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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 85, page id 1677894601:0105
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=105
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65
to be derired Erom (ome other cause than the new mo-
difications ot Liohe by refractions and MadorS.
TF it be asked, Whac then is their cause d I anfivei,
That the Paper in the posture de, Deins more ob-
lique to the more retransible rars than to the lels re-
Fransible ones, is more Aronsly illuminated by the lat-
ter than by the former, and theretore the lels retran-
sible rays are predtominant in the refected Light. And
erhrererer they are predominant in any Light they tinge
it with red or zelloir, as may in lome mealure appear by
the Airst Proposition ot the Arst Book, and will more Fully
appear herealter. And the contrary happens in the
pocture oF the Paper oc, the more retransible rays De-
ins then predominane wrhich alrars tinse Light wich
blues and riolets.
E Z P F R. IV.
TheColours oF Bubbles With Wrhich Childien play
arc rarious, and change their situation variousr, with.
out aur sespect to aur contine ot Badow. IF such a
Bubble De corered rith a concare Gilass, to kecp it From
Deins agitated by any ind or motion ot the AIr, the
Colours rill Rorrly and regularty change their situa-
tion, eren hilsthe Fre, and the Bubble, and aIl B0.
dies vrhich emit any Light, or cast any Chadou, re-
mainunmored. And theretore their Colours arise From
Pome reoular cause ertrich depends not on any contine ot
Padtor. Whatthis cause is wrill be Merred in the MexF
BoOk.
T0