122 PROFESSOR PIAZZI SMYTH ON 
CYANOGEN. Very Op TusBe (END-on)—continued, 
; ' - Left unclaimed 
Colour, Subject of Observation. Intensity. ae W. N. Place. Impurities. Gonnens for Cyanogen 
Part 3—continued. 
Gmch, Grand line followed by faint haze, | 25 |b. }] 49 S38 Cyonee 
Very black space follows. 
System of clean lines, but utterly 2 50 019 Gwar 
altered if condensed ADE be 1 Ih 50 191 Hydrogen ? 2 yanegens 
employed,. . « 03 50 287 ener 
Black space follows. 
Inverted band ending sharply, but ; 
changed by condensed spark into aS 50 629 Cyanogen- 
a double line, the brightest of the a\\ 2 =H 50 779 Hydrogen + } band 
whole spectrum, . 
Black space follows. 
G stat 51 117 
roup of very thin lines, ; il mM 51 275 D 
Very thin line, . : , : 05 | 51 465 Hydrogen ? 
Hazy and thin line, 0°6 nih. 51 707 2 Nitrogen? 
Glaucous. Signal line, clear and sharp; not ‘h 
altered by condensed spark, Z | 52 019 : 
Another similar, supposed Glaucous 
Hydrogen, not altered by con- 3 1 52 257 Hydrogen 
densed spark, 
Part 4, 
0:2 ; 52 282 
| 1:0 1 52 423 Cyanogen 
: Oyen en 
Perfectly sharp lines in black space, ay I 52/868 : Baaeoe! oR 863 
08 \ 53 328 
os UG 53 659 
L 0°3 ! 53 795 
Signally bright line followed by haze 3 , 53 963 Cyanogen 
(not Nitrogen nor Carbon), 0°2 Ee 54 260 53 963 
2 i 54 570 |) - Cyanogen ? 
f 07 ' 54 694 
—-| Clear lines in black space, ee \ . a fee Hyareeens 
0°8 I 55 189 
Hine L 0°5 I 55 310 Hydrogen? 
Haze band, 0°3 55 782 
- Dom 1:0 56 589 
Day. 13 57 354 
Indigo. Thin line, 1:0 | 57 744 
Haze band, . 07 57 987 
Do. 0°5 Vins 58 159 Oxygen? 
Hazy line (perhaps faint violet H), 10 BE 58 461 Hydrogen 
Hazy band, . 0°5 cs. 58 613 
Very black space follows. 
Violet. 
Part 5 poe space. “Pras | 
Gran y strong violet line, followed | ; 
by a band, specially characteristic ae E:::. He red Crane te 
of Cyanogen, ‘ 5 : 
Line begins a band, } aa} Ii, Be ac y Cyanogen? 
Line, . F ‘ : 1:0 | 60 541 Nitrogen ? 
Benen) faint haze follows, . .| | | «n= 
azy line, . : 1:0 61 284 Nitrogen ? 
Lavender. Black space follows. 
Line begins a haze band, : : 1°5 a. be 62 691 Nitrogen ? 
Faint haze band, . ; F 0°3 : 63 808 
Very faint haze, 01 64 836 
End of Spectrum. 
