The National Geographic Magazine, Volume 101National Geographic Society, 1952 - Geography Indexes kept up to date with supplements. |
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Page 117
Our Home - town Planet , Earth Examining the Iron - hearted Globe , Science Gains New Knowledge of Earthquakes , Volcanoes , and Earth's Birth and Future By F. BARROWS COLTON S EEN from as far away as Mars , our spurred on not only by ...
Our Home - town Planet , Earth Examining the Iron - hearted Globe , Science Gains New Knowledge of Earthquakes , Volcanoes , and Earth's Birth and Future By F. BARROWS COLTON S EEN from as far away as Mars , our spurred on not only by ...
Page 120
Certain of these objects , some scientists be lieve , may be all that is left of another planet that burst , or was otherwise destroyed , long , long ago Like Earth , this planet is thought to have had an iron core .
Certain of these objects , some scientists be lieve , may be all that is left of another planet that burst , or was otherwise destroyed , long , long ago Like Earth , this planet is thought to have had an iron core .
Page 126
What would be found if a tunnel magma cooled , the metal - bearing minerals could be bored through the earth , or if ... years ago many replace what man is using . people believed the earth was hollow , contain- Boring beneath Earth's ...
What would be found if a tunnel magma cooled , the metal - bearing minerals could be bored through the earth , or if ... years ago many replace what man is using . people believed the earth was hollow , contain- Boring beneath Earth's ...
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