ON A TABLE OF STANDARD WAVE LENGTHS OF THE M'ECTRAL LLNES. 
119 
i. 
Co. (4) 
Plate (3) 
Mean 
Correction to standard 
4003 




+ 14.033 
•JO.()38 
20.009 
O 
U.GHG 
6. f>T 
1 ?3 1 
21.171 
21.176 
2 1.4 or, 
2LI72 
i 
.439 
/. 
Co. (8) 
Plate 3 
4 
5 
(( 
(( 
Mean 
Correction to standard 
50G0 





+ 4.427 
5oni 
4.586 
4.588 
4.578 
4.5^1 
0.1[)7 
8.G86 
8.0U5* 
8.700 
«.61tG 
1.209 
Co. (6) . 
(6) 
« Phot. 
(( 
C( 
Me 
an 
/ 
5269 
.783 
.781 
.788 
■ 780 
J83 
C 
R 
P 
d 
c 
C 
S 
R' 
I. 
.5270 
.756 
.773 
.757 
.780 
.768 
.782 
.780 
.780 
.774 
Plate 9 .7^6 
« 5 .781 
« 6 .792 
« 7 .798 
« 8 .777 
.788 
.777 
Menn 2) .780 
■■■ ■■■ I Id HTBIPII 
Correction to standard ± .390 
/ 
Mean 
.779 
n. 
Co. 
u 
ii 
a 
<c 
i< 
u 
cc 
Weight 2 
2 
(( 
u 
ii 
a 
(C 
u 
u 
1 
2 
1 
1 
1 
1 
.500 
.515 
.516 
.512 
.500 
.517 
.500 
.523 
5624 
Correction to standard + .255 
5621 
.255 
Mean 
.510 
50 observations in all. 
