Casati, Paolo, De igne dissertationes physicae, 1686

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            <s xml:id="echoid-s5482" xml:space="preserve">
              <pb o="183" file="0195" n="195" rhead="Quomodo Ignis accendatur."/>
            quid nouum conſurgeret ex illâ permiſtione particularum prorſus
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            homogenearum, cum idem haberetur etiam, ſi omnes quieſce-
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            rent: </s>
            <s xml:id="echoid-s5483" xml:space="preserve">*Natura* autem, vt illam vocat Cicero lib. </s>
            <s xml:id="echoid-s5484" xml:space="preserve">2. </s>
            <s xml:id="echoid-s5485" xml:space="preserve">de Nat. </s>
            <s xml:id="echoid-s5486" xml:space="preserve">*Con-*
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            *ſultrix & </s>
            <s xml:id="echoid-s5487" xml:space="preserve">prouida vtilitatum opportunitatumque omnium* nihil agit
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            niſi cum vtilitate coniunctum, quia fruſtra & </s>
            <s xml:id="echoid-s5488" xml:space="preserve">ſinè cauſâ quid fa-
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            cere, ſicut Deo dignum non eſt, ita abhorret à Naturæ (quæ
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            vtique nil aliud eſt præter Deum iuxta rerum exigentias operan-
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            tem) prouidentiâ, qua omnia in mundo adminiſtrantur: </s>
            <s xml:id="echoid-s5489" xml:space="preserve">ideò,
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            vbi nulla ſenſibus obijciuntur motûs argumenta, neque menti
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            vlla apparet motûs vtilitas, motum adſtruere non debemus;
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            </s>
            <s xml:id="echoid-s5490" xml:space="preserve">quia, vt iterum cum Cicerone loquar lib. </s>
            <s xml:id="echoid-s5491" xml:space="preserve">3. </s>
            <s xml:id="echoid-s5492" xml:space="preserve">Offic. </s>
            <s xml:id="echoid-s5493" xml:space="preserve">*Nihil tam eſt*
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            *ſecundùm Naturam, quàm vtilitas*. </s>
            <s xml:id="echoid-s5494" xml:space="preserve">Sic obſeruatum eſt ea, quæ
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            omnino ſimiles habent particulas, minimè fermenteſcere; </s>
            <s xml:id="echoid-s5495" xml:space="preserve">ideò
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            nec aquæ deſtillatæ, nec olea Chymica, nec Spiritus Vini, nec
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            alij ſimplices huiuſmodi liquores commouentur. </s>
            <s xml:id="echoid-s5496" xml:space="preserve">Quod ſi proxi-
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            mæ fiant naturæ ſpecie differentes, ſiue ad idem genus, ſiuè ad
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            plura genera pertineant, iam cum vtilitate aliquâ contingere po-
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            teſt permiſtio, ex qua in tertiam aut inchoatam, aut perfectam
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            naturam plures diuerſæ particulæ temperentur: </s>
            <s xml:id="echoid-s5497" xml:space="preserve">propterea tunc
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            omnes mobilitatem ſuam exercentes ſe viciſſim, & </s>
            <s xml:id="echoid-s5498" xml:space="preserve">quas obuias
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            habent motûs expertes particulas, atterunt, atque comminuunt,
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            vt faciliùs minima commiſceantur. </s>
            <s xml:id="echoid-s5499" xml:space="preserve">Hinc ſi oleo Terebinthinæ
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            inſpergas in cyatho Spiritum vini defæcatiſſimum, innatabunt
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            quidem olei guttulæ, ſed quaſi æſtro agitate diſcurrent per ſu-
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            perſiciem Spiritûs vini; </s>
            <s xml:id="echoid-s5500" xml:space="preserve">vtrique enim vis caloris ineſt; </s>
            <s xml:id="echoid-s5501" xml:space="preserve">id quod
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            non contingit, ſi aquę fontanæ oleum illud inſpergatur. </s>
            <s xml:id="echoid-s5502" xml:space="preserve">Similiter
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            ſi Nitro liquenti in crucibulo inijcias Sulphuris Communis par-
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            ticulam, hæc vi caloris dum ſoluitur, igniculos emittens nitri
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            pinguedinem abſumentes, huc illùc diſcurrit. </s>
            <s xml:id="echoid-s5503" xml:space="preserve">Motus hic agita-
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            tionis, quo Principia Calida ſe omnem in partem verſant, ſimpli-
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            citer & </s>
            <s xml:id="echoid-s5504" xml:space="preserve">abſolutè naturalis dicendus eſt; </s>
            <s xml:id="echoid-s5505" xml:space="preserve">naturæ quippe ſimplices
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            ad mixta componenda iam tum ab ortu rerum deſtinatæ ſunt: </s>
            <s xml:id="echoid-s5506" xml:space="preserve">
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            quamquam fieri non poſſit, vt ſingulæ careant omni reſiſtentiâ; </s>
            <s xml:id="echoid-s5507" xml:space="preserve">
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            vel enim commouentur & </s>
            <s xml:id="echoid-s5508" xml:space="preserve">luxantur Principia Paſſiua & </s>
            <s xml:id="echoid-s5509" xml:space="preserve">Frigida,
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            que motui moram inferunt, vel occurrunt alia Principia Actiua
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            Calida diuerſæ mobilitatis, & </s>
            <s xml:id="echoid-s5510" xml:space="preserve">inæqualis aut oppoſiti motûs,
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            adeoque ſe viciſſim vrgent, aut repellunt. </s>
            <s xml:id="echoid-s5511" xml:space="preserve">Hæc eſt celebris illa
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            Elementorum diſcordia concors, & </s>
            <s xml:id="echoid-s5512" xml:space="preserve">concordia diſcors, qua </s>
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