Clavius, Christoph, Gnomonices libri octo, in quibus non solum horologiorum solariu[m], sed aliarum quo[quam] rerum, quae ex gnomonis umbra cognosci possunt, descriptiones geometricè demonstrantur

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        <div xml:id="echoid-div869" type="section" level="1" n="209">
          <p>
            <s xml:id="echoid-s17034" xml:space="preserve">
              <pb o="253" file="0269" n="269" rhead="LIBER SECVNDVS."/>
            arcus diurnus tropici ♑, rurſumq́; </s>
            <s xml:id="echoid-s17035" xml:space="preserve">circulus F G H I, in partes 24. </s>
            <s xml:id="echoid-s17036" xml:space="preserve">ęquales ſecetur, initio factoà ter
              <lb/>
            mino occidẽtali arcus diurni tropici ♑, vt à puncto E, in orientali horologio, & </s>
            <s xml:id="echoid-s17037" xml:space="preserve">à D, in occidẽrali,
              <lb/>
            inueniemus in tropico ♑, horas Italicas. </s>
            <s xml:id="echoid-s17038" xml:space="preserve">Itaq; </s>
            <s xml:id="echoid-s17039" xml:space="preserve">ſi horæ inter ſe reſpõdentes in tropicis iungantur li-
              <lb/>
            neis rectis, deſcriptum erit horologiũ Italicũ. </s>
            <s xml:id="echoid-s17040" xml:space="preserve">Tranſibunt autem neceſſario hæ lineæ horariæ per
              <lb/>
              <figure xlink:label="fig-0269-01" xlink:href="fig-0269-01a" number="188">
                <image file="0269-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0269-01"/>
              </figure>
              <note position="left" xlink:label="note-0269-01" xlink:href="note-0269-01a" xml:space="preserve">10</note>
              <note position="left" xlink:label="note-0269-02" xlink:href="note-0269-02a" xml:space="preserve">20</note>
              <note position="left" xlink:label="note-0269-03" xlink:href="note-0269-03a" xml:space="preserve">30</note>
            puncta horarum à meridie, vel media nocte in linea æquinoctiali, vt hora 9. </s>
            <s xml:id="echoid-s17041" xml:space="preserve">Italica per 3. </s>
            <s xml:id="echoid-s17042" xml:space="preserve">à me-
              <lb/>
              <note position="left" xlink:label="note-0269-04" xlink:href="note-0269-04a" xml:space="preserve">40</note>
            dia nocte; </s>
            <s xml:id="echoid-s17043" xml:space="preserve">10. </s>
            <s xml:id="echoid-s17044" xml:space="preserve">per 4. </s>
            <s xml:id="echoid-s17045" xml:space="preserve">à med. </s>
            <s xml:id="echoid-s17046" xml:space="preserve">noc. </s>
            <s xml:id="echoid-s17047" xml:space="preserve">& </s>
            <s xml:id="echoid-s17048" xml:space="preserve">20. </s>
            <s xml:id="echoid-s17049" xml:space="preserve">per 2. </s>
            <s xml:id="echoid-s17050" xml:space="preserve">à meridie, &</s>
            <s xml:id="echoid-s17051" xml:space="preserve">c. </s>
            <s xml:id="echoid-s17052" xml:space="preserve">vt perſpicuum eſt ex tabula propoſ.
              <lb/>
            </s>
            <s xml:id="echoid-s17053" xml:space="preserve">19. </s>
            <s xml:id="echoid-s17054" xml:space="preserve">ſuperioris lib. </s>
            <s xml:id="echoid-s17055" xml:space="preserve">cui titulus eſt, ÆQVINOCTIALIS LINEA. </s>
            <s xml:id="echoid-s17056" xml:space="preserve">quòd ſi aliquæ horæ
              <lb/>
            ab occaſu in alterutro tropicorum non habeant in altero tropico puncta reſpondentia, ducendæ
              <lb/>
            erunt illæ per horas reſpondentes in æquinoctiali linea, prout ex tabula dicta propoſ. </s>
            <s xml:id="echoid-s17057" xml:space="preserve">19. </s>
            <s xml:id="echoid-s17058" xml:space="preserve">ſuperio-
              <lb/>
            ris lib. </s>
            <s xml:id="echoid-s17059" xml:space="preserve">colligitur. </s>
            <s xml:id="echoid-s17060" xml:space="preserve">Vt in horologio orientali hora 16. </s>
            <s xml:id="echoid-s17061" xml:space="preserve">& </s>
            <s xml:id="echoid-s17062" xml:space="preserve">hora 17. </s>
            <s xml:id="echoid-s17063" xml:space="preserve">ductæ ſunt per puncta in tropico
              <lb/>
            ♑, inuenta, & </s>
            <s xml:id="echoid-s17064" xml:space="preserve">per horam 10. </s>
            <s xml:id="echoid-s17065" xml:space="preserve">& </s>
            <s xml:id="echoid-s17066" xml:space="preserve">11. </s>
            <s xml:id="echoid-s17067" xml:space="preserve">à media nocte in linea æquinoctiali, quia in tropico ♋, non ha
