.v,, t& nut, 



Machine, Rood 



Drftlh H ' ■ A ' s 



Turns Cor. i 



iihut rrr laad \: 

 i;»tl„m $Jt</ t * J, 



ttotttmi Ictn/icroAtf c ^ 7 , ' 



JV'o. of Thermometer 



Corn et, d /> tn/n ntlurc - 

 Jir « " Surface 



SOUNDING WIRE. 



DOWN. 



0», 



HI.Ns. 



/>/•///. 



DREDGE ROPE. 



rr. 



r» 



I rx> 



_>r n j 

 30O 

 )i «< 

 500 

 f.i »t 



7"" 

 80O 

 ywj 

 1 1 1/ 11 1 

 I loo 

 I20u 

 J,|oo 



1500 



I7(K) 



I hex) 



Kj'X) 



2CXV) 



21m 



2200 



- i"" 

 3400 



