JVb. 



• Machine JCe/lL Vo<t4j< * ^ 



tJL fey cor.+ Depth ; : V 



M>. of tiusniwm*Ur <e Cor. 

 ('JorrruM, tetnjw ra lure 



Air frirfaoe Drift 



Trawl or drtdge. 



SOUNDING WIRE, 



DOWHi 



5 un 



to 4? 



TIIICNR. 



0 

 IPO 

 voo 

 300 

 AM 



(tOCi 



70 > 

 800 



t y m 

 i.uw 

 i-.'i 



I II , 



Uf** 



;'rxn 

 -ton 



.'j'>' 



DRE.DGb ROPt. 



DOWN. 



