THERMOMETRICAL OBSERVATIONS. 

 Rate of the Clock's going up the St. Mary's, 



295 



Note, In the above ftatement, vvhere the equal altitudes, 

 and the pafTage of the © over the meridian have not given 

 tlie fame error, a mean has been taken, however tlie dif« 

 ference in all cafes was fo fmall, that it might arife from 

 a want of perfeiftion in making the obfervations themfelves. 



Kefult of the obfervations made up the St. 

 Mary's for determining the longitude. 



Feb. 



Q.q 2 



Reiiilt 



