of the Spectral lines of the Elements. 
Taser VI, 
Ang. ). V.D.W... Ditsch.Al. Ditsch.Ag. A-and A.andD.1. A.andD.2. V.D.W. 
V.D.W. and D.1. 
687-49 687-48 68781 68833 +001 —032 —0:84 0°33 
656-76 65656 65677 65711 +020 —001 —035 —0-21 
Sage 651°94 652:09 652:58 eek res cn ews 
Cer 49°77 650°05 650°5 Ae is ae ‘28 
619-17 619-45 619-72 62009 —0-28 —055 -—092 —027 
61633 616-49 61673 617-19 16 —0-40 —086 —0-24 
614-31 613°96 614-24 61470 +4035 +007 —039 —0-28 
612'34 61252 612-76 613:°22 —0-18 —042 —0°88 —0-24 
89 0-45 61052 61082 61128 —007 -—037 —0-83 —032 
a 10023 59004 58986 590°07 59053 +4018 —003 —049 —021 
y 10068 58943 589-26 589'43 58989 +017 000 —046 —017 
yy oe 562°70 562°97 563, i 4 ae 
1207 56199 561:80 561:98 56240 +019 +001 —041 —018 
PAO ee cas | 553'19 553°27 653-6 A ate OS 0°08 
ae E3248 os. 47°86 64813 54854 ag coo SO? 
) 1343 545°97 54583 54605 54646 +014 —008 —049 —0-22 
Lo, 3 eet 37°38 537-52 537-9 pe a .. —014 
1463 53316 533°05 633°29 533°69 +011 —013 —053 —024 
l@ 15235 527-32 527-24 527-38 52783 +008 —0-06 —051 —O014 
1569°8 523-69 523°50 523-74 52413 +019 —015 —044 —024 
eesti le 22°96 623°09 62349 “iil. “blsle Shes —013 
<0 163. 879 61863 51873 61912 +4016 +003 —033 —0-10 
S| :1648°8 517-66 517-51 517-70 51809 +4011 —004 —043 —019 
278 16556 51715 517-07 51715 51754 +008 0:00 —039 —0-08 
Tt Gilg: Seen cee 10:18 5103 16 0e So oo ES eee —012 
AS seg See $0997. b0GRE b064e Gait. a —014 
a SOLS) GO4BRPBUCGR Voix. skds eat —0'18 
a ee Sel s06t6 Bebe) cus Lidice —014 
20414 489-50 48938 489-54 48990 +012 —004 —040 —016 
206 755 48746 487 87-91 +009 000 —036 —009 
34 2080-1 48652 48639 48649 48687 +012 +003 —035 —010 
oan la 67-00 46707 467-4 Pre ee —007 
see iar Sere 53°75 453:73 454-0 ites oaret Fae +002 
2721-6 438-63 43858 438-75 43908 +005 —012 —045 —017 
Pa see. 4349 4-28 43434 42466 000 —006 —0:38 —006 
89 2822-8 439-78 43974 43282 43314 +004 —004 —036 —008 
; 28547 431 31:12 43135 43170 —009 —032 —067 —023 
yf: 397-16 397-13 397-10 39742 +003 +006 —026 Se 
ere 393-59 393-76 393-74 39405 —O- 015 —046 +00 
lines on the ruled glass surface employed was determined. The 
(Other columns exhibit the differences between the first and 
Second, first and third, first and fourth, and second and third 
easurements. 
II, I have given the measurements of the wave 
*astrements of wave lengths, and assigning the probable er- 
Mm the case of each group as well as the values of the con- 
Hf 3 
