OCEANOGRAPHICAL CONDITIONS OF THE SEA IN THE PACIFIC OCEAN 791 



ILLUSTRATIONS 



Fig. 1. — Map showing "C-line" and the fixed points '"Extra" and "Tang-o." 



Fig. 2. — Variation in water temperature at different depths. 



Fig. 3. — The variation of the water temperature obtained by taking twelve- 

 month moving average. 



Fig. 4. — Variation in chlorinity at different depths. 



Fig. 5. — Relation between transparency and plankton volume. The curve 

 represents 'D-21.hV-'>-~^. 



