Machine. Keel. 

 Turns Cor.+ Depth 



s%ot or toad 



Bottom \ y S ^W/ny 

 ihiltuni tn>}perahu<< 

 No. of tfuwnofnetcr 

 Corrected temper* tin re 



Aii- 

 'frawl or dredge 



Surface 



Drift 



SOUNDING WIRE. 



IK 



Tl JENS, 



I 0 



Jjioo 



200 



.|Hh 



: 



000 

 700 

 S« M.I 



000 

 1000 

 1100 

 1200 



moo 



1400 

 1500 

 1000 

 1700 

 1800 

 1000 

 2000 

 2100 

 2200 

 2300 

 2400 



DREDGE 1UJPE. 



