4? 



Deptft, 



ItoHmn lom-fHiraXare t^^* f 

 jyo. of ihcrmunH'.tnr 5- 7 . 



Corre4^ed tcrnpiniiiire 3S* t * 

 ^fr ioT^ Surface "^t* ^ 

 Trawl or dredge, 

 ff^.. SOUNDtNG WIRE> ^ DREDGE ROPE. 



Cor. - O 

 Drift 



DOWN. 



, J 

 \ 



^ s 



J 



^ .J 



200 



300 



()i»t 

 1000 



1300 

 I4C1O 



l6fxj 

 I7ix» 

 iHfjo 



2000 

 2200 



2J0O 

 3400 



DOWN. 



UP. 



