6fJ. 



.Y4>. OtUo 



TfwrM Cor. t 



Shot or lead 

 IJoUom 



Hoitom' temperature 

 .Yo. of Th^nncnu'tcr 

 Corrected' iempertiUbre 

 Air Siurfaca 

 Trawl or dredge, or iatifil^^ 



SOU NDING WIRE. 

 UOWN. M'. 



5f..i 



70... 

 hoc 



1 < >l.MJ 



I \l Ml 

 I J.J.J 



1 5< 



I '>t>0 



I htjtj 



iUptk 



Cor. 



Drift. 



DREDGE ROPE. 



I'P. 



