276 
Scientific Proceedings, Royal Dublin Society. 
QUANTITATIVE SPECTRUM OF T'HoRIUM NitRATE—continued. 
Scale 
Measure- 
ment. 
356°84 
358°89 
379°70 
388°38 
395°14 
397°44 
404°15 
404°64 
407°10 
408°47 
412-01 
413°32 
429°94 
432-16 
437°81 
438°37 
443°82 
448-96 
449-15 
457-72 
462°80 
468-70 
471-52 
476-05 
479°91 
Wayvye- 
length. 
3741°4 
37115 
—e- 
3538°9 
3470°1 
3417°1 
3402-8 
Bea De a7 228 
3354°8 
3351°4 
3334-7 
3325°3 
3300°6 
3290°7 
a Ge 
3188-4 
3174:4 
3141°9 
3139-4 
—————— oes 
3108-4 
3079-0 
3078°8 
3034°2 
———— jf 
3008-6 
2978-8 
29656 
2943°0 
2925°2 
Intensity 
and Per- 
sistenvy. 
6 x 
3x 
10 x 
5x 
W5¢ 
an 72 
8o 
46 
4o 
4o 
12 x 
10 ~ 
5X 
1x 
20 
4o 
Scale 
Measure- 
ment. 
480-56 
485-51 
486-08 
492-03 
493°13 
494°12 
498-43 
500°72 
515-90 
516°55 
517-75 
518-80 
520-00 
520°86 
622°12 
523°18 
526-90 
628°85 
530°36 
530-90 
532°56 
533°75 
536°07 
536°87 
538°66 
539°13 
Wave- 
length. 
2899°3 
2870°5 
2864°8 
2861°5 
2842°9 
2832°5 
LION (Meee 
2771°6 
2769-0 
2764°8 
2760°5 
2757°3 
2752°3 
ee 
2747°3 
2742°4 
2729-4 
2722°8 
2716°4 
2715-2 
2708-4 
2704-1 
2695°3 
2692°5 
2687-0 
2685-0 
inebdnalito ears 
Intensity 
and Per- 
sistency. 
1 
6 x 
29 
ay 
1@ 
3X 
26 
LX 
3x 
aX 
2x 
2x 
WR 
3X 
3 XxX 
2x 
3 x 
2x 
2x 
1x 
2X 
3X 
26 
3p 
6 > 
1» 
