# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/1677894601:0113
# Permalink to this reading: https://leibnizlegible.com/page/1677894601:0113?run=74
# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 93, page id 1677894601:0113
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=113
# Source image: https://digitale-sammlungen.gwlb.de/content/1677894601/jpgs/default/00000113.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 32 lines, status machine
# Lines: 32 recognised, mean confidence 0.91
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line: the recognised lines in reading order, one per line.

rars havins one common fine of incidence, and chere.
Fore since the common tine ot incidence ot the most and
least retransible rars out oF CilaIs into Air WaS, (By à
method deleribed abore) Found in proportion to their
sines oF retraction, a5 50 t077 and 78, divide the dif-
ference Detreen the fines ot refraction 77 and 78, 25 the
line CM is dirided by those interrals, rou will have
7
733 7723 7733 773, 78, the tines ol
retraction ot thole rars out ot Clals into Rir, their
common sine of incidence beins 50. S0 then the lines
OE the incidences oF all the red makins rays out ot
Cilals into Rir, vere to the lines oF their retractions,
not greater than 50 10 77, nor le(s than50 +0775, but
raried trom one anocher accordins to all interme-
diate PFOPOTtIONS. And the sines oF the incidences
ot the sicenmakins rays vere to. the sines ot
their retractions in all proportions From that ol 50
1077, Unto that of 50+0 77:. And by the like limits
abore mentioned ivere the retractions of. the ravs De.
longins tothe rest ot the Colours detined, the lines ot
the red-makcins rays extendino From 77 t0775, thole
ofthe oranse- makcins From 775t0 77, thoseofthe vel-
lor malcins From 77: 10773, thole ofthe green makins
Erom 77: t077= thole otthe blue makins From 77 = t0
75, those oF the indico-makins From 773 t0 775, anc
thole oFthe violet From 773 1078.
Phese are the Laws ot the refractions made out ot
Colals into Rir, and thence by the three AXioms ot the
tirst Boole the l’aws oF the retractions made out of Air
into Cilals are catily derived.
a X L L. HL.