aai. 



Machine. 

 Turns % O Cor.+ 

 \%s>(, or lead 



: '/J-0 



tiofUnn ft in pi'.rature 

 . \h. of thcrnwmeter 

 Corrrvh'd U />> /»■ nUurtl 

 Air Surfaer 

 Trawl or dredfri 



Reel, 



Depth 



/ 



SOUNDINJ* WIRE. 



DOWN. 



\ 



4 



J 1 



1 



c 



'u 

 4 



i 



at 



i 



ooo- 



?00 

 300 



400 

 5<x> 



700 

 Koo 

 goo 



!>MI 



1 100 

 1200 

 J 300 

 r.iou 



17O0 

 l800 

 l>j>*> 

 2000 

 2100 



'.'30O 



X 300 



240O 



OS0T. 



MA 



DREDGE ROPE. 



HOWN. 



i 



