150 REPORTS ON THE STATE OF SCIENCE. 
IRIDIUM—continued. 
i Spectrum ‘8 Spark Spectrum Boineunnin 
Wave-length _ | Wave-length Bal Vacuue Oscillation 
pe : Intensity) uae Intensity) _________| Frequency 
feaeeer tte Exner and hagepae er) Hxnerand | Gunranue Ne ass apetiae 
Haschek | Haschek | A 
3292°6 1 0°92 | 86 30363° 
92-2 1 Fy B 66° 
91°6 i 33 a5 72: 
3291°187 0 91-4 1 " 9 75°6 
91-010 0 3 yi, Witie4 
90-640 0 90-2 1 ” ry 80:6 
89°2 1 Ac 8°7 94: 
88:7 1 > + 99- 
88°4 il 55 3 30401- 
87°726 3287-72 5 87-7 1 ” ” 07°5 
87-198 87°20 4 87:2 it » ” 12:3 
85:721 0 85:7 In = a 26:0 
84-695 84:69 2 84:6 2 F 5 35°5 
84-456 1 of 25 377 
84:0 1 FY a 42- 
82°458 82°46 2 82°5 il os 33 56°3 
82:3 1 3 . 58: 
82:024 0 33 a 61:3 
81°85 1 81°8 1 FF PP 67°9 
81:2 In i a 68: 
80-705 iL 80°6 1 ” ” 72:5 
80-011 0 3 - 79:0 
796 1 5 o 83° 
791 1 3 > 87: 
78°41 1 78:2 1 5 + 93°9 
77:9 ] ; - 99- 
77-422 77-41 5 17-4 1 * 5 30603°1 
76:291 76°28 1 76:3 1 PP Py 13°7 
73'135 75°74 2 3 = 18°8 
75452 75°45 1 75°6 1 FA a 21°4 
75°167 75°15 1 75:0 1 3 os 24:0 
74-686 74:68 2 3 5 28°6 
74:2 1 . oe Bhd 
72°772 0 72°7 1 is 5 46°4 
W225 1 > = 49: 
71:936 71:94 3 71°8 1 » ” 54-2 
aeode 71:38 4 71-4 1 55 Ps 59°5 
69-835 i 70 i A 73°9 
69°5 In oe a ids 
68°663 0 68:7 1 es x 84:9 
68°5 1 an a 86- 
67:236 67°22 1 67:2 In , or 98°3 
66°580 66°59 8 66°5 2 % ” 30604°3 
65°399 0 is 5 15:4 
64:6 1 = 3 23° 
64:3 1 5 5 26° 
63°436 63°44 In ” ” 33°8 
63-062 63-09 1 63-1 1 rs a 37-2 
62°852 62°85 1 3 ” 39'3 
62°6 1 a sa 42: 
62°147 62°15 I5) 62:1 2 as =r 45°9 
61°4 1 os 3 54: 
61:0 In suleaeiess 57° 
59:7 In O:91lul %; 69- 
