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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              <pb o="39" file="0065" n="65" rhead="LIBER II. CAPUT VI."/>
            Veſuvium montem, quod commixtum cum calce et caemento, non mo-
              <lb/>
            do ceteris aedificiis praeſtat ſirmitates, ſed etiam moles quae conſtruun-
              <lb/>
            tur in mari, ſub aqua ſolideſcunt. </s>
            <s xml:id="echoid-s1279" xml:space="preserve">Hoc autem ſieri hac ratione videtur,
              <lb/>
            quod ſub his montibus et terra, ferventes ſunt ſontes crebri, qui non
              <lb/>
            eſſent, ſi non in imo haberent aut de ſulſure aut alumine aut bitumine
              <lb/>
            ardentes maximos ignes. </s>
            <s xml:id="echoid-s1280" xml:space="preserve">Igitur penitus ignis et flammae vapor per in-
              <lb/>
            tervenia permanans et ardens, efficit levem eam terram, et ibi qui naſ-
              <lb/>
            citur tophus exugens eſt, et ſine liquore. </s>
            <s xml:id="echoid-s1281" xml:space="preserve">Ergo cum tres res conſimili
              <lb/>
            ratione, ignis vehementia formatae, in unam pervenerint mixtionem, re-
              <lb/>
            pente recepto liquore una cohaereſcunt, et celeriter humore duratae ſo-
              <lb/>
            lidantur, neque eas ſluctus, neque vis aquae poteſt diſſolvere. </s>
            <s xml:id="echoid-s1282" xml:space="preserve">Ardores
              <lb/>
            autem eſſe in his locis, etiam haec res poteſt indicare, quod in montibus
              <lb/>
            Cumanorum et Bajanis ſunt loca ſudationibus excavata, in quibus vapor
              <lb/>
            ſervidus ab imo naſcens ignis vehementia perforat eam terram, per eam-
              <lb/>
            que manando in his locis oritur, et ita ſudationum egregias eſſicit utilita-
              <lb/>
            tes. </s>
            <s xml:id="echoid-s1283" xml:space="preserve">Non minus etiam memoratur, antiquitus creviſſe ardores et abun-
              <lb/>
            daviſſe ſub Veſuυio monte, et inde evomuiſſe circa agros flammam. </s>
            <s xml:id="echoid-s1284" xml:space="preserve">Ideo-
              <lb/>
            que nunc qui ſpongia ſive pumex Pompejanus vocatur, excoctus ex a-
              <lb/>
            lio genere lapidis, in hanc redactus eſſe videtur generis qualitatem. </s>
            <s xml:id="echoid-s1285" xml:space="preserve">Id
              <lb/>
            autem genus ſpongiae, quod inde eximitur, non in omnibus locis naſci-
              <lb/>
            tur, niſi circum Aetnam et collibus Myſiae, qui a Graecis χαταχεχαυμένοι
              <lb/>
            nominantur, et ſi quae ejuſcemodi ſunt locorum proprietates. </s>
            <s xml:id="echoid-s1286" xml:space="preserve">Si ergo
              <lb/>
            in his locis aquarum ferventes inveniuntur fontes, et in montibus excava-
              <lb/>
            tis calidi vapores, ipſaque loca ab antiquis memorantur pervagantes in
              <lb/>
            agris habuiſſe ardores, videtur eſſe certum, ab ignis vehementia ex topho
              <lb/>
            terraque, quemadmodum in ſornacibus et a calce, ita ex his ereptum eſſe
              <lb/>
            liquorem. </s>
            <s xml:id="echoid-s1287" xml:space="preserve">Igitur diſſimilibus et diſparibus rebus correptis et in unam pote-
              <lb/>
            ſtatem collatis, calida humoris jejunitas aqua repente ſatiata, communibus
              <lb/>
            corporibus latenti calore conferveſcit, et vehementer efficit ea coire, </s>
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