100 
PROFESSOR W. N. HARTLEY AND MR. W. E. ADENEY 
The Spectrum of Cadmium (continued). 
Scale- 
numbers. 
Description of lines. 
Wave¬ 
lengths. 
Remarks. 
232-09 
fVery faint and short. 
26353 
Strongest in its central portion. 
232-75 
Very faint and short. 
2632-7 
232-84 
> 
Very faint, continuous, fine .... 
2632-3 
233-45 
Very faint and short. 
2630-2 
233-61 
Very faint, continuous, fine .... 
2629 1 
234-69 
Very faint and short. 
2624-8 
236-35 
Weak, very short. 
2618-0 
237-39 
Faint, fine, continuous, sharp 
2614-0 
238-13 
Very faint and short. 
26110 
240-79 
Very faint and short. 
2600-8 
241-30 
Very faint and short. 
2598-8 
242-19 
Very faint and short. 
2595-3 
243-08 
Very faint and short. 
25920 
24416 
Very faint and short. 
2587-8 
244-86 
Very faint and short. 
2585-0 
248-24 
Vert strong, continuous, broad, with 
a nimbus and greatly extended . 
2572-2 
250-70 
Very faint and short. 
2563-2 
252-30 
Very faint and short. 
2557-4 
252-96 
Very faint and short. 
25550 
253-72 
Weak, very short. 
2551-6 
255-08 
Very faint and short. 
2547-2 
255-73 
Faint, fine, continuous. 
2544-5 
The central portion of the line 
25850 
Weak, short. 
2499-6 
only visible. 
272-02 
Weak, short. 
2488-2 
277-50 
Fairly strong , fine, discontinuous 
2469-3 
293-32 
Weak, short, fine. 
2418-5 
307-11 
J 
f Faint, very short, fine. 
2377-3 
307-75 
1 
[ Faint, very short, fine. 
2376-6 
323-80 
f Strong, continuous, weak in centre 
2329-5 
326-80 
Very strong, continuous, with a nim- 
bus, weak in centre. 
2321-6 
329-85 
<1 
Very strong, continuous, broad, with 
a strong nimbus, extended . 
2313-6 
332-22 
Strong, continuous, fine, weak in 
. centre . 
2307-0 
339-25 
Very strong, continuous, broad. . . 
2288-9 
347-20 
Weak, discontinuous. 
2268-6 
348-15 
Very strong, continuous, broad, with a 
nimbus and slightly extended 
2265-9 
354-60 
Weak, short. 
2249-2 
358-35 
Fairly strong , discontinuous, fine 
2241-4 
364-73 
Weak, short. 
2227-0 
373-55 
Weak, continuous. 
2206-2 
377-48 
Strong, broad, continuous, nebulous, 
weak in centre. 
2196-4 
400-20 
Strong, broad, continuous, nebulous . 
2146-8 
415-60 
Faint, very short, nebulous .... 
2111-5 
Five lines of zinc appear in the photographs, which proceed from one electrode 
only, their wave-lengths are 33447, 3302'1, 3282’0, 2557'3, 2501‘5. 
