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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 38, page id 1677894601:0210
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=210
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Non it this Pable be compared ith the bth Scheme,
vou rill there sec the constitution oF cach Coloui, a5
to its Ingredients, or the original Colours of which it
is compounded, ind chence be enabled to judge of its
intenteness or imperfection; irhich may suftice in ex-
plication ot the ath and rBth Obserrations, unless it
De Further dehred to delineate the manner hou the CO.
Jours appear, when the trro Object-Citasles are layd
uxon one another. Y0 do Which, let there be de
icribed a laroe AEC OF a Circle, and a Areighe Linc
ertrich inar touch that ArC, and parallet to that Tan-
sent severat occult Lines, at such distances From it, 25
the numbers set againstthe several Colours in the Table
denote. For the ArC, and its Tangent, will reprelent
the superticies ofthe Gilasses terminatins the interjacent
Air; aud the places irhere the occult Lines cut the
AEC Wvill BOW at what distances From the Center, Or
Point et contact, cach Colour is resected.
Phere arc allo other ules of this Pable: For by itS
altistance the thickness of the Bubble in the Tgth Ob.
serration as determined by the Colours irhich it ex-
Thribited. And (O the bignelS OF thC PATES OF natUTAL
Bodies may be conjectured by their Colours, as MaII DC
hereatter ern. AIIo, if tiro or more very thin plates
De lavd onc upon another, lo asto compole one plate
equallins them all in thicknels, the relultins Colour
may be herebr determined. For instance, MI. Hooke in
his Miscroeraphia obserres, that a Faint yellon plate ot
Muscory- sla(s lav dupon a blue one, constituted a very
deep purple. Therelloi ofthe ArH Order is a faint
one, and the thiekness of the plate exhribitins ic, ac
cordins to the Table is 43, to which add 9, the thick-
nels