The National Geographic Magazine, Volume 100National Geographic Society, 1951 - Geography Indexes kept up to date with supplements. |
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Page 13
... Bureau of Standards . Electric light tests : Bureau of Standards . Electrical unit measurements : East Building , Bureau of Standards . Electricity . Weighing : Bureau of Standards . 778 758-759 Electrons , " Weighing " : Bureau of ...
... Bureau of Standards . Electric light tests : Bureau of Standards . Electrical unit measurements : East Building , Bureau of Standards . Electricity . Weighing : Bureau of Standards . 778 758-759 Electrons , " Weighing " : Bureau of ...
Page 4
... Bureau of Standards . Radio weather . Forecasting : Bureau of Standards . .771-772 Radioactivity , Tests for : Bureau of Standards ... 760 ; 135 771 col . pl . , 780 Projection Albers Conical Equal - Area : The Society's car- tographers ...
... Bureau of Standards . Radio weather . Forecasting : Bureau of Standards . .771-772 Radioactivity , Tests for : Bureau of Standards ... 760 ; 135 771 col . pl . , 780 Projection Albers Conical Equal - Area : The Society's car- tographers ...
Page 776
... Bureau paper experts have learned to make currency paper many times as strong as it once was . Sample bills must survive being folded and unfolded thousands of times in a testing machine . Even so , a dollar bill's average life is only ...
... Bureau paper experts have learned to make currency paper many times as strong as it once was . Sample bills must survive being folded and unfolded thousands of times in a testing machine . Even so , a dollar bill's average life is only ...
Contents
Around the World in Eighty Days By Newman Bumstead With 34 illustrations | 9 |
Colorados Friendly Topland Rocky Mountains By Robert M Ormes With 19 illus | 9 |
The Ghosts of Jericho Jordan By James L Kelso 825 | 19 |
Copyright | |
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