BLUE- VIOLET LIGHT IN TIIK SOLAR CORONA ON AUGUST 30, 1905. 327 



The differences between these intensities and the tabular intensities are the out- 

 standing errors. The ratios of the intensities are calculated with 1 1 '40 seconds for 

 the sixth exposure and the recorded values of the times of exposure for the other 



too 



H 



I 



1500 Scale for h 

 i 



Intensity Curve. 



Log i M- 



-M- 



Correjpondmq points. 

 N? of Photograph. 



o O O O O " J 

 I I ff % to . VLH 



2-0- 



-1-5- 



-1-0- 



-03- 



.- 







TT 



-W- 



a 



-1-0 



Fig. 7. 



