.A 



Machine; Reel. 

 1&rnM tefti Cor.+ i$ 



Sliot or Irad 

 Bottom 



No. of Uicnnometer 

 Corrected Lem/M/ifurr .O 

 Mr £g Surface 

 Trawl or dredgti 



SOUNDING WIRE. 



a*. poww - 



i.i-. 



I 



6> >6 



TURNS. 



0 



100 

 .1 * } 



300 



400 



\ 



QOO 

 7f» 

 8<X» 

 •300 

 [,..-, 

 •I 4 m * 



iyx> 



IGOO 



Hop 



rooci 



'.'1UO 



2400 



Depth \&ftJlqaMl 



Cor.-O 



Drift 



DREDGE ROPE. 



UOVVN. 



« Ml 



