86 



TABLE OF THE VARIATION OF THE COMPASS ; 



OBSERVED ON BOARD (aFLOAT). 



Date. 



Lat. 



Long. 



Var. 



Date. 



Lat. 



Long. 



Var. 



North. 



West. 



West. 



South. 



West. 



West. 



1831. 















1832. 













Dec. 30 



43 



20 



1 2 



00 



00 



0" 



March 30 



18 



07 



38 



38 



2 37 





A 0 



61 



1 2 



on 





Q4 















EAST. 









1 2 



An 



24 



18 



April 



3 



23 



22 



42 



07 



2 19 



31 





00 









40 







At Rio de Janeiro. 



1 55 







1 R 







0 A 



2*^ 















WEST. 



1832. 















May 



13 



18 



14 



38 



52 



1 04 



Jan. 1 





A 1 





00 



2'3 



00 





14 



17 



12 



38 



47 



1 00 



2 



0 / 



20 





"^O 



2Q 



£^4 







17 



14 



38 



48 



1 15 



4 



33 





16 



1 0 



0 0 



00 







16 



35 



38 



48 



1 52 



5 







16 



20 



20 



A 1 





15 



15 



01 



38 



41 



1 30 







QO 



16 



22 



20 



48 





23 



13 



25 



38 



37 



2 08 



7 



28 



20 



16 



1 



20 



24 





25 



14 



42 



38 



22 



2 20 





28 



1 2 



16 



20 



20 



20 



.. 





15 



29 



38 



24 



2 54 



*.*. 8 



26 



'^0 

 0\f 



16 



48 



20 



04 







15 



25 



38 



24 



2 42 



9 



^0 



26 



18 



02 



1 0 



'■ y 



oy 



.. 



26 



16 



20 



38 



24 



1 59 





2a 



d.O 



18 



42 



10 



00 







17 



31 



38 



23 



2 12 



10 



2Q 

 ^0 





1 0 



' y 



47 



18 



47 







17 



35 



38 



23 



2 20 





22 



oy 



20 



14 



18 



4^ 





27 



18 



59 



38 



44 



1 14 



11 



22 

 2 1 



02 



20 

 20 



26 

 •^Q 



oy 



18 

 18 



1 0 



22 



June 



1 



22 



42 



40 



21 



0 03 



EAST. 





2 1 



•^8 



20 



42 



18 



"57 





2 



22 



58 



41 



15 



0 33 



12 



20 



42 



2 1 



2 1 



18 



24 







22 



58 



41 



14 



0 15 





20 



18 



2 1 



28 



18 



20 



July 



5 



23 



03 



43 



06 



1 39 



13 



19 



31 



2 1 



0/ 



18 



06 





8 



24 



06 



42 



53 



1 57 





19 



06 



22 



1 1 



1 1 



oy 





12 



26 



33 



43 



48 



3 39 



14 



17 



50 



23 





^ / 



06 





13 



27 



13 



45 



48 



4 35 



15 



15 



29 



23 



0^ 



» D 



«;2 







27 



14 



45 



50 



4 34 



. . 16 



15 



17 



23 



35 



' D 



22 





H 



27 



16 



46 



16 



5 10 



Feb. 7 



14 



54 



23 



30 









17 



29 



53 



48 



13 



6 52 



Q 



if 



13 



20 



25 



20 



14 



4Q 



^y 







29 



52 



43 



12 



6 02 



10 



12 



17 



26 



25 



1 



4Q 





18 



31 



09 



48 



57 



7 50 



11 



8 



50 



27 



02 



I 2 



44 





2 1 



34 



09 



52 



03 



10 27 



14 



2 



10 



27 



50 





08 



Aug. 



20 



35 



20 



56 



47 



12 30 



15 



1 



20 



29 



05 



1 0 



on 



oy 





21 



35 



49 



56 



49 



11 21 



.. 16 



1 



00 



29 



23 



00 



"y 





.. 





35 



54 



56 



47 



11 36 





0 



51 



29 



25 





20 





22 



36 



53 



56 



34 



12 17 





SOUTH. 















36 



55 



5S 



35 



12 23 



17 



0 



01 



29 



59 



8 



^8 





23 



37 



02 



56 



36 



13 07 





0 



28 



30 



i8 



8 



1 8 



Oct. 



27 



At Monte Video. 



12 42 





0 



28 



30 



18 



8 



no 



XT * 



31 



34 



50 



57 



13 



12 09 



19 



3 



29 



31 



57 



8 



00 



Nov. 



1 



34 



42 



57 



28 



12 24 



20 



Fernando de Noronha. 



7 



53 





2 



34 



35 



57 



55 



11 06 



21 



3 



09 



32 



02 



7 



54 





14 



34 



55 



56 



19 



12 00 



23 



5 



04 



32 



01 



7 



45 





26 



34 



58 



56 



10 



12 56 



March 1 8 



13 



12 



38 



34 



2 



07 





27 



34 



48 



56 



42 



12 26 



19 



13 



29 



38 



30 



1 



47 





29 



35 



07 



56 



05 



12 29 



.. 20 



13 



1 1 



38 



29 



2 



1 1 



Dec. 



3 



40 



46 



62 



06 



15 26 





13 



38 



38 



20 





21 





5 



42 



16 



61 



32 



16 12 



22 



15 



03 



37 



25 



3 



22 





6 



43 





61 



17 



16 20 





15 



38 



37 



20 



2 



44 





7 



43 



56 



61 



25 



16 40 



23 



16 



29 



36 



57 



3 



44 





8 



45 



12 



62 



23 



17 25 



.. 25 



18 



10 



35 



55 



3 



13 





1 1 



51 



18 



65 



14 



20 26 





18 



09 



35 



58 



2 



50 





13 



50 



42 



65 



45 



20 41 



.. 27 



17 



54 



37 



31 



2 



20 





14 



52 



06 



66 



58 



21 35 



. . 28 



18 



04 



38 

 38 



30 

 46 





55 





15 



52 



39 



67 



14 



21 31 



.. 30 



17 



59 



2 



24 

















