34 



l^th. 1859, April 20ih. At the same Station, 



Sidereal chronometer No. 2557, fast : 



1st Set. 



By 7 observations on /3 Tauri, west h. m. s. 



(at 9k. 37m.) - - - 1 32 59.29 



By 8 observations on cc Bootis, east 



(at 9/t. 49m.) - - - 1 32 59.64 



//. m. s. 



1st Result— Chronometer No. 2557, fast (Rt9h.^3?n.) + 1 32 59.46 



2d Set. 

 By 8 observations on /3 Geminoriim, 



west (at 11/i. 207W.) - - 133 00.04 



By 9 observations on a. Coronse Bo- 



realis, east (at 11 A. 52/71.) 1 32 59.84 



2d Re sidt— Chronometer No. 2557. fast (at llh. 



mm.) - - - - H- 1 32 59.94 



Result adopted — Chronometer No. 2557, fast of si- 

 dereal time for this station (at 10//. 40/^.) + 1 32 59.70 



By comparison — Chronometer No. 141 was slow of 



mean solar time for this station (at Sh. 45m.) — 4 41.06 



15/7t. 1859, April 21th. At the same Station. 



Sidereal chronometer No. 2557, fast: 



By 10 observations on e Bootis, east h. m. s. 



(at lOA. 53m.) - - 1 33 52.18 



By 10 observations on u, Corona) Bo- 



realis, also east (at 11/i. '\om.) 1 33 52.05' 



By 20 observalions on 2 East stars • //. m. s. 



(at llA. IHm.) - - 1 33 52.11 -f 1 33 52.11 



By 10 observalions on /3 Geminorum, west (at 11//. 



24m.) - - - - + 1 33 51.84 



Result — Chronometer No. 2557, fast of sidereal time 



for this station (at 11//. 21m.) - - + 1 33 51.97 



