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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 92, page id 1677894601:0268
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=268
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vals, it with blue they rere totally blue, and (0 ofthe
Other COlours. And wrhien they irere illuminated with
any one Colour, the Squares ot their Diameters mea-
Fured betreen their most luminous parts, vere in the
arithmetical prosrettion of the numbers 0, 1, 2, 3, 4, anc
the Squares of the Diameters of their dark intervals in
the progrestion ot the intermediate numbers ;, 15 237 3:3
But if the Colour as raried they raried their magni-
tude. In the red ther vere largest, in the indico and
violet least, and in the intermediate Colours vellon,
oreen and blue; ther ivere ofleveral intermediate bis-
nesles anlirerins to the Colour, that 15, greater in vel-
lor than in sreen, and greater in green than in blue.
And hence Lhnem that irhen the Speculum iras illumi-
naced rith wrhite Lishe, the red and rellor on the out
Tide ot the Rinos iere produced br the least retransible
rays, and the blue and violet by the most retransible,
and that che Colours ot each Rins spread into the. C0-
Jours of the neisibourins Rines on cither side, atter
the manner explained in the trst and second Part ot this
Book, and by mixins diluted one another (o that they
coutd not be distinguistred, unless near the center Wrhere
theravere least mixed. For inthis Obserration I could
sec the Rines more distinctiy, and to a greater number
thanbetore, beins able in the vellor Lighe to number
eishtor nine ot them, belides a taint Chador ot a tenth.
Lolatissy iny selt hor muchthe Colours oF the several
Rings Spread into one another, I meatured the Diame-
ters ot the second and third Rines, and Found them
wrhen made br the contine ot the red and orange to be
the Pame Diameters irtien made by the contine ot blue
erd indico, asg t0 B, ot chercabouts. F.OF iC Wus harc.