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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 131, page id 1677894601:0307
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=307
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131
intermediate bignesses without chansins the Colour ot
ot any lort ot Light.
When theretore the FPair in the Arst and second ot
thele Oblerrations as held in che irhite beam of the
Suns Light, and cast a Mado irhich iras bordered rith
chree Fringes of coloured Light, thole Colours arole not
trom any newr moditications imprest upon the rayS et
Light by theFlair, but only trom the rarious infections
Whereby the sereral (orts oF rays rere separated From
One another, irhich betore separation by the mixture
OE all their Colours, compoled che irhite beam ot the
Cuns Light, but wrhenerer separated compose Lights
OFthe sereral Colours trhich ther arc originally dilpo.
sed to exhribit. In this 13th Oblerration, irhere the
Colours are separated betore the Lisht passes by the
Hlair, the least retransible cars, irtrich irtien separa-
ted trom therest makce red, vere inflected at a sreater
dictance Fromthe Tlair, (0 a5 to make chree red tringes
at a creater distance From the middle of the Thado ot
thellair; and the most retransible rays wrtrich irhen
Separated make violet, ivere inflected at a lels distance
tromthellair, (0 a5 to make three violet Fringes at a
lels distance from the middle ot the ador ot the Flair.
And other rays ot intermediate degrees ot retransibi-
lier ivere inflected at intermediate dittances trom the
Flair, (0 a5to make frinses ot intermediate COlours at
intermediate distances from the midale of the sracton
oF the Flair. And in the second Obserration, Wrhere
all the Colours are mixed in the white Lisht irhich
Passes by the Flair, these Colours are separated by the
various intlexions of the rays, and the frinses Wrhich
chey make appear all tosecher, and the innermok
35
Frinses