180 REPORTS ON THE STATE OF SCIENCE. 
IrR1ipDIUM—continued. 
Are Spectrum Spark Spectrum | Radanmee de 
Waye-length | _ | Wave-length : ie Oscillation | 
Des. Vee ae Raiinteneitya le Intensity; —— = Frequency 
Exner and Cl ate Exner and ies Nee glee aR ENe 
Kayser Flaschel haracter Eiaadhale Character 
| | | 2340-0 2 0°70 | 12:8 | 42722: 
| 39:2 1 ED as Spee) 
2337:°628 | 0 oe cf 65:6 
elope S| aed Fe 3 81- 
34°575 2334°57 1 | Seo We il + or 42821°6 
34406 0 | Ba ot Nike wL nes ‘5 24°6 
33°917 33°95 1 33°8 1 , ” 333. | 
33°372 33°37 1 oy “ 43-7 | 
, 32°7 1 “5 = 56> 
32°3 1 £ - 63° | 
| 31:8 1 a astm hoe | 
30°5 1 os a a 96° 
29-469 0 | 29°5 2 5 5 42915-4 
| 29-0 1 a e 24: 
28°790 0 a sta 27:9 
28-598 0 beats ss. ame 31:5 
28°324 0 ss “A 36°5 
28:1 In “ = 41- 
28:046 0 rs si 41-7 
27:2 2 “0 12°9 57: 
26-0 1 “- sn 79° 
25°8 1 ss i 83- 
25°5 1 os ~ 89: 
25°029 1 ° ~ 97°3 
24°754 0 BS a 43002°4 
24-006 0 24°1 1 . ea 16:2 
23°7 2 + Pa 22° 
22°7 1 oo * 40: 
22°3 1 0-69 5 48: 
21°622 21°61 1 21°5 1 * 35 60°5 
21-481 21°49 1 s oy 63:0 
20:0 1 e 5 UNI 
18°3 1 an 8 43122: 
17°4 2 a > 39° 
16°8 1 + op 50° 
15-46 — 5 ep 75°1 
14:9 4 55 = 86: 
141 1 $5 13-0 | 43200: 
12°5 1 of a 30° 
12:0 1 - 53 40: 
11°6 1 bs a 47° 
10°9 1 3 » 60: 
10-4 1 9 ” 70: 
10-1 1 *p “e 75° 
09°6 1 4 = 84- 
09°4 1 . PH 88- 
09-00 1 55 e 95°8 
08:8 1 rae a ee 43300: 
06°7 1 ” % 39- 
05:54 1 05°5 In ss 95 60:8 
04:6 Tr J 34 » 78: 
04:30 2 | f |, Sas hip IRs 84-1 
| 04-0) | 1 erst Ne ee 90- 
01:5 he lee » | 43437: 
