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1916] on The Movements of the Earth's Pole 



683 



Fig. 1. 

 Track of polar movement, 1900-1903. 



Fig. 2. 



Same track referred to axis rotating in tl 

 earth with a 14 month period. , 



Fig. 3. 

 Hodograph of Fig. 2. 



Fig. 4. 



Hodograph referred back to axes fixed \ 

 the earth, or Torque Diagram. I 



