180 



REPORT ON 



* 



c' 





 < 



U 



1 



HH 



trt 



Id 

 O 



O 

 U 



I 



! 







Q 

 u 



g 







.i 



Q 



! 



I 



C 



Deviation o 

 Compass in 

 Points. 



ic 



's 



0000000^0000000000000000000,0 O'O 00 



W w 



-{- 



by 

 fEc 



is design 

 es of the 



Eas 



lu 

 C 



2 



s to 

 follow 



i6'. 

 E 



e 



. 

 above, 



A deviation of the North Point of the Compas 

 a deviation to the West by the sign 

 From the observations given 

 deviation are obtained : 

 A = -f i 



B 







3'.8 



Corrected 

 Deviation of 





N 

 | | 



OOOOOOOOOOOO 

 TfS"1>r^ronN.tO 



o\ l^vO Th CO O m rrt ft ir>\O f^ 

 +++++ 1 1 1 1 1 1 1 



H^H-rH^sleB-**-** 



+++++ 1 1 1 1 1 1 



55 



sign -f- 



C 

 i' 



of 

 th 



