38 



By comparison — Chronometer No. 141, was slow of 

 mean solar time for this station (at 8/t. 39m. 

 mean time) - - - - - — 4 41 65 



2\sL 1859, May 24.th. At the same Station. 



Sidereal chronometer No. 2557, fast: 



By 11 observations on « Coronoe Boreali«, east (at h. m. s. 



I2h. 22m.) - - - . ' . 1 37 13.25 



By 11 observations on s Leonis, west (at 12/i. S8m.) 1 37 12.75 



Result — Chronometer No. 2557, fast of sidereal time 



for this station (at 12/t. 30m.) - - +13713.00 



By comparison — Chronometer No. 141, was slow of 



mean solar time (at 8//. 21?«. mean time) - — 4 41.60 



22d. 1859, June Sd. At the same Station. 

 Sidereal chronometer No. 2557, fast: 



Is; Set. 

 By 7 observations on ^ Leonis, west h. m. s. 



(at 1.5/i. 04m.) - - - 1 38 33.25 



By 8 observations on & Cygni, east 



(at 15/t. 24m.) - - 1 38 33.60 



1st Result — Chronometer No. 2557, 



fast (at 15/t. 14m.) - - 1 38 33.42 



+ 1 38 33.42 



2d Set. 

 By 10 observations on a, Lyrce, east 



(at ISA. 40m.) - - 1 38 33.00 



By 10 observations on x, or 12, 



Canum Venaticor. west (at 16h. 



00m.) . - - 1 38 83.18 



2d Result — Chronometer No. 2557, 



fast (at ISA. 50m.) - - 1 38 33.09 



-f 1 38 33.09 



