*77. 



Ol'frl^trYs Data . 



Mtir-hinr /Ctrl. 



Turns, i f* Cor. + 

 SUM^fti- lead ^ i 



JJttttom trtnprnt 1 trrr 

 . a/' th, ri><»i>irtrr 



1 



Corrected Umptrafai rt 



Air 



Tra toi or drtdl 



Surf an 



SOUNDING WIRE. 



DOWN. 



IFF. 



f.f* 



* Ml 



v*> 



**> 



',<*> 

 GuO 

 7uu 



Boo 



(fK* 



louo 

 IluO 

 I *j 



IJOO 

 RlOl 



ItXJO 



770O 

 ISUQ 

 I'jOO 



IfQQ 



Depth 



Cor. 



DREDGE ROPf. 



