6G7. 



.Yo. 



DM 



*£ <±<?< i Machine. Reel. 

 Turns *?0 O Cor. * fo Depth c 



Sh#i. or lead ' 



L.J! 



Cor. 



Bottom, 0^- 



Holt nut U Ulfn I ttinn- 



jYo. of Thermometer 



Corrected temperature * / * ' g <JF*<Jp & 



Mr 7 %3 Surface fap Drift. 



Trawl or dredge or tangles 



SOUNDING WIHE. 



WVitt, 



VP, 



TOMS, 



o 



too 



200 



<JOO 

 1 I II II J 

 1 IOO 



IJIJ.I 



I 41 N , 



1 1" '• I 



1500 



u 



1700 

 1800 



3JUU 



DREDGE ROPE, 



l. u\VN. 



