304 Mr Galbraith oji the Geographical Position of 



Table of Error of the Chronometer. 



August 20. slow . 



... 21 



... 22 



... 23. ... - 



... 24. ... . 



... 25 



... 26 



... 27. ... - 



... 28 



... 29 



... 30 



... 31 



September 1 



... 2 



... 3 



... 4 



. 17.26 

 . 18.54 

 19.82 

 21.10 

 22.38 

 . 23.66 

 24.94 

 20.32 

 27.50 

 28.78 

 30.06 

 31.34 

 32.62 

 33.90 

 35.18 

 36.46 



With the assistance of this table, the calculations for latitude 

 and longitude were facilitated. 



1. The Latitude of the Roman Catholic Chapel at Ayr was determined to be, 



by observations on August 8, Sun, .... 55° 28' 58" N. 



8, Stars, ... 54 



... 24, Stars, ... 50 



... 24, Stars, ... 49 



... 24, Polaris, ... 55 



Mean latitude, 



2. Longitude by Chronometer : — 



August 24, 



... 26, 



29, 



30, 



... 31, 



Mean longitude in time, . . 18 25.4 W. 

 in degrees, . . 4° 36' 21" W. 



3. In like manner, I made the position of Fortincross Castle to be, from ob< 



serrations taken August 9, Latitude by Sun, . 65° 42' 9" N. 



... 11, Polaris, . . 13 



... 11, 0! Aquilae, . . 11 



... 12, Sun, . . 7 



Mean latitude. 



55 42 10 N 



