COMPARISON OF CATALOGUES OF STARS. 



405 



Auwers minus Safford. 

 AS. Corrections depending on both a and 8. 



[In units of the third decimal place.'] 



Note. — The residuals in a depending on a alone are so small that I have not considered it worth while to introduce them. 



AS 



Auwers minus Boss. 

 Corrections depending on 8. 



VOL. X. 



52 



