Casati, Paolo
,
De igne dissertationes physicae
,
1686
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De ignis natura.
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ris vim exerentes abſque vllo ſplendore, ita ſpiritus aliquis exi-
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ſtat luce pręditus, ſed mediocriter tantùm, aut ne mediocriter
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quidem, calidus, & </
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">an ille in ignium cenſu ae numero reponen-
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dus ſit, non eſt huius loci deſinire; </
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<
s
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xml:space
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">ſed tunc demum conſtabit, cum
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de ignis luce & </
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<
s
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xml:space
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">calore erit nobis diſputatio, neque vacat hìc con-
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trouerſiam inſtituere, quæ ſermonem immodicè protraheret, & </
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<
s
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ad alia auocaret. </
s
>
<
s
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"
xml:space
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">Illud ſatis fuerit innuere, quod Naturas illas
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corporum Igneas vocamus, in quibus huiuſmodi calidorum ſpiri-
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tuum copia deprehenditur, ita vt eorum efficientia validior ſit at-
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que magis conſpicua, præ cœteris eorundem corporum particulis
<
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languidiùs vires ſuas exerentibus. </
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>
<
s
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xml:space
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">Propterea Salem, de quo me
<
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legiſſe memini apud S.</
s
>
<
s
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xml:space
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">Hilarium illa Chriſti verba, *Vos eſtis Sal*
<
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*terræ*, explicantem, *Sal eſt in ſe vno continens aquæ & </
s
>
<
s
xml:id
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"
xml:space
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">ignis ele-*
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*mentum, & </
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>
<
s
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xml:space
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">hoc ex duobus est vnum*, adnumerandum inter igneas
<
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naturas cenſeo, vis quippe ignea in illo magis elucet, non ſolùm
<
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quia humidis corporibus aſperſus illa exſiccat humorem attenuans
<
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atque reſoluens, verùm etiam quia ex ſalibus Aquę Acres, ſeu For-
<
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tes extillantur, quibus metalla ſoluuntur, & </
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">affuſo guttatim Oleo
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Tartari præcipitantur, atque in ealcem rediguntur: </
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<
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xml:space
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">id quod for-
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nacis ardoribus perſici nequit niſi diuturno tempore. </
s
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<
s
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xml:space
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">Quod au-
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tem Sal niuibus permiſtus vim conglaciandi acuat, non continuò
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ex ignearum naturarum albo expungendus eſt; </
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<
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xml:space
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">nam & </
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">Spiritus Vi-
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ni, ſeu Aqua Ardens, vt vocant, ſi huiuſmodi niuibus affundatur,
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congelationem validiùs promouet, nec propterea Spiritum Vini
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frigore abundare dicimus: </
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>
<
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xml:space
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">qua verò ratione id contingat, non vi-
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detur huius loci examinare, nec faciendus eſt ab igne ad glaciem
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tranſitus. </
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<
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">Quid enim, ſi quis dixerit Spirituum nitroſorum, quos
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Nix continet, inertiam excitari ab igniculis Salis & </
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<
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">Spiritus Vini,
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qui etiam vaſis liquorem conglaciandum continentis meatus dum
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permeant, illis attenuatis aditum aperiant, vt liquori commiſcean-
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tur, eiuſque particulas cogant? </
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>
<
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xml:space
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">Sed hæc mittamus, ne alienæ quę-
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ſtioni locum demus. </
s
>
<
s
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xml:space
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">Illud potiùs in Sale obſeruandum videtur,
<
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quod ſi aqua ſale imbuta ſubdito igne ſoluatur in vaporem, Salin
<
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vaſis fundo relinquitur; </
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>
<
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xml:space
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">aqua autem, quæ ſale magis abundat,
<
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grauior eſt ſecundùm ſpeciem, ideòque aquę ſalſæ præ dulcibus
<
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maiora ferunt nauigia, magiſque onuſta; </
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<
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xml:space
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">ex quo inferri poſſe vi-
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detur grauitatem ſali ineſſe maiorem grauitate aquæ, quam ſuâ
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permiſtione efficit grauiorem ſecundùm ſpeciem: </
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