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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          <p>
            <s xml:id="echoid-s3851" xml:space="preserve">
              <pb o="154" file="0168" n="168" rhead="DISSERTATIO"/>
            celerior, quam fuit ab Ortu ad verum Septentrionem, nam anno 1610
              <lb/>
            declinabat Acus 8 gradibus verſus Ortum, excurrerunt inter 1610 & </s>
            <s xml:id="echoid-s3852" xml:space="preserve">
              <lb/>
            1666 anni 56, quemadmodum inter 1666 & </s>
            <s xml:id="echoid-s3853" xml:space="preserve">1722. </s>
            <s xml:id="echoid-s3854" xml:space="preserve">cum igitur mo-
              <lb/>
            tus ab Ortu ad Boream fuit 8 graduum, poſtea æquali annorum in-
              <lb/>
            tervallo fuit a Borea ad Occaſum 13 graduum, patet ergo hunc po-
              <lb/>
            ſteriorem motum eſſe celeriorem.</s>
            <s xml:id="echoid-s3855" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3856" xml:space="preserve">Corol. </s>
            <s xml:id="echoid-s3857" xml:space="preserve">5. </s>
            <s xml:id="echoid-s3858" xml:space="preserve">Ut igitur motu medio 14 Minutorum Acus
              <lb/>
            Declinatio integrum circuitum abſolvat, indigebit ſpatio 1542
              <lb/>
            Annorum circiter, uti patet, ſi integer circulus 360 Graduum divi-
              <lb/>
            datur per 14 Minuta. </s>
            <s xml:id="echoid-s3859" xml:space="preserve">Fatendum tamen eſt, hoc eſſe admodum incer-
              <lb/>
            tum: </s>
            <s xml:id="echoid-s3860" xml:space="preserve">imo de ejuſmodi motu medio non interſe conveniunt Philo-
              <lb/>
            ſophi, Noëllius enim in Obſerv. </s>
            <s xml:id="echoid-s3861" xml:space="preserve">in China factis. </s>
            <s xml:id="echoid-s3862" xml:space="preserve">pag. </s>
            <s xml:id="echoid-s3863" xml:space="preserve">111. </s>
            <s xml:id="echoid-s3864" xml:space="preserve">ponit
              <lb/>
            9 {1/2} vel 10 Minuta: </s>
            <s xml:id="echoid-s3865" xml:space="preserve">Caſſini attribuit 11 vel 12 Minuta in L’ Hiſt. </s>
            <s xml:id="echoid-s3866" xml:space="preserve">de
              <lb/>
            L’ Acad. </s>
            <s xml:id="echoid-s3867" xml:space="preserve">Roy. </s>
            <s xml:id="echoid-s3868" xml:space="preserve">A°. </s>
            <s xml:id="echoid-s3869" xml:space="preserve">1701. </s>
            <s xml:id="echoid-s3870" xml:space="preserve">ipſique alii modo attribuunt 9 Minuta, in-
              <lb/>
            nixi obſervationibus captis Londini; </s>
            <s xml:id="echoid-s3871" xml:space="preserve">quas hic adjungendas eum in
              <lb/>
            finem duxi: </s>
            <s xml:id="echoid-s3872" xml:space="preserve">fuit igitur Declinatio obſervata</s>
          </p>
          <note position="right" xml:space="preserve">
            <lb/>
          # Anno # Grad. # M.
            <lb/>
          a Burrough # 1576 # 11 # 15
            <lb/>
          # 1612 # 6 # 10
            <lb/>
          a Guntero # 1622 # 6 # 0 # Verſus Ortum.
            <lb/>
          a Gellibrando # 1634 # 4 # 5
            <lb/>
          a Bondio # 1657 # 0 # 0
            <lb/>
          # 1665 # 1 # 22 {1/2}
            <lb/>
          # 1666 # 1 # 35? 36?
            <lb/>
          ab Halleyo # 1672 # 2 # 30 # Verſus Occaſum.
            <lb/>
          # 1683 # 4 # 30
            <lb/>
          # 1692 # 6 # 0
            <lb/>
          # 1700 # 8 # 0
            <lb/>
          </note>
          <p>
            <s xml:id="echoid-s3873" xml:space="preserve">Excurrerunt ab Anno 1576. </s>
            <s xml:id="echoid-s3874" xml:space="preserve">ad 1700 Anni 124. </s>
            <s xml:id="echoid-s3875" xml:space="preserve">quibus facta fuit
              <lb/>
            Declinationis mutatio 19°, 15`. </s>
            <s xml:id="echoid-s3876" xml:space="preserve">quibus diviſis per 124 Annos pro-
              <lb/>
            deunt pro uno Anno 9 {39/124} Minuta: </s>
            <s xml:id="echoid-s3877" xml:space="preserve">Kirchius obſervans Declinatio-
              <lb/>
            nem Magnetis Berolini, hanc adnotavit</s>
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