82 



Mr. C. J. Lundstrom. 



Pi 



7i 



9 



6946 



6705 



6690 



6255 1 



6211/ 



6174 



61061 

 6079/ 



6028 

 5972 

 5923 

 5895 

 5889 

 5832 

 5797 

 5774 

 5746 

 5712 

 5629 

 5609 

 5585 



5568 



5532 



5421 

 53931 

 5392/ 

 5349 



5338 

 5318 

 5267 

 5226 

 5190 

 5153 

 5135 

 5099 

 5056 

 5018 

 4977 

 4936 



2-7 



2-95 

 1 -84 



1- 4 

 1*46 



2- 7 



1- 24 

 0-7 



2- 1 

 1 '4 



2-2 



2*3 

 0-9 

 0-5 

 0-8 



0- 95 



1- 4 

 1 -4 



0- 8 



1- 5 



•9 

 •7 

 •5 

 •3 

 •2 

 •06 



K 

 Li 



Mn 9 3 



CaO 



Mn 2 3 



Mn 2 3 

 JSTa 



K 

 K 

 K 



Mg 

 K 



Mn 2 3 

 Mn 2 3 



CaO 

 or 



BaO 

 Mn 2 3 

 Mn 2 3 

 Mn>0 3 

 Mn,0 3 



K 



K 

 Mn 9 3 

 Mn 2 3 

 Mn 2 3 

 Mn 2 3 



Mn 2 3 

 Mn 2 3 

 Mn«0 3 

 Mno0 3 

 MnoO, 



Notes. 



Once observed only. 



Sharp, red line, always visible. 



Faint line, sometimes visible. 



j- Broad, red band, not degraded. 



Red line, bordered by absorption 

 bands. 



f Red band on a dark background, 

 I or possibly the continuous 

 j spectrum bordered by absorp- 

 L tion bands. 

 Edge of a dark band. 

 Bright line 1 late in appearing and 

 ,, „ / soon disappearing. 



Three yellow lines on a dark back- 

 ground, not always seen. 



Yellow faint line, once observed. 



Yellow line. 



Rarely seen. 



Green line, always seen. 



Sharp green band, maximum of 



light of the group. 

 The end of the group. 



I Green band on a dark baek- 

 [ ground. 



Sharp green band. 



f A double line, the brightest of 



"j. the group y. 



Sharp bright band, shading away 

 towards the red, forms the edge 

 of the group y. 



Once visible ; fain^ line. 



Green line on a dark background. 



T Four bands, equally bi'ight and 

 j distinctly appearing. 



Rarely seen. 



Double line, always appearing. 

 Band, always appearing. 

 Band, generally visible. 



5> 35 3 3 



,, rarely visible. 



During the warming of the converter, which generally takes a 

 longer time than at Langshyttan, there first appeared only a faint 

 continuous spectrum, then the Na and Li lines. Next came the 

 most important bands of the groups ft, 7, and c. The red region of 

 the spectrum appeared as a dark band, shading away from 6632 



