M DEPTH OF 600 FATHOMS = 39*0 
Oceanic Circulation. Map 8. 
EXPLANATION OF COLOURING 
6000 Feet 
Contours showing 
Height of land. 
lOO Fathoms 
Depth, of Si 
iooo 
B artiiolomevr, Edin T 
sIlowel thus 
Isothermals below Jiverage shown, irv£lue thus 
