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Weight | 2 lbs |
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National Geographic Back Issues
Magazines, Books, Maps & More
$99.95
The Tetrahedral Principle in Kite Structure
Alexander Graham Bell explains the geometry behind the strength, lightness, and steady flight of these efficient kites.
The Ziegler Polar Expedition { Mr. Ziegler and the National Geographic Society}
Geographic Notes includes information on the Board of Managers’ meeting and surveys of territory in Alaska, among other topics.
Out of stock
Weight | 2 lbs |
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$99.95
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