ON WAVE-LENGTH TABLES OF THE SPECTRA OF THE ELEMENTS. 145 
IRIDIUM—continued. 
Are Spectrum Spark Spectrum | 
» ete ee | Reduction to 
E “9. Vacuum ; 
Waye-length Inten- titel Inten- ee. Inten- Oscillation 
. EE Ci ol SIL? ||yabaeieenas Si tive pee es Lene Oe Brequency 
> ae Ceol and ae and and in Vacuo 
Kayser ey Cha- aaa Cha- Lohse Cha- Kip te eee 
y Haschek | 22¢ter Haschek | 72cter eee | mR | 
Ea : ee IE = aes 3 
; 3490°5 1 O975 e851 28652- | 
| 3488-727 3488-73 3 88-7 1 » ” 55:7 | 
| 88-2 ln Fae Bs 60: 
| 87-6 1 + A 65° 
86-2 1 55% Nie os lide 
85-660 85-68 3 85°6 1 2 ” 80°8 | 
84-649 84:66 a 84°6 1 348465 | O-1 PP a 89-2 
84-256 84-26 3 84:3 1 84:21 | O-1 a5 1) [hens 92°5 
83°63 i ees oe 97-6 
83-2 1 A = 28701°1 
82-760 82-78 4 | 82°73 | O-1 5 04:7 
82°5 1 | Bs 3 O7- 
| 81:5 1 He tee 3 iss 
81:35 | Oln | ,, “¢ 16: 
81:254 81-26 3 Las - 17-2 
80°7 In of Ba 22: 
79:9 1 2 2? 28° 
| 79:4. 1 79°50 | Ol os Be 31-7 
77:930 1 78:0 2 | 77:90 | O-In 3 3 44:8 
76-611 76°60 3 76°7 2 76°62 | O-ln is a 55-6 
76:3 1 2? 2 58: 
76-182 76°17 1 ” » 59-1 
| 75°8 1 Ps sae 62- 
74:96 | O-In a 3 69-2 
74:5 1 3 rc Tis 
74:36 | O-ln Ps = 74-2 
73°6 1 o 5 80- 
73:3 1 33 5 83- 
72-98 1 aes, 1 i is 85-6 
72-0 1 - - 94- 
70°85 | 0-1 ” 8-2 28803-2 
70-2 1 ” ” 09- 
69°79 2 3 33 11-9 
68-749 68°75 2 33 sf 21:5 
68-02 1 68-1 1 ‘s an 26:7 
67-1 1 Rs of 34: 
66-2 1 ” ” 42: 
65-390 65°39 3 65:5 2 65°38 | 0-1 > 2 48°6 
62°23 | 0-1 53 7 74:9 
61:8 1 $5 74 79: 
61:3 1 “ on 83- 
60-0 In 3 as 94- 
58°8 2 58°85 | O-1 0-96 A 28903°1 
58°10 2 A; aj 09-4 
57-4 In FS 5 15: 
57°25 1 “5 ‘3 16°5 
55-949 55°95 1 56:0 1 » . 27°4 
55:1 1 7 3 35° 
52:1 1 33 “ 60- 
4 51:7 1 “i 5 63- 
50°916 50-93 1 51:0 Us Fr ay 69°6 
50°3 1 ” ” 75° 
49-133 49°13 10 49-2 4 49°10 | 0:3 ” ” 84:7 
48-621 48°61 1 48°8 1 ee as 88-9 
