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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[Item 1.]
[2.] PETRI VAN MUSSCHENBROEK A. L. M. Med. & Phil. D. Phil. & Matheſ. Profeſſ. in Acad. Ultraj. PHYSICÆ EXPERIMENTALES, ET GEOMETRICÆ, DE MAGNETE, TUBORUM CAPILLARIUM VITREORUM-QUE SPECULORUM ATTRACTIONE, MAGNITUDINE TERRÆ, COHÆRENTIA CORPORUM FIRMORUM DISSERTATIONES: UTET EPHEMERIDES METEOROLOGICÆ ULTRAJECTINÆ.
[3.] LUGDUNI BATAVORUM, Apud SAMUELEM LUCHTMANS, MDCCXXIX.
[4.] NOBILISSIMIS ET AMPLISSIMIS VIRIS LUCÆ VAN VOORST, JCTO. ET HENRICO VAN SOESTDYK, INCLYTÆ URBIS TRAJECTINÆ CONSULIBUS, HAS DISSERTATIONES EA QUA PAR EST OBSERVANTIA D. D. D. PETRUS VAN MUSSCHENBROEK.
[5.] LECTORI SALUTEM.
[6.] ERRATA TYPOGRAPHICA.
[7.] Berigt voor den Boekbinder.
[8.] DISSERTATIO PHYSICA EXPERIMENTALIS DE MAGNETE. PRÆFATIO.
[9.] Ex Ferro meruit vitam, ferrique rigore Veſcitur, has dulces epulas, hæc pabula novit.
[10.] DISSERTATIO PHYSICA EXPERIMENTALIS DE MAGNETE. CAPUT I. DE ACTIONE MAGNETUM IN SE MUTUO.
[11.] EXPERIMENTUMI
[12.] EXPERIMENTUM II.
[13.] EXPERIMENTUM III.
[14.] EXPERIMENTUM IV.
[15.] EXPERIMENTUM V.
[16.] EXPERIMENTUM VI.
[17.] EXPERIMENTUM VII. & VIII.
[18.] EXPERIMENTUM IX, X, XI, XII.
[19.] EXPERIMENTUM XIII.
[20.] EXPERIMENTUM XIV.
[21.] EXPERIMENTUM XV.
[22.] CAPUT II. DE ACTIONE MAGNETIS IN FERRUM.
[23.] Flagrat anbela ſilex, & amicam ſaucia ſentit Materiam, placidosque chalybs cognoſcit amores.
[24.] EXPERIMENTUM XVI.
[25.] EXPERIMENTUM XVII.
[26.] EXPERIMENTUM XVIII.
[27.] EXPERIMENTUM XIX.
[28.] EXPERIMENTUM XX.
[29.] EXPERIMENTUM XXI.
[30.] EXPERIMENTUM XXII.
