.Vo. 



BoUoith iempfiratiire 

 .Yu. of fJmrrfwmeler 



/ 



Corrected tomp^atnire 

 Air ^ StirfoMn 

 Trawl or dredge^ 



SOUNDI NG WIRE. 



- - -0 



TURNli. 



'JOO 



600 



700 



boo 



f)Ot> 

 l'"*¥J 

 I 1 1 in 



1 



i6uu 

 l7tX) 

 I60O 



2100 

 2300 

 S3OO 

 24»O0 



Cor. 



DREDGE ROPE. 



in* 



DOWK 



a 671 



