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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 1677894601:0111
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=111
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(OT)
sare this or that Motion into the Sentorium, and
in thesentorium ther are senlations of thole NO-
tions under EhC FOTIS OF C OIOUES.
PROP. TII. PROB. I.
o define the refransibility of the several sorts of homo-
seneal Lioht ansrverine to the several Colours.
For determinins this Problem Imade the follovins
tixperiment.
F Z P F R. VII.
When Thad caused the rectilinear line sides AF, GTNI, Fig. 4.
oFthe Spectrum et Colours made br the Priim co DC
distinetly detined, a5 in the Riech fixperiment oF the
Arst Book is described there vvere Found in it dII the
homoseneat Colours in the Came order and stvation
one amons another as in the Spectrum ot simple Lignt,
described in the FOUTEM FXPCTImeNE OF Fhat BOOK. FOF
the Circles of irhich the Spectium ot compound Lignt
eT is compoled, and irhich in the midale parts ot
the Spectrum intertere and are intermist with one ano-
ther, are not intermixt in their outmost parts where
they touch thole rectilinear sides AF and CTMI. And
theretore in thole rectilinear sides wrhen distinctiy deti-
ned, there is no new Colour generated by retraction. l
obserred allo, that it any where betureen the trvo out
most Circles PMF and PG A a right linc, 25 Y0, WaS
crols tothe Spectrum, (0 a5 at both ends to FaII per-
vendiculariy uxon its rectilincar lides, there appeared
Nt
OnC