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 . . 4 18 44.53 

 Correction ol chronometer +219.18 



h. m. s. 



Twenty-two comparisons. 43151.35 

 Correction of chronometer +219.20 



47' 



