ScienceJohn Michels (Journalist) 1957 |
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Page 200
... recent standard easily we use carbon dioxide from a Na2CO3 - solution with a specific carbon - 14 content roughly 10 times that of recent wood . Table 2 contains some measurements on modern plants . As in Table 1 , the percentage ...
... recent standard easily we use carbon dioxide from a Na2CO3 - solution with a specific carbon - 14 content roughly 10 times that of recent wood . Table 2 contains some measurements on modern plants . As in Table 1 , the percentage ...
Page 333
... recent issue . Be sure to give both old and new addresses , including zone num- bers , if any . Annual subscriptions : $ 7.50 ; foreign postage , $ 1 ; Canadian postage , 50 ¢ . Single copies , 25 ¢ . Special rates to members of the ...
... recent issue . Be sure to give both old and new addresses , including zone num- bers , if any . Annual subscriptions : $ 7.50 ; foreign postage , $ 1 ; Canadian postage , 50 ¢ . Single copies , 25 ¢ . Special rates to members of the ...
Page 1234
... recent research in elementary science education , " Jacqueline Buck Mallinson , Western Michigan University ; " Implica- tions of the findings of recent research in elementary science education , " Muriel Beuschlein , Chicago ...
... recent research in elementary science education , " Jacqueline Buck Mallinson , Western Michigan University ; " Implica- tions of the findings of recent research in elementary science education , " Muriel Beuschlein , Chicago ...
Contents
Footandmouth virus photographed 553 | 2 |
Chlorpromazine and reserpine prevention | 7 |
3262 | 9 |
Copyright | |
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