lujvm tins . 
IsoOuuTnala 'bel/rw Average^ shown iji-Bbjue- thus. 
Oceajiic CjrculB.tioiL. Mfijj 3. 
120 130 140 130 leo 
AT DEPTH OF 100 PATH OM S = 6 0°- 7 
40 30 30 10 0 10 20 30 40 50 
EXPLANATION OF COLOURING 
Ooatours eihnvang 
Dopui of Sea 
6000 Jeet 
0000 
TiK V I’TT I 
LOO FgdiQms 
600 
lOOO 
