AT THE OBSERVATORY, CAMBRIDGE, MASS. 



433 



DECEMBER 11 and 12, 184O Continued. 



R marki. 



The slai is the same as that used la t night. Wind very high, and the observations bad. 

 Observer, G P. B. 



A. m. s. 



Mean by first wire 113354.42 



Chronometer fast 57.08 



Bid. time 11 32 57.31 



16.44 



No. of 

 obg. 



DECEMBER 13, 1849. 



Remarks. 



The Mar it too faint to be well observed, being occasionally hidden by cirrus clouds. At 2A. the star was 3" south of Mars' north limb. 



Observer, G. P. B. 



A. m. i. 



Mean by first wire . . 1 111.95 

 Chronometer fast . . 56.83 



Sid. lime 1 15.14 



A a. 



50.31 



No. of 



Obij. 



13 



h. m. . 



Mean by second wire . 1 127.97 

 Chronometer fast . . 56.83 



Sid. lime 10 31.14 



A a. 



50.32 



No. of 

 obs. 



13 



A. m. . 



Mean by Ant wire . . 1 20 46 28 

 Chronometer fast . . 56.83 



Sid. time 1 19 49.45 



A a. No. of 

 . obs. 



48.96 



A. HI. s. 



Mean by second wire . 121 2.84 

 Chronometer last . . 56 63 



Bid. time 1 20 6.01 



No. of 

 obs. 



49.00 



A. m. . 



Mean by first wire. . 14246.13 

 Chiononicter fast . . 56.82 



Sid. time 1 41 49.31 



55 



47.42 



No. of 

 obs. 



12 



A. m. *. 



Mean by second wire . 143 2.03 

 Chronometer fast . . 56.82 



Sid. lime 1 42 5.26 



A a. 



47.35 



No. of 

 obi. 



12 



