j4 



Tdrns ,> ' Cor. 



Bottotn 



.■■> ' y - 



f^^^ f Cor. 



Air Surface Drift 



Trawl or dredgo 



SOUNDING WIRE. 



VP. 



TtmN«. 



7W 



fl<XJ 



I too 



Uoi> 

 IStX> 

 1600 



a40" 



DREDGE ROPE. 



r>owN. 



