146 



REPORT ON 



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Sol 

 a. 



Deviation of 

 Compass in 

 Degrees. 



eviation of 

 Compass in 

 Points. 





Assumed Magneti 

 Direction of 'Ship' 

 Head. 



&28 



oooooooooooooooooooooooooooooo 



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A deviation of the 

 a deviation to the W 

 From the observa 

 deviation are ol-taine 

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Corrected 

 Deviation o 



g.o 



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ooooooooooooo 



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