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

Table of Notes

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          <pb o="419" file="0433" n="433" rhead="DE MAGNITUDINE TERRÆ."/>
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          Sit ? ? linea Meridiana tranſeunsper Leidam, ? ſpectet Septentrio- \\ nem, ? Meridiem: obſervatur Gouda S ab hac Ortum verſus declinare \\ ita ut angulus ? E S, ſit # 45 gr. 31?.
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          Obſervatus autem eſt angulus S E O # 88 gr. 21?.
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          Et per Problema XXX. angulus O E ? # 31 gr. 0?. 30?.
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          Quare totus ? E ? datur # 164 gr. 52?. 30?.
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          Unde etiam reliquus ? E ? # 15 gr. 7?. 30?.
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          Atque ideo demiſſa perpendiculari ? ? erit angu- \\ lus E ? ? # 74 gr. 52?. 30?.
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          Datur per Problema XXX. ? E # 14730, 5.
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          Dabitur igitur per doctrinam Triangulorum perpen- \\ dicularis ? ?, differentia Longitudinis # 3843, 5, 7.
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          Et E ? differentia Latitudinis # 14220. 2.
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          Rurſus cum detur per Problema XLV. ? Q # 34952. 5.
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          Datur etiam per Problema XLV. angulus \\ L ? Q # 34 gr. 54?. 57?.
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          Et per Problema XXXIV angulus L ? E # 39 gr. 10?. 30?.
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          Atque ideo reliquus E ? Q # 4 gr. 15?. 33?.
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          Qui additus ad ? ? E # 74 gr. 52?. 30?.
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          Dabit ? ? Q ſive ? Q ? # 79 gr. 8?. 3?.
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          Et angulum Q ? ? # 10 gr. 51?. 57?.
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          Atque ideo Q ? differentia Longitudinis # 6589.
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          Et ? ? differentia Latitudinis inter Alcmariam & \\ Bergam ad Somum erit # 34326, 7.
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          Sed poli Alcmariani altitudo eſt, ut Caſſini bene \\ obſervavit, # 52 gr. 38?, 34.
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          Et poli altitudo Bergæ ad Somum eſt # 51 gr. 28?, 47?.
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          </note>
          <p>
            <s xml:id="echoid-s9374" xml:space="preserve">Quare differentia inter utraſque polorum altitudines eſt 1 Gradus,
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            9 Minutorum, 47 Secundorum.</s>
            <s xml:id="echoid-s9375" xml:space="preserve"/>
          </p>
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            <s xml:id="echoid-s9376" xml:space="preserve">Adeoque Gradus Terreſtris conſtabit perticis Rhenolandicis
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            29514, 2, 3. </s>
            <s xml:id="echoid-s9377" xml:space="preserve">Nam recta ? </s>
            <s xml:id="echoid-s9378" xml:space="preserve">? </s>
            <s xml:id="echoid-s9379" xml:space="preserve">vix differet a curva (uti Snellius ſu-
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            pra annotavit) ſecundum rigorem tamen Mathematicum foret ? </s>
            <s xml:id="echoid-s9380" xml:space="preserve">?
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            </s>
            <s xml:id="echoid-s9381" xml:space="preserve">modo chorda portionis circuli 69 minutorum, 47 ſecundorum. </s>
            <s xml:id="echoid-s9382" xml:space="preserve">Eſt
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            hæc noſtra menſura major quam Snelliana prima & </s>
            <s xml:id="echoid-s9383" xml:space="preserve">ſecunda; </s>
            <s xml:id="echoid-s9384" xml:space="preserve">quippe
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            prima ponit ? </s>
            <s xml:id="echoid-s9385" xml:space="preserve">? </s>
            <s xml:id="echoid-s9386" xml:space="preserve">28500 perticarum, & </s>
            <s xml:id="echoid-s9387" xml:space="preserve">ſecunda 28488. </s>
            <s xml:id="echoid-s9388" xml:space="preserve">perticarum. </s>
            <s xml:id="echoid-s9389" xml:space="preserve">
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            Lubet autem noſtram comparare cum ea, quam Celeberrimi </s>
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