W7. 



I'firn.-. Cor. + 



>'/ /// or lend 

 lioHoni 



lUt\li>t» Irtuju ntt-tire 

 J\Tth of thermometer 

 Correct al lempcrat tire 

 stir Smftuui 

 Traivl or dredgfl 



Drift 



SOUNDING WIRE 



Till::;.. 



300 

 5«JO 

 iW 

 JOO 

 !.»• 



boo 



1000 

 uoo 



l V JO 

 l£QQ 

 H»>u 

 I SQQ 

 ii... 

 1700 

 t8oo 

 oyx> 



00 on 



JlOO 



DREDGE ROPE. 



