Vitruvius, De architectura libri decem ad Caesarem Augustum, omnibus omnium editionibus longè emendatiores, collatis veteribus exemplis

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        <div xml:id="echoid-div201" type="section" level="1" n="180">
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            <s xml:id="echoid-s17290" xml:space="preserve">
              <pb o="317" file="339" n="339" rhead="DE ARCHITEC. LIB. VIII."/>
            ali{us} coloris aquæ. </s>
            <s xml:id="echoid-s17291" xml:space="preserve">Nam qui ob aluei terram, aren{as}, calculos, ſaxa, ſtirpes etiam ri-
              <lb/>
            pis inhærentes induntur, proprij non ſunt aquarum, ſed eos videntur habere.</s>
            <s xml:id="echoid-s17292" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div202" type="section" level="1" n="181">
          <head xml:id="echoid-head229" style="it" xml:space="preserve">De aquis calidis, & qu{as} habeant vires à diuerſis metal-
            <lb/>
          lis prodeuntes, & de variorum fontium, fluminum, la-
            <lb/>
          cuum\’, natura. #
            <emph style="sc">CAP. III.</emph>
          </head>
          <p>
            <s xml:id="echoid-s17293" xml:space="preserve">SVNT autem etiam nonnulli ſontes calidi, ex quibus
              <lb/>
            profluit aqua ſapore optimo, quæ in potione ita eſt
              <lb/>
            ſuauis, vti nec fontanalis ab Camœnis, nec Martia ſa-
              <lb/>
            liens deſideretur. </s>
            <s xml:id="echoid-s17294" xml:space="preserve">Hæc autem à natura perficiuntur
              <lb/>
            his rationibus: </s>
            <s xml:id="echoid-s17295" xml:space="preserve">cum in imo per alumen, aut bitumen,
              <lb/>
            ſeu ſulphur ignis excitatur, ardore percandefacit ter-
              <lb/>
            ram, quæ eſt circa ſe. </s>
            <s xml:id="echoid-s17296" xml:space="preserve">Supra ſe autem feruidum emittit in ſuperiora loca
              <lb/>
            vaporem, & </s>
            <s xml:id="echoid-s17297" xml:space="preserve">ita ſi qui in his locis, qui ſunt ſupra, fontes dulcis aquæ na-
              <lb/>
            ſcuntur, offenſi eo vapore efferueſcunt inter venas, & </s>
            <s xml:id="echoid-s17298" xml:space="preserve">ita profluunt incor
              <lb/>
            rupto ſapore. </s>
            <s xml:id="echoid-s17299" xml:space="preserve">Sunt etiam odore & </s>
            <s xml:id="echoid-s17300" xml:space="preserve">ſapore non bono frigidi fontes, qui ab
              <lb/>
            inferioribus locis penitus orti, per loca ardentia tranſeunt, & </s>
            <s xml:id="echoid-s17301" xml:space="preserve">ab his per
              <lb/>
            longum ſpatium terr{æ} percurrentes refrigerati perueniunt ſupra terram,
              <lb/>
            ſapore, odore, coloreq́; </s>
            <s xml:id="echoid-s17302" xml:space="preserve">corrupto, vti in Tyburtina via flumen Albula, & </s>
            <s xml:id="echoid-s17303" xml:space="preserve">
              <lb/>
            in Ardeatino fontes frigidieodem odore, qui ſulphurati dicuntur, & </s>
            <s xml:id="echoid-s17304" xml:space="preserve">reli-
              <lb/>
            quis locis ſimilibus. </s>
            <s xml:id="echoid-s17305" xml:space="preserve">Hi autem cum ſint frigidi, ideo videntur aſpectu fer-
              <lb/>
            uere, quod cum in ardentem locum alte penitus inciderunt, humore & </s>
            <s xml:id="echoid-s17306" xml:space="preserve">
              <lb/>
            igni inter ſe congruentibus offenſi, vehementi ſragore validos in ſe reci-
              <lb/>
            piunt ſpiritus, & </s>
            <s xml:id="echoid-s17307" xml:space="preserve">ita inflati viuenti coacti bullientes crebre per fontes
              <lb/>
            egrediuntur. </s>
            <s xml:id="echoid-s17308" xml:space="preserve">Ex his autem qui non ſunt aperti, ſed aut ſaxis, aut alia vi
              <lb/>
            detinentur, per anguſtas venas vehementia ſpiritus extruduntur ad ſum-
              <lb/>
            mos grumorum tumulos. </s>
            <s xml:id="echoid-s17309" xml:space="preserve">Itaque qui putant tanta ſe altitudine, qua ſunt
              <lb/>
            grumi, capita ſontium poſſe habere, cum aperiunt foſſuras latius, deci-
              <lb/>
            piuntur. </s>
            <s xml:id="echoid-s17310" xml:space="preserve">Nanque vti æneum vas non in ſummis labris plenum, ſed aquæ
              <lb/>
            menſuram ſuæ capacitatis habens è tribus duas partes, operculumq́; </s>
            <s xml:id="echoid-s17311" xml:space="preserve">in eo
              <lb/>
            collocatum cum ignis vehementi feruore tangatur, percaleficri cogit
              <lb/>
            aquam, ea autem propter naturalem raritatem in ſe recipiens feruoris va-
              <lb/>
            lidam inflationem, non modo implet vas, ſed ſpiritibus extollens opercu-
              <lb/>
            lum & </s>
            <s xml:id="echoid-s17312" xml:space="preserve">creſcens abundat, ſublato autem operculo emiſsis inflationibus in
              <lb/>
            aëre patenti, rurſus ad ſuum locum reſidet. </s>
            <s xml:id="echoid-s17313" xml:space="preserve">Ad eundem modum capi-
              <lb/>
            ta fontium, cum ſunt anguſtiis compreſſa, ruunt in ſummo ſpiritus aquæ
              <lb/>
            bullitus. </s>
            <s xml:id="echoid-s17314" xml:space="preserve">Simul atque latius ſunt aperti exinaniti per raritates liquidæ
              <lb/>
            poteſtatis reſidunt, & </s>
            <s xml:id="echoid-s17315" xml:space="preserve">reſtituuntur in libramẽti ſui proprietatem. </s>
            <s xml:id="echoid-s17316" xml:space="preserve">Omnis
              <lb/>
            autem aqua calida, ideo quidem eſt medicamentoſa, quod in præuiis re-
              <lb/>
            bus percocta, aliam virtutem recipit ad vſum. </s>
            <s xml:id="echoid-s17317" xml:space="preserve">Nanque ſulphuroſi </s>
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