Casati, Paolo
,
De igne dissertationes physicae
,
1686
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De Flamma & Fumo.
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mum, comitibus pędagogis, ſe recipiebant honeſtæ animorum
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remiſſioni operam daturi vſque ad tertiam noctis horam, cum ex
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ſingulis cuiuſque domibus famulus adueniſſet facem pręlaturus,
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quam, habitâ ragionis valdè niuoſę & </
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<
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">tempeſtatis hyemalis ratio-
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ne, eam eſſe oportebat, cuius flammam neque ventus neque plu-
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uia facilè extinguere valeret. </
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<
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xml:space
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preserve
">Contigit autem ſemel ex famulis
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vnum, cum adueniſſet herilem filium domum reducturus, & </
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<
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huc aliquandiu illum pręſtolari neceſſe eſſet, voluiſſe facem extin-
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guere, ideoque illam appreſſiſſe angulo, quem ſcalarum gradus
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cum pariete conſtituebant: </
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<
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">compreſsâ flammâ retraxit facem,
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& </
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<
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">ne quid fœtoris exhalaret ellychnium fumigans & </
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<
s
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">adhuc accen-
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ſum, iterum facem ad angulum eundem applicuit: </
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">& </
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<
s
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xml:space
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">ecce ex ino-
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pinato flamma corripuit ellychnium; </
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<
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">obſtupuit primùm; </
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<
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">tum lu-
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dibundus iterum facem in angulo eodem graduum extinxit, ite-
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rumque accendit: </
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<
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xml:space
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">id quod puer vnus illac fortuitò tranſiens ob-
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ſeruauit, & </
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<
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">pueros aliquos, inter quos Amicus, ex proximo
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conclaui euocauit, atque interfuerunt ludo aliquoties iterato.
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</
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<
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xml:space
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">Non aliam rei huius cauſam agnoſco pręter hanc, quod ſcilicet in
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angulo illo hęrebant ſulphureę & </
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<
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xml:space
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">bituminoſę particulę rarę atque
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calentes, quę admotâ face adhuc valdè calente facilè nouo impetu
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agitari incipiebant atque inflammari, & </
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<
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">viciſſim ſulphureas facis
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particulas excitabant, vt confertim in flammam erumperent. </
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<
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">Sic
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obſtupeſcunt rudiores, ſiquando viderint candelam recens extin-
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ctam iterum accendi admotam pauimento aut parieti, ignorantes
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fuiſſe latenter conſperſum contrito ſulphure, quod facilè accenſum
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(ideò viuum & </
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<
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">viuax dicitur, namque vt cecinit Ouidius, *Ad-*
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*motas rapiunt viuacia ſulphura flammas)* etiam candelam ac-
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cendit. </
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<
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">Hinc ſuſpicari cæperam, an fortè materia aliqua inflam-
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mabilis parari poſſet, quæ vaſe in conum faſtigiato concluſa, & </
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accenſa, ita flammæ reliquias ad angulum compelleret, vt illæ
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iterum à reſiduo ellychnij calore accenderentur, & </
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te motu (ſicut faci illi contingebat) ad ellychnium redirent: </
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pterea exiguus flammæ fomes requireretur, ne nouâ materiæ ac-
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cenſione flamma præfocaretur: </
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<
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">id autem ſi fieret, manifeſtum eſt
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aperto vaſe flammam illico expiraturam. </
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<
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">Mihi tamen ineptè blan-
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diri nolui, quaſi eâ facilitate in praxim deduci poſſent hæc, qua
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licuit ea mentis intelligentiâ complecti; </
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<
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quæ vaſis amplitudo? </
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