232 REPORT—1890. 
NICKEL—continued. 
Raienatty. and ' hemes and 
Jharacter | Oscillation aracter | Oscillation 
Wave-length ieteacsey Wave-length Frequency 
Spark | Are Spark | Are 
29343 1 34069 2557°5 1 39088 
§2928°4 *6 34138 25547 4 39131 
2918'8 *1 34250 $2552°6 *] 4 39163 
2913'2 8 8 34316 25491 1 1 39217 
2906'9 3 6 34390 2545'4 6 6 39274 
2900°6 1 34465 §2543'2 3 39308 
2898°8 1 34486 2539°5 1 6 39365 
2889'1 1 34602 2524-1 1 39605 
2882°2 “ail 34685 2520:0 1 1 39670 
2880°9 All 34700 $2510°6 10 8 39818 
$2865°1 6 34892 2509°6 1 39834 
2863'3 8 34914 $2505-9 6 39893 
2823°9 1 35401 2496°9 1 1 40037 
2820°8 6 10 35440 24836 *6 6 40251 
2807°8 1 35604 2476°6 1 1 40365 
2806:0 “ih 35626 § 24728 8 6 40427 
28050 8 6 35639 §2471'8 1 8 40443 
427747 *4 36028 2455°4 4 1 40713 
2760°4 1 36215 2453°7 1 8 40741 
27587 4 36237 2448-1 3 40835 
2708'3 4 4 36913 §2441°5 1 10 40945 
§2701°2 3 1 37010 2437°5 *10 6 41012 
2700°4 a 1 37021 §2433°9 1 6 41073 
2690°2 1 37161 §2433-2 4 41085 
$2684-0 8 37247 2431°2 1 41118 
2678'8 6 37319 2426°8 1 41193 
2674:4 1 37380 2423°4 1 6 41251 
2672'1 1 37412 2420°8 1 8 41295 
§2670-0 3 37442 2419-0 1 6 41326 
2664:9 1 37513 2416'0 *10 8 41377 
2659'5 3 3 37590 2412°8 3 6 41432 
2655°6 6 1 37645 2412-7 1 6 41444 
2648°6 1 1 37744 24048 1 1 41570 
26468 6 6 37770 2401-7 1 6 41623 
2643-4 1 37819 §2400°4 1 41648 
2641-0 1 37853 2397°2 1 : 41741 
§2639°5 6 37874 || = § 2394-7 1 6 41745 
2636°8 1 37913 23943 8 8 41752 
2632°4 1 37971 || §2394°0 8 8 41757 
2628-4 1 38034 2392°6 4 6 41701 
2626°3 1 38065 || 2392-0 1 1 41792 
§ 26749 6 38231 2388-7 1 1 41850 
2609°6 6 38308 §2388'5 4 1 41853 
§2606°7 1 38351 2387°5 6 4 41871 
§2606°7 1 38360 2386°3 1 6 41892 
2600'S 1 38438 +§2381'8 8 3 41971 
§2593°1 3 38552 | 2378°6 1 1 42027 
$2586°7 1 1 38647 |, 2375°6 1 6 42080 
25844 3 38682 || 23750 8 4 42091 
2583°5 4 38695 2370°9 1 1 42164 
$2579:9 1 1 38749 2369°5 4 42189 
2575°7 4 4 38812 | 2368°9 3 1 42199 
2571°7 1 1 38873 2367°0 4 3 42233 
2568'2 1 1 38926 §$2366°7 4 1 42249 
25657 *4 38964 2358'5 1 6 42337 
2559'S 4 3 39053 2355°9 6 6 42434 
Pa = 
