Hartitey—Oceurrence of Cyanogen Compounds in Coal-Gas. 298 
THE y Group. 
Eder and 
Hartley. | Valenta. (Small 
dispersion.) 
4735°5 met 4739-80 Watts. = 
pees ( 4732-33 
4732 4737 4731-90' Fievez. H aeriiee || Me GB 
| 4720 ae 4719°87 K.&R.| 4720°1 FB. 
| 4702 4697 4702°30 K.& R.| 4702 F, 
Blue, | 4688 4684 4688:20 K.&R.| 4688-99 FE. 
| 4679 4679 4678:90 F. _ 
| 
| 4672 au 4672°20 F. = 
{| 4462 bie as = 
Tue « GROUP. 
Ed d Valenta. 
| Hartley. (Guallldigsersiont| Som 
Hl ane tie ae 
4395 = — 
4378 4380 4381 L. & D. 
Violet, 
4364 4364 4365 L. & D. 
4350 4348-4 = 
4342 4344 ae 
[Tue § Grove. 
