ULLOA^S VOYAGE TO SOUTH AMERICA. 



665 



I fliall conclude this chapter, with a table of the variations of the needle obferved 

 in my fecond voyage, in the frigate La Delivrance, from Callao to Conception Bay, 



Don George Juan, who failed from Callao, with the Delivrance, as commander of 

 the Lys, another French frigate, made the following obfervations :— 



The fenfible diiFerence between thefe variations arofe from the difference of the 

 needles, by which they were obferved ; and the reafons for that difference have been 

 conlidered in another place. 



The difference of the meridians between Callao and Conception, appears from the 

 feries of obfervations made by us at Lima, and thofe by Father Feuillee, at the fanie 

 place, to be 3° 58', which is the eaftem diftance of Conception from Callao, yet in 

 the maps of this country, it is placed eight or nine degrees to the eaftward, a miftakc 



yoL. XIV. 4 Q proceeding 



