"J? 



Jfo.Dt* tfC/t Date 



Machine, Reel. 

 Turns Cor. + Depth 



SJbol or lead 

 Bottom, 4 ^ 

 Bnttoin temperature 

 No. of thrrmo/neter 



Cffrrccted ieirbpttrahure 



erf ace y ^ 



Air 



Trawl or drvdge 



(far. 



Drift 



SOUNDING WIRE. 



DOWN. 



UP. 



4* 



4 r-rt^Jftljs*^ 



: ■■■■ 



TUKNS, 



10O 

 BOO 



3uo 

 400 

 5<» 



» -DTI 



too 



900 



IOOO 



1 100 



ISOO 

 1300 

 I4CK> 



I [/JO 



1 600 



1700 



i3oo 

 1900 

 2000 

 2100 

 2200 

 2300 

 240O 



DREDGE ROPE. 



■03 '-Jo 



72/ =J 



5 t> $ ~3*> 



7-23- 



