ON WAVE-LENGTH TABLES OF THE SPECTRA OF THE ELEMENTS. 91 
RUTHENIUM—continued. 
Reduction to 
Spark Spectrum 
Wave-length ‘ : Intensity ae Oscillation 
(Kayser) i eo and Frequency 
Are Spectrum Adeney Henan and Character | y+ +- in Vacuo 
3321-634 0 0:93 | 8:6 30097°1 
21°385 3321°2 2 A) BS 99:3 
19-944 1 oy ip 301124 
19°655 1 Suimeniiny bss 15:0 
* 18-992 | 3318-99 18:8 6 woe as 21:0 
* 18012 | 18:01 17:9 4 ” ”» 29:9 
17:66 17°5d 2 “ a 33°71 
17:045 17:05 170 1 % a3 38°7 
* 16:523 16°52 16°55 6 “5 “s 43-4 
* 15:590 2 oe = 519 
* 15°365 15°37 15°30 3 ” 2» 54:0 
15181 2 as oh 55°6 
14-203 2 op A 64:5 
12:99 12:7 1 Cpe nih ete 75°6 
12°348 | 1 . 5 81-4 
12-068 0 “4 . 84:0 
11-388 | 0 a 5 90:2 
* 11-090 11:09 11:0 4 ” » 929 
10°220 10:2 0 ” ” 30200°9 
09°965 09:97 0 ate the 59 06:1 
09°38 09:2 1 SAIN Gass 08°5 
09-00 be VES 
08°751 08:8 0 S50. All eones 14:3 
08-122 08°12 08-1 4 oa ay 20:0 
07-679 O77 2 9 Fe 24°1 
06°81 06°6 1 AD er 321 
* 06'305 06°31 06:2 4 » ” 36°5 
05-804 0 o 36 41-1 
05°15 05:1 2 A ce 47:2 
* (04:948 04:9 2 Be a 49°1 
04:72 0 rf “5 507 
04°634 2 3 Be 51°9 
04-418 0 fp Hh 53°9 
* (04:141 04:14 04:0 4 , rs 56°5 
02°312 1 “5 oF 73°2 
01:94 01:9 Pt 1 “5 Bs 76°6 
01:726 01:73 01°6 5 ar a 786 
01°35 Ol-l 2 ys + 81:9 
3299-926 00:0 0 ” ” 95:1 
* 99-479 329948 3299°3 2 0-92 a5 99:2 
* 98-559 98°56 98-4 4 S 6D 30307°7 
* 98-096 98°10 98-0 3 Pts dy | aete U9 
* 97°393 97°39 97:2 3 - 5 19°4 
* 96-786 96-79 96-6 2 Le os 24-0 
* 96-252 96-25 96:1 4 a oP 28°9 
94-926 0 = Pe 41:1 
* 94-269 94:27 94°38 6 re 1 47°1 
92°390 92-1 2 aa nr 64:4 
91°789 91°8 2 a x 70:2 
91°5 In “¢ on 
91-250 2 7 33 750 
91:0 1 %» ” 
* Rowland and Tatnall: 3318:965, 3318:025, 3316°524, 3315°579, 3315°363, 
3311:096, 3306°310, 3304-951, 3304-126, 3299-466, 5298°549, 3298-089, 3297°389, 
3296°780, 3296°248, 3294-233. 
