1^' 



i^tft^r lead > /* _ 



JBoUom sfjT.L?- — 



^tt. d/ ThermutHAiter 

 Air 



Cor. - 



SurfaiUt -/ 



Ttn.wl rrr-drrrlffir or tn.ngttMh -^f ' - 



SOUNDING WIRE. 



tKtWS. 



'4 



o 



lOtJ 



.J CM) 



5<.xi 



700 



.Soo 

 900 



l(>00 

 I loo 

 J iHMj 



I 



1 S'*^ 

 i t II "J 

 1700 



J .H> 



I «;tX) 



.'I X 

 .'IK* 

 -•/tXJ 

 H>tl 



^400 



DREDGE ROPE. 



■■^c 



