



No* J &aU; 





Machine, 



Heel. 



Turns Cor. + 



Dao&l f£/*\ 



SJwt or lead 



Bottom / J f '■ ■■ t 





Battfmu temperature ^* , f 

 No. of thermometer 

 Corrected temperature S *) . f 



Xtcrface . & 



Air 



Cor. ~ %- 

 Drift 



SOUNDING WIRE, 





DREDGE ROPE. 



DOWN. 



U W 



TURNS. 



DOWN. 





Jr' ^ l> i c 





O 



/ 



7—7 



r v 







IOO 









J/7 V fa 





















400 







J 





500 





















700 











BOO 











900 











IOOO 











I IOO 





















1300 











1 400 











1500 











1600 , 











1700 











1B00 











1900 





















2100 











2200 











2300 







■-471 





■2400 







