Turn v (nr. I 



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 JfOi "/' Tin rui onictrr 

 OurreaU J ti rnprruturr. 

 M Surface 

 Trawl drtdge or tan&lBS 



SOUNDING WIRE. 



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Depth. 



Cor. 



Drift. 



i hi: ••; . 



Q 

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una 

 i ;<-» 



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DREDGE ROPE. 



It. "VNN. I «'»•. 



