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# Title: Optica Promota, Seu Abdita radiorum reflexorum & refractorum Mysteria, Geometrice Enucleata (shelfmark Leibn. Marg. 94)
# Folio 39, page id 727094130:0051
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30.
conve LCIIIGetr in L. B) aequales. X ideo refractiones
quoq5 aquales, guae ab aequalibus incideneix angulis M L. C, L C II
Substractae, vel iisdem addirae, efficiune angulos IL B, F C HE xqua-
les. Fodem modo probabitur aequaliras angulorum AV I, R C F3
Lorusixicus angulus AL. B, est aequalis rori angulo F. C L. 3. quod
demonltrare OpOrcuIE.
Si ambobus oculis sanis, punctum quodlibet asspiciatur; distantia illius
ab oculis siveulis, hoc est ipsius locus, semper estimatur, secundum
contorsionem axium oculorum.
CExpunctum quodlibet visibile A, oculorum centra MIVV. Si OCu-
a li MI, N, nuilo vicio laborent, e oculacus cogicabundus haereae
nihil intuens; tanc oculorum axes M O, N L. semper erunt paral-
leli, nempe in sicu suo nacurali; si vero ambo oculi InEHCANEE
punctum aliquod a C longinquo, paululum COnFOrGUeNEuE axes
oculares MI. O, NV L, In M A, N A,. (quoniam in oculorum axibus
solummodo sicvitio distinctissima, ur experientia laris constaE, Fa-
cione rero tirmistime demonstratur:) et s ambo oculi incueancur
a0 cusit   aalb
punctum aliquod proxinquius Fl, adhue magis concorsuentur ares
OcuIOruM MI A, NA in M H _ N II: acq; quocidiana experientia
majoris vel minoris concortinis, nacura est edocta, uc de dictancia,
seu locovisibilis, conjecturam Facere Potu
Corollarium.
i t     u C
e in
udaatlatt aatba C .
1bd