Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 1: Opera mechanica

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[171.] MONITUM.
[172.] III. Excerpta ex literis Domini Hugenii, quibus re-ſpondet obſervationi Abbatis Catelani in 4am. pro-poſitionem Tractatus de centris Oſcillationis.
[173.] IV. Exceptio Abbatis Catelani ad reſponſionem Hugenii.
[174.] V. Objectio Abbatis Catelani contra motum Pendulorum in Cycloidibus.
[175.] VI. Reſponſio ad objectiones Hugenii adverſus me-thodum Abbatis Catelani de determinan-do Centro Oſcillationis.
[176.] VII. Excerpta ex litteris D. Bernoullii datis Baſileæ ad Autorem Diarii Pariſienſis, de Controverſia, inter Abbatem Catelanum & Hugenium, de Centro Oſcillationis.
[177.] VIII. Excerpta ex literis Dni. Hugenii ad Auctores Diarii Pariſienſis, datis Hagæ 8. Funii 1684. quæ continent ejus reſponſionem ad exceptio-nem Dni. Abbatis Catelani, de cen-tro Oſcillationis.
[178.] IX. Reſponſio Dni. Abbatis Catelani ad literas Dni. Bernoulli de Controverſia ſua cum Dno. Hu-genio de centro Oſcillationis .
[179.] X. Dn. Bernouillii narratio controverſiæ inter Dn. Hugenium & Abbatem Catelanum agitatæ de Centro Oſcillationis, quæ loco Anim-adverſionis eſſe poterit in Reſpon-ſionem Dn. Catelani. Excerpta ex Litteris Dn. Bernoullii Lipſiam miſſis.
[180.] XI. Litteræ Dni Marchionis de l’Hôpital ad Dum Huge-nium, in quibus contendit, ſeregulam hujus Au-ctoris de Centro oſcillationis penduli compoſiti demonſtrare per cauſam Phyſicam, & re-ſpondere ſimul Dno Bernoulli.
[181.] XII. Obſervationes Dni Hugenii in liter as præcedentes & in relationem Dni Bernoulli, cujus in iis fit mentio.
[182.] FINIS.
[183.] MACHINÆ QUÆDAM, ET VARIA CIRCA MECHANICAM.
[184.] MACHINÆ QUÆDAM, ET VARIA CIRCA MECHANICAM. I. Excerpta ex Literis Domini Hugenii, novam quan-dam Inventionem Horologiorum exactiſſino-rum ac portatilium concernentibus.
[185.] II. Nova Libella, Teleſcopio inſtructa, propriam ſecum ferens probationem, & quæ in unica ſtatione verificatur, & rectificatur.
[186.] Rectificationis Libellæ Demonſtratio.
[187.] III. Aſtroſcopia Compendiaria, Tubi Optici molimine liberata.
[188.] AUCTARIUM.
[189.] IV. Excerpta ex literis Dni Hugenii de novâ methodo conſtruendi Barometrum.
[190.] V. Nova vis movens mediante pulvere nitrato & aëre.
[191.] VI. Demonſtratio Æquilibrii bilancis.
[192.] VII. De potentiis fila funesve trahentibus.
[193.] VIII. Solitio problematis a G G. Leibnitio propoſiti in diario (cui titulus Nouvelles de la Republi-que des Lettres) menſis Sept. 1687. PROBLEMA.
[194.] Solutio.
[195.] IX. Chriſtiani Hugenii, Solutio Problematis de linea in quam flexile ſe pondere pro-prio curvat.
[196.] X. Hugenii Annotationes in librum Pariſiis 1689. editum, de Manuaria Nautica.
[197.] XI. Reſponſum Dni Renaldi ad Dominum Hugenium.
[198.] XII. Exceptio Dni Hugenii ad Reſponſum Dni Renaldi.
[199.] FINIS.
