S4 



KEPORT ON 



Magnetic Dip. 

 Monte Video, January 18, 1866. Needle A. 2. 



POLARITY OF MARKED END NORTH. 



CIRCLE EAST. 



CIRCLE WEST. 



Face East. 



Face West. 



Face East. 



Face West. 



S. 



N. 



S. 



N. 



S. 



N. 



S. 



N. 



1 



148° 50' 

 149 

 149 3° 





149° 20' 



148 SO 



149 O 





31° 0' 

 31 10 

 31 20 





31° °' 

 3 1 4<3 

 31 4° 





149 7 





149 3 





31 10 





31 27 





149 



S 







3' 



19 











31 



7 









POLARITY OF MARKED END SOUTH. 



CIRCLE WEST. 



CIRCLE EAST. 



Face West. 



Face East. 



Face West. 



Face East. 



S. 



N. 



S. 



N. 



S. 



N. 



S. 



N. 





32° 0' 

 32 

 31 5° 





31° 0' 

 31 20 

 31 40 





149° io' 

 149 10 

 149 20 





149° io' 

 149 3° 

 149 5° 





31 57 





31 20 





149 13 





149 . 3° 



31 



39 



3 1 



149 

 8 



22 





Resulting Di 



d: —31° 8' 





