Cor, + 



Tut?i4 



f^Mti or Ua>d 



JioUom. l^iNipnraUitv. 



of t/trurjnornaUr 

 Oorrccitid t4>mp^ratiire 

 Mr tHurfac^ 

 J'rawl or dredge 



SOUNDING WIRE. 



vr. 



ItfKNS. 



400 



(mm I 

 7^ 



gOO 

 %ooo 



tlQO 

 •'JtOO 



IMO 



1600 

 1709 



utuu 

 74no 



Oor. 



DREDGE ROPE 



