jfo. i . //foot* -^y. 



Machine Jit el. 

 Turns /(ffi) 0 Cor. -I- /^<jT~" lJi 'l ,th 1 7 ^^D'TU 

 Shut orUrmt- 

 Bottom 



Jkiltom tempi rat arc < » ' 



^W;, 0/ thermometer j^^T^^P Cor. 



Corrected tern pHntturc 



Mr ^/ Sarfacc Drift 

 Trawl or dredge 



DING WIRE 



UP. 



EH 



if 



Wf&L 



tfot) 



0], 10, 



t Qloo 



0 



turns* 



'4 .,1 



o 



JOO 

 200 



300 

 40c J 



500 



U* 1 



700 



Boo 

 000 

 1000 

 1 100 

 12011 

 1300 

 1400 

 1500 

 1600 



1800 

 i^oo 

 2000 



moo 



J2O0 

 2300 

 240O 



DREDGE ROPE. 



DOWN. 



