am. 



vale 



Oar, + 



ffiiot or lead 

 Bottom 



Bottom teithpuratare 

 M, of thermometer 

 Corrccfwl lempvraUttc 



Air Surfacr Drift 



Trawl fr dredge 



Cor. 



SOUNDING WIRE. 



DOWN, 



UP, 



1 Vfl 



0 

 IOO 

 200 



Jpp 

 Soo 



t.' K I 



700 

 800 



I0OU 

 I IOO 



i2og 

 1300 

 1400 

 1 Soo 

 tboo 

 1700 

 1 Boo 

 1900 



J Oo; J 

 i'JOO 



2200 

 2400 



DREDGE ROPE. 







? 



