ON WAVE-LENGTH TABLES OF TEE SPECTRA OF THE ELEMENTS. 
YTTRIUM— continued. 
129 
Reduction to 
Wave-length | Intensity | eek | Lohse Maeune | Oscillation 
(Kayser) an Exner and | Arc Spark | Frequency 
Are Spectrum Character Hiaschekee || Pe aad iL in Vacuo 
| | a 
4479-184 2 1:23 | 6-2 22319°3 
77°628 4 4577°59 Ea War 27:0 
77°140 4 77:10 By 29°3 
75°900 4 | 75°9 Py “c 35°7 
74-074 3 | 99 99 44:8 
72:953 2 Ferrie lane 50-4 
65-463 2 65°50 1:22 ” 87:9 
46-805 4 Sed Ps 22481°8 
45°491 3 | ” ” 88°7 
43-834 4 43°83 ” ” 96°9 
37°519 3 ” 33 | 22528°9 
36°321 2 36°37 ”» ” | 35:0 
33°145 1 Fae yore el 51-1 
27-191 1 1:21 | 63 81:3 
22-772 6 | 22°80 as » | 22604:0 
18°360 1 FP ro 26°5 
17°635 2 samualh oe 30°3 
15552 2 2 | rae i 40°9 
02°574 1 | (tal |) S2eOteT 
4398-201 5 | 4398-21 heise ~ 30°2 
97-904 2 | Weis 2 31:8 
94-840 3 | ”» ” 47°7 
94:184 2 We ee “5 51:0 
93°788 1 | 1:20 _ 53-1 
87-908 3 87°84 Wes FP 83°6 
85-649 2 ” ” 95°3 
79°499 4 ér -p 22827°4 
75°794 3 99 a 46:7 
75°113 8 7511 s As 50°2 
71621 1 PP “0 68°5 
71:144 2 ga IE tay 71-0 
66-204 3 66°30 » | G4 96°8 
58-895 5 58°91 » | 22935:2 
57°876 + Ht ate amed i are 40°6 
53°833 1 (RP ESae =<: 61:9 
52-499 2 ie ee “ 68-9 
48°957 a 48°91 ss mi 87°6 
46°323 2 ” ” 23001°6 
44:812 3 “f, “D 09°6 
37°476 2 ares a 48°5 
30°945 3 30°85 I ae = 83°3 
24°765 1 ” » 23116-2 
22°474 2 22°4. Be fr 28°5 
18-182 1 1:18 oo 51:5 
18-052 1 eee = 52:2 
16-472 2 » aa 60-7 
15°662 3 fs) At 65:0 
14-080 2 ” ” 73°5 
09-784 6 09°81 or ra 96-6 
07:234 2 “c 6°5 23210°2 
05°499 1 ” ” 19°6 
02°431 5 02°45 a x9 36:2 
00-526 3 on * 46°5 
4291:217 3 117 =A 96°9 
* Rowland: 4358-879. 
1904. K 
