130 REPORT—1904. 
YTTRIUM—continued. 
| Reduction to 
Wave-length Intensity Bass Lohse ee Oscillation 
(Kayser) and Renaviand. Are Spark [ Frequency 
Arc Spectrum | Character Waschek ee | oe in Vacuo 
Xr 
} 
4275°650 1 1°17 (6:5 23381°7 
74:346 2 x as 88-9 
72°295 2 “4 a 234001 
69-001 1 5 a4 18:2 
67-085 3 ie 09 28°6 
51:343 5 4251°39 | 99 6°6 23515°3 
50°532 1 TeLGs ees 19:9 
41:924 i! oy das 67°6 
35°852 3 35°94 oh aS 23601°4 
32-709 2 oF 35 18-9 
31:461 1 on Fp 25:9 
29°351 1 ap 55 37°7 
24°396 33 ” ” 65°4 
20°779 4 20°81 ” ” 85:7 
17:960 3 “5 5 23701°5 
13°698 3 a Pe 25°5 
13:174 2 ” ” 27:9 
09:872 1 55 aA 471 
04°847 4 04°84. ” ” 75°5 
4199°442 3 4199-46 115 | 6:7 23806-°0 
77°684 5 77°65 af, 33 23930°0 
74:287 4 74°31 B 3 49°6 
* 67:670 3 67°81 114 A 87°6 
57°786 2 ae 3 24044°7 
43°017 6r 43°03 AA 6:8 24130°2 
28°472 6r 28°49 5 Bs 24215:2 
25:079 4 25°10 1:13 ss 35:2 
10°964 3 ao aD 24320°3 
06°552 2 ” » 44°5 
* 02°548 Tr 02°60 as = 68:3 
4095'617 1 69 24409°4 
* 83°862 5 83°89 Pr * 79°7 
§1°391 3 1:12 a 94:0 
81-089 2 ” ” 96°4 
* 77-522 6r 77°54 a 4 245178 
65°159 ul 65:20 oe a5 92°4 
48-004 2 47°98 ~ 7:0 24696°5 
* 47°774 4 47°81 IEA Wi 97°9 
44-407 2 AS 5 24718°4 
44-235 i} ape | Cees 19:1 
* 39:°981 4 4040-0 es Ss 456 
30°011 3 a5 es 248068 
3987°652 3 3987°4 “1 yes 25070°3 
* 82-746 6 82°75 1:10 ” 251012 
78°775 1 78°74 4 BS 26°3 
73°597 2 BS . 59:0 
67°847 1 1:09 ss 95°5 
55°237 3 » 7:2 25275°7 
§4°431 1 BS os 80°9 
* 61-739 3 51°76 5 ‘ 98-1 
50-499 5 50°51 ” ” 25306°1 
46°350 2 + rs 32°6 
30°799 4 30°84 cr) ”? 25432°9 
* Rowland: 4167°737, 4102:541, 4083-783, 4077-498, 4047-823, 4040-013, 3982-742, 
3951°765, 3950-497. 
