No. 



Machine. 

 ( hr. ■ 



Beet. 



Shof ftr ?<><<(} 



Bottom 



Bottom* temperaiwn 

 Jfo. of thermometer 

 Connected tcirupenthu r 

 Air Surface 



Depth 



for, 



Drift 



Tr&wl or dredge- r^h^^-i *-r u^mJEC* * / f^^^ A\ 



SOUNDING WIRE. 



noivx. 



11 



2kL 



- ui». 



DREDOB ROPE. 



THINS. 



IMrtVN, 



i 5j 







0 



100 

 200 

 800 

 400 

 600 

 GOO 

 700 

 800 

 000 

 1000 

 1100 

 1300 



i 



1800 

 1400 

 1300 

 1000 

 1700 

 I SI 10 



ifob 



£100 

 3S00 

 S 



-mi, 



4 



