230 REPORT—1890. 
CoBALT—continued, 
Intensity and Intensity and 
Waye-length Character | Oscillation Wave-length Character | Oscillation 
——, >| Frequency Frequency 
Spark | Arc Spark | Are 
2298'3 1 1 43497 22720 1 44000 
22969 3 3 43524 2270°5 1 44030 
2295°5 38 4 43550 $2266-2 8 44113 
2293°0 6 8 43598 2259-7 8 44240 
229175 6 4 43626 2256°4 8 44305 
2290°9 1 1 43638 2253°2 1 44367 
2289°9 1 1 43657 22448 6 44533 
2287°8 1 3 43697 223474 1 44741 
2285°7 *8 8 43737 22315 1 44799 
2283-1 3 43787 2229°5 1 44839 
2281-9 1 43810 2219°6 1 45039 
2281°5 4 43817 22159 1 45114 
2280°1 3 43844 2214°1 1 45151 
2278°1 1 43883 2205°7 1 45323 
22759 1 43925 2298:2 1 45477 
2275°1 1 43941 2293-1 1 45583 
2274-2 1 1 43958 2291°9 1 45608 
$2273°3 3 43975 2290°2 1 45643 
NIcKEL.! 
* Double. t Also in oxyhydrogen flame. t Also a cobalt line. § Also an fron line, 
Intensity and Intensity and 
Wave-length Character Sy ales Wave-length Character | Oscillation 
——_j7-— | Frequency ——_ + Bréquency. 
Spark} Are Spark} Are 
3857'S 8 8 25913 36241 1 3 27585 
88489 3 25973 t3618°S 10 10 27625 
3837'S 3 26050 $3612°7 6 6 27676 
3831°7 1 26090 3609'S 8 8 27694 
+3806°6 8 6 26263 86086 1 1 277038 
$3783'0 6 4 26426 8601°4 3 27758 
37750 6 6 26482 $3597°0 10 10 27792 
37689 8 26525 3587°2 ots 3 27868 
37364 8 8 26758 35767 8 27955 
3724-2 1 26843 §t3577°2 8 8 27993 
§3721°6 6 26862 3565°7 10 6 28036 
3710°9 1 26940 3561'7: 1 28072 
3697-2 1 27039 35528 1 28138 
3694-6 1 27058 3550'S 1 28154 
3687°6 1 27110 8547'°5 6 6 28180 
38673°4 3 4 27215 3529°9 1 1 28321 
3671-5 1 27229 $3529°2 1 3 28326 
3669°7 1 8 27242 852774 3 1 28343 
3666°9 1 27263 3526°0 3 28352 
3663°4 3 27289 $3523°9 10 10 28369 
3659°3 3 27319 35194 6 6 28407 
3657°5 1 27333 3518-0 1 28416 
3655°2 1 27350 $3514°4 10 10 28445 
3653°0 6 ' 27366 §3513°3 8 28454 
3634°9 4 27503 i3509°7 10 10 28483 
1 Liveing and Dewar, Phil. Trans. clxxix. 231 (1888). 
