72 REPORT—1904. 
RUTHENIUM—continued. 
Spark Spectrum Beets fe 
Wave-length Intensity | = Oscillation 
(Kayser) I and Frequency 
Arc Spectrum Adeney Exner and | Character | , + ht in Vacuo 
Haschek A 
| 
4531:035 4531°04 4531°2 of 1:24 | 61 |  22063°9 
25°616 0 | 9s 90°3 
= 21-110 21°11 21°3 4 > ” 22112°4 
Sal O77 17°98 18-2 4 ’ ” 27°7 
* 17:060 17:06 173 4 ” ihe 322 
16°421 16°42 166 2 45 or 35°3 
= N33 11°35 115 4 | 99 ” 60-2 
* 10°25) 10°25 104 a | 9 % 65°6 
08°715 08°72 08-8 2 ae oh th 732 
08-192 08°3 ] [has a5 75°7 
*4498 322 4498 32 449830 4 1-23 = 22219°4 
91-846 91°85 92-1 2 of 6-2 564 
90°396 90°40 90°5 2 re » 63°5 
88°550 88°50 88°7 4 ” ” 72°7 
82°194 82°19 82:3 2 Len A 22304°3 
* §80°603 80°60 80°7 4 1 er 3 12:2 
79°80 79°7 1 on ree 16:3 
75493 75°7 2 ss Dex 37°7 
* 74:093 74:09 74:2 4 [i gs Ey es 44°7 
71:200 0 lees “5 59-2 
70°69 70°8 Jd a ae 61°7 
67°427 67°6 2 | 1:22 % 78°0 
66°511 2 ae: 99 82:7 
65°649 65°65 1 ” ” 87:0 
64°661 64°66 0 9 ” 91°9 
* 60°209 60°21 60°19 6 % ” 22414°3 
535. In a F 
* 49-509 49°51 49°50 t Bs = 68-2 
* 44-674 44°67 44°8 4 ce - 92°6 
43°3 In ob is 
40°245 0 oe pom eg. 50 Si 
* 39:938 39°94 39°98 5 | ese 2» | 166 
39°574 2 “ os | 18°5 
38°6 1 a5 BS | 
30°478 u 121 | 63 64°6 
* 28°624 28°65 4 “5 5S 74:1 
26°182 26°18 1 % ’ 865 
24°958 252 3 oy , 92°8 
23°143 23°3 1 es : 22602°0 
* 21:629 21°63 21°7 a | 95 3 09°8 
21-006 21:01 21:2 4 3 * 13:0 
20°634 20°63 2 * ” 14:9 
14:607 2 of or 45°7 
13:°458 2 ap = 516 
12058 0 ties => 58°8 
* 10°207 10°21 10°17 6 lees ” 68°4 
09-1 In icing aw 
05°809 052 0 of 7 91:0 
02°7 In 5 a3 
4399-751 99°75 00:0 1 % ” 22722°3 
*% 97:956 97°96 43983 f 9 » | 315 
96868 | 0 “5 cathe el 37-2 
* Rowland and Tatnall: 4521°124, 4517-985, 4517-063, 4511°364, 4510-265, 
4498°316, 4480°617, 4474:100, 4460°194, 4449°509, 4444°681, 4439-935, 4428-631, 
4421-626, 4410°193, 4397°966, 
