ON WAVE-LENGTH TABLES OF THE SPECTRA OF THE ELEMENTS. 231 
NICKEL—continued, 
satay and cae eeey and 
r aracter | Oscillation aracter | Oscillation 
Wavelength) js Frequency Ee a requency 
Spark | Are Spark | Arc 
35073 1 1 28503 3250°4 4 3 30760 
35059 1 3 28514 3247-8 1 1 30781 
3501°8 3 4 28548 32426 6 6 30830 
3500°0 8 8 28562 32342 6 6 30910 
$8492'3 10 10 28625 §3232'6 8 10 30925 
384852 3 3 28684 3226°3 1 1 30986 
34834 8 8 28707 32246 4 4 31002 
3471-9 8 8 28793 3227-4 3 3 31036 
3470°8 *3 1 28803 3217°4 3 31071 
3468°9 3 4 28818 32166 1 1 31079 
34668 3 3 28836 32160 1 31081 
134657 6 8 28850 §3213°7 3 31107 
$3461°7 10 10 28883 32123 1 31121 
34579 10 10 28911 3201°5 1 31226 
$3457°7 *3 8 28913 §3796°6 6 6 31273 
34535 4 4 28948 31949 1 4 31290 
$3452°9 3 4 28953 3183'S 1 6 31399 
t73452'3 10 4 28958 §3182'6 1 1 31411 
34457 10 10 29013 31812 1 31425 
3441-6 1 29048 3179'2 *6 6 31445 
$3436°7 8 8 29089 3158°9 *3 3 31656 
$3433°0 10 10 29121 3145'5 3 4 31781 
134234 10 8 29205 31340 1 1 31898 
3420°6 1 1 29224 §3733°6 10 10 31902 
3413'S 10 8 29284 8113-7 3 4 32106 
34134 4 10 29288 §3705°0 3 6 32196 
34129 8 8 29292 3101°4 8 8 32233 
3409°0 1 3 29325 8101-4 6 6 32236 
3406°6 6 6 29346 3098"6 4 32262 
$3404°5 3 1 28364 3096°6 4 32283 
3402'S 1 29379 3086°6 8 32389 
3400°5 1 3 29399 38080°3 6 6 32455 
3392°4 8 8 29469 30642 6 6 32625 
3390°4 8 8 29486 §3057°2 8 32700 
$3380°0 10 10 29577 80539 8 6 32735 
33740 4 4 29630 3050°4 8 8 32773 
3373'6 1 4 29633 §3044°5 4 4 32836 
3373'3 6 6 29636 3037°5 8 8 32912 
33713 6 4 29653 3031°4 4 4 32978 
§3368'9 8 6 29674 8018'S 6 33116 
$3367°2 1 8 29689 8017°5 10 10 33196 
8365'S 4 4 29704 30032 8 8 33288 
3365'1 4 4 29708 8002°4 8 8 33300 
3361°0 3 6 29744 §29941 6 6 33389 
$8360°9 6 8 29745 2992'2 6 8 33410 
3358'4 1 3 29770 2988'0 1 33457 
3349'S 3 29844 2987°7 *3 33460 
$3327°6 6 4 30097 29836 4 6 33506 
3319°7 6 6 30114 §2987°2 6 6 33533 
3315°7 6 6 30156 2968°7 *3 33674 
8312°4 1 30180 2957°'8 1 33799 
$3317°8 3 1 30186 29545 *3 33836 
3290°4 1 30385 2947°14 4 33921 
8282'2 3 4 30458 2943'5 8 10 33963 
3274°4 1 30531 §2938°7 1 1 34018 
§3270°6 1 1 30566 §2936'3 *8 34046 
