Tunis Cor. + Depth 



."•>'///>/ Of lead 

 Bottom. m 

 Hoi loin InviprifUii re 



. \ n. Ihmnorm h r Cor. 

 Corrected lem poratttrc 



Air 5"S^ Surface ^ */* Drift 

 Tnuvl or dredge 



SOUNDING WIRE. 



DOWN. 



UP. 



I lilts', . 



2O0 

 3l» 

 /}"" 



1.1 n 1 



700 

 800 



• mo 



I V' 



1.1^ 1 



- B 



«nnO 

 •Jino 

 a 300 

 -.)'-*-> 

 ^00 



DREDGE ROPE 



DOWN. 



UP. 



» 571 



