Physical Geography of the Great Oceans 101 



DIAGRAMS C and D. Both these diagrams are oriented 



along the same meridian, 180 \Y. 



Diagram C shows the rate and direction of travel of the surface water. 

 les per day. Diagram D shows, by means of lines of equal true density, 

 :egree of statical balance which exists in the water lying between the 

 surface and a depth of 200 fathoms. 



