EecL 



m, / ''0 Dale 



BfMoi}v tGDipG rdtitre J JL * 

 J^o, of tlhCiinfiumter /&^/4~\5 



Air ■ Bwrfave 

 Tj^aivl or dredge ^ ^ ^S-i^ 



Depth •Sff yCi^L 



DHft 



SOUKDINQ WIRE, 



//■ or 



IT, 



TURN'S. 



0 



mi 



m 



800 

 700 



m 



iriiN) 

 llOU 



im 



Vim 



X-im 

 1000 



imu 

 iw 



at 00 

 saoo 



20OO 

 2400 



DREDGE ROPE. 



- f d 



