{Ue REVORT— 1904. 
RUTHENIUM— continued. 
Spark Spectrum Bes 
Wave-length Intensity Oscillation 
(Kayser) and Sa |) edeency, 
Are Spectrum Adeney Peco ead Character | , + to in Vacuo 
*3362°142 33621 4 0°94 | 8-4 29731°7 
61:295 3361°30 61:2 2 a 5 34°5 
60°20 60°0 1 > “p 42:0 
* 59-230 59°23 59°30 6 ” 8°5 592 
58°110 0 | ” ” 70:2 
56°598 2 aS este 838 
56327 56°3 2 + “5 86:1 
55°803 55°7 2 A | 90°7 
54001 2 an x 29806°6 
* 53°776 53°6 4 + a 08°3 
53°444 53°44 53°3 2 ” ” 116 
63:°122 1 ry of 14:5 
* 52-060 52°0 4 a “5 23°9 
50°681 2 ss ae 36°3 
50°363 50°36 50°30 0 rh 2 39°1 
50°236 2 29 “p 40-2 
49-822 49°82 0 ” ” 43°8 
* 48°833 2 9 ay i 52°6 
* 48145 | 48°15 48:0 2 4S * 58°8 
* 47-748 * 47°75 47°6 4 “ is 62°4 
46°360 0 of of 73°9 
* 45°450 45°45 45°3 4 ” ” 83°7 
44:934 2 “5 fF 87:5 
* 44°666 44°67 zt os a 89:8 
43°32 43:2 2 a rr 92°9 
42-999 0 “p eH 29904°8 
42854 42°85 42-7 0 less Pee | 06°4 
* 41:809 41°81 41°7 4 | 99 a» | 15°4 
* 41:361 413 1 2 “ 19°3 
* 41:230 2 rh er 20°4 
39°932 39°93 39°8 2 ” 255) 0 37°6 
* 39°691 39°69 39°72 6 ” ” 34°4 
39:092 0 ” | ” 39°7 
38°849 2 0:93 ep 41°9 
38°3 In es 1! aces 
37:°963 37°96 378 4 PY 3) ees 49°9 
36°774 36°6 3 Sen Takes 60°6 
36°296 2 1 We tone Reuss 64:8 
* 35°822 35°82 35°7 4 ” ” 69°1 
34°764 0 Be =p 78°6 
* 32°768 32°7 2 os co a) 966 | 
32°483 0 op A 99°22 | 
* 32:186 32:1 4 “5 oS 30001°8 
312 1 so TON 5y 
28-583 2 pallies 34-3 
* 27°831 27°6 + Seiae Iss 41:1 
25:373 25°37 25°4 2 aa sh 53°3 
* 25°136 25°14 25°0 + sf | Sis 65 3 
24:509 24°51 24°6 0 as | of 71:3 
24:077 2 as a 74:9 
23-226 4 as | 3 82:6 
22°368 22:2 4 ry) a5 90°4 
* Rowland and Tatnall: 3362°151, 3359°239, 3353°790, 3352°075, 3348847, 
3348°153, 3347°757, 3345°457, 3344°679, 3341°811, 3341°365, 3341230, 3339°690, 
3335°836, 3332°781, 3332°190, 3327°843, 3325°136, 
