126 
REPORT—1904. 
YTTRIUM—continued. 
Reduction to 
Wave-length Intensity Ss Be. Lohse eee Oscillation 
(Kayser) an Ean enand Are Spark Frequency 
Are Spectrum | Character : 1 in Vacuo 
iz | |  Haschek A+ a 
| | 
5706926 5 1:56 | 4°8 17517°9 
5675°480 3 1°55 os 17614°8 
75311 2 ” ” 15°3 
69°456 1 | + on 33°6 
68-784 1 a5 a 35°7 
* 63°148 6 | 1-54 op 53:2 
61:107 1 | oes a5 59°6 
57-479 1 - an 70°9 
48-684 5 a a 98-4 
46-909 2 a os 177041 
44°898 4 2 + 10°3 
35-966 1 ” ” 38°4 
33°121 2 a on 47°3 
32°477 2 * of 49°4 
30°353 5 5; 4 56°1 
24114 2 | 55 5 75°8 
10-580 1 1°53 4 17818°7 
06°552 3 “5 4:9 31-4 
5598°537 1 5: 5 56°9 
91-168 2 5 of 80°4 
82-098 5 1°52 ~ 17909°5 
81:295 2 oF 39 12:1 
77°62] 4 > “6 23°9 
67°972 3 +s ae 55°0 
56°655 4 5 = 91°5 
51:209 2 1-51 “ 18009°3 
46:228 4 ss op 25°4 
* 44-818 5 - 5 30:0 
41°852 3 Rees = 39°6 
27°765 6 | 35 H 85°6 
25:°944 2 a5 - 88°3 
21°845 6r +o 18105°0 
13°856 2 1:50 “5 31:2 
* 107115 5 oe N 43°5 
03°665 5 os 5-0 64-7 
5497°637 5 Pr a 84°6 
95-802 2 ” ” 90°7 
93°375 3 os as 98:7 
91°634 2 35 on 18204°5 
80-952 3 Hp x 40:0 
73°596 4 1:49 * 64:5 
66°669 6 ae i 87°7 
38447 4 1-48 A 18382°6 
24:588 3 A 4 18429°5 
17246 2 » 0 54°6 
* 03-003 4 5 xo 18503°2 
5388-623 1 147) 51 52°5 
80°851 3 x5 + 83-9 
5290-004 2 1-45 | 5:2 18898-4 
70°527 3 | 1:44 “a 18968 °2 
69-712 5 | [fs gg a 71:2 
40-958 2 | JCA) IP se 19075°3 
* 05:890 6 | 1:42} 5:3 19203°7 
00°580 5 + oF 23°3 
* Rowland: 56637155, 5544°831, 5510120, 5402-982, 5205°897. 
