W7, 



>0i4d^r lead 



Corrected Unhpcmiure 

 Air Sitrfaoi^ <^ 



Trawl or drodgc 



Cor. 



Drift 



SOUNDING WIRE. 





DREDGE ROPE. 



DOWN. 













o 



tP 









1 • 





















JCJO 











1 Odd 











MO 











9oo 











900 





















1 1 





t 

















lyxi 











urx) 











litfo 











rfino 







i: 





1700 

 IKOO 



2100 



flaoo 

 9300 







