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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 117, page id 1677894601:0137
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=137
# Source image: https://digitale-sammlungen.gwlb.de/content/1677894601/jpgs/default/00000137.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 28 lines, status machine
# Lines: 28 recognised, mean confidence 0.89
# 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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# After the first blank line: the recognised lines in reading order, one per line.

T1
Dc r. trie Cirele r may be L, the Circle t2, theC irele.
62, and the Circles r, 9 and p, 5, 6 and 10. Then L
find Z the common center ot sraritr ot these Circles,
and throuoh Z drawins the line OP, the point Y FaIIS
uxon rhe circumterence betmeen F.and l, some thine
nearer to F. Than to F, and thence L conclude, that the
Colous compounded ot thele ingredients riil be an
oranse, vergins a little more to red than to vellor:
AICO I find that OZ is a little less than one halF ot
DT, and thence I conclude, that this oranse hath a
ditele less than halE the Fulness or intenlene(s oF an Un-
compounded oranse; that is to Cay, that it is such an
oranse as may be made by mixins an homogenea l oranse
vith a g0od irhite in the proportion of the line OZ 10
h. linc Z Y, this proportion beins not ofthe quantities
oFmixed oranse and irhrite porrders, but ot the quan-
tities ofthe lighis retlected from them.
Phis Rule l conceire accurate enoueh for practile,
choush not mathematicallr accurate; and the truth ot.
it may be sufticiently proved to sense, by Roppins any
et the COlours at the Lens in che centh Fxperiment ot
this BOOk. For the rest ot the Colours wrhich arc not
Atopped but pass on to the Focus oF the Lens, wii
there compound either accurately or very neartr such.
2Colour a5 by this Rule oueht to retult trom their
emixture.
PROFo