Opticks 1717 - Up

with the deep& violet in that
by the, farce Argument ) the dr
gions betWee G Nld H fllall
g;lrith the intermediate Calours ill. t-he order
wllich their degrees of I%efiangib
that is, in the progrefs from c to
the infide of the BOW to the OUtii
der9 red, orangeg yellow, green, bh~, indigo,
violet9 And fince thefe four Li.nes 0 8 OE:,
Qp G, 0.1-3[, may be iituated any ~krc in the
abovemention’d conical Sqjerficies, M7hat is Said
of the Dqx and Colours in theft Lines is tO
be underfto’od of the ps a~lcl. Colours every
pdlere jn thok Simper
Thus jhall there be mahe TWO IZQU7S of Co-
Pours, an interior and lkongcr, by OX l%cflexiaq
in the ,drops 9 and an exterior and fainter by
Q 3 for ,rhe Light becomes fiintcr by every
&xion. And their Colc~urs MZ lie in a CQII~
rigry order to one another, the red Of bat‘fi
Bows bordering upon the Space Ci, I:; which is
between the Bows, 1 The breadth of the jute,,
rior ][ZQIJ~ $3 0 17 meaiilred crofs the Colours
ihall be p Degr. 4f’Min: and tire breadth of tha
exterior G 0 I-3 fhall be 3 Dcgr. 1’0 ‘Min. and the
diiklce between them G 0 .V fllall be 8 Cr. xg!
&En: the’greateii kkmi-diameter of the innerrhoit,
that is, the Angle 1) 0 :&I‘ being 42 Er. 2
,Min, and the leait Semi-djameter of the outer-.
ma;lt P 0 (+, being 50 G-r. 57 Mi11, ‘j”‘hefe are
tkg MeaSures of the KOM~S, as they umuld be
~wa the SW but a po.int ; fm by the breadth
of his Body the breath of the &XVO will bc in-
1 w-&j. wpj” lgleir (i/&ncfg $~ccJ-~~fid by half 4
D~gw, \