tot 



jP+y- Machine, Heel, 



Turn.- i *6t- Cor. + 



Depth 0*^y&W, 



sr. 



Bottom 



Bottom* temperature 

 ./Yb. of titer nxrmrtrr 

 Cor reeled U uip>> m 1 1 1. r/> 

 Mr Surface 4&f 



Trawl or dredge 



Cor. — 



Drift 



t SOUND! I 



SOUNDING WIRE. 



Ul\ 



0/ .y 



% 671 



TURNS. 



•joq 



,V*i 



'in I 



70O 



gOO 

 <•*■ 1 



t too 

 f.n.i 



IJOO 

 lilt* J 

 1^00 

 tf'rt.JO 

 1 ;« » 1 



ttjpQ 

 20U> 

 2I0O 

 2200 

 v.v>, 

 2400 



DREDGE ROPE. 



5. 



UOWN. 



1 



S 



