356 



KEPOKT — 1884. 



Aluminium. 



* Observed also by Lockyer. 



t Not identified by Lockyer ; the 'indices' attached to these numbers represent the comparative 

 lengths of the lines as given by Lockyer. t 3UG0-6 and 3943-U Lockyer. § see Cadmium. 



Notk — Becquerel has obs-rved infra-red bands in the Arc .Spectrum ut Aluminium at 11280 and 13615. 



