308 REPORT—1896. 
Copper (Spark SPECTRUM). 
Eder and Valenta: ‘ Denkschr. kaiserl. Akad. Wissensch. zu Wien,’ 1896. 
Exner and Haschek: ‘ Sitz-ber. kaiserl. Akad. Wissench. Wein,’ civ. (1895), 
ev. (1896). 
* Observed in the Arc spectrum by Kayser and Runge. 
+ Observed only in air; the spark was usually taken between copper poles im 
hydrogen. 
| | Reduglian 
| ; to Vacuum ats 
| Mie ars ae Previous Measurements oe shale 
(Rowland) Character (Rowland) 1 in Vacuo 
A+ a 
| 6381:1 6s 6381:2 Thalén 1:73 4:2 1566771 
| 6219°5 4s 6219°7 1:69 4:4 160741 
| *5782°30 8s 578274 oy, 5782°5 Neovius | 1:58 4°7 17289°5 
| 5768°65 Inb 1:57 | ,, | 17280-4 
|  5760°49 1Inb e si 173549 
| *5732°50 inb 1°56 Ks 17439°7 
|’ *5700:39 6s 57018 , 57008 ,, 1:55 | 48 | 17537-9 
| 5696°68 3b a PA 17549 3 
| 5685:03 1b 5 A 17585°3 
| 5679:42 3s * 5 17602°6 
567585 2b $3 a 17613°7 
| 6672°92 2b a3 - 17622°8 
5668°77 2b ” ” 17635°7 
5666°62 3s a 33 17642°4 
5663°52 In 1:54 5 176521 
| 5652°16 4b ” 5 17687'5 
| *5646:13 3b s +5 17706°4 
564439 Jn ” An 17711°9 
5639-50 In ns 17727°3 
5636'84 1b a 53 177356 
562471 1b 1:53 - 177739 
5621°17 3b 5 a 17785°1 
561870 ‘| 3b ” 4 17792°9 
560883 3s a 4:9 178241 
557410 3b 1:52 os 17935:2 
5571:47 In ny i 17943°7 
5566°35 3s 5 - 17960°2 
556383 2s ” 4 17968°3 
¥*5555°15 2b 5 = 1799674 
554311 2b 1°51 ;; 18035°5 
*5535°90 3b Ps 55 18059:0 
5500:09 2s 1°50 50 181765 
549814 2s 3 5 18183°0 
549512 4s a is 18193°0 
5487°30 3s s rn 18218°9 
| 65475°49 2n 1:49 a 18258°2 
5472-00 3b = 9 18269°8 
5463°55 4b ” 4 18298'1 
5460°25 2b te 5 18309°2 
| 5456:02 2s - ‘3 18323°4 
545393 In x . 18330°4 
5450°62 2s 3 18341°5 
544090 1n ot ni 18374°3 
5438°79 4s 1:48 =< 18381°4 
4#5432°26 2b ‘ > 6 18403°5 
5429-01 1b ay » | 184146 
