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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            <s xml:id="echoid-s17081" xml:space="preserve">
              <pb o="675" file="0691" n="692" rhead="ULTRAJECTINÆ ANN. MDCCXXVIII."/>
            intra minuti ſpatium conſcribi queant; </s>
            <s xml:id="echoid-s17082" xml:space="preserve">ſed operæ pretium erit
              <lb/>
            Ephemeridum Tabulam paulum clarius explicuiſſe.</s>
            <s xml:id="echoid-s17083" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s17084" xml:space="preserve">Eſt Tabula in duodecim diviſa partes, quot menſibus conſtat
              <lb/>
            annus, horum nomina lateraliter ad ſiniſtram appoſita ſunt: </s>
            <s xml:id="echoid-s17085" xml:space="preserve">de-
              <lb/>
            currit ſpatium, cuilibet menſi dicatum, horizontaliter a dextra ad
              <lb/>
            ſiniſtram, diviſum in dies, qui menſem conſtituunt: </s>
            <s xml:id="echoid-s17086" xml:space="preserve">ſinguli a ſe
              <lb/>
            diſtinguuntur lineæ craſſioris ope perpendiculariter deorſum ductæ;
              <lb/>
            </s>
            <s xml:id="echoid-s17087" xml:space="preserve">intra binas craſſiores duæ continentur ſubtiliores illis parallelæ,
              <lb/>
            diem dividentes trifariam; </s>
            <s xml:id="echoid-s17088" xml:space="preserve">quarum prima diviſio, ſcilicet quæ ma-
              <lb/>
            xime ſiniſtra deſtinatur obſervationibus, quæ ab hora 12 nocturna
              <lb/>
            uſque ad octavam antimeridianam evenerunt, conſcribendis; </s>
            <s xml:id="echoid-s17089" xml:space="preserve">me-
              <lb/>
            dia continet quæ ab hoc tempore uſque ad quartam poſtmeridiem
              <lb/>
            contigerunt, pars dextra & </s>
            <s xml:id="echoid-s17090" xml:space="preserve">tertia recipit, quæ ab hac hora uſque
              <lb/>
            ad mediam noctem obſervata ſunt; </s>
            <s xml:id="echoid-s17091" xml:space="preserve">ita accuratiſſime tempus cujus-
              <lb/>
            vis phænomeni Aërei ſcribi noſcique poteſt.</s>
            <s xml:id="echoid-s17092" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s17093" xml:space="preserve">Anterius ad lævam conſpiciuntur numeri deorſum currentes,
              <lb/>
            30, 10, 8, 6, 4, 2, 29. </s>
            <s xml:id="echoid-s17094" xml:space="preserve">10, 8, 6, 4, 2, 28. </s>
            <s xml:id="echoid-s17095" xml:space="preserve">deſignantes pollices 30, aut 29,
              <lb/>
            aut 28, ſimul cum lineolis intermediis, quæ ſunt {1/12} pollicis; </s>
            <s xml:id="echoid-s17096" xml:space="preserve">his
              <lb/>
            numeris altitudo Barometri definitur, puncto deſignanda reſpon-
              <lb/>
            dente numero; </s>
            <s xml:id="echoid-s17097" xml:space="preserve">punctorum acervum ſi conſideras, lineam miris
              <lb/>
            flexibus decurrentem per totam menſis longitudinem habes, in
              <lb/>
            qua quænam altitudo Mercurii in tubo ter quolibet die fuerit, il-
              <lb/>
            lico ſpectatur: </s>
            <s xml:id="echoid-s17098" xml:space="preserve">quælibet tamen diviſio complectitur motum Mer-
              <lb/>
            curii {1/12} pollicis æqualem.</s>
            <s xml:id="echoid-s17099" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s17100" xml:space="preserve">Menſes â ſe invicem diſtinguuntur latiori quodam ſpatio, deſti-
              <lb/>
            nato excipiendis ſignis ſuo præfixis diei, & </s>
            <s xml:id="echoid-s17101" xml:space="preserve">cæli ſtatum indicanti-
              <lb/>
            bus: </s>
            <s xml:id="echoid-s17102" xml:space="preserve">Lineolæ breves interruptæ, horizontaliter exporrectæ cælum
              <lb/>
            nubibus obductum ſignificant: </s>
            <s xml:id="echoid-s17103" xml:space="preserve">Lineolæ ſurſum deorſumque cur-
              <lb/>
            rentes, pluviam: </s>
            <s xml:id="echoid-s17104" xml:space="preserve">quinque puncta, quorum unum eſt in medio, ne-
              <lb/>
            bulam. </s>
            <s xml:id="echoid-s17105" xml:space="preserve">Sex puncta quæ ordine paria deorſum ducuntur, Grandi-
              <lb/>
            nem, parvæ cruces, Nivem: </s>
            <s xml:id="echoid-s17106" xml:space="preserve">omnibus abſentibus ſignis cælum ſe-
              <lb/>
            renum notatur.</s>
            <s xml:id="echoid-s17107" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s17108" xml:space="preserve">Quadrata ſpatia, ſupremam cujusvis menſis ſeriem componentia,
              <lb/>
            numeros continent, qui altitudinem Thermoſcopii Fahrenheytii
              <lb/>
            exprimunt: </s>
            <s xml:id="echoid-s17109" xml:space="preserve">hi obſervati ſunt hora 7 matutina: </s>
            <s xml:id="echoid-s17110" xml:space="preserve">12 meridiana: </s>
            <s xml:id="echoid-s17111" xml:space="preserve">& </s>
            <s xml:id="echoid-s17112" xml:space="preserve">11
              <lb/>
            veſpertina.</s>
            <s xml:id="echoid-s17113" xml:space="preserve"/>
          </p>
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