I! II ! 



I 



i:il |;l II 



1 1 II 



\\ w*l 

 II 



Croup/3 

 Class I 



Flame 



■tfCone 



Flame 



2 n . d Ccne 



Flame 



Spectra emitted by Iron Vapour in the air-coal gas flame. 



Fig. 2. 



<o 





m 



■ 



■MS 



CI ass III 



VtFlame 



\Flame 



N \}2 nd Cone 



\Flame 



i trut»t-tt 



1 ll;!!tl:»lll!lM|lt 



mMtti^Ui^y^Ml^^H 



Groupy 



Class T 



emitted by Iron Vapour in the air-coal gas flame. 



n 



Group cL 

 Class I 



irnMiii. 

 «» .mi nun i i j 



Spectra of Iron. 



1. Oxy-Acetylene Flame. 



2. Self-Induction Spark. 



