176 REPORTS ON THE STATE OF SCIENCE, 
IrIDItUM—continued. 
Are Spectrum | Spark Spectrum | Roden a 
“Wav e-length | : | Wave- leggte | | Weenie _ Oscillation 
sats _ Intensity, _ | intensity, === ss Frequency 
Kayser | xner and Character = and cuted Saat A+ = ae aii 
ayees Hasclhiek | Haschek 7 | r 
| 2476-0 | 1 | 0°78:|-119 |) 40876: 
2475-209 | 2475-19 3 Or Sieee Ssgoial Peas 89:0 
74170 | ae! 74:3 1 » | os»  |y40405°7 
73°3 1 Y Cee i, op 20° 
72-709 rr TEGO oF - 29-6 
71:6 1 > Pre Fl 48: 
70°607 0 70:7 1 ees te 64:0 
707143 0 O3720)| aes 71-6 
69-848 0 ” ”? 76-4 
69-594 0 69:5 2 ” » 80-6 
69-0 1 3 FP 90- 
68°705 1 . ” 95-2 
68:263 | 0 68-4 1 a ” 405024 
67°45 1Pt? 67:5 1 a > 158 
67382 67°37 2 67°3 1 | ” ” 17:0 
66:7 1 ” ” 28° 
66-1 1 tf 3 38° 
| 65:5 1 ” ” 48- 
| 65°16 1 65-0 1 bP Se Aes ae 53-4 
64:96 1 | ee sant 56-7 
64-462 so |. aa, a Napennee 
63-118 63:10 1 63-2 1 55) | ase 87:2 
62:8 1 “ S 92° 
62°454 62°47 1 62°3 1 = a 97°9 
618 1 “6 23 40609 
58°0 1 a en 71 
57°312 | 57°31 1 |: «Aes or 82-9 
57°123 67°12 1 56:5 2 | 9 ” 86°6 
56°882 | Mecte il <a 90-0 
55949 55°95 1 | sn n 40705-4 
55-691 55:69 2 | Dory | oye “6 Ao 09-7 
54945 54:9 2 Ee 22:1 
54°67 In bey +5 26-7 
54:5 1 ey ees a 29° 
54:212 54:20 1 54:1 1 er » 34-4 
53°7 1 =) a 43° 
52°893 52°89 2 52:7 1 =n 5 56°2 
52°5 1 ae co 63° 
| 52:2 1 ee a 68: 
51-7 fo Ue is 76: 
50°8 1 (bes ep 91: 
50°4 1 x “ 98: 
49-916 0 | = 40805°8 
49°5 1 i eas “n 13: 
49-112 | 49-10 In 48°8 1 BS ‘: 19-1 
48°6 1 35 a 28: 
48°316 48°30 1 ” ” 32:4 
47°850 47°84 1 a “6 40°3 
47°53 1 te + 45:5 
47°3 1 as a 49° 
46:926 0 eS 1 55°6 
45°5 1 % oy 79° 
45°39 1 3 = 81:3 
45-184 1 45:2 1 = + 84-7 
