Vitruvius, Marci Vitruvii Pollionis De architectura libri decem : ope codicis Guelferbytani, editionis principis, ceterorumque subsidiorum recensuit, et glossario in quo vocabula artis propria Germ. Ital. Gall. et Angl. explicantur, 1800

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        <div xml:id="echoid-div193" type="section" level="1" n="104">
          <p>
            <s xml:id="echoid-s3934" xml:space="preserve">
              <pb o="224" file="0248" n="248" rhead="M. VITR UVII P. DE ARCHITECTURA"/>
            aut creſcentias cuneorum adjectus aut exceptus in ſingulis diebus et men-
              <lb/>
            ſibus, perſicere cogit. </s>
            <s xml:id="echoid-s3935" xml:space="preserve">Praecluſiones aquarum ad temperandum ita ſunt
              <lb/>
            conſtitutae. </s>
            <s xml:id="echoid-s3936" xml:space="preserve">Metae ſiunt duae, una ſolida altera cava, ex torno ita per-
              <lb/>
            ſectae, ut alia in aliam inire convenireque poſſit: </s>
            <s xml:id="echoid-s3937" xml:space="preserve">et eadem regula laxatio
              <lb/>
            earum aut coartatio efficiat aut vehementem aut lenem in ea vaſa aquae
              <lb/>
            inſluentem curſum. </s>
            <s xml:id="echoid-s3938" xml:space="preserve">Ita his rationibus et machinatione ex aqua compo-
              <lb/>
            nuntur horologiorum ad hibernum uſum collocationes. </s>
            <s xml:id="echoid-s3939" xml:space="preserve">Sin autem cu-
              <lb/>
            neorum adjectionibus et detractionibus correptiones dierum, aut creſcen-
              <lb/>
            tiae non probabuntur; </s>
            <s xml:id="echoid-s3940" xml:space="preserve">quod cunei ſaepiſſime vitia ſaciunt; </s>
            <s xml:id="echoid-s3941" xml:space="preserve">ſic erit expli-
              <lb/>
            candum. </s>
            <s xml:id="echoid-s3942" xml:space="preserve">In columella horae ex analemmatis transverſe deſcribantur,
              <lb/>
            menſtruaeque lineae in columella ſignentur, eaque columella verſatilis
              <lb/>
            perſiciatur; </s>
            <s xml:id="echoid-s3943" xml:space="preserve">uti ad ſigillum virgulamque (qua virgula egrediens ſigil- lum oſtendit horas) columna verſando continenter, ſuis cujusque menſibus
              <lb/>
            brevitates et creſcentias faciat horarum.</s>
            <s xml:id="echoid-s3944" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3945" xml:space="preserve">Fiunt etiam alio genere horologia hiberna, quae anaporica dicun-
              <lb/>
            tur, perſiciunturque rationibus his. </s>
            <s xml:id="echoid-s3946" xml:space="preserve">Horae diſponuntur ex virgulis aene-
              <lb/>
            is, ex analemmatos deſcriptione, ab centro diſpoſitae in ſronte. </s>
            <s xml:id="echoid-s3947" xml:space="preserve">In ea
              <lb/>
            circuli ſunt circumdati, menſtrua ſpatia ſinientes. </s>
            <s xml:id="echoid-s3948" xml:space="preserve">Poſt has virgulas tym-
              <lb/>
            panum collocetur, in quo deſcriptus et depictus ſit mundus ſigniferque
              <lb/>
            circulus, deſcriptioque duodecim coeleſtium ſignorum ſit ſigurata, cujus
              <lb/>
            e centro deformatur cujuslibet ſigni ſpatium, unum majus, alterum mi-
              <lb/>
            nus. </s>
            <s xml:id="echoid-s3949" xml:space="preserve">Poſteriori autem parti tympano medio, axis verſatilis eſt incluſus,
              <lb/>
            inque eo axi aenea mollis catena eſt involuta, ex qua pendet ex una par-
              <lb/>
            te phellos ſive tympanum, quod ab aqua ſublevatur, ex altera aequo
              <lb/>
            pondere phelli ſacoma ſaburrale. </s>
            <s xml:id="echoid-s3950" xml:space="preserve">Ita quantum ab aqua phellos ſubleva-
              <lb/>
            tur, tantum ſaburrae pondus infra deducens verſat axem, axis autem tym-
              <lb/>
            panum; </s>
            <s xml:id="echoid-s3951" xml:space="preserve">cujus tympani verſatio, alias efficit uti major pars circuli ſignife-
              <lb/>
              <note symbol="8)" position="foot" xlink:label="note-0248-01" xlink:href="note-0248-01a" xml:space="preserve">Sic Cod. G. et F. pro cujus virgulae.</note>
            </s>
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