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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 40, page id 1677894601:0212
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=212
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F
40
spread and intertere rith one another as betore. And
For that realon alfother muct become diltincter and vi-
sible to tar greater Numbers. But vet the riolet DeiMB
obliquest wrill be Comethins more dilated in provortion
to its extent thenthe other Colours, and lo very apt to
appear at the exterior verses ot cheirtute.
Alterwards, by a greater obliquity ot the rars, the
violet and blue become more sensibly dilated than the
red and rellorr, and (o beins turther remored from the
center oF the Rings, the Colours imust emerse out ot the
wrhrite in an order contrari to that irhrich cher had be-
Fore, the riolet and blue at the exterior limbs ot cach
Rins, and thered and yellor at the interior. Andtherio-
let, by realon of the sreatest obliquits ot its rays, beins
in proportion most ot all expanded, ill soonest appear
at the exterior limb of cach irtrite Ring, and become
more conspicuous than the rest. And the sereral Series
oE Colours belonsins to the sereral Rings, willu by
their untoldins and spreadins, besin asain to intertere,
and thereby render the Rings lels dictinet, and not visi-
ble to lo great numDerS.
IE instend oF the Prisins the Object-glases be made
ule ot, the Rings irhich they extribit become not wrhite
and distinet by the obliquits oF the Fse, by reason that
che rays in their pallase throush chat Air irhrich inter-
cedes the Crlases are very nearly parallel to thole Lines
in Which ther rere tirkincident on theCilabes, and con-
sequently the rars indued ith leveral COloursare not
nelined one more chan another to chat AIr, 25 it hap.
pens in the Prilms.
Lhereisyet another circumstance otthese Lxperiments
to be considered, and chac is irhiy the black aud erhite
Rin85