88 



TABLE OF THE VARIATIONS OF THE COMPASS. 



Date. 



Lat. 

 South. 



Long. 

 West. 



Var. 

 East. 



Date. 



Lat. 

 South. 



Long. 

 East. 



Var. 

 West. 



1835. 















1836. 















Dec. 



6 



21 



51 



166 



37 



10 



27 



May 



15 



27 



33 



40 



52 



21 



10 





/ 



22 



41 



169 



01 



10 



56 





10 



27 



21 



40 



13 



2 I 



36 







22 



41 



169 



1 



1 I 



00 





17 



27 



45 



33 



18 



21 



43 





10 



25 



42 



177 



6 



1 1 



15 





18 



28 



12 



36 



08 



20 



48 







26 



30 



178 



26 



11 



15 





23 



34 



45 



23 



11 



26 



22 





11 



27 



26 



179 



20 



1 1 



22 







34 



53 



22 



33 



28 



oy 







28 



45 



179 



27 



1 1 



54 



June 



29 



22 





5 



06 



1± 

 ■'■+ 



OQ 











EAST. 







* • 



30 



22 



17 



4 



36 





12 





12 



29 



41 



179 



08 



13 



24 











WEST. 











29 



41 



179 



08 



13 



16 



J uly 



0 

 0 



15 



57 



5 



34 



IQ 







14 



31 



25 



175 



59 



14 



15 





16 



13 



02 



9 



07 



IQ 



56 







32 



36 



175 



05 



14 



14 





18 



9 



52 



12 



34 



17 







21 



35 



00 



174 



00 



H 



05 





2 1 



7 



57 



14 



24 



17 



36 











50 









24 



9 



30 



17 



32 



15 



5^ 



Jan. 



1 



34 



04 



172 



13 



05 





25 



10 



07 



18 



58 



15 



57 





4 



34 



40 



165 



37 



13 



26 





26 



1 1 



25 



23 



23 



13 



8 



06 





7 



34 



29 



J 63 



26 



13 



28 





28 



12 



Q4 



28 



31 



26 



Feb. 



21 



42 



53 



141 



45 



8 



21 



• • 





12 



12 



29 



39 



9 



00 





22 



42 



48 



140 



40 



7 



37 





31 



12 



48 



35 



55 



4 



20 









46 







WEST. 







12 



49 



36 



52 



4 



07 



March 2 



39 



123 



42 



3 



35 



Aug. 



0 



13 



09 



38 



30 



2 



44 





3 



38 



20 



123 



36 



2 



50 





7 



12 



44 



37 



04 



3 



18 







37 



52 



123 





3 



48 





0 

 0 



12 



32 



37 



39 



3 



1 1 







37 



54 



123 



1 1 



3 



02 





9 



12 



44 



37 



29 



2 



46 





5 



36 



27 



119 



50 



5 



24 







12 



40 



37 



00 



4 



16 





15 



35 



33 



117 



30 



6 



06 





13 



8 



03 



34 



49 



5 



1 1 





16 



35 



38 



117 



09 



8 



15 



• • 



15 



8 



03 



34 



50 



5 



09 







35 



34 



116 



16 



6 



31 







KORTH. 













17 



34 



48 



114 



00 



7 



20 





22 



2 



32 



29 



07 



10 



23 





^1 



27 



28 



108 



50 



4 



59 



• • 



23 



3 



39 



2Q 



1 1 



10 



27 







27 



27 



108 



4/ 



5 



19 





24 



5 



45 



27 



11 



14 



26 





^3 



23 



44 



106 



17 



3 



58 



Sept. 



4 



14 



43 



23 



39 



17 



02 



April 



25 



20 



24 



104 



09 



3 



22 





9 



23 



43 



33 



50 



15 



26 



13 



12 



21 



94 



04 



0 



04 



.-. 





23 



39 



33 



47 



15 



13 





15 



13 



17 



88 



13 



0 



18 





10 



25 



00 



34 



19 



16 



05 







12 



59 



90 



33 



0 



57 





11 



28 



07 



36 



00 



17 



06 





21 



16 



56 



73 



02 



3 



55 





1 2 



28 



29 



36 



18 



16 



25 







16 



56 



73 



01 



3 



38 



•• 



13 



29 



59 



36 



23 



17 



54 





22 



16 



58 



72 



59 



3 



28 





14. 



31 



04 



35 



57 



18 



28 







17 



13 



71 



48 



4 



04 





15 



32 



03 



35 



05 



18 



22 







17 



24 



71 



51 



4 



10 





16 



35 



38 



31 



32 



21 



34 





23 



17 



36 



70 

 68 



27 



5 



07 





17 

 18 



37 



15 



28 

 28 



54 



22 



09 





24 



17 



52 



30 



5 



39 





37 



49 



00 



24 



00 





26 



18 



35 



63 



34 



7 



36 





19 



38 



35 



27 



08 



25 



21 





27 



18 



43 



62 



20 



8 



06 





25 



38 



54 



25 



03 



23 



21 







18 



43 



62 



14 



8 



1 1 





26 



40 



35 



22 



45 



25 



00 





2*8 



19 



20 



60 



12 



8 



59 







41 



28 



21 



31 



25 



38 



May 



13 



25 



42 



46 



42 



16 



16 





27 



42 



c6 



20 



06 



26 



00 





15 



27 



30 



41 



08 



20 



37 





27 



42 



20 j 



19 



50 



26 



03 



All the observations for variation, afloat, were taken with a very good Gilbert's compass, 

 placed on a stanchion above the poop, where it was found, by trials in various latitudes, to be nearly- 

 free from any effect of local attraction. 



Erratum in page 65, line 4<, of figures,/or o 1 5 read 2 15. 



