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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        <div xml:id="echoid-div42" type="section" level="1" n="42">
          <pb o="81" file="0095" n="95" rhead="DE MAGNETE."/>
          <p>
            <s xml:id="echoid-s1938" xml:space="preserve">In animum induxeram ſingula hæc ſtrata ſeorſim examinare,
              <lb/>
            verum aliis diſtrictus negotiis, uſque in ſequentem diſtuli hoc nego-
              <lb/>
            tium diem; </s>
            <s xml:id="echoid-s1939" xml:space="preserve">quo animadverti maſſam ab humido aëris fuiſſe molliorem
              <lb/>
            redditam, ut ſtrata accurate ſeorſim ſeparare non potuerim, adeo-
              <lb/>
            que omnia modo inter ſe permiſcui.</s>
            <s xml:id="echoid-s1940" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1941" xml:space="preserve">2. </s>
            <s xml:id="echoid-s1942" xml:space="preserve">Hujus maſſæ drachmis tribus phialæ immiſſis ſuperaffudiaquam
              <lb/>
            putealem ad eminentiam unius digiti, digeſſique in furnulo ligneo
              <lb/>
            octo diebus, quibus eliciebatur Tinctura, pellucida, mediocriter
              <lb/>
            ſpiſſa, ex fulvo flaveſcens, quaſi in aqua rubigo ferri ſoluta fuiſſet:
              <lb/>
            </s>
            <s xml:id="echoid-s1943" xml:space="preserve">manſit in fundo phialæ potiſſima pars Magnetis non ſoluta.</s>
            <s xml:id="echoid-s1944" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1945" xml:space="preserve">3. </s>
            <s xml:id="echoid-s1946" xml:space="preserve">Tincturam leniter effuſam, ut nihil pulveris adeſſet, inſpiſſavi
              <lb/>
            & </s>
            <s xml:id="echoid-s1947" xml:space="preserve">exſiccavi in vaſe puro porcellanico, quæ dedit pulverem auran-
              <lb/>
            tii coloris, ſaporis ſalſi & </s>
            <s xml:id="echoid-s1948" xml:space="preserve">adſtringentis, quaſi aliquid vitrioli mar-
              <lb/>
            tis admiſtum fuiſſet; </s>
            <s xml:id="echoid-s1949" xml:space="preserve">qui pulvis nequaquam a Magnete attractus
              <lb/>
            fuit, licet armaturæ pes ipſi immediate applicaretur.</s>
            <s xml:id="echoid-s1950" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1951" xml:space="preserve">4. </s>
            <s xml:id="echoid-s1952" xml:space="preserve">Hunc pulverem aurantium inditum crucibulo, igni commiſi
              <lb/>
            aperto, ſolvebatur primo in fluidum, quod ebulliit, inſtar aquæ,
              <lb/>
            perpetuo emittens fumos copioſos, poſtea manſit pulvis nigreſcens,
              <lb/>
            ejuſdem coloris ac Magnes ante inſtitutam operationem, & </s>
            <s xml:id="echoid-s1953" xml:space="preserve">quiab
              <lb/>
            alio Magnete iterum vehementer attrahebatur, imo æque valide,
              <lb/>
            ac ſi pulvis Magnetis nullam actionem Ignis expertus fuiſſet.</s>
            <s xml:id="echoid-s1954" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1955" xml:space="preserve">5. </s>
            <s xml:id="echoid-s1956" xml:space="preserve">Aliam portionem maſſæ deſcriptæ in §. </s>
            <s xml:id="echoid-s1957" xml:space="preserve">1. </s>
            <s xml:id="echoid-s1958" xml:space="preserve">ſumſi ad ℨiij, ei-
              <lb/>
            que immiſſæ phialæ altæ ſuperaffuſum eſt Alcohol vini per ſe de-
              <lb/>
            ſtillatum, cum quo digeſtum eſt per octiduum, elicita fuit Tinctu-
              <lb/>
            ra ſpiſſior, viridiuſcula, manente ad fundum maxima parte pulve-
              <lb/>
            ris Magnetis non ſoluta: </s>
            <s xml:id="echoid-s1959" xml:space="preserve">hæc Tinctura habuit ſaporem acrem ſub-
              <lb/>
            ſalſum.</s>
            <s xml:id="echoid-s1960" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1961" xml:space="preserve">6. </s>
            <s xml:id="echoid-s1962" xml:space="preserve">Ex hac Tinctura eduxi omnem Spiritum vini, remanente in
              <lb/>
            fundo vaſis quamplurimo pulvere ex flavo fuſco, ſaporis ſalſi, ſed
              <lb/>
            acerrimi & </s>
            <s xml:id="echoid-s1963" xml:space="preserve">rodentis, qui nullum indicium attractionis edidit, Ver-
              <lb/>
            ſorio aut Magnete ipſi appoſitis.</s>
            <s xml:id="echoid-s1964" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1965" xml:space="preserve">7. </s>
            <s xml:id="echoid-s1966" xml:space="preserve">Hic pulvis igni aperto commiſſus in crucibulo, edidit eadem
              <lb/>
            phænomena, quæ pulvis in §. </s>
            <s xml:id="echoid-s1967" xml:space="preserve">4. </s>
            <s xml:id="echoid-s1968" xml:space="preserve">deſcriptus, abiitque in eundem
              <lb/>
            pulverem Magneticum nigreſcentem.</s>
            <s xml:id="echoid-s1969" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1970" xml:space="preserve">8. </s>
            <s xml:id="echoid-s1971" xml:space="preserve">Manſerat igitur in phialis pulvis Magnetis non ſolutus, nec in aqua,
              <lb/>
            necin Alcohole vini, hunc igitur inditum crucibulo, leniter </s>
          </p>
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