ON WAVE-LENGTH TABLES OF THE SPECTRA OF THE ELEMENTS. 319 



Oxygen Coajj-Gas— continued. 



Oxygen-Carbonic Oxide Flames. 

 Hartley : 'Phil. Trans.' clxxxv. 176 (1894). 



Lithium. 



0.\YHYDKOGEN (FLAME SPECTBUM). 



Hartley : ' Phil. Trans.' clxxxv. 177 (1894). 



