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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 2, page id 1677894601:0012
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=12
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 32 lines, status machine
# Lines: 32 recognised, mean confidence 0.93
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
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ching alone, whichche rest of che Lighe doch noc or suF
ers nOL, I caIl a Ray oE Liotc.
DE FIVI. II.
Refrangibility of. the Rays of Zight, is their Disposition to be
refracted or turned out of their Way in passinz out of one trans-
parent Body or Medium into another. And a greater or less Re-
frangibility of Rays, is their Disposition to be turned more or less
out of their Way in lihe Incidences on the same Medium. Mache-
maticians ulually consider che Rars ot Lighe eo be Lines
reachinu trom che luminons Body ro the body illumina-
ced, and che refraction ot chose Rays eo bc che bendino
or breakcine of chose Lines in cheir passing ont ol one Me-
dium inco anocher. And chus may Rays and Retractions
be considered, il Lighe be propagated in an instanc. BuE
by an Aroument cakcen trom che AEquations of che times
ot che Felipses oF FupiterS Satellites it Scems thac Liphe is
propasated in time, spending in ies pallase trom che sun
rous about seven pinures ot time: And cheretore I have
cholen to detine Rars and Retractions in such general
cerms as may agree to Lishe in boch cales.
DE FFN. HI.
Restexibility of Rays, is their Disposition to be turned back into
the same Medium from any other Nedium upon whose Surface they
fall. And Pays are more or les reflexible, which are returned
back more or less easity. A5 it LiphE palS ouE OF GlaIS inEO
Air, and by being inclined more and more to the com-
mon Surtace et che ClaIs and Rir, begins ax lenoch co be
cocally reflected by that Surtace; thole TOrts oF Rays Which
at like Incidences are reflected most copiousty, or by in-
clining che Rays begin Coonest ro be torally reflected, are
most refexible.
F