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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 99, page id 1677894601:0119
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=119
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(99
equally distant From aII the COlours, (0 that it mighe
Dc equallr illuminated by them aI it appeared irhite.
And in this last situation of the Paper, if some COlours
avere intercepted, the Paper lost its irhite Colour, and
appeared oF the Colour ot the rest ot the LiohE irhick
ras not intercepted. Sothenthe P’aper vras illuminated
rith Lighes ot rarious Colours, namely, red, vellonr,
sreen, blue and violet, and erery part ot the Light re
cained its prover Colour, until it ras incident on the
Paper, and became reflected thence to the FyC; (o that
if it had been cither alone (the rest ot che Light being
intercepted) or it it had abounded most and been prC-
dominant in the Light rehlected From the Paper, it vould
have tinged the Paper rith its onn Colour; and vet De-
ins mixed with the rest of the Colours in a due propor-
tion, it made the l’aper look white, and theretore by a
composition rith the rest produced that Colour. Jne
sereral parts ot the coloured Lixht refected from the
Spectrum, Wrhilsthey are propasated trom thence thro
the Air, do perpetually retain their proper COlOuIS,
becaule Wrhererer cher Fall uxon the Rres ot any Specta-
tor, ther make the leveral parts ot the Spectrum to
appear under their proper COlours. Pher retain there
Fore their proper Colours wrtien ther Fall upon the la-
per V, and (0 by the contution and pertect mixture ot
chose Colours compound the wrhitenels oE the Ligh
reftected from thence.
E Z P F. R. Z.
et thatSpectrum or lon mae l’a sun sn apoh Fic. 6
the Lens M N abore tour luches broad, and about siX
Fcet