Turn* 



flollom | 

 Bottom, temperature 3f< 7 

 jYtt. of t/trrtnorth-i. > 

 Corrected temper a litre 

 Air sr % Sterfa^e 

 Trawl or dredge 



orh'un' re/ Heel-. Jfy^ 



Depth 4££4L 



m 



I to 



Drift 



SOUNDING WIRE, 



DOWW. 



Xf$A 



XUi 



MM] 



MM 



J6./0 



TURNS. 



D 

 IQO 



300 



7f>3 



boo 



IQOG 



l too 

 »-••»> 



I V>> 



1600 



I70O 



vpo 



2000 

 220O 



MOO 



DREDGE ROPE. 



DOWN. 



UP. 



