Qig*£cc- Machine. Reel, jrffe, / fi*+y . 

 Turns ^f-4&r^\ ^ jpfrjfo // ^ 



■ Xlwt- or lead ^ Cfi 

 Bottom, /.r/C.* '"Ay. 

 Jf of torn temperature 

 JVfl, of thermometer \ 

 Corrected ieirbptrati&re 

 Jtir Hicrfaac 

 Trawl d wtdge *S? y >- t 0* 



_ Cor. 



SOUNDING WIRE, 



DOWN, 



^ 



? 7 



UP, 



> 7 



~7 r 



>7* \ 



tjt£.: y 



4J 



^ VI 



S-&71 



TURNH. 



'to 

 20O 



300 



400 



500 



600 



700 



Boo 

 900 

 1000 

 ' 1 1 00 



J200 



J 3 00 

 1400 

 1500 



1 600 



1700 

 1 Boo 

 IOOO 



itiog 



2300 

 2400 



7^ 



. DREDGE ROPE. 



DOWN, 



2r ■ 



,2 * 1*7 



if 



UJ-. 



1- 



A 2? 



3, 



7^ 



c 



7 



