(507. 



Tu.ni* fy Cor.+ 



by /',,. -i 

 Mwl Hi: Irud 



Balhuii tvm.prntiurr. 

 . \ o/' tin rtnom,e.brr 

 Corrrntud lem.prnUurc 

 Air *~ Surface 

 Trriwl or drtulfr 



Urpth 



Car 



Drift 



SOUNDING WIRE. 



DOWN. 



Of, 



Ml 



i i.i'.-i 



p 



tat*— 



•JOQ 



300 



400 

 50a 



(KXJ 



700 

 Boo 

 yoo 

 iooo 



i u.ici 

 iuoo 



I7O0 

 |A>J 

 !<,<-•• 

 . »>.. , 



vi (.»:< 



3200 

 3300 

 3.|0O 



DREDGE ROPE 



1 10 V.N. 



1 



OP. 