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              <pb o="212" file="0290" n="317" rhead="EXCERPTA EX LIT. CHRIST. HUGENII."/>
            ſit, ut deliberarent de eo quod faciendum eſſet. </s>
            <s xml:id="echoid-s4703" xml:space="preserve">Ubi verò vidiſſet
              <lb/>
            commentarios, & </s>
            <s xml:id="echoid-s4704" xml:space="preserve">ephemerides, quas illi, qui præerant 3 iis na-
              <lb/>
            vibus proferebant, & </s>
            <s xml:id="echoid-s4705" xml:space="preserve">conjecturam de loco in quo verſaban-
              <lb/>
            tur; </s>
            <s xml:id="echoid-s4706" xml:space="preserve">cumque poſt longas deliberationes, omnes cenſerent, præ-
              <lb/>
            ſtare ad Barbadas trajicere, quam oras Africæ quærere,
              <lb/>
            quia ventus longe citius eos illuc transferret, dixit ille: </s>
            <s xml:id="echoid-s4707" xml:space="preserve">Viri
              <lb/>
            computatio veſtra cum noſtra minimè convenit; </s>
            <s xml:id="echoid-s4708" xml:space="preserve">nam ſecun-
              <lb/>
            dum Horologia mea proceſſi, unde concludo, vos errare
              <lb/>
            omnes, ſtatuendo nos multò longius Occidentem verſus eſſe pro-
              <lb/>
            greſſos, quam revera ſumus, unius error eſt 120 milliaria, alîus
              <lb/>
            100, alîus 80: </s>
            <s xml:id="echoid-s4709" xml:space="preserve">verùm ita Horologiis confido ut hac vice experi-
              <lb/>
            mentum facere velim; </s>
            <s xml:id="echoid-s4710" xml:space="preserve">nam ſecundum meam computationem in-
              <lb/>
            ſula del Fuogo (quæ una eſt ex inſulis Capoverdæ ſeu promontorii
              <lb/>
            Heſperii,) non ultra 30 milliaria a nobis abeſt; </s>
            <s xml:id="echoid-s4711" xml:space="preserve">Ibi nobis a-
              <lb/>
            quam poſſumus curare, & </s>
            <s xml:id="echoid-s4712" xml:space="preserve">eo curſum dirigere conſtitui; </s>
            <s xml:id="echoid-s4713" xml:space="preserve">Si
              <lb/>
            vera eſt computatio, multum præſtabit nobis hanc viam in-
              <lb/>
            gredi, quam a vobis oſtenſam; </s>
            <s xml:id="echoid-s4714" xml:space="preserve">ſin evenerit aliter, biduum
              <lb/>
            tantum producemus navigationem, ſatisque aquæ interim ſu-
              <lb/>
            pererit, ut Barbadas perveniamus; </s>
            <s xml:id="echoid-s4715" xml:space="preserve">quoniam tanta mihi in
              <lb/>
            navi copia eſt, ut vobis defectum veſtrum ſupplere queam;
              <lb/>
            </s>
            <s xml:id="echoid-s4716" xml:space="preserve">Addens quem curſum tenere vellet, mandavit ut ſequerentur
              <lb/>
            ipſum cæteri. </s>
            <s xml:id="echoid-s4717" xml:space="preserve">Poſtero mane detegebant iuſulam del Fuogo, & </s>
            <s xml:id="echoid-s4718" xml:space="preserve">
              <lb/>
            opportuno illuc advenêre tempore, uti prædixerat: </s>
            <s xml:id="echoid-s4719" xml:space="preserve">Cogor hic
              <lb/>
            deſinere, communicaturus tecum reliquos omnes caſus peculia-
              <lb/>
            res, quos ſcriptis mandare promiſit, quamprimum illos nactus
              <lb/>
            fuero.</s>
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          </p>
          <p>
            <s xml:id="echoid-s4721" xml:space="preserve">Nota, hæc Horologia fuiſſe ex primo Pendulorum gene-
              <lb/>
            re, nec tam exacta quam recentiora.</s>
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