l6 A VOYAGE TO Book! 



ridians being corredled from the obfervations of the fa- 

 thers Laval and Feuillee. 



Variations ohferved hy Bon GEORGE JUAN, the 

 longitude being reckoned weft from Cadiz. 



Dee:, of 

 Lat. 



Dejr. of 

 Long. 



Variation 

 obferved. 



Variation by 

 the chart. 



Differ- 

 ence. 



27 30 



1 1 



00 



8 



00 W. 



9 



ooW. 



I 00 



^5 30 



14 



^0 



6 



20 



7 



20 



I 00 



24 00 



17 



00 



4 



30 



6 



00 



I 30 



23 20 



18 



30 



3 



30 



5 



00 



I 00 



22 30 



20 



00 



2 



30 



4 





2 00 



21 50 



22 



GO 



I 



30 



4 



00 



2 30 



21 35 



26 



00 



0 



30 



3 



00 



2 30 



i6 20 



43 



00 



4 



00 E. 



2 



30E. 



2 ' 00 



15 40 



45 



00 



5 



00 



3 



20 



I 40 



Off Martinico 





6 



00 



5 



00 



I 00 



Variations ohferved hy the author^ the longitude being 

 reckoned from the former meridian, 



Deg. of Deg. of Variation Variation by Differ- 

 Lat. Long. obferved. the chart. ence. 



36 20 



00 



25 



9 



30W. 



13 



ooW. 



3 



30 



31 23 



08 



22 



7 



00 



10 



30 



3 



30 



30 II 



10 



21 



6 



00 



9 



30 



3 



30 



26 57 



14 



54 



4 



CO 



7 



00 



3 



00 



25 5^ 



15 



59 



3 



40 



6 



30 



2 



50 



16 28 



43 



46 



0 



30E. 



2 



00 E. 



I 



30 



J5 20 



47 



32 



2 



30 



4 



00 



I 



30 



OffCape 



de la Vela 



6 



00 



7 



30 



I 



30 



To the above obfervations on the variation of the 

 needle, compared with thofe on the variation chart, firit 

 publiflied by the great Dr. Halley in 1700, and cor- 



redted 



