•54 
THE ASTRONOMER ROYAL, WAVE-LENGTHS 
Comparison of the Wave-Lengths found by Angstrom with the Wave-Lengths found in 
the preceding Tables. 
(For Angstrom’s measures, see Poggendorff’s ‘Annalen der Physik und Chemie,’ 
CXX1II. Band, page 498. Angstrom’s measures were originally given in terms of the 
Paris inch, but are here converted into measures in terms of the millimetre.) 
Designation of line 
and Kirehhoff’s 
measure. 
Wave-length, 
by Angstrom 
in terms of 
the Paris inch, 
in. 
0-0000 
Ware-length, 
by Angstrom 
in terms of the 
millimetre. 
ODOO 
Wave-length, 
computed in 
preceding 
Tables, 
m.m. 
0000 
Designation of line 
and Kirchhoff’s 
measure. 
Wave-length, 
by Angstrom 
in terms of 
the Paris inch, 
in. 
00000 
Wave-length, 
by Angstrom 
in terms of the 
millimetre, 
m.m. 
o-ooo 
Wave-length, 
computed in 
preceding 
Tables, 
m.m. 
0000 
A 401-9-406-8 
28120 
76121 
76561 
1463-3 
19696 
53317 
53343 
B 592-7—593-1 
25397 
68750 
68841 
1466-8 
19681 
53276 
53309 
C 694-1 
24263 
65680 
65710 
1473-9 
19653 
53201 
53243 
849-7 
22873 
61917 
61915 
£ 
J 1522-7 
19484 
52743 
52792 
860-2 
22796 
61709 
61693 
{ 1523-7 
19480 
52732 
52782 
863-9 
22768 
61633 
61617 
1527-7 
19468 
52700 
52747 
874-3 
22694 
61433 
61405 
1564-2 
19364 
52418 
52423 
877-0 j 
22677 
61387 
61348 
1569-6 
19346 
52370 
52375 
884-9 
22621 
61235 
61191 
1622-3 
19196 
51964 
51925 
894-9 
22551 
61046 
60990 
b 
1633-5 
19165 
51880 
51832 
j-. f 1 002-8 
21797 
59004 
59053 
1648-8 
19124 
51769 
51705 
u \ 1006-8 
21775 
58945 
58988 
z. 
f 1 653-7 
19111 
51733 
51664 
1200-6 
20761 
56200 
56210 
b 2 
[ 1655-6 
19105 
51717 
51647 
1207-3 
20713 
56070 
56129 
c 
1960-8 
18327 
49611 
49433 
1217-8 I 
20654 
55910 
559 97 
2001-6 
18191 
49243 
49169 
1231-3 
20601 
55767 
55833 
2005-2 
18184 
49224 
49148 
1337*0 
20169 
54597 
54626 
2041-3 
18083 
48951 
48923 
1343-5 
20136 
54508 
54556 
2066-2 
18011 
48756 
48769 
1362-9 
20073 1 
54338 
54351 
p 
f 2079-5 
1 1 7Q7q 
48653 
f 48690 
1367-0 
20053 1 
54283 
54309 
[ 2080-5 
t 48686 
1389-4 
19984 
54097 i 
54076 
f 
2670-0 
16322 
44184 
45074 
1390-9 
19979 
54083 
54063 
2686-4 
16285 
44083 
44933 
1421-5 
19858 
53756 
53749 
2720-8 
16204 
43864 
44629 
1423-0 
19853 
53742 
53736 
G 
2854-7 
15923 
43104 
43160 
1425-4 
19842 
53712 
53713 
1428-2 
19835 
53693 ; 
53685 
1450-8 | 
19742 
53442 
53463 
