.MtH'lt I III . 



Tunis t 'or. \ 



SI ml or hint 

 Hollo m. 



Hollo) ii frm f ii s l ilt m i 

 ,\'o. of Tlicrwoiiu li r 

 f 'orrrrfril frtii./irr/i.fn rr 

 • III- Sltrjurr 

 Tniirl or <lrc<l<Jr or fourth's 



SOUNDING WIRE. 



l>o\Y*. ||fl 



Ih rl. 



Depth 



V*' 

 y, k> 



i>i 10 



1000 



I ftOO 



I <<" 



1400 



<$"" 

 .»-„, 

 »•/..„ 



[goo 



' I 



a km* 



1 tan 



goo 



Ih-ifi 



DREDGE ROPE. 



WIS 



