="preserve">Dum aër in Machina comprimitur, mercurius </s>
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