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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            ces in XXI. </s>
            <s xml:id="echoid-s1032" xml:space="preserve">Experimento. </s>
            <s xml:id="echoid-s1033" xml:space="preserve">Ex quibus ergo Experimentis abunde patet
              <lb/>
            corollarium elicitum: </s>
            <s xml:id="echoid-s1034" xml:space="preserve">attamen volui id ulterius confirmare, ſumſique
              <lb/>
            acum rotatilem, ſive verſorium, vulgo cen Compas naalde, non affrictam
              <lb/>
            Magneti, obſervavi in quanam diſtantia â Magnete in cipiebat rotari
              <lb/>
            moto Magnete, dein acum affricui Magneti, quæ viribus imprægnata
              <lb/>
            inſtar alterius Magnetis ſe habebat, hæc acus cardiniſuo impoſita con-
              <lb/>
            vertebatur ad diſtantiam 4. </s>
            <s xml:id="echoid-s1035" xml:space="preserve">pedum â Magnete rotundo, No, cum
              <lb/>
            antea ad diſtantiam 9. </s>
            <s xml:id="echoid-s1036" xml:space="preserve">pollicum nondum convertebatur. </s>
            <s xml:id="echoid-s1037" xml:space="preserve">Quam-
              <lb/>
            obrem hoc Corollarium ſatis demonſtratum erit; </s>
            <s xml:id="echoid-s1038" xml:space="preserve">atque ſimul in eo li-
              <lb/>
            quet, Magnetem vim ſuam ex ſe emittere extrorſum ad majorem
              <lb/>
            diſtantiam, quam Ferrum purum, id autem vires ad majus inter-
              <lb/>
            vallum ejaculare, poſtquam Magnetem attigit.</s>
            <s xml:id="echoid-s1039" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1040" xml:space="preserve">Corol. </s>
            <s xml:id="echoid-s1041" xml:space="preserve">4. </s>
            <s xml:id="echoid-s1042" xml:space="preserve">Omnia autem hæc Experimenta inſtituta ſunt, ut ex-
              <lb/>
            plorarem quænam proportio inter vim attrahentem Magnetis & </s>
            <s xml:id="echoid-s1043" xml:space="preserve">di-
              <lb/>
            ſtantias daretur; </s>
            <s xml:id="echoid-s1044" xml:space="preserve">quod ſi Experimentum XVII. </s>
            <s xml:id="echoid-s1045" xml:space="preserve">ante oculos pona-
              <lb/>
            mus, atque examen incipiamus a diſtantia 12. </s>
            <s xml:id="echoid-s1046" xml:space="preserve">linearum uſque ad
              <lb/>
            3. </s>
            <s xml:id="echoid-s1047" xml:space="preserve">lineas, animadvertemus numeros, exprimentes magnitudinem
              <lb/>
            attractionis, eſſe fere in ratione inverſâ diſtantiarum, a quâ pro-
              <lb/>
            portione tamen abludunt attractiones in minoribus & </s>
            <s xml:id="echoid-s1048" xml:space="preserve">in majoribus
              <lb/>
            diſtantiis obſervatæ, incipiamus enim calculum a diſtantia 12. </s>
            <s xml:id="echoid-s1049" xml:space="preserve">li-
              <lb/>
            nearum, minorem verſus pergendo, tum numeros in inverſa ratione
              <lb/>
            diſtantiarum erutos deprehendemus ſequentes.</s>
            <s xml:id="echoid-s1050" xml:space="preserve"/>
          </p>
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          Diſtantiæ \\ in Lineis # Numeri \\ juxta Calculum # Attractiones \\ obſervatæ
            <lb/>
          12 # 35 # 35
            <lb/>
          11 # 38 {1/11} # 37
            <lb/>
          10 # 42 # 43
            <lb/>
          9 # 46 {2/3} # 47
            <lb/>
          8 # 52 {1/2} # 57
            <lb/>
          7 # 60 # 66
            <lb/>
          6 # 70 # 76
            <lb/>
          5 # 84 # 96
            <lb/>
          4 # 105 # 109
            <lb/>
          3 # 140 # 131
            <lb/>
          </note>
          <p>
            <s xml:id="echoid-s1051" xml:space="preserve">Si in reliquis diſtantiis numeri ope calculi inventi tam </s>
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