(fv 



fytT't <T trf Dot* 



Qf^tfLs Machine. IUc 

 Tttr/s [Jj-y Cor. i J- 

 MrrrtrorUnd J f tf? 

 Bottom £ /v 

 Bottom taftpt ratttn //; + r 

 No. of fouu'momvtcr r rf y £ q 

 Corrected (cm /nra tun ' f*£. 

 Air Surfim J*} 



Tititvt or drcd<Jt< or laughs 

 SOUNDING WIRE. 



Jh'/dtl 



dor. 



Drift. 



6 // W 



tun**. 



100 



200 



400 



Wo 



600 



700 



Soo 



•»uo 

 1 1 k i0 

 1 100 

 1 .'"i. 



I {!«• 

 I \\ H I 



I 5> M I 

 If" lO 



1 '/.HI 



iHuo 



J< " *J 



2 JOO 



2200 

 2300 

 2400 



DREDGE ROPE. 



DOWN. 



