124 
REPORT—1904. 
RUTHENIUM—continued. 
Lohse, ‘ Sitzber. kaiserl. Akad. Wissensch. Berlin,’ xii. 1897. 
Exner and Haschek, ‘ Sitzber. kaiserl. Akad. Wissensch. Wien,’ ceviii. 1899. 
Kayser, ‘Abhandl, kénigl. Akad. Wissensch. Berlin,’ 1903. 
ee | Reduction to 
park Spectrum ; Vacuum ate 
Wave-length | Intensity Oscillation 
(Kayser) E a | and Sar | Frequency 
Are Spectrum Adeney Haschek | Character | , + 5 | in Vacuo 
2308°1 In 0:69 | 13:0 
2305'85 05°7 2 “5 » | 48356°0 
04:97 ” ” 
03:06 | ” 29 / 
2298°80 2298°7 | 1 ap 13:1 | 87:9 
97:28 97°5 1 a » | 484166 
94:6 | 1 if ae 
94:2 | 1 AS + 
87:2 87:2 2 x 13°2 43708-4 
83:2 | 1 ” ” 
82 00 81:8 2 “3 * 43808-0 
81-7 | 1 ” 2” 
79°7 1 0” ” 
79°4 In » 
| 8-7 In . S 
| 72:3 In 0-68 + 
68-26 68:3 1 a5 isd 44073°4 
63°73 63°6 1 aa alas 44161°6 
| 61:1 1 ae ee 
| 51:7 1 ” | ” 
YTTRIUM. 
Reduction to | 
Wave-length | Intensity anateen Lohse Neonat Oscillation 
(Kayser) and Tisneriand Are Spark Frequency 
Are Spectrum | Character THaschor x: Ae | in Vacuo 
my TF 
6701-188 2 | 182 4:0 | 14918-7 
6687°892 2 a “ 50°6 
56°056 1 181 | 4:1 15019°8 
50-880 1 ” ” 33°9 
13-988 1 1:80 a 151154 
6585:077 1 1:79 5 81-7 
77:096 1 a5 a 15200°2 
64:059 1 1:78 +5 30°4 
57:568 2 ” ” 45-4 
38-797 3 | ” ” 89-2 
05°611 1 | 1:77) 4:2 15367'1 
6437:414 1 | L75'e 55 15530°0 
35226 5 a5 re 35°3 
02°229 33 1:74 ” 15615°4 
6396°588 1 | of | > 29°1 
6275:214 i | 171 | 4:3 15931°4 
36°962 b 1:70 | 5 16029°2 
22-787 4 169 | 4-4 65°6 
18-150 b 39 3 viv) 
| 00:043 b AD ” 16124°7 
6191:930 1 1:68 x 45:7 
