Spectrum at 
a 
the Place. 
THE SOLAR SPECTRUM AT THE DATE 1877-1878. 
Object Observed, generally a black, fixed 
Fraunhofer Line. 
Fine line and sharp, 
Strong line and sharp, 
Very strong and sharp line, 
Group of lines : 1st component, 
2nd and chief, . 
3rd component, 
4th do. 
5th = do. 
Single, strong, and sharp line, . 
Group of 8 lines: 1st component, 
2nd do. 
3rd and chief, 
4th component, 
5th do. 
6th do. 
7th do. 
8th do. 
Triple group : 1st component, 
2nd do. 
srd_—s do. 
Strong lines in haze band— 
1st : 
2nd : 
3rd and chief, 
Fine line, 
Do. c : 
Decreasing haze band— 
begins sharp, 
middle, 
vanishes, 
Very powerful line, and other lines in 
a haze band— 
Ist line, . 
Qnd and chief 
3rd line, : 
4th do. 
11h. A.M. 
Very powerful double— 
lst component, 
2nd do. 
Powerful line, 
Fine line, 
Triple group : Ist component, 
2nd = do. 
3rd_—s do. 
Very fine line, . 
Fine line, 
Strong line, 
Do. 
Fine line, 
Fine line, followed by haze, : 
Very powerful line, reached 
by said haze— 
Ist side, 
Qnd do. 
Hazy band—begins, . 
maximum, 
ends, 
Intensity 
of black. or; 
thickness 
of line. 
WOM OH jNooH 
NoOrN WA DH 
CHMND He jNowr MH roe 
on Or 
WME) w 
oO 
NOrNNHO Wr We DN oO o 
OV 
Appear- 
ance by 
graphical 
coupara- 
tive 
symbol. 
4 
327 
PLACE- Differences. 
ata ea Comet yg 5 
caaimg. | Angstrom’s Angstrom, NUMBER- || 23 8 
R Grating Nor-| Thalen, &c. PLACE, per || 32 | 
i mal Solar British Inch. |} $ © 2 
Spectrum. Fy a A 
11°415 59 170 14 
11°456 oy 59 184 ie 
11503 Titanium. || 59 200 es 
11-536 (| 59212 || , 
11°553 Chromium | |} 59 219 3 
11°564 and 59 222 4 
11°577 Calcium. 59 226 4 
11583 || 59 230 2 
11°620 Titanium. 59 242 = 
12 
11°655 (|| 59 254 || , 
11°673 59 260 8 
11°695 Titanium, 59 268 6 
11-718 Iron, and 9 274 3 
11°722 Calcium 50 277 3 
11°732 A 59 280 7 
L754 59 287 7 
Mal 7/75) 59 294 
15 
11°818 59 209 6 
11°835 Tron. 59 315 5 
11°850 59 320 
14 
11°890 59 334 10 
11-920 Manganese. 59 344 8 
11°945 59 352 ia 
11°972 59 362 8 
11°994 59 370 
12 
12°025 59 382 8 
12°046 Copper. 59 390 3 
12°060 59 393 
17 
12°107 Sci | ae ee tO 
12:138 son | | SOlAgD Nl 4 
12°170 Calcium 59 431 7 
12°188 . 59 438 
25 
12260 59463] _ 
59 467 Tron. 7 
12:278 59 470 es 
12°384 59 506 12 
12°424 f 59 518 9 
12°445 Tron. 59 527 6 
12-463 (|| 59 533 
15 
12°505 59 548 7 
12°524 59 555 8 
12°550 Tron. 59 563 7 
12°570 Tron. 59 570 16 
12°613 59 586 17 
12°668 59 603 
7 
12°715 |) Teeny 59 620 || 15 
12-745 | | 99 623 59 630 i 
12°780 59 642 10 
12°810 Manganese. 59 652 5 
12°824 59 657 92 
