AT THE NAVAL OBSERVATORY, WASHINGTON. 



373 



Remarks. 



Night mifity : ittar of comparison indistinct. 

 Between the observations of December 31 and January 5, the chronometer was set forward 4 in. 



A 6. 



Results. 



Mean of chronometer time. Mars * 



A a. AS. 



h. m. s. in. 8. Rev. 



Mars S. P. B. Z. 523. 15 . . Thirteen comparisons . . 4 238.35 213.73 7.937 



Correction ofchronometer . 1 3.10 2' 2". 00 



A f> 0".04 



h. m. s. m. >. Rev. 



Mars N. P. B. Z. 523.15. . Twelve comparisons . . 42548.43 215.11 6.783 



Correction of chronometer . 1 3.08 1' 44". 25 



Af> 0".03 



