Casati, Paolo, De igne dissertationes physicae, 1686

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              <pb o="20" file="0448" n="448" rhead="Diſſertatio Prima."/>
            phyrum autcm medium quendam tenere ordinem. </s>
            <s xml:id="echoid-s14418" xml:space="preserve">Id quod cumijs,
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            quæ experimur, conſentit: </s>
            <s xml:id="echoid-s14419" xml:space="preserve">ut enim notavit Plinius lib. </s>
            <s xml:id="echoid-s14420" xml:space="preserve">18. </s>
            <s xml:id="echoid-s14421" xml:space="preserve">cap. </s>
            <s xml:id="echoid-s14422" xml:space="preserve">34.
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            </s>
            <s xml:id="echoid-s14423" xml:space="preserve">Aquilonem prænuntiat terra ſicceſcens repente, Auſtrum humeſcens
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            rore occulto. </s>
            <s xml:id="echoid-s14424" xml:space="preserve">Neque nos dubitare poſſumus, quos paſſim immi-
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            nente Auſtro lubrica marmora quaſi oleo peruncta monent, ut
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            cauti incedamus. </s>
            <s xml:id="echoid-s14425" xml:space="preserve">Mihi certè notiſſimæ ſunt in Amici ædibus ſca-
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            læ, quarum gradus exlapide coloris leucophæi, ſeu cinerei, a-
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            deò humoris bibulo, ut vel ipſi pueri prædicant intrà triduum
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            futuram pluviam, cùm viderint gradus ex concepto humore ni-
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            greſcere, & </s>
            <s xml:id="echoid-s14426" xml:space="preserve">iterum lapide nativum colorem reſumente proxi-
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            mam ſerenitatem expectent. </s>
            <s xml:id="echoid-s14427" xml:space="preserve">Quare occultum rorem, quo terra
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            humeſcebat, igneus viſcerum calor reſolvens in nebulam, quæ
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            Inſulam circumplecteretur, flaturum Auſtrum prænuntiabat,
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            & </s>
            <s xml:id="echoid-s14428" xml:space="preserve">ipſe aër multo humore fœtus flammam comprimebat, ne adeò
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            altè clara aſſurgeret, ac quando tempeſtas Borealis purum aërem
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            efficiebat.</s>
            <s xml:id="echoid-s14429" xml:space="preserve"/>
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            <s xml:id="echoid-s14430" xml:space="preserve">Grad. </s>
            <s xml:id="echoid-s14431" xml:space="preserve">Quodcunque tandem illud eſſet, quod futurum ven-
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            tum prænotaret, ſatis fuit, ut fabulæ locus eſſet Æolum vento-
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            rum cuſtodem comminiſcenti. </s>
            <s xml:id="echoid-s14432" xml:space="preserve">Ego tamen (ut, quod ſentio, elo-
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            quar) vero magis ſimilia exiſtimo, quæ à Poly bio afferuntur;
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            </s>
            <s xml:id="echoid-s14433" xml:space="preserve">quippe quæ ex longa obſervatione innoteſcere potuerunt, & </s>
            <s xml:id="echoid-s14434" xml:space="preserve">cum
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            Natura conſentire videntur: </s>
            <s xml:id="echoid-s14435" xml:space="preserve">flante enim Borea majores emitti
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            ſtrepitus facilè intelligo, quia frigidi Boreales halitus dum terræ
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            meatus conſtringunt, difficilem præbent exitum ſubterraneis
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            expirationibus; </s>
            <s xml:id="echoid-s14436" xml:space="preserve">quæ propterea majore copia irrumpentes in cra-
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            teris ignem validiore impetu illum irritant, adeóque majorem
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            edit ſtrepitum. </s>
            <s xml:id="echoid-s14437" xml:space="preserve">Sic velociùs incitati folles in uſtrina & </s>
            <s xml:id="echoid-s14438" xml:space="preserve">majorem
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            excitant ſtridorem, & </s>
            <s xml:id="echoid-s14439" xml:space="preserve">flammam altiùs attollunt. </s>
            <s xml:id="echoid-s14440" xml:space="preserve">Hæctamen
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            nonita dicta velim, quaſi major ille ſtrepitus ſit certum flantis
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            Boreæ indicium; </s>
            <s xml:id="echoid-s14441" xml:space="preserve">neque enim, ut paulò ante innuebam, ita ſub-
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            terraneis flatibus interiorem illum fremitum tribuendum cen-
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            ſeo, ut eam unicam eſſe cauſam mihi perſuadeam: </s>
            <s xml:id="echoid-s14442" xml:space="preserve">ſed quem-
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            admodum ligna quædam arida intrà meatus, quos olim humor
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            ſupervacaneus occupabat, ſpiritum continentia in valido igne
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            crepitant, ſpititu illo rareſcente; </s>
            <s xml:id="echoid-s14443" xml:space="preserve">ſimiliter ex proxima ignibus
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            terra, valido, ac ſubito impetu, erumpere poſſunt vi caloris ra-
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            refactæ aëris particulæ, atque ſtrepitum illum edere.</s>
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            <s xml:id="echoid-s14445" xml:space="preserve">Dand. </s>
            <s xml:id="echoid-s14446" xml:space="preserve">Exijs, quæ in oculos incurrunt, & </s>
            <s xml:id="echoid-s14447" xml:space="preserve">paſſim obſervan-
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            tur, licet abditorum cauſas inveſtigare. </s>
            <s xml:id="echoid-s14448" xml:space="preserve">Nonne ſi in magnum
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            ignem aliquid aquæ injecerimus, protinus exauditur fragor, & </s>
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            aſcendente uberiore fumo multiplicata apparet flamma? </s>
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