ON THE MEASUREMENTS OF WAVE-LENGTHS. 
103 
The Spectrum of Indium (continued). 
Scale- 
numbers. 
Description of lines. 
Wave¬ 
lengths. 
Remarks. 
255-78 
260-74 
26245 
270-93 
272-65 
272-90 
274-67 
277- 34 
278- 00 
279- 68 
280- 30 
280-42 
284- 25 
285- 40 
288- 63 
289- 43 
289- 89 
290- 18 
291- 99 
292- 11 
294-16 
298-25 
300-21 
302- 86 
303- 50 
304- 54 
305- 87 
309-44 
314-24 
314-65 
314- 75 
315- 30 
316- 12 
322-96 
332-20 
338- 96 
339- 65 
(343-44) 
348- 82 
349- 06 
354-93 
356-74 
/361-82\ 
V362-32 ) 
(366-80) 
(370-04) 
372-92 
374-44 
377- 82 
378- 94 
383-42 
394-81 
403-20 
431-61 
Weak, short. 
Strong, very short. 
Weak, fine, continuous. 
Faint, short. 
f Faint, short, very fine. 
[ Faint, short, very fine. 
A very faint nebulous dot. 
f Fairly strong , fine, discontinuous . 
< Weak, very fine, sharp, only visible in 
l_ central portion. 
Faint, very short dot. 
J Fairly strong, continuous. 
Faint, very short dot. 
Faint, very short dot. 
Faint, very short dot. 
Weak, very short dot. 
Weak, very short dot. 
J Very faint and fine, continuous . 
(Weak, discontinuous, fine. 
f Weak, fine, sharp, discontinuous 
[Weak, fine, sharp, discontinuous 
Weak, very short. 
Weak, very short. 
Weak, very short. 
Faint, very fine, continuous .... 
Faint, short. 
Weak, very short. 
W eak, very short. 
Weak, short, very fine, one half 
stronger than the other .... 
Faint, very short. 
f Very faint and fine, continuous . 
I Faint, very short. 
Faint, very short. 
Strong, discontinuous. 
Faint, very fine, continuous .... 
Very strong, sharp, continuous, ex¬ 
tended . . . 
Faint, short. 
Faint, short. 
Weak, fine, sharp, half line .... 
Weak, short, fine, sharp. 
Weak, very short, nebulous .... 
f Weak, short, fine, sharp. 
\ Weak, short, fine, sharp. 
j Faint, short, fine, sharp, half line . . 
\ Faint, short, fine, sharp, half line . 
Weak, short, fine, sharp, one half 
stronger than the other .... 
Weak, short, fine, sharp, one half 
stronger than the other . . . 
Faint, discontinuous, fine. 
Faint, short, nebulous. 
f Weak, fine, short. 
(Weak, fine, short. 
Weak, short, fine, sharp. 
Faint, very short, nebulous .... 
Faint, short, fine. 
Faint, discontinuous, broad, nebulous . 
2545-8 
2527-1 
2520-9 
2492-7 
2485-5 
2485-1 
2478-3 
2470-2 
2468-4 
2462-5 
2460-8 
2460-3 
2447-4 
2443-7 
2433-6 
2431-0 
2429-0 
2428-6 
2423-2 
2422-8 
2416-3 
2403-5 
2397-6 
2389-8 
2388-0 
2385-9 
23810 
2370-7 
2357-0 
2355-8 
2355-4 
2353-8 
2351-3 
2332-2 
2306-9 
2289-3 
2287-8 
(2278-0) 
2264-4 
2263-8 
2249-2 
2245-7 
J 2232-2 \ 
[2231-0 J 
f2220-2] 
1 2212-4 J 
2205-5 
2202 0 
2194-0 
2191-2 
2181-0 
2155-8 
2137-8 
2078-1 
Strongest in the central portion. 
Appears to be nearly coincident with 
previous line. 
The central portion only of this 
line is visible. 
The central portion only of this 
line is visible. 
The central portion only of this 
line is visible. 
This is probably an impurity. 
These are probably due to im¬ 
purities. 
These are probably due to an 
impurity. 
