o/ to ?t " 

 t'i~-u fj ft 7K 



Vu in* Cor. -f 



,S f /io/ or lead 



Depth 



Bottom 



HvtUnu. h tnp, T'tturt 

 Xu. of t it a 1 /win ' far 

 Corrected temperature 

 Air Supfaoe 

 XcawL*** dredge 6^^^ — 



Cor. 



Drift 



SOUNDING WIRE. 



DOWN, 



DREDGE ROPE. 



400 



500 



71 JO 



800 



<)'»> 



Tonn 



I IOO 



lioo 



1700 

 1 >'< <> 

 jyuo 



VP 



1 f.TI 



