396 Prof. W. N. Hartley and Mr. H. Ramage. 



and all the strong lines in the groups extending to 3441, correspond- 

 ing to the solar line 0. 



3593-0 3578-0 



The insoluble residue B contained iron, copper, sodium, and a trace 

 of potassium. 



Iron Groups of lines lying between 4045'0 and 3440*0 



Copper . . . Lines with wave-lengths 3290'0 3262- 5 



Sodium... ., .... 5893-0 33030 

 Potassium 4047'! 4043'5 



The metals precipitated l>y zinc, C. These were iron, copper, silver, 

 a trace of lead, also some sodium and potassium. There was also a 

 trace of chromium, and this, like the trace of iron, was probably pre- 

 cipitated as basic chloride or as hydroxide. The wave-lengths of the 

 lines of iron, silver, and copper need not be recapitulated. 



Lead 4057 3682 and 3639 



Chromium 4289 4274 4253 



The metals precipitated by zinc after addition of lead acetate, F. 

 The metallic deposit yielded a complex spectrum containing the 

 lines already mentioned of the following elements : iron, chromium, 

 copper, silver, gallium (a trace), potassium, sodium, and, of course, 

 lead, as this had been added. 



The lead here appears as a banded spectrum, the edges of the 

 bands seen being those at wave-lengths : 



5675 5460 4980 4824 4657 



4597 4370 4314 4225 4140 



4061 4057 3985 and 3954 



Nickel lines. ... 3525 3415 



The copper lines were very strong, the silver weak. 

 The potassium lines were the following : 



4047-1 4043-5 strong, 



then much fainter 



3447-5 and 3446'5. 



