Date 



Machine. t{, W. 



Viitiu; Cor, -f- 



Jloftoin ti in fin a tin, 

 jVo. ii f Uu i ni utin h r 

 Corrrfiifld ieiit funttuir 



Air SwfacCr 

 Trawl nr rfrr.dge. 



Lhpth 



SOUNDING WIRE. 



how.-. 



up. 



TURNS. 



o 

 «Q0 



400 



500 

 



Bg 

 too 

 90a 

 1000 

 11.-. 



1900 



I •>.*> 

 1400 

 1500 

 i6w 

 1700 

 iHno 



JtjOO 



51 IW 



.3.., 



MP 



Cor. 

 J>rijl 



DREDGE ROPf 



l»OWN. 



ur, 



