( 477 ) 



events the small coefficients of // in the equations of condition, show 

 clearly that it is impossible to explain any appreciable asymmetry 

 by an excentricity of a few hundredths. The improved agreement 

 near the principal minimum is obtained in the main by shifting the 

 , dM. — y 

 theoretical principal minimum by x C^=0'^.063 in the di- 



rection of the negative time-axis, while at the same time the secondary 

 minimum occurs 0.069 days before the minimum of Argelander's curve. 



