JOoTLej . 
Phil. Trans . 1880 . Plats 30 . 
F to h 
= 
30-0 
1 
h to E 
= 
6 ■ 8 
E to D 
= 
39 ■7 
F 
= 
4-2 4- 
D to C 
= 
29-8 
~b 
= 
375 
C to B 
= 
10 ■ 5 
E 
= 
360 
B to A 
= 
18 ■ 7 
D 
= 
288 
A. to Z 
= 
13 -n 
C 
= 
23 2 
J x 
= 
18-75 
B 
= 
212 
» ,, 7T 
= 
26-10 
A 
= 
173 
„ P 
= 
30-75 
Z 
= 
14-7 
H » *5 
= 
31 ■ 50 
X 
= 
13 7 
« /. 77 
= 
35 -90 
TT 
= 
122 
„ T„ 
= 
36 -20 
P 
= 
113 
.. . <P 
= 
53 50 
r, 
= 
105 
„ » 4> 
= 
55-50 
T„ 
= 
103-5 
■■ tI, 
= 
66-5 
= 
68-5 
~<lr, tJt, 
Prismatic Solar Spectrum, 
■measured, from, no Fhotograph. 
TAfest.^Vevvnuxn- C? lith 
