Smithsonian Report, 1905. 



Plate VI. 



I.O I.I 1.2 



1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 



Absorption of Solar Envelope. 



Ordinates, logarithm of intensity of radiation along diameter of solar image. 

 AbscissEe, computed length of path of ray in solar envelope. 



