Casati, Paolo, De igne dissertationes physicae, 1686

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              <pb o="179" file="0191" n="191" rhead="Quomodo Ignis accendatur."/>
            noſque conſtituant, ſatis eſſe poſſunt Phyſicæ contemplationi
              <lb/>
            Idcirco tria Principia Actiua & </s>
            <s xml:id="echoid-s5380" xml:space="preserve">Calida Salem, Sulphur, atque Spi-
              <lb/>
            ritum, tria Paſſiua & </s>
            <s xml:id="echoid-s5381" xml:space="preserve">Frigida Terram, Aquam, atque Spiritum Fri-
              <lb/>
            gidum admittenda eſſe exiſtimo. </s>
            <s xml:id="echoid-s5382" xml:space="preserve">Et quidem ex vino generoſo, ſi
              <lb/>
            per octiduum digeratur in vaſis circulatorijs, quinque illa priora
              <lb/>
            (quoad maximam partem) ſeparatim haberi poſſunt. </s>
            <s xml:id="echoid-s5383" xml:space="preserve">Nam ſire-
              <lb/>
            frigerato vaſe, in quo facta eſt digeſtio, effundatur vinum in cu-
              <lb/>
            curbitas altas, quibus impoſiti ſint alembici roſtrati, rimis omni-
              <lb/>
            bus accuratè obſtructis, per balneum Maris elicietur primùm Spi-
              <lb/>
            ritus: </s>
            <s xml:id="echoid-s5384" xml:space="preserve">deinde mutato Recipiente, & </s>
            <s xml:id="echoid-s5385" xml:space="preserve">vrgente calore habebitur
              <lb/>
            Phlegma, vſque dum deueniatur ad ſimilem melli liquido craſſi-
              <lb/>
            tiem. </s>
            <s xml:id="echoid-s5386" xml:space="preserve">Tum per Retortam, ſeruatis ignis gradibus, deſtillatæ fæ-
              <lb/>
            ces dabunt oleum pingue. </s>
            <s xml:id="echoid-s5387" xml:space="preserve">Demum ex Capite Mortuo habebitur
              <lb/>
            Sal aſſuſo phlegmate, digerendo, ſiltrando, & </s>
            <s xml:id="echoid-s5388" xml:space="preserve">coagulando. </s>
            <s xml:id="echoid-s5389" xml:space="preserve">Et
              <lb/>
            obtento Sale, ſi phlegma, quod fortaſſe reſiduum fuerit in Capi-
              <lb/>
            te Mortuo, abſtraxeris, Terra remanebit. </s>
            <s xml:id="echoid-s5390" xml:space="preserve">At Spiritum Frigidum
              <lb/>
            exhibere ſpectabilem ſeparatum à Spiritu Calido nulla ars poteſt,
              <lb/>
            ſiquidem Spiritus Calidus ob admiſtionem Spiritûs Frigidi cogitur
              <lb/>
            in liquorem, alioquin in auras abiens, niſi fortè cum humore
              <lb/>
            aqueo iungeretur, ſe oculis ſubduceret. </s>
            <s xml:id="echoid-s5391" xml:space="preserve">Cœterùm Spiritus Fri-
              <lb/>
            gidos eſſe aliquos manifeſtum videtur, & </s>
            <s xml:id="echoid-s5392" xml:space="preserve">quando penetrabile fri-
              <lb/>
            gus adurit, & </s>
            <s xml:id="echoid-s5393" xml:space="preserve">quando cadens aliquandiu aqua ex fontis ſiſtulâ
              <lb/>
            ſuper phialam aquæ eiuſdem plenam eam ita refrigerat, vt multo
              <lb/>
            frigidior ſit, quàm aqua ipſius fontis, è quo deſumpta fuit:
              <lb/>
            </s>
            <s xml:id="echoid-s5394" xml:space="preserve">neque enim aqua, aut terra penetrat in corpus, quod frige-
              <lb/>
            ſcit: </s>
            <s xml:id="echoid-s5395" xml:space="preserve">eſt igitur alia tenuior natura, quam Spiritum Frigidum
              <lb/>
            voco.</s>
            <s xml:id="echoid-s5396" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5397" xml:space="preserve">Dand. </s>
            <s xml:id="echoid-s5398" xml:space="preserve">Niſi illa aquæ refrigeratio contingeret ex immiſſis per
              <lb/>
            vaſis poros ab aquâ cadente tenuiſſimis particulis, quibus referta,
              <lb/>
            quæ vaſe continetur, aqua vim concipit excitandi acriorem fri-
              <lb/>
            goris ſenſum, vix intelligi poteſt, quomodo cadentis aquæ fri-
              <lb/>
            gus, æquè lene ac remiſſum cum frigore aquæ in phialam incluſæ,
              <lb/>
            gignere valeat qualitatem magis intenſam; </s>
            <s xml:id="echoid-s5399" xml:space="preserve">quandoquidem huiuſ-
              <lb/>
            modi virtute prædita non eſſet illa eadem aqua quieſcens; </s>
            <s xml:id="echoid-s5400" xml:space="preserve">quas
              <lb/>
            enim frigefaciendi vires adderet motus ille? </s>
            <s xml:id="echoid-s5401" xml:space="preserve">Fatendum eſt igitur
              <lb/>
            frigidas particulas (quibus, quia frigidæ ſunt, vltrò commoueri
              <lb/>
            non conuenit, quemadmodum calidis) ex impetu cadentis aquæ
              <lb/>
            ingeri in vaſis poros adeò, vt alijs atque alijs vrgentibus, </s>
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