510 A VOYAGE TO Book IX-. 



Om the 15th of May, namely, before he began to 

 fleer W. we fpoke with the Marquis d'Antin, and her 

 captain gave to nnderftand, that according to his 

 reckoning, the fhip was then 45°, 3^ E. of the meri- 

 dian of Conception. Whereas the diftance, according 

 to my account was only 34^, 19^. Thus the fnip, ac- 

 cording to his computation, was 10°, 44^, further to 

 the eaftward than by mine, and the difference on the 

 Slip's arrival at the iHand, will be 2^, the diftance the 

 currents had carried him to the eaftward beyond what- 

 he had judged. The captain of the Delivrance, on 

 the fame day, made theftiip 39°, 15', eaft of the me- 

 ridian of Conception that is 4°, 56^ more than I ; 

 and confequently on reaching the ifland, his account 

 v/as 7^, 40', further to the weftward than the ftiip. 

 Others, who kept a journal on board the Delivrance, 

 differed as much fome nearly agreeing with me, 

 namely, thofe who had made no allowance for the 

 currents whilft others approached nearer to the ac- 

 count of the captain of the Marquis d'Antin, having 

 uhd an equation in refped: to the current?. But ever}?" 

 one, at making the ifland, found their reckoning er- 

 roneous j the fhip, according to their accounts, being 

 farther to the weftward than ftie really was •, but dif- 

 fered in the quantity of that error, according to the. 

 d liferent allowances they had made for the fetting of 

 the currents. 



The difference betwixt my account and that of 

 the captain of the Marquis d'Antin, who was one of 

 thofe who made the fhip fartheft to the eaftward, pro- 

 ceeded from the captain's knowing by obferving the 

 variation of the needle, that,the frigates made more 

 way than the reckoning allowed of, and therefore con- 

 cluded that a correction was neceffary, v^^hich he per- 

 formed by adding a proper diftance, from the journals 

 of ethers, and thence inferred that the velocity of the 

 currents was confiderable but as that really exceeded 

 the i^llowance he made for ir, his fnip was always ta 



" ^ ' tha 



