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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          <p>
            <s xml:id="echoid-s21108" xml:space="preserve">
              <pb o="314" file="0330" n="330" rhead="GNOMONICES"/>
            ex C, linea C A, radio Aequatoris I G, parallela: </s>
            <s xml:id="echoid-s21109" xml:space="preserve">hæc enim illam horam referet; </s>
            <s xml:id="echoid-s21110" xml:space="preserve">quemadmodum
              <lb/>
            & </s>
            <s xml:id="echoid-s21111" xml:space="preserve">in horizontali horologio, & </s>
            <s xml:id="echoid-s21112" xml:space="preserve">in Verticali, quia linea horæ 6. </s>
            <s xml:id="echoid-s21113" xml:space="preserve">æquinoctialem lineam non ſecat, ſed
              <lb/>
            ei parallela eſt, ducta eſt ex H, in poſteriori figura propoſ. </s>
            <s xml:id="echoid-s21114" xml:space="preserve">2. </s>
            <s xml:id="echoid-s21115" xml:space="preserve">& </s>
            <s xml:id="echoid-s21116" xml:space="preserve">14. </s>
            <s xml:id="echoid-s21117" xml:space="preserve">ſuperioris libri, recta H V, radi@
              <lb/>
            Aequatoris parallela pro hora 6.</s>
            <s xml:id="echoid-s21118" xml:space="preserve"/>
          </p>
          <figure number="223">
            <image file="0330-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0330-01"/>
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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>
          <p>
            <s xml:id="echoid-s21119" xml:space="preserve">VT autem lineas habeamus aliarum horarum, quæ æquinoctialem lineam neque ſecant, ne-
              <lb/>
              <note position="left" xlink:label="note-0330-04" xlink:href="note-0330-04a" xml:space="preserve">Quomodo li-
                <lb/>
              neæ horariæ,
                <lb/>
              quæ lineã æqui
                <lb/>
              nectialem non
                <lb/>
              ſecant, ducãtut
                <lb/>
              in figura radio
                <lb/>
              rum proxime
                <lb/>
              conſtructa.</note>
              <note position="left" xlink:label="note-0330-05" xlink:href="note-0330-05a" xml:space="preserve">40</note>
            que eidem parallelæ ſunt, vt ſunt illæ omnes, quæ poſtquam lineam æquinoctialem ſecuerũt, pro-
              <lb/>
            ductæ ſunt vltra centrum C, (quales in noſtro horologio declinante ſunt horæ 4. </s>
            <s xml:id="echoid-s21120" xml:space="preserve">5. </s>
            <s xml:id="echoid-s21121" xml:space="preserve">6. </s>
            <s xml:id="echoid-s21122" xml:space="preserve">& </s>
            <s xml:id="echoid-s21123" xml:space="preserve">cæteræ
              <lb/>
            poſt meridiem; </s>
            <s xml:id="echoid-s21124" xml:space="preserve">item 1. </s>
            <s xml:id="echoid-s21125" xml:space="preserve">2. </s>
            <s xml:id="echoid-s21126" xml:space="preserve">& </s>
            <s xml:id="echoid-s21127" xml:space="preserve">3. </s>
            <s xml:id="echoid-s21128" xml:space="preserve">poſt mediam noctem; </s>
            <s xml:id="echoid-s21129" xml:space="preserve">hæ etenim omnes vltra centrum C, produ-
              <lb/>
            ctæ ſunt, & </s>
            <s xml:id="echoid-s21130" xml:space="preserve">earum reſpondentes citra centrum C, lineam æquinoctialem ſecant, quales ſunt 4. </s>
            <s xml:id="echoid-s21131" xml:space="preserve">5.
              <lb/>
            </s>
            <s xml:id="echoid-s21132" xml:space="preserve">6. </s>
            <s xml:id="echoid-s21133" xml:space="preserve">& </s>
            <s xml:id="echoid-s21134" xml:space="preserve">cæteræ poſt mediam noctem. </s>
            <s xml:id="echoid-s21135" xml:space="preserve">Item 1. </s>
            <s xml:id="echoid-s21136" xml:space="preserve">2. </s>
            <s xml:id="echoid-s21137" xml:space="preserve">& </s>
            <s xml:id="echoid-s21138" xml:space="preserve">3. </s>
            <s xml:id="echoid-s21139" xml:space="preserve">poſt meridiem) hanc viam ſequemur. </s>
            <s xml:id="echoid-s21140" xml:space="preserve">Per C,
              <lb/>
            centrum horologii ducemus rectam C d, lineæ æquinoctiali parallelam, ſi nulla linea horaria ei
              <lb/>
            æquidiſtat, & </s>
            <s xml:id="echoid-s21141" xml:space="preserve">per C, punctum figuræ proximè conſtructæ rectam C A, emittemus radio Aequa-
              <lb/>
            toris parallelam, quæ illi parallelæ C d, vel certè horæ illi, (ſi qua eſt) quæ lineæ æquinoctiali æqui
              <lb/>
            diſtat, reſpondebit, vt proximè docuimus. </s>
            <s xml:id="echoid-s21142" xml:space="preserve">Referet autem linea C d, in horologio circulum illũ
              <lb/>
            horarium, ſ
              <unsure/>
            eu circulum maximum per polos mundi ductum, cuius communis ſectio in circulo
              <lb/>
              <note position="left" xlink:label="note-0330-06" xlink:href="note-0330-06a" xml:space="preserve">50</note>
            ex L, deſcripto per centrum L, tranſiens æquinoctiali lineæ æquidiſtat, lineamq́ue ſtyliad rectos
              <lb/>
            angulos ſecat, vt in præcedenti propoſ. </s>
            <s xml:id="echoid-s21143" xml:space="preserve">oſtendimus. </s>
            <s xml:id="echoid-s21144" xml:space="preserve">Poſt hæc, quoniam quælibet linea horaria cũ
              <lb/>
            C d, ad verticem C, æquales angulos facit, transferemus lineas ex C, prodeuntes, radiumq́; </s>
            <s xml:id="echoid-s21145" xml:space="preserve">Aequa
              <lb/>
              <note position="left" xlink:label="note-0330-07" xlink:href="note-0330-07a" xml:space="preserve">15. primi.</note>
            toris ſecantes, ad alteram partem rectæ C A, beneſicio arcus cuiuſdam circuli ex C, deſcripti, ita vt
              <lb/>
            lineæ hinc inde æqualiter à C A, diſtantes æquales arcus illius circuli ex C, deſcripti, & </s>
            <s xml:id="echoid-s21146" xml:space="preserve">angulos
              <lb/>
            æquales ad C, comprehendant cum recta C A. </s>
            <s xml:id="echoid-s21147" xml:space="preserve">Nam hæ lineæ ita translatæ reſpondebunt illis ho
              <lb/>
            ris, quæ æquinoctialem lineam non ſecant, ſed vltra centrũ C, excurrunt, ita vt binæ lineæ æqua-
              <lb/>
            li interuallo à recta C A, remotæ pertineant ad binas horas eiuſdem numeri, quarum illa, quæ ra-
              <lb/>
            dium Aequatoris ſecat, vel à C, verſus radium Aequatoris ducitur, referat horam, quæ lineã ęqui-
              <lb/>
            noctialem interſecat in horologio, alia verò ad alteram partem rectæ C A, translata eidem horæ
              <lb/>
            reſpondeat vltra centrum C, productæ, quæ æquinoctialem lineam non ſecat: </s>
            <s xml:id="echoid-s21148" xml:space="preserve">Non ſecus ac in </s>
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