The National Geographic Magazine, Volume 111National Geographic Society, 1957 - Geography Indexes kept up to date with supplements. |
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Page 130
... keep the ship in the middle of the channel ( page 129 ) . In view of all these currents , this is more difficult than it looks at first sight . When the ship is on a true course in the center of a straight channel , pressures are equal ...
... keep the ship in the middle of the channel ( page 129 ) . In view of all these currents , this is more difficult than it looks at first sight . When the ship is on a true course in the center of a straight channel , pressures are equal ...
Page 140
... keep growing in size . New bypasses are needed - like rail- road sidings - to avoid congestion as traffic continues to mount in the course of normal events . These long - range improvements , as well as maintenance matters , are the ...
... keep growing in size . New bypasses are needed - like rail- road sidings - to avoid congestion as traffic continues to mount in the course of normal events . These long - range improvements , as well as maintenance matters , are the ...
Page 167
... keep an eye cocked on this house : glue holds it together . New synthetic - resin adhesives , set by high - frequency electricity , make prefabricated joints that are even stronger than the wood itself . In one corner of the lab playful ...
... keep an eye cocked on this house : glue holds it together . New synthetic - resin adhesives , set by high - frequency electricity , make prefabricated joints that are even stronger than the wood itself . In one corner of the lab playful ...
Contents
Page | xli |
Viking settlers | xlvii |
Shuqra Aden Protectorate | 211 |
Copyright | |
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