REPORTS ON THE STATE OF SCIENCE. 
IrRIDIUM—continued. 
Are Spectrum 
Spark Spectrum 
Wave-length 
Kayser 
223°645 
23°138 
22°854 
22-600 
21°415 
20-924 
18°593 
17-700 
17°301 
16-905 
16-431 
13°681 
12°629 
12-350 
12-240 
10-131 
09-050 
08-287 
05:837 
05:227 
04-587 
04:230 
02-250 
02-023 
01-027 
00-166 
3199-058 
98-226 
95-882 
93°345 
93°240 
89-486 
88-702 
88-487 
87:267 
Exner and 
Haschek 
21:40 
20°91 
19-66 
18-60 
17-70 
13°68 
12°37 
12-22 
08:27 
07:22 
05°22 
01:02 
00:16 
| 3199-06 
98°23 
89:47 
3223-65 
Intensity 
d 
an 
Character 
ROOK 
—_ 
Crm OrFrR OOF 
RRO 0 
Hewc 
= Oe bo oo onweo 
ey oO 
OOF 
Wave-length : 
nigh Intensity 
ia and 
Exner and 
Haschelk 
3223°6 
23:0 
— 
{ 
22°5 
22-4 
21:3 
20°7 
19-6 
18°6 | 
FNonbhy > 
~ 
i=) 
V3) 2) al 
16°5 
15:2 
ee ee 
Pe 
Se 
See eb 
Character’ 
Reduction to 
Vacuum 
1 
A+ X 
091 | 88 
” ” 
” 9 
39 bed 
3° ” 
” > 
OOF tse 
99 ” 
” 3° 
” 3” 
” ” 
9 9 
ae 8-9 
Oscillation 
Frequency 
, in Vacuo 
31012: 
16°9 
RED ese ~ 
