53 



When the observations were made for the latitude on the night of 

 August 13th, 1858, the sky to the south was so much clouded that 

 no more observations could be made in that direction, for that object, 

 than are above reported. The result then obtained agrees, however, 

 well with that derived from the satisfactory set of observations made 

 on the night of January 24th, 1859, on the occasion of a second visit 

 to the same station. It is believed that the result reported is a pretty 

 close determination. 



26?. Ohservntions for the Time. l&o8, Avgvst lUth. 

 Sidereal chronometer No. 2557, fast : 



1st Set. 



By 7 observations on u, Coronre Bo- m. s. 



realis, west (at 19/>. 29m.) - 48 15.59 



By 11 observations on « Andromedse, 



east, (at 19/*. 59//i.) - - 48 15.31 



2d Result — Chronometer No. 2557, 



fast (at 19/i. 44m.) - - 48 15.45 m. 



+ 48 15.45 



2d Set. 



By 12 pairs of equal altitudes of a Cygni, observed 



east and west (at 20/i. 36/w,. 38.43s.) - . -f 48 14.85 



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

 dereal time for this station, Aug. 13th, 1858, (at 

 20//. 10m.) - ^ - - + 48 15.15 



3c?. The Longitude. 



The above determination of the Toledo time, and the Chicago time 

 derived from the observations made there on the nights of August 

 4th and 12th, combined with the following telegraphic signals, give 

 us the longitude of Toledo, Ohio, as follows, viz :— 



