The National Geographic Magazine, Volume 105National Geographic Society, 1954 - Geography Indexes kept up to date with supplements. |
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Page 83
... plants , it has been found , use phos- phorus from fertilizers in the first stages of growth , but later draw most ... plants grow in controlled air containing carbon dioxide tagged with radioactive carbon . " Plants in the ...
... plants , it has been found , use phos- phorus from fertilizers in the first stages of growth , but later draw most ... plants grow in controlled air containing carbon dioxide tagged with radioactive carbon . " Plants in the ...
Page 84
... plants ' the plants absorbed radiocarbon . Man's New Servant , the Friendly Atom Such knowledge makes. 84 had no way of knowing how much digitoxin was actually used by the body and how much was unused and excreted . with the aid of ...
... plants ' the plants absorbed radiocarbon . Man's New Servant , the Friendly Atom Such knowledge makes. 84 had no way of knowing how much digitoxin was actually used by the body and how much was unused and excreted . with the aid of ...
Page 427
... plants . The porridge had consisted chiefly of bar- ley , linseed , gold - of - pleasure , and persicaria -all cultivated plants . But it contained also 430 a considerable number of wild plants , such as.
... plants . The porridge had consisted chiefly of bar- ley , linseed , gold - of - pleasure , and persicaria -all cultivated plants . But it contained also 430 a considerable number of wild plants , such as.
Contents
Britains Fabulous Crown Colony on the South China | 6 |
War and Quiet on the Laos Frontier Everyday Life Goes On | 6 |
Scotlands Golden Eagles at Home Climbing Perilous Cliffs to Lofty Eyries | 6 |
Copyright | |
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