Casati, Paolo, De igne dissertationes physicae, 1686

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            <s xml:id="echoid-s5992" xml:space="preserve">
              <pb o="197" file="0209" n="209" rhead="Quomodo Ignis accendatur."/>
            mirum in aquâ ſoluto, terra admiſta ſubſidit. </s>
            <s xml:id="echoid-s5993" xml:space="preserve">Quod verò hinc el-
              <lb/>
            lychnium perpetuum conſiciatur, conſequens eſt, cum pinguia
              <lb/>
            & </s>
            <s xml:id="echoid-s5994" xml:space="preserve">oleoſa ſalem non ſoluant, ſicut aquea, flamma verò erumpens
              <lb/>
            non tantæ ſit efficacitatis, vt valeat arctum Salis & </s>
            <s xml:id="echoid-s5995" xml:space="preserve">terræ comple-
              <lb/>
            xum ſoluere: </s>
            <s xml:id="echoid-s5996" xml:space="preserve">id quod fortaſſe Chymicus artifex in Retortâ,
              <lb/>
            adminiſtratis ex artis præſcripto caloris gradibus, obti-
              <lb/>
            neret.</s>
            <s xml:id="echoid-s5997" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5998" xml:space="preserve">Grad. </s>
            <s xml:id="echoid-s5999" xml:space="preserve">Iſtane eadem eſt cauſa, cur Larix, vt ſcribit Vitruuius
              <lb/>
            lib. </s>
            <s xml:id="echoid-s6000" xml:space="preserve">2. </s>
            <s xml:id="echoid-s6001" xml:space="preserve">cap.</s>
            <s xml:id="echoid-s6002" xml:space="preserve">9. </s>
            <s xml:id="echoid-s6003" xml:space="preserve">*flammam exigni non recipit, nec ipſe poteſt per ſe*
              <lb/>
            *ardere, niſi (vti ſaxum in fornace ad calcem coquendam) alijs*
              <lb/>
            *lignis vratur; </s>
            <s xml:id="echoid-s6004" xml:space="preserve">nec tamen tunc flammam recipit, nec carbonem*
              <lb/>
            *remittit, ſed longo ſpatio tardè conſumitur?</s>
            <s xml:id="echoid-s6005" xml:space="preserve">* Nam grauitas ligni
              <lb/>
            non innatantis aquæ Salem & </s>
            <s xml:id="echoid-s6006" xml:space="preserve">terram in Larice abundare indicat,
              <lb/>
            & </s>
            <s xml:id="echoid-s6007" xml:space="preserve">meatuum obſtructio, quos anguſtos implet reſina, igniculis
              <lb/>
            facilem ingreſſum atque progreſſum negat: </s>
            <s xml:id="echoid-s6008" xml:space="preserve">ideò ſubdit Vitruuius,
              <lb/>
            *Humore ex terreno est materia ſpiſsè ſolidata, & </s>
            <s xml:id="echoid-s6009" xml:space="preserve">non babens*
              <lb/>
            *ſpatia foraminum, quà poſſit ignis penetrare, reijcitque eius vim,*
              <lb/>
            *nec patitur ab eo ſibi citò noceri; </s>
            <s xml:id="echoid-s6010" xml:space="preserve">propterque pondus ab aquâ non*
              <lb/>
            *ſuſtinetur, ſed cùm portatur, aut in nauibus, aut ſupra abiegnas*
              <lb/>
            *rates collocatur.</s>
            <s xml:id="echoid-s6011" xml:space="preserve">*</s>
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          <p>
            <s xml:id="echoid-s6012" xml:space="preserve">Dand. </s>
            <s xml:id="echoid-s6013" xml:space="preserve">Non aliam equidem arbitror ſubeſſe cauſam, præter hanc,
              <lb/>
            quod Salis fixi particulæ terram arctè complexæ intercluſas ſulphu-
              <lb/>
            ris particulas (quibus, atque humore reſina plurimum conſtat)
              <lb/>
            prohibent, ne facilè pro ſuâ naturâ commoueri & </s>
            <s xml:id="echoid-s6014" xml:space="preserve">agitari valeant
              <lb/>
            ab ijs, qui primò immittuntur, igniculis: </s>
            <s xml:id="echoid-s6015" xml:space="preserve">propterea iſti irrito co-
              <lb/>
            natu irrumpentes in laricis lignum reſiliunt, flammamque refle-
              <lb/>
            ctunt, adeò vt hoc videatur flammas dedignari, & </s>
            <s xml:id="echoid-s6016" xml:space="preserve">velle à ſe diſ-
              <lb/>
            cutere; </s>
            <s xml:id="echoid-s6017" xml:space="preserve">quemadmodum facili experimento conſtare poteſt, & </s>
            <s xml:id="echoid-s6018" xml:space="preserve">in
              <lb/>
            illum Vitruuij locum obſeruârunt Barbarus, & </s>
            <s xml:id="echoid-s6019" xml:space="preserve">Philander. </s>
            <s xml:id="echoid-s6020" xml:space="preserve">Cœte-
              <lb/>
            rùm vbi incurrens ignis iteratis impulſibus demum tot particu las
              <lb/>
            abſtraxit, vtiam Spiritus atque Sulphureæ Laricis particulæ ab
              <lb/>
            ingredientibus igniculis concitatæ ſpatium inueniant, in quo agi-
              <lb/>
            tari poſſint, incipit lignum diſſolui & </s>
            <s xml:id="echoid-s6021" xml:space="preserve">ardere: </s>
            <s xml:id="echoid-s6022" xml:space="preserve">quia tamen non pro-
              <lb/>
            ſiliunt exardeſcentes particulæ tam vehementi impetu, quantus
              <lb/>
            ad flammam excitandam requiritur, & </s>
            <s xml:id="echoid-s6023" xml:space="preserve">ſenſim calor ſibi viam ape-
              <lb/>
            riens ad interiora ſerpit, idcirco larix lentè conſumitur, contra
              <lb/>
            quàmaccidat abieti, *quæceleriter accenditur, quòd, quæ inest*
              <lb/>
            *in eo corpore raritas aëris patens, accipit ignem, & </s>
            <s xml:id="echoid-s6024" xml:space="preserve">ita </s>
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