THE LAST EXPEDITION OF CIIAIILES FRANCIS HALL. 779 



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EASTERN HEMISPHERE. 



[In the Eastern Hemisphere, the Polar World includes the space between the Pole 

 and latitude 60° North, and between the Pole and latitude 40° South. The Tem- 

 perate Zones are between latitude 60^ and 30° North, and 60° and 30o South. The 

 Tropical Zones in both hemispheres lie on each side of the Equator between latitude 

 30° North, and 30° South.] 



