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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 137, page id 1677894601:0157
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=157
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 33 lines, status machine
# Lines: 33 recognised, mean confidence 0.93
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And that this is not only a true realon of thele C0-
COurS, but eren the only realon may appear further
trom this consideration, that the Colour ot homogeneal
Lisht cannot be chansed by the restexion oE natural
Bodies.
for it Bodies by refexion cannot in the least change
the C Olour oF any one sort ot rayS, ther cannot appear
coloured by any ocher means than by reflectins thole
ertrich cither arc of their omn Colour, or wrhich by
mixture nust produce it.
But in trying Experiments of this kind care must be
had that the Lighe De sufficieney homoseneal. For il
Bodies be illuminated by the ordinary prismatick CO-
lours, they ill appear neither ot their omn day. light
COlourS, nor oF the Colour oF the Light cast on them,
but oF lome midele Colour betreen both, 25 I hare
Found by Lxperience. Thus red Leud (For instance)
illuminated erith the ordinary prismatiek ereen iil
not appear cither red or green, but Oranse Or vellor,
Or Detreen vellorr and oreen accordinsly, as the oreen
Liont by irhich tis illuminated is more or less com-
Pounded. For because red Leud appears red wrhen il.
luminated rith wrhite Lighe, Wrherein aIl COrts OF rays
are equally mixed, and in the green Light aIl POrts of
raysare not equaliy mixed, the excels ot the vellon-
makcins, sreen makins and blue making rays in the
incident green Lighe, rill cause thole rays to abound
lo much in the refected Light as to draw the Colour
trom red torrards their Colour. And because the rec
Lead reflects the red makins rays most copiouss in
proportion to their number, and next alter them the
oranse makins and vellor. makins rayS; these rars in
thC