REPORT—1904. 
RUTHENIUM— continued. 
Spark Spectrum 
Reduction to 
* Rowland and Tatnall: 
3223°394, 3221°311, 
3201°631, 3196°725, 3192°191, 3190-096. 
Wave-length Intensity a Oscillation 
" ee) Fee and es Frequency 
re Spectrum Adeney Heschel Character | ) 4 te in Vacuo 
3223°723 0 0:91 | 89 31011°1 
* ~ 23'393 3223°39 32232 ae | 3 14:3 
22:07 21:9 2 a oe 27°1 
21°493 21°49 21°3d 1 “5 a 32°6 
* 21-303 2 m5 “A 34-4 
20°899 20-90 2 0:90 “5 47°1 
* 20-195 20°20 20'1 2 on “5 45-1 
19°49 194 2 “0 a 519 
19:274 1 op * 54:0 
18-9 1 ” ” 
17:96 Vien 2 Of er 66°7 
* 16°641 16°64 16°5 aa 3 7 79:4 
16-0 1 | ” ” 
15613 0 | * 7 89-4 
14-475 14:3 2 A —- 31100°4 
13°33 13°3 1 “ a 11-4 
* 13-098 13°10 13:0 3 > “5 13°7 
12°30 ” ” 
12:0 Ir In mr 5 
11°38 11:3 if “3 a 30°4 
10-95 ” ” 
10°6 Pd 1 oh A 
10:287 10°29 10°1 2 ” , 41:0 
09-758 09°6 1 OD or 46-1 
09:43 ” ” 
08°865 1 3 AD 54:8 
08542 3 tp 3 57°9 
08-405 0 = ep 59:2 
07°751 07°75 07°7 0 43 F 65°6 
07°43 07°3 2 bs a 68°9 
06°82 06:7 2 | U3 5 74:6 
05-428 05-43 05°3 2 | 88-2 
05:08 05:0 fe 5 915 
04°36 04:2 2 es 3) 98-6 
03°62 03°6 2 “9 “ 31205°8 
03:0 1 ” ” 
02-705 02°5 2 * 5 14:7 
* 01:604 3 5 a 25°4 
01°372 01:37 01:38 2 + = 27:7 
3199-238 | $199-0 Ir 0 45 a 48-5 
319874 98°6 2 7 53°4 
98-437 98-5 2 = e 56:4 
97-603 O77 0 s my 64:5 
* 96-718 96°72 96°5 a “ *3 73°2 
95°85 95°6 1 uf a 81:7 
95-438 1 5 3 85:7 
95°137 95°14 95-1 0 : Ys 88°6 
93°617 93°5 2 5 = 31303°5 
92°52 92°5d 1 D 53 04:5 
P92 171 92°17 92-1 2 F = 07°9 
91-900 91°7 2 gir el ae 20°4 
91303 1 eal ees 26:2 
* 90-088 90:09 89°9 4 ie as me 38°2 
3220°199, 3216°646, 32137105, 
