0<k 



Tarnx Cor.'r 

 Shot or lead 

 Bottom 



ih plh 



Botttm i tenvpcrattwe 



3fo* of th ermometer Cor. 



Cn rrfxitfid tnmperfttare 



Air Surface Drift 



Trawl or dredge /^v^ ^ t / JL /f* /[TJF 



TUHKH. 



7^ 



intiax-:!-: k< mm-: 



DOWN 



UP, 



1 1 



