A 



ft 



Machinn. h'rtl. 



Turns 



Sh ot » lead 



Bottom 7t'- M-'f 



Bottom tempenUurb i 

 *Yo. of thentwrnater 

 tJorrrctrd t*\ in/h-rat/tn: 

 Mr Surface ' 



Trawl or dredge 



SOUNDING WIRE. 



DOWN. 



DOV 



up. 



TURNS 



2 1 ' 



300 



500 

 (*yo 

 700 

 Boo 



iOOO 



1 kh.. 

 VKfC 

 I V 

 U0O 



K>00 

 t <»J 



HjOO 

 3O0O 

 JliX) 



auoo 



I hi ft 



DREDGE ROPE. 



up. 



DOWN, 



» m 



