Mean by first wire 

 Chronometer fast . 

 Sid. time . . . 



AT THE OBSERVATORY, CAMBRIDGE, MASS. 



DECEMBER 27 and 38, 1849 Continued. 



A. m. . 

 57 19.14 

 58.50 

 56 30.64 



A a. 



5.82 



No. of 

 obs. 



A. m. s. 



Mean by second wire . 058 6.85 

 Chronometer fast . . 58.50 



Sid. time 57 8.35 



441 



A o. No. of 

 i. obi. 



6.12 



A.m. t. 



Mean by first wire . . 12 11 42.57 

 Chronometer fast . . 58.50 



Sid. time . 12 10 44.07 



No. of 

 obs. 



29.00 



A. m. s. 



Mean by second wire . 12 11 57.42 

 Chronometer fast . . 58.50 



Sid. time. . 12 11 58.92 



A a. No. of 

 >. obs. 



28.77 



Mean by first wire 

 Chronometer fast . 

 Sid. lime 



A. m. t. 



12 9 28.32 



58.50 



12 8 29.82 



An. 



23.61 



No. of 

 obs. 



A. m. 9. 



Mean by second wire . 12 943.19 

 Chronometer fast . . 58.50 



Sid. time . . 12 8 44.69 



A a. 



22.72 



No. of 

 obs. 



Mean by first wire 

 Chronometer fast . 

 Bid. time 



A. m. f. 



12 9 28.32 

 . 58.50 

 . 13 8 29.83 



No. of 

 obs. 



22.61 



A. m. c. 



Mean by second wire . 12 943.19 

 Chronometer fast . . 58.50 



Sid. time 12 8 44.69 



A a. 



22.72 



No. of 

 obi. 



56 



