Uor. -r 



fyc-tri_rjL* c Machine. Itr.e 

 Mrns ftijj Car. + Depth ~ £ 



S'hol. or lead 



iUiilom li- in pt rt tin re J 



. Y'o. of Ha r)ti><nneter #3^4 7- Cor. ~t 

 Corrected benvpetabwre 3 S~' O 

 Air JTC Surface t£p Drift 



Trawl or dredge 



SOUNDING WIRE. 



DOWN. 



UF. 



S3** 



90* to 



6m; 

 'S " 



//■Op 

 /a-f/ 



6 



7-0./O 



1 urn?;. 



IOO 



300 

 400 



700 



800 



t>0O 

 IOOO 



1 v *> 

 urx> 

 1 '..»> 

 tOvo 

 1700 

 1800 



f(J4K> 

 70OO 

 2IOO 

 22O0 

 23O0 

 2400 



DREDGE ROPE 



DOWN. 



• 



•v. 



•3 

 3 



UP. 



