AT THE NAVAL OBSERVATORY, WASHINGTON. 

 DECEMBER IT, 1849 Continued. 



Results. 



Means of chronometer times. 



369 



MarsN. P. B. Z 405.56 



Mars S. P. B. Z. 405.56 



h. m. s. 



. Sixteen comparisons . . 41841.53 

 Correction oi chronometer -J-2 19.18 



h. in. s. 



. Twenty-two comparisons. 43151.35 

 Correction of chronometer -f- 2 19.20 



