GASEOUS SPECTRA IN VACUUM TUBES. 135 
NILE ROU SOC DE. Lavnesine-Gas. ' Enp-on TLuBE. 
August 19, 1879. 
== NO, 
‘ . Left unclaimed 
Colour. Subject of Observation. Intensity. ge ee W.N. Place. | Impurities. eae Fela ioe 
oS ae Ea | ae | re {| 
Crimson- les : : 1j Aacuniacs | x - 
azy maximum line of a band o : ; one of any 
Be haze, . é : ; - ie EE eeeoee importance. 
Another like it, : i : 0:2 Ea 33 860 Nitrogen 
Others similar as far as, : 0°3 ns 36 920 ? | 
a It | 
Haze band, . : : , : 1:0 HY | eerily Nitrogen 
2 : 37 224 5 
Red. a j a 37 426 || Wiebe 
Oo. do. . . . . . Hi 37 758 Nitrogen 
: : 37 856 oem 
a Dor vdo., . : ; ‘ : P5 nf 38 234 | Nitrogen : 
(WV. B.—One more such band ; and then comes Red Hydrogen. ) 
Scarlet-Red. Part 2. 38 285 | 
Haze band, . ; c 15 i 38 340 Nitrogen 
Red Hydrogen (not very strong, 
only an impurity), 5 | 38 701 Hydrogen 
a Haze band, . 4 : : i 1°5 } a oe Nitrogen 
’ Light-Red. Domido:) . ; : : : 1:5 a oe Nitrogen 
Do, do  . : : : 7 2°0 HE fe ae Nitrogen 
Hard-edged haze band, . ‘ , 2°0 a ae Nitrogen 
. Do. do. c © : 2°0 re ue Nitrogen 
pene A distinct line (Ox.? Neb : | 
Tazo: . ( iy "Res ba 2:0 ue | 4 984 Oxygen 
. Fainter line in haze region, . 10 41 470 Hydrogen | Nitrogen 
Sudden beginning of hard, bright , he 
—— haze bands generally with faint, 3 ie ee oom aus | 
dark, double line down middle, . ¥, tine, 
Do. do. c 3 ie nr Nitrogen 
Do. do. ; 3 ic ag Nitrogen 
43 006 ; 
Do. do. : 3 Nitrogen 
Yellow eee . 
| Part 3. 
Hard haze band, . : : : 3 HE re ao | Nitrogen 
_————— Do. do. : : : 5 25 HE a ie | Nitrogen 
Do do. 3 a rae ! Nitrogen 
Last sharp edge of broad haze band, 15 a 44 799 || Nitrogen 
eon, Several thinlines, . . .| 1-0 i ieee Nitrogen 
ae edge of brilliant band, . : 4 fae 45 245 || Carbon 
tegion of excessively thin cl 45 613 “ting 
aS zee ONS | ini) 48 ost oe 
Line among fainter ones, 2 lhe 46 429 Nitrogen 
2 mse 46 561 Nitrogen 
2 alle 46 725 | Oxygen ? 
