SOUNDING WIH Bi 



PMH. 



DREDGING CABLE. 



M. Down. 



Up. _M. 



Down, 





ft 













N It ! 



// 





0 13 

 •> tt 

 Iff 



/ft 



v r 





// 



/ v 









jj 100 ! 



j? 

 /<> 

















200 























iHK) 



























400 



























500 



























• inn 



























700 | 

 800 



























noo 



























1000 



























1100 



























1200 



























1300 



























1 



























lfiOO 



























1000 



























1700 





















































limn 



























eooo 



























2100 



























3200 



























■:::iim 



























S400 



























BflOO 



























-000 



























3701) 



























MHOO 



























imioo 

 ;iooo 



























moo 

 :i200 



























umi 



























nm 

 mo 

 :moo 



























;i7oo 



























mo 



























8fiM 



























■1000 



























- 1 





1 3 ^ 























1200 



























<iaoo 



























4400 



























•tfoo 



























-1IHHI 



























4701) 



























IS0U 



























| 4000 















