jolour of the 
Continuous 
spectrum at 
the Place. 
THE SOLAR SPECTRUM AT THE DATE 1877-1878. 
Object Observed, generally a black, fixed 
Fraunhofer Line. 
Fine line, 
0. . 
Very fine line, . 
Do. do. 
Powerful line and sharp, 
Fine line (not in Angstrom), 
Fine line, 
Strong and sharp line (not 
in Angstrom), fs 
Fine line, 
Double line : 1st component, 
2nd do. 
A grand triplet— 
Ist line, . 
Ond and chief, 
8rd and last line, . 
Fine line (stronger in al alae 
Do. : : 
Do. ; 
Stronger line, 
Fine line, 
Very strong line and sharp, 
Strong line, 
Do. 
Fine line, 
Strong line and shar D 
Fine line, , 5 5 a : 
Do. (strong line in Angstrom), 
Do. : ; ‘ ; 
Do. 
Very powerful line— 
Ist side, 
Qnd do. 
Fine line, 
Do. 
Strong line, 
Clear line, 
Very powerful line (double in 
Angstrom)— 
Ist side, 
Qnd do. 
Very faint double line— 
1st component, 
2nd = do. 
Strong double line: Ist component, . 
2nd do. 
Strong line, 
Fine line, 
Very powerful line and 
haz 
Fine ae 
11h. 35m. A mu. 
Strong line, 
VOL. XXIX. PART I. 
Intensity 
of black, or 
thickness 
of line. 
OL Or 
BP pw rp oorrF 
Nr 
Appear- 
ance by 
graphical 
compara- 
HBroHeee wO 
meee coe prn Ol 
— 
et (oe) 
bo 0 
10 
a 
329 
PLACE- Differences. 
Micrometer Dp Fats z Chemical-origin- Coneaeet 3. a 
Hasse Angstrom’s pees NUMBER- 2 2 S 
Rev. |G g ne | Thalen, &. || pritisn inn. | 2 | = 
Spectrum. AR A 
14:208 60 128 5 
14°225 60 133 9 
14°252 60 142 3 
14°262 60 145 
16 
14313 tron. || 60 161 5 
14°340 0 169 
17 
14°398 60 186 
113) 
14-440 60 199 ve 
14-471 | 60 209 
| 16 
14°525 2 60 225 || 5 
14°534 moe 60 228 
14 
14°583 60 242) 9 
14'610 | 60 251 | Calcium and || 60 251] 5 
14°621 Tron. 60 256 
22 
14°683 Tron. 60 278 14 
14°724 60 292 ll 
14°760 60 303 14 
14'793 60 317 3 
14°809 60 320 
10 
14°835 Tron | 60 330 A 
14°852 Tron 60 336 14 
14°898 Tron 60 350 23 
14°960 60 373 8 
14°985 Tron 60 381 
19 
15'038 60 400 ” 
15056 Tron. 60 407 13 
15:098 60 420 3 
157107 60 423 
25 
15 174) | 60 448]| , 
15197 §|60 452) Tn. 7 | GO 454 ‘ 
15-240 60 469 | - 
15:275 Tron 60 480 
11 
15°316 2 60 491 5 
15°332 60 496 
6 
19358 | | 60 502 5 
15363 )|60 502) Irn. || G9 507 
24 
15°435 I 60 531 9 
15°443 pe 60 533 S 
11 
15°475 60 544 11 
15°505 60 555 
18 
15562 © Calcium. 60 573 17 
15°614 60 590 
: 12° 
15°655 02 Tron. 60 602 
15680 eure 60 612 10 
34 
15°773 Calcium. 60 646 16 
i 
