Ch. II. SOUTH AMERICA. 317 



Long, from the Variations. Times of making 



Pays. Lat.South. Mer.of Concep. the Oblcrvaiion. 

 Deg. Mill. Deg. Min. Deg. Min. 



The two laft obfervations were taken in the har- 

 bour of Fernando de Norona; and thole marked 

 with an * were not determined with the defircd accu- 

 racy, fome accident intervening at the time of the 

 obiervation. 



It will be proper, for mariners unacquainted with 

 the precautions cuttomary in a voyage little frequented 

 to obferve, that in this part of the paííáge they may 

 cxpe^Sl to meet with very tempelluous feas, continual 

 fqualls of wind and fogs ; fo that it is abfolutely necef- 

 fary in the night and in hazy days to keep a very care- 

 ful look out againit the ice, large iflands of which, 

 breaking from the ibore*, are driven by the wind be- 

 yond the latitude of 6+°, and ihips too often meet 



with 



