. Guilielmi Gilberti Colcestrensis, medici londinensis, De magnete : magneticisque corporibus, et de magno magnete tellure; physiologia noua, plurimis & argumentis, & experimentis demonstrata . Expc^ DE M AGNET£,LIB. IIII. Experimentumfitperfilum lorigumferreum,trium digitbrum,po-fitum fuper polum A, ita vt medium eius iaceat fuper polum: Con~uertitur finis alter a B verfiis C, nec vult acquiefcere verfus B: At inperfeclo vndique & sequali quiefcet fuperpolum, verfus quoduispun&umsequatoris dire&um. Aliter,- fintduo meridiani qui con-. ceniant in* polis A B, in iequalibus arcubus D A, & C A, a
. Guilielmi Gilberti Colcestrensis, medici londinensis, De magnete : magneticisque corporibus, et de magno magnete tellure; physiologia noua, plurimis & argumentis, & experimentis demonstrata . Expc^ DE M AGNET£,LIB. IIII. Experimentumfitperfilum lorigumferreum,trium digitbrum,po-fitum fuper polum A, ita vt medium eius iaceat fuper polum: Con~uertitur finis alter a B verfiis C, nec vult acquiefcere verfus B: At inperfeclo vndique & sequali quiefcet fuperpolum, verfus quoduispun&umsequatoris dire&um. Aliter,- fintduo meridiani qui con-. ceniant in* polis A B, in iequalibus arcubus D A, & C A, adeoq; meorumjerminis D &C,erigantur filaferrca -y in D (fortiore regio-ne)magis attolletur filum quim in Gimbecilliore. Atq; ficagnofci-tur firmior magnetis pars &validior, qua* fenfu aM s non percipere-tur. Inperfe&a, & per omnes partes sequali & fimili terreM, atqueinparibus a polo diftantijs varietas nulla eft. Oftenditur variatioperterrella,cuiuspars ampla5eminentiorpaul6qdim reliquafuper-ficies,verforiu allicit dvera direclione, (totii terrella promouente)etiamfi cariofanon fit & in fuperficie insequalis» 1B
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