The National Geographic Magazine, Volume 24National Geographic Society, 1913 - Geography Indexes kept up to date with supplements. |
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Page 143
... material thrown out in ear- lier eruptions and terminates above in the opening known as the crater . When the volcano is not in eruption this vent is closed by material fallen in from above and by material which was not fully ex- pelled ...
... material thrown out in ear- lier eruptions and terminates above in the opening known as the crater . When the volcano is not in eruption this vent is closed by material fallen in from above and by material which was not fully ex- pelled ...
Page 165
... material ejected ( see also pages 166 , 167 ) . THE GREATEST KNOWN ERUPTION The eruption of Tomboro , on the island of Sumbawa , east of Java , in 1815 , if the published reports are to be credited , appears to have exceeded all other ...
... material ejected ( see also pages 166 , 167 ) . THE GREATEST KNOWN ERUPTION The eruption of Tomboro , on the island of Sumbawa , east of Java , in 1815 , if the published reports are to be credited , appears to have exceeded all other ...
Page 166
... material of the grain of fine sand , which fell 70 to 100 miles away . The middle or brown material near the base of the mountain consists of several layers , which differ from the lower bed in con- taining a smaller proportion of ...
... material of the grain of fine sand , which fell 70 to 100 miles away . The middle or brown material near the base of the mountain consists of several layers , which differ from the lower bed in con- taining a smaller proportion of ...
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agricultural Alaska American ancient Baalbek beautiful beetles birds breeding building built buoys Canada cancer cells cent Cetinje coast Cold Bay Copyright by National creature Cuzco dark David Fairchild ducks economic status eruption excavation expedition exploration feet Glacier grasshoppers ground Habits and economic Hiram Bingham houses Inca inches Indians insects Island June Katmai keepers Kodiak Krakatoa Lake land light vessel lighthouse Machu Picchu ment miles Montenegrin Mount Katmai mountain NATIONAL GEOGRAPHIC MAGAZINE National Geographic Society native nest oyster pass peak Peru Peruvian Photo by David Photo by Ethan Photo by George Photo by Hiram picture plant Quirigua region river road rock ruins seen showing side South southern species stairway stations stone temple terraces tion tower trail trees tumor-strand Turks United Urga Urubamba Urubamba River valley volcano wall Washington winter young