Date 



Turns 



Machine. 

 Cot\ 



/ Depth 



. V o. vf Ut'CrntiOitieUr 

 tu 



Surf'a43& 



Trawl or dredge 



SOUNDING WIRE. 



yy*^ DOWN. 



!75v 



ICO 



300 

 400 

 500 



700 



Soo 



OCX) 



1100 



1300 



|.inn 

 1500 

 |(K» 

 I7U0 



«too 

 aaoo 

 »>oo 



Cor. 



DREDGE ROPE, 



OOWK 



f-«7J 



