10 



M or 



i^.JVo. Date fl/ 



^ , Machine. I ii^. ^j' 



Jiottcm temperature 



Jfo. of Umrnwinttcr H^T- J Cor, » ^ 



Correciec^ temperature 

 Air j Sitrfam 

 Trawl* or dredj(c 



11 



4 



Drift 



JSOUNOING WIRE. 



DOWN. 



o 



Ik 

 n 



/, ^ (To 0 



TURNS. 

 () 



tluo 

 »r.no 

 igoo 



DREDGE ROPE. 



IIOWN. 



