>- i'k/ ^ I >^ V M(wlUfho: 

 Tuvnn (^^ O^r. ' 

 iikOiza' lead ^ ^i" /a .; 

 Bottom jijc, : r ' // 

 Bottom iemperaiurr 

 Jfu. of Thenttofiwlrr 

 CorrecUnl temper at tirt^ ^ 



M/i 



Tmwl or dredj^fc or la n^trK 



SOUNDING WIRE. 



"{tX> 



Jt*. 



600 



800 

 rooo 



» J' .J 

 1400 

 iSoo 

 l6uo 

 1700 

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300U 

 UlOU 



7.100 



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DREDGE ROPE. 



l'"\VN. 



PI'. 



