Depth Jd/'-'lSl 



Machine fat! 



Tur/ut — ~~ Got. -t 



;<hni 4>r I i (i<l 



HoUom. Umpflrature j 

 . Y(K of Ihci m.uinclrr 

 Corrected UmpwatunJ 



Air /%> Surfao* f £ Drift 

 Trawl or dredge 



(0, 



SOUNDING WIRE, 



IfX) 



VUtl 



300 



400 



$00 



r** 

 700 

 too 



lot*> 



I t • *■!» 



l Aoa 



170O 



, t*4 ... . 



SOW 

 vtno 

 MM 



2.JO< I 



DREDGE ROPE 



OP. 



IX) WN. 



t 671 



