Bottom' i^.7rLpf!rtUure ^7' / 

 ^o, of tiiemwmeter 

 Corrt^tsd tetrhp^ratRt^re 

 Air /^*^ Snrf<m ^ 

 Trawl or drcdgti 



Chr, 



DHft 



SOUNDING WIRE. 



DOWN. 



UP. 



') 



fW 

 10O 



Coo 

 TOO 

 boo 



1IX>J 



1 1' tj 



I MA) 

 IjrM 



15W 



I'/JKJ 



••If JO 



i'iOLi 



2400 



DREDGE ROPE. 



OOWM. 



