Machine. JtetL 



Turns -/V Cor, 4 / 



jYo. i}f fhcrmom^ftsr ^^^^ \ 



Air ' Surface 

 Trawl or dredge 



SOUNDING WIRL. 



VW 

 300 

 JCO 



500 



700 



10(V> 



ir«x> 



IT" 



|ep9 



ao« - 



2400 



Cor, - 



DREDGE UOPt 



DOWN. 



