280 



REPORT 1895. 



Table of Standard Wave-lengths — continued. 



* A difficult double. 



t The red component, a difficult double. % A difficult triplet. 



§ The 1 474 lines is a triplet, or rather a double, the red component of which has 

 a weak side-line to the violet ; probably the violet component is due to iron, and the 

 ■weak line to cobalt, but the red is unkno-svn. 



