Machine. lteaL 



~&FT+ ^ Depth /'/ ^ 



Titriu; 



£h«t~<yr lead ^ 

 Bottom 



Hot torn tern pa ra i n r. 

 . Yo, of thermometer ^ 

 Corrcoted^emperaturc I 

 Air / £ SiirfiLc ? £ Drift 

 Trawl or dredge 



SOUNDING WIRE. 



7 J^>T>CWN. 



m;vs. 



1(30 



500 

 300 

 4O0 



500 



I H • I 



Rao 



1000 

 uoo 

 l.'ou 



I KM 



» ... 



I70f> 



IgM 

 ;<yp) 

 5HO0 



.•.ll>> 

 3.400 



DREDGE ROPt 



DOWN. 



1 bti 



