■Al| AT DEPTH OF 800 FATHOMS = 37-3 
Oceajiic CixciiLatioii. 10. 
EXPLANATION OF COLOURING 
,0000 Feet 
Ccmtours sliowinf 
Deptli a£ Sea 
1000 
1500 
[S,(Tialli 
3T stown tlius 
h*:Jow JLverage alutvm. in Bine thu^ 
3 
