JJnvhitu\ 



Tbntit } l f Cor. / f 



Bottom £ y ( .{^ 



Bottom temperature */ J •- 

 JVV/. of Thermometer f G ) 

 Corrected temperature j/^ t fi 

 4tT J^J Surface \ 

 Trawl or dredge or tangles 



SOUNDING WIRE. 



Reel, a — •/ ' 

 Depth > % /[ 



to 



lM.wri. 



J - ) 



j loo 



Drifl, 



DREDGE ROPE. 



300 

 500 



f« h 1 

 70O 



tk*J 



900 



1 • " " 1 

 1 1 1 11 1 

 1200 

 1300 

 1400 

 1 500 

 l660 

 1700 

 1K00 



KjfXJ 



aioo 



33tX) 



3400 



