The National Geographic Magazine, Volume 106National Geographic Society, 1954 - Geography Indexes kept up to date with supplements. |
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Page 57
... give it buoyancy aloft , so the bathy- scaphe uses lighter - than - water gasoline to give it buoyancy below the surface . Why doesn't the pressure of the depth crush this fragile hull ? Because sea water is free to enter the hull ...
... give it buoyancy aloft , so the bathy- scaphe uses lighter - than - water gasoline to give it buoyancy below the surface . Why doesn't the pressure of the depth crush this fragile hull ? Because sea water is free to enter the hull ...
Page 428
... give him an approved education in your own home with the famous Calvert " School - at - Home " Courses . Lessons , books , supplies pro- vided . Complete , easy - to - follow instructions . Guidance by Calvert teachers . No experience ...
... give him an approved education in your own home with the famous Calvert " School - at - Home " Courses . Lessons , books , supplies pro- vided . Complete , easy - to - follow instructions . Guidance by Calvert teachers . No experience ...
Page 718
... gives facts . WRITE TODAY ! LINGUAPHONE INSTITUTE 255-11 RCA Building New York 20 , N. Y. Don't climb stairs- STAIR ... Give ' em the complete toothbrush kit for brushing teeth after every meal wherever they are ! Full- size folding ...
... gives facts . WRITE TODAY ! LINGUAPHONE INSTITUTE 255-11 RCA Building New York 20 , N. Y. Don't climb stairs- STAIR ... Give ' em the complete toothbrush kit for brushing teeth after every meal wherever they are ! Full- size folding ...
Contents
President Eisenhower Presents 64 | 57 |
To the Depths of the Sea by Bathyscaphe 67 | 57 |
Two and a Half Miles Down 80 | 57 |
Copyright | |
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