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Our Surroundings 



miles it is north of the equator. The same method of measuring 

 is used south of the equator. 



F. E. Hewitt. 



TOTAL ECLIPSE OF THE SUN, JANUARY, 1925 



The large central figure shows the moon between sun and earth at the instant of 

 total eclipse. All the other figures show views taken at different times as the moon 

 passed in front of the sun. How long did it take the moon to pass completely across 



the sun? 



