Musschenbroek, Petrus van, Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes: ut et ephemerides meteorologicae ultraiectinae

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            <s xml:id="echoid-s3116" xml:space="preserve">
              <pb o="128" file="0142" n="142" rhead="DISSERTATIO"/>
            tractionem paulum impediebat; </s>
            <s xml:id="echoid-s3117" xml:space="preserve">non tamen eam materiam, quæ at-
              <lb/>
            trahitur, reddit volatilem, licet avolare queat, ut mox patebit.</s>
            <s xml:id="echoid-s3118" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3119" xml:space="preserve">3. </s>
            <s xml:id="echoid-s3120" xml:space="preserve">Arena mixta fuit cum Nitro fixo, impoſitaque fornaci fuſoriæ
              <lb/>
            ſpatio horæ non abiit in Regulum. </s>
            <s xml:id="echoid-s3121" xml:space="preserve">Reliqua maſſa non attraheba-
              <lb/>
            tur â Magnete exceptâ tenui cruſta, quæ Carboni in crucibulum
              <lb/>
            injecto adhærebat.</s>
            <s xml:id="echoid-s3122" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3123" xml:space="preserve">4. </s>
            <s xml:id="echoid-s3124" xml:space="preserve">Deinde mixta fuit cum Nitro & </s>
            <s xml:id="echoid-s3125" xml:space="preserve">Carbone in pulverem contu-
              <lb/>
            ſo, atque per horam fuſoriæ fornaci immiſſa non abiit in regulum:
              <lb/>
            </s>
            <s xml:id="echoid-s3126" xml:space="preserve">maſſa inde producta non â Magnete attrahebatur, exceptis iis par-
              <lb/>
            tibus, quæ Carboni adhærebant.</s>
            <s xml:id="echoid-s3127" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3128" xml:space="preserve">5. </s>
            <s xml:id="echoid-s3129" xml:space="preserve">Arenæ alia pars mixta fuit cum Nitro & </s>
            <s xml:id="echoid-s3130" xml:space="preserve">floribus Sulphuris,
              <lb/>
            quæ in fornace aliquamdiu poſita, etiam Regulum non dedit.</s>
            <s xml:id="echoid-s3131" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3132" xml:space="preserve">Liquet ergo ex his 1°, Nitrum reddere illud volatile, quod in
              <lb/>
            hac Arena a Magnete attrahitur, idcirco enim actionem Nitri paſſa,
              <lb/>
            non amplius patitur Magnetis actionem in ſe.</s>
            <s xml:id="echoid-s3133" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3134" xml:space="preserve">6. </s>
            <s xml:id="echoid-s3135" xml:space="preserve">Volatile autem reddi poſſe id quod attrahitur a Magnete patet
              <lb/>
            ex hoc proceſſu.</s>
            <s xml:id="echoid-s3136" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3137" xml:space="preserve">Arenæ Indicæ ℨiij, miſtæ cum Salis Ammoniaci ℨiij, expoſitæ
              <lb/>
            fuerunt in crucibulo aperto Igni modico, â quo tamen Sal Ammo-
              <lb/>
            niacus volatilis eſt factus expulſuſque: </s>
            <s xml:id="echoid-s3138" xml:space="preserve">totum reſiduum pondus ha-
              <lb/>
            bebat ℨij. </s>
            <s xml:id="echoid-s3139" xml:space="preserve">cum granis 23, adeoque pondus Arenæ amiſſum fuit 37
              <lb/>
            granorum, poſito nihil Salis in Arenâ ſuperſtes fuiſle: </s>
            <s xml:id="echoid-s3140" xml:space="preserve">inerant re-
              <lb/>
            ſiduo grana majora, quam ante fuerant, coloris elegantis Cinnaba-
              <lb/>
            rini; </s>
            <s xml:id="echoid-s3141" xml:space="preserve">omnes reliquæ partes amiſſâ priori nigredine ad obſcure ru-
              <lb/>
            brum vergebant: </s>
            <s xml:id="echoid-s3142" xml:space="preserve">Magnes ſupra hæc omnia poſitus, ductus, imo
              <lb/>
            iis applicatus, vix aliquid attrahere potuit, dabatur tamen attractio
              <lb/>
            obſcura: </s>
            <s xml:id="echoid-s3143" xml:space="preserve">Reſiduum Aqua lotum & </s>
            <s xml:id="echoid-s3144" xml:space="preserve">edulcoratum, deinde exſicca-
              <lb/>
            tum, non majori vi quam ante a Magnere attractum fuit: </s>
            <s xml:id="echoid-s3145" xml:space="preserve">mani-
              <lb/>
            feſto indicio ſimul cum Sale Ammoniaco avolaſſe ex hac Arena,
              <lb/>
            quicquid a Magnete attrahitur.</s>
            <s xml:id="echoid-s3146" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3147" xml:space="preserve">Non tamen id valde volatile eſt, aut cum leviſſimis Salis Ammo-
              <lb/>
            niaci partibus adſcendit, licet ex hac Arena, ſimul cum illispartes
              <lb/>
            quædam Aurantii coloris in auras adſcendant, uti ex ſequenti pro-
              <lb/>
            ceſſu liquebit.</s>
            <s xml:id="echoid-s3148" xml:space="preserve"/>
          </p>
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            <s xml:id="echoid-s3149" xml:space="preserve">7. </s>
            <s xml:id="echoid-s3150" xml:space="preserve">Mixtæ fuerunt Arenæ ℨiij, cum Salis Ammoniaci ℨiij, quæ
              <lb/>
            incluiæ phialæ committebantur Igni Arenæ trihorii ſpatio, quo </s>
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