‘olour of the 
Continuous 
spectrum at 
the Place. 
Object Observed, generally a black, fixed 
Frauenhofer Line. 
Strong line, 
Very fine line, . 
Fine line, 
Very fine line, . 
Strong line, 
Fine line, 
Strong line, 
Fine line, 
Very powerful triple— 
lst component, 
2nd do. 
Sra do. 
Strong line, 
Very fine line, 
A notable group— 
1st component, 
2nd and chief do. 
3rd do. 
4th do. 
5th do. 
A triple group— 
Ist and smallest component, 
2nd and large do. 
Srd and large do. 
2nd do. 
3rd do. 
4th do. 
Quadruple group— 
1st component, 
2nd and chief = 
3rd, a thin line, 
4th, do. 
Strong line (barely seen in cae 
Strong line, 
Unequal tr iple er roup— 
1st component, 
2nd do. 
3rd and chief do. 
Violet Hydrogen, sometimes called, 
“near G”— 
Haze begins, . 
1st side of lines, 
2nd do. 
Fine line, 
Do. 
Stronger line, 
Very strong line, 
Fine line, 
Stronger line, 
Fine line, 
Do. 
Strong line, 
A band of small lines: 1st component, 
Following line, 
THE SOLAR SPECTRUM AT THE DATE 1877-1878. 325 
Appear- PLACE- Differences. 
< a b DATA, Chemical-origin-|} Concluded 
ey speaiitel Micrometer from ati com WAVE- aor ee 
entcieitant compara- Reading. Angstrom’s Angstrom, NUMBER- 25 y 
“of nie tive Grating Nor-| Thalen, &c. PLACE, per || 5 g & 
* | symbol. Rev. mal Solar British Inch. || $2] 
Spectrum. aA ray 
3 | 8333 Tron. 58 056 
0°8 8°347 58 061 Zi 
1:3 | 8°360 58 065 ; 
0°8 8371 58 069 
if 
2 | 8390 58 076 7 
1 | 8412 58 083 ‘a 
2 | 8-438 58 094 ‘5 
1 | 8-452 58 100 
19 
a iP 8-505 2 (| 58 119 |) 9 
4 || i | 8562 on, {| 58 139] 
5 J 8633 Iron. 58 163 
14 
2 { 8670 58 177 
1 I 8688 58 183 6 
26 
1 8-760 (|| 58 209 
y ( | 12 
a | | 8-792 ji) ss 221 |"; 
2°5 | [rilll}1 8896 58 226 || 3 
Be i | S8iB || 58 229 |) 3 
1 Lg -895 (|| 58 239 
22 
1 8-888 58 254 ||, 
4 | 1) || }) 8-920 Chromium. }] 58 266) 
a | 8:955 ron, {| 5827877] 
1 9034 58 305 5 
1 |} 97050 58 311 3 
2 eu 9073 58 319 - 
2 | 9095 ( 58 328 
24 
2 | | 9164 (|| 58 352 F 
5 | 1+] |; 9195 /58 360] chromim || 58 362] 15 
1 j | tel l 9-232 and Iron. 58 377 3 
i! i? 9-240 tl 58 880 
36 
3 | 9°344 58 416 | a 
2 | 9-405 58 440 | 
| 28 
2 | 9°477 Chromium. 58 468 6 
1 atl 9-495 58 474 || 17 
3 | 9°527 Iron. 58 485 
27 
O5- |= 9°604 58 512 i 
{10 8-645 |} 58524) Hydrogen. } | BE 238] 1 
8 
ae 9-665 (| 58 538 x3 
1 | 9°720 Chromium | 58 561 4 
1 ; 9°730 and + || 58 565 6 
2 | 9°745 Titanium. 58 571 7 
4 | 9760 58 578 54 
1 | 9821 58 601 a 
2 | 9°867 58 619 
1 | 9-914 58 638 19 
1 l 9°950 58 652 14 
2 | 9°972 58 660 8 
38 
15 | 10:062 58 698 15 
40 
» XXIX. PART I. 
