t^. ^ ^i-^ /Jff 



Depth (p(c I 



I 



'^^ Cor. 



Corrc/ited tetnpereUuro 



Air // Sur/'aoe (jO 



Trawl or dredge 



Drift 



SOUNDING WIRE. 



TURNS. 



300 



MO 

 600 



Bon 

 900 



tf»<KJ 



luoo 



T300 

 IJOO 



1500 



f(KK> 

 I7IXJ 



aooo 



DREDGE ROPE- 



DO WW. 



