. ma 



* , « li i * 



Machine. JUrl. 

 iur f us//fj~Cor. + (fj^ Depth 



huthjrn, jcJ 

 Bottom- f/itCfierut u rr 



.Yo.of tlwrowmtter Cor. 

 Corrrrted fr n i./jr rai wre 



Air Snr/arr Drift 



Tnuvl or drctl£<: 



SOUNDING WIRE. 



• | • DOWN. 













a 4. ro 





f % & 



- 









(6. *Lo 

 / 



























• in 



l«JO 



«,4KJ 



Goo 



A» JO 



tjOO 

 t 1(X» 



■■V v 



i gap 



I.UKl 

 I '<•*} 



lOoo 

 i ,<*j 

 t8co 

 t</oo 



| I • X 4 



DREDGE ROPE. 



DOWN. 



UP. 



