322 PROFESSOR PIAZZI SMYTH ON 
toby vDaTA. * \Ghemfeaiconigind|\ Ganented 
5 ance 4 : ical-origin- 
Sloueane Object Observed, generally a black, fixed yaya aca aecomete from a Ata toe WAVE. 
Spectrum at Fraunhofer Line. Prichncaa compara- 8 Angstrom’s Angstrom, NUMBER- 
the Place. of line. svratel, Rev. ga AD Thalen, &e. Perea 
Spectrum. 
Strong line (very faint double in 
Angstrom), : : oie: | 8°150 © 2 56 343 
Fine line, ; : : 5 il a 8°342 56 389 
Do. c : . : 3 1 | 8385 Manganese. 56 399 
Do. 15 | 8°487 56 422 
Strong line, hazy on either side, 3 Fl 8°548 56 436 Titanium. 56 436 
A narrow band, . : ; 2 = 8665 Manganese. || 56 466 
Fine line, : F F : ; 1 | 8724 56 479 
Strong line, : : - 2 | 8°780 Titanium. 56 492 
Fine line, 1 | 8°818 Chromium. 56 ‘501 
Do. 1 i 8°854 56 509 
Very strong line, ‘‘ little d,” with two 
following lines and haze (these latter 
particulars not in Angstrom)— | ) 
| lst component, 5 8904 | 56 522 Tron. 56 521 
2nd do. els LC hikea}) 8-926 56 526 
h 3rd do. é 1 | 8-948 56 529 
Band of fine lines, perhaps double 
ones, backed by haze— 
1st component, . 0°5 9-030 (| 56 547 
| 2nd do. iu 9-068 | 56 555 
3rd do. : 2 9103 - |Manganese. 56 563 
4th do. ; 3 9-150 Manganese 56 573 
| (The whole system and Iron. | 
very imperfect > 5th do. 2 9-195 Ul 56 582 
in Angstr. ) 
Fine line, : 15 | 9-240 56 591 
BLUR. Strong hazy line (not i in Angstrom), . : 2 HE 9-398 56 602 
Strong hazy line, : 2 Ht Ie 9°487 Iron. 56 642 
Clear line, preceding, : 2 | 9°572 ) 56 659 
Very strong and Elnck line, | | 56 663 Tron. 
following, . 4 9600 56 665 
Narrow haze band, . ; : 1 = 9°652 56 676 
Broad and fainter haze band— | 
Ist side, 0°5 = 9°720 . 56 692 
2nd do. 0-5 = 9°760 Magnesia eam 
Very strong line, 5 : : 3 1 9°937 Tron. 56 741 
Faint haze, ; : : : : 0°5 EH 10-020 56 760 
Clear line, ; : : : 2 | 107122 Manganese. || 56 784 
| Hazy line, 1 1: 10°195 56 800 
| Do. 1 10260 56 817 
Strong double line: 1st component, . 3 10°322 Iron and 56 830 
2nd do. 3 Th 10°365 56 834 | Titanium. 56 840 
| Strong hazy line, 3 10°490 56 870 
Do do. 3 10°610 Manganese. || 56 898 
Hazy band almost resolved into lines— 7 
1st side, 0°5 a= 10°727 - 56 924 
| 2nd do. 2 &)} 10°792 Manganese. } 56 940 
) Clear line, ; 2 | 10°852 Manganese. || 56 953 
Strong ‘line, 4 | 10°907 Iron. 56 966 
Clear line, ; : : fal a? | 10°950 Manganese. 56 976 
Do. ; F ; : Bly gv | 10°994 Manganese, || 56 987 
Vine line, . ; ? 4 , eee el \ 11-020 56 992 
Do, Wes A ee ee 11-042 56 997 
BLUE colour ends here ; INDIGO begins. 
Very thin line, . 1 1 11°065 57 002 
INDIGO. | Stouter line, 2 11°095 i 57 009 
Strong hazy Line: Ist siden 4 11143 loin, ) || 57 O20liam 
| Qnddo.. 4 11-181 (| 57 025) Titanium. 5) 7 o31|| 7 
