Astronomical ana Meteorological Records^ &?c. xiii 



Equal altitudes of Sim to find error of Time-piece at noon. 



July 18, 1819. 



Time from Noon, 

 A. M. 



3" 13' 111" 

 3 11 50 

 3 10 29 



Time from Noon, 

 P. M. 



Error of Time- 

 piece. 



2' 58" slow. 

 Mean time. 



Latitude of Franklin by observation of July 16 

 Do. do. do. 17 



Do. do. do. 18 



Do. 



do. by mean of three observations 38 57 09 N. 



38° 56' 57" N. 

 38 56 45 N. 

 38 57 46 N. 



Observations at Franklin to ascertain the magnetic variation. 



July 18, 1819. 



Magnetic azimuth of sun's 



centre, A. M. 

 Magnetic azimuth of sun's 



centre, P.M. same altitude 



Magnetic variation deduced 



S.lll° 20' E.* 

 S. 87 50 W. 



11 42 E. 



Rate of Time-piece, (chronometer bij Tobias 8^ Levitt,) at Franklin. 



Daily losing'. 



July 16, 1819. 



July 17, 1819. 



July 18, 1819. j Do. do. 



Slow for mean 



time 

 Do. do. 



1'41" 17' 



2 20 00 

 2 58 00 



38" 43'" 

 38 00 



Data for the calculation of the Longitude of Franklin. 



1st. July 16, 1819. At 8" 08' 35i" A. M. civil account per chro- 

 nometer, the distance of the nearest limbs of the sun and moon was 

 observed to be 62° 23' U", the latitude by observation being 38° 57' 

 09" N., longitude estimated at 6" 10' W. of Greenwich to find the 

 true longitude. 



Longitude deduced, 6'» 11' 43" or 92° 55' 45" W. of Greenwich. 



2d. At 8'' 15' 52" A. M. per chronometer, the distance of the near- 

 est limbs of the sun and moon was observed to be 62° 20' 52^" on 

 the 16th of July to find the longitude. 



Longitude deduced, 6" 11' 58^" or 92° 59' 37" W. of Greenwich. 



3d. July 17, 1819. At %^ 29' 04i" A. M. per chronometer, the dis- 

 tance of the nearest limbs of the sun and moon was observed to be 

 50° 46' 18" to find the longitude. 



Longitude deduced, 6'> 1 1' 431" or 92° 55' 59.1" W.of Greenwich. 



• The eastern and western azimuths are both reckoned from the same point 

 (the south,) disregarding the usual method of stating courses. 



