ON WAVE-LENGTH TABLES OF THE SPECTRA OF COMPOUNDS. 311 
ALUMINIUM OXIDE—continued. 
Barium Iopipe. 
Flame Spectrum 
Lecoq de Boisbaudran Thalén Lockyer paenetey ae 
4739°5 
4719 4711°2 47145 In 
4698 4690°0 4694°5 3n 
Y 4 4675 4670°6 4673 4b 
4652 4649:0 4645 6b 
4567 ln 
4544 In 
1 4522 In 
4500 2n 
4478 In 
Barium CHLORIDE. 
Flame Spectrum intensity 
‘ : : and Character 
Lecoq de Boisbaudran Mitscherlich 
y 5313 5314 8b, 
a 5242 5245 10b, 
3 5205 5209 3n 
L5171 5177 4n 
B 5136 5144 9b, 
e 5064 5112 3n 
5076 
Barium BRoMIDE. 
Flame Spectrum intensity 
h 
Lecoq de Boisbaudran Mitscherlich Sogn gent 
y 5410 5393 8b, 
a 5358 5356 9b, 
3 £5304 5312 6b, 
15249 5259 6b, 
B 5206 5217 9b, 
e 5149 5179 4b, 
5102 2b, 
Intensity 
and Character 
Mitscherlich Lecoq de Boisbaudran 
5599 a 5607 9b, 
5384 B 5376 9b, 
