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# Title: R. P. Vincentii Leotavdi Delphinatis, Societ. Iesv, Magnetologia (shelfmark Leibn. Marg. 174)
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Cap. IV. De vi Terra Mlagnetica.
Dereniatur: in quo perpenauualiter Magneci insiltune. Sciro itaque aliquid
plane simile in cerrestri globo obseruari.
Ecce enim frequentibus, certilque experientiis a peritissimis hac in AErC
viris rbique cerrarum captis constar Verlorium rerticale pro variis locorum
lacicudinibus rariam ad Florilontem inclinationem nancilei, eandem FaMEM
in eodem Parallelo obleruare. In A. quatore itaque live in Sphaera recta Ver-
Torium adiacet Florilonti, sicumque occupat Axi Vniuerh parallelum. Ve vero
ab AE quatore receditur, Verlorium ad Florilontem inclinatur semper inagis:
donectandem in Polo, re ex prooressu inclinationum colligere licet (neque
enim cd rique hactenus pacuit accellus, re ibidem experimentum vlurparetur)
Florilonti insistar perpendiculariter. Fr ne quid ad hanc Analosiam obeli Fer - 1. 3
rei ad Magnetem appoliti, e verticalis Verlorii ad cerrestrem Globum insi-
Aentis delideraretur: ob sergatur, si in Maonere Sphaerico, e in cerrestri Glo-
Do puncta similiter polit desionentur; obleruatur, inguam, in huiulmodi
punctis obelum ad Magnecem, ee Verlorium ad cerrestrem Clobum cundem
inclinationis angulum constitmere. Ouid plura: Ecce. Sicut obeli longitudo
in plano meridiano Magnetis, hoc elt, in plano per eius Polos, e punctum,
cui adhaeret obclus, ducto sele componit; ita Verlorium verticale semper in
circulo Meridiano Telluris iacet. Ouae cum ita habeane: cui in Mentem ve-
niac dubicare an limili ricture regantur obelus circa Magnetem, de verricale
Verlorium circa Tellurem non secus itaque Pellus, quam magnes virtute pol-
Det Magnetica.
Fertio. Fandem Magnericam virturem cerrestri Clobo alserie mulciplex.
ex co gracius fucurum experimentum, quo Facilius quiliber per se illud porest
inire. Expolui cap. 3. superiori quemadmodum Vexloria Magneticam virtutem
a Magnete concipiant s eorum exrremum alterum non tancum eius Polis (li-
cet hinon paulo maiorem infundendi sine apriora) Ced etiam cuilibet rnius
hemilphaerii puncto affricaretur, auc per aliquam cemporis moram adharerei.
Ouam quidem rirturem concipiendi apta eodem modo est rirga ferrea paulo
maior, si Magneris paulo eriam maioris contactu Fruatur. Ouid Si Ferrea pau-
Io longiora, ve bacilli ferrei, quibus fenestra occludi (olene, COrum extreme
altero cum Tellure per debitum temporis spatium cohaerente Mlagnericam
hauriane virrurem eiuldem plane rarionis, et per effectus plane limiles mani-
Feltam, ac li Magneris alicuius sibi proportionati commercio vla Fuillent: An
Fellurem Magnerica vieture pollere Arsumentum deliderari porerir cuiden
rius: Ecce isitur qua id constet experientia. Nullibi non occurrunE virga
Ferrea, qua vel ad Florilontem perpendiculares diucurniore cemporis spatio,
spatio scilicet aliquot annorum secerine; rel in plano meridiano nulla eriam
earum sicus sure erecti, siue obliqui ad Florilontem habica ratione diu perdu-
TarinE. Hlabes obuias crates Ferroas, quibus Fenestra palsim obleraneur, bacit-
lis etecto cataee Constances. Ilabes X ferream Supellectilem ioni
componendo toncuus acthiberi, quae ad Hlorilontem perpendicularis ve pluris
muntepee. Elubes etiam alias terreus virsas ad A dificia necellarS, qua