FLA^ra SPECTRA AT HIGH TEAIPERATURES. 
1067 
Plate 9. Spectra 4 and 5. 
1.384 
I .5348 
L 
65338 
5270 
[5170 
4th 
5 th 
spectrum. 
spectrum. 
1 
X. 
X. 
! 
1 
5876 
5872 
f5830 
5831 
: 
: < 
^5794 
5794 
f5700 
56.50 
5650 
< 
.5621 
5621 
1 
1 
5585 
.5585 
"5546 
5546 
1 
1 
5488 
5439 
54 b 
5424 
5370 
5337 
5270 
5170 
Description o£ spectrum. 
Edge of band or line upon a band. 
Least refrangible edge of a band degraded to¬ 
wards the red. Appears like a line on 4th 
spectrum, in the upper part of the tiame and 
like a band at its base 
More refrangible edge of a baud, appearing like 
a broad line at the tijD of the flame and as a 
baud at its base in 4th spectrum, the band 
not perceptibly degraded. It is degraded 
towards the red in the 5th and appears as the 
more refrangible edge of a band throughout 
Less refrangible edge of a baud in the most 
intense group. Very strong but obscured, 
degraded towards the red 
More refrangible edge of a band, degraded, 
very strong, broad 
IMore refrangible edge of band, degraded to¬ 
wards the red, very strong 
The same, strongest and most 
this series 
More refrangible edge of 
this group, degraded towards the red, broad 
More refrangible edge of a band, strong 
refrangible of 
the strong-est baud of 
,, ,, ,, ,, bioad 
„ ,, of very strong band. 
Degraded towards the red. Conspicuous in 
the group with 5546 
More refrangible edge of band terminating this 
group in 5th spectrum. Strong 
Alore refrangible edge of a band overlapped by 
5384. Hot degraded 
Line on band of continuous rays 
Line coincident with solar line E. 
Line nearly coincident with and in solar 
spectrum 
Remarks and lines for com¬ 
parison . 
5872. Faint line. Watts 
J 5790. Strong fine line, 
brightest edge of whole 
group. Watts 
1 705. Fine line. Watts 
5644. Brightest edge of 
)> band, Watts 
5580. Edge of band. 
Watts 
5547. One of a group of 
three lines, Watts 
5443. Watts 
i 5391. Edge of band, 
j Watts 
5371. Strong line. Watts 
5269. ,, „ ,, 
6 5167. Line. Watts 
Lines of the Alkali Metals and of Hydrogen, observed in the Spectrum of the 
Bessemer Flame. 
Hydrogen, 
\ 
6564 
Plate 2, .3rd spectrum. Reversed. 
Coincident with the solar line C. 
4861-8 
Plate 8, 1st and 2nd spectra only. Appears as 
Lithium. 
the edge of a band 
6707 
Plate 2, 3rd spectrum 
4132 
Sodium. 
5893 
On every plate. ‘ In one or two spectra the two 
Coincident w'ith D. 
1 
lines are se^Tarated. Generally, however. 
! Potassiiim. 
very broad 
■ 
1 7697 
1 7663 J 
Observed with eye 
4045] 
4042 J 
On every plate strong. 
40451 
404‘^ 1 Dewak i 
G LT 2 
