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-s2121" xml:space="preserve">
              <pb o="88" file="0102" n="102" rhead="DISSERTATIO"/>
            pars magna tum Salis, tum Magnetis avolaverit, non tamen omnis
              <lb/>
            Sal abierat, quippe ſapor ſalſus maſſæ manifeſtus inerat: </s>
            <s xml:id="echoid-s2122" xml:space="preserve">In omni-
              <lb/>
            bus tenuiſſime contuſis vis parva Magnetis obſervabatur, uti quidem
              <lb/>
            ante ſuſpicatus eram, quia Sal undequaque penetraverat in partes
              <lb/>
            Magneticas, cum quibus vehementer cohærebat, adeo ut vis for-
              <lb/>
            tiſſimi ignis tamdiu continuati eas a ſe avellere non potuerit: </s>
            <s xml:id="echoid-s2123" xml:space="preserve">ſed
              <lb/>
            id quod Ignis præſtare nequit, aqua facile abſolvit.</s>
            <s xml:id="echoid-s2124" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2125" xml:space="preserve">4. </s>
            <s xml:id="echoid-s2126" xml:space="preserve">Quamobrem huic pulveri in phiala ſuperaffundebatur aqua ad
              <lb/>
            exceſſum unius digiti, qua cum digeſſi per octiduum, viſurus an
              <lb/>
            tincturam præberet; </s>
            <s xml:id="echoid-s2127" xml:space="preserve">ſed nullam dedit, ſolummodo Sal Gemmæ
              <lb/>
            reſiduum fuit in aqua ſolutum, eo cognito, pulverem lavi copio-
              <lb/>
            ſa aqua, uſque dum inſipida redibat; </s>
            <s xml:id="echoid-s2128" xml:space="preserve">pulvis exſiccatus, erat ni-
              <lb/>
            grioris coloris, quam pulvis Magneticus ante operationem; </s>
            <s xml:id="echoid-s2129" xml:space="preserve">& </s>
            <s xml:id="echoid-s2130" xml:space="preserve">at-
              <lb/>
            trahebatur a Magnete fortius quam unquam antea; </s>
            <s xml:id="echoid-s2131" xml:space="preserve">quod evincebat
              <lb/>
            Salem admiſtum impediviſſe actionem ejus Magneticam; </s>
            <s xml:id="echoid-s2132" xml:space="preserve">& </s>
            <s xml:id="echoid-s2133" xml:space="preserve">aliquam
              <lb/>
            Terram inertem fuiſſe ſeparatam ex Magnetis ſubſtantia; </s>
            <s xml:id="echoid-s2134" xml:space="preserve">quam procul
              <lb/>
            dubio in §. </s>
            <s xml:id="echoid-s2135" xml:space="preserve">3. </s>
            <s xml:id="echoid-s2136" xml:space="preserve">ſepoſueram: </s>
            <s xml:id="echoid-s2137" xml:space="preserve">non autem dubitavi quin in hac maſſa
              <lb/>
            reſidua adhuc multum materiæ inertis contineretur, quæ ulteriori-
              <lb/>
            bus operationibus diutiſſime continuatis poſſet ſeparari ab omni effi-
              <lb/>
            caci, verum non ſatis otii fruebar, ut id ulterius indagarem; </s>
            <s xml:id="echoid-s2138" xml:space="preserve">po-
              <lb/>
            tius ad alias methodos feſtinavi, ſperans me facilius voti compotem
              <lb/>
            futurum. </s>
            <s xml:id="echoid-s2139" xml:space="preserve">Id tamen ex hiſce omnibus tentaminibus colligitur, vim
              <lb/>
            Magnetis ex Magnete non poſle tam facile expelli omnem, uti cre-
              <lb/>
            diderunt antea Philoſophi, videntes Magnetem magnum & </s>
            <s xml:id="echoid-s2140" xml:space="preserve">inte-
              <lb/>
            grum in Igne corrumpi, ſuaſque vires amittere; </s>
            <s xml:id="echoid-s2141" xml:space="preserve">ſed Lapis non
              <lb/>
            omnes amittit, & </s>
            <s xml:id="echoid-s2142" xml:space="preserve">quomodocunque tractetur, aliquid retinet, veluti
              <lb/>
            ex his huc uſque expoſitis patet tentaminibus, & </s>
            <s xml:id="echoid-s2143" xml:space="preserve">in ſequentibus
              <lb/>
            etiam ulterius liquebit.</s>
            <s xml:id="echoid-s2144" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div47" type="section" level="1" n="47">
          <head xml:id="echoid-head55" xml:space="preserve">PROCESSUS NONUS.</head>
          <p>
            <s xml:id="echoid-s2145" xml:space="preserve">Deſiderio flagrabam explorandi, an Magnes in vitrum converſus
              <lb/>
            vim attrahendi retineret, quoniam vitriſicatio eſt ultimus finis ope-
              <lb/>
            rationum Chemicarum, & </s>
            <s xml:id="echoid-s2146" xml:space="preserve">quæ corpora maxime immutat: </s>
            <s xml:id="echoid-s2147" xml:space="preserve">Magne-
              <lb/>
            tem per ſe, aut ope Borracis ſolius non in vitrum mutaveram hacte-
              <lb/>
            nus, licet diu & </s>
            <s xml:id="echoid-s2148" xml:space="preserve">vehementiſſimo Igni expoſuerim; </s>
            <s xml:id="echoid-s2149" xml:space="preserve">ideo </s>
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