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-div1200" type="section" level="1" n="291">
          <pb o="353" file="0369" n="369" rhead="LIBER TERTIVS."/>
          <figure number="245">
            <image file="0369-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0369-01"/>
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          <note position="left" xml:space="preserve">10</note>
          <note position="left" xml:space="preserve">20</note>
          <note position="left" xml:space="preserve">30</note>
        </div>
        <div xml:id="echoid-div1202" type="section" level="1" n="292">
          <head xml:id="echoid-head302" xml:space="preserve">DE HOROLOGIIS
            <lb/>
          ad Horizontem inclinatis.</head>
          <note position="left" xml:space="preserve">40</note>
        </div>
        <div xml:id="echoid-div1203" type="section" level="1" n="293">
          <head xml:id="echoid-head303" xml:space="preserve">PROBLEMA 25. PROPOSITIO 25.</head>
          <p>
            <s xml:id="echoid-s23531" xml:space="preserve">HOROLOGIVM Aſtronomicum, quod inclinatum eſt ad
              <lb/>
            Horizontem; </s>
            <s xml:id="echoid-s23532" xml:space="preserve">id eſt, lineas horarum à meridie, vel media nocte in pla-
              <lb/>
            no, quod circulo cuipiam maximo ad Horizontem inclinato, & </s>
            <s xml:id="echoid-s23533" xml:space="preserve">ad Me-
              <lb/>
            ridianum recto ęquidiſtat, deſcribere.</s>
            <s xml:id="echoid-s23534" xml:space="preserve"/>
          </p>
          <note position="right" xml:space="preserve">Horologii A-
            <lb/>
          ſtronomici ad
            <lb/>
          Horizontẽ in-
            <lb/>
          clinati deſcri-
            <lb/>
          ptio ſex præc@-
            <lb/>
          ptis con tenta.</note>
          <p>
            <s xml:id="echoid-s23535" xml:space="preserve">QVONIAM ſex modis ſe habere poteſt planum, quod ad Horizontem eſt inclinatum, & </s>
            <s xml:id="echoid-s23536" xml:space="preserve">
              <lb/>
              <note position="left" xlink:label="note-0369-06" xlink:href="note-0369-06a" xml:space="preserve">50</note>
            rectum ad Meridianum, vt mox explicabimus, vniuerſam doctrinam de horologiis in huiuſmodi
              <lb/>
            plano deſcribendis ſex etiam præceptis complectemur, vt facilius res ipſa percipiatur.</s>
            <s xml:id="echoid-s23537" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div1205" type="section" level="1" n="294">
          <head xml:id="echoid-head304" xml:space="preserve">PRÆCEPTVM I.</head>
          <p>
            <s xml:id="echoid-s23538" xml:space="preserve">QVANDO planum ex parte Septentrionis inclinatum, cuius ſcilicet ſuperior facies meri-
              <lb/>
              <note position="right" xlink:label="note-0369-07" xlink:href="note-0369-07a" xml:space="preserve">Quando plani
                <lb/>
              inclinatio ex
                <lb/>
              parte Septen-
                <lb/>
              trionis altitudi
                <lb/>
              ni poli eſt ęqua
                <lb/>
              lis.</note>
            diem reſpicit, inclinationem habet altitudini poli æqualem, non differet eius horologium à Pola-
              <lb/>
            ri horologio, quod propoſ. </s>
            <s xml:id="echoid-s23539" xml:space="preserve">37. </s>
            <s xml:id="echoid-s23540" xml:space="preserve">ſuperioris libri deſcripſimus.</s>
            <s xml:id="echoid-s23541" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div1207" type="section" level="1" n="295">
          <head xml:id="echoid-head305" xml:space="preserve">PRAECEPTVM II.</head>
          <p>
            <s xml:id="echoid-s23542" xml:space="preserve">CVM verò idem planum inclinationem habuerit altitudine poli minorem, detrahenda erit
              <lb/>
              <note position="right" xlink:label="note-0369-08" xlink:href="note-0369-08a" xml:space="preserve">Quando incli-
                <lb/>
              natio plani ex
                <lb/>
              parte Septen-
                <lb/>
              trionis altitudi
                <lb/>
              ne poli minor
                <lb/>
              eſt.</note>
            inclinatio ab altitudine poli: </s>
            <s xml:id="echoid-s23543" xml:space="preserve">relinquetur enim altitudo poli ſupra planum inclinatum: </s>
            <s xml:id="echoid-s23544" xml:space="preserve">De
              <unsure/>
            inde
              <lb/>
            ad hanc poli altitudinem inuentam horologium horizontale deſcribendum, vt tradidimus pro-
              <lb/>
            poſ. </s>
            <s xml:id="echoid-s23545" xml:space="preserve">1. </s>
            <s xml:id="echoid-s23546" xml:space="preserve">ſuperioris lib. </s>
            <s xml:id="echoid-s23547" xml:space="preserve">Quod ita collocandũ erit, vt linea æquinoctialis æquidiſtet lineæ rectæ, </s>
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