              <lb/>
            bent puncta reſpondentia. </s>
            <s xml:id="echoid-s17068" xml:space="preserve">Linea autem horæ 18. </s>
            <s xml:id="echoid-s17069" xml:space="preserve">ducenda eſt per punctum in tropico ♑, inuen
              <lb/>
            tum parellela lineæ æquinoctiali, vt conſtat. </s>
            <s xml:id="echoid-s17070" xml:space="preserve">Cum enim circuli horæ 6. </s>
            <s xml:id="echoid-s17071" xml:space="preserve">& </s>
            <s xml:id="echoid-s17072" xml:space="preserve">18. </s>
            <s xml:id="echoid-s17073" xml:space="preserve">ab ortu, vel occaſu
              <lb/>
            cum Aequatore eandem habeant ſectionem communem, per propoſ. </s>
            <s xml:id="echoid-s17074" xml:space="preserve">16. </s>
            <s xml:id="echoid-s17075" xml:space="preserve">ſuperioris lib. </s>
            <s xml:id="echoid-s17076" xml:space="preserve">Item ean-
              <lb/>
            dem cum Meridiano, per propoſ. </s>
            <s xml:id="echoid-s17077" xml:space="preserve">17. </s>
            <s xml:id="echoid-s17078" xml:space="preserve">eiuſdem lib. </s>
            <s xml:id="echoid-s17079" xml:space="preserve">ſuperioris, habeant autem duo illi circuli vnam
              <lb/>
              <note position="left" xlink:label="note-0269-05" xlink:href="note-0269-05a" xml:space="preserve">50</note>
            duntaxat communem ſectionem; </s>
            <s xml:id="echoid-s17080" xml:space="preserve">fit, vt duo illi circuli, & </s>
            <s xml:id="echoid-s17081" xml:space="preserve">Aequator, Meridianusq́; </s>
            <s xml:id="echoid-s17082" xml:space="preserve">habeant vnã
              <lb/>
            & </s>
            <s xml:id="echoid-s17083" xml:space="preserve">eandem communem ſectionem, nempe eam, quæ communis ſectio eſt quoque Meridiani, & </s>
            <s xml:id="echoid-s17084" xml:space="preserve">
              <lb/>
            A equatoris. </s>
            <s xml:id="echoid-s17085" xml:space="preserve">Cum ergo planum horologii Meridiani huic ſectioni communi æquidiſtet, nempe
              <lb/>
            ipſi Meridiano circulo; </s>
            <s xml:id="echoid-s17086" xml:space="preserve">erunt per propoſ. </s>
            <s xml:id="echoid-s17087" xml:space="preserve">18. </s>
            <s xml:id="echoid-s17088" xml:space="preserve">ſuperioris lib. </s>
            <s xml:id="echoid-s17089" xml:space="preserve">reliquorum circulorum ſectiones
              <lb/>
            cum plano horologii, cuiuſmodi ſunt linea horæ 6. </s>
            <s xml:id="echoid-s17090" xml:space="preserve">& </s>
            <s xml:id="echoid-s17091" xml:space="preserve">linea horæ 18. </s>
            <s xml:id="echoid-s17092" xml:space="preserve">ab ortu, vel occaſu, & </s>
            <s xml:id="echoid-s17093" xml:space="preserve">linea
              <lb/>
            æquinoctialis, inter ſe parallelæ.</s>
            <s xml:id="echoid-s17094" xml:space="preserve"/>
          </p>
          <note position="right" xml:space="preserve">Alia deſcriptio
            <lb/>
          eiuſdem horo-
            <lb/>
          logii Italici Me
            <lb/>
          ridiani per ar-
            <lb/>
          cus diurnos, no
            <lb/>
          cturnosq̃
            <unsure/>
          ue ho-
            <lb/>
          rarũ 14. & 10.
            <lb/>
          Item 24.</note>
          <p>
            <s xml:id="echoid-s17095" xml:space="preserve">PER binos arcus diurnos, nocturnosq́ue horarum 14. </s>
            <s xml:id="echoid-s17096" xml:space="preserve">& </s>
            <s xml:id="echoid-s17097" xml:space="preserve">10. </s>
            <s xml:id="echoid-s17098" xml:space="preserve">deſcribetur idem horologium
              <lb/>
            Italicum, vt in horologio horizontali, & </s>
            <s xml:id="echoid-s17099" xml:space="preserve">Verticali declarauimus. </s>
            <s xml:id="echoid-s17100" xml:space="preserve">Idem fiet beneficio parallelo-
              <lb/>
            rum duorum, quorum vnus eſt ſemper apparentium maximus, vel arcus diurnus horarum 24. </s>
            <s xml:id="echoid-s17101" xml:space="preserve">al-
              <lb/>
            ter verò maximus perpetuo deliteſcentium, ſeu arcus nocturnus horarum 24. </s>
            <s xml:id="echoid-s17102" xml:space="preserve">ſi eorum hyperbolæ
              <lb/>
            deſcribantur in horologio. </s>
            <s xml:id="echoid-s17103" xml:space="preserve">Nam lineæ horarum ab occaſu Solis, vel ortu tangunt dictas </s>
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