39 



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

 dereal time for this station (at 15/?.. :37m.) + 1 38 33.26 



By comparison — Chronometer No. 141, was slow of 

 mean solar time for this station (at lOA. 48m. 

 mean time) - - - - - — 4 44.22 



2M. 1859, June 6th. At the same Station. 

 Sidereal chronometer No. 2557, fast: 



\st Set. 

 By 9 observations on y' Leonis, west h. m. s. 



(at 14/i. 19w.) - - 1 38 51.20 



By 12 observations on Cygni, east 



(at lU. 51m.) - . 1 38 51.26 



Is^ 12e5?/7/— Chronometer No. 2557, 



fast (at 14//.. 38m.) - - 1 38 51.23 h. m. s. 



4- 1 38 51.23 



2^ Set. 



By 11 observations on <^ Leonis, west 



(at 14^. 04m.) - - 1 38 51.20 



By 18 other observations at a later 



period of the night, on Cygni, 



east (at lOh. 16m.) - - 1 38 51.52 



2d Result— Chroi^omeier No. 2557, 



fast (at 15A. 10m.) - - 1 38 51.36 



4- 1 38 51.36 



Sd Set. 



By 13 observations on « Lyroe, east 



(at 15/*. 18m.) - - 1 38 51.82 



By 15 observations on a (or 12) 



Cap.um Venaticorum, west (at 



IGh. 12m. - - - 1 38 51.50 



Sd Result — Chronometer No. 2557, 



last (at 15A. 45m.) - - 1 38 51.66 



1 38 51.66 



