THE SOLAR SPECTRUM AT THE DATE 1877-1878. 
|Colour of the 
Continuous Object Observed, generally a black, fixed, 
| Spectrum at Fraunhofer Line. 
| 
gh Re 
the Place. 
Fine line, . 4 : 
Do. : F ; oe Aas 
Do. 
Strong line, 
Fine line, . 
Do. 
Fine double line: 1st component, 
2nd = do. 
Very fine line, . 
Strong double line: 1st component, . 
(This pair faint in Angstrom), 2nd do, 
Fine double line : 1st component, 
2nd do, 
Sharp and single line, 
11h. 30m, a.m. 
Single line, 
Very fine line, . = 5 : 
Clear double line : 1st component, 
2nd _—s do. 
Strong hazy line, 
Strong line, 
Fine line, . "5 c E 
Strong double or treble-— 
GREEN. Ist component, . 
(Single in Angstrom), 2nd do. 
Fine line, . : 
Very fine line, . é 
Fine line and clear, . , 
Thicker line (not in Angstrom), 
Faint band, 
Very faint band, 
Faint hazy line, 
Stronger line, 
Faint line, 
Stronger line, 
Faint line, 
Strong line, 
Reset Telescope. 
Last line repeated, 
Sharp line, 
Do. 
Do. 
Fine line, 
Triple line ; 1st component, 
2nd —s do. 
8rd_—s do. : : 
Band of most exquisitely graduated 
lines, clean and sharp, and ending 
with a strong line— 
1st component, 
2nd do. 
3rd do. 
4th do. 
5th and chief, 
VOL. XXIX. PART I. 
Intensity 
of black, or 
thickness 
of line. 
et et 
bo bp 
bo oo NoNwrrE bw wre 
HH Ooo | alll aol oe oo CO 
SS oS 
wore 
Haoicg) © 
Appear- 
ance by 
graphical | Micrometer 
compara- 
tive 
symbol. 
309 
Reading. 
Rey. 
11°160 
11°200 
11°255 
11°288 
11°347 
11°404 
11°465 
11°483 
11°533 
11°594 
11°624 
11°744 
11°754 
11-795 
11°900 
11:997 
12°032 
12°068 
12°104 
12°172 
12°303 
12°372 
12°426 
12°440 
12°480 
12°505 
12°540 
12°622 
12°710 
12°730 
12°797 
12°827 
12°868 
12°920 
13°110 
13°192 
5°468 
5565 
5632 
5°724 
5°803 
5867 
5902 
5914 
5-926 
5-940 
59738 
6-000 
6022 
PLACE- 
DATA, 
from 
Angstrom's 
Grating Nor- 
mal Solar 
Spectrum. 
48 545 
48 597 
48 773 
48 773 
48 794 
48 808 
48 828 
Chemical-origin- 
data, from 
Angstrom, 
Thalen, &c. 
Manganese. 
Iron. 
Iron. 
Tron. 
Tron. 
2 
Tron, 
Cobalt. 
Manganese. 
Tron. 
Tron. 
Tron. 
Titanium. 
Titanium. 
Copper. 
Tron. 
Tron. 
Tron. 
Titanium. 
Chromium 
and Iron. 
Chromium 
and Iron. 
Chromium. 
Chromium 
and Iron. 
Tron. 
Tron. 
Manganese. 
Manganese. 
Manganese. 
Tron. 
Concluded 
WAVE- 
NUMBER- 
PLACE, per 
British Inch. 
48 304 
48 313 
48 327 
48 334 
48 348 
48 363 
48 377 
48 382 
48 394 
48 408 
48 415 
48 446 
48 456 
48 481 
48 443 
48 504 
48 513 
48 520 
48 529 
48 546 
48 571 
48 586 
48 595 
48 598 
48 608 
48 613 
48 622 
48 640 
48 661 
48 667 
48 683 
48 687 
48 697 
48 709 
48 754 
48 773 
48 773 
48 794 
48 808 
48 828 
AS 844 
48 859 
48 868 
48 870 
48 873 
48 875 
48 883 
48 888 
48 893 
Differences. 
Breadths & 
Doubles. 
Distances 
Or O1 00 bo 
17 
4k 