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          <head xml:id="echoid-head53" xml:space="preserve">PROCESSUS SEPTIMUS.</head>
          <p>
            <s xml:id="echoid-s2071" xml:space="preserve">Magnetis in pulverem reducti & </s>
            <s xml:id="echoid-s2072" xml:space="preserve">Nitri ana ℨiij. </s>
            <s xml:id="echoid-s2073" xml:space="preserve">bene miſtas in
              <lb/>
            crucibulo expoſui igni in furno anemi, per trihorium, in quo abie-
              <lb/>
            runt in maſſam ſirmam, ſpongioſam, non ſplendentem, nigreſcen-
              <lb/>
            tem, crucibulo adeo pertinaciter adhærentem, ut non niſi eo dif-
              <lb/>
            fracto ſeparari potuerit: </s>
            <s xml:id="echoid-s2074" xml:space="preserve">hæc in pulverem contuſa a Magnete attra-
              <lb/>
            hebatur, ſaporem parumper ſalſum retinuerat ab Alcali, in quod
              <lb/>
            Nitrum in Igne converſum fuit: </s>
            <s xml:id="echoid-s2075" xml:space="preserve">cum Maſſa homogenei fuerat co-
              <lb/>
            loris in hac prima operatione, nihil ſeparati diſtinctique dedit, quare
              <lb/>
            illam alteri exponebam operationi.</s>
            <s xml:id="echoid-s2076" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2077" xml:space="preserve">2. </s>
            <s xml:id="echoid-s2078" xml:space="preserve">Pulveri priori admiſcui Nitri æqualem copiam, atque eum in
              <lb/>
            crucibulo per horas 2 {1/2} vehementiſſimo Igni carbonum foſſilium in
              <lb/>
            furno reverberii expoſui; </s>
            <s xml:id="echoid-s2079" xml:space="preserve">tum abiit in maſſam valde friabilem, ſo-
              <lb/>
            lisque digitis in pulverem conterendam, rubeſcentem, ſed ubivis
              <lb/>
            homogeneam, nihilque diſtincti præbentem: </s>
            <s xml:id="echoid-s2080" xml:space="preserve">reduxi eam in pulve-
              <lb/>
            rem, ſed qui parum a Magnete attrahebatur; </s>
            <s xml:id="echoid-s2081" xml:space="preserve">unde concluſiſſem
              <lb/>
            partem viribus donatam cum Nitro avolaſſe, niſi certo certius ſci-
              <lb/>
            viſſem, hoc tantum provenire a copia Salis, undique pulveri ad-
              <lb/>
            hærentis, & </s>
            <s xml:id="echoid-s2082" xml:space="preserve">vim Magnetis in alia corpora prohibentis.</s>
            <s xml:id="echoid-s2083" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2084" xml:space="preserve">3. </s>
            <s xml:id="echoid-s2085" xml:space="preserve">Pulverem immiſſum phialæ cum Aqua digeſſi, coxique ſpatio
              <lb/>
            8 dierum, obſervaturus an tincturam daret, ſed nullomodo ſol-
              <lb/>
            vebatur: </s>
            <s xml:id="echoid-s2086" xml:space="preserve">tum pulverem in copioſiſſima diluebam & </s>
            <s xml:id="echoid-s2087" xml:space="preserve">lavabam A qua,
              <lb/>
            donec inſipidus evadebat; </s>
            <s xml:id="echoid-s2088" xml:space="preserve">poſtea exſiccatus, manſit rubeſcentis
              <lb/>
            coloris, & </s>
            <s xml:id="echoid-s2089" xml:space="preserve">multo fortius a Magnete attrahebatur quam antea in §.
              <lb/>
            </s>
            <s xml:id="echoid-s2090" xml:space="preserve">2: </s>
            <s xml:id="echoid-s2091" xml:space="preserve">imo dubitabam an in attractione differentia obtineret inter præ-
              <lb/>
            ſentem & </s>
            <s xml:id="echoid-s2092" xml:space="preserve">eam ante inſtitutam ullam operationem cum pulvere.</s>
            <s xml:id="echoid-s2093" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2094" xml:space="preserve">Iterum ex hujus Salis operatione nihil ulterius ſperabam; </s>
            <s xml:id="echoid-s2095" xml:space="preserve">videbam
              <lb/>
            equidem hujus corroſionem aliam fuiſſe, quam Salis Tartari,
              <lb/>
            aut Salis Marini, quia pulvis alio colore donabatur; </s>
            <s xml:id="echoid-s2096" xml:space="preserve">nunc enim erat
              <lb/>
            rubeſcens, quiantea gryſeus, rubeſcens, nigreſcenſque habebatur, ſed
              <lb/>
            ita non ad ſcopum perveniebam: </s>
            <s xml:id="echoid-s2097" xml:space="preserve">quare ad aliud examen me ac-
              <lb/>
            cinxi.</s>
            <s xml:id="echoid-s2098" xml:space="preserve"/>
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