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-s2195" xml:space="preserve">
              <pb o="91" file="0105" n="105" rhead="DE MAGNETE."/>
            jectus fuiſſet; </s>
            <s xml:id="echoid-s2196" xml:space="preserve">ſedatus fuit elapſo aliquo tempore hic tumultus,
              <lb/>
            tum digeſta materia octo diebus, dedit Tincturam intenſe flavam,
              <lb/>
            in qua totus Magnes ſolutus continebatur, abſque ullis fere fæci-
              <lb/>
            bus; </s>
            <s xml:id="echoid-s2197" xml:space="preserve">hæc Tinctura non oſtendit ullam actionem in Acum nauti-
              <lb/>
            cam.</s>
            <s xml:id="echoid-s2198" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2199" xml:space="preserve">Nob Boyleus hunc Proceſſum inchoaverat, verum non produxerat
              <lb/>
            multum, memorat tamen ſe paucas hujus Tincturæ guttas inje-
              <lb/>
            ciſſe infuſo Gallarum, quod abibat in atramentum nigrum, & </s>
            <s xml:id="echoid-s2200" xml:space="preserve">
              <lb/>
            quod diverſimode poſitum apparebat cæruleum inſtar Tincturæ di-
              <lb/>
            lutæ Chalybis.</s>
            <s xml:id="echoid-s2201" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2202" xml:space="preserve">Tincturæ quoque huic Magnetis affudit Salem Tartari, a quo
              <lb/>
            præcipitatio fiebat, quæ evadebat ſimilis ſolutioni Vitrioli: </s>
            <s xml:id="echoid-s2203" xml:space="preserve">Alteri
              <lb/>
            parti hujus Tincturæ Magnetis immiſit Spiritum Urinæ fermentatæ,
              <lb/>
            cujus ope acquirebat præcipitatum ex flavo rubrum: </s>
            <s xml:id="echoid-s2204" xml:space="preserve">Verum non
              <lb/>
            examinavit magnus Philoſophus quaſnam vires hæc præcipitata
              <lb/>
            continebant, & </s>
            <s xml:id="echoid-s2205" xml:space="preserve">idcirco longe accuratius hæc tentamina inſtituere
              <lb/>
            tenebar.</s>
            <s xml:id="echoid-s2206" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2207" xml:space="preserve">2. </s>
            <s xml:id="echoid-s2208" xml:space="preserve">Ex Tincturâ immiſſa retortæ, lento Igne elicui omnem Spi-
              <lb/>
            ritum Salis Marini, donec remanebat materia perfecte ſicca, in qua
              <lb/>
            operatione obſervavi Magnetem fuiſſe ſemivolatilem factum in fo-
              <lb/>
            lutione Spiritus Salis, non enim in fundo retortæ hæſit materia
              <lb/>
            ſicca, ſed ad ſuperiorem ejus partem & </s>
            <s xml:id="echoid-s2209" xml:space="preserve">in collum uſque adſcen-
              <lb/>
            derat: </s>
            <s xml:id="echoid-s2210" xml:space="preserve">erat quoque duplicis coloris, purpureo donabatur pars in-
              <lb/>
            fima, luteo ſuprema, ſed hic a Spiritu ſalis imprimis relictus vi-
              <lb/>
            debatur.</s>
            <s xml:id="echoid-s2211" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2212" xml:space="preserve">3. </s>
            <s xml:id="echoid-s2213" xml:space="preserve">Fracta retorta ſeparatim collegi utramque materiam: </s>
            <s xml:id="echoid-s2214" xml:space="preserve">Neutra
              <lb/>
            ullomodo attrahebatur a Magnete, aut Verſorium nauticum com-
              <lb/>
            movebat. </s>
            <s xml:id="echoid-s2215" xml:space="preserve">Utraque erat in aëre aperto impatiens ſiccitatis: </s>
            <s xml:id="echoid-s2216" xml:space="preserve">Ecce
              <lb/>
            igitur iterum vis Magnetica ad ſilentium reducta; </s>
            <s xml:id="echoid-s2217" xml:space="preserve">prima fronte
              <lb/>
            credebam vim fore deſtructam, neque redituram in has partes,
              <lb/>
            quæ tamen poſtea reverſa fuit, ut in ſequentibus patebit.</s>
            <s xml:id="echoid-s2218" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2219" xml:space="preserve">4. </s>
            <s xml:id="echoid-s2220" xml:space="preserve">Maſſam utramque permiſcui, phialæque immiſſæ affudi aquam,
              <lb/>
            cum qua digeſſi per biduum, prodibat Tinctura intenſe flava, ſa-
              <lb/>
            poris acidi & </s>
            <s xml:id="echoid-s2221" xml:space="preserve">adſtringentis, atque ad fundum ſubſedit pulvis ni-
              <lb/>
            gricans: </s>
            <s xml:id="echoid-s2222" xml:space="preserve">effudi Tincturam, & </s>
            <s xml:id="echoid-s2223" xml:space="preserve">reſiduo novam adjeci aquam puram,
              <lb/>
            quâcum iterum illud digeſſi, ſimilemque priori acquiſivi </s>
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