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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 91, page id 1677894601:0267
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=267
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Oc
crealed or diministred, the Diameters oF the Cireles rere
increased or diministied proportionally.
OB5.
IV.
Bothe analoor Betwreen these Rinos and those de
Seribed in theObservations oF the ArstPart OF this BOOk,
lEuspected that there rere manr more of them erhich
Epread into one another, and by intertering mixed their
Colours, and diluted one another (o that ther cousd
not be seen apart. Pviemed them theretore throuoh,
Prism, 25 I did those in the 24th Obserration oF the
Arst PaxE OF this BOOK. And Wrhen the Prism Was (O
placed as by refractinq the Lighe oF their mixed C0-
lours to separate them, and distinguistr the Rings trom
onc another, as it did those in that Obserration, I could
then sec them distincter than betore, and casily num-
per ejoht or nine ot them, and Cometimes trrelve pr
thirteen. And had noc their Lixhe been (0 very faint,
Iquection not but that I mighe have scen many more.
BS
Plucino a Prism at the Windom to retract the intro-
mitted beam ot Lioht, and cast the oblone Spectrum
OF ColourS on the Speculum: I corered the Speculum
Wvich a black Paper irhich had in the midale ofit a HIole
to let ans one ot the Colours pals throuoh to the Spe
culum, Wrhils the rest ivere intercepted by the Papei.
And nou I Found Rinos of that Colour only irtrich Fel
upon the Speculum. IF the Speculum iras illuminated
vich red the Rinss ivere totally red rith dark inter-
Nn 2
Val5,