ItoHom temperamre 



Correct od' iemptiraturc ^^*7' 

 c46r ( ' Surface / t i^rt/lft 



DOWN» 



SOUNDING WIRE. 



TURNS. 



J 



300 



5tx> 

 Ooo 

 700 ^ 



1000 

 IKVl 

 tvtxi 

 l3<xt 



1^00 

 1600 

 1700 



tgcx) 



30UU 

 ^JOU 



DREDGE ROPE. 



POWN. 



or. 



H ATI 



k 



