114 
PROFESSOR W. N. HARTLEY AND MR. W. E. ADENEY 
The Spectrum of Tin (continued). 
Scale- 
numbers. 
Description of lines. 
Wave¬ 
lengths. 
Remarks. 
182-47 
Very strong, continuous, extended, fine 
2862-1 
184-99 
Strong, continuous, extended, fine . . 
2849-3 
185-45 
Strong, very sliort. 
2847-6 
187-01 
Very strong, continuous, extended, 
sharp . 
2838-9 
192-30 
f Strong, continuous. 
2812-5 
192-40 
\ Faint, discontinuous, fine. 
2811-5 
197-61 
Faint, discontinuous. 
2787-3 
198-28 
Fairly strong, continuous, weak in 
centre . 
2784-0 
199-34 
Strong, continuous, extended . . . 
2778-8 
202-23 
Faint, long, continuous. 
2765-0 
204-52 
f Faint, sliort. 
2754-0 
205-01 
\ Faint, sliort. 
2751-8 
205-70 
f Faint, sliort. 
2749-0 
206-24 
Faint, short. 
2746-0 
207-94 
Faint, short. 
2738-4 
209-17 
Faint, long. 
27330 
215-35 
Very strong, continuous, extended, 
sharp . 
2705-8 
224-95 
Strong, very short. 
2664-9 
225-98 
Strong, continuous, fine. 
2660-2 
226-56 
Very strong, short, nebulous 
2657-9 
229-67 
Strong, very short. 
2645-4 
230-23 
Very strong, short, nebulous 
2643-2 
233-17 
Very strong, short, nebulous 
2631-5 
236-40 
Strong, very short. 
2617-9 
237-47 
Faint, very short. 
2613-8 
238-18 
Faint, short. 
26110 
239-38 
Faint, short. 
2606-3 
241-31 
Faint, short. 
2598-5 
242-65 
Fairly strong, continuous . 
2593'6 
243-10 
Fairly strong, short. 
2591-7 
248-70 
Strong, continuous, extended . . . 
2570-5 
250-70 
Faint, very short, nebulous .... 
2563-2 
252-20 
Faint, continuous, fine. 
2557-7 
255-45 
Strong, continuous, extended . . . 
2545-6 
259-59 
Faint, discontinuous, fine. 
2530-8 
261-57 
Weak, discontinuous, fine. 
2523-4 
264-35 
Faint, very short. 
2514-0 
266-61 
Faint, very short. 
25060 
268- 55 
269- 80 
271-85 
273-40 
281-83 
Faint, very short. 
f Strong, continuous, extended . . . 
<- Strong, short, broad, nebulous . 
[_ Strong, continuous, extended . . . 
TWeak, discontinuous. 
2499-3 
2495-0 
2488-0 
2482-9 
2455-5 
^ This is a characteristic group, 
1 which is repeated, but with a 
[ lesser intensity, in the three 
K lines immediately following. 
283-37 
< Fairly strong, short, nebulous .... 
2449-4 
\ 
284-82 
Weak, continuous. 
2445-2 
l 
287-55 
Strong, very short. 
2436-4 
288-65 
Faint, short. 
24333 
289-95 
/ Very strong, continuous, extended 
2429-3 
292-37 
\ Very strong, continuous, extended 
2421-8 
296-80 
Weak, discontinuous, fine. 
2408-0 
300-82 
Faint, short. 
2395-8 
301-54 
Faint, short. 
2393-7 
305'40 
Faint, short. 
2382 3 
