40 ■ A Voyage to 



Computation-: That might be occafion'd by an Error in 

 the Log ,* but, on the other hand, from 371041, we ad- 

 vanced more to the Southward by fix or feven Leagues in 50; 

 and three Days after, 16 Leagues and a half in a Computa- 

 tion of 70, that is, about a Quarter, afterwards diminifh- 

 ing ,* fo that in about 49 Degrees, 50 Minutes, the Obser- 

 vations agreed very well with the Computation toStreight 

 le Maire, which I found in the Longitude of 61 Degrees, 

 3 5 Minutes, anfwering to die 318 Degrees, 25 Minutes 

 from the Ifland of Hierro, or Ferro, or 316 Degrees, 40 

 Minutes from the Meridian of Teneriff. From thence, 

 I queftion whether the Charts could be corre&ed with 

 good Reafon. as to the Longitude of Cape Horn and the 

 Coaft of Chili ; for the Ships that have ranged the fame, 

 affure us, they found Currents that drove them to the 

 Eaftward, at the fame Time that th.ey reckoned they had 

 gain'd Ground to the Weftward. Hence proceeds that 

 Difference among the Sea-Charts, which allow 100 Leagues 

 from the Streight to Cape Horn ; whereas *hofe that are 

 Manufcript, allow only 40 or 50. This is very certain, 

 that it is but in 55 Degrees^ 50 Minutes Latitude, or 56 

 Degrees at the utmoft ; tho' in all the printed Sea-Charts 

 it is laid down in 57 and a half, or 58 Degrees. As to 

 the Diftance between that Cape and the Coaft of Chili, it 

 is ftill lefs known, becaufe few Ships have ranged the 

 Coaft of Tierra delFuego on that Side. Prudence will not 

 permit any to expofe themfelves ro it, becaufe the Winds 

 generally come up from S. S. W. to Weft, fo ftrong, that 

 they might force them on the Coaft. However, there is a 

 Channel by which they might efcape into the Streight of 

 Magellan. That Channel was accidentally difcover'd on 

 the 25 th of May, 171 5, by the Tartane S. Barbe, as 

 iliall be faid in another Place. 



According to the Aftronomical Obfervation of FatherF^- 

 illie, who places La Conception m 75 Degrees, 32 Minutes, 

 30 Seconds Longitude, that is, 25 Leagues more Wefterly 

 than the Manufcript corre&ed Charts, fuppofing that of 



Streight 



