310 
Colour of the 
Continuous 
Spectrum at 
the Place. 
GREEN. 
PROFESSOR PIAZZI SMYTH ON 
Object Observed, generally a black, fixed 
Fraunhofer Line. 
Fine line, . - 5 5 
Sharp double line: 1st component, 
2nd do. 
Sharp but unequal pair: 1st component 
2nd do. 
Sharp fine line, 
1 line, little more than cloud— 
1st edge of its nebulosity, 
a edge of of its line, faint 
UL 
Qnd edge ee ‘said line, 
2nd edge of the nebulosity, ” 
Sharp fine line, 
Sharp stronger line, . 
Sharp line, : 
Do. 
Do. 
Sharp fine line, 
2? line, cloudy exceedingly— 
Ist edge of its nebulosity, . 
Ist edge of its line, faint 
but thick, . 
Qnd edge of do. 
2nd edge of nebulosity, 
Line of blacker matter pee so in 
Angstrom), ‘ : : 
Fine line, 
, strong clear line, 
4, hazy, broad, and faint— 
Ist edge, : 
2nd do. 
Sharp line, 
Do. : 
Very fine line, . 
Strong line, 
Fine line, ; 
Very fine line, . 
Strong line (very faint in Angstrom), 
Fine line, 
Double line : 1st component, 
2nd do. 
Double line: 1st component, 
2nd do. 
Strong line, 
Very fine line, . ‘ : ; 
Very thin double : 1st component, 
2nd do. 
Strong close double : 1st component, 
2nd do. 
Fine line, . A | 
Strong hazy line, 
te-focussed Telescope. 
Same hazy line, , : : 
Sharp double line : 1st component, 
2nd_—s do. 
Fine line, 
Intensity 
thickness 
of line. 
* Go ox 
OrPrHOHH oN CO 
nr 
SCHOO CS. ae 
cn ~r 
Or 
on "pe 
HHOHD onn PR Ol uw 
“or 
HOt 
wreprp coon meet 
Cror o Oo 00 
onrrcw 
of black, or 
Appear- 
Concluded 
WAVE- 
NUMBER- 
PLACE, per 
British Inch. 
48 910 
48 917 
48 925 
48 952 
48 958 
48 979 
~ Fhe 
Breadths &| 
for) (o} Doubles. =a 
ic} 
g 
48 996 
49 002 
49 005 
49 011 
ance by Wiicrometer DATA Chemical-origin- 
hical : data fr 
pe es Reading. Pee pee 
tive Rev Grating Nor-| Thalen, &c. 
symbol. mal Solar 
Spectrum. 
; 6°100 
| I 6'128 Iron. 
| 6167 Tron. { 
}) | 6°283 . Calcium. 
ha 6312 Titanium. 
| 6°410 Tron. 
|= 6°485 
Ki B 308 | 49 004 Magnesium } 
= 6°556 
| 6°604 
| 6°659 Tron. 
6-712 | 
6°780 | 
6-814 | Nickel. 
| 6°928 
6°945 
6966 : 
49 107 |Ma esium | 
6:982 = 
7000 
| 7018 Iron. 
j 7:047 
| 7127 |49142| tonand 
Nickel. 
Sat 49 159 Magnesium | 
\ 7247 Tron. 
\ 7287 Tron. 
' 7323 
| 7°430 49 210 Tron. 
1 | 7573 Iron, 
‘ 7°670 
| 7716 Nickel. 
' 7743 Sodium. 
ry 7-792 2 { 
| 7830 Sodium. 
[ T 7885 Iron. 
| 7°924 Tron. 
| 8038 Iron. 
' 8116 Nickel. 
; 8177 
' 8190 
| \ 8:278 
| 8°285 
fipdes 8332 Nickel. 
HE 8°440 49 426 Tron. 
HH Ee 8-460 
| 8°558 ws 
lI 8°574 49 438 Nickel. 
| 8°635 
Saree ee eee, ee eee) eee eee ee 
49 022 
49 035 
49 047 
49 064 
49 072 
49 097 
49 102 
49 106 || 
49 110 
49 114 
49 118 
49 124 
| 49 142 
49 158 
49 163 
171 
180 
188 
212 
233 
262 
270 
277 
288 
296 
307 
315 
340 
856 
370 
373 
391 
393 
404 
426 
426 
440 
443 
457 
7 
6 
3 
6 
ul 
