574 
MR. J. NORMAN LOCKYER ON SPECTRUM-ANALYSIS 
Table II.—Lines interpolated from Curves. 
Section 3900-4000. 
X Coend. 
X Angstrom. 
X Curve A. 
X Curve B from 
Kutherpurd’s 
print. 
Error X Cornu 
— X Curve. 
State in Cornu’s 
Map. 
State in Angstrom’s 
Map. 
State in Standard 
Photograph. 
Intensity in Solar 
Spectrum 
1 = darkest. 
Remarks. 
Absent .. 
Absent 
3900-00 
Absent 
Absent 
Double .. 
3, 3 
3900-6 .. 
3900-60 
0 
Single 
**• 
Single .. 
2 
Absent (I) 
3901-25 
Absent ? 
yy 
„ 
3 
No distinct line in Cornu’s map. 
3903 0 .. 
3903-10 
-•16 
Single.. 
yy • • 
2 
3904-3 .. 
3904-08 
+ •22 
,, 
yy 
3 
3905-9 .. 
3905 80 
+ •10 
1 
3907-1 (?).. 
3907-17 
-•07 
,, 
yy • • 
Double .. 
4 
Identity with Cornu’s line doubtful. 
3907-9 .. 
3908-10 
-•20 
3, 4 
3909-9 (?).. 
9 
3909-87 
+ •03 
Double ? 
yy 
Triple .. 
3, 3 
3911-6 .. 
3911-30 
+ •30 
Single . 
3, 3, 3 
3912-9 .. 
3912-80 
+ •10 
Double .. 
2, 2 
3915-2 .. 
f 
3915-07 
+ •13 
Quadruple 
4, 3, 3, 3 
3917-8 .. 
3917-85 
-05 
yy • • 
yy 
Single ? .. 
2 
Probably double. Represented in 
Cornu as beginning a broad band. 
3921-4 .. 
3921-23 
+ ■17 
Triple .. 
3, 3, 3 
Cornu's line in midst of shading. 
3924-0 .. 
,, 
3923-85 
+ •15 
. . 
yy 
Single .. 
3 
3924 3 .. 
3924-42 
-•12 
,, 
„ 
3 
3925-3 .. 
3925-28 
+ ■02 
2 
3928-5 .. 
3928 62 
-•12 
Double ?.. 
3, 4** 
## Probably double. 
Absent .. 
3931-10 
Absent 
Single .. 
3 
Absent .. 
3936-72 
yy 
4 
Absent 
3939 50 
yy . • 
5 
Absent .. 
” 
3944-61 
» • • 
” 
3 
Centre of a group of four, repre¬ 
sented in Cornu by a single line 
at 3944-2. 
Absent .. 
3945-15 
5 
3946-2 (1).. 
3946-28 
-•08 
Single.. 
yy . • 
3 
Identity with Cornu’s line doubtful. 
3948-9 .. 
3949-10 
-'20 
3 
Absent .. 
3952-65 
. . 
Absent 
4 
Absent .. 
3957-60 
4 
3962 1 .. 
3962-20 
-•10 
Single.. 
yy 
2 
3971-1 (1) . 
3971-40 
-•30 
3 
Identity with Cornu’s line doubtful. 
3974-0 (1).. 
yy 
3974-13 
-■13 
1 
yy • • • 
2 
Probably double. Identity with 
Cornu’s line doubtful. 
3976-9 (?) . 
3977-18 
-•28 
2 
Identity with Cornu’s line doubtful. 
3984-7 .. 
3984-80 
-•10 
. . 
] # „ 
2 
Probably double. 
3988-5 .. 
3988-50 
0 
. . 
yy 
2 
3990-3 .. 
3990-49 
-■19 
. . 
3 
3991-8 (?) . 
3992-25 
— *45 
3 
Identity with Cornu’s line doubtful. 
3995-0 (?).. 
3994-63 
+ •37 
1 
Identity with Cornu's line doubtful. 
3995-80 .. 
3995-25 
+ -55 
• • 
3 
Identity with Cornu’s line doubtful. 
3996-7 .. 
3996-75 
-•05 
1 
Absent .. 
y> 
3998-35 
Absent 
yy 
” 
3 
N.B.—In the case of multiple lines the same arrangement holds good as in the last table. 
