xxiv Astronomical atid Meteorological Records^ £s?c. 



Rate and error of Time-piece to be estimated from the foregoing 

 observations. 

 Longitude deduced &" 22' 56", or 95° 44' 00" W. of Greenwich. 



Equal altitudes of Sun to find error of Time-piece, ( box chrono- 

 meter,) at noon. 



Dec. 26, 1819, 



Time from Noon, 

 A. M. 



2" 38' 24|" 

 2 35 56 

 2 33 27 



Time from Noon, 

 P. M. 



24' 33" 

 22 06 

 19 36 



} 



Error of Time- 

 piece. 



7' 42" 14'" slow. 

 Mean time. 



A mean of nine lunar distances from star Markah, (a. Pegasi,Jfor 

 calculating the longitude. 



Dee. 26, 1819. 



Time of observa- 

 tion per Time- 

 piece, P. M. 



9'' 05' 09" 

 Baromet. 28.60 



Distance of Star 

 and Moon's near- 

 est limb. 



54° 24' 45" 

 Thermomet. 28° 



Index error. 



-f 1' 05' 



Error and rate of Time-piece to be estimated as before. 

 Longitude deduced 6^ 23' 03", or 95° 45' 45" W. of Greenwich. 



Equal altitudes of Sun to find error of Time-piece, (box chronome- 

 ter,) at noon. 



Jan. 3, 1820. 



Time from Noon, 

 A.M. 



2"' 46' 33^" 

 2 44 04 

 2 41 36 



Timfe from Noon, 

 P. M. 



2" 14 

 2 12 

 2 09 



' S3" ■) 



06 y 



37 J 



Error of Time- 

 piece. 



20' 41 "39"' slow. 

 Mean time. 



A mean of six lunar distances, star Pollux, (^. Geminorum,) from 

 farthest limb of Moon, for calculating the longitude. 



Jan. 4, 1820. 



Time of observa- 

 tion, P. M. 



llh 35' 32" 

 Baromet. 29.05 



Distance of Moon 

 and Star. 



46° 38' 36" 

 Thermomet. 18° 



Index error. 



-f 50' 



Error and rate of Time-piece to be estimated from the equal alti- 

 tudes next following. 

 Longitude deduced 6^' 23" 34", or 95° 53' SO" W. of Greenwich. 



Equal altitudes of Sun to find error of Timepiece, (box chrono- 

 meter,) at noon. 



Jan. 5, 1820. 



Time from Noon, 

 A. M. 



3" 02' 41" 

 3 00 23 

 2 58 06 



Time from Noon, 

 P M. 



2" 25 

 2 23 

 2 21 



' 46" ") 

 27^ [ 

 09 J 



Error of Time- 

 piece. 



24' 08" 39" 'slow. 

 Mean time. 



