Vdrna ^ Cor* -f / 

 OP lead ^"^r^S^^ 



floU/om 

 Jiottom ii^mperatiui 

 V 'o. of thermorrbttter ^^^7/ 

 Corrected Ump^cUure %T ^» ^ 



Air 

 / 



Trawl or dredge 



Surface 



SOUNDING WIRE. 



DO WW. 



0 



^7/ 



300 



6cx) 

 700 



800 



I to» 

 l»t)o 



Uoo 



iy» 



ifiCTi 



I'/ 



DREDGE ROPE. 



oovnt. 



UP. 



