AT THE OBSERVATORY, CAMBRIDGE, MASS. 



JANUARY 1, 1850. 



445 



A a. 



1 13.54 



No. of 



24 



JANUARY 1 and 3, 1850. 



Remarks. 



A star of the 7th magnitude follows the star of comparison by 30s. and is 9' north of it. 

 Observer, G. P. B. 



Mean by first wire . 

 Chronometer fast . 

 Sid. time . . . 



h. m. s. 

 11 47 24.45 

 59.50 

 11 46 25.04 



A a. 



1 50.01 



No. of 

 obs. 



h. m. s. 



Mean by second wire . 11 48 20.32 

 Chronometer last . . 59.50 



No. of 

 obs. 



Sid. time 



. 11 47 20.82 



1 49.78 



