Subject ASC0000frr
    Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology.
    v. 4 (1831), Page 311 (1831)
    Natural History Museum Library, London
    
      BHL Page 2269716
    
    
Keywords
equinox Ural Mountains Mexico geology physical geography globe solstital colures kamtschatka magnetic magnetic pole 12 960 years latitude equinoxe poles pole equator geography