Rt»i. 1 - i' o^if "a. 



V*4dJb Machine. 

 Thru* ll~ Cor, + 



V. 



Depth 



Bottom 



Bottom, temperature 3 % ^ J 

 ./Vb. ©/ thermometer 



(,'orrrctrd trtti /» nifun 



Surface 



Air ^6, 

 Trawl or dredge 



Cor. i OW 



Jfri/'t 



SOUNDING WIRE. 



■Down, 



I to 



UP. 



of. /y 



I 



J] We < 



i DfcNR, 



0 

 TOO 

 200 

 30O 



j|Qg 



S<» 

 600 

 700 

 800 

 000 

 1000 

 1100 



!*.•<» 



/> 7 W 



r^gg 

 1800 



3IOO 

 B2O0 

 2300 



DREOGE ROPE 



JJOWTf, 



1 



UP. 



4 



a mi 



