Casati, Paolo
,
De igne dissertationes physicae
,
1686
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Quomodo Ignis accendatur.
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rat ligneus bacillus, ſiue ex hederâ, ſiue ex lauro deſumptus, vti-
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que aër non minùs comminuitur, quàm ſi lignum aliud ſiue laurum,
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ſiue hederam, idem bacillus tereret, nec tamen aër inignis natu-
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ram tranſit.</
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<
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incendi poſſunt; </
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<
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<
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">ἔςι δὲ καυςὰ, ὅσα ἔ χ{ει} πόρους δεκτικούς πυρὸς,
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{καὶ} ὑγρότητα ἐν τοῖς κα\’τ ἐυθυψρίαν πόροις ἀ{σθ}ενεςέραν πυρός. </
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δὲ ἢ μὴ ἐχ{ει}, ἢ ἰχυροτέραν, \~ὁιον κρύςαλλος, {καὶ} τὰ σφόδρα χλωρὰ,
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ἀκαυςά. </
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<
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">*ſunt autem combuſtibilia, quæcunque babent meatus ſuſce-*
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*ptiuos ignis, & </
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">bumiditatem in ijs, qui ſecundùm directum,*
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*meatibus debiliorem igne: </
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">quæcunque autem aut non babent* (poros
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capaces) aut fortiorem (humiditatem habent) *velut glacies, & </
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*valdè uiridia ſunt, incombuſtibilia.</
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<
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">Ideò ſicca eſſe oportet ligna, vt ex eorum tritu accendi
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poſſit ignis: </
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">ſietenim humore redundent, lentorem habent parti-
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culæ, & </
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">flexibilitatem, cum potiùs friabiles eſſe conueniat, vt
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in illo conflictu luxatione diſſolui incipiat compages, tùm Spiritus
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vnâ cum Sulphure eluctantes Terræ permiſtæ vincula, atque poros
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ligni peruagantes (quos vtique humore non obſtrui neceſſe eſt) ſuo
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impulſu concutiant obuias particulas, & </
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cum aquâ & </
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<
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& </
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">Sales Volatiles plures
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libertatem nactos fuiſſe contigerit, collatis viribus proximas li-
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gni partes impetunt, atque illas celerrimè commoti diſſoluunt:
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</
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">Qua in agitatione ſpatia ampliora querentes proſiliunt, & </
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mum fomitem, ſi quem repererint, corripiunt. </
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">Citò autem in
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fomite propagatur, atque ampliſicatur ignis, quia materia arida
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eſt, & </
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">rara adeò, vt immiſſi igniculi facillimè per tam multos il-
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lius meatus excurrere, & </
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commouere, ac diſſoluere valeant. </
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rum, folijs aridis, paleis, papyro, & </
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denda ſarmenta, atque his ad craſſiora ligna comburenda, vt mul-
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ti igniculi, potiſſimùm ſulphurei atque ſpiritus, è fomite vno impetu
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erumpentes aggrediantur plures ſarmentorum particulas, & </
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rum meatus per vim ſe inſinuent, vbi ſimili agitatione tumultuan-
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tes horum Sulphur, atque Spiritum, ac Salem volatilem impel-
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lunt, commouent, exagitant vſque eò, dum & </
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