5^ 



^ wy^o-^^ --^w. v^^*^^,^ 



Mfjtt/tm /\i ^ £^ 



4^0. of thADruu}m*^t4<r 

 Corrected tr.mipt:ralit,r&^ 

 Air -^/^ Surf am 



Cor. 



SOUNDING WIRE. 



DOWN. 



UP. 



1^1 



KM 



VOID 



4K0 

 i«9 



6CNI 



700 



900 

 1000 



rioo 



1000 



1300 



lOoo 



1700 



2S(JO 



9400 



DREDGE ROPt, 



