106 



The co-latitudes are each determined by a mean of the number of 

 observations of each star above and below the pole as annexed. 



By 226 observations in 1808 and 1809 I had deduced 

 for column A 36°. 36'. 45",65 

 B 45 ,85 



-i C 46 ,54 



15, Let c r: the correction of 57",82, that is, let 



w'— 1 



an. I" 



= 57",82-i-c, 



then by comparing the co-latitudes in column D determined by Po- 

 laris, jS Ursae mi noris and j8 Gephei with the same determined by the 

 other ten stars, we have 



