Musschenbroek, Petrus van
,
Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes: ut et ephemerides meteorologicae ultraiectinae
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DE MAGNETE.
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curii ſublimati corroſivi ana ℨiij. </
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<
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xml:space
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phialæ immiſi vitreæ, quam expoſui igni arenæ trihorii ſpatio; </
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<
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ſcendit omnis Mercurius ſublimatus, atque adhæſit ſuperiori phia-
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læ fornici, ejuſque collo, quemadmodum in omni ſublimationeejus
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contingit; </
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<
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">ſed nihil ex Magnete ſecum elevavit; </
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<
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">qui ſub forma
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pulveris remanſit in phialæ fundo: </
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<
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">hac diffracta & </
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<
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obſervata fuit vis eadem attratrix ſuperſtes in eo, quæ ante inſtitu-
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tam operationem adnotata fuerat.</
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<
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">Quia in Chemiâ aliquando deprehendimus unâ operatione non
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peragi, quod repetita abſolvitur, Mercurium ſublimatum priorem
<
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collegi, ipſique crudi Mercurii ℈ij. </
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<
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">admiſcui, & </
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<
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Magnetis eundem: </
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<
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">hæc tria phialæ vitreæ immiſſa iterum igni ex-
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poſui arenæ per tres horas, quibus elapſis deprehendebam Mercu-
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rium omnem quidem fuiſſe ad ſuperiorem phialæ fornicem ſublima-
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tum, attamen eum nihil ex Magnere ſecum elevaſſe, qui ſub forma
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pulveris, ejuſdem ac ante coloris, ad fundum phialæ manſit, & </
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<
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xml:space
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poſtea examinatus per Magnetem alium ſupra ipſum detentum, ni-
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hil de ſuâ virtute perdidiſſe deprehendebatur.</
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<
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">Omnem quem colligere potui Mercurium in hac operatione, miſcui
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iterum accurate cum pulvere Magnetis eodem, immiſique crucibulo
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terreo, ſuperne aperto, viſurus quid major ignis, & </
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<
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">apertus in
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hæc ambo corpora operaretur, ex diverſa enim Ignis applicatione
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haud raro diverſiſſima conficiuntur producta, per horam igitur in
<
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furno anemi igni commiſi maſſam, avolavit Mercurius, relinquens
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cundem pulverem Magnetis in crucibulo, nec mutatum copia, co-
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lore, aut vi attractrice, quam in Verſorium & </
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<
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exercebat; </
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<
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quicquam agere in Magnetem, nihilque in ipſo mutare, corrum-
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pere, volatile reddere, ſeparare, ſed ipſum penitus relinquere in-
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tactum.</
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<
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derit, concludere tamen ut Phyſicus non poteram, ergo nullum
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Sal Magnetem reddet volatilem, quia Salia diverſiſſimæ </
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