AT DEPTH OF 200 FATHOMS = 5 0°-1 
Oceanic CixcuLation. Map 4 
EXPLANATION OF COLOURING 
6000 Feet/ 
Contours showing 
Height of XanR 
Contours showing 
Depth, of Sea 
tooo 
50 * 
skawn thus 
Isothermals below .Average shown, in, JBlue thus 
£ arth.olomew, Edin? 
