vj 0 



Heat, 



Machine* 

 Tar lit; <>>r. H 



Bottom * ^ 



Bottom tnn prra! in r 



No. of Tin rtnotn' f> r 

 ( 'art t't h ft IrithfH i tttu > <• 



Mr > J - Surface tfjf JJrifk. 

 Trair/ nr dredge or tangles 



ff 



SOUNDING WIRE 



THUNK. 





lioWN. 



ii 











(OO 









.•<X> 



8 







MO 







400 









mh 







— - - ■ 



fino 









700 





\ 



IT f 





Koo 

 g<0 



JOLKJ 



1 1 « -» 



1 \o > 



>< 







1 ; 



1 |'-> 









II 



1 ; " 



1 14 l< K t 



V 







-WMVJ 









J 1 1 II ) 









-M"" 





DREDGE HOPE. 



