29 



'ith. 1858, August loth. At the same Station. 1st Detej-mina- 

 tion — By East and West Stars. 



Sidereal chronometer No. 2557, fast: 



By 12 observ^^tions on c<, Coronoe Bo- h. m. s. 



realis, west (at 19/i. 04/n.) - 1 04 48.20 



By 21 observations on a Andromedce, 



east (at 20/i. mm.) - - 1 04 48.51 



h. m. s. 



1st Result— By E. and W. Stars (at 19A. SOtw.) -f 1 04 48.35 



2d Determination — By equal altitudes. 



By 9 pairs of equal altitudes o[ a Cygni, observed 



East and West (at 20//. 36m. 38.42s.) + 1 04 48.36 



Mean, or Result adopted — Chronometer No. 2557, 

 fast of sidereal time for this station (at 20A. 1 3/«. 

 sidereal) this night, - - - + 1 04 48.35 



By comparison — Chronometer No. 141, was slov/ of 



mean solar time this night (at 10/t. Vim. m. t.) — 4 28.78. 



5th. 1859j February '20th. At the same Station. 

 Sidereal chronometer No. 2557, fast: 



I. St Set. 

 By 13 observations on ^ Geminorum, //.. m. s. 



east (at U. 33/n.) - - 1 26 04.08 



By 13 observations on ,3 Andromedse, 



west (at Ah. 56m.) - - 1 26 03.84 



h. 777. 5. 



U'/JRes77Z^— Chronometer No. 2557, fast (at 4/7. 437/7.) + 1 26 03.96 



2d Set. 

 By 14 observations on c« Arietis, west h. m. s. 



(at 6A. 05777.) - - - 1 26 04.46 



By 12 observations on y Leonis, east 



(at eh. 29m.) - - - I 26 04.25 



2d Result— Chronometer No. 2557, fast (at67t. 17?72.) + 1 26 04.35 



