90 



Mr. C. J. Lundstroni. 







1 



A. 







^otes. 





— 



6705 



— 



Li 









1 



6208 



— 



Mn 2 3 



Faint line. 



t 



1 



6176 



— 



Mn. : 3 







— 



J 5895 1 

 1 5889 J 



— 



IS'a 

 Na 







2 



5709 



07 





Fine line. 



J 



4 



5678 



1-36 



Si 



Strong bright band, with, some ' 













shading towards the red. 



L 



8 



5581 





Mn 2 3 



Strong bright band, shading away 

 to the red. 



r 



6 



5451 



1 '6 



Si 



1 Strong bright band, with some 

 1 shading towards the red. 





3 



5387 





Mno0 3 



[Fainter bright band. 



1 



10 



5353 



— 





J Strong bright band, shading a war 

 towards the red. 





1 



5339 



— 



— 



1 Faint line. 





6 



5264 



— 



Si 



j Like the group £ in the Bessemer 





7 



5227 



- { 

 1 



Mn 2 3 

 Si 



! spectrum. Here 5227 is 

 { strongest. 



1 



7 



5189 





MngOg 







8 



5160 



— 



Mn,0 3 



J 



Faint band. 



I 



2 



50S5 



1 -34 



Mn 2 3 



1 



4 



5043 



— 





Distinctly appearing band. 





3 



5008 



0-7 i 

 I 



Mn 2 3 

 Si 





i 



10 



4986 



1 -06 



— 



Sharp line. 



L 



7 



4963 



2 -26 



Mn. : 3 



Strong band. 



r 



1 



4871 



— 



Si 



Faint band. 



1 



4854 



— 





Strong line or narrow band. 





4 



4809 



0-85 



Si 





2 



4748 



3'4 



Si 



Fainter band. 



6 



4655 



1*34 



Si 



Stronger band. 





2 



4540 



1 '35 





Fainter band. 





1 



4492 







1 Rarely visible bands, difficult to 



i 



1 



4394 







J define. 



In the groap a the lines belonging to Mn 2 3 found in the Bessemer 

 spectrum have appeared only once. Li a and 2s~a a double line always 

 appear, on the contrary, very distinctly. Besides many other bands 

 which are observed in the Bessemer spectrum, viz., /3 X , 71, and 70, 

 there are the groups c and e l and e 2 . In addition, the spectrum of 

 the blue flame contains some bands that are so strong that the 

 appearance of the spectrum essentially differs from that of the 

 Bessemer spectrum. 



All these bands shade off towards the red. The bands 5678 of the 

 group (3, and 5451 of the group 7, have a width and brightness com- 

 parable to those of the band 5581 ; c 3 and e 3 appear more distinctly 

 than in the Bessemer spectrum, and in addition there are six rather 

 bright bands in the blue-violet part. 



The Hue flame did not make its appearance equally soon in the 

 different "blows." Sometimes it appeared immediately at the begin- 